Answer:
The boundaries between eons and eras are marked by huge geological events which can be seen in the fossil record. These events are often associated with mass extinctions, major changes in the Earth's climate or geology, or other significant shifts in the evolutionary history of life on Earth. For example, the boundary between the Precambrian eon and the Phanerozoic eon is marked by the appearance of hard-shelled organisms in the fossil record, while the boundary between the Mesozoic era and the Cenozoic era is marked by the mass extinction of the dinosaurs.
Explanation:
The geological time scale is divided into several major divisions, including eons, eras, periods, and epochs. These divisions are based on major events in the history of the Earth, such as the appearance or extinction of particular species, changes in climate, or major geological events like volcanic eruptions or asteroid impacts.
The boundaries between eons and eras are particularly significant because they represent major shifts in the evolutionary history of life on Earth. These shifts are often marked by mass extinctions, which occur when a large proportion of the Earth's species go extinct in a relatively short period of time. These extinctions can be caused by a variety of factors, such as changes in climate, geological activity, or the impact of a large asteroid or comet.
The fossil record provides evidence of these major events, allowing scientists to piece together the history of life on Earth and understand how different species have evolved and interacted with each other over time. By studying the fossil record and other geological evidence, scientists can gain insights into the processes that have shaped the Earth and its inhabitants over billions of years.
complete the table to summarize three human activities that use genetically engineered organisms
Ingredients that Americans consume, such cornstarch, high fructose corn, corn oil, soybean oil, olive oil, or granulated sugar, are made from several GMO crops.
What is referred to as an organism?A living thing is referred to as an organism. In general, molecules make up both living organisms and non-living objects. Nonetheless, a living creature can be distinguished from an inanimate object by its defining traits. One or more cells, for instance, make up an organism.
What do organisms mean in biology?Biological Organisms: Living creatures with the ability to respond to stimuli, reproduce, grow, and maintain homeostasis. Organisms are categorized by taxonomy into specific groupings, such as multicellular animals, plants, and fungi, or unicellular microbes like protists, bacteria, and archaea.
To know more about Organism visit:
https://brainly.com/question/16296324
#SPJ1
how are Large Ground Finches and Cactus Finches evidence of evolution
Darwin's ground finches noted that different finch species have different beak shapes. He proposed that an ancestor species' beak had evolved over time to allow the finches to use a variety of food sources.
Long, pointed beaks were useful for seizing insects, while broad, flat beaks are excellent for cracking seeds and nuts. These differences in food sources led to the evolution of finches.
Darwin's finches exhibit rapid ecological speciation and diversification as a result of rapid adaptation to an unstable and difficult environment. Their phenotypes now exhibit great diversity as a result of this (for instance, beak types, body size, plumage, feeding behaviour and song types).
The medium ground finches can crack open huge seeds in addition to little ones because they have larger beaks. A medium ground finch can still survive if the little seeds become scarce by utilising different sources of food, but small beaked birds, such as cactus finches, will starve to death.
The medium ground finch has an edge over cactus finches in terms of survival due to this adaption.
Learn more about ground finches here
https://brainly.com/question/12367681
#SPJ1
What causes a mountain breeze?
• A. The sides of the valley cooling off more quickly than the air around
it.
B. The albedo of clouds.
C. The difference in heating between freshwater and seawater
D. The difference in specific heat between altitudes.
SUBMIT
Answer:
D. The difference in specific heat between altitude
Explanation:
Hop it helps
Please mark brainliest
COMMUNITY
Define:
Describe interactions:
Examples of interactions:
Answer:
a group of people living in the same place or having a particular characteristic in common.
"the scientific community"
Explanation:
a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi
The lesser tubercle of the humerus is distal skeletal attachment site for the
The lesser tubercle of the humerus is distal skeletal attachment site for the subscapular fossa
The anterior surface of the humerus contains the tiny lesser tubercle. Muscles that function across the shoulder joint can attach to the larger and lesser tubercles.
The subscapularis, a primary adductor of the arm at the shoulder, inserts into the smaller tubercle of the humerus. It aids in preventing arm dislocation at the shoulder. The large deltoid tuberosity, which marks the location of the deltoid's insertion, is seen on the lateral surface of the humerus.
The lesser tubercle of the humerus receives the subscapularis muscle, which arises from the subscapular fossa. The muscle adducts and internally rotates the humerus. In the bicipital groove, the bicep tendon is located below the subscapularis tendon.
Learn more about subscapular fossa here
https://brainly.com/question/12977728
#SPJ1
Which statement best describes the law of conservation of energy?
A. Energy can be destroyed but not created.
B. The total energy in an open system can only decrease.
C. Energy can change forms but cannot be created or destroyed.
D. Energy can be created but not destroyed.
Suggest why it is very difficult to eradicate an introduced species,
once it has settled into a new place.
Answer: This is because they might not have any predators or there NATURAL ENVIROMENT IS DIFFICULT to find or destroy
Explanation:
which of the following statements about action potentials in a given neuron is false? A. they occur after the threshold potential is reached.
B. they are identical in duration.
C. they are propagated down the length of the dendrite.
The statement which is wrong about action potentials in a given neuron is that they are identical in duration.
B is the correct answer.
The electrical impulses generated by neurons in reaction to a stimulus are known as action potentials. They are distinguished by a fast depolarization followed by repolarization of the membrane potential of the neuron. When the threshold potential is reached, the neuron produces an action potential, which propagates down the dendrite and causes neurotransmitters to be released.
However, action potentials in a particular neuron may not have the same duration; depending on the neuron, there may be minor differences in duration. This is because the duration of an action potential is affected by several factors, including the properties of the ion channels in the neuron's membrane, the strength of the stimulus, and the neuron's overall physiological state.
To know more about Neuron visit:
https://brainly.com/question/29462317
#SPJ4
In order to perform work on an object, you must apply a
[ Select I
[ Select I
[ Select ]
Heat
Distance
Time
Potential Energy
Temperature
Kinetic Energy
Force
Answer:
Distance is the answer
Explanation:
According to the formula of work
Work: Force × Distance
Hence distance must be applied to perform work
Answer:
force
Explanation:
force is the application to apply potential energy to perform the work
What did Malala's dad mean when he said, "It's a good thing to come in second." (Ch. 5)
A: Winning all the time can make kids not want
to play with you.
B: No one is perfect.
C: You should learn to be a good loser, not just
a good winner.
D: It is good to sometimes let others win.
Answer:
Based on the context provided, Malala's dad likely meant that "It's a good thing to come in second" because "You should learn to be a good loser, not just a good winner."
Identify 3 imaging technologies that are used to determine the structure of plants. For
one of these technologies, briefly outline its use.
Answer:
Abstract
Given the rapid development of plant genomic technologies, a lack of access to plant phenotyping capabilities limits our ability to dissect the genetics of quantitative traits. Effective, high-throughput phenotyping platforms have recently been developed to solve this problem. In high-throughput phenotyping platforms, a variety of imaging methodologies are being used to collect data for quantitative studies of complex traits related to the growth, yield and adaptation to biotic or abiotic stress (disease, insects, drought and salinity). These imaging techniques include visible imaging (machine vision), imaging spectroscopy (multispectral and hyperspectral remote sensing), thermal infrared imaging, fluorescence imaging, 3D imaging and tomographic imaging (MRT, PET and CT). This paper presents a brief review on these imaging techniques and their applications in plant phenotyping. The features used to apply these imaging techniques to plant phenotyping are described and discussed in this review.
Keywords: phenotyping phenotype, fluorescence imaging, thermal infrared imaging, visible light imaging, imaging spectroscopy, three dimensional imaging
1. Introduction
To ensure that crop production is sufficient to satisfy the needs of a human population that is expected to grow to more than 9 billion by 2050 is a tremendous challenge for plant science and crop improvement [1]. This goal is challenging primarily because the average rate of crop production increase is only 1.3% per year, and it cannot keep pace with population growth. By connecting the genotype to the phenotype, high yielding, stress-tolerant plants can be selected far more rapidly and efficiently than is currently possible. Advances in techniques such as next generation DNA sequencing can be made available to breeders to provide potential increases in the rate of genetic improvement by molecular breeding [2]. However, the lack of access to phenotyping capabilities limits our ability to dissect the genetics of quantitative traits related to growth, yield and adaptation to stress. Plant breeders and farmers were making selections based on phenotypes long before the discovery of DNA and molecular markers. To identify the best genetic variation, the more crosses and environments that are used for selection, the greater the probability of identifying a superior variation. To meet future requirements, there is a need to increase breeding efficiency. Advances in high throughput genotyping have offered fast and inexpensive genomic information and paved the way for the development of large mapping populations and diversity panels of thousands of recombinant inbred lines for phenotyping [3]. Although molecular breeding strategies have placed greater focus on selections based on genotypic information, they still require the following phenotypic data [4]: (1) phenotypes are used for selection and to train a prediction model in genomic selection; (2) a single phenotyping cycle is used to identify markers for subsequent selection through generations within the maker-assisted recurrent selection [5]; and (3) phenotyping is necessary to identify promising events in transgenic studies [6]. Phenotyping advances are essential for capitalizing on developments in conventional, molecular, and transgenic breeding.
Explanation:
You are running a peach farm on western slopes of Colorado. You know that the allele for fuzzy peaches is recessive and that this allele (f) has frequency of 0.7. In a sampling of 500 peaches. How many fuzzy peaches do you expect to find?
Given that the allele for fuzzy peaches is recessive and has a frequency of 0.7. This means that the frequency of the dominant allele (F) will be (1-0.7) = 0.3.
Let's use the Hardy-Weinberg equation to calculate the expected number of fuzzy peaches in a sample of 500:
p^2 + 2pq + q^2 = 1
where
p = frequency of the dominant allele (F) = 0.3
q = frequency of the recessive allele (f) = 0.7
The genotype frequencies can be calculated as follows:
FF = p^2 = (0.3)^2 = 0.09
Ff = 2pq = 2(0.3)(0.7) = 0.42
ff = q^2 = (0.7)^2 = 0.49
The expected frequency of fuzzy peaches (ff) is 0.49. Therefore, the expected number of fuzzy peaches in a sample of 500 would be:
Number of fuzzy peaches = expected frequency of fuzzy peaches x sample size
= 0.49 x 500
= 245
Therefore, you would expect to find 245 fuzzy peaches in a sample of 500.
In what meiotic stage does crossing over occur?
In the metaphase which is a meiotic stage crossing occurs.
What is a meiotic stage?Meiosis seems to be a process of cell division that typically results in the production of four gamete cells and just a 50% reduction in the number of chromosomes there in the parent cell. To develop the cells that makeup eggs and sperm during sexual reproduction, this procedure must be performed.
When every one of the chromosomes is lined up in the center of the cell during metaphase, attempting to cross over takes place. They can cross across because they are so close together. They can cross across because they are so close together. Crossing crossover occurs in anaphase on every pole of the animal cell where other chromosomes are crowded tightly.
Learn more about the meiotic stage, here:
https://brainly.com/question/30245723
How does horizontal gene transfer differ from vertical gene transfer?
Answer:
the acquisition of genetic material from an ancestor.
Explanation:
hope this helps
In the U.S., GMOs face different kinds of regulations, depending on the details of how the modification was done.
4. Do you think cisgenic and transgenic organisms should be subject to the same regulations? Explain why or why not.
If in the U.S., GMOs face different kinds of regulations, depending on the details of how the modification was done, then cisgenic and transgenic organisms should be subject to the different regulations because they are different categories of foods.
What is the main difference between cisgenic and transgenic organisms?The main difference between cisgenic and transgenic organisms is based on the fact that cisgenesis involves the transference of genetic material between organisms of the same species, and transgenesis involved different species.
Therefore, with this data, we can see that the main difference between cisgenic and transgenic organisms is the species.
Learn more about transgenic organisms here:
https://brainly.com/question/3443891
#SPJ1
what causes the cell to have different structures and functions?
The structural and functional characteristics of different types of cells are determined by the nature of the proteins present.
Answer :
The nature of the proteins present dictates the structural and functional properties of many cell types. Cells are not only characterized by by their genetic material and other interior components, but also by the genes they express. Cells have to fulfill multiple different functions to be able to build complex multicellular organisms. Differently expressed genes lead to different proteins made in the cell, which leads to different morphology, shape or function.
A human and a bat share a common ancestor. According to the article, which evidence supports this relationship?
Their teeth have the same structure and function.
Their arm bones have the same structure and function.
Their teeth have the same structure, but not function.
Their arm bones have the same structure, but not function.A human and a bat share a common ancestor. According to the article, which evidence supports this relationship?
Their teeth have the same structure and function.
Their arm bones have the same structure and function.
Their teeth have the same structure, but not function.
Their arm bones have the same structure, but not function.
Answer:
Explanation:
According to the article, the evidence that supports the relationship between humans and bats sharing a common ancestor is that their arm bones have the same structure and function. Specifically, the article mentions that the bones in the wings of bats are homologous to the bones in the arms of humans and other mammals. This indicates that the wings of bats evolved from the arms of a common ancestor shared with humans and other mammals. The article does not mention anything about the teeth of humans and bats having the same structure or function. Therefore, the correct answer is:
Their arm bones have the same structure and function.
Answer: D
Explanation:
Humans belong to order___________ and family _________
Answer:
primate order and homo sapiens
Explanation:
Describe four types of drugs and their impact on sports performance
Evaluate the impact of four different performance enhancing drugs on performance in four different types of sport
Discuss using relevant examples, why some individuals may resort to using performance enhancing drugs in sport
Examples:
1. Creatine
-Improves muscle mass
-Less Fatigue during games
-Injury prevention
-Decreased Dehydration
This Drug would be perfect for American Football or any other physical activities.
2. Caffeine
-Keeps you awake
-Energy booster
-Hydration qualities
Good for Soccer or basketball
3. Steroids
-Increased muscle mass
-Energy booster
Good for any sport
Why did Darwin compare his theory of natural selection to Copernicus's theory that Earth orbited the Sun?
The heliocentric theory of the cosmos, developed by Copernicus's theory, moved humans away from the actual centre of the universe. A theory of evolution was created by Charles Darwin.
What parallels exist between the Copernican and Darwinian revolutions?It is possible to think of the Copernican and Darwinian Revolutions as the two phases of a single Scientific Revolution. Together, they marked the beginning of science in the contemporary sense: the study of natural laws as explanations.
What distinguishes Darwin's theory of evolution from the concept of natural selection?According to the Darwinian Theory of Evolution, natural selection, which drives evolution, is skewed by the traits that organisms inherit from their ancestors. The capacity for adaptation is what aids organisms in natural selection-based evolution.
To know more about Copernicus's theory visit :-
https://brainly.com/question/22477117
#SPJ1
13. Analyse TWO possible consequences that corruption may have on a person's career.
5. What the ABC's of The Cell Theory?
Answer:
The answer would be "All living things are made of cells"..
Explanation:
The three parts of the cell theory are:
A. All living things are composed of cells.
B. Cells are the basic units of structure and function for living things.
C. All cells come from pre-existing cells. Also, organisms grow by “adding on more cells” NOT by increasing the size of their cells.
I hope this might help you
Write a response paper on chapter 6 (Sensation and ⇒ perception) at least 2 page or longer
Online book Psychology davidG. Myers. Don’t write a summary, be creative
This is the suggested question.
1. One thing you learned from the chapter that fascinated you. Why did it fascinate you?
2. One thing that confused you about the chapter. Why did it confuse you?
3. If you had a million-dollar research grant, what phenomenon from the chapter would you study? Why? How?
4. How do you think variables such as socio-economic status, culture, religion, geographical background influence one of the topics in the chapter?
5. For those of you who have an idea of what you would like to do when you graduate college, how does one of the topics in the chapter relate to your future career choice?
6 How does one of the topics in the chapter relate to something you read about in the news, from history, or pop culture?
Remember these are just a suggested question you don’t have to follow all of the question just be create paper should be 2 pages ir longer. Make At least 10 long paragraph
1. One interesting topic covered in the book is the concept of memory, specifically the process of forgetting.
Why is the Online book Psychology by G. Myers fascinating?I found it fascinating to learn about how forgetting is actually a natural and adaptive process that helps us prioritize information that is most important to us. Additionally, the book explains how different factors, such as interference and emotional arousal, can impact our ability to retrieve information from our memory.
2. One concept that may confuse some readers is the difference between implicit and explicit memory.
Why did the memory set confuse one?Implicit memory refers to the unconscious memories that influence our behavior and thoughts, such as our ability to ride a bike or speak a language. On the other hand, explicit memory involves conscious recollection of past events or facts, such as remembering what you ate for breakfast this morning. The distinction between these two types of memory can be a bit confusing at first, but the book provides helpful examples and explanations to clarify the difference.
Read more about Psychology
brainly.com/question/12011520
#SPJ1
You are running a peach farm on the western slopes of Colorado. You know that the allele for fuzzy peaches is recessive and that this allele (f) has frequency of 0.7. You count 250 fuzzy peaches and 250 bald peaches. Determine whether or not this population is still in Hardy Weinberg equilibrium
This population is not in Hardy-Weinberg equilibrium, and there is some evolutionary force at work (such as mutation, selection, or genetic drift) causing the observed deviation from expected genotype frequencies.
To determine whether or not the population is in Hardy-Weinberg equilibrium, we can use the Hardy-Weinberg equation:
p²2 + 2pq + q² = 1
where p is the frequency of the dominant allele (in this case, the allele for bald peaches), q is the frequency of the recessive allele (the allele for fuzzy peaches), p² is the frequency of homozygous dominant individuals (bald-bald), 2pq is the frequency of heterozygous individuals (bald-fuzzy), and q² is the frequency of homozygous recessive individuals (fuzzy-fuzzy).
In this case, we are given that q (the frequency of the fuzzy allele) is 0.7. We can calculate p as:
p = 1 - q
p = 1 - 0.7
p = 0.3
We can then use the equation to calculate the expected frequencies of each genotype:
p² = (0.3)² = 0.09
2pq = 2(0.3)(0.7) = 0.42
q² = (0.7)² = 0.49
We can convert these expected frequencies to expected counts by multiplying by the total number of individuals:
Expected count of bald-bald (p²): 0.09 x 500 = 45
Expected count of bald-fuzzy (2pq): 0.42 x 500 = 210
Expected count of fuzzy-fuzzy (q²): 0.49 x 500 = 245
We can then compare these expected counts to the observed counts (250 fuzzy peaches and 250 bald peaches) to see if they are significantly different. We can use a chi-square goodness-of-fit test to make this comparison:
chi-square = ∑((observed - expected)² / expected)
chi-square = ((250 - 245)² / 245) + ((250 - 210)² / 210) + ((0 - 45)² / 45)
chi-square = 1.96 + 24.4 + 45
chi-square = 71.36
To determine if this chi-square value is significant, we need to compare it to the critical value from a chi-square distribution with 2 degrees of freedom (3 genotypes - 1). The critical value is 5.99 when the significance level is set to 0.05. We can rule out the null hypothesis that the population is in Hardy-Weinberg equilibrium since our computed chi-square value (71.36) is higher than the crucial value (5.99).
Learn more about Hardy-Weinberg equilibrium here:
https://brainly.com/question/30972392
#SPJ1
The are 5 different types of white blood cells. Looking at their names, how would you categorize them into two groups?
Answer:
The five types of white blood cells are neutrophils, lymphocytes, monocytes, eosinophils, and basophils. They can be categorized into two groups based on their staining properties: granulocytes (neutrophils, eosinophils, and basophils) and agranulocytes (lymphocytes and monocytes).
Explanation:
. Explain the reciprocal relationship the dolphins have with the fishermen in Laguna.
Answer:
Parasitism
Explanation:
One is benefit on the other hand the other is harmed
Dolphins are friendly animals to humans on the other hand humans can harm or torture dolphins by training them on force or kill them
As global meat production continues to rise, more and more of Earth’s land will be converted to agricultural land. As a result, the negative impacts of land use on wild species and their habitats will also increase.
In a recent study, a group of scientists looked at how an increase in agricultural land from 2010 to 2050 would affect different species. The study examined nearly
20,000, amphibian, bird, and mammal species. For each species, the scientists predicted if it would gain, lose, or have no change in habitat due to new agricultural land. Their results are given in the table below.
Approximately what percent of the species are predicted to lose habitat by 2050?
Round your answer to the nearest whole percent.
Without numeric data or a data table, we can't calculate the percentage. However, generally the percentage is found by dividing the number predicted to lose habitat by the total, then multiply by 100.
Explanation:The provided question does not contain any numerical data or a data table, thus we can't calculate the percentage of species predicted to lose habitat by 2050. However, assuming you have the necessary data from the study including the total number of species and the number predicted to lose habitat, you would divide the number of species predicted to lose habitat by the total number of species, then multiply the result by 100 to get the percentage. Ensure to round off your answer to the nearest whole percent as requested.
Learn more about Percentage Calculation here:https://brainly.com/question/329987
#SPJ2
The graphs represent the growth of two populations of
American bullfrogs in neighboring habitats.
Population
Habitat A
Time
Population
Habitat B
Time
Which statement is supported by the information provided?
A. Habitat A has more living space that is suitable for bullfrogs.
O B. Habitat B has more predators of bullfrogs.
O C. Habitat B contains more resources for bullfrogs.
O D. Habitat A can support a larger population of bullfrogs.
Eat natural food. By reducing pesticide and fertilizer use, you at once assist in reducing the quantity of chemical contamination that affects many amphibian species. Avoid releasing environmental estrogens into the water.
What is the habitat choice of the American bullfrog?A. Habitat A has greater living area that is suitable for bullfrogs. O B. Habitat B has extra predators of bullfrogs. O C. Habitat B consists of more sources for bullfrogs. O D. Habitat A can aid a larger population of bullfrogs.
American bullfrogs occupy a extensive vary of each herbal and manmade habitats, inclusive of lakes, ponds, swamps, marshes, brackish waters, streams, rivers, ditches, and canals. They pick warm, sluggish or stagnant waters with abundant vegetation, however are additionally observed along the shores of lakes and banks of streams.
Learn more about neighboring here;
https://brainly.com/question/15668415
#SPJ1
Describe four different types of drugs and their impact on sports performance
Evaluate the impact of four different performance-enhancing drugs on performance in four different types of sport
Discuss, using relevant examples, why some individuals may resort to using performance-enhancing drugs in sport
Finish the statement. Differences in temperature cause movement of air. This sinking of cold air and rising of warm air is the way heat moves in Solids Convection Evaporation Radiation