What does primary succession begin with
Microbes
Plants
Bare rock
Soil
Answer:
primary succession begins with bare rock
Explanation:
hope this helps :)
What is the purpose of checkpoint proteins? *
Answer:
The key role of checkpoint proteins is to detect DNA damage and send a signal to delay cell cycle advance until the damaged chromosomes are repaired
Explanation:
While looking through a powerful microscope, you notice a type of one-celled organism you have not
seen before. Which of the following would help you classify the organism as a prokaryote or a
eukaryote?
a. Presence of a cell membrane
b. Presence of ribosomes
C. Presence of cilia or flagella
d. Presence of membrane-bound organelles
Answer:
d. Presence of membrane-bound organelles
Explanation:
Living organisms has been classified into prokaryotic or eukaryotic depending on the content of their cell. The basis of classification into prokaryote or eukaryote is the possession or not of a membrane-bound nucleus or organelle.
According to this question where a one-celled organism was seen in a miscrosope, PRESENCE OF MEMBRANE-MEMBRANE-BOUND ORGANELLES is the characteristics that will help in the classification of the organism as a PROKARYOTE OR EUKARYOTE.
Presence of membrane-bound organelles would help classify the organism
as a prokaryote or eukaryote.
Prokaryotes are defined as organism which don't have a true nucleus as a
result of the absence of the nuclear membrane. Eukaryotes on the other
hand have a true nucleus as a result of the presence of the nuclear
membrane.
When viewing a one-celled organism with a microscope, we are able to
classify the organism based on the presence or absence of a membrane-
bound organelle.
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Select the four statements that are true. Select the four statements that are true.
Based on the equation for Hardy-Weinberg equilibrium, the expected number of wolves with the FBFB genotype is 40.
Based on the equation for Hardy-Weinberg equilibrium, the expected number of wolves with the FBFB genotype is 12.
Based on the equation for Hardy-Weinberg equilibrium, the expected number of wolves with the FBFW genotype is 40.
Based on the equation for Hardy-Weinberg equilibrium, the expected number of wolves with the FBFW genotype is 96.
The population is not at Hardy-Weinberg equilibrium. The population may be evolving because the actual number of individuals with each genotype differs from the expected number of individuals with each genotype.
Answer: Based on the equation for Hardy-Weinberg equilibrium, the expected number of wolves with the FBFW genotype is 96.
Based on the equation for Hardy-Weinberg equilibrium, the expected number of wolves with the FBFB genotype is 12.
The population may be evolving because the actual number of individuals with each genotype differs from the expected number of individuals with each genotype.
The population is not at Hardy-Weinberg equilibrium.
Explanation:
The FB allele should accounts for 120 of the alleles (40 × 2 = 80 in FBFB wolves, + 40 × 1 = 40 in FBFW wolves).
the FB allele would make up 20% (120/600) of the total alleles in the population, so the value of p would be 0.2. The allele frequencies of the population must add up to one for it to be valid (what this means is p+q=1); therefore, since the value of p is 0.2, and the value of q is 0.8.
According to the Hardy-Weinberg equation, the expected frequencies of the genotypes would add up to 1.
= p2+2pq+q2
= 1
or
= 0.22+2(0.2)(0.8)+0.82
= 1
or
= 0.04+0.32+0.64
= 1
Answer:
Is this population in Hardy-Weinberg equilibrium?
✔ No
Which allele is increasing in the population?
✔ Allele C
Explanation:
Edge 22
Is there cytoplasm in cork cells?
no there is not so there ya go
Which states of matter have no definite shape or volume
what are the arguments against regulations aimed at reducing water pollution
Answer:
There are numerous forms of pollution and environmental problems that human beings have been causing since the beginning of the industrial revolution and, in particular, since the second half of the last century. Pollution without borders associated with all human activities and which, along with other serious problems, is degrading all ecosystems and contributing to climate change whose consequences we are already experiencing. The costs of this environmental degradation have not been taken into consideration until recently, but it is beginning to be understood that they must be incorporated in the evaluation of any project; They cannot be “outsourced”, as has been done, because it is absolutely unsustainable.
Explanation:
Answer:
The correct is D
Explanation
I know it is correct because i am doing it.
And i need help for this one
Recycling and composting are actions that individuals can take to __________.
A.
reduce water pollution
B.
reduce the amount of trash in landfills
C.
improve our energy efficiency
D.
reduce air pollution
And can you make me brainliest
"list eight details that must be documented when a vaccine is given?"
Which table correctly identifies the four most abundant elements in biomolecules
Answer:
are hydrogen, oxygen, nitrogen, and carbon,
Explanation:
which together make up over 99% of the mass of most cells. They are the lightest elements capable of forming one, two, three, and four bonds, respectively
The four most abundant elements in biomolecules are hydrogen, oxygen, nitrogen, and carbon,
What are different types of biomolecules ?The basic building blocks of the living organism are called as biomolecules which are Carbohydrates, Proteins, Fats, Nucleic Acids which make the components of a living cell.
Carbohydrates are polyhydroxy aldehydes or ketones collectively called as saccharides, it can be monosaccharide, oligosaccharide and polysaccharides based on the number of sugars in it.
Proteins are polymers of amino acids where number of amino acids are joined by peptide bond to form polypeptide chain which further converted into protein and it can be classified as primary, secondary, tertiary and quaternary protein.
Nucleic acids are up nitrogenous base, sugar and phosphate; It can be up two types namely, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
The nucleic acid carries the genetic information which is transferred from parent to next generation and proteins which express the genetic character by processes of transcription and translation.
Lipids are organic insoluble fat like substance, soluble in organic solvents like oil, they include sterols, fat-soluble vitamins, mono-, di- or triglycerides, phospholipids, etc.
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Where is the brain of a rotifer located?
Answer:
Mastax
Explanation:
Rotifers have a small brain, located just above the mastax, from which a number of nerves extend throughout the body.
Answer:
Just above the mastax
Explanation:
Rotifers have a small brain, located just above the mastax, from which a number of nerves extend throughout the body. The number of nerves varies among species, although the nervous system usually has a simple layout.
The three domains are___.
Roots____.
soak up water from the soil
hold the plant in the ground
store food and water
all of the above
All of the above!
Im 100% sure this is correct :)
For question 6 only :)
Answer:
B
Explanation:
Producers are organisms that create food from inorganic matter. The best examples of producers are plants, lichens and algae, which convert water, sunlight and carbon dioxide into carbohydrates. Consumers are organisms that cannot create their food. I think hehe
What is the difference between a food chain and a food web?
Answer:
Food chain: only shows the common sequence from producer to one tertiary consumer. Basically it only shows one sequence in which energy is distributed among the animals and plant life.
food web: provides a broader spectrum on the distribution of energy among the ecosystem of that terrain.
Which of the following statements regarding the human
population are TRUE? Select TWO.
SELECT ALL THAT APPLY
The world's population of humans is
increasing.
In every country, the human population is
increasing.
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant
Answer: Which of the following statements regarding the human
population are TRUE? Select TWO.
The world's population of humans is
increasing.
In every country, the human population is
increasing
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant.
Which of the following statements regarding the human
population are TRUE? Select TWO.
The world's population of humans is
increasing.
In every country, the human population is
increasing
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant.
Which of the following statements regarding the human
population are TRUE? Select TWO.
The world's population of humans is
increasing.
In every country, the human population is
increasing
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant.
Which of the following statements regarding the human
population are TRUE? Select TWO.
The world's population of humans is
increasing.
In every country, the human population is
increasing
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant.
Which of the following statements regarding the human
population are TRUE? Select TWO.
The world's population of humans is
increasing.
In every country, the human population is
increasing
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant.
Explanation:
Which of the following statements regarding the human
population are TRUE? Select TWO.
The world's population of humans is
increasing.
In every country, the human population is
increasing
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant.
The study of population is called demography.
The correct answer is A and C.
A group of the same species living together and interacting with other species is called a population.
The changes in the population are as follows:-
IncreasingDecreasingNeutralThe population can never be constant. The world's population is increasing every day. The birth rate is higher than the death rate.
But in countries, the population is decreasing because there the birth rate is lesser than the death rate due to which the population is decreasing.
Hence, the correct answer is A and C.
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Which list of organelles would you associate with an animal cell?
O A cytoplasm, nucleus, cell membrane, large vacuoles
B. cytoplasm, nucleus, endoplasmic reticulum, cell wall
O c. cytoplasm, nucleus, Golgi bodies, cell wall
O D. cytoplasm, nucleus, lysosome, ribosomes
O E. cytoplasm, nucleus, mitochondria, chloroplasts
In 1947, pilot Chuck Yeager became the first person in an airplane to fly faster than the speed of sound. He flew his plane about 12,000 meters above sea level. At that altitude, the speed of sound travels at 290 meters/second. At sea level, the speed of sound is about 340 meters/second. What conclusion can you make from this information?
A The speed of sound does not depend on altitude.
B The speed of sound depends on the type of plane flown.
C As the altitude increases, the speed of sound increases.
D As the altitude increases, the speed of sound decreases.
Which of the following is true? A b c d
Answer:
C
Explanation:
high fat diet is always bad for the body! it makes you gain weight, it makes you get heart problems, cancer, PCO(in ladies), muscle, bone, neck and back aches and most importantly, it makes your cells insulin-resistant which could cause type 2 diabetes.
if it is unclear or you need more explanation, ask freely. also if the answer was correct, please give me brainliest. I need them!
what is the word for this definition?
when an elements has more then one type each with the same number of protons but a different number of neutrons.
a. radioactive decay
b. half life
c. isotopes
d. daughter atoms
Tina creates the layered column of liquids shown below to demonstrate certain characteristics of the layers of the Earth Oil (density 0.s5 omL) Water (dernsity 1.00 pim -Corn syrup (densily 1.02 gml Density Column Which of the following is the biggest limitation of how this model can represent Earth? O Convection is not possible in this model OWaves, such as seismic waves from an earthquake, are not able to travel through this model O Density is not an important characteristic of Earth's layers O Relative thickness of the layers is not accurate
Answer:i think it’s B. Waves such as
Explanation:
Compare and contrast the random sampling and mark and recapture methods of
estimating population sizes. Describe a situation in which each method would
work best and why. Justify your answer.
Explanation:
jennjjj+ii8iiiiiiiuiiiiiiiu
Random sampling and mark and recapture methods are both commonly used to estimate population sizes, but they have different strengths and weaknesses.
What is random sampling?Random sampling involves selecting a random sample of individuals from a population and using that sample to make inferences about the population as a whole. This method is typically used when the population is large and diverse, and it is difficult to observe or count all individuals. Random sampling is also useful when the population is not easily marked or tagged, as it does not rely on the use of markers.
On the other hand, mark and recapture methods involve marking a subset of individuals in a population, then releasing them back into the population and later re-capturing them. The number of marked individuals that are recaptured is used to estimate the population size. This method is typically used when the population is small, and it is relatively easy to observe or count all individuals. Mark and recapture methods are also useful when the population is easily marked or tagged, such as with fish or birds.
A situation in which random sampling would work best is a study of the population of deer in a large forest. The forest is too vast to observe or count all individuals, so a random sample of deer would be selected and observed to estimate the population size.
On the other hand, a situation in which mark and recapture methods would work best is a study of the population of fish in a small lake.
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helppppppp:((((
predict whether a pot of water heated from the top would boil more quickly than a plt of water heated from the bottom. Explain your answer.
Water will boil faster when it is heated from the bottom rather than when it is heated from the top.
The boiling of water occurs due to convection currents. Heavier particles moves from upwards and travels downwards and then they are replaced by lighter particles traveling upwards. This is called convection currents.
As such, water will boil faster when it is heated from the bottom rather than when it is heated from the top.
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What might be the result if you shuffle the order of bases in an organism's DNA
molecules?
Answer:
It would have disastrous consequences on the viability of the individual
Explanation:
The genome can be defined as the genetic material of an organism, which is composed of DNA molecules named chromosomes whose building blocks are four different nucleotides: Adenine, Thymine, Cysotcine and Guanine. The order of these nucleotides specifies the information contained in the chromosomes and, ultimately, in the genome. The genes, which are recognized to be the basic units of inheritance, are genetic sequences composed of ordered nucleotides along the chromosomes. During transcription, a gene encodes different RNA codons (for example, start and stop codons) which are specified by the order of the nucleotide sequence. Finally, the order of the RNA codons will be critical to specify the polypeptide chain during the translation from RNA to protein.
explain where you observe reflection refraction and absorption of light in your every day life
Answer:
Reflection: you look in the mirror.
Refraction: You put a straw in a glass of water, and it looks like it broke.
Absorption: If you have a black sweater and you wear it out in the cold, the black sweater is going to hold in heat better than a lighter sweater because the black sweater absorbs light .
Transposons are movable elements of DNA that insert into new positions within the genome. A transposon may disrupt normal gene function, confer an evolutionary advantage, or have no effect on the organism.
Select all scenarios in which a transposon has positively contributed to the evolution of the host's genome.
a. insertion of a transposon encoding a heat shock protein into the genome of a plant
b. insertion of a transposon into the gene encoding for dystrophin, a protein involved in skeletal movement and cardiac function
c. aquisition of a transposon carrying an adhesin gene into the Lactobacillus casei genome
d. acquisition of a transposon that disrupts
e. an enhancer element of a colorectal cancer tumor‑suppressor gene acquisition of a transposon carrying a tetracycline resistance gene in a bacterium
Answer: Transposons are genomic sequences that can cause or reverse mutations by changing its positions.
Explanation:
a., and c. are the correct options.
The heat shock protein encoded by the transposon will increase the thermotolerance of the transgenic plant. It will also improve it's stress tolerance.
The adhesin genes will enable the bacteria to stick on the walls of the intestinal tract of humans and this will help human body in digestion process.
Is Food a better source of nutrients than dietary supplements.
Answer:
Supplements can plug dietary gaps, but nutrients from food are most important. The fresh food you eat is loaded with nutrients necessary for good health, such as magnesium, calcium, and vitamins A and C. But many older adults aren't getting enough nutrients from their diets.
Explanation:
Which image represents the step in mitosis when chromosomes condense and spindle fibers form?
Answer:
The process you described is called prophase
Explanation:
Since you dId not provide the pictures, this is what it's supposed to look like.
Answer:
A
Explanation:
What is Respiration?
___________________________________________________________
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The sodium-potassium pump is a membrane protein that pumps sodium out of the cell and brings potassium in. It does this against the concentration gradients; in other words, it pushes both molecules from areas of low concentration to areas of already high concentration. What type of transport is this?
a.passive transport, which requires energy
b.passive transport, which does not require energy
c.active transport, which requires energy
d.active transport, which does not require energy
How does the structure of proteins related to their function?
Answer:
Protein function is directly related to the structure of that protein. A protein's specific shape determines its function. If the three-dimensional structure of the protein is altered because of a change in the structure of the amino acids, the protein becomes denatured and does not perform its function as expected.I hope this helpsThe structure of proteins depends upon the sequence of amino acids joined together. The sequence of amino acids changes the function of proteins.
What are proteins?Large, intricate molecules known as proteins play a variety of vital functions in the body. They are crucial for the structure, operation, and control of the body's tissues and organs and carry out the majority of their job inside cells.
The relationship between a protein's structure and function is direct. The function of a protein is determined by its unique form.
The protein becomes denatured and ceases to function as intended if the three-dimensional structure of the protein is altered as a result of a change in the structure of the amino acids.
Therefore, the order in which amino acids are linked together determines how proteins are structured. The order of amino acids alters how proteins work.
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