Answer:
i think its c, 85% sure :D
Explanation:
Select three of the components that were proposed by Darwin for natural selection to occur. Check All That Apply Populations experience differential reproductive success.Populations experience differential reproductive success. Breeding is done intentionally with the intent to increase the frequency of desired traits.Breeding is done intentionally with the intent to increase the frequency of desired traits. Variation within a population is heritable.Variation within a population is heritable. Populations experience competition for resources.Populations experience competition for resources. The variations in a population make no difference in terms of reproductive success.The variations in a population make no difference in terms of reproductive success.
Answer:
.Variation within a population is heritable. Populations experience competition for resources.
Explanation:
Variation exist among individual, and this makes individual unique. Variation in shape,size,color exist in an organism.
Traits or character can be inherited from parents which means it can be transfer from one person or individual to another.
Each organism posses different traits for survival, some traits are presents as to better help some organism adapt to their environment.
explain how the last food chain represents a full circle of life
Answer:
the last food chain is the last predator of the enature food chain which ends that particular food chain and inturn the circle of life
The last food chain represents a full circle of life by:-
Detritivores and decomposers are the final part of food chains. Detritivores are organisms that eat dead plant and animal remains. Energy is passed from plant to animal to animal to decomposer and back to plant.What is food chain?The food chain describes who eats whom in the wild. Every living thing needs food to survive.Each food chain is a possible pathway that energy and nutrients can follow through the ecosystem.To know more about food chain here
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How many ATP molecules are made with each glucose in the Krebs?
A. 1
B. 2
C. 4
D. 38
E. 100
Answer:
B. 2
Explanation:
Because for each glucose molecule there are two pyruvic acid molecules entering the system, two ATP molecules are formed.
Identify structure B in Figure 12-5:
A) aRNA
B) mRNA
C) rRNA
D) tRNA
I need help please
Answer:
B
Explanation:
mRNA is the messenger RNA that exits the nucleus and moves over to the ribosome, but it doesn't go in, tRNA goes in, figure G is tRNA.
Structure B given in the diagram is mRNA which is released out of the nucleus to undergo translation for the synthesis of proteins. So option B is correct.
What is the role of mRNA in protein synthesis?The mRNA carries the genetic information of an individual from the nucleus of the cell to the cytoplasm. The information encoded in the DNA is first transcribed into mRNA and the mRNA is then transported into the cytoplasm for translation.
The process of translation is aided by the protein factories of the cell which are the ribosomes. The ribosomes bind onto the mRNA and start the process of synthesis with the help of the initiator tRNA and further elongate the chain of amino acids to synthesize a complete polypeptide. There are two different types of ribosomes present in the prokaryotic and eukaryotic cells to carry out translation.
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Why are molecular clocks important in the construction of cladograms? They compare the frequency of reproduction to determine which traits evolved through mutations. They compare the genes inherited by a species to determine descendants. They compare the number of mutations to determine how long ago species separated and evolved.
Answer: They compare the number of mutations to determine how long ago species separated and evolved.
You're welcome!
Answer:
C.They compare the number of mutations to determine how long ago species separated and evolved.
Explanation:
this is correct
If a scientist found a beaker of a substance in a lab, which of the following would the scientist most likely use to identify the substance?
A. taste, smell, touch and sound
B. Melting point, ability to burn, boiling point and density
C. Poking, prodding, pouring and partaking
D. Research on Wikipedia
10 points!!!
In a series circuit with three bulbs,
a.
there are many paths for the current to take.
b.
the remaining two bulbs are not affected if one bulb burns out.
c.
all of the bulbs become dimmer as more bulbs are added.
d.
a switch is never used.
Answer:
C
Explanation:
Because more bulbs are add the dimmer they get
What are two ways scientists use evidence of past environments preserved in rock?
I think it is A and D (at least those are the ones that made the most sence to me).
In the presence of oxygen, _____ molecules of ATP can be formed during cellular respiration.
A. 36 to 38
B. 19 to 24
C. 2 to 4
D. 63 to 68
E. 38 to 42
What evidence does the author provide to support the claim that biomass can help companies save money?
A Biomass can be converted to other useable forms of energy, such as methane gas, or transportation fuels, such as ethanol and biodiesel."
B About 80% of the wood and wood waste fuel used in the United States is consumed by industry, electric power producers, and commercial businesses."
C Many manufacturing plants in the wood and paper products industry use wood waste to produce their own steam and electricity."
D There are about 76 waste-to-energy plants in the United States that nenerate electricity or produce steam."
Answer:
C
Explanation:I took the test and I got 100% hope it helps
4. Write the complementary DNA strand for the given strand of DNA.
a. CATAAGCACTTAGGC -
b. CCAGAGTAGCCAGGT-
help plss huhuhu i need answer
Answer: A. GTATTCGTGAATCCG
B: GGTCTCATCGGTCCA
Explanation:
G goes with C and A goes with T
Remember with a song:
Apples go in trees, Cars in the garage
Which of the following best compares Linnaeus's classification system to the classification system developed by Carl Woese and his colleagues in the 1990s?
Linnaean taxonomy classifies organisms into kingdoms based on physical traits, while Woese's classification sorts organisms into domains based on genetic differences.
Linnaean taxonomy classifies organisms into domains based on complexity, while Woese's classification sorts organisms into kingdoms based on method of obtaining nutrients.
Linnaean taxonomy classifies organisms into realms based on geographic location, while Woese's classification sorts organisms into domains based on method of reproduction.
Linnaean taxonomy classifies organisms into taxa based on size, while Woese's classification sorts organisms into kingdoms based on physical traits.
Answer:
The correct answer is - Linnaean taxonomy classifies organisms into kingdoms based on physical traits, while Woese's classification sorts organisms into domains based on genetic differences.
Explanation:
Linnaean classification is set up by Carl Linnaeus which is used to divide and organized organisms into different groups according to some similar basic features such as physical traits. It was the most basic type of classification.
The classification of Carl Woese was based on the different genetic differences to categorize or group organisms. This was a three-domain system that includes Bacteria, archaea, and eukarya.
Answer:
Linnaean taxonomy classifies organisms into kingdoms based on physical traits, while Woese's classification sorts organisms into domains based on genetic differences.
Explanation:
took test
What’s the Florida reptile (guess don’t search)
Answer:
American Alligator
Explanation:
Knowledge
Answer:
ᵗʰᵉ ᵃᵐᵉʳⁱᶜᵃⁿ ᵃˡˡⁱᵍᵃᵗᵒʳɪs ᴛʜᴇ ʀᴇᴘᴛɪʟᴇ.A cellular biologist is curious as to why a protein is not being expressed even though they placed the needed transcription factors and ribosomes allowing for the transcription and translation of the protein to take place in the cell. They look at the mRNA and find it is being translated and exported to the nucleus but ribosomes are not binding to it. After careful observation she finds out that the mRNA is missing its _____________. Without this of course ribosomes would have an issue binding to the mRNA and inducing translation.
Answer:
5' cap
Explanation:
In eukaryotes, the 5′ end of mRNA in eukaryotes is modified (i.e., capped) with a guanine nucleotide which is connected to mRNA via 5´→ 5´ triphosphate linkage. The five-prime cap (5′ cap) is denoted as 7-methylguanylate cap (m7G) because guanosine is methylated at the 7 position by a 7-methyl transferase. This cap acts to protect the mRNA from degradation and also is required during translation initiation in order to mediate a process known as ribosome recruitment. This process (ribosome recruitment) occurs through the association of the 43S preinitiation complex (composed of the small ribosomal subunit, eIF1, eIF1A, eIF2, eIF3 and eIF5 factors) with the 5' capped mRNA. After mRNA binding, the 43S preinitiation complex is ready to scan an initiation codon in order to start the translation.
A K-selected species will exhibit which of
the following characteristics?
A. wildly fluctuating population size
B. generalized niche
C. early reproductive age
D. low population growth rate
Answer:
it's D
Explanation:
This is because K-selected species produce fewer offspring in their life time compared to R-selected species therefore their growth rate is lower.
The option or characteristic that will be exhibited by K-selected species is that it has a low population growth rate. Thus, the correct option for this question is D.
What is a K-selected species?A K-selected species may be defined as a more or less stable population adapted to exist at or near the carrying capacity. These types of species have specialized niches along with a logistic growth model.
The reproductive rate of these species is low as compared to r-selected species. Reproductive age is late. They have a fairly strong competitive ability due to which they show very less fluctuation in population size. Examples of these species may include canopy trees, large mammals, large turtles, some parrots, etc.
Therefore, the option or characteristic that will be exhibited by K-selected species is that it has a low population growth rate. Thus, the correct option for this question is D.
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Five general characteristics of organisms in kingdoms Plantae or Fungi are listed in the box. Which table correctly lists the characteristics of the organisms in the two kingdoms?
Answer:
B
Explanation:
C table correctly lists the characteristics of the organisms in the two kingdoms. So, the correct option is C.
What is Five kingdom classification?The system of biological kingdoms is the way in which science classifies living things in order of evolution according to their ancestors which means all species that make up these five large groups. Some recent theories divide them further into six or seven showing the common ancestors and sharing some of their genes which belong to the same family tree.
Along with the kingdoms of living things, there are other taxonomic categories within the same classification system, such as, for example, domain, kingdom, phylum, class, order, family, genus, and species.
Therefore, the correct option is C.
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griculture: Mastery Test
After many years of research Isabella presented her report in a scientific conference. Arrange the steps of her scientific work till she
presented her report.
She read and reviewed all the previous
articles about increasing the nutritional
value of potatoes
Control groups experimental design
method was used
Isabella wanted to improve the nutritional
value of potatoes
She collected the relevant and required
data
She constructed a hypothesis about a
particular method
She presented her report
She submitted her proposal to her
universily, stating the purpose and time
required for the project
She reached a conclusion about her
project
0
局
Answer:
1. Isabella wanted
2.She read and reviewed
3.She constructed a hypothesis
4.She submitted her proposal
5.Control groups
6.She collected
7.She reached a conclusion
8.she presented
Explanation:
I got it right
(WILL GIVE BRAINLIST)
3. The central nervous system is the _______________________ center of the body. It includes the brain and the spinal cord
Answer:
In my opinion it is the main control center of the body.
Those individuals that are better able to survive in the Environment tend to be:
Answer:
Fit
Explanation:
They are the ones who are strong enough to survive.
Bill Nye Earth's crust
Answer:
1. rock
2. on
3. mantle
4. volcanoes
5. active
6. lava
7. hot
8. coolest
9. geyser
10. resistant
11. tectonic
12. tectonic/pangea
13. caves
14. earthquake
15. crust
Explanation:
What level of organization is shown in the image
Image Courtesy of 3D Science.com
Based on the image above, which of the following digestive system organs performs both mechanical and chemical digestion?
Answer: Option A
Explanation:
Answer:
A.
Explanation:
Digestion begins in the mounth. Mechanical digestion is the actual chewing of the food, and the chemical digestion begins when the saliva secretes digestive enzymes.
Why is adequate lighting necessary in a balanced aquarium?
a. Fish need light to see their food.
b. Fish take in oxygen in the dark.
c. Plants expel carbon dioxide in the dark
d. Plants grow too rapidly in the dark.
Answer:
A. Fish need light to see their food
Explanation:
B is incorrect because fish take in oxygen constantly to respirate. If they only took in oxygen when it was dark they would die.
C is incorrect because expelling CO2 is also a constant process as a part of the reactions that take part inside living organisms, so it happens constantly (a bit like B)
D is incorrect because plants need light for food (photosynthesis) and would most likely die or have stunted growth if left in the dark.
A is correct because when it is dark, fish rely on other senses to find food as most fish cannot see as well in the dark, therefore when they have light they can see their food more easily.
Hope this helped!
PLEASE HELP 5TH GRADE SCIENCEEEE AHHHHHHHHH PLEASE HELP ME IM GONNA FAIL IF I DONT GET THIS Alanna spots a bird in her back yard. The bird is sitting on a tree. Explain how the outer coverings of the bird and tree are different and have different functions.
Answer:
The purpose of the outer covering of the bird helps keep it warm and to help it fly, whilst the outer cover of the tree is to protect it from bugs.
Explanation:
Answer: Bird: helps protect it from the environment. Tree: To help reduce water loss.
Explanation:
The outer covering of the bird helps protect it from cold weather, while the outer covering of the tree helps it to reduce water loss.
Please give it a 5 star!
Deoxyribose (sugar). Total number in image?
Answer:
Formula: C5H10O4
Molar mass: 134.13 g/mol
Solubility in water: Very soluble
Melting point: 91 °C (196 °F; 364 K)
Appearance: White solid
Classification: Pentose, Deoxy sugar
The amount of water circulating around the planet is always
A. fixed (staying the same.)
B. decreasing.
C. increasing.
Answer:
The answer would be fixed.
Explanation:
According to the law of conservation of energy, energy cannot be created or destroyed. I can safely assume it is the same with the flow of water on the Earth’s surface. Also, according to what is known about the water cycle, it is impossible for water to simply disappear from the face of the Earth.
Let me know if I am correct! :>
Answer:
A. fixed (staying the same.)
Explanation:
The amount of water circulating around the planet is always fixed (staying the same.)
5. What helps predict the weather now? A. tea leaves B. sky color C. radios D. computers
Should be D. Bc of satellites being kinda similar to a computer.
I think it's C.
Hope it helps
Climates near the ocean are milder than climates farther inland. (True or False)
Answer: TRUE
Explanation:
In regards to the Central Dogma... Select one: a. Transcription involves RNA polymerase which is recruited to origins of replication by transcription factors b. Eukaryotic mature messenger RNA, exported from the nucleus to cytoplasm, has been spliced and modified at the 5' and 3' end. c. The 5' cap is a modified cytosine nucleotide and the 3' polyA tail is comprised of 50-250 alanine residues. The purpose is to stabilize the mRNA. d. The mature messenger RNA is translated by the ribosome in the cytoplasm. The ribosome reads the mRNA in a 5' -->3' direction while synthesizing protein in a N-->C direction e. multiple of the options are true
Answer:e. multiple of the options are true
Explanation:
DNA central dogman involves DNA replication, DNA transcription and DNA translation which involves the formation of protein.
Replicated DNA are transcribed to an intermediary mRNA(Messenger ribonucleic acid) from where it is moved from the nucleus to ribosome in the cytoplasm. Enzyme RNA polymerase helps in proof reading ,replication and transcription of bases during transcription. translation takes place in the ribosome with the help of ribosome in the presence of enzyme tRNA (transferase ribonucleic acid) that reads the codon and brings corresponding amino acid which are functional protein.
What causes the differences in average temperature and the changes
in day length that we associate with change in seasons on Earth?
Answer:
The Earth's axial tilt is what causes the differences in average temperature that are associated with the change in seasons on Earth
Explanation:
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