what role do variations have in the theory of evolution by natural selection?
Answer:
variation means that some individuals have traits better suited to the environment than others. so in natural selection everyone's adaptions and traits are different and variated. not everyone is gonna have the best adaptation, that would make everyone op.
make sure to answer it in your own words lol, if you copy and paste itll
link your teacher to this answer
Which type of selection leads to increased phenotypic and genetic varialion?
directional selection
disruptive selection
stabilizing selection
species selection
Which option identifies the best action to take in the following scenario?
As Phil begins working, he notices the blade of his circular saw is dull.
O He should apply more pressure.
He should clean the material.
He should use a new blade.
O He should heat the blade.
What is the Golgi's function pls help
Answer:
A major function is the modifying, sorting and packaging of proteins for secretion. It is also involved in the transport of lipids around the cell, and the creation of lysosomes. The sacs or folds of the Golgi apparatus are called cisternae.
Explanation:
definition:
an organelle that transports proteins and some lipids
in a greenhouse you can control the temperature, light intensity, and carbon dioxide level in order to make it the what factor in photosynthesis
Answer:
Limiting factor
Explanation:
A limiting factor is simply anything in short supply that prevents a reaction from occurring at its maximum rate.
In a greenhouse you can control the temperature, light intensity, and carbon dioxide level which are the limiting factors in photosynthesis for the production of glucose.
What is limiting factor?A limiting factor is a variable that produce a change in output of a process or a chemical reaction. Every process has its limiting factors which bring a change in it.
So we can conclude that temperature, light intensity, and carbon dioxide level which are the limiting factors in photosynthesis.
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This is study island pls help.
Answer:
D!!! pesticides are used to keep bugs off from plants! they're all correct! GMO's are used for all of that
Answer:
D - all of the above
Explanation:
all of them are true
The muscular system is responsible for body movements, support, and production of body heat.
O True
O False
Answer:
That is true it is responsible for the body movement
Mark as brainliest if I'm correct
what is chemical effect ?
a process that involves rearrangement of molecular or ionic structure, as distinct from a change in physical form or a nuclear reaction
Variation in DNA is the direct result of which of the following? *
Asexual Reproduction
Crossing Over
Interphase
Somatic Cells
Answer:
crossing over
Explanation:
crossing over allows the cell to have infinite variations
Should be crossing over:)
Sickle-shaped red blood cells result from a mutation in the gene that codes for hemoglobin.
This mutation results in sickle-cell anemia. A partial sequence of bases from a normal
hemoglobin gene and a sequence that results in sickle-cell anemia are shown below.
Normal hemoglobin:
T-G-A-G-G-T-C-T-C-C-T-C
Sickle-cell hemoglobin: T-G-A-G-G-T-C-A-C-C-T-C
What type of mutation is depicted in this sequence?
A Substitution
B Insertion
C Deletion
D Frameshift
Option A
Option B
Option C
Option D
Answer:
Substitution
Explanation:
Substitution is when is a mutation that exchanges one base for another. In this case, the T is an A.
T-G-A-G-G-T-C-T-C-C-T-C
T-G-A-G-G-T-C-A-C-C-T-C
1. List the Biomes seen in the above example. Explain why adaptations are needed for each biome.
a. Biome one-
b. Biome two-01
C. Biome three-[ ]
d. Biome four-[ ]
Answer: i dont understand can u DM me
Explanation:
Both DNA and RNA are made of subunits or building blocks called_______.
Question 1 options:
Nucleotides
Amino Acids
Proteins
Enzymes
after fertilization a single cell divides successfully to form a multicellular structure what happens next in order for this structure to develop tissues and organs to meet the needs of the organism
Answer:
After fertilization, a single cell divides successfully to form a multicellular structure. What happens next in order for this structure to develop tissues and organs to meet the needs of the organism? The cells undergo differentiation into particular body parts.
A multicellular organism develops from a single cell (the zygote) into a collection of many different cell types, organized into tissues and organs. Development involves cell division, body axis formation, tissue and organ development, and cell differentiation (gaining a final cell type identity).
Explanation:
hope this helps...
have a good day
1) A brain cell would be one
a) body cell
b) sex cell
2) An egg cell would be one
a) body cell
b) sex cell
3) A muscle cell would be one
a) body cell
b) sex cell
4) A skin cell would be one
a) body cell
b) sex cell
Help plz
Answer:
1) A brain cell would be one
a) body cell
2) An egg cell would be one
b) sex cell
3) A muscle cell would be one
a) body cell
4) A skin cell would be one
a) body cell
I hope this help :)
Answer:
1) a
2) b
3) a
4) a
Explanation:
What is a chromosome? Why are they important? Please be descriptive in your own words
Help !! I’ll love u forever
According to Chargaff's rules and the chart below-
Approximately what percent cytosine do we expect for E.coli?
A. 50.7
B. 26.0
C. 24.3
D. Impossible to determine
it's 26.0 for E. Coli
Select the correct location on the image.
Which structure fuses to form a diploid zygote during sexual reproduction?
Answer: the top one
Explanation:
Drag and drop the steps of digestion to order them from first to last step.
Saliva rushes into the mouth and mixes with the broken-down food.
The food travels down the esophagus.
The muscles of the stomach churn the food and continue to break it down.
The teeth in the mouth bite off a piece of food. The teeth continue to break the food into smaller pieces.
The broken-down food, called chyme, enters the small intestine.
The remaining food passes into the large intestine. Water is absorbed from the large intestine and the rest of
the material is stored as solid waste until it is excreted from the body.
Answer:
The teeth in the mouth bite off a piece of food.
The teeth continue to break the food into smaller pieces.
Saliva rushes into the mouth and mixes with the broken-down food.
The food travels down the esophagus.
The muscles of the stomach churn the food and continue to break it down.
The broken-down food, called chyme, enters the small intestine.
The remaining food passes into the large intestine. Water is absorbed from the large intestine and the rest of
the material is stored as solid waste until it is excreted from the body.
Explanation:
The language of r and a is what
Answer:
R is a programming language and free software environment for statistical computing and graphics supported by the R Foundation for Statistical Computing. The R language is widely used among statisticians and data miners for developing statistical software and data analysis.
Explanation:
Which statement about these cells is correct?
a.About 20 percent of the cells are dividing.
b. Most of the cells are undergoing meiosis.
c. Most of the cells will never undergo mitosis
d. About 80 percent of the cells are dividing.
About 80 percent of the cells are dividing because of the perfect structure of the cell.
What is cell division?Cell division is the process by which cells multiply that includes nuclear and cytoplasmic division. Meiosis and mitosis are their types.
So we can conclude that about 80 percent of the cells are dividing because of the perfect structure of the cell.
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Which best describes how energy from the sun helps to maintain life on Earth?
Answer:
without the sun we probably be freezing that's why we need the son it keeps us warm and the sun gives use radiation energy which could help us power things.
Explanation:
PLEASE HELP THIS IS TIME SENSITIVE!!!!!!!!!
Answer:
r and k
Explanation:
Answer:
top left and middle 2 go in R category
top right and bottom one go in L category.
Hope this helped! Mark brainliest pleast :3
Explanation:
if I slept next to my Alexa all night, will it damage my brain a lot after doing this for a month?
Answer:
yes xd
Explanation:
Humans affect Earth in many ways. The use of fossil fuels, the clear-cutting of forests, and controlled burns can affect the carbon cycle. Which process can help counteract these human interactions? photosynthesis respiration decomposition transpiration
Answer:
Photosynthesis
Explanation:
Photosynthesis takes in CO2 from the atmosphere and utilizes it to form sugars/oxygen.
The equation: 6CO2+6H2O -> C6H12O6 + O2
Respiration will do the opposite and actually release CO2 into the atmosphere
Decomposition will also release CO2 as a byproduct
Transpiration I don't believe has anything to do with removing or putting CO2 into the atmosphere. It's about water movement!
Answer:
The answer is A) Photosynthesis!
Explanation:
Edge, got a 100
The genetic code is said to be universal. Which of the following lines of evidence would best support this idea?
Data that indicate that the genetic code changes frequently.
Data that are inconclusive about the nature of.
the genetic code.
Data that indicate that some organisms use one or more alternate codes.
Data that indicate that the genetic code is the same in all organisms tested so far.
Answer:
hi here is your answer....
Explanation:
Data that indicate that the genetic code is the same in all organisms tested so far.
becuase,
The genetic code is nearly universal, and the arrangement of the codons in the standard codon table is highly non-random. The three main concepts on the origin and evolution of the code are the stereochemical theory, according to which codon assignments are dictated by physico-chemical affinity between amino acids and the cognate codons (anticodons); the coevolution theory, which posits that the code structure coevolved with amino acid biosynthesis pathways; and the error minimization theory under which selection to minimize the adverse effect of point mutations and translation errors was the principal factor of the code’s evolution.
17. The scientific study of human populations is called
A. ecology
B. demography
C. natural selection.
D. transition.
Answer:
B. Demography
Explanation:
Answer:
B
Explanation:
Demography is the statistical study of populations, especially human beings. Demographic analysis can cover whole societies or groups defined by criteria such as education, nationality, religion, and ethnicity.
Please help me It's over due and I need help.
Ocean acidification is occurring because
A. of agricultural runoff into rivers.
B. the ocean absorb about 25% of the carbon dioxide emitted into the atmosphere by human activities.
C. water changes pH as it warms.
D. overfishing is changing the structure of ecosystems, haring the plankton that regulate the pH of ocean water.
E. acid rain has worsened over the last two decades.
Answer: b
Explanation:
Its b because Ocean acidification is occurring because excess carbon dioxide (CO2) in the atmosphere is being absorbed at the surface of the ocean at an increasing rate. This excess CO2 results in more hydrogen ions, which increases the acidity of the ocean.
Monosaccharides and amino acids are both monomers. These monomers are formed by
hydrolysis. Which statement correctly identifies a difference in the structure of
monosaccharides and amino acids? *
A)Only amino acids contain cytosine, adenine, guanine, and thymine,
B)Only amino acids join together with peptide bonds to form proteins.
C)Only monosaccharides contain carbon and hydrogen.
Answer:
B: only amino acids join together with peptide bonds to form proteins.
Amino acids are glycine and leucine, which are composed of carbon, hydrogen, oxygen, and nitrogen. Carbon, hydrogen, and oxygen make up carbohydrates, which can be either little or big molecules, hence option B is correct.
What is the difference between monosaccharides and amino acids?
The building blocks that makeup proteins are polymeric molecules made up of a chain of amino acids. The biological role of galactose, mannose, fructose and ribose is also significant.
The most prevalent monosaccharide in living things is glucose, which also serves as a structural support system and an enzyme to catalyze chemical processes.
Therefore, the amino group of the additional amino acid creates a peptide bond with the polymer's carboxylic acid group, hence option B is correct.
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Vasodilation and vasoconstriction are processes that help the body regulate:
A) germs.
B) temperature.
C) bacteria
D) hormones.
Answer:
B
Explanation:
temperature
Answer:
B
Explanation:
100% edge 2022