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Natural selection is the term created by Chales Darwin to compose a theory of biological evolution. According to this term, living beings that have characteristics favorable to their survival, in relation to the environment in which they live, are more likely to survive and pass these characteristics on to their descendants, while those that do not have these characteristics are more likely to die. .
An example of this can be seen in a population of lizards that live in environments with a lot of grass. According to natural selection, green colored lizards would have better advantages of surviving because they would be camouflaged in the grass and would not be seen by predators, unlike red lizards, which would be easily identified and captured by predators. therefore, the population of red lizards would decrease until it ceased to exist, while the population and green lizards would survive and generate other green lizards.
do acquired characteristics show common ancestors?
Answer:
yes they do
Explanation:
Acquired characteristics, by definition, are characteristics that are gained by an organism after birth as a result of external influences or the organism's own activities which change its structure or function and cannot be inherited.
Which feature of deforestation has the greatest effect on the atmosphere?
extinction of forest animal species
increased risk of flooding
reduction of photosynthesis
soil erosion
Answer:
I'd say reduction of photosynthesis
Explanation:
This is because the atmosphere is mainly made up of gases and photosynthesis involves some certain gas exchange and evolution.
Remember there's room for correcting me since this answer is based on my thinking
All organisms get energy from their environment. When a shark consumes food,
the remora fist collects the food scraps by swimming underneath the shark. What type of
relationship is demonstrated by the shark and the remora fish?
a. Commensalism
b. Mutualism
c. Neutralism
d. Parasitism
In this lab, you will simulate birds with three different beaks. After watching the birds feed, you will remove fruit to simulate a change in the environment. What question are you answering by doing this observation?
Answer:
How does a change in food resources model the type of beaks in birds?
Explanation:
We know that phenotype results from the interaction of the genotype and the environment. Any change in the environment produces a change in the phenotype of the animals. By performing this experiment, we probably want to know the influence of the environment on animals. In this particular example, we change a source of food by removing fruit (which would be acting as the independent variable of the experiment) and evaluate its effects on the birds´ beak (the dependent variable). Which of the three different beaks increases their frequencies by removing the fruit, and which one decreases its frequency.
So here, the absence of fruit is acting as a selective ecological pressure on birds. It is modeling birds´ beaks and adapting animals to feed on some other resource.
Change in food resources ---> Selective ecological pressure.Change in beaks frequency----> Adaptative response.Some students take care of a vegetable garden. When it is time to plant in the spring, the students leave part of the garden empty in order to observe ecological succession. Which of these will most likely occur first? *
3 points
Development of topsoil
Growth of weeds and grasses
Growth of trees and shrubs
Development of a stream
The sun's energy is generated in its
A. core.
B. convection zone.
C. corona.
D. radiative zone.
Answer:
A
Explanation:
Answer:
The suns energy comes from its core
Explanation:
The image on the left shows a normal red blood cell, and the image on the right shows a cell that has been put into a new solution. The circles represent the salt in the solutions.
Which statement describes the motion of the water molecules in this situation?
The water molecules move by active transport into the cell from low water concentration to high water concentration.
The water molecules move by osmosis into the cell from low water concentration to high water concentration.
The water molecules move by osmosis into the cell from high water concentration to low water concentration.
The water molecules move by active transport into the cell from high water concentration to low water concentration.
The water molecules move by osmosis into the cell from high water concentration to low water concentration.
Si se aplica a un muelle una fuerza de 30N provocamos que se alarguen 0.2m . Calcular la constante del resorte. Y que fuerza que habra que aplicarle para que se alargue 0.45m
Answer:
I. Constante de resorte, k = 150 Nm.
II. Fuerza = 67.5 Newton.
Explanation:
Dados los siguientes datos;
Fuerza, F = 30 N
Extensión, e = 0.2 m
Para encontrar la constante del resorte;
Fuerza = constante de resorte * extensión
F = ke
30 = k * 0.2
Constante de resorte, k = 30 / 0.2
Constante de resorte, k = 150 Nm
A continuación, para encontrar la fuerza para una extensión de 0,45 m;
Fuerza = 150 * 0.45
Fuerza = 67.5 Newton.
OMG GUY HELP MEEEEE Write the answers to these questions, Denise tested a plant to see if it would grow toward light. She placed a seedling next to a sunny window. What evidence will she most likely observe after a week that supports her claim? Explain how the evidence supports her claim. Make a claim about how Jorge's results will compare to Denise's results. Explain your reasoning
Explanation:
After a week the plant will have grown out and toward the window. the plant will not be standing straight up, so it will be laying down toward the window. Because the plant is leaning toward the window, where the sun shines in, it proves that plants grow toward sunlight.
Guys pls help me!!!!!!!!!!!
Which will cool down faster overnight, the water in the pool or the air above the pool? How do you know
Please help
Explain how the oxidation of pyruvate links glycolysis with the citric acid cycle.
Pyruvate oxidation is the step that connects glycolysis to the citric acid cycle through the generation of acetyl-CoA.
The first thing that happens after glycolysis is that pyruvic acid passes from the cytoplasm to the mitochondrial matrix, crossing the membranes.
Pyruvic acid undergoes oxidation, a CO2 molecule is released and an acyl group (CH3-CO) is formed.
In this reaction, one molecule of NADH is formed, as in glycolysis the final product was two molecules of pyruvic acid, now two of NADH will be formed for each molecule of glucose.
Each acyl group binds to a Coenzyme A and acetyl Coenzyme A is formed, at this time the citric acid cycle begins.
Acetyl-CoA is degraded in the citric acid cycle to produce energy when cellular needs demand it.
Therefore, we can conclude that glycolysis achieves from the degradation of glucose to obtain 2 molecules of pyruvate, which is a previous step to give acetyl-Coa, which is the starting molecule of the citric acid cycle.
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Describe how ballet dancers endure the pain of the equivalent of three elephants standing on their toes.
Answer:
They trudge through it.
Explanation:
They also have special shoes to make it more comfortable.
Answer:
Hope this helps
Explanation:
The shoes are also equipped with a reinforced insole, called the shank. Along with the box, the shank provides support for the dancers body weight as it supports the arch of dancers foot, allowing them to stand upright on their toes.
9. Base your answer to the following question on the diagram below and 10 points
on your knowledge of biology. The diagram represents a single-celled
organism, such as an amoeba, undergoing the changes shown. *
с
Process 1
Cell contains
1 full set of
single
chromosomes
Cell contains
1 full set of
double
chromosomes
Cell contains
1 full set of
single
chromosomes
Process 2
Cell contains
1 full set of
single
chromosomes
D
B
A
Process 1 and process 2 are directly involved in
OA) melotic cell division
B) mitotic cell division
C) fertilization
D) recombination
Answer:
I dont no
Explanation:
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Wala ako ng alam Hahahahahhahhahahahahsjxjdh
There are two types of cells in the body: regular cells that make up all the organs of the body are known as ______________ cells and the other which contain half the amount of our chromosomes in order to provide offspring are known as _______________
Answer: There are two types of cells in the body: regular cells that make up all the organs of the body are known as __somatic__ cells and the other which contain half the amount of our chromosomes in order to provide offspring are known as __sex cells___.
Explanation:
Somatic cells are body cells. They are formed during the process of mitosis. Sex cells are for reproduction, formed during the process of meiosis.
Hope this helps!
Answer:
Somatic cells and Sex cells
Explanation:
Hope this helps
What process is typical of cancer?
A)replacement of damaged cells
B)DNA replication
C)cellular death
D)uncontrolled cell division
Answer:
D: uncontrolled cell division
Explanation:
The cells start dividing rapidly and created masses, or tumors, which is called cancer
Uncontrolled cell division is the process typical of cancer.
What is cancer?It is a condition in which cells begin to divide uncontrollably.
What are the types of cancer?There are generally two types of cancer:
Benign: grow slowly and not spread.Malignant: have the ability to spread throughout the body, grow quickly, infiltrate neighboring normal tissues, and do great damage.What is contact inhibition?Contact inhibition is the process whereby a normal cell's unchecked proliferation is inhibited as a result of its contact with neighboring cells.
What happens when contact inhibition is lost?When this property is lost the cells undergo uncontrolled division and they form cancerous growth.
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LIFE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! WHAT IS IT!!!!!!!!!!!!!!!!!!!!!!!!!!!! WHAT DOES IT MEAN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer: To be a pog champ
A small baby snake grows into a larger adult snake. Choose the explanation that best explains why a baby snake grows into a larger adult snake.
A. The baby snake’s cells divide.
B. The baby snake’s cells grow into longer cells.
C. The baby snake’s cells grow into much larger cells.
D.The baby snake’s body parts stretch out and get longer.
E.The food the baby snake eats makes it grow big and strong.
F.The baby snake’s cells differentiate into different types of cells.
Answer:
A. The baby snake's cells divide.
Explanation:
Just like all multicellular organisms, the snake grows through its cells growing and then dividing into more cells.
The baby snake grows into an adult one because of cell division; the option A that is saying this is the correct regarding the growth of the snake into the big snake
What is the result of the cell division?Cell division is the process by which the cell divides into either haploid or genetically identical cells. The snake grows in size because of cell division.
This is the result of the mitosis, in which the parent cell present in the small snake divides to produce many cells, and the increase is seen. In mitosis, the cell enters the prophase, metaphase, anaphase, and telophase, and finally, at cytokinesis, the cell divides into two.
In the interphase of the cell cycle, before the cell division phase, the cell duplicates its genetic material. The cell differentiation does not increase the cell number, but the cell division increases the cell number and makes the snake grow bigger.
Hence, the correct answer is "baby snake cells divide," which is in Option A.
Learn more about cell division here.
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What is one difference between oogenesis and spermatogenesis?
A-Oogenesis occurs in females, but spermatogenesis occurs in males.
B-Oogenesis starts at puberty, but spermatogenesis starts before birth.
C-Oogenesis involves mitosis, but spermatogenesis involves meiosis.
D-Oogenesis involves differentiation, but spermatogenesis does not involve any differentiation.
Answer:
The answer that you want to pick is
A-Oogenesis occurs in females, but spermatogenesis occurs in males.
Explanation:
Think about how babies are made you need a male and a female.
You are a genetic counselor. A couple comes to you for advice. The female is eight weeks pregnant with their first child. Both are Ashkenazi Jews, a segment of the population in which Gaucher disease is relatively common. Gaucher disease is a condition that can range from mild and treatable symptoms to severe, debilitating problems. The disease is an autosomal recessive pattern. Which of the following statements is true?
The child will likely have Gaucher disease if she has inherited recessive alleles from each parent.
The child will likely have Gaucher disease if she has inherited one dominant allele from her father.
The child will only have Gaucher disease if she has inherited both dominant alleles from her parents.
The child will only have Gaucher disease if she has received one recessive allele from her mother.
PLEASE HELP ANSWER THESE
1. Which of the following pairs of chemicals are understood to be the products of photosynthesis and the reactants in cellular respiration?
A. C6H12O6 + 6H2O
B. 6CO2+ H2O
C. C6H12O6 + 6O2
D. 6CO2 + 6H2O
2. Which of the following statements describes a process that occurs during photosynthesis but not during cellular respiration?
A. ATP is produced that stores energy. B. Chemical energy is converted to light energy.
C. Reactions occur in the mitochondria of the cell. D.Light energy is converted to chemical energy.
3. If we compare photosynthesis and cellular respiration in terms of energy conversions involved, we observe that in–
A. photosynthesis, carbon dioxide is used to produce energy.
B. photosynthesis, energy is used to produce oxygen.
C. cellular respiration, carbon dioxide is used to produce energy.
D. cellular respiration, energy is used to produce oxygen.
4. Which of the following pairs of chemicals are understood to be the chemical reactants in photosynthesis and the products of cellular respiration?
A. Sugar and water B. Carbon dioxide and oxygen
C. Sugar and oxygen D. Carbon dioxide and water
5. What is the relationship between photosynthesis and cellular respiration?
A. The reactants of cellular respiration and photosynthesis are the same but their products are different.
B. Cellular respiration is one of the steps in the process of photosynthesis.
C. Photosynthesis is one of the steps in the process of cellular respiration.
D. The reactants of cellular respiration are the products of photosynthesis and the reactants of photosynthesis are the products of cellular respiration.
Explanation:
1. C
2. D
3. B
4. D
5. D
hope it helps. :)
Passive transport is called passive because it occurs WITHOUT
a. the cell membrane
b. light
c. the cell wall
d. energy
Answer:
The correct answer is D) energy
Explanation:
Hope this helped Mark BRAINLIEST!!
Which is the largest bone in the body, found in the hip and groin area?
Answer:femur bone
Explanation:
Answer:
The femur
Explanation:
hope this is helpful :) have a nice day
The football shaped structure made of microtubules, which helps move the chromsomes during cell division is called the
Do you agree or disagree with the statement? Justify your answer
least TWO reasons.
Answer:what statement
Explanation:
suggest the name of an enzyme used by maggots to digest bacteria
Answer:
the name of the enzymes that maggots use is "proteolytic enzymes"
Explanation:
Iuteus. In addition to the antibacterial substances, maggots also posses diverse proteolytic enzymes, which are capable of digesting Bacteria
Identify both the cellular component and the location of the component that is responsible for producing the luciferase protein from mRNAs transcribed in the plasmid-containing T lymphocytes.
Answer: hello your question is incomplete attached below is the missing part
answer
Ribosomes CodonsExplanation:
The cellular component responsible for is:
Ribosomes; which are either free or bounded to rough endoplasmic reticulum
The location of the component that is responsible for producing the luciferase is determined by Codons hence the component is located in the Codons. also If the codon is AUG, the anticodon will be UAC
The diagram below shows part of the process of DNA transcription. Which
mRNA base will go in location 3
DNA
TGTGTGAL
ACACAC123
-
mRNA
O A. Cytosine
OB. Thymine
O C. Uracil
D. Adenine
SUBMIT
Answer: The correct answer is D. Adenine
Explanation:
There are two types of nucleic acid ribonucleic aid and deoxyribonucleic acid. There are four types of nucleotides which make the DNA and these are adenine, guanine, thymine, and cytosine.
Adenine and thymine make complementary base pairing with each other and guanine and cytosine make complementary base pairing with each other in DNA.
In RNA against adenine, uracil comes and against thymine adenine comes. Therefore as at location 2 thymine is present in DNA so in RNA against it adenine will come.
hope this helps
In DNA transcription, Adenine mRNA base will go in location 3 DNA. Therefore, option (D) is correct.
What do you mean by DNA transcription?The process by which information in a DNA strand is copied into a new molecule of messenger RNA (mRNA) is known as transcription. DNA safely and stably stores genetic material as a reference, or template, in the nuclei of cells.
Because it is the primary point at which the cell regulates which proteins are to be produced and at what rate, the initiation of transcription is an especially important step in gene expression.
The process by which RNA polymerase rewrites the genetic information in DNA into messenger RNA (mRNA) is known as DNA transcription. This mRNA then, at that point, leaves the core, where it goes about as the reason for the interpretation of DNA.
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Which organelle is responsible for the construction of sugars during the process of photosynthesis?
Answer:
chloroplast !
Explanation:
Given RRYY x Rryy, what will the parents be? (no links please)
I'm guessing the genotypes given (RRYY x Rryy) are the offspring (if this isn't the case this answer may be wrong)
RRYY has both dominant alleles. So we can safely say that the parents are both RRYY.
For Rryy :
Rr is heterozygous (the alleles are not the same), so the parents could be:
RR x rr
RR x Rr
Rr x Rr
(if you do a small punnet square, you can double check these!)
Since yy has both recessive alleles, the parent is yy as well.