Answer:
A
Explanation:
The condition that is necessary for the natural selection to occur is that each individual organism that is born must survive. The correct option is B.
What is natural selection?Natural selection is the process by which living organism populations adapt and change.
Individuals in a population are naturally variable, which means they differ in some ways. This variation indicates that some people have traits that are better suited to their environment than others.
Natural selection, Darwin proposed, is a mechanism for evolution in which heritable traits that help organisms survive and reproduce become more common in a population over time.
The phrase "survival of the fittest" refers to the process of natural selection, a mechanism that drives evolutionary change.
The condition for natural selection to occur is that each individual organism that is born must survive.
Thus, the correct option is B.
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ill give brainliest JUST HELP ME PLEASE its due tmr, please be accurate
Answer:
Interphase - B,J,
Prophase - G,E
Metaphase - C,F
Anaphase - I,D
Telophase - A,H
Explanation:
I think this is correct.
Remember:
Interphase - the DNA is all clumped up
Prophase - the DNA begins to unravel and float around
Metaphase - M for middle; they line up in the middle
Anaphase - The begin to split and be pulled apart
Telophase - They are at their opposite ends, but not yet their own cells
Margaret has detached earlobes (a) , which is a recessive trait. If she wanted ALL of her children to have attached ears (A), what type of man would she need to marry in order to give her the best chances?
A. A man with the genotype AA
B. A man with the genotype aa
C. A man with lobed ears like hers
D. A man with the genotype Aa
Margaret can have all her children with attached earlobes only if she marry a man with AA dominant genotype.
As given,
Margaret has detached earlobes (a) which is a recessive trait If she wanted all of her children to have attached ears (A) if she have to marry a man with the dominant trait
Punnett' square:
A A
a Aa Aa
a Aa Aa
[Aa] are the genotype with attached earlobes [dominant genotype]
Therefore, Margaret can have all her children with attached earlobes only if she marry a man with AA dominant genotype.
To know more about dominant and recessive trait.
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a) Name one producer.
b) Name one primary consumer.
c) Name one secondary consumer.
d) Name one top carnivore.
e) How is energy transferred from one trophic level to the next?
f) Which trophic level has both the greatest amount of energy and the greatest amount of
biomass?
g) Suppose a large volcanic eruption occurred and a thick cloud of ash completely blocked
sunlight from reaching this prairie ecosystem for several months. Explain how the transfer of
energy and the transfer of matter would be affected by this event.
L
Answer:
Explanation:
just search what a primary consumer is
Someone plz help
Giving brainliest
Answer:
What are the instructions? Let me know so I can help in the comments :)
Please help me number 21 need ASAP ....
Answer:
Adenine, Guanine, Cytosine, and Uracil.
Explanation:
Can some one help me on 4-5 I need the help plzzzzz
Answer:
What does the fox say?!?!?!?!?!?!?
Explanation:
NI NI NI NI NIN IN IN IN IN INININININININININNINI
please solve question 5
Why does DNA have to relocate
Answer:
chromosomes are made up of a DNA protein complex called chromatin that is organized into subunits called nuclesomes...
Which molecule can be classified as saturated or unsaturated? *
a) carbohydrate
b) protein
c) lipid
d) nucleic acid
Answer:be careful for anonumas1
Explanation:
What is a gene? What is a gene? What is a gene?
Answer:
Your answer should be D. A section of DNA that codes for a specific trait.
Answer: D
Explanation: Just took the test and got it correct.
help help pls will mark brainliest if i can
brain-nucleus
skin- cell membrane
stomach- mitochondria
blood- cytoplasm
If an animal has both male and female
parts, what is it called?
A. hermaphrodite
B. autotroph
C. two species
D. parasite
Answer:
option A is correct answer hope it helps
IS ANYBODY ALIVE!!! I NEED HELP COMMENT ON THIS IF YOU WANT TO KNOW THE QUESTION. I WILL TAKE ALL HELP I CAN GET 2 ANSWERS BUT I CAN TAKE MORE ANSWERS IN THE COMMENTS BUT I NEED ONE REALLY GOOD ANSWER. SOMEBODY PLEASE RESPOND AND HELP ME!!
YESSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
Answer: yes i am alive
Explanation: I am breathing
Balanced forces do not result in any change in motion. forces: forces applied to an object in opposite directions that are not equal in size. Unbalanced forces result in a change in motion. friction: the force that opposes the motion or tendency toward motion of two objects that are in contact
What catastrophic event occurred in
California? What did officials learn from
the event?
Answer: Wildfires and from the locals!!
1. A mixture is a blend of two or more substances that have NOT
A. combined chemically
B. dissolved
C. been mixed together
Please answer as soon as possible !!
Answer:
A. combined chemically
Explanation:
Need help! Would it be asexual or sexual
Answer: asexual
Explanation:
Describe the structure of a virus.
Answer:
All viruses contain nucleic acid, either DNA or RNA (but not both), and a protein coat, which encases the nucleic acid. Some viruses are also enclosed by an envelope of fat and protein molecules. In its infective form, outside the cell, a virus particle is called a virion.
Explanation:
cloning is more controversial than cloning because it involves copying an entire organism
A female heterozygous for dark hair and freckles married a male also heterozygous for dark hair and freckles. What is the possibility of having offspring with no freckles and light hair?
•8/16
•3/16
•9/16
•1/16
Answer: I would say 3/16 but then again im not too sure you may want to wait until a second answer arrives :D
1. Do you think it is fair that Watson and Crick were credited with the discovery when so many other scientists were involved? Why or why not? Think about your opinion and then back it up with at least one fact.
Answer:
No.
Explanation:
I don't think it is fair that Watson and Crick were credited with the discovery when so many other scientists were involved because all other scientists also contributed in the work and work harder for it so the credit must be given to all scientists. If the credit will not given to other scientists so it is an unfair act so my opinion is against the credit given to Watson and Crick.
A train car is to train as a __ is to a polymer.
a. polymerization.
b. monomer
c. polypeptide.
d. protein.
Answer:
Answer is B monomer as multiple monomers makes up polymers
help please asap...
2 pagessss
will mark brainliest if right
Answer:
cell tissue organ organ syustem organism
iron is required so that red blood cells...
then from top down
larger than
smaller than
larger than
larger than
smaller than
the last one is the 3rd from the top the heart isn't part of the respiratory system but does function with it
I almost said the last one but boy you need to read the question properly as digestive system is slipped in there which the ovaries and testes are not part of
Explanation:
Sacculina carcini is a barnacle that attaches to the underside of the green crab. The barnacle finds a hole in the
green crab's exoskeleton, then uses microscopic hairs to feed on nutrients from the green crab's blood. The barnacle also lays its eggs in the green crab reproductive system, which sterilizes the green crab.
Which term describes the role of S. carcini in this relationship?
a.prey
b.host
c.parasite
d.predator
pls help!!
Answer:
c. parasite
Explanation:
the barnacle benefits from the host while the host is harmed from the barnacle
Answer:
c the parasite <3
Explanation:
NEED ANSWER
WILL GIVE BRAIINLIEST
Tay Sachs disease is an autosomal recessive disorder involving the hexoaminidase gene. What type of mutation occurs in this gene?
Tay-Sachs disease is caused by mutations in the HEXA gene and inheritance is autosomal recessive . The HEXA gene gives the body instructions to make part of the beta-hexosaminidase A enzyme, which is needed to break down a substance called GM2 ganglioside.
i hope this helped! please mark me as brainliest and 5 stars >:)
Answer:
Frameshift mutation
Explanation:
A frameshift mutation is a genetic mutation caused by insertions or deletions that shift the whole sequence.
how do you abbreaviate adenosine triphosphate
Answer:
ATP
Explanation:
The description of a trait through gene expression (long hair, black fur, short tail) is called an organism's _______________.
Answer:
Phenotype.
This is what is expressed on the "outside" of the organism
Which graph represents selection that may lead to reduced variation in a population? A graph has trait value on the horizontal axis and population of individuals on the vertical axis. The original population and population after selection have similar curves, but the original population peaks before the population after selection. A graph has trait value on the horizontal axis and population of individuals on the vertical axis. The population after selection increases, decreases, increases, and then decreases again. The original population increases at the point that the original population drops. A graph has trait value on the horizontal axis and population of individuals on the vertical axis. The original population peaks at the same time as the population after selection but the population after selection peaks higher and at a more rapid speed. A graph has trait value on the horizontal axis and proportion of individuals on the vertical axis. The original population and population after selection have similar curves but the original population is slightly higher at all points. Mark this and return
Answer: B
Explanation:
Answer:
Graph B
Explanation:
Aerobic respiration occurs in the _____ of cells. It can transform 1 glucose into _____ ATPs when _____ is available
Answer:
Aerobic respiration occurs in the mitochondria of cells. It can transform 1 glucose into 38 ATPs when oxygen is available
Explanation:
How does the DNA sequence in a normal hemoglobin gene compare to a sickle cell hemoglobin gene?
ASAP
Answer:A person with normal hemoglobin has inherited one allele for normal hemoglobin from each parent and so has the genotype Hb A/Hb A. In contrast, a person who has sickle disease has inherited one sickle-cell allele from each parent and has the genotype Hb S/Hb S.
Explanation:
The DNA sequence in a normal hemoglobin gene is different from the hemoglobin gene of sickle cell due to a change in nucleotide base from A to T.
What is Sickle cell anemia?Sickle cell anemia is a group of disorders which cause the red blood cells (RBCs) to become misshapen and break down. It is an inherited group of disorders, in which the red blood cells contort into a sickle shaped cell. The cells die early due to this disorder, leaving a shortage of healthy red blood cells in the blood and can block the blood flow causing pain and crisis.
Symptoms of sickle cell anemia include infections, pain and fatigue.
Genetic studies have shown that the base sequence in the normal hemoglobin (HbA) and the sickle cell hemoglobin (HbS) differs at only a single nucleotide position including a change from an A to a T nucleotide base. This change in nucleotide to one codon results in a single amino acid change in the hemoglobin.
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Why is DNA locked in the nucleus of the cell ?
Answer:
Inside the nucleus lies the blueprint that dictates everything a cell will do and all of the products it will make. This information is stored within DNA. The nucleus sends “commands” to the cell via molecular messengers that translate the information from DNA.
Explanation: