Answer:
The correct answer is - change in DNA is called mutation which is essential for evolution including speciation.
Explanation:
A mutation is a change in the genetic or hereditary material which is DNA. A mutation is the main reason behind the evolution of the organism or species and speciation can be led by evolution, which takes place by results in the accumulation of many small changes in DNA or genetic changes in a population over a long period of time.
Mutations that change in DNA are required for the evolution process they are the raw material of genetic variation. without changes in hereditary material, there is no speciation or evolution possible.
Which of the following steps stops the feedback
mechanism that begins when a person's body
temperature falls below 37.C?
O A. The blood vessels slow blood flow to the
skin.
B. The brain senses that the body temperature
has reached 37°C.
C. The muscles begin to contract rapidly.
O D. The person begins to sweat.
Answer:
dont know sry
Explanation:
??????????????
Answer: B
Explanation: The brain senses that the body temperature has reached 37°C
The population of peppered moths have changed over time. The population has changed from primarily light colored to dark colored moths. This is an example of...
a
Mimicry
b
Natural Selection
c
Selective Breeding
d
Camouflage
Answer: b
Explanation:
natural selection occurs when something adapted to the environment to give them an advantage or to survive
What is the final result of genetic drift in populations of
Answer: Genetic drift may result in the loss of some alleles (including beneficial ones) and the fixation, or rise to 100% frequency, of other alleles.Once it begins, genetic drift will continue until the involved allele is either lost by a population or is the only allele present at a particular gene locus within a population. ... Genetic drift can result in the loss of rare alleles, and can decrease the size of the gene pool.
Explanation:
Answer:
decrease the genetic diversity of a population.
Explanation:
Genetic drift describes random fluctuations in the numbers of gene variants in a population. Genetic drift takes place when the occurrence of variant forms of a gene, called alleles, increases and decreases by chance over time.
Genetic drift can cause a new population to be genetically distinct from its original population, which has led to the hypothesis that genetic drift plays a role in the evolution of new species.
GIVING BRAINLIEST!!!!
Name the types of adaptation that animals and plants can have
Answer:
poison, thorns, sharp teeth
Explanation:
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What property of silver may discourage people from buying silver jewelry?
A. it can’t float
B. it’s not green
C. it can tarnish
D. it’s not transparent
Answer: C
Explanation: Because if silver is tarnished it will lose its luster, thus making it not attractive.
7. During DNA replication, a complementary strand of DNA is made for each original DNA strand. Thus,
if a portion of the original strand is CAGGTTACG, then the new strand will be
a. CAGGTTACG.
c. GTCCAATGC.
b. GTCCTTAGC.
d. GTCCTTACG.
Answer:
i think its b i took the test but i forgot the answer
Explanation:
Why is it important for DNA replication to be a
highly regulated process?
Answer:
Here you go
Explanation:
DNA replication is regulated to ensure all chromosomes replicate once and only once per cell cycle.Cell cycle regulation by protein phosphorylation ensures that pre-RC assembly can only occur in G1 phase, whereas helicase activation and loading can only occur in S phase.
I Now Give Up On Life :) Don't Try And Stop Me
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WILL GIVE BRAINLIEST
Flatworms, ferns and humans are related, and they all undergo the same process to make their energy molecules. This process is ________
Answer:
Cellular respiration
Explanation:
Have a great day <3
Why should the general public be concerned about the survival of honeybees
Answer: honeybees are one of the most important pollinators in the world, we do have others but without bees many crops, and plants will die and that will result in animals dying.
Explanation:
Compared to freshwater fishes, marine fishes: drink seawater and produce a large volume of urine. do not drink seawater in an effort to conserve as much water as possible. produce a large volume of dilute urine in an effort to rid their bodies of excess water. tend to gain water by osmosis since their internal salt concentration is higher than that of seawater. tend to lose water by osmosis since their internal salt concentration is lower than that of seawater.
Answer:
The correct answer is - tend to lose water by osmosis since their internal salt concentration is lower than that of seawater.
Explanation:
In freshwater fishes, the body of fishes has a higher salt concentration inside their body than the surrounding water, water enters through the osmosis process. Without any active regulation of this process, fishes would swell and get bigger and bigger. They have specialized cells called chloride cells in gills to take ions from water as they do not have kidneys.
In contrast, the marine fishes have a lower salt concentration in their body than surrounding water of sea or ocean and they lose water continuously and to compensate for this they need to drink water regularly.
can someone please help me
3. Please rank the following topics from most to least interesting: (Fire Ecology - (FE), Noise Pollution and Mitigation Strategies (NP), College Majors and Careers in the Environment (CC), Great Pacific Garbage Patch (GP), EcoTourism
1.
2.
3.
4.
5.
6.
What is the difference between a) prokaryote and eukaryote; b) autotroph and heterotroph; c) unicellular and multicellular?
Answer:
Explanation:
a) eukaryotes have membrane bound organelles like nuclei while prokaryotes don't
b) autotrophs = producers that can make their own food while heterotrophs consume producers or other consumers
c) Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function
HELP!!
A mother with the genotype AA displays the dominant version of the trait. Her husband displays the recessive version of the trait. Their child displays the dominant version of the trait. How is this possible?
A. The mother gave a recessive allele to their child.
B. The father gave two recessive alleles to their child.
C. The mother gave the dominant allele to their child.
D. The father gave the dominant allele to their child
Answer: C. The mother gave the dominant allele to their child.
Choose the best answer.
Crossing over is important because it creates
A)gene splicing
B)new breed
C)genetic diversity
D)zygote
E)double helix
A wealthy elderly couple dies together in an accident. A man comes forward, claiming that he is their long lost son and is entitled to their fortune. The couple were of blood types AB and O. The man has type O blood. Could he be the heir to the fortune?
Group of answer choices
No, you cannot get type O from crossing type AB with type O
Yes, you can get type O from crossing type AB with type O
. ___________________ is the process of plants releasing oxygen into the environment?
Answer:
photosynthesis
Explanation:
can i get brainlists
When a plant doesn't have enough water, it will wilt and _____ .
A) the amount of carbon dioxide will increase
B) the amount of carbon dioxide will decrease.
C) the amount of oxygen will increase.
D) the rate of photosynthesis will increase
Answer:
The amount of Carbon Dioxide will increase.
Explanation:
Answer:
When a plant doesn't have enough water, it will wilt and the amount of carbon dioxide will decrease.
Explanation:
You're welcome!
HURRY IT’S TIMED I’LL GIVE YOU BRAINLIEST
Which illustrates the relationship between cooling magma and mineral formation?
A. Darwins theory
B. Theory of relativity
C. Bowen‘s reaction series
D. Newtons principle of physics
Answer: C. Bowen‘s reaction series
Explanation:
The different forms of a gene are called *
O points
gametes
alleles
genes
zygotes
Answer:
An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent.
Explanation:
A scientist studying the effects of radiation on DNA performs an experiment in which she exposes a sequence of nitrogen bases found in DNA to radiation. The DNA before and after the radiation is shown below.
Use the evidence to determine whether a mutation has occurred, and if so, interpret that mutation in the answer sheet provided
Before Exposure: ATCGTCA; After Exposure: ATTCGTCA
A. No mutation has occurred to the DNA sequence.
B. A nitrogen base has been deleted from the DNA molecule.
C. A nitrogen base has replaced another nitrogen base in the DNA molecule.
D. A nitrogen base has been added to the DNA molecule.
Answer:
D. A nitrogen base has been added to the DNA molecule.
Explanation:
You can see that the sequence for the nitrogen bases are in the exact same order after the exposure, this rules out A. You can count how many bases there are, 7 before and 8 after so it cannot be B. Lastly, given that they are in the same order as were before and that a base has been added, you can see that no bases were replaced (so not C) and that D is your answer.
At which classification level could two organisms belonging to the same group have the LEAST
in common?
class
family
order
species
Explanation:
Species but dot take my word on it is was an educated guess
Answer:
Explanation:
Species
kingdom is further split into phylum or division, class, order, family, genus, and species, which is the smallest group.
The science of classifying organisms is called taxonomy and the groups making up the classification hierarchy are called taxa.
Summer happens when the Earth is closest to the Sun.
True or False
!!!HELP QUICK!!!
Answer: False
Explanation:
Summer happens when the Earth is far away from the Sum
An individual who is establishing a strategy to use in order to accomplish a goal is demonstrating which phase of the self-regulation
cycle?
O self-reflection
O performance
O forethought
O goal accomplishment
Answer:
Forethought
Explanation: Basically means planning ahead of time in order to know what to do when you are faced in a situation or event that will happen in the future
Answer:
The answer is C. Forethought
Explanation:
Unicellular organisms are able to survive on their own because they have structures that have what important characteristic?
Answer:
A unicellular organisms depends upon its one cell for all the functions and survival of the organism. It has all the important characteristics that is necessary for its survival.
Explanation:
A unicellular organism is one which contains only one cell. And so all the life processes occurs in that one particular cell in an unicellular organism. A n unicellular organism is also called as the single cell organism.
The unicellular organisms uses cilia as well as the flagella to achieve locomotion by creating currents around and move about places. The take up nutrients by diffusion process. They reproduce asexually and produce their offspring.
What should I take single science biology, or all 3 (physics, biology, chemistry) for GCSE? Plez i don't know what to decide on... I am so stuck. I don't like blood and stuff related to the like. However, if I take A level biology I have a better chance of getting to uni and I like biology but I'm pretty much an air head. Can you give me any answers? Plz
Answer:
id say all
Explanation:
What are exons and introns and how are they dealt with in the cell?
Answer:
Exons are coding sections of an RNA transcript, or the DNA encoding it, that are translated into protein. Exons can be separated by intervening sections of DNA that do not code for proteins, known as introns.
Explanation:
What is the casparian strip located?
Answer:
on the front of the caprisun duh
Explanation:
True or false
Prokaryotic cells can’t replicate DNA, because they do NOT possess nuclei.
Answer:
False
Explanation:
Prokaryotes do have their genomic DNA concentrated and localized to a small area within the cell (nucleoid region). So it's not entirely accurate to say that prokaryotes don't have a nucleus.
Answer:
true
Explanation:
prokaryotics are cells without nucleus