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Temka [501]
3 years ago
11

In order for biological evolution to occur, the environment would have to change drastically. True False

Biology
2 answers:
Arada [10]3 years ago
5 0

the answer to this question would be false

Nadya [2.5K]3 years ago
3 0

Answer: False

Explanation:

A biological evolution can be define as the change in the inherited traits in the living beings over successive generation in the population of the organisms.  The surrounding environment of the organisms need not to be changed drastically, this is because of the fact that minor changes such as mutations due to radiations and carcinogenic products can also likely to bring changes in the genetic make up of the organisms.

On the basis of the above explanation, the given statement is false.

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Which statement about the starch debranching enzyme is correct?
Roman55 [17]

Answer:

B) If two non functional copies are inherited, the pea will be wrinkeld.

Explanation:

The gene for starch debranching is one of the genes that regulate more than one genetic trait. The starch debranching gene also regulates the seed shape in peas. The gene has two alleles. The allele B is completely dominant over allele "b" with respect to seed shape. Both homozygous and heterozygous dominant genotypes (BB and Bb) produce smooth seeds while homozygous recessive genotype (bb) imparts wrinkled shape to the seeds.

8 0
3 years ago
Predict what the calf produced in a union between each of these parents might look like. Explain your answers.
Charra [1.4K]
We know that purebred means that the organism contains the same alleles for the trait and hybrid means that it contains two different alleles for the trait. Dominant means that it will be shown in a hybrid and a purebred, but recessive traits will only be shown in purebred recessive organisms.

a) The offspring of a purebred white (recessive) cow and a purebred brown (dominant) bull, would be all hybrid brown (dominant). This is because as I stated above, dominant traits are shown when the offspring has both dominant and recessive alleles for the same trait.

b) The offspring of a purebred brown (dominant) cow and a purebred brown (dominant) bull would all be purebred brown (dominant). This is because if both of the parents have only alleles that code for brown color, the only color that the offspring can be is brown.

c) The offspring of a purebred white (recessive) cow and a purebred white (recessive ) bull would all be purebred white (recessive), for the same reason stated above in part b), the only difference being that the alleles are recessive and code for white color instead of being dominant and coding for brown color.

d) The offspring of a hybrid brown (dominant) cow and a purebred white (recessive) bull would be half hybrid brown (dominant) and half purebred white (recessive). This can be seen best if you set up a Punnett Square, which is a diagram that shows allele frequencies in offspring. This shows you that the chance that the offspring get the dominant allele from the mother cow is 50%, thus 50% would be hybrid brown (dominant), as the father can contribute only a recessive white allele. The other 50% would be purebred white (recessive) because the mother cow would be contributing a white allele and so would the father.

Hope this helps! :)
7 0
3 years ago
What is the most significant difference between freshwater aquatic ecosystems and marine ecosystems?​
blondinia [14]

Answer:

main difference between freshwater and marine life is the habitat they come from in the wild. Freshwater fish live in streams, rivers and lakes that have salinity of less than 0.05 percent. Depending on the species, fish can survive in temperatures ranging from 5 and 24 degrees Celsius

Explanation:

6 0
3 years ago
Read 2 more answers
Humans are different from each other in many ways, including in their sizes, shapes, skin color, facial features, and handedness
strojnjashka [21]

Answer:

<em>The correct option is C) Humans from different locations can donate blood and organs to one another.</em>

Explanation:

Organisms belonging to the same species can interbreed and produce fertile offsprings. As humans all around the world can interbreed and produce fertile embryo hence all human beings belong to the same species. Also, the organs and blood of organisms from the same species can be transferred depending on the compatibility. It is less likely for the human body to reject a graft from other human being rather than another species. Although, xenotransplantation has been practiced in the laboratory by scientists but it has not produced any good results.

4 0
3 years ago
Describe protons location charge mass
Damm [24]

Answer:

Protons are found in the nucleus of the atom. This is a tiny, dense region at the center of the atom. Protons have a positive electrical charge of one (+1) and a mass of 1 atomic mass unit (amu), which is about 1.67×10−27 kilograms.6  

Explanation:

8 0
2 years ago
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