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bagirrra123 [75]
2 years ago
11

Reasons why a transport system is necessary in higher animals?​

Biology
1 answer:
tankabanditka [31]2 years ago
7 0

Explanation:

Answer: The higher animals needs and internal transport system so that the innermost cells can get nutrition which cannot be left on diffusion and osmosis to transmit. They also needed an internal transport system and so that they get oxygen to the internal cell...

I hope you help :)

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Thinking creatively about evolutionary mechanisms, identify at least two schemes that could generate allelic polymorphism in a p
Ede4ka [16]

Complete question:

Thinking creatively about evolutionary mechanisms, identify at least

two schemes that could generate allelic polymorphism in a population except natural selection that favors heterozygotes.

<u>Select the two correct answers.</u>

-inbreeding among individuals in the population

-purifying selection against mutational variants of alleles in the population

-continuous migration of individuals with new alleles into the population

-mutations that do not severely affect viability and reproductivity

-genetic drift of alleles common in the population

-events leading to genetic bottleneck effect

Answer:

The two events that might favor heterozygotes among the options are  

  • The Continuous migration of individuals with new alleles into the population
  • Mutations that do not severely affect viability and reproductivity.  These might favor heterozygous frequencies.

Explanation:

Due to technical problems, you will find the complete explanation in the attached files.

Download pdf
3 0
2 years ago
You have a cup of vegetable oil and a vial full of normal phospholipids. What would you predict would happen if you dropped the
tino4ka555 [31]

The vegetable oil is made up of chains of long fatty acids. These long chains of fatty acids are non-polar in nature, i.e, they do not interact through ionic forces rather by covalent forces. The phospholipids are also long chain fatty acids with an ionic head. The mixing of the vial of phospholipid in vegatable oil will lead to the formation of a micelle where the lipophilic ends of the phospholipid will be on the outside and the lipophobic end will be towards the centre of the micelle.

7 0
3 years ago
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In piranha, fish with large teeth represent the dominant trait. Because the dominant trait masks the recessive trait, in a popul
vodomira [7]

Answer:

B. 25%

Explanation:

Assuming the trait for teeth size is represented by the allele A. large teeth size is dominant and will be represented by A while small teeth size will be represented by a.

Assuming that the population of 1,000 [piranhas are all heterozygotes and they crossbreed with one another:

Aa   x   Aa = AA, Aa, Aa and aa

The ration of piranhas with large teeth to that of the small teeth is 3:1 or 75:25.

Hence, about 25% of the next generation of the population is ecpected to have small teeth.

The correct option is B.

8 0
3 years ago
Ozone close to Earth's surface in the form of ___________ is harmful.
Serhud [2]

C. smog

is the correct choice plug

3 0
3 years ago
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A student looking through a light microscope saw this cell in cytokinesis. This cell is most likely from — *
Aliun [14]
A student looking through a light microscope saw this cell in cytokinesis. This cell is most likely from a plant.
4 0
3 years ago
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