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Lisa [10]
3 years ago
15

What has a biconcave shape to increase its surface area​

Biology
1 answer:
jeka943 years ago
3 0

Explanation:

The human erythrocyte adopts a distinctive biconcave disc form in vivo. ... It has been suggested that this shape maximises the surface area to volume ratio and thus expedites diffusion.

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Skin color is controlled by three pairs of alleles. Someone with very light skin has 6 recessive alleles while someone with very
murzikaleks [220]

Answer:

Has three dominant alleles

Explanation:

Skin colour is a polygenetic inheritance and it is controlled by three genes pairs of alleles. The human skin is determined by the amount of melanin it contains. A combination of melanin producing alleles  determines the skin color.

In the above question, the person has a skin color that is midway meaning only half of the alleles produced melanin. The total number of alleles is 6 and half of it is 3. So, only 3 alleles were dominant and the remaining three were recessive.

8 0
3 years ago
Which one of the following accurately describes the reactions within photosynthesis?
zvonat [6]
It's probably C. Because it makes the most sense and photosynthesis doesn't make ATP and if you don't think C. Is the answer then put D.
7 0
3 years ago
Read 2 more answers
Identity achievement has been associated with all of the following except _________. A. High self-esteem B. Achievement motivati
Alex777 [14]

Answer:

C. Insecurity

Explanation:

5 0
2 years ago
What is the Gestalt Principle?
WARRIOR [948]

Answer:

The Gestalt Principles are a set of laws arising from 1920s’ psychology, describing how humans typically see objects by grouping similar elements, recognizing patterns and simplifying complex images. Designers use these to engage users via powerful -yet natural- “tricks” of perspective and best practice design standards.

Explanation:

5 0
2 years ago
LIttle Jimmy Brown's blood typing results showed agglutination with both the plasma containing anti A and anti B antibodies. Wha
Marat540 [252]

Answer:

Jimmy's blood type: "O" Blood

Jimmy can receive blood from: O blood type only.

Explanation:

The anti-A antibodies are present in the plasma of "B" blood type. Similarly, the blood type "A" has anti-B antibodies in its plasma. Since Jimmy's blood is showing agglutination with both "A" and "B" blood type, he has "O" blood type.

The "O" blood type has both anti-A and anti-B antibodies in its plasma and exhibits agglutination with both A and B blood type. The "A" antigen of "A" blood type reacts with anti A antibodies of jimmy's blood while "B" antigen of "B" blood type would exhibit agglutination with "anti B antibodies" of Jimmy's blood. He can get blood from "O" blood type only as he has both anti-A and anti B antibodies in his blood plasma.

7 0
3 years ago
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