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lilavasa [31]
3 years ago
8

When a gene changes within a life span, this process is referred to as?

Biology
1 answer:
Helga [31]3 years ago
8 0
This process is known as adaptation.
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How does the frogs tounge help survival
bagirrra123 [75]
It helps them survive because since they eat mostly or all flies their long tounge can reach the flies from a long distance and that makes it easier to catch the flies
8 0
3 years ago
In a cross of purple flowered heterozygous plants (Pp), the letter P represents the allele for purple flowers and the letter p r
Andreyy89

Answer:

D (3/4)

Explanation:

This cross involves a single gene coding for flower colour in pea plant where the purple allele (P) is dominant over the white allele (p) since the purple allele masks the expression of the white allele in a heterozygous state (Pp). A cross between two heterozygous plants (Pp) will produce four possible offsprings with genotypes PP, Pp and pp in the ratio 1:2:1.

The PP and Pp genotypes are purple flowered while the pp is white flowered. Hence, the probability of having purple flowered plants from this cross is 3 out of 4 i.e. 3/4.

6 0
3 years ago
An abnormality in chromosome number is called a/an _______state.
GrogVix [38]
Aneuploidy
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5 0
4 years ago
Which of the following is not a component of the respiratory membrane?
Burka [1]

Answer:

D. Type II alveolar cells

Explanation:

Three layers together make the diffusion membrane or respiratory membrane, which make the total thickness of less than a millimeter i.e. about 0.2 micrometer. The three layers are as follows:

1. The squamous epithelium of alveoli. There are two types of alveolar cells called type I and type II. Type I makes the exchange surface of alveolar membrane and type II cells are responsible for secreting the lung surfactant that reduces the surface tension.

2. Endothelial lining of blood capillaries. These is rich network of blood capillaries near the wall of alveoli.

3. In between the squamous epithelium and the endothelium of blood capillaries fused basement membrane is present.

4 0
4 years ago
Mad cow disease is caused by deformed proteins called prions. The disease is spread when meat from an infected cow is eaten. Pri
jarptica [38.1K]

Answer:

D - Yes, because they can make more of themselves

Explanation:

A simple search online told me that they were organisms.

4 0
3 years ago
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