1. Buccal cavity (oral cavity) and the nasal passage opens into Pharynx. Pharynx opens into esophagus of the digestive system and opens into larynx of the respiratory system.

2. It is an organ which is found in both vertebrates and non-vertebrates. However, the structure may vary from species to species.

3. The word “Pharynx” is derived from the Greek words “Pharunx” or “Pharung”. Its plural form is pharynges.

Explanation:

4 0

3 years ago

Read 2 more answers

When the body becomes dehydrated, a chemical signal is sent that causes nephrons in the kidneys to absorb more water and excrete

zhuklara [117]

I believe the answer you are seeking is feedback loop

8 0

3 years ago

Read 2 more answers

In beetles, the gene for color and the gene for pattern are located on the same chromosome and exhibit recombination. The lined

Pie

Explanation:

The genes that determine color and pattern are linked.

Solid pattern allele (L) is dominant over lined pattern (l)
Blue color allele (B) is dominant over aqua color (b)

<h3>Initial cross</h3>

Homozygous lined aqua beetle has the genotype lb/lb

It can produce only 1 type of gamete: lb

Homozygous solid blue beetle has the genotype LB/LB

It can produce only 1 type of gamete: LB

The F1 is formed by the union of the parents' gametes, so it will have the genotype lb/LB

<h3>F1 test cross</h3>

Test crosses involve a homozygous recessive individual.

The homozygous recessive individual lb/lb can only produce 1 type of gamete:

lb

The F1 individual lb/LB can produce 4 types of gametes:

lb - parental
LB - parental
lB - recombinant
Lb - recombinant

8 0

3 years ago