Option D – amphibians may use their skin for gas exchange is the characteristic feature of amphibians that differs from reptiles.
Explanation:
The amphibian skin is moist, thin and marbled and supplied by blood vessels running on its surface. The moisture present in the skin dissolves the oxygen present in its surrounding which is absorbed by the blood vessels. Special glands help the amphibians to keep the skin moist.
The very thick and tough scales present on the reptiles prevent them to absorb oxygen through their skin. Hence, they breathe and respire through their lungs.
Amphibians have three-chambered heart. They do not develop amniotic eggs. Adult amphibians although spend much time on land, they breed only in water due to the absence of amniotic sac
.
Answer: Their potential to regenerate and repair damaged tissue.
Answer:
Infusions essentially refer to when an outside substance is administered directly into the bloodstream, while transfusions refer to when the same substance, just from an outside source, is administered in the same manner.
Explanation:
Answer:
Explanation:
Firstly, let us break down the components:
A cilia is a hair-like structure positioned on a tissue for locomotive purposes
Epithelium is a type of tissue
Therefore, a ciliated epithelium is a kind of tissue that contains hair-like structures called cilia for locomotion. They can be found in our respiratory tracts lining, the fallopian tube of human females, brain etc. where they mainly perform the function of moving particles.
They help move foreign particles like dust from our respiratory tracts, they help move the egg from the ovary to the uterus of women, they also move cerebral spinal fluid in the brain.
Ciliated epithelium contains goblet cells, that secretes mucous to provide the moist medium for locomotion
Answer:
perharps 200
Explanation:
well since the formula is mass times speed
then it will be 100*2
which is 200
hope this helped in some way
