The chromosomal defect is caused when I part of a chromosome breaks off at either end attaches to another chromosome is called Translocation.
Cells are the smallest living thing and they are what form everything living. they are the same as atoms but the living kind?
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
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A good model would be a simple plant taking in sunlight, carbon dioxide (CO2), and water (H2O). Then, releasing glucose and oxygen.
