DENDROLOGY

DENDROLOGY AND SOCIETY

PLANT CLASSIFICATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Two characteristics of amphibians are ____
A
cold-blooded and hatch from eggs
B
warm-blooded and hatch from eggs
C
live birth and moist skin
D
moist skin and warm-blooded
Explanation: 

Detailed explanation-1: -An amphibian is a cold-blooded vertebrate (an animal with a backbone) animal that spends part of its life in the water and part on land. After hatching from an egg, an amphibian usually lives in water and breathes through gills. As it grows, it undergoes a metamorphosis, growing legs and developing air-breathing lungs.

Detailed explanation-2: -In all amphibians, eggs hatch after one to three weeks depending on water temperature. The resulting tadpoles initially live off the yolk that stays with them, but after a few days, they need to feed.

Detailed explanation-3: -Amphibians lay eggs that are non-amniotic (they lack the amniotic membrane that surrounds the embryo). Amphibian eggs don’t have a shell, instead they are surrounded by several gelatinous layers. Most amphibian larvae have gills and most adults have lungs. In many amphibians, the skin is also important in gas exchange.

Detailed explanation-4: -These can live both on land and in water. They are ectothermic animals, found in a warm environment. Their body is divided into head and trunk. The skin is smooth and rough without any scales, but with glands that make it moist. More items

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