Answer:# 1 is salt #2 is fresh #3 fresh #4 salty
Explanation:
Thin coat , becaus eit protects from temperature
C3H2H4- Imidazole-Organic compound
AlBr3-Aluminium bromide- Inorganic
C6H5F-Fluorobenezene-Organic
Cro3-chromic acid-Inorganic
H2O2-Hydrogen peroxide-Inorganic
C12H22O11-Sucrose- organic
Basically when a compound contains carbon atom in it its said to be organic.
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: binomial nomenclature
