NEET BIOLOGY

GENETICS AND EVOLUTION

INHERITANCE AND VARIATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A fish and a turtle both hatch from eggs. Why do they both hatch from eggs?
A
They live in a similar place and have the same needs
B
They inherited egg-laying from their parents
C
They breathe by taking in gas from the air and into their bodies
D
They eat the same types of food
Explanation: 

Detailed explanation-1: -Using her back flippers, the reptile digs a nest in the sand. Digging the nest and laying her eggs usually takes from one to three hours, after which the mother turtle slowly drags herself back to the ocean. The sea turtle lays up to 100 eggs, which incubate in the warm sand for about 60 days.

Detailed explanation-2: -As the chance of fertilization is nature dependant i.e it depends on the movement of water for the sperm to come in contact with the egg. Thus the fish and frog produce a huge number of eggs each year to overcome the chance factor(sperm to come in contact with egg) and produce offsprings.

Detailed explanation-3: -Well, it turns out that it’s relatively easy to find out. Can tortoises and turtles lay eggs without mating? Yes, they can. In fact, just like a chicken or a duck does – if a female tortoise doesn’t find a mate and get fertilized, her eggs will appear anyway.

Detailed explanation-4: -Birds and fish are not the only animals that lay eggs. Insects, turtles, lizards, and reptiles lay eggs, too. Only two mammals lay eggs: the platypus and the echidna.

There is 1 question to complete.