Please anyone answer these 4 questions
1. Why do amoeba and hydra do not reproduce sexually ?
2. Why do female frogs produce eggs in large numbers ?
3. Is the change of puppies into adult dogs are called metamorphosis ?
4. What happens when semen is not formed in male reproductive organs ?
1. It is because both amoeba and hydra don't have sex organs.so,they follow asexual methods like binary fission in amoeba and budding in hydra.
but in certain cases hydra reproduce sexually.Most Hydra species have individuals which are either male or female. Eggs are produced by the female hydras and they are fertilised by sperms of male on the body walls of female.
2. It is because when the frogs lay eggs, most of the eggs are eaten by other animals or are transferred from one place to another by various natural factors. So the frogs lay many eggs so that at least some of them mature.
3. The process of transformation of shape of the body of a organism and resembling their parents is known as metamorphosis.The puppies by birth resemble their parents.The change of puppies to adult dogs is growth. It can't be termed as metamorphosis.
4. Reproduction does not take place.
It causes male infertiliy.
Many hormonal problems may arise.
Mainly pituitary gland do not perform its work and often delays.
Hope all the answers help u out:)
but in certain cases hydra reproduce sexually.Most Hydra species have individuals which are either male or female. Eggs are produced by the female hydras and they are fertilised by sperms of male on the body walls of female.
2. It is because when the frogs lay eggs, most of the eggs are eaten by other animals or are transferred from one place to another by various natural factors. So the frogs lay many eggs so that at least some of them mature.
3. The process of transformation of shape of the body of a organism and resembling their parents is known as metamorphosis.The puppies by birth resemble their parents.The change of puppies to adult dogs is growth. It can't be termed as metamorphosis.
4. Reproduction does not take place.
It causes male infertiliy.
Many hormonal problems may arise.
Mainly pituitary gland do not perform its work and often delays.
Hope all the answers help u out:)