THE EARTHWORM . What is the scientifie name of animals that have both male and f
ID: 3165861 • Letter: T
Question
THE EARTHWORM . What is the scientifie name of animals that have both male and female reproductive organs? 2. What is the purpose of sex ual reproduction? (REMEMBER OUR DISCUSSIONS ABOUT THE RAW MATERIALS OF EVOLUTION) 3. So why do you think the earthworm has both male and female organs? 4. How do they avoid self-fertilization? 5. How does the location of the main nerve cord in the earthworm differ from its location in humans? 6. How does the earthworm's circulatory system differ from humans? 7. How is the earthworm's circulatory similar to humans? 8. How do earthworms improve garden soils?Explanation / Answer
ANSWER 1
Monoecious and hermaphrodite are the animals having both male and female reproductive organs.
ANSWER 2
Sexual reproduction is the main cause of variations in the offspring. Variation is important for the purpose of evolution, as variations brings about evolution.
ANSWER 3
Earthworm have both male and female reproductive organs. Two pair of testes are present in 10th and 11th segment. Single pair of ovary is present in 13th segment of body.
ANSWER 4
Self fertilisation can't takes place in earthworm because they exhibit protandrous condition i.e. male sex organs mature earlier than female sex organs, therefore cross fertilisation is only way of reproduction.
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