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Which one of the following statements about human sperm is correct?
1. Acrosome has a conical pointed structure used for piercing and penetrating the egg, resulting in fertilisation
2. The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilisation
3. Acrosome serves as a sensory structure leading the sperm towards the ovum
4. Acrosome serves no particular function.
The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilisation
What is ecotourism, and how can it be used to preserve biodiversity? Ecotourism is tourism involving people who want to see intact ecosystems and their unique organ- isms. Inco
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Lack of iron in the photic zone of the ocean restricts the size of plankton population.Iron is what kind of factor for marine plankton?
Can all the four chambers of the human heart experience systole simultaneously? Describe justifying your answer. What do you call the circulatory fluid in the body of cockroach
Define Procedure for Standardization of HCl for Saponification Number of Fats? Precisely weigh 2.65 g of anhydrous sodium carbonate and transfer it to 100 ml volumetric flask.
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what is the meaning of heterotropic mode of nutrition. with examples.
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