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sashaice [31]
3 years ago
8

Different between sperm and ovum?​

Biology
1 answer:
rodikova [14]3 years ago
6 0

Answer:

1.Sperm is a male reproductive material that form at the onset of puberty.

2. Sperms are produce in immense amount.

3. Sperms are motile.

Explanation:

1. Ovum is produced in females which is called egg.

2. Ovum is nonmotile.

3. They are produced in limited amount in a process called ovulation.

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Answer: Look at Image Below

Explanation:

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3 years ago
The key to the evolution of altruism is that a. recipients have to be more likely to carry the altruistic allele than nonrecipie
cupoosta [38]

Answer:

The correct answer is b. actors have to be more likely to carry the altruistic allele than non actors.

Explanation:

Altruism is the behavior by an organism that benefits other organisms by costing its own fitness. The actor is the individual who is doing altruism and the recipient is the individual who is getting benefited by the actor's altruism.

An example of altruistic behavior can be seen in animal kingdom easily. Vampire bats give blood to those members of the community who were not able to go for search for blood show altruistic behavior.

Actors have altruistic genes that suggest them to behave altruistically. Non-actors may not contain alleles of altruism but the recipient might have altruistic alleles.

Hamilton's rule says that natural selection will favor the altruistic allele when rb > c.

where r = coefficient of relatedness between donor and recipient

          b = benefit received by recipient and

          c = cost paid by altruist.

Therefore, the correct answer is b.

6 0
4 years ago
Neurons transmit signals to the central nervous system. The brain processes this information to initiate a response. Two neurons
Free_Kalibri [48]

The question is incomplete. The complete question is as follows:

Select the correct answer from each drop-down menu.

Neurons transmit signals to the central nervous system. The brain processes this information to initiate a response. Two neurons communicate with each other through the ( axon , dendrite, synapse) . The ( cerebrospinal cord, glial cell, neurotransmitter) is released at the site to initiate action potential and carry the signal through the body.

Answer:

synapse

neurotransmitter

Explanation:

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The neuron receives signals through dendrites and two neurons  communicate with each other through a chemical called neurotransmitter, which is released at the end of a nerve fibre and carry the signal through the body.

Hence, the correct answers are synapse and neurotransmitter.

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The answer is A.
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Do you see the tectonic plates are moving away from each other
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