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PilotLPTM [1.2K]
4 years ago
5

The beginning of life on land is marked by which of the following eras?

Biology
2 answers:
Ivanshal [37]4 years ago
7 0
B. paleozoic- specifically the devonian period
Andrej [43]4 years ago
6 0
The answer is B.  Paleozoic

This era was the first era where insects, amphibians, and reptiles roamed the Earth.

Hope this helps!
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Zygote, gamete, and fertilization are key terms associated with sexual reproduction. identify the definitions and examples of th
Debora [2.8K]
The zygote simply is the fertilized ovum or egg cell or female reproductive cell. It is the result of the process of fertilization of the fusion of the male reproductive cell (gamete) and the female reproductive cell ( gamete). In human, the zygote is the resulted cell of fertilization of the sperm and the ovum. It is diploid or 2N which means it contains two sets of chromosomes; one set from the male and the other from the female.

The gamete is the reproductive cell. There are two types of gametes; male gamete and female gamete. In human, the male gamete is called the sperm and the female gamete is called the ovum. The gamete is the last stage of the reproductive cells to be completely formed.

Fertilization is the fusion of the male gamete and the female gamete to form the zygote. Fertilization may be external as in fish or internal as in human.
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4 years ago
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Answer:

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4 years ago
What would change in the sound wave if you adjusted the volume of your voice?
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If it was higher the frequency would be more intense but if it was lower the frequency would be less intense
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Answer: The number of protons in an atom is different than the atom’s total mass.

Explanation: I had the test and got the answer correctly.

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