20 chromosomes.
A cell with 40 chromosomes going through meiosis will result in individual haploid cells with 20 chromosomes each.
After the first nuclear and cellular division in meiosis, each cell will already have 20 chromosomes each, since homologous chromosomes are separated at Anaphase I in Meiosis I. After the second nuclear and cellular division in meiosis, each cell will have 20 chromosomes as well, since the sister chromatids of each of the 20 chromosomes are separated during Anaphase II in Meiosis II.
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A - The alveoli have a membrane that is only one cell thick to allow for a short diffusion time to capillaries.
Answer: The answer is option B. Cell Walls
Explanation: Prokaryotic cells are much smaller than eukaryotic cells, have no nucleus, and lack organelles. All prokaryotic cells are encased by a cell wall. In eukaryotes, vertebrates don't have a cell wall but plants do.
Answer: True.
Explanation:
Humus are decayed dead plants and animals in the soil. They are decayed organic matter(plants and animals). They are formed by the incorporation of plants and animals matter in the soil by the action of microorganisms. Humus provide nutrients for the soil, increase soil porosity and create good soil tilth. The good soil with help microganisms to perform their actions in the soil and improve soil structure.
The answer is
letter C.
<span>
The Zygomycota is a phylum
of fungi that consists of decomposers that utilize flagellated spores. The
flagellated spores are formed during sexual reproduction. There are
approximately 1,050 species known to be included in this phylum. They are
usually found living in soil or on decaying plants and animals. Some of the
zygomycota are parasites of plants, insects, and small animals. They also have
a tendency to form symbiotic relationships with plants.</span>