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Leto [7]
4 years ago
11

Why is the skin known to be the body's most important nonspecific defense ?

Biology
1 answer:
ziro4ka [17]4 years ago
4 0

Answer:

Explanation:

The body's most important nonspecific defense is the skin, because it acts as a physical barrier to keep pathogens out. Even openings in the skin (such as the mouth and eyes) are protected by saliva, mucus, and tears, which contain an enzyme that breaks down bacterial cell walls.

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What are the most likely percentages for offspring of two red/white-feather chicken parents? Hint: Complete a punnett square cro
Stella [2.4K]

Answer:

the last one

Explanation:

3 0
3 years ago
Which statement best describes the relationship between prophase and telophase?
Stells [14]
"Starting stage of nucleus division is prophase and ending stage of mitosis is telophase "
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3 years ago
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Don and ellie are trying to conceive a baby. How long should they wait before they suspect infertility?
hammer [34]

Answer:

They are to wait for at least one year.

Explanation:

Infertility maybe defined as trying to get pregnant without success despite having frequent sexual intercourse for a period of at least one year.

7 0
3 years ago
Tell me a little about prokaryotes and eukaryotes. What do these types of cells have in common? How are they different?
beks73 [17]

Hi There!

Tell me a little about prokaryotic and eukaryotes.

What do these types of cells have in common?

How are they different?

2 very common similarities between the types of cells is that they both have a certain type of structure and all cells have a plasma membrane, DNA, ribosome, etc. They are different in a way that eukaryotes have a "membrane-bound organelle" which usualy includes it having a nucleus. Whats cool is that eukaryotes can be multicellular or singled celled> For Example, plants, insects, and fungi. Prokaryotes don't have a nucleus or organelle (membrane bound).

Hope This Helps :)

4 0
3 years ago
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True or False: Meiosis halves the chromosome number, whereas mitosis maintains the same chromosome number.
AleksandrR [38]

Answer:

True

Explanation:

Meiosis is the kind of cell division that results in the production of daughter cells with each cell having half number of chromosomes as the parent cell. Meiosis is the cell division employed by reproductive cells to produce gametes/sex cells. Meiosis occurs in two stages i.e. Meiosis I and II. The chromosome number reduces by half in gametes in order to ensure that after fertilization of both male and female gamete, the resulting organism has the correct set of chromosomes. e.g diploid organism produces haploid gametes which fuses to produce a diploid organism again.

Mitosis is another type of cell division that results in identical daughter cells. They are identical in the sense that they possess the same number of chromosomes as the parent cell that divided. For example, a diploid cell undergoes mitosis to produce two diploid daughter cells.

8 0
3 years ago
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