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marissa [1.9K]
3 years ago
5

What’s the function of the cell membrane ?

Biology
2 answers:
Mariana [72]3 years ago
7 0
The cell membrane,has two functions: first, to be a barrier keeping the constituents of the cell in and unwanted substances out and, second, to be a gate allowing transport into the cell of essential nutrients and movement from the cell of waste products.
pashok25 [27]3 years ago
5 0

Answer:

cell membranes protect and organize cells

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The gut of a vertebrate is often described as an elongated tube consisting of four layers of different cell types.
Ne4ueva [31]

Answer:

The correct answer is C. <em>"Cartilage, smooth muscle layers, mucosa, circular muscle". </em>

Explanation:

The intestine wall is conformed of 4 layers: mucosa, submucosa, muscular and serous.

  • The mucosa layer is composed of cylindrical simple epithelium that shapes tubular glands named Lieberkühn crypts and villus, these las one in charge of absorption. The crypts are invaginations of the epithelial surface and they have the stem cells. The epithelial cells renew constantly, so cells divide in the base of the crypts and then they move to the superior portion of the digestive tube, where they die. This layer also has a basal sheet and a thin muscular sheet.
  • The submucosa layer is composed of dense connective tissue, with adipose tissue located in some specific areas and large-caliber blood vessels.
  • The muscular layer is composed of two bands disposed perpendicularly between them, the <u>internal thick circular muscle</u> and the <u>external thin longitudinal muscle layer</u>.
  • The serouse layer is composed of a very thin connective tissue that in some points continues with the peritoneum.
4 0
3 years ago
Which of these is true for a daughter cell produced by mitosis?
Aleonysh [2.5K]
A. mitosis produces 2 genetically identical diploid daughter cells from one parent cell.
3 0
3 years ago
Read 2 more answers
Fill in the missing number to balance the equation.
goldfiish [28.3K]
I don’t the answer so I will guess b lol
6 0
3 years ago
Read 2 more answers
to encourage a yellow pigmentation, micrococcus luteus has to be incubated at a. 0 degrees C b. 25 degree C c. 37 degree C d. 10
eduard

Answer:

C. 37 degree C

Explanation:

Micrococcus luteus is a pathogenic Bacteria and has similar features with Staphylococcus aureus. It usually found in the body in the respiratory tracts and cutaneous parts of the body. They rarely cause disease except if an individual has a weak immune system.

Due to the Bacteria thriving well in the body of humans, the optimal incubation rate is usually 37 degree C which is the same body temperature of humans and it aids the yellow pigmentation of the bacteria

6 0
4 years ago
Drosophila eye color is an X-linked trait. Red eye color is dominant, and white eye color is recessive. Which Punnett square sho
Anestetic [448]

The genotype of the mother must be heterozygous.

<h3>Punnet' square</h3>

In order to obtain a probability of 25% red-eyed males from the offspring, the mother must be heterozygous for the trait. The father can be of any genotype.

Thus, the likely genotype combination that will result in 25% red-eyed males are:

  • X^RX^r x X^RY
  • X^RX^r and X^rY

When you cross the first one above, the genotype of the offspring would be X^RX^R, X^RY, X^RX^r, X^rY.

The second cross will give offspring with the genotypes X^RX^r, X^RY, X^rX^r, X^rY

Both crosses give a 25% chance of producing re-eye males.

More on Punnet's square can be found here: brainly.com/question/3154616

#SPJ1

4 0
2 years ago
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