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dmitriy555 [2]
4 years ago
7

Properties of permanent tissue

Biology
1 answer:
RUDIKE [14]4 years ago
6 0

 Cells may be living or dead.

 Cell walls may be thin or thick.

 Cells may contain reserve, excretory or secretory substances.

 Intercellular spaces may be present or absent.

 Metabolic activities are relatively slow.

Vacuoles prominent.

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If a mutation occurred in the cadherin gene so that the cytoplasmic domain no longer attached to the cytoskeleton, which of the
Svetllana [295]

Answer:

A. Cadherins in desmosomes would no longer be anchored to intermediate filaments

Explanation:

Cadherins are Ca dependent molecules (proteins) that are involved in cell-cell adhesion (they are type of cell adhesion molecule-CAM). Cadherins are composed of: a small cytoplasmic component, a transmembrane component, and the extra-cellular part.

There are types of cadherins called desmosomal cadherins which are involved in the formation of desmosomes (structure for cell-cell adhesion) and they bind to linker proteins and keratin intermediate filaments.

4 0
4 years ago
What kind of scientist would use a dichotomous key?
Vadim26 [7]

Answer:

Many scientists use dichotomous keys to identify plants, animals, and other organisms. They may also use dichotomous keys to identify species, or to determine whether a particular organism has been identified and described before. However, dichotomous keys are not used only to identify organisms.

7 0
3 years ago
Which of the following statements is correct?
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Answer:

im pretty sure its C sorry if im wrong

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Explanation:

7 0
3 years ago
What always happeneds when the. nucleiotide has in a strand of DNA is rearranged
Akimi4 [234]

Answer: Option 2) .the information on the strand changes

Explanation:

The rearrangement of nucleiotides in a DNA strand could be reversing the position of a chromosomal segment (Chromosomal inversions) OR interchanging the genetic parts of chromosomes (Chromosomal translocation)

In either case mutations occur because the information on the strand changes.

6 0
3 years ago
figure 6 DNA, which is made up of atoms of nonmetals, is essential to life. list at least two other substances essential to life
kow [346]

Answer:

Glucose

Oxygen gas

Explanation:

Glucose is a non-metallic carbohydrate substance. It is the monomeric unit of the digestion of complex carbohydrate.

This compound is very important to all lives. The energy needed to power the activities in the body are derived from the compound.

It is made up of carbon, hydrogen and oxygen atoms.

Also, oxygen gas is used by animals for their metabolic processes. The gas combines with glucose to release chemical energy for use in the body. This molecule is purely made up of two atoms of oxygen that are covalently bonded together.

Anytime we breathe, we take in oxygen for use in our body

7 0
3 years ago
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