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elixir [45]
3 years ago
14

ОО.0 О.

Biology
1 answer:
Anna71 [15]3 years ago
6 0

The olfactory epithelium is a specialized epithelial tissue inside the nasal cavity that is involved in smell. In humans, it lies on the roof of the nasal cavity about 7 cm above and behind the nostrils.

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3. The vast majority of animals are​
gogolik [260]

Answer:

Linnaean steps.

Explanation:

About 1.2 million species have been formally described, the vast majority from the land rather than the oceans

5 0
3 years ago
Scientists used cells called fibroblasts to study factors that cause nondividing cells in the G0 stage of the cell cycle to reen
dalvyx [7]

Answer:

a)

Based on the data for the group of cells, among the four proteins, protein p16 does not appear to play a role in blocking cell cycle entry by fibroblasts. The evidence for this is in group 7, where, in the absence of the other proteins the p16 presence has helped the replication of DNA almost as good as the growth in the 10% serum.

In the other groups (3 to 6) the presence of any other protein has always inhibited the DNA replication compared to the fibroblast in 10% serum.

b)

Groups 4 to 7 have higher chance of including cells undergoing mitosis as they are showing more DNA replication compared to the group 1 which has 0% serum. In this group since it has been cultured for 48 hours in the absence of serum (serum-starvation), they stop dividing and enter the G0 stage of the cell cycle.

c)

The data here would provide the crucial information on which protein is required to induce the cells to enter the cell cycle. To recover from an injury the cells should divide and repair the wound, this will happen through stimulating the cell with the required protein. It would also shed light on which protein would inhibit the cells from entry into the cell cycle.

Note: Figure is added in the attachment section

3 0
4 years ago
Drag one of the nucleotides to a corresponding nitrogenous base on one of the two strands. What is
Degger [83]

Answer:

This enzyme is responsible for the production of DNA molecules from RNA molecules.

Explanation:

DNA polymerase is a type of enzyme that produces DNA molecules from RNA molecules. The enzymes play a vital role in the replication of DNA in which the enzyme produces two identical copies of DNA from one original DNA molecule. This replication of DNA is very important for cell division as well as growth of the organisms. Without this replication, no mitosis occurs in the body that leads to no growth of the organism so we can say that this enzyme plays a great role in growth of an organism.

6 0
3 years ago
Ii) Explain briefly how these features contribute to the efficiency of photosynthesis?​
Damm [24]

Answer:

(Didn't list features so might be wrong)

distance away from organism to energy source(sun)

the amount of carbon dioxide

the amount of water

the concentration of energy (example; if you were conducting a lab and you use light bulbs as a energy source, higher wattage would be better then lower wattage.)

all of these need to be proportion to each other if you have too much of one thing and not even of the other then the organism will not preform photosynthesis efficiently.

Explanation:

Highschool biology lab

5 0
3 years ago
This is an image of a kelp forest. All BUT ONE is a characteristic of kelp and kelp forests on the west coast of North America.
Tema [17]
The answer to the question:
<span>This is an image of a kelp forest. All BUT ONE is a characteristic of kelp and kelp forests on the west coast of North America. That is:

A) Kelp are large brown algae.
B) Kelp live in cool, relatively shallow waters close to the shore.
C) Kelp forests form in deep, open waters and are found at depths greater than 130 feet.
D) Aquatic organisms use the thick blades in a kelp forest as a shelter for their young from predators in the area.

is:
 </span>C) Kelp forests form in deep, open waters and are found at depths greater than 130 feet.
4 0
3 years ago
Read 2 more answers
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