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astra-53 [7]
1 year ago
8

21. The diagram shows oxygen moving into an animal cell.

Biology
1 answer:
arsen [322]1 year ago
8 0

Peripheral tissues receive oxygenated blood via the circulatory system. Delivering oxygen to cells, oxygen diffuses through tissues along a gradient of high to low amounts. Thus, option B is correct.

<h3>What is the movement of oxygen in cell?</h3>

Hemoglobin and oxygen interact chemically inside the red blood cell, where it is carried both by free diffusion and hemoglobin-facilitated diffusion. In blood plasma, oxygen is transferred by free diffusion and convection through cell membranes.

Therefore, The concentration of oxygen will be lower inside the cell compared to outside the cell.

Learn more about oxygen here:

brainly.com/question/14531171

#SPJ1

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Select the relevant adaptation exhibited by plants in their transition to land from an aquatic lifestyle.
Ainat [17]

Answer:

b, d, and f

Explanation:

The transition from aquatic lifestyle to land posses some problems to plants; these include;

  • <em>Water conduction and food distribution problem</em>
  • <em>Desiccation problem</em>

In order to firmly establish in the terrestrial environment, <u>plants need to be able to obtain the water necessary for their metabolic activities and be able to  distribute manufactured food from the various sources of production to other parts of the plant body.</u> This is overcome by the development of conducting tissues in the form of phloem and xylem. The xylem is used to conduct water from the root to the body of the plant while the phloem is a tissue used to conduct manufactured food from the point of manufacturing round the necessary parts of the plant.

<u>Plants also face the problem of heat and the risk of desiccation on land</u>. The development of waxy cuticle takes care of this problem. The waxy cuticle acts as an insulator on leaves and other organs of the plant and thus protect them from desiccation.

Correct options: b, d, and f

3 0
3 years ago
Which two organ systems work together to provide a structural framework for movement?
lukranit [14]

Answer:

Skeletal and Muscular

Explanation:

They help work together to provide support to maintain the body together and to help move.

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6 0
3 years ago
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What ecological level consists of all the ecosystems found on earth?
Wittaler [7]

Answer:

Levels of organization in ecology include the population, community, ecosystem, and biosphere. An ecosystem is all the living things in an area interacting with all of the abiotic parts of the environment.

Explanation:

Hope this helps! :)

5 0
3 years ago
Vibrio cholerae produces a toxin that binds to a plasma membrane receptor on intestinal cells of the host. The toxin permanently
kozerog [31]
Ugh, cholera is a terrible disease. The answer is A.
4 0
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What are Intramembranous and endochondral ossification?
erma4kov [3.2K]

Answer:

The direct conversion of mesenchymal tissue into bone is called i<u><em>ntramembranous ossification</em></u> .The process by which a cartilage intermediate is formed and replaced by bone cells is called <em>endochondral osssification.</em>

Explanation:

Intramembranous ossification  is one of the two essential process during the fetal development  of the gnathosome skeltal system by which rudimentary bone tissue is created. It is the process of bone development from fibrous membranes. It is involved in the formation of the flat bones of the skull, mandible and the clavicle. This type of ossification also helps in healing of bone fractures.

Endochondral Osssification: Method of forming a bone through cartilage intermediate. It is also involved in the formation of long bones.

7 0
3 years ago
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