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Murljashka [212]
3 years ago
7

What are the two reactants that plant cells need to do photosynthesis?

Biology
1 answer:
s344n2d4d5 [400]3 years ago
7 0
Carbon dioxide and water (and sunlight)
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Peripheral resistance depends on all of the following factors except __________.
pantera1 [17]

Options for the question have not been given. They are as follows:

blood vessel length

blood viscosity

blood vessel diameter

blood colloid osmotic pressure

Answer:

blood colloid osmotic pressure

Explanation:

  • Peripheral resistance is the resistance to blood flow by blood vessels.
  • It is directly proportional to blood vessel length as more the distance to travel, more will be the resistance.
  • It is also directly proportional to blood viscosity as more energy is required to push viscous material.
  • It is indirectly proportional to blood vessel diameter. More the diameter of the vessel, easier it is for the blood to pass.
  • However, it does not depend on blood colloid osmotic pressure. Colloid osmotic pressure is created by the protein components of blood and they do not have any direct impact on blood flow.
6 0
2 years ago
The electric signal for a contraction passes rapidly from one heart muscle cell to the next by way of
malfutka [58]

Answer;

-Gap junctions

Explanation;

-Gap junctions are a specialized intercellular connection between a multitude of animal cell-types. they are organized collections of protein channels in cell membranes that allows ions and small molecules to pass between adjacent cells.

-Gap junctions allow the exchange of ions, second messengers, and small metabolites between adjacent cells and are formed by two unrelated protein families, the pannexins and connexins.

4 0
2 years ago
Which of the following describes a relationship of mutualism?
Reika [66]
  • Oxpecker birds eat parasitic ticks off the backs of zebras is an example of mutualism.
  • Mutualism is defined as a relationship between organisms in which both the individuals involved are benefitted from each other.
  • In the case of oxpecker birds and zebras, the oxpecker birds benefit as they get their food from the parasitic ticks living on the zebra and the zebras benefit as the birds help them to get rid of the parasites.
  • In this way, both these organisms are involved in a mutualistic relationship.
6 0
3 years ago
Read 2 more answers
Vesicles are the tiny transport packages made by- A. Golgi body
vodka [1.7K]

Answer:

a

Explanation:

6 0
3 years ago
What are the limitations of electric impulse mechanism?​
earnstyle [38]

Answer:

The limitations that nerve impulses have are

Explanation:

1). The impulses can move only in one direction.This is because the nerves are structured to allow unidirectional flow.

2). The electrical impulses are quite short acting. The message is only sent in the presence of the stimulus.

5 0
3 years ago
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