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puteri [66]
3 years ago
13

What is the function of the companion cells?

Biology
1 answer:
Alexus [3.1K]3 years ago
3 0

Answer:  

Companion cell is a type of specialized parenchyma cell, which is located in the phloem of the flowering plants.

Each of the companion cell is usually associated with the sieve element. The main function of the companion cell is uncertain but it regulates the activity of sieve tube.

It plays a major role in the loading and unloading of the sugar molecules into the sieve element. As the sieve tubes do not have nucleus and ribosomes so they need companion cell to help in the transportation of sugar molecules.

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Which part is a fluid cavity of the earthworm that gives it a hydrostatic skeleton?
Anvisha [2.4K]

Answer: Option B) Coelom

Explanation:

Hydrostatic skeleton is the type of skeleton possessed by soft-bodied animals such as earthworms and sea anemones. Fluid is secreted to fill the cavity spaces (coelom) in their body. The fluid then presses against the muscular body wall, causing the muscles to contract exerting pressure against the fluid thereby causing motion

Thus, coelom is the fluid cavity of the earthworm that gives it a hydrostatic skeleton

8 0
3 years ago
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A solution that is hypotonic to a cell has fewer solutes than the cell. the same concentration of solutes as the cell. more solu
Simora [160]

Answer:

2(h - 8) - h = h - 16 2. 4(x - 3) + 5 = 1 3. 70 = -7(-2 -2z) 4. -2x + 4 = 2(4x-3)-3(-8+4x

Explanation:

2(h - 8) - h = h - 16 2. 4(x - 3) + 5 = 1 3. 70 = -7(-2 -2z) 4. -2x + 4 = 2(4x-3)-3(-8+4x

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3 years ago
Which water-soluble vitamin may build to a toxic level?
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The answer is c pantorhenic acid

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2 years ago
Fill in the blanks below to complete the hypothesis for this lab. It should answer the lab question, “What is the effect of mole
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The correct answer is 'If molecules are small enough, then they can pass through the semipermeable membrane because they can cross the semipermeable membrane from their small pores or openings'.

The semipermeable membrane is permeable to few molecules, and the smaller molecules pass through the molecules from small pores present in the semipermeable membrane. The size of the big molecules are large, so, they cannot cross through semipermeable membrane.

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A functional or physiological adaptation:
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Answer:

A trust me.

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are you functional adaption is an adaption that helps an organism survive in a certain environment, typically altered by a physical stimuli, dietary changes, or injury.

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