The cell wall contains not only cellulose and protein, but other polysaccharides as well. The cell wall provides structural support and protection. Pores in the cell wall allow water and nutrients to move into and out of the cell. The cell wall also prevents the plant cell from bursting when water enters the cell.

6 0

3 years ago

The imperial shrimp, Periclimenes imperator, is sometimes seen riding on the back of large sea cucumbers. The shrimp gets to mov

nydimaria [60]

Commensalism, because one species benefits

5 0

4 years ago

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100 individuals whose genetic makeup is composed of 20% recessive alleles join an established population. The established popula

NeX [460]

Answer:

population = 600

heterozygotes = 2pq

The homozygous recessive percentage = $q^{2}$

q = 0.1

Solve for q:

∴ q = $\sqrt{q}$

∴ q = $\sqrt{0.10}$

∴ q = 0.316

solve for p:

for p + q = 1,

thus p = 1 – q = 1 – 0.316 = 0.684

The heterozygotes = 2pq

2pq = 2 x 0.316 x 0.684 = 0.432

600 x 0.432 = 259.2 = 259

so, the population reaches Hardy Weinberg equilibrium, 259 of indviduals should be heterozygous for this trait.

Hence, the correct answer is 259 .

4 0

3 years ago

What is the purpose of the Taj Mahal?

Strike441 [17]

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It was commissioned in 1632 by the Mughal emperor Shah Jahan (reigned from 1628 to 1658) to house the tomb of his favourite wife, Mumtaz Mahal; it also houses the tomb of Shah Jahan his self

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3 years ago