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balu736 [363]
3 years ago
12

During its annual migration, the red knot, a medium-size shorebird, flies the entire length of north and south america. during o

ne critical stop to feed on the eggs of horseshoe crabs, the birds nearly double their body mass. the relationship between the red knot and the horseshoe crab is that of
Biology
1 answer:
solong [7]3 years ago
7 0
<span>The relationship between the red knot and the horseshoe crab is that of parasitism. The red knot benefits at the expense of the horseshoe crabs while the horseshoe crab only loses.</span>
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Explanation:

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2 years ago
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Delvig [45]
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Novay_Z [31]

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The case in which facilitated diffusion would be needed is in the transport of large non-polar molecules moving down the concentration gradient.

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<em>     A and C. Passive transport, as facilited diffusion,  implies movement in favor of a concentration gradient.</em>

<em>     B and C. Non-polar small or very small molecules can cross the membrane by simple diffusion.</em>

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