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3 years ago

A flea is a tiny wingless insect with a flat body designed to easily navigate through

Biology

1 answer:

11111nata11111 [884]3 years ago

6 0

Answer:

A. Parasitism, because the flee is benefitting and the mammal is harmed.

Explanation:

Parasitism is when one organism which is a parasite lives on another which is the host, and gaining benefits from it and at the same time maiming havoc to it. Parasitism is common among living organisms. Animals are most times the host to a range of parasitic organisms which include viruses, bacteria, fungi,protozoa, also flea, tick, mites etc.

Parasites like fleas, tick and leeches live on the body surface of their host, which is make them ectoparasites while those that live inside their hosts are endoparasites.

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Two barometric pressure readings taken 12 hours apart in four North Carolina cities are shown in the table. City Air Pressure 1

mr Goodwill [35]

Answer:

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Explanation:

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3 years ago

What mineral particle is the smallest in size? A. Sand B. Clay C. Silt D. Loam

Elis [28]

A.sand

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7 0

3 years ago

Read 2 more answers

Of the answer choices, what is the most likely reason that paracrine signaling does not activate the cell that is producing the

riadik2000 [5.3K]

Answer:

The correct answer is The cells do not have proper receptor.

Explanation:

During paracrine signaling a signaling molecules are generated from one cell.The generated signaling molecule then binds to the receptor of neighboring cell to carry specific signal from donor cell to the acceptor cell.

But the signaling molecules will not bind to the cell that is producing it because that producing cell do not contain proper receptor to bind that signaling molecule.

The binding of signaling molecule to the receptor of its producing cell occur during autocrine signaling.

3 0

3 years ago

Water is what type of Molecule

NISA [10]

Answer:

polar

Explanation:

water is polar molecule

4 0

3 years ago

Binding of ________________ to receptors (ligand-gated) on the sarcolemma at the neuromuscular junction is vital for depolarizat

kifflom [539]

Answer:

Binding of ACh (acetylcholine) to receptors (ligand-gated) on the sarcolemma at the neuromuscular junction is vital for depolarization of the muscle fiber.

Explanation:

It allows acetylcholine to be released into this synapse when an action potential hits a neuromuscular junction. Acetylcholine attaches to the nicotinic receptors localized on the post-synaptic membrane of the muscle fibre's motor end plate, a specialized region.

Hence , the answer is ACh (acetylcholine) .

8 0

3 years ago