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Alborosie
3 years ago
8

Please help giving brainliest whats the answer??????

Biology
1 answer:
Marrrta [24]3 years ago
3 0
Global winds I’m pretty sure
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Why are there no samples of rocks from the early Precambrian era?
xenn [34]

Answer:

The correct answer is -  D. All rocks were molten in that time period.

Explanation:

The early Precambrian era began 4.6 billion years ago. The formation of eath start from this era with dust and gas. The atmosphere at that time was too hot. It was like hades. The rocks were molten and appear to like an ocean of rocks.

Due to the molten rocks, there are no samples of rock from this area as it was too hot to be formed. There were boiling sulfur and gases were everywhere.

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3 years ago
Uniform region occupies an area based on a homogeneous characteristic, for example, __________.
nikklg [1K]
A uniform region occupies an area based on a homogeneous characteristic is a true statement. Regions can also be based on ecological features and as well as the location of it region itself.
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Consider a helminthic infection in which an individual is colonized by a parasitic worm. The worm is too big to be engulfed by a
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The worm gets coated with antibodies, which activate other cells in the immune system to secrete chemicals that kill it.

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Production of T-helper I cytokines like IFN gamma, IL-2 and IL-18 is highly protective against helminth infection by activating the macrophage intracellular killers. Protection against mucosal eosinophil responses in which antiparasitic chemicals are released. Killing also involves direct cytotoxic mechanisms in which T- cell and NK-cells directly release antiparasitic agents like perforin and granulysin which kill the parasite.

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Which is NOT a source of genetic variation among individuals?
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I believe its D I hope it helps
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Rna mrna trna <span>known as ribosomes; and finally, tRNA, or transfer </span>RNA<span>, that ferry amino acids to the ribosome to be assembled </span>
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