Which is TRUE about skeletal

Biology

1 answer:

kozerog [31]2 years ago

8 0

It’s D because we just learned this

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In a healthy human, the typical life span of a red blood cell is

iogann1982 [59]

Human red blood cells are formed mainly in the bone marrow and are believed to have an average life span of approximately 120 days<span>.</span>

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4 years ago

What are substances needed for photosynthesis? What are substances produce during photosynthesis?

lakkis [162]

Needed:
Co2
Water
Solar Energy(Sunlight)

Produced:
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3 years ago

You’ve likely heard of polar bears (Ursus maritimus) and grizzly bears (Ursus arctos horribilis). Have you heard of a grolar bea

Karolina [17]

Answer:

allopatric speciation.

Explanation:

When the population belonging to the same biological species becomes separated from each other due to some geographical factor such that no gene flow can occur between the two separated populations then the speciation that occurs on account of this is known as allopatric speciation.
The geographical isolation that separates the two groups can be the origin of a mountain, the formation of islands, volcanic eruption, etc. which prevents the two groups fro mating with each other and ultimately causes their lineage to speciate.
Although the two separate populations are unable to mate due to geographical factors, if the two populations are allowed to mate again, given that they have not been separated very long ago, they can give rise to hybrids.
Thus, in the given question it is given that polar bears and grizzly bears have been mated and hybrids have been produced and this points out to the fact that polar bears are result of allopatric speciation.

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Which element in lava is responsible for preserving the direction of the magnetic fields? (1 point)

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A. Iron-titanium oxide helps preserve the direction of magnetic fields

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Which is an abiotic factor that characterizes the taiga biome?

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Abiotic Factors of Taiga Biome: The abiotic factors includes temperature, sunlight, soil, air, water. In taiga biome the climate is marked by bitterly cold winter of long duration and cool brief summer season. The winter months are always below freezing point.

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