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3 years ago

Where do supporters of the inside out model say earths water originated from

Biology

2 answers:

lawyer [7]3 years ago

7 0

Water came from inside the earth crusts, further down though. hope this helps :)

pickupchik [31]3 years ago

6 0

The farther layers of earths crust

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some activated b cells will migrate to the follicles, where they continue to differentiate with the help of follicular t helper

Leya [2.2K]

Some activated b cells will move to the follicles where, with the aid of follicular t helper cells in the spleen and lymph nodes, they continue to differentiate.

<h3>B-cell differentiation: </h3>

In reaction to the antigens, these cells develop in the bone marrow and create antibodies. Humoral reaction involves B lymphocytes. B cells create plasma cells and memory B cells as soon as they come into contact with the antigens.

In the spleen and lymph nodes, B-cells develop into plasma cells. An immunoglobulin receptor on each B-cell can bind to a single, distinct, unprocessed antigen. After being exposed to an antigen, B cells release interleukins to become active.

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1 year ago

Assume that a point mutation changes the codon AUU to AUC. Why is this a silent mutation?

omeli [17]

Since the two codons are for the same amino acid, the mutation doesnt change the phenotypes.

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3 years ago

If you live in the city and head out to a rural town, the _____ suggests the rural area's temperature would be _____. rain shado

Amanda [17]

Answer:

the correct answer is urban heat island effect, cooler.

Explanation:

If you live in the city and head out to a rural town, the urban heat island effect suggests the rural area's temperature would be cooler.

hope this helps you!!!

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3 years ago

PLZZ help me with number 5!!!

Kobotan [32]

Elliptical Shape

Answer Answer

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3 years ago

Why are gymnosperms no longer restricted to moist environments, as are ferns and mosses?

erastovalidia [21]

Gymnosperms are no longer restricted to moist environments, as are ferns and mosses because they have evolved to produce non-flagellated pollens that do not require water or moisture to reach the egg whereas ferns and mosses have flagellated sperm that needs moisture to swim towards the egg.

Another major evolutionary adaption in gymnosperms is the production of seeds instead of spores since seeds contain their own nutrition in the form of endosperm, seeds can travel large distances through wind or animals and can germinate when they find suitable conditions. Seeds can remain dormant for several years whereas spores have a shorter lifespan.

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2 years ago