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Mila [183]
4 years ago
14

There are many developmental stages that a human undergoes between fertilization and birth. Immediately following which stage do

es
cellular differentiation begin?

Biology
2 answers:
lianna [129]4 years ago
8 0

Answer:

W

Explanation:

Because when the sale starts invited it starts out as a singular cell, then divide itself into two and it continues to divide itself. So the answer that would make the most sense would be W because it starts out with only two.

Gala2k [10]4 years ago
4 0

Answer:

The answer is X

Explanation:

When the blastula changes into the gastrula (X), three layers form:

an outer layer, known as the ectoderm,

an inner layer, known as the endoderm, and

a middle layer, known as the mesoderm.

These layers then differentiate into a human's tissues and organs.

and I took the test

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Which type of white blood cells produces defensive proteins called antibodies?
Aleks04 [339]

Answer:

Lymphocytes

Explanation:

White blood cells also known as leukocytes plays a very important role in maintaining the immunity of our body against foreign elements such as bacteria’s, viruses, pathogens etc.  

There are five type of white blood cell, namely –  

• neutrophils

• lymphocytes

• eosinophils

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Out of these five white blood cells, lymphocytes is responsible producing antibodies through its B and T cells that are produced in the bone marrow.

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3 years ago
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1.) muscles

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3 years ago
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What would happen to the amount of glucose and oxygen produced during photosynthesis if the amount of sunlight decreased?
Kruka [31]

Answer:

reduce drastically

Explanation:

The amount of glucose and oxygen produced during photosynthesis would reduce drastically if the amount of sunlight decreased. Photosynthesis reaction is dependent on light.

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4 0
3 years ago
Where do fossil fuel emissions come from? What is the main cause of pollution in general?
Eva8 [605]

Answer:

Most of the nitrogen oxides released in the U.S. due to human activity are from the burning of fossil fuels associated with transportation and industry. When fossil fuels are burned, they release nitrogen oxides into the atmosphere, which contribute to the formation of smog and acid rain.

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While discussing the various chemical properties of nutrients in the body, the class discusses that differences between anions a
choli [55]

Answer:

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Chloride is by large the major anion in the extracellular fluid.

Its concentration in blood plasma is around 98.00–107.00 (mM), in  cerebrospinal fluid (CSF) around 118.00–132.00 (mM) and in urine around 110.00–250.00 (mM); while the concentrations of bicarbonate (HCO3-), the second most abundant anion in blood is 22.00–29.00 (mM).

Chloride is the predominant extracellular anion. Chloride is a major contributor to the osmotic pressure gradient between the ICF and ECF, and plays an important role in maintaining proper hydration. Chloride functions to balance cations in the ECF, maintaining the electrical neutrality of this fluid.

*ICF = intracellular fluid

ECF = extracellular fluid

4 0
3 years ago
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