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inna [77]
3 years ago
5

Jill stepped on a tack. Which part of the central nervous system caused her foot to move off the tack quickly in a reflex respon

se?
Biology
2 answers:
Mkey [24]3 years ago
3 0
The danger receptor is called nociceptor; this signals the brain to pull the injured part away from danger. Signal travels to the posterior or dorsal horn of spinal cord.
Kamila [148]3 years ago
3 0

Answer: spinal cord

Explanation:

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They check for mistakes and bias
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Differentiation occurs when: the sperm and ovum meet. cells begin to specialize. the combined material from both gametes meshes
musickatia [10]

Answer:

The correct answer is option - cells begin to specialize.

Explanation:

Embryonic differentiation is a process in which the cell begins to divide and to be destined to make a specific cell line different from another cell. Each differentiated cell has fate to perform a specific function in later development in the body.

The embryonic cell differentiation takes place when the cell begins to specialize which is occurs after the cleavage of a zygote which triggers the differentiation process.

Thus, the correct answer is option - cells begin to specialize.

3 0
3 years ago
There are more primary producers than what
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Answer:

Primary Consumers.

Explanation:

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2 years ago
Nucleotides can be radiolabeled before they are incorporated into newly synthesized DNA and, therefore, can be assayed to track
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Answer:

e. infection causes lymphocytes to divide more rapidly

Explanation:

The cell cycle includes interphase and M phase which in turn together produce daughter cells from the existing parent cells. DNA replication occurs during the S phase of interphase to ensure that the daughter cells obtain the identical DNA present in the parent cell.

Lymphocytes are one of the types of white blood cells and are involved in cell-mediated and antibody-mediated immune responses. These cells are present in the blood as well as in lymphatic tissues. During the given experiment, lymphocytes exhibited a higher rate of incorporation of labeled nucleotide after the introduction of a pathogen in the culture. This suggests that the introduction of pathogen triggered the cell division in lymphocytes to produce more lymphocytes to fight the infection.

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True or False: Some Greenhouse gases are naturally present in the Earth's atomshpere.
ElenaW [278]

Answer: True.

Explanation: Many greenhouse gases occur naturally in the atmosphere, such as carbon dioxide, methane, water vapor, and nitrous oxide, while others are synthetic.

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