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IgorLugansk [536]
3 years ago
5

Help me with this pls :)

Biology
2 answers:
ryzh [129]3 years ago
6 0

Answer:

Elements have the same number of valence electrons

Columns 1-18 on periodic table

Elements have similar characteristics

Luba_88 [7]3 years ago
5 0
Elements have the same number of valence electrons, Elements have similar characteristics, Columns 1-18 on periodic table
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The white mater is composed of
ratelena [41]

Answer:

The correct answer is option A.

Explanation:

White matter is the component of CNS which consist neuron cell bodies or myelinated cell axons or nerve fiber collectively known as fiber tracts mainly. Glial cells also one of the component of white matter, made up of few sulci and gyri. White matter makes superficial regions of the spinal cord and deep parts of the cerebrum.

The neuron cell bodies of white matter sends signals to neurons and each other. White matter regulates the action potentials function as coordinators in between brain parts.

Thus, the correct answer is option A.

4 0
3 years ago
A ____ detects a parameter change in a feedback model.
rewona [7]

<u>Answer:</u>

Receptors

<u>Explanation: </u>

Receptors are specific for the particular parameter . They work to detect change and convert the change into signals that serves as a afferent input to the control center.

Negative feedback requires a receptors,control center, and a afferent. Generally a receptor monitors internal conditions. Receptors sense changes in function and initiate the body's homeostatic response.

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3 years ago
Meiosis consists of _________ division(s) of the nucleus.
Mila [183]

Answer:

the answer is two for this question

7 0
3 years ago
Genes contain instructions for assembling Question 56 options: a. purines. b. nucleosomes. c. proteins. d. pyrimidines.
sergejj [24]

Answer:

c. Proteins

Explanation:

A stretch of DNA that code for specific proteins is said to be a gene. A gene is transcribed into mRNA. The mRNA has a nucleotide sequence complementary to the corresponding gene. The nucleotide sequence of mRNA is read in the form of genetic codes during the process of protein synthesis to specify the amino acid sequence of proteins. Therefore, genes carry the genetic information for the assembly of proteins and the processes of transcription and translation deliver the stored genetic information.

4 0
3 years ago
Read 2 more answers
What happens to an enzyme when it performs its function? What does this mean about enzyme molecules??
ratelena [41]
1. Enzyme interacts with substrate
. 2. Enzyme may undergo a conformational change to capture the substrate ("induced fit" model)
3. Enzyme-substrate complex may undergo several changes to form the product(s).
4. The product(s) are released
. 5. The enzyme returns to its original form. It is then ready to do the cycle all over again.
3 0
4 years ago
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