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Leokris [45]
3 years ago
13

Question 7 in the attachment, please help thank you so much!

Biology
1 answer:
sertanlavr [38]3 years ago
5 0

Answer:

Here are the answers:

a. 4  Cell determination as an issue in the *rest is missing*

b. 4  They assumed that different ways of separating an embryo into two parts would be equivalent as far as the fate of the two parts was concerned.

c. 4  I and III only

Explanation:

The passage demonstrates the importance of two factors in the development of an embryo: cleavage planes of division of embryonic cells and cell differentiation.

Cleavage Planes:

Cleavage basically refers to the division of the zygote into a large number of cells called blastomeres. Cleavage planes are geometrical lines or orientations along which cleavage takes place. Since, all embryonic cells are the precursors of some type of body cells, the cleavage planes determine if the cells are adequate for growth and development.

Cell Differentiation:

Cell differentiation is the transition of an undifferentiated cell into a specialized one. For example, stem cells are undifferentiated cells that develop into progenitor cells that mature into a specific cell lineage. For an embryo to regenerate, the presence of adequate embryonic stem cells is crucial. Embryonic stem cells are present in abundance before the gastrulation phase of embryonic development, after which they rapidly start differentiating.

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I will give out 90 points. Please answer!!
34kurt
The answer is number 4 hope this helps
5 0
2 years ago
What molecule is used to store and release energy in cells
grin007 [14]

Answer:

Adenosine triphosphate

Explanation:

Adenosine triphosphate (ATP) consists of an adenosine molecule bonded to three phophate groups in a row. In a process called cellular respiration, chemical energy in food is converted into chemical energy that the cell can use, and stores it in molecules of ATP.

6 0
2 years ago
What is mutation how can it change in an amino acid sequence damage the protein
Tpy6a [65]
The outcome of a frameshift mutation is complete alteration of the amino acid sequence of a protein. This alteration occurs during translation because ribosomes read the mRNA strand in terms of codons, or groups of three nucleotides. These groups are called the reading frame.
4 0
2 years ago
igh levels of cortisol would normally provide negative feedback to the _______. High levels of cortisol would normally provide n
alexandr1967 [171]

High levels of cortisol would normally provide negative feedback to the D)the anterior pituitary and the hypothalamus.

ACTH secretion stimulates the discharge of glucocorticoids (cortisol), mineralocorticoids (aldosterone), and androgen from the adrenal cortex.

Corticotropin-liberating hormone (CRH) is launched from the hypothalamus, which stimulates the anterior pituitary to release adrenocorticotropic hormone (ACTH). ACTH then acts on its target organ, the adrenal cortex.

Cortisol increases blood sugar by way of releasing stored glucose, at the same time as insulin lowers blood sugar. Having chronically high cortisol stages can result in continual high blood sugar (hyperglycemia). this can purpose type 2 diabetes.

Learn more about the hypothalamus here brainly.com/question/1022285

#SPJ4

6 0
2 years ago
Does each part of the cell work alone? explain your answer
Vanyuwa [196]

Answer:

No they don't,they have to work together for an organ to function.  they have to work together for the body to work alone

Explanation:

hope this helps

3 0
3 years ago
Read 2 more answers
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