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faltersainse [42]
3 years ago
10

Members of which of the following groups of organisms have an internal skeleton?

Biology
1 answer:
kicyunya [14]3 years ago
3 0
Sea stars I hope this helps somewhat ^^;

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This diagram shows the menstrual cycle.
LiRa [457]

Answer:

According to the hormone diagram of the menstrual cycle, the woman is not pregnant due to the behavior of progesterone and estrogens, whose levels do not increase, in addition to the absence of human chorionic gonadotropin.

Explanation:

The graph shows the behavior of hormones during a woman's menstrual cycle in the absence of pregnancy.

During a woman's normal cycle, estrogen, luteinizing hormone (LH) and follicle stimulating hormone (FSH) tend to increase prior to ovulation, reach their peak values at ovulation, and then decline, as shown in the graph. Progesterone, on the other hand, increases after ovulation and decreases if the woman does not become pregnant.

In the case of a pregnant woman:

  • <u>Estrogens</u> continue to increase after ovulation, produced by the ovaries and placenta.
  • <u>Progesterone</u> also increases its levels, as it is a hormone produced by the ovaries and placenta.
  • <u>Hormone human chorionic gonadotropin</u> (HCG) appears and increases during pregnancy, due to the secretory activity of the placenta.

<em><u>The diagram represents the normal cycle of a woman who is not pregnant</u></em>.

4 0
3 years ago
What type of organism uses cellular respiration for their cellular energy needs?
suter [353]

Answer: Oxygen is required for cellular respiration and is used to break down nutrients, like sugar, to generate ATP (energy) and carbon dioxide and water (waste). Organisms from all kingdoms of life, including bacteria, archaea, plants, protists, animals, and fungi, can use cellular respiration.

Explanation:

8 0
3 years ago
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Please help Which one of the following is a characteristic of cancer cells?
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C. they result in uncontrolled growth 
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What effect does an existing soil presence have on theseralstages ofsecondary succession and the time it takes toreturn tothe cl
Ahat [919]
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7 0
3 years ago
Place in order the correct sequence by which water flows through plants
kotykmax [81]

Answer:

The correct sequence is - 2, 3, 4, 1.

Explanation:

The movement of the water takes place in the plant from the soil and moves up to leaves and from there to the atmosphere. Root hairs help in the absorption of the water from the soil with help of the epidermis of root hairs. Water then takes the path from the root to the stem with help of cortical cells.

Once the water reaches the endodermis or endodermal cell the water freely flow in the xylem cell upwards the stem moves to leaves by the transpiration stream. In the process of transpiration, an excess amount of water evaporates into the atmosphere.

8 0
2 years ago
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