Which mechanism of cellular transport moves substances against a concentration gradient and requires the use of energy?

Susan sat out in the sun watching a baseball game. she developed small blisters on her unprotected shoulders and neck. what type

adelina 88 [10]

The correct answer is second-degree burn.

There are three types of burns based on the severity of damage to the skin:

• First-manifested by red, nonblistered skin

• Second-characterized by blisters and thickening of the skin

• Third-degree-thickness with a white, leathery appearance.

3 0

2 years ago

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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:

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

The diagram represents the normal cycle of a woman who is not pregnant.

4 0

2 years ago

Why is it important that scientists haven’t identified a lokiarcheota as a cell yet?

ANTONII [103]

It's important because we need the scientists to discover where it is. the lokiarchaeota is a main cause for infections, and diseases, and if we identify it, and study it, we may know how to cure certain diseases, and how to prevent them.

7 0

2 years ago

hen reproducing, Robins (a species of bird) typically lay four eggs. Laying more eggs might result in malnourished chicks and la

Anika [276]

Answer:

In favourable environments you might find birds laying more eggs, and a greater likelihood of multiple successful clutches. There are also birds like Bald Eagles, that start mating in early January and can lay eggs before Spring officially comes. 13. Food Availability. The amount of food available has an affect on bird mating cycles.

Explanation:

3 0

2 years ago

Select all that apply. which of the following are things you can do to reduce pollution? purchase products made from recycled ma

k0ka [10]

Purchase products made from recycled material
Recycle used Products
and
Walk instead of drive

Driving releases pollutants in the air and when we use gas and oil we are using lots of our natural resources and cutting them down day by day.

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2 years ago

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