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ziro4ka [17]
3 years ago
5

Aldosterone stimulates an increase in sodium reabsorption at the same time it stimulates an increase in potassium secretion. ald

osterone stimulates an increase in sodium reabsorption at the same time it stimulates an increase in potassium secretion.
a. True
b. False
Biology
1 answer:
Katarina [22]3 years ago
7 0
A. True
Aldosterone stimulates the Na+/K+ pump in renal tubules to exchange Na+ (sodium) for K+ (potassium). This, using ATP energy for active transport, leads to reabsorption of sodium into the bloodstream and secretion of potassium into the urine.
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In the 1990’s, scientist showed that Archaea and Bacteria are very different groups of organisms. How did the impact the classif
Nataliya [291]
B. The levels of classification increased. Previously there were only 2 domains of life, Bacteria and Eukarya, but an additional domain and Kingdom were added when the distinction of Archaea was observed.
4 0
3 years ago
Which description properly describes the plant structures involved in photosynthesis?<br><br>​
Nonamiya [84]

Answer:

C Phloem transports glucose to the plant, and stomata release oxygen

Explanation:

A Stomata take in water,sunlight, and carbon dioxide and release oxygen  - this is false, the stomata are for gas exchange (taking in carbon dioxide and releasing oxygen). They do not take in water and sunlight

B Phloem transports water, stomata take in carbon dioxide, and chlorophyll absorbs sunlight - this is false, while it is true that stomata take in carbon dioxide, and chlorophyll absorbs sunlight. phloem does not transport water, that is the xylem.

C Phloem transports glucose to the plant, and stomata release oxygen - this is true. Stomata takes in carbon dioxide and releases oxygen, and phloem transport the products of photosynthesis throughout the plant

D Xylem takes in water, sunlight and carbon dioxide and releases oxygen - this is false. Xylem does take in water, but not sunlight, carbon dioxide or oxygen

4 0
3 years ago
While hiking, you must push aside thick branches that are near your face. One of them rips the skin on your arm and you begin to
matrenka [14]

Answer:

While hiking, you must push aside thick branches that are near your face. One of them rips the skin on your arm and you begin to bleed from the cut. Which of the following plays an important role in initially protecting you from infection?

The answer to the question is option D (barriers such as dead skin cells and mucus because they are part of the innate immune system)

Explanation:

Hiking which is a way to stay physically active can simply be explained as an engage in a leisure-like activity, to walk a long distance or for exercise.

Innate immunity is one of the two main immunity strategies found in vertebrates, is composed of physical, chemical and cellular defenses against pathogens,  such as skin, chemicals in the blood, and immune system cells that attack foreign cells in the body immediately or within hours of an antigen's appearance in the body.

The innate immune system relies on the recognition of particular types of molecules that are common to many pathogens but are absent in the host.

Innate immunity, is something already present in the body which is activated against a specific type of antigen, and the immunity remains throughout the life.

An example of Innate immunity, is the white blood cells fighting bacteria.

Innate Immunity action is usually rapid, and the first line of defense against non-self pathogens is the innate immune response.

Innate type of immunity is generally inherited from parents and passed to offspring.

The main purpose of the innate immune response is to immediately prevent the spread and movement of foreign pathogens throughout the body.

Therefore, during the first critical hours and days of exposure to a new pathogen, the body rely on the innate immune system to protect it from infection.

The skin and other epithelial surfaces, provide a physical barrier between the inside of the body and the outside world.

The mucus layer also contains substances that kill pathogens or inhibit their growth.

Microorganisms do occasionally breach the epithelial barricades. It is then the innate immune system that recognizes and destroy them, without harming the host.

3 0
3 years ago
What value does the prefix milli stand for
uranmaximum [27]


it is thousandths

0,001

3 0
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Why do conservationists sometimes purposely set a forest fire?
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Conservationists occasionally light forests on fire to control wild fires. By occasionally burning material (like leaves, branches, etc), those materials cannot build up and cause large and uncontrollable fires later.
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