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jeka57 [31]
3 years ago
15

How do veins return blood to the heart? select all that apply?

Biology
1 answer:
Jobisdone [24]3 years ago
6 0
A relatively small blood pressure gradient is generally insufficient to move blood through the veins under given conditions, thus venous return must be facilitated by valves within veins and two "pumps." ... As skeletal muscles contract, veins are squeezed to help propel the blood toward the heart.
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State whether the following sentences are simple, complex or compound.​
sleet_krkn [62]

Answer:

ok

Explanation:

Simple sentences contains on independent clauses ,also called main clause ,that stands alone.

Complex sentences contains an independent clauses plus one or more dependent clause.

Compound Sentences contains two independent clauses joined with the coordinating conjugation and comma .AND IT'S ENGLISH QUESTION NOT OF BIOLOGY.

7 0
3 years ago
Symptoms of uric acid.​
irina [24]

Answer:

Elevated uric acid levels lead to a condition known as "Hyperuricemia."

Explanation:

This condition occurs when there is an excessive presence of uric acid in the blood. It can be divided into:

  • Primary hyperuricemia
  • Secondary hyperuricemia

Primary hyperuricemia occurs when the kidneys are not able to eliminate uric acid in an efficient/proper way. This can be due to the consumption of foos that are very high in purines. For example, liver, gravy, alcoholic beverages, and some vegetables such as spinach and asparagus.

Secondary hyperuricemia may occur to several possible reasons. For instance, kidney disease, in which the kidney is not able to eliminate uric acid; chemotherapy, which may lead to the accumulation of uric acids; or medications that increase the level of uric acid in the blood.

Symptoms include:

  • Fever.
  • Extreme and abnormal fatigue.
  • Joint inflammation.
  • Urination problems.
  • Kidney stones.

To prevent this disease and as part of a treatment (along with medications prescribed by a doctor), a patient should opt to consume foods that are low in purine, such as lettuce, tomatoes, cereals, fruits, milk, eggs, amongst others.

7 0
3 years ago
What does a body cell undergo?
Reil [10]

Answer:

body cell undergoes mitosis

8 0
3 years ago
Will give BRAINLIEST
kodGreya [7K]
I think that the correct answer to this question is D .
8 0
3 years ago
Read 2 more answers
How does acid rain affect an ecosystem?
Aleks04 [339]

Answer:

The ecological effects of acid rain are most clearly seen in aquatic environments, such as streams, lakes, and marshes where it can be harmful to fish and other wildlife. As it flows through the soil, acidic rain water can leach aluminum from soil clay particles and then flow into streams and lakes

Explanation:

Hope this helped <3

4 0
3 years ago
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