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bija089 [108]
3 years ago
11

What is hypertension and what are some factors that affect it?

Biology
1 answer:
tigry1 [53]3 years ago
5 0
A condition in which the force of the blood against the artery walls is too high.
Usually hypertension is defined as blood pressure above 140/90, and is considered severe if the pressure is above 180/120.
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What are the four main parts of the female reproductive system?
rusak2 [61]
The female internal reproductive organs are the vagina, uterus, Fallopian tubes, and ovaries.
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5 0
3 years ago
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Turtles and leopards all have four limbs and an amnion. True The common ancestor of lamprey and lancelets had a vertebral column
kramer

Answer:

Explanation:

The objective is to conclude if the statements are true or false based on facts.

1)\text{ Turtles and leopards all have four limbs and an amnion.  } True

2) \text{The common ancestor of lamprey and lancelets had a vertebral column. } False

This is because their ancestor is a Chordate who doesn't have a vertebral column but a notochord.

3) True

\text{Frogs are the sister taxa of turtles and leopards because they are more }

\text{related to a common ancestor.}

4) \text{Leopards and bass are more closely related than turtles and bass}  False

This is because the bass is a fish that possess some characteristics traits related to an amphibian (turtle) as compared to a mammal(leopard).

5) \text{The taxon that shares the most recent common ancestor with frogs is the bass.} False

The taxa of turtles share a more common ancestor with frogs compared to bass.

6) \text{Leopards and lancelets have no common ancestor. } False

The common distant ancestor for leopards and lancelets is known as  Chordates

4 0
3 years ago
Very rapid (i.e. in 1-2 seconds) responses to maintain normal blood pressure during a sudden decrease in blood volume by hemorrh
Tatiana [17]

Answer:

vasoconstriction of capillaries.

baroreceptors in the aortic arch.

Explanation:

Vasoconstriction of capillaries and baroreceptors in the aortic arch are the two quick responses of body to maintain normal blood pressure during hemorrhage. Vasoconstriction is very necessary for lowering acute blood loss during hemorrhage means escape of blood from a ruptured blood vessel as well as maintain body heat and arterial pressure. The function of baroreceptors is to respond to the change in the tension of the arterial wall when blood pressure changes.

7 0
3 years ago
what is the relationship between exposing to a virus and developing immunity to it? cite evidence from the text to support your
den301095 [7]

Answer:

Exposure to a virus is closely related to the development of immunity, since the immune system is responsible for creating antibodies in response to the presence of potentially harmful biological agents, such as these viruses.

Explanation:

Viruses are biological agents that can produce diseases when they enter the body of a living being.<u> In response to contact with a virus, the</u><u> immune system</u><u> synthesizes specific </u><u>antibodies</u> to combat the foreign biological agent.

Antibody immunity can be of two types. It is fast when it is mediated by immunoglobulins M (IgM), which attack the virus anywhere, while the late and prolonged response is due to the development of immunoglobulins G (IgG).

An example of immunity to a virus occurs with the exhibition to the virus of the Dengue, that creates permanent immunity to the viral serotype to which an individual is exposed.

The acquired immunity, mediated by antibodies, is the base for the development of vaccines.

8 0
3 years ago
Gaps in the myelin sheath are called
jeyben [28]
The gaps (approximately 1 micrometer wide) formed between myelin sheath cells long the axons are called Nodes of Ranvier. Since fat serves as a good insulator, the myelin sheaths speed the rate of transmission of an electrical impulse along the axon.
4 0
3 years ago
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