1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alecsey [184]
3 years ago
13

PLEASE I REALLY NEED YOUR HELP I´LL GIVE BRAINLIEST

Biology
2 answers:
Nataly [62]3 years ago
6 0

Answerits its d

Explanation:

i took that test

erma4kov [3.2K]3 years ago
4 0

Answer:

D the train

Explanation:

The train is safe very fast and was the first built

You might be interested in
An ultrasound machine is being used to try to identify potential kidney stones. The machine is working properly an no kidney sto
saveliy_v [14]
The machine found no kidney stones and the patient is healthy 
7 0
3 years ago
The interpretation of sensory information is called _____.
Goshia [24]
Hello friends

Perception...

Hope this helps you.
3 0
3 years ago
Angiotensin II is a potent ____________ that helps regulate blood pressure. Angiotensinogen, is an inactive hormone synthesized
Hatshy [7]

Answer:

Angiotensin II is a potein VASOCONSTRICTOR that helps regulate blood pressure. Angiotensinogen, is an inactive hormone synthesized and released continuously from the LIVER. Its activation, which occurs within the BLOOD, is initiated by the enzyme renin. Renin is released from the juxtaglomerular apparatus of the KIDNEYS in response to either (1) LOW blood pressure (as detected by decreased stretch of BARORECEPTORS within granular cells, or by decreased NaCl detected by CHEMORECEPTORS within macula densa cells); or (2) stimulation by the SYMPATHETIC  division. The sequential action of renin and angiotensin converting enzyme (ACE) causes the formation of angiotensin II (the active form of the hormone).

Explanation:

Angiotensin is a peptide hormones that regulate blood pressure by causing increase in blood pressure through vasoconstriction. It is a part of the renin- angiotensin system that regulate the internal pressure of the blood. It is stimulated when the level of blood pressure reduces or there is an decrease in the sodium chloride in the blood. It effects is to vasoconstrict the blood vessels thereby increasing the blood pressure in the vessels. Angiotensinogen is the inactive hormone synthesized by the liver and upon activation through baroreceptors or chemoreceptors, the liver releases angiotensinogen into the blood stream to be ctivated by the enzyme secreted from the kidney's juxtaglumerular apparatusand then activated to teh angiotensinogen I, angiotensinoI is then activated into angiotensin II by the angiotensin II by the angiotensin converting enzyme. Angiotensin also causes the increase in the aldosterone secretion from the adrenal cortex to promote the retention of sodium by the kidneys, this also helps to increaee the blood pressure. Various receptors helps in signalling the body to a reduced blood pressure level. This includes the baroreceptors which are pressure receptors and detect changes in pressure of the blood; chemorecptors which are chemical receptors that detect the change in the concentration of sodium and chloride ion in the blood. All this function together with the sympathetic division of the CNS to help the body regulates its change in blood pressure in a given time.

3 0
3 years ago
What transports electrons from the light reactions to the calvin cycle?
ale4655 [162]

Answer:

NADPH

Explanation:

What transports electrons from the light reactions to the Calvin cycle? NADPH is an electron carrier that picks up electrons in the light reactions and releases them in the Calvin cycle. ... The Calvin cycle is a complex series of chemical reactions carried out in the stroma. there you go

7 0
3 years ago
Atmosphere is a mixture of two things
bekas [8.4K]

Answer: yes

Explanation:

It's a mixture of different gases. The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.

8 0
3 years ago
Other questions:
  • What are the waste outputs of a animal cell?
    14·1 answer
  • Someone is sniffing near Grumpy’s front door. Can you help Grumpy identify the Ragdoll in this picture!
    12·2 answers
  • Suppose a gene has three exons, with 570 nucleotides in exon 1, 420 in exon 2, and 810 in exon 3. there is a variant in which ex
    8·1 answer
  • Which of the following terms is used to describe several planets orbiting a star?
    5·2 answers
  • What is a gene?
    7·2 answers
  • WILL GIVE BRAINLYEST
    6·1 answer
  • Listeriosis is of particular concern for pregnant women because pregnant women are more likely than other population groups to g
    10·1 answer
  • How many codons equals 1 amino acid?
    6·1 answer
  • PLEASE HELP. WILL GIVE BRAINLIEST. What role do decomposers play in an ecosystem? Be sure to refer to the biogeochemical cycles.
    9·1 answer
  • Directions: Answer the questions below.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!