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
tiny-mole [99]
3 years ago
14

I need help what’s this. it’s about heart rate

Biology
1 answer:
spin [16.1K]3 years ago
5 0

Answer:

During exercise, your heart typically beats faster so that more blood gets out to your body. Your heart can also increase its stroke volume by pumping more forcefully or increasing the amount of blood that fills the left ventricle before it pumps.

You might be interested in
Can someone help me with this
disa [49]

Answer:

1: B

2: C

3: D

4: D

5: B

6: C

7: A

Explanation:

Alleles: alternative forms of a gene

Gametes: sex cells that are the product of meiosis

Genes: unit of hereditary, made up of DNA

Traits: specific characteristic of an organism

8 0
3 years ago
Read 2 more answers
What frog system is the most differnt from the human system
Anna71 [15]
The central nervous system of the frog is different from that of humans; if the optic nerve of a frog is cut, the animal will be able to see again within weeks but the same damage in humans would cause permanent blindness :).
5 0
3 years ago
How do radiation and chemotherapy affect cancer cells?
elixir [45]

Answer:

They destroy the DNA or RNA

Explanation:

Cancer drugs work by damaging the RNA or DNA. The faster the cancer cells divide, the more likely it is that chemotherapy will kill the cells, causing the tumor to shrink. They also induce apoptosis. Radiation therapy is a cancer treatment that uses high doses of radiation to kill cancer cells and shrink tumors. The radiations also induce apoptosis. Cancer cells whose DNA is damaged beyond repair stops dividing and die. The damaged cells die, they are broken down and removed by the body.

7 0
3 years ago
Sea turtles dig holes on coastal
Diano4ka-milaya [45]

Answer:

the question is not finished amigo

7 0
3 years ago
Read 2 more answers
Why do plant cells need a cell wall but animal cells do not
morpeh [17]
Cell walls are rigid which gives plants their shape. Animals have only cell membranes which allows animals to be flexible as animals are moving organisms. Plants, on the other hand, are sturdy and upright and are sessile organisms. Cell walls allow plants to grow upright as high as their maximum height and to be sturdy enough to survive harsh environments.
6 0
3 years ago
Other questions:
  • What use do u think extracting DNA might have today
    14·2 answers
  • Which of the following correctly describes the importance of the nitrogen cycle?
    8·2 answers
  • A chemical bond resulting from the loss or gain of electrons and the subsequent attraction of oppositely charged atoms
    5·1 answer
  • What factor does not contribute to the limited vegetation in the tundra? A) limited carbon dioxide supply B) nutrient poor soil
    11·2 answers
  • Compare the structure of a typical prokaryotic cell with that of a typical eukaryotic cell. What structures would you find in bo
    14·1 answer
  • The At which point in the eukaryotic cell cycle does mitosis occur? Shows the
    13·1 answer
  • What statement best explains the change over the 10 year period?
    11·1 answer
  • 6. What is the term that refers to the amount of a crop produced?
    11·2 answers
  • Many scientists worked together to form a realistic model of the structure of the DNA molecule.
    6·1 answer
  • where does urine comes from? kidney stores the urine, and intestine digest it right? in the human body, the kidney is behind the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!