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
BRAINLIEST AND HURRRY !!!!!!!
krek1111 [17]

Answer;

petit arm

Explanation;

All human chromosomes have 2 arms, the p (short) arm and the q (long) arm. They are separated from each other only by a primary constriction, the centromere, the point at which the chromosome is attached to the spindle during cell division.

The symbol "p" stands for "petit", small in French, while "q" was chosen merely because it was the next letter in the alphabet.

3 0
4 years ago
Read 2 more answers
Plants produce all of the molecules they need for survival from inorganic compounds. Some elements, like nitrogen, come from the
olga55 [171]
Oxygon and Carbon from the atmosphere
6 0
3 years ago
Read 2 more answers
When does fetal erythrocyte production shift from the liver to the bone marrow?
vichka [17]

Answer: After seven months.

Explanation:

The blood carries various substances that must be transported from one part of the body to another. Red blood cells are an important component of the blood because their function is to carry oxygen to the body tissues and exchange it for carbon dioxide, which is carried and removed by the lungs.

Erythropoiesis is the process of red blood cell (erythrocyte) production. It is stimulated by a decrease in O2 in the circulation, detected by the kidneys, which then secretes the hormone erythropoietin. This hormone stimulates the proliferation and differentiation of red blood cell precursors, which triggers an increase in erythropoiesis in hematopoietic tissues and ultimately in the production of red blood cells. <u>In adults, red blood cells are formed in the red bone marrow.</u>

In early developing fetuses, erythropoiesis occurs in the mesodermal cells of the yolk sac. In the third or fourth month, erythropoiesis moves to the liver. After seven months, erythropoiesis occurs in the bone marrow.

6 0
3 years ago
Give an example of how migration affects population size?
il63 [147K]
Well, depending on how long the migration is, many of the animals (mainly birds) could get sick and die, lowering the population. They could be shot by hunters, lowering the population. The children of the population could get left behind and lose their way, lowering the population. I'm not entirely sure how the population could grow other than them finding and staying with another group of their own kind. hope I was helpful! :)
7 0
4 years ago
Which type of cells are being displayed?
dem82 [27]
Where are the cells ?
3 0
3 years ago
Read 2 more answers
Other questions:
  • Why chlorophyll appears green to us in
    12·1 answer
  • What nutrient does your body need to help move food through your digestive system?
    14·1 answer
  • When a plant generates food through photosynthesis, this food
    11·1 answer
  • Why is the sickness caused by trypanasomes called African sleeping sickness?
    13·1 answer
  • What is another name for rod shaped bacteria
    14·1 answer
  • How are most nutrients absorbed through the mucosa of the intestinal villa? A. facilitated diffusion B. bulk flow C. active tran
    5·1 answer
  • Fill in the blank.
    15·2 answers
  • What is a difference between men and women physically differences​
    9·1 answer
  • The components that make up the genetic code are common to all organisms. If a segment of a gene contains 27 nucleotides, none o
    9·1 answer
  • What are the three different ways living things consume energy and how are they labeled?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!