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
Arte-miy333 [17]
3 years ago
5

Describe two ways about the reasons why we learn about how the heart works in our body

Biology
1 answer:
Vladimir79 [104]3 years ago
8 0

Answer: 1 because you never know if your future dream job is to become a doctor. 2 the heart is very important.

Explanation: 1 you might want to be a teacher now but your interests grow and change. 2 it's very important to know about your heart, it's one of the most important parts of your body.

You might be interested in
Provide an example of one process that is a type of passive transport
Musya8 [376]

Answer:

An example of passive transport is diffusion, the movement of molecules from an area of high concentration to an area of low concentration. Carrier proteins and channel proteins are involved in facilitated diffusion.

Explanation:

5 0
3 years ago
How is the chromosome number reduced between meiosis I and meiosis II? a. crossing over c. two replications b. metaphase d. no r
solniwko [45]

The answer is; B

During metaphase I of Meiosis I , homologous sister chromosomes line up the metaphase plate in pairs. During anaphase I, the sister chromosomes of the pairs are separated and move to opposite poles. This way, the resulting daughter cells have half the chromosome number as the parent cell.

8 0
3 years ago
In rabbits, black fur (B) is dominant to white fur (b). A purebred black furred male is bred with a female that had the recessiv
ValentinkaMS [17]

Answer:

All the offsprings will be black-furred (Bb)

Explanation:

This question involves a single gene coding for fur length in rabbits. The allele for black fur (B) is dominant to the allele for white fur (b). This means that a rabbit heterozygous for this gene (Bb) will have a black fur.

According to this question, a purebred black furred male (BB) is bred with a female that had the recessive white fur (bb). The parents will produce gametes as follows:

BB - B only

bb - b only

Using these gametes in a punnet square (see attached image), the genotypic proportion of the produced offsprings is as follows:

Bb, Bb, Bb, Bb

All Bb (heterozygous) means that all of the offsprings will be black-furred.

8 0
3 years ago
Cardiac output is the amount of blood pumped by the heart in one minute. Which of these will increase cardiac output?
uranmaximum [27]

Answer: the factors that increase cardiac output include:

--> Nervous stimulation and

--> Hypertrophy of the heart.

Explanation:

Cardiac output can be defined as the quantity of blood pumped into the aorta each minute by the heart. This is also the quantity of blood that flows through the circulation. There are factors that can cause increased cardiac output or that can lead to a hypereffective heart. They are:

--> NERVOUS STIMULATION: The combination of sympathetic stimulation and parasympathetic inhibition does two things to increase the pumping effectiveness or cardiac output of the heart. These include:

• it greatly increase the heart rate from the normal level of 72 beats/mum up to 180 to 200 beats /mom.

• it increases the strength of heart contraction, which is called increased contractility to twice it's normal strength.

--> HYPERTROPHY OF THE HEART: A long term increased workload, but not so much excess load that it damages the heart, causes the heart muscle to increase in mass and contractile strength in the same way that heavy exercise causes skeletal muscles to hypertrophy. This effect of increased muscle mass of the heart, allows the heart to pump much greater than usual amounts of cardiac output.

6 0
2 years ago
Read 2 more answers
The formation of clouds is caused by which of the following
iris [78.8K]
Condensation is the formation of clouds.
4 0
3 years ago
Other questions:
  • A marathon runner frequently experiences muscle cramps while running. if he stops running and rests, the cramps eventually go aw
    14·2 answers
  • A student conducted an experiment to test whether talking to plants would help them grow faster. The student talk to one group o
    6·2 answers
  • When an object moves in a circle,_____ acts to accelerate the object towards the center of that circle
    14·2 answers
  • Which organism is most specialized? A. bacteria B. beetle C. grizzly bear D. amoeba
    8·1 answer
  • Which have the slowest apparent motion across the sky?
    11·2 answers
  • I need help with this question
    8·1 answer
  • What is this enzymes optimum temperature?
    8·2 answers
  • When is an ecosystem said to have high net primary productivity?
    14·1 answer
  • What is the correct order of the following layers, from youngest to oldest?
    11·1 answer
  • A scientist observes a cell under a microscope. He sees a nucleus, a cell wall,
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!