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
Montano1993 [528]
2 years ago
5

The heart contracts twice for every heartbeat one contraction is the atrial contraction while the other is the venture true or f

alse
Biology
1 answer:
jeyben [28]2 years ago
8 0

Answer:

True. The heart contracts twice per heartbeat. One contraction is the ventricular and the other one is the artrial.

You might be interested in
Transcribe the following (DNA ⇒ mRNA);<br><br> GCG TAT GGC
damaskus [11]

Answer:

CGC AUA CCG - RNA

CGC ATA CCG - DNA

Explanation:

Uracyl (U) is present in RNA instead of Thymine (T)

Also opposite RNA/DNA molecules pair with each other.

Adenine pairs with Uracyl (RNA)/Thymine (DNA)

Cytosine pairs with Guanine (both RNA & DNA)

8 0
1 year ago
What are organic compound needed for living things
madreJ [45]
Porteins, among the most complex of all organic compounds.

6 0
3 years ago
Which of the following statements is not true of the circulatory system and its transport of nutrients?
Vladimir [108]

Answer: b. Nutrients that leave the small intestine via blood are delivered first to the liver.

Explanation:

Lymph is a clear fluid that leeks out from the interstitial spaces of the cells and this comprises of electrolytes, blood proteins, and antibodies. It is pushed towards the heart from the lymphatic vessels. The nutrients from the small intestine are drained into the bloodstream and they are circulated to all parts of the body and not directly destined towards the liver.

5 0
3 years ago
What is the composition of earth’s ocean waters and where are they located
WINSTONCH [101]

Explanation:

Seawater is a complex mixture of 96.5 percent water, 2.5 percent salts, and smaller amounts of other substances, including dissolved inorganic and organic materials, particulates, and a few atmospheric gases.

hope this helps!!

8 0
3 years ago
5. Which is not one of Darwin's four main ideas of natural selection?
Lesechka [4]
The answer should be b


3 0
3 years ago
Read 2 more answers
Other questions:
  • 1. What muscle is directly beneath the biceps?
    13·1 answer
  • Which of the following is an example of technology influencing science? The invention of the electric motor after the discovery
    7·2 answers
  • John has been studying classification in class. He learned that Aristotle was the first to classify organisms. Aristotle classif
    12·1 answer
  • Brings dry, clear weather
    5·1 answer
  • Why might the population of prey increase over time, while the population of predators remains high?
    13·1 answer
  • What is not an ocean resource ?
    10·1 answer
  • An attempt to explain observations of the natural world is
    10·1 answer
  • Movement of liquid or gas particles from a high to a low concentration
    11·2 answers
  • The principle that the geologic processes that we see today have occurred throughout Earth’s history is called____.
    9·1 answer
  • Plsss help me Asap!!!!​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!