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
Rama09 [41]
3 years ago
8

During a cardiac cycle, how many of the four chambers contract at any one time?

Biology
1 answer:
emmasim [6.3K]3 years ago
7 0
During a cardiac cycle, TWO of the four chambers contract at any one time. Cardiac cycle refers to the events that occur with every heart beat. The heart is divided into four chamber which are the right and the left ventricles an the left and the right atrium.
You might be interested in
Help Asap! 20 Points!
kompoz [17]

I think its b.

thank you

5 0
3 years ago
How do plants use carbon dioxide
svetoff [14.1K]

Explanation:

Plants use photosynthesis to capture carbon dioxide and then release half of it into the atmosphere through respiration. Plants also release oxygen into the atmosphere through photosynthesis.

if my answer helps you than mark me as brainliest

6 0
3 years ago
Read 2 more answers
Which best describes the kinds of questions science can answer
Alinara [238K]
Science can answer many questions for example the speed of light, the frequency of pitch or sound, dna tests
4 0
3 years ago
1. Scientific Question: How does the size of a brown anole lizard hatchling affect its chances of survival?
DiKsa [7]

Answer:

3

Explanation:

8 0
3 years ago
How does the escape velocity of venus compare to that of mars?
Olenka [21]
In physics, escape velocity is the speed where the kinetic energy of an object is equal to the magnitude of its gravitational potential energy. 
This relates to the speed at which an object should travel to "break" free of any gravitational pull.
Venus: 10.46 km/s
Mars: 5.027 km/s
4 0
3 years ago
Read 2 more answers
Other questions:
  • Lydia hypothesizes that warmer temperatures promote faster cell division. Which experimental design would best allow Lydia to te
    11·2 answers
  • The word carbohydrate is derived from carbon and water (hydrate). explain why this combination correctly describes this chemical
    12·1 answer
  • Symbiosis where only one organism benefits is called
    11·1 answer
  • Around _____ of women have severe vaginal or pelvic pain during sexual intercourse for up to one year after giving birth.
    5·2 answers
  • Lisa adds protein powder to her tropical smoothie. She believes the protein has enzymes that will improve the results of her car
    15·2 answers
  • Which statements explain the gas exchange that happens at the alveoli? Check all that apply.
    7·1 answer
  • How do photoautotrophs make energy?
    13·1 answer
  • the only people with Rh negative blood are people who have inherited two recessive alleles for this trait. But some people who a
    12·1 answer
  • Invasive insect species can cause severe damage to native trees and plants. Some insects bore into live trees and then get trans
    14·1 answer
  • Answer both parts in the screenshot.Whoever answers correctly or more accurate will get brainiest,5 star review and a thanks
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!