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
goldenfox [79]
3 years ago
15

What are the two energy laws that cannot be broken?

Biology
1 answer:
bearhunter [10]3 years ago
8 0
It can not be created or destroyed
You might be interested in
The structure that prevents backflow of blood into the left atrium is the . The vessel that carries oxygen-rich blood to tissues
iVinArrow [24]

Answer:

The structure that prevents backflow of blood into the left atrium is the mitral valve.

The vessel that carries oxygen-rich blood to tissues is the aorta.

The capillaries receiving blood flow from the left side of the heart are the Systemic capillaries.

The structure that is located anatomically between the aorta and the left ventricle is the Aortic semilunar valve.

Explanation:

The left atrium receives oxygen-rich blood from the pulmonary vein and passes it to the left ventricle. The back-flow of blood from the left ventricle into the left atrium is prevented by mitral which is a bicuspid valve. The vessel that carries oxygen-rich blood to tissues is the aorta.

Aorta receives oxygen-rich blood from the left ventricle and pumps it into its branches to deliver the blood to the body tissues. Systemic capillaries are the blood vessels that obtain the oxygen-rich blood from the left ventricle through the aorta. Systemic capillaries serve as the site for the exchange of gases and nutrients.

The aortic semilunar valve is located Aortic semilunar valve is the half-moon shape valve present between the left ventricle and aorta to prevent the black flow of blood to the left ventricle.

3 0
3 years ago
Why is laser lights so important for us? 6-7 sentences
andreev551 [17]
  1. Lasers can be used in surgical operation such as eye surgery because they are so precise.
  2. The laser can be used in microscopy to produce very clear visuals and study very minute substances.
  3. Lasers can be used in navigation also due to their precision hence reducing accidents
  4. We use lasers to scan barcodes in supermarkets
  5. Powerful lasers can also be used or security purpose for shooting down flying objects that can cause damage to humanity, such as missile and asteroids.
  6. A phenomenon called laser cooling has been used to trap an atom and assist in its study so scientists are able to understand the universe.

3 0
3 years ago
why do you think the tide pool has a much higher oxygen content then the ocean at 6:00 pm and then a lower one at 6:00 am?
bagirrra123 [75]
The waves of a seashore hit the sand, because of the moon the tide lowers and rises. when it lowers the tide pool only has some water and a lot of oxygen when the tide rises it has less oxygen.

6 0
3 years ago
Read 2 more answers
When the angle of a joint increases, it produces movement. Which type of movement is it? A. extension B. rotation C. flexion D.
Mandarinka [93]

Correct answer: A) Extension

Extension is a physical position that occurs when angle between the bones and the limbs of joint increases.

It takes place when there is a contraction of muscles and bones move the joint from a bent to a straight position, it is opposite of flexion, in which the angle between the bones and the limb at the joint decreases.

Example: During straightening of the leg, the angle between the tibia and femur increases, which shows extension has taken place.




8 0
3 years ago
Read 2 more answers
Each hereditary trait corresponds to?
vitfil [10]
What are the options
5 0
3 years ago
Other questions:
  • Give an example of a specialized leaf system that is adapted specifically to its environment and explain how it works.
    8·1 answer
  • Air masses move from areas with high pressure (such as the poles of the Earth) to areas with low pressure (the equator). The tem
    14·2 answers
  • Testing a hypothesis is called a(n) _____. control scientific law experiment variable
    6·2 answers
  • What part of the bacteria (in the picture) is used to move the cell around
    10·1 answer
  • Which element is capable of forming long chains by forming single, double, or triple bonds with itself? A) carbon B) hydrogen C)
    8·2 answers
  • The goal of all atoms on found on the Periodic Table is to become stable.<br> True<br> False
    10·1 answer
  • In the process of individuation, the developmental stage that is characterized by an innate tendency toward unity or wholeness i
    6·2 answers
  • What chemical produces an inflammatory reaction
    7·1 answer
  • Which of the following is a function of the cytoskeleton?
    14·1 answer
  • Make a lengthy note on AEROBIC and ANA-AEROBIC respiration,include equations where necessary and feel free to add pictures. Plea
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!