Answer:
A
Explanation:
The respiratory system allows for gas exchange, water and heat balance, and creation of sound and speech. I just took quiz and this 1 was right.
Answer:
Animals perform cellular respiration.
Explanation:
As plants release Oxygen through the process of photosynthesis, animals use this oxygen (as well as other inputs) to perform cellular respiration which releases Carbon Dioxide. Cellular respiration helps animals get the energy from sugar converted into more simple molecules such as ATP (Adenine Triphosphate).
Answer:
B. Nebula
Explanation:
A solar system, an asteroid, and a galaxy is not made of dust and gas. But a nebula is made of dust and gas
Since you provide no options, here are the usual parts of scientific method :
- Idea / question which answer you want to find out
- Research , collecting all kinds of data
- Hypothesis , an explanation that is made at the starting point, before the experiment
- Experiment , to find out whether your hypothesis is right
- Analyze the data that you got from the experiment
- Conclusion, your final judgement based on the result of your experiment
Answer:
Ribosomes
Explanation:
Ribosomes are used in cells for growth and repair they are held in the cytoplasm of the cell not the nucleus therefore they are never in contact with dna