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zhannawk [14.2K]
3 years ago
15

What attracts dust and gas together to form stars?

Biology
1 answer:
SCORPION-xisa [38]3 years ago
5 0
<em /> I believe it's gravity.
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Membrane proteins serve many functions, one of which is transportation of substances across a membrane. If a cytologist placed c
morpeh [17]

Answer:facilitated diffusion

Explanation: facilitated diffusion us the carrier-mediated Transport of large molecules across the cell membrane using Transport proteins found in the cell membrane.such molecules include glucose,amino acids and ions.the passage across the membrane is from higher concentration to lower concentration

3 0
3 years ago
A student wants to answer the question "Does adding calcium powder to soil make pea plants grow faster?" She adds calcium powder
attashe74 [19]

Answer: the correct answer is A) All plants should be the same age and health and be given equal amounts of water and sunlight.

8 0
4 years ago
Scientists calculated the net primary productivity at two different forest sites. Both forests have the same gross primary produ
Katen [24]

Answer:

The answer is C.

Explanation:

Net Primary Productivity is a term that is used to express the difference between CO2 that is taken in by the plant with photosynthesis minus CO2 that the plant releases.

The two forest sites given in the example may not have the same biodiversity and the same species of plants so we can't be sure of option B.

Again for the same reasons, we can't be sure of option D because we do not know the specific plant species in each forest since they are in different areas.

Option A can be ruled out for the same reasons, the lack of information about the forest sites, since we do not know the death rate of the plants in either of the forests.

Option C can be true because forest A has a higher net primary productivity rate which can be an indication of lower respiratory activity hence lower CO2 production, resulting in the given higher net primary productivity.

I hope this answer helps.

4 0
4 years ago
I keep filling it in but keep loosing points ! I need help !
Alexxandr [17]
Ik this in spanish but i dont know how can i translate this

3 0
4 years ago
Comparing the forensic use of DNA fingerprinting and traditional fingerprinting produced by ink on a piece of paper, which fact
Marina CMI [18]

Answer:

The correct answer would be Both types of fingerprints can often be easy to obtain from the crime scene.

DNA fingerprinting is a technique used for a paternity test and in establishing a link between the biological evidence and suspect in the crime, identification of dead bodies et cetera.

It is based on the similarities and differences associated with the DNA sequence of organisms especially the non-coding or junk DNA.

The DNA fingerprints are developed in labs, they are not found at crime scenes.

At the crime scene, pieces of biological evidence such as blood, skin, hair et cetera are taken from which DNA could be extracted.

5 0
4 years ago
Read 2 more answers
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