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Dominik [7]
3 years ago
13

What is a chemical element?

Biology
2 answers:
anygoal [31]3 years ago
7 0

an element on the periodic table

Serga [27]3 years ago
3 0

A chemical element is a species of atoms having the same number of protons in their atomic nuclei.

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Describe the means by which Hershey and Chase established that only the DNA of a phage enters an E. coli cell. What conclusions
ASHA 777 [7]

Answer:

Harshey and chase labeled T2 bacteriophage with radioactive sulfur and radioactive phosphorus. As DNA contains phosphorus, not protein and protein contain sulfur, not phosphorus, therefore, the presence of radioactivity in cell can determine which is the genetic material .

Then Harshey and Chase infected <em>E.coli</em> with T2 bacteriophage and centrifuged the cell. They found radioactive phosphorus in cell pellet and radioactive sulfur in supernatant.

So by this experiment, they concluded and proved that DNA is the genetic material that gets transfer from one generation to another.

6 0
2 years ago
Does a chameleon eat a frog?
Deffense [45]

Answer:

Explanation:

A chameleon will eat whatever it can fit in its mouth and then some. I'm sure they eat frogs in the wild, I don't think they know the difference between a frog or an insect just a food idem to them.

7 0
2 years ago
A large-mouth bass is taken from a fresh water lake and transplanted into the river. If the conditions for survival are optimal,
liberstina [14]
The cells will make some sort of reaction, there's no doubt about it. But for a bass I believe that their cells will stay the same or shrink over time.
Bass are strong fish and they usually do well when there's a change in conditions made in the environment. But it depends on what this river has in it and if it leads to bigger opened waters.
If there's a shortage of food sources for the bass it'll have to adapt quickly or it'll die from the predators in the area. If there isn't any places the Bass can lay their eggs (reproduce) its population will die in that river.
There also competition. In that river it could have socked eye salmon in it or catfish even pikes. So the Bass cells would stay the same.

Hope this helps
8 0
2 years ago
Plants use their ________________ to make glucose and their __________________ to break the glucose down to obtain ATP.
Arada [10]

Answer: Plants use their photosynthesis to make glucose and their chloroplast to break the glucose down to obtain ATP.

Explanation:

6 0
2 years ago
A student looks at a slice of tissue on an unlabelled microscope slide. the student concludes that the tissue is not from an ani
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2 years ago
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