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svp [43]
3 years ago
15

What happens during S phase?

Biology
1 answer:
olganol [36]3 years ago
4 0

Answer:

B is the correct one.

Explanation:

B. DNA separates into two nuclei

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8. How is penicillin used?
Tom [10]

Answer:

O to kill bacteria that cause disease

Explanation:

penicillins are a group of antibiotics used to treat a number of bacterial infections.

hope this helps!

5 0
3 years ago
You weigh two different objects on the same scale in the same location on Earth. The weights are different. What must be differe
ira [324]
C. mass. Because well it just is
8 0
3 years ago
Read 2 more answers
What role does oxygen play in a plants life?
aleksandrvk [35]
Plants need oxygen to survive , no oxygen mean the plant will diePlants do need oxygen to survive. They respire (take in oxygen, give off carbon dioxide) the same way that animals do. The difference is that during the day, plants also perform photosynthesis, in which they take in carbon dioxide and give off oxygen.Plants require oxygen for respiration to carry out their functions of water and nutrient uptake. In soil adequate oxygen is usually available, but plant roots growing in water will quickly exhaust the supply of dissolved oxygen and can be damaged or killed unless additional air is provided. A common method of supplying oxygen is to bubble air through the solution. It is not usually necessary to provide supplementary oxygen in aeroponic or continuous flow systems.Oxygen is vital ingredient in plant survival
6 0
3 years ago
An atom with 9 protons and 8 electrons is what kind of atom?
Reika [66]

Answer:

B. A cation

Explanation:

An atom is the smallest indivisible component of a matter including an element. An atom contains three particles called SUBATOMIC PARTICLES (PROTON AND NEITRON in the nucleus and ELECTRON surrounding the nucleus). The proton is positively charged while the electron is negatively charged.

The number of protons and electrons determine whether an atom will be postively charged (cation) or negatively charged (anion). In this question, an atom with 9 protons and 8 electrons will be A CATION because the protons (9) are more than the electrons (8), hence, making it a positively charged atom (cation).

N.B: The cation atom will have a +1 charge

7 0
4 years ago
Sort words and phrases related to foliated and non-foliated rocks into the correct categories.
Mashcka [7]

Answer:

Foliated: slate, forms in layer, splits along bands

Explanation:

Non-foliated: forms in random arrangement, quartzite, doesn’t split into layers

7 0
3 years ago
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