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Semenov [28]
2 years ago
8

Can someone please explain what gives air its weight?

Biology
1 answer:
maks197457 [2]2 years ago
4 0
Simple. Air has mass. And if air has mass it also has weight. You can feel air when the wind blows. Or do an experiment. Weigh an empty container. Then pump it to a vacuum. Weigh it again. The difference is the weight of the air inside. 
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True or false? investigators trying to track the early spread of hiv found hiv-infected blood samples from as early as 1956, in
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False  
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3 0
3 years ago
During Cellular Respiration what is used to create energy?
melomori [17]
Glucose and oxygen react together to produce energy.
6 0
3 years ago
Classify each statement based on whether it describes prokaryotes only, eukaryotes only, or can describe both prokaryotes and eu
Phantasy [73]

Answer:

unicellular - both prokaryotes and eukaryotes

contain mitochondrion - eukaryotes only

are generally less than 2 pm - Prokaryotes only

multicellular - eukaryotes only

lack membrane-bound organelles - prokaryotes only

Explanation:

Prokaryotes are generally unicellular, that is, they are made up of single cells only. However, there are unicellular and multicellular eukaryotes with some eukaryotes like humans and advanced plants having as many as millions of cells.

Prokaryotes generally lack nucleus and other membrane-bound organelles such as chloroplast and mitochondrion. Eukaryotes on the other hand have nucleus and membrane-bound organelles such as mitochondrion and chloroplast.

When it comes to size, prokaryotes are generally small and microscopic while eukaryotes consist of both microscopic and macroscopic cells or organisms. However, prokaryotes are generally smaller than microscopic eukaryotes.

7 0
2 years ago
Please answer, I'll give points and brainlest.
Len [333]
I believe your answer would be D.
5 0
3 years ago
Read 2 more answers
2. What is the goal of the cell cycle/mitosis?
Serjik [45]

Answer:

<em>Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell? divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.</em>

<em></em>

8 0
2 years ago
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