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3 years ago

What tool is used in analyzing bullets?

Biology

2 answers:

klemol [59]3 years ago

7 0

Answer:

laser microscope

Explanation:

because you want to show the finger print

marin [14]3 years ago

6 0

Answer:

Comparison microscope

Explanation:

i just took the test

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When you first get into the swimming pool the water feels rather cool; but after swimming for a while the water feels fine. a fr

swat32

but after swimming for a while, the water feels fine. A friend asks you how the water is, and you tell her the “water’s great.” She jumps in and then accuses you of lying because the water is freezing. You really were not lying. It is just that you experienced

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3 years ago

A "mystery molecule" was isolated in a laboratory and scientists found that the molecule readily crossed artificial membranes. W

Arlecino [84]

Answer: D. calcium chloride

Calcium chloride molecules can be ruled out as the mystery molecule

Explanation:

Artificial membranes are also called as the synthetic membranes. It is created synthetically for the special separation purpose in the laboratory. 

It is used to separate large molecules like solid particles and big biological molecules like protein, DNA. 

They are produced from organic materials. Calcium chloride contains the chloride ion and calcium ion, as the chloride ion easily passes the artificial membrane so we can term calcium chloride as the mystery membrane that passes the artificial membrane easily.

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3 years ago

Substances that can pass through cell membranes by diffusion include

arlik [135]

Answer:

Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.

Explanation:

7 0

3 years ago

In complete sentences, please explain why it is good to sweat during/after a workout. What might happen if an athlete did not sw

Nimfa-mama [501]

Sweating is the body's way of cooling itself. If you did not sweat, you could overheat the body and collapse from heat exhaustion.

7 0

3 years ago

Question 1 6 pts

balu736 [363]

uestion 1 6 pts

In a lab report, the hypothesis should be in the "method" section.

True

False

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Question 2 6 pts

In a lab report, the background information / research should only be one sentence.

True

False

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Question 3 6 pts

In a lab report, the "materials" section is a bulleted list of the materials used.

True

False

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Question 4 6 pts

In a lab report, the "statement of purpose" is in the "introduction" section.

True

False

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Question 5 6 pts

In a lab report, a discussion of the results should be in the "results" section.

True

False

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Question 6 6 pts

In a lab report, any errors made should be mentioned in the "discussion" section.

True

False

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Question 7 6 pts

In a lab report, a numbered, step-by-step set of instructions for performing the experiment should be in the "discussion" section.

True

False

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Question 8 6 pts

In diffusion, solute moves from an area of high concentration to an area of low concentration.

True

False

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Question 9 6 pts

In osmosis, the solvent moves.

True

False

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Question 10 6 pts

One of the products produced in photosynthesis is glucose.

True

False

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Question 11 6 pts

The order of mitosis is: interphase, prophase, anaphase, telophase, metaphase.

True

False

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Question 12 7 pts

Human cells have 17 chromosomes.

True

False

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Question 13 7 pts

Meiosis is involved in the production of gametes.

True

False

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Question 14 7 pts

Plant cells have a cell wall.

True

False

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Question 15 7 pts

ATP is produced in the mitochondria.

True

False

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Question 16 6 pts

In the process of cellular respiration, ATP is produced

True

False

8 0

3 years ago