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dsp73
1 year ago
7

In the total time of the United States space program, how many space flight tragedies have occurred? 1 2 None 5​

Biology
2 answers:
statuscvo [17]1 year ago
6 0

About 20 astronaut have faced fatalities during the space program.

olganol [36]1 year ago
5 0

Answer:

2

Explanatioin:

DO reasearch about all the space launches

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All of the following are macromolecules except:
Harman [31]

Answer:

The correct answer is c. Fatty acids

Explanation:

There are four major types of macromolecules present in nature and that are carbohydrates(polysaccharides), proteins, lipids, and nucleic acids. These macromolecules are polymers and are made up of monomer units.  

The monomeric unit of polysaccharides is mainly glucose, of protein is amino acids, of nucleic acid is nucleotides and the monomeric unit of lipid is fatty acids. Ribosomes are macromolecules because it is made up of RNA  and proteins.

So fatty acid is a monomer which joins together to form large macromolecules like lipids. Fatty acids are made up of a hydrocarbon chain which have one attached COOH group at the terminal position.

Therefore the correct answer is c. Fatty acids.

6 0
3 years ago
What part of the cell increases as the cell becomes smaller?
Nata [24]

Answer:

Surface area

Explanation:

The surface area to the volume ratio gets larger as the cell gets smaller and vice versa.

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2 years ago
You design an experiment to test the hypothesis that consuming caffeine increases a person's chances of developing a headache. P
lora16 [44]

Answer:

d) A group that does not drink soda (caffeinated or decaffeinated) or other caffeinated beverages for 10 days

Explanation:

In an experiment, two groups exist as follows: experimental group and control group. Experimental group is the group that receives the experimental treatment (independent variable) while the CONTROL GROUP is the group that does not receive the experimental treatment.

In this experiment, the experimental treatment is the CAFFEINATED SODA (contains caffeine). Hence, the appropriate control group for this experiment will be the group that does not drink any soda (whether caffeinated or decaffeinated) or other caffeinated beverages for 10 days.

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2 years ago
If scientists are studying the birds, crabs, and grass, but not the water or rocks in a salt marsh, what level of organization w
Brut [27]
Letter B. is the correct answer

Mark as brainleast plzzz
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3 years ago
Read 2 more answers
How do I harness the power of my brain?
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U think smth duh!!!!!!!!
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