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GREYUIT [131]
3 years ago
14

what is believed to be the first type of cells on earth? a. tree cells b. eukaryotic cells c. prokaryotic cells d. plant cells

Biology
1 answer:
Eddi Din [679]3 years ago
4 0
C. Prokaryotic cells are believed to be the first type of cells on Earth. Many scientists believe this is true, however, this claim has not yet been proven. 
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Proteins are one of the three macronutrients found in the diet and important structural molecule organisms. Proteins help provid
xxTIMURxx [149]

Answer:

The human body is able to synthesize them:  proteins, fats

Contains nitrogen in the amine group : proteins

Made according to instructions from DNA: proteins

Explanation:

The cells of the human body synthesize proteins from the transcription and translation processes.

Fats and carbohidrates are ingested in the diet and metabolized by the body. However some types of fat such as cholesterol is synthesized by the human body. Same as phospholipids that are part of the membranes.

Proteins are formed by hydrogen, oxygen, nitrogen and carbon. Amino acids are characterized  for owning a carboxyl group (- COOH) and an amino group (-NH2)

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3 years ago
2. What type of beef cattle operation is it where producers focus on genetic improvements
Vinil7 [7]

Answer: the answer is seedstock

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3 years ago
A TT plant and a Tt plant are both tall.
Hunter-Best [27]

Yes a TT plant and a Tt plant are both tall because for it to be short it has to be tt.

Hope I helped :)



5 0
3 years ago
This sample is naturally occurring, inorganic, solid, has a square crystal structure, and a definite chemical composition (NaCl)
Alika [10]

Answer:

A Mineral is defined as an inorganic, naturally occurring, homogenoussolid, with a definite chemical composition, and ordered (crystalline) atomic structures.

Explanation:

Inorganic: Involving neither organic life nor the products created from or by organic life.

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Homogeneous Solid: A mineral must be chemically and physically uniform down to the atomic level.

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Definite Chemical Composition means that all occurrences of that mineral have a chemical

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2 years ago
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3 years ago
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