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monitta
3 years ago
5

1. What is a stem cell

Biology
1 answer:
Blizzard [7]3 years ago
6 0

Answer:

1. Stem cells are unspecialized cells. For example, stem cells can become blood cells, brain cells, or skin cells

2. Embryonic stem cells are different from other stem cells due to their being able to generate all cell types. Stem cells found in adults can only make a few types of stem cells.

3. They are first developed into specific adult stem cells and then injected into the damaged area to begin repairs.

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What structures within the muscle fiber impart the 4 major haracteristics of skeletal muscle?
Marta_Voda [28]
Hmrysmfhmrsymxfhmsymhmsyhmtymdghmt,ugj,mgju,
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3 years ago
The following statements are all true regarding amino acids and proteins. Select which statements are unique to proteins alone a
Tomtit [17]

Answer:

The statement true of all proteins, carbohydrates and fats is that human body is able to synthesize them all.

The statement unique to proteins is that proteins are made up of instructions according to DNA.

Explanation:

Carbohydrates, Proteins and fats are macronutrients and required by body in larger amounts. All these macromolecules are made up of building blocks like proteins are from amino acids, carbohydrates from monosaccharides and fats from triglycerides. Human body can also synthesize these macronutrients. Like proteins can be synthesized by central dogma. Glucose can be synthesized by gluconeogenesis from glycogen and fats can be synthesized from acetyl-CoA and NADPH.

The proteins are made up by a process known as central dogma. The first step of central dogma is replication in which a replicated copy of DNA is produced in a cell. The second step is transcription for the production of messenger RNA from DNA. At last mRNA is used for the production of proteins on ribosomes.

8 0
4 years ago
What's all the parts in a heart !
Sati [7]
Artia, spetum, ventricles, valves
8 0
4 years ago
Consider an A - T versus G - C single-nucleotide polymorphism (SNP) in the human genome. This means that the DNA molecules in th
Softa [21]

Answer: A-T or G-C

Explanation:

The single-nucleotide polymorphism in human genomes is a substitution of a single nucleotide which occur in a specific position at the genome. The A-T nucleotide may appear dominant in the most population, while the remaining minor population may have the G-C nucleotide. The DNA molecule in the population at this site have A-T or G-C.

6 0
3 years ago
A large population of yellow perch lives in the east river. the walleye is a larger fish that eats the yellow perch. despite lot
loris [4]

The lack of adaptations to the habitat most likely caused the walleye to move to a different river.

Adaptation

It is a biological mechanism that increases the chance of its survival in a new environment or the changes in the existing environment. Adaptation occurs as a result of evolution and allows the organism to survive and reproduce efficiently in its environment.

Physical adaptations include accumulating changes in the physical characteristics of an organism that help them to survive and reproduce better. Example: evolution of long necks in giraffes.

Behavioral adaptations are changes in the behavior or habits of organisms that help them to sustain in a changing or new environment. Example: Hibernation.

Due to some reason, the walleye were not able to adapt to the environment of the east river which is why they must have moved to a new river despite the presence of a lot of prey.

Know more about adaptations

brainly.com/question/12534888

#SPJ4

3 0
2 years ago
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