All orginsims grow and reproduce but how? And what about replacing those old and damaged cells?

1 answer:

5 0

Example:
When you skin your knee, cells divide to replace old, dead, or damaged cells. Cells also divide so living things can grow. When organisms grow, it isn't because cells are getting larger. Organisms grow because cells are dividing to produce more and more cells.

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Which of the following provides the best comparison between reptiles and fish?

PtichkaEL [24]

They are both ectothermic, but fish have gills, and reptiles have lungs.

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4 years ago

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What term describes the strings of ribosomes that are attached to an RNA transcript at one time?

Gennadij [26K]

Answer:

Polyribosomes.

Explanation:

During translation, the subunits of a ribosome surround the transcript and read down stream until they reach the start codon and begin polypeptide synthesis. Once the start codon is exposed, it is available for another ribosome to form around it, thereby initiating another locale for translation. Together the strings of ribosomes are called polyribosomes.

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3 years ago

All chemical reactions require activation energy to break chemical bonds and begin the reaction. The need for activation

elena-14-01-66 [18.8K]

Explanation:

E, will be lower- this denotes the activation energy

Activation energy is the specific amount of energy required for a chemical reaction to occur. Enzymes lower the activation energy, significantly speeding up the reaction rate.

Further Explanation:

Enzymes are proteins that catalyze reactions by working on substrates to promote reactions-including amylase breakdown of broad polysaccharides. Some enzymes like catalase, allow for the degradation of hydrogen peroxide into oxygen and hydrogen; the pH, temperature, and involvement of inhibitors influence their specificity.

Learn more about cellular life at brainly.com/question/11259903

Learn more about proteins and carbohydrates at brainly.com/question/10744528

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3 years ago

If one strand of the DNA reads: ATCCGCAT What will the complementary strand be?

quester [9]

Answer:

in rna the strand would be  UAGGCGUA

G goes with C and A goes with U ( unless there is a T within the strand already then its an A that airs up with it )

Explanation:

but if its in DNA the strand will be TAGGCGTA

G goes with C T goes with A

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3 years ago

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Mitochondrial DNA accumulates DNA mutations quickly. Because of this, it would be most beneficial in analyzing the ancestral rel

konstantin123 [22]

The answer would be: A. Mitochondrial DNA is beneficial in both of these cases

Mitochondrial DNA or mtDNA is DNA that found in the mitochondrial. Mitochondrial DNA only inherited from mother, so it's relatively unchanged than nuclear DNA that mixed from father and mother.
Mitochondrial DNA has higher mutation rate in animals because it doesn't have repair mechanism like nuclear DNA. These mutations can be used as a clue for how close the relation of an organism to others.
This makes analyzing the ancestral relationship of organisms that closely or distantly related easier.

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3 years ago