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3 years ago

Fill in the Blank:

2 answers:

6 0

Answer: As a body cell grows, the ratio of SURFACE AREA to volume INCREASES. Before it grows to large, a cell will divide into two DAUGHTER cells. So that each new cell receives its own genetic instructions, the cell REPLICATES or copies, all of its DNA.

Explanation:

Georgia [21]3 years ago

6 0

Answer

As a body cell grows, the ratio of

surface area to volume increases. before

it grows to large, a cell will divide into

two daughter cells. so that each new

cell receives its own genetic

instructions, the cell replacates or

copies, all of its DNA

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Give four examples of species (animal or plants) that are over utilized

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Over utilized plants and animals are those plants and animals which are almost going out of existence or are already extincts as a result of over use by humans. Examples of over utilized animals include: West African Black Rhinoceros, Passenger pigeon, Sea mink, Tecopa pupfish, Pyrenean ibex and Tasmanian tiger.

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3 years ago

Organelles. Name them and tell what they are composed of?

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Nucleus, vacuole, Golgi apparatus, ribosomes, rough endoplasmic reticulum, vacuole, Mitochondria, Smooth Endoplasmic Reticulum, Lysosomes, centriole are the organelles.

Explanation:

Organelles are the membranous cellular structure inside the cell performing specialised functions.

Nucleus: It consists of DNA, the genetic material, chromosome, histone proteins, nuclear envelope.

Vacuole: These are membranous organelles having water, inorganic and organic molecules, waste material and nutrients.

Mitochondria: They have two phospholipid bilayers and proteins, cristae and matrix.

Smooth Endoplasmic Reticulum: It is made up of tubules and vesicles that eventually forms a branch.

Rough Endoplasmic Reticulum: It is composed of tubules, vesicles and cisternae and held by cytoskeleton.

Golgi Apparatus: It has cisternae placed in stacks and lumens, stores the protein to be modified.

Lysosomes: It is composed of lipids and proteins. It has a single layer membrane, lysosome enzyme.

Ribosome: It is made up of rRNA and rProtein.

Centrioles: These are made up of proteins named microtubules.

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4 years ago

In a eukaryotic cell in mitotic S-phase, a spontaneous DNA double-strand break occurred due to replication fork collapse. Geneti

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Answer: The DNA repair process was called recombination repair.

Explanation: A sister or homologous chromatide is used to generate recombination and be repaired in this sort of cases.

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3 years ago

What are the three animals types

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Answer:

Explanation:

Three different types of animals exist: herbivores, omnivores, and carnivores.

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3 years ago

The piece of metal is magnetic and is lustrous. Is this statement an example of physical or chemical properties being describe a

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Answer:

The correct answers are options C, that is, silver tarnishes and becomes black when exposed to oxygen, and option E, that is, diesel fuel burns when it is heated.

Explanation:

Chemical changes refer to the modifications in which the chemistry at molecular level is modified as the initial substance gets transformed into a new and different final substance. This change occurs with the dissociation of old bond and production of new bonds respectively.

I hope this helps. :).

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2 years ago