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butalik [34]
2 years ago
8

A zygote (i.e., a fertilized egg) undergoes development to grow. What mechanism is used to generate more cells?

Biology
1 answer:
pentagon [3]2 years ago
6 0

Answer: Mitosis

Explanation:

Since meiosis helps only in the production of gametes, mitosis helps the somatic cells in the already fertilized egg (zygote) to do the following:

- multiply their number, thus aiding growth

- form new cells like red blood cells to transport oxygen, white blood cells to fight infection, liver cells etc

Thus, for growth mitosis is the mechanism used to generate more cells

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Saccharomyces cerevisiae (a yeast species) mutants are available that grow on pyruvate or ethanol, but not sugars or glycerol.
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Answer:

The enzyme is the pyruvate kinase

Explanation:

The designated enzyme can only grow in pyruvate or in ethanol. They are said to be in anaerobic conditions. If the end product of glycolysis is pyruvate and the enzyme that transforms phosphoenol pyruvate into pyruvate is called pyruvate kinase. In a reaction under anaerobic conditions, the pyruvate is transformed into ethanol. So if the pyruvate kinase enzyme is mutated, pyruvate cannot be transformed into ethanol and Saccharomyces cerevisiae could not survive in that medium.

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2 years ago
Difference between enzyme and inorganic catalysts​
puteri [66]

Answer:

Enzymes catalyze a reaction which in presence of a catalyst proceeds the reaction faster. Inorganic catalysts promote a chemical reaction between many different reactants. Enzymes are proteinaceous in nature whereas inorganic catalysts are not proteinaceous in nature.

Explanation:

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3 years ago
Kingdom Animalia:
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Answer:

Eukaryotic

Prokaryotic

Unicellular

Multicellular

Autotrophic

Heterotrophic

Explanation:

-organism having nucleus

-organism without nucleus

-organism having one cell

-organism having many cell

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-Organism that cannot make their own food.

4 0
3 years ago
In order to survive,all organisms must carry out
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Answer:

Enzyme-controlled reactions (digestion, synthesis, growth, regulation, reproduction, circulation, excretion)

Explanation:

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3 years ago
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The wood thrush makes its nest in woodlands in the northern and eastern United States. As patches of woods become smaller, incre
vampirchik [111]

Answer:

A) habitat fragmentation makes it easier for cowbird parasitism to occur

Explanation:

It is a situation where by there is transformation of a large habitat into smaller patches with smaller total area secluded from one another by a habitat different from the initial one.

Habitat fragmentation can be caused due geological processes which distort the physical environment. It is also casued by human activities which could lead to loss or extinction of certain species.

Habitat fragmentation could possibly lead to loss of habitat and biodiversity.

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