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3 years ago

How did plate tectonics affect the evolution of dominant animal life in the mesozoic era?

1 answer:

8 0

As the vast Pangea continent broke apart due to tectonic movements, the movement of animals was restricted to their continent hence gene flow between populations was reduced. As the tectonic plates moved across latitudes, their climate changed and consequently, the fauna on the continents. This necessitated for speciation of the offspring population from parent population so as to adapt to the new habitats. Some animals were unable to adapt while others such as the reptiles, adapted well.

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Answer:

Explanation:

Option D: Increasing the mass by sitting people inside

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What is most often given a value of zero to describe an object's position on a straight line?

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Which of these is an environmental effect of burning fossil fuels and pesticides from farming?

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7. In some chickens, the gene for feather color is controlled by codominance. The allele for black is B and the allele for white

kondor19780726 [428]

Answer:

See the answer below

Explanation:

Genotype is the genetic composition of organisms and a gene is made up of two alleles.

a) Since the allele for black is B, the genotype for black chickens would be BB.

b) Since the allele for white is W, the genotype for white chickens would be WW.

c) Since erminette color is heterozygous, the genotype would be BW.

d) Two erminette were crossed:

BW x BW

BB BW BW WW

i. Probability of having black chick (BB) = 1/4

ii. Probability of having a white chick (WW) = 1/4

iii. Probability of having erminette chicken (BW) = 1/2

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3 years ago

What are some of the characteristics of life that plants must fulfill?

PIT_PIT [208]

The most characteristic of the plants which can fulfill is the use of energy, maintain homeostasis,and composed of the cells.

Explanation:

HOMEOSTASIS: It is the property of the living organisms in which the internal system is kept in balance. Plants stay cools in the desert heat through their reflective surface, reduced leaves or the leaves that are parallel to the sun.

USES OF ENERGY: The plant uses the energy of the sun to change the water and the carbon dioxide into the sugar called glucose and it is used by the plants for the energy.

CELLS: It has cell walls, cell membranes, and it is composed of cellulose, pectin, hemicellulose. The cell in the plants varies from species to species.

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3 years ago