By the close of the ______ period, therapsids had given rise to early mammals

1 answer:

3 0

By the close of the Triassic period, therapsids had given rise to early mammals.

The Triassic period is the era when the therapsid existed.
To be short, Therapsids (which means a group of species related to wild beasts in Latin) are the ancestors of the mammals. They competed in survival with dinosaurs from the Permian era until the Triassic era.

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How can mutations lead to human evolution?

lions [1.4K]

Answer:

How Mutations Can Lead to Human Evolution?

Explanation:

A mutation is the random change in the nucleotide sequence or in the DNA organization (genotype) of a living being, [1] that produces a variation in its characteristics and that is not necessarily transmitted to the offspring. It occurs spontaneously and suddenly or due to the action of mutagens. This change will be present in a small proportion of the population (variant) or the organism (mutation). The genetic unit capable of mutating is the gene, the unit of hereditary information that is part of DNA.

In multicellular beings, mutations can only be inherited when they affect reproductive cells. A consequence of mutations can be, for example, a genetic disease. However, although they may seem harmful in the short term, mutations are essential to our long-term existence. Without mutation there would be no change, and without change life could not evolve.

this came out I hope it helps you

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2 years ago

From the following list, which is a limitation to using an electron microscope?

pochemuha

the high expense; electron microscopes are costly

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3 years ago

The feet are __________ to the head. A. superior B. inferior C. cephalic D. caudal

-Dominant- [34]

B. inferior
because it is definitely not any of the others

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2 years ago

Read 2 more answers

which plane velocity was greatest? Yeagers Bell x-1, The Concorde, SR71 blackbird, none they all traveled at the same speed.

Stels [109]

Answer:

The SR-71 Blackbird.

Explanation:

The Lockheed SR-71 "Blackbird" was an American strategic reconnaissance aircraft that traveled at over mach 3, or 3 times the speed of sound. The Concorde was a French passenger jet with a top speed of just over mach 2. The Bell X-1 was the first supersonic test plane and had to be dropped from a larger plane to reach altitude.

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3 years ago

When two species compete for the same ecological niche, they cannot coexist because they are competing for the exact same resour

zalisa [80]

The correct answer is B. competitive exclusion.
This law refers to the fact that it is nearly impossible for two species to exist in the same place at the same time together, if they are interested in the same resources. If both species need the same thing to survive, one will have to be stronger while the other one will dwindle in number.

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2 years ago