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3 years ago

The process of change in a population over the thime is called?

Biology

1 answer:

qwelly [4]3 years ago

5 0

Answer:

tramwayniceixand 1 otherlearned from this answer. Answer: 1. Micro-evolution is the change in allele frequencies that occurs over time within a population. This change is due to four different processes: mutation, selection (natural and artificial), gene flow and genetic drift. 2.

Explanation:

This change is due to four different processes: mutation, selection (natural and artificial), gene flow and genetic drift. 2.

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Fossils of Glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? Check

Alenkasestr [34]

Accordin to Du Toit's list supporting the theory of continental drift, the correct options are A, C, ad D. Fossils of Glossopteris were discovered on Africa, Australia, and Antarctica.

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Before answering the question, let us first review some theoretical frameworks,

• The tectonic plates theory explains the movement of the different plates based on the crust movements.

• The continental drift theory explains how these movements have been taking place for millions of years.

Alfred Wegener was the first one to state the concept of continental drift.

He proposed that once all continents were together a single big continent named Pangea, and with time, they split and separated into many pieces.

The geologist Du Toit published in 1937 a list of 10 pieces of evidence that would support the theory of tectonic plates and continental drift.

Du Toit's list includes evidence of Gondwana glaciation, lithological and structural evidence, plates fitting together, and paleontological evidence.

Paleontological evidence

• Plant and animal fossils distribution suggests the existence of a big unique continent. When reconstructing the supercontinent, the areas where these fossils were found get together in the same supercontinental region.

• Glossopteris (fern) impressions are widely distributed in determined areas of Africa, South America, India, Australia and Antarctica.

• Terrestrial vertebrate fossils also support the theory. The presence of Triassic tetrapods in all continents suggests terrestrial corridors between landmasses.

Finding Glossopteris in Australia, India, South America, Antarctica and Africa suggests that continents were once together, and these species used to live in the same region.

With time, these continents diverged and got separated by the oceans. The region where Glossopteris used to live got divided.

The correct options are A, C, and D. Africa, Australia, Antarctica.

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You can learn more about Glossopteris at

brainly.com/question/984155

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3 years ago

What is the smallest working unit of living things?

Ede4ka [16]

A. the cell is the smallest working unit of living things

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3 years ago

20 POINTS!! A _______ bond forms when two atoms share one or more pairs of electrons.

wolverine [178]

A Triple bond is when three pairs of electrons are shared between two atoms in a molecule. It is the least stable out of the three general types of covalent bonds.

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4 years ago

Read 2 more answers

Write a scientific explanation to describe the impact of the infected papaya trees on the toucan population.

seraphim [82]

The infected papaya trees will produce less carbohydrates or chemical energy for the toucan. If there were fewer carbohydrates within each papaya, the toucan's muscle cells would not be able to obtain as much chemical energy as they normally do. This chemical energy will be converted into mechanical energy or heat flow, which the toucan uses to fly.

Therefore, the lower amount of mechanical energy and heat flow from the muscle contractions, it would result into a reduced amount of kinetic energy of motion when the toucan is flying.

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3 years ago

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A good conclusion restates the hypothesis so that the reader

daser333 [38]

A good conclusion in a research paper restates the hypothesis so that reader can see the value of argument which either defends or criticizes the hypothesis. If it's a long paper it's a good idea to restate the hypothesis in the conclusion. This reminds the user of the hypothesis and draws the paper together. It also revisits the hypothesis and can provide new insight into the hypothesis. Another reason for restating the hypothesis in the conclusion is to pose questions and open the door for future research.

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3 years ago