Chemical energy in the form of food is changed into what?

1 answer:

8 0

Food is the most important source of chemical energy for living things. The chemical energy in food is converted, or changed, by the body into moving mechanical energy and heat energy. People have invented ways to use the chemical energy of substances to power machines.

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Natural Selection: Mastery Test

Finger [1]

Answer:

Genetic diversity in a small population, with a high level of genetic drift and with very little migration will decrease because existing alleles will be lost and few new alleles will be introduced over time (option A).

Explanation:

Evolution - linked to the natural selection and perpetuation of a species - depends, in large part, on three fundamental factors to make it happen:

Mutations .
Genetic drifts.
Migrations.

In small and isolated populations, very little genetic variation, high levels of genetic drift and very few mutations can be observed, which could lead to some alleles being lost and the species may become extinct.

Genetic drift (GD) is an important factor in terms of natural selection, as it is the result of allelic variations that occur from one generation to another. In large populations, GD is low, given the cross between different individuals is greater. A characteristic of GD in small populations is that their levels are very high, and this leads to the eventual loss of alleles.

In this small population, without the possibility of migration -few new alelles will be introduced- genetic variation will decrease, due the genetic flow is low, reducing reproductive fitness and weakening the population's resistance to environmental changes, which could result in the long-term extinction of the species.

Learn more:

Genetic drift brainly.com/question/6389220

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3 years ago

Water includes...

kirill115 [55]

Answer:

A, Temperature, pH, salinity, precipitation and humidity

Explanation:

Water includes all of these options. Also, water doesn't include wind which is in all three of the other options, so this is the only option that would work. Hope this helps :)

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3 years ago

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Write a paragraph discussing the relationship between the organizational levels of the environment; biosphere, biome, community,

skad [1K]

The environment is studied at different levels & stages.
Biosphere: The biosphere is the zone in which life exists. It consists of the atmosphere& the hydrosphere alongwith the earth surface where living beings live.

The biome is a community of plants and animals (flaura & fauna).
Community: A community is a group of people/living beings who live in a specific location. It is used to describe two or more populations of different species that exist at same place.
Population: A population is the multiple individuals or living organisms of a single species that live in an area.
The populations are formed by lalrge number of groups of organisms.
Group of populations form communities. The group of all communities form a biome, which exist in the biosphere.

The diagram shows:

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2 years ago

Why are the EPA's water quality standards useful?

professor190 [17]

It can help determine the quelity and safety of water. This can be a good deciding factor of choosing between tap vs bottled water. If the rating is too bad you should choose to use bottled water

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2 years ago

The purpose of meiosis is to

djyliett [7]

Answer:

B. Produce cells that are genetically identical to one another

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2 years ago

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