Which of the following best defines a gene pool?

a. the sum of all genetic traits in a population’s individuals at a given time
b. any movement of genes from one population to another
c. any movement of organisms from one environment to another
d. the random change in the frequency of an allele in a population

Answer:

A

Explanation:

geothermal energy, solar energy, and wind energy increased, and in 2019, the combined percentage share of these renewable energy sources was greater than the combined share of wood and hydro energy.Jun 22, 2020

Answer:

The muscular system creates movement

,it protects the organs

,the cardiac muscle pumps blood

,smooth muscle aids digestion

, and smooth muscle ensures blood flow

Explanation:

Answer:

When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.

Explanation:

Answer:

Proteins in the cell membrane include cell-surface markers, receptor proteins, enzymes, and transport proteins.

One is to transport nutrients into the cell and also to transport toxic substances out of the cell.

Explanation: I hope this helps

Answer:

Natural immunity occurs when you become immune to a specific disease after contracting it. This triggers your immune system to make antibodies against the germ causing the infection inside of you. Antibodies are like special bodyguards that only recognize certain germs.

Answer:

Natural immunity is the immunity got by the body without taking any drugs.

Explanation:

Answer:

I think it is the atomic mass, or the atomic weight.

Explanation:

The number above the symbol is the atomic mass (or atomic weight). This is the total number of protons and neutrons in an atom.  The number below the symbol is the atomic number and this reflects the number of protons in the nucleus of each element's atom.

(I'm so sorry if I'm wrong)

Hope this Helps!

Answer:

Meiosis

Explanation:

Only reproductive cells/gametes use meiosis.

Answer:

The amount of fossil fuels formed is much less than the amount used.

Explanation:

Fossil fuels, which include petroleum, coal, natural gas etc are an example of non-renewable sources of energy. They are termed non-renewable because they are sources that gets exhausted quickly without replenishment.

One of the characteristics of non-renewable sources of energy is that they get exhausted faster than they can be produced. Hence, regarding fossil fuels as an example of non-renewable source of energy, this means that the amount of fossil fuels formed is much less than the amount used.

Answer:

it tis C

Explanation:

Answer:

It's either D or B, I'm not really sure

Explanation:

In 1972, EPA issued a cancellation order for DDT based on its adverse environmental effects, such as those to wildlife, as well as its potential human health risks. Since then, studies have continued, and a relationship between DDT exposure and reproductive effects in humans is suspected, based on studies in animals.

Human health effects from DDT at low environmental doses are unknown. Following exposure to high doses, human symptoms can include vomiting, tremors or shakiness, and seizures. Laboratory animal studies showed effects on the liver and reproduction. DDT is considered a possible human carcinogen.

Answer:

Abiotic factors refer to non-living physical and chemical elements in the ecosystem. ... Examples of abiotic factors are water, air, soil, sunlight, and minerals. Biotic factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction.

Explanation:

1. The sun transforms nuclear energy into heat and light energy.

2. Chemical reaction is a chemical substance that can be transformed to other forms of energy. As an example, when a fuel is burned the chemical energy of molecular oxygen is converted to heat, and the same is the case with digestion of food metabolized in a biological organism.

Answer:

Explanation:

for chemical energy is can be transformed in several ways since it is potential energy it can be transformed into kinetic energy  or into electrolysis because  batterys  contains energy within.

nuclear energy can be transformmed into a fission reaaction which helps provide nergy to large cities or the fusion reaction which is the sun providing light for all our needs!

Answer: Glucose its fairly simple to   remember an i hope this helps

Answer:

condensation

Explanation:

The water cycle

evaporation--> condensation--> precipitation-->repeat

Answer:

the mass is 500 kg because stating the formula for force would make u substitute and rather make mass the subject

Answer:

True

Explanation:

For example:Homo sapiens etc.

Answer:

Hi, I think it is A) Counting and classifying the debris in the area where the gorillas live.

Explanation:

I am sooooo sorry if I got it wrong! Have a nice day and good luck! :)

Answer:

Advantages of Urbanization

Urban residents in many parts of the world tend to live longer than do rural residents, and have lower infant mortality and fertility rates. Cities provide better access to medical care, family planning, education, and social services. Recycling is more economically feasible.

Ventajas de la urbanización:

Crecimiento sostenido. El crecimiento de las ciudades va acompañado de una mayor demanda de servicios básicos y de bienes de consumo, lo cual genera un mercado mayor a satisfacer.

Concentración poblacional. Las ciudades son ámbitos más controlables por los Estados y con mayor facilidad de cobertura de redes de servicio o de distribución, dado que la población se concentra en algunos kilómetros a la redonda.

Complejización laboral. El mercado de empleo en la ciudad es mucho más diverso y variado que en las zonas rurales, permitiendo así el desarrollo y complejización de las actividades industriales, comerciales y de servicios.

Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase. For more evaporation, the area that surrounds the surface of the water must be less humid i.e. it should not already be concentrated have the water vapors. For the evaporation we need to increase the temperature of the molecules of water on the surface, which is caused by the Sunlight.

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By keeping that in mind,

Drag the box

LIQUID --> GAS

and

WATER TURN INTO VAPOURS AND RISES UP IN THE SKY.

also

ENERGY FROM SUN CAUSES WATER TEMPERATURE TO RISE

Condensation is the change of water from its gaseous form (water vapor) into liquid water.

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Keeping that in mind,

Drag box

GAS ---> LIQUID

and

WATER VAPOURS COOL IN THE SKY AND TURNS INTO CLOUDS.

Anything that is falling from the sky is precipitation. It could be rain, hail, snow, or sleet.

_________________________________________________________

Keeping that in mind,

Drag the box

WATER VAPOURS FALL ON THE EARTH IN THE FORM OF RAIN SNOW HAIL OR SLEET.

Hello there wish you a GREAT Thanksgiving :)

Microbial Soil Orga​nic Matter Decomposition

Organic matter decomposition serves two functions for the microorganisms, providing energy for growth and suppling carbon for the formation of new cells. ... Dead plant residues and plant nutrients become food for the microbes in the soil.

Microbes thrive underneath no-till conditions and winter cover crops. cowl plants and manure may be used to feed soil microbes and recycle soil vitamins. As soil microbes decompose organic residues, they slowly release vitamins lower back into the soil for the winter cowl vegetation or for the preceding crop.

By-products from growing roots and plant residues feed soil organisms. In turn, soil organisms support plant health as they decompose organic matter, cycle nutrients, enhance soil structure and control the populations of soil organisms, both beneficial and harmful (pests and pathogens) in terms of crop productivity.

Useful soil microbes carry out fundamental capabilities which include nutrient cycling, breaking down crop residues, and stimulating plant boom. at the same time as the position of microbes to preserve soil fitness and make contributions to crop performance is clear, the soil organic factor is extremely difficult to take a look at and control.

Learn more about Soil micro-organisms at https://brainly.com/question/606196

#SPJ2

Answer:

What are the statements about the Chromosomes? If you get the statements I will gladly help out :)

Explanation:

Thank you!

Answer:

120000

Explanation: Each gene pool is multiplied

Answer:

quartz: is used 4oscillatorsvfor watches and it is a GPS equipment

Olivine: used as casting sand and for removing impurities from steel

halite: used as food seasoning and melt snow

Explanation:

Plzzzzzzzzzzzzz give me brainiest

Answer:

cat

TA

CG

think of it as tree and Apple, car and garage

Explanation:

hope this helps :]

Answer:

Shark eats a parrotfish. No but help to maintain the populations of the next-biggest predators in the food chain.

Explanation:

Answer:

Explanation:

EU acho e a letra (C)

Answer:

you gotta post a image

Explanation:

Answer:

It's B

Explanation:

Your welcome, and have a lovely day! <3

Answer:

A, the availability of water

Explanation:

Answer:

I don't see the last image after the snake. Anyway, I would say C because the Snake would eat more Toads, so Snake population would increase.