Digestion begins when__

1- The esophagus passes food to the stomach

2- food enters the small intestine

3- water is absorbed in the large intestine

4- amylase breaks down starch

The RNA is the answer

Answer:

RNA

Explanation:

EDGE2021

Answer:

Explanation:

Air mass, in meteorology, large body of air having nearly uniform conditions of temperature and humidity at any given level of altitude. Such a mass has distinct boundaries and may extend hundreds or thousands of kilometres horizontally and sometimes as high as the top of the troposphere (about 10–18 km [6–11 miles] above the Earth’s surface). An air mass forms whenever the atmosphere remains in contact with a large, relatively uniform land or sea surface for a time sufficiently long to acquire the temperature and moisture properties of that surface. The Earth’s major air masses originate in polar or subtropical latitudes. The middle latitudes constitute essentially a zone of modification, interaction, and mixing of the polar and tropical air masses. Continental Polar (cP) air usually forms during the cold period of the year over extensive land areas such as central Asia and northern Canada. It is likely to be stable and is characteristically free of condensation forms. When heated or moistened from the ground with strong turbulence, this type of air mass develops limited convective stratocumulus cloud forms with scattered light rain or snow showers. In summer strong continental heating rapidly modifies the coolness and dryness of the cP air mass as it moves to lower latitudes. Daytime generation of cumulus clouds is the rule, but the upper-level stability of the air mass is usually such as to prevent rain showers. The continental Tropical (cT) air mass originates in arid or desert regions in the middle or lower latitudes, principally during the summer season. It is strongly heated in general, but its moisture content is so low that the intense dry convection normally fails to reach the condensation level. Of all the air masses, the cT is the most arid, and it sustains the belt of subtropical deserts worldwide. The maritime Tropical (mT) is the most important moisture-bearing and rain-producing air mass throughout the year. In winter it moves poleward and is cooled by the ground surface. Consequently, it is characterized by fog or low stratus or stratocumulus clouds, with drizzle and poor visibility. A steep lapse rate aloft in regions of cyclonic activity ensures the occurrence of heavy frontal and convective rains. In summer the characteristics of the mT air mass over the oceans and in zones of cyclonic activity are basically the same as in winter. Over warm continental areas, however, the air mass is strongly heated so that, instead of fog and low stratus clouds, widely scattered and locally heavy afternoon thunderstorms occur. Read this because it might be help if not i kceep trying to find the answer.

Answer:

Air mass, in meteorology, large body of air having nearly uniform conditions of temperature and humidity at any given level of altitude. Such a mass has distinct boundaries and may extend hundreds or thousands of kilometres horizontally and sometimes as high as the top of the troposphere (about 10–18 km [6–11 miles] above the Earth’s surface). An air mass forms whenever the atmosphere remains in contact with a large, relatively uniform land or sea surface for a time sufficiently long to acquire the temperature and moisture properties of that surface. The Earth’s major air masses originate in polar or subtropical latitudes. The middle latitudes constitute essentially a zone of modification, interaction, and mixing of the polar and tropical air masses. Continental Polar (cP) air usually forms during the cold period of the year over extensive land areas such as central Asia and northern Canada. It is likely to be stable and is characteristically free of condensation forms. When heated or moistened from the ground with strong turbulence, this type of air mass develops limited convective stratocumulus cloud forms with scattered light rain or snow showers. In summer strong continental heating rapidly modifies the coolness and dryness of the cP air mass as it moves to lower latitudes. Daytime generation of cumulus clouds is the rule, but the upper-level stability of the air mass is usually such as to prevent rain showers. The continental Tropical (cT) air mass originates in arid or desert regions in the middle or lower latitudes, principally during the summer season. It is strongly heated in general, but its moisture content is so low that the intense dry convection normally fails to reach the condensation level. Of all the air masses, the cT is the most arid, and it sustains the belt of subtropical deserts worldwide. The maritime Tropical (mT) is the most important moisture-bearing and rain-producing air mass throughout the year. In winter it moves poleward and is cooled by the ground surface. Consequently, it is characterized by fog or low stratus or stratocumulus clouds, with drizzle and poor visibility. A steep lapse rate aloft in regions of cyclonic activity ensures the occurrence of heavy frontal and convective rains. In summer the characteristics of the mT air mass over the oceans and in zones of cyclonic activity are basically the same as in winter. Over warm continental areas, however, the air mass is strongly heated so that, instead of fog and low stratus clouds, widely scattered and locally heavy afternoon thunderstorms occur. Read this because it might be help if not i kceep trying to find the answer.

Explanation:

Answer:

because nucleic acids are in living cells. they need energy to properly function especially in DNA and RNA.

Explanation:

Answer:

a type of tech that helps get the answer to everything

Answer:

Explains how organisms change in response to the environment (First Choice)

Explanation:

It's the first choice, because it basically describes about the relations between both the world, which the environments and the living organisms.

Answer:

4.6 to 4 Billion Years Ago

Explanation:

According to the researchs and studies, the earth formed about 4.54 billion years ago and the oldest known living organism date to around 3-3.5 billion years ago which are the first bacteria that formed in the water.

I hope this answer helps.

Because both prokaryotic and eukaryotic cells have chromosomes (prokaryotes, and more specifically, bacteria, generally have just one chromosome, but there are some bacteria as well as archaea—which are also prokaryotes—that have multiple chromosomes).

Since the chromosomes are DNA molecules present in both the prokaryotic and eukaryotic cells, it is not a reliable method to determine if a cell is prokaryotic or eukaryotic

The nucleus of a eukaryotic cell is bounded by internal membrane, therefore, it is distinctive.

In contrast, the nucleus of a prokaryotic cell lacks internal membrane, hence its nucleus is not distinctive.

Chromosomes are Deoxyribonucleic (DNA) molecules that carry genetic information of a cell or organism.

The chromosomes are present in both the eukaryotic and prokaryotic cells. Chromosomes present in the eukaryotic cells are called eukaryotic chromosomes while chromosomes present in the prokaryotic cells are called prokaryotic chromosomes.

Since the chromosomes are DNA molecules present in both the prokaryotic and eukaryotic cells, it is not a reliable method to determine if a cell is prokaryotic or eukaryotic

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Answer:

Virchow saw cells dividing and added that living cells arise only from other living cells. All organisms are made of cells, all life functions occur in cells, and all cells come from other cells

Explanation:

Hope this helped you out.

Answer:

Constitute means like make it work/control, i think. Im pretty sure

Answer:

Excess nutrients are a problem because they cause nutrient pollution in bodies of water. This pollution can feed dangerous algae and can kill things that make oxygen.

Answer:

D. Some traits in certain embryos disappear as the embryo develops

Explanation:

I don't know how I would explain it, but I can list some of the things that disappear such as...  Gill slits, and tails. Hope this helped :D

Answer:

D. Some traits in certain embryos disappear as the embryo develops.

Explanation:

Embryology is the study of embryos. Embryos of different animals such as mammals, birds, fish, reptiles etc. look alike that is they are very similar. Many traits of one type of animal appear in the embryo of another type of animal.

Answer: The grease helped the loosen the chain. This is because of increased friction, and also because a rusty and dirty chain also means a rusty and dirty gear set and drive train, and imprecise shifting.

Explanation:

Answer:

It is the sun in most ecosystems as the light energy is fixed during photosynthesis and then transferred to other organisms via the food chain.

Explanation:

Answer:

B. Organelle

Explanation:

Answer:

D.CH4

Explanation:

Methane (CH4) is the prototypical organic molecule. Stick drawings of methane and some other organic molecules follow. Although uncommon, there are organic compounds that don't contain a C-H bond. For example, CCl4 is almost always classified as organic.

Answer:

Scientists can determine the age of the seafloor by examining the changing magnetic field of our planet. ... While it cools down, it records the magnetic field during its formation. The two parts of the oceanic plate are pulled apart, and magnetic stripes become older as they move away from the mid-ocean ridge.

Explanation:

I didn't know so I googled it and this is what it came up with. I hope this helps!!

Answer:

Um B I hope my answer is right!!

Explanation:

Answer:

The answer would be the last choice, "because this is necessary for the data to be valid."

Explanation:

This is because in an experiment, things must be controlled or monitored in most ways; otherwise, the result of the experiment will be different from what it was meant to be. An experiment should be as exact as possible. If this is not possible, results may be unreliable.

An enzyme is a biological catalyst that seeds up chemical reactions.

A biological catalyst called an enzyme is usually always a protein. It accelerates a certain chemical reaction in the cell. The enzyme is continuously employed during the reaction and is not destroyed. Each enzyme molecule found in a cell is unique and tailored to a particular chemical reaction.

All biological activities in living things involve chemical reactions, and enzymes regulate the majority of them.

Many of these processes would not occur at a noticeable rate without enzymes. Every element of cell metabolism is catalyzed by enzymes.

Therefore, An enzyme is a biological catalyst that seeds up chemical reactions.

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Answer: secretary its right

Explanation:

Answer:

secretary

Explanation:

i do oddysseyware

Answer:

The answer is B- Electron Transport Chain

Explanation:

All those molecules are oxidized back to NAD+ and FADH molecules and the resulting H+ gradient works the ATP synthase to make ATP.

Hope this helped :)

Answer:

Igneous rock

Igneous rock that forms when magma hardens BENEATH Earth's surface. Igneous rock that forms from lava on the earth's surface hardens (when magma cools ABOVE the ground).

Answer:

Motor proteins propel themselves along the cytoskeleton using a mechanochemical cycle of filament binding, conformational change, filament release, conformation reversal, and filament rebinding.

Hope this helps :)

Answer: Biosphere

Explanation:

The earth has been composed of various elements and spheres that are defined by air, water, land, life, etc. The dogs belong to the biosphere. Thus, option C is correct.

A biosphere is one of the earth's spheres that has been constituted of other spheres like the hydrosphere, geosphere, atmosphere, etc., and is characterized by the presence of living things and life.

It comprises the ecosystem and the ecological cycles that are the most important element of the sphere. It includes various ecosystems that have various food chains and webs.

The dog is an animal that belongs to the biosphere as it is a living organism that is involved in various ecosystems like the forest, prairies, and arctic zones, and can adapt to varying temperatures.

Therefore, option C. dogs belong to the biosphere.

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Answer:

This is definitely osmosis and the substance is liquid and would flow in the direction of permeable membrane

Answer:Newton realized that the reason the planets orbit the Sun is related to why objects fall to Earth when we drop them. The Sun's gravity pulls on the planets, just as Earth's gravity pulls down anything that is not held up by some other force and keeps you and me on the ground.

Explanation:

Answer:

I think it's C

Explanation: I hoped this helped