I need help. The class of macromolecule that would most likely be involved in contracting muscles would be ?

Glaciers grow smaller, causing sea level to rise when Earth's global temperature is lower. Thus, the correct option is C.

Sea level lowers during cold climate periods, known as glacial epochs or ice ages, due to a shift in the global hydrologic cycle, in which water evaporates from the oceans and is stored on the continents as massive ice sheets, extended ice caps, ice fields, and mountain glaciers. At the last glacial maximum, some 20,000 years ago, global sea level was about 125 meters lower than it is today.

Because the melting North American, Eurasian, South American, Greenland, and Antarctic ice sheets returned their stored water to the world's oceans as the climate warmed, sea level rose. Sea level is at its highest during the warmest eras, known as interglacial epochs.

We are currently living in the most recent interglacial, which began around 10,000 years ago and is referred to by geologists as the Holocene Epoch. Sea levels were about 3 to 20 meters higher than they are now during several previous interglacials.

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Answer:

hotter temperatures, increases storms, increases drought

Answer:

As greenhouse gas they trap the sun’s heat. This leads to global warming as called climate change if effects us by getting the earth hotter and hotter slowly getting more and more every year making ice that was there before for years now is gone

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Answer:

Nitrogen Fixation

Explanation:

Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation.

Plants must use nitrates in a form of nitrogen, which is needed to make proteins for healthy growth.

Nitrate plays a very important role in our ecosystem such that due to presence of nitrogen plants grow fastly and produce fruits of  bigger size  flowers too.

Plants absorb nitrates from  water through their roots without nitrates, the amount of chlorophyll in leaves reduces.

Nitrate is a common inorganic ion found in plants which is  required for proper growth and development of the plant and growers include the percentage of nitrates in their nutrient requirement to starts plant growth. Plants acquire nitrate through root intake from the soil and water around them.

Hence due to decreasing percentage of nitrogen plants are getting yellowed it means it produces smaller fruit.

In modern era farmers add nitrogen containing fertilizers which produce large amount of grains, foods and fruits which is also diseases free.

Therefore,Plants must use nitrates in a form of nitrogen, which is needed to make proteins for healthy growth.

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The carbon in the plants and the rabbit is :  Moving in and out simultaneously

The carbon cycle explains  the reusing of carbon atoms which enters the earth from the atmospheres and its movement back to the atmosphere ( reuse ).

As the rabbit eats from the leafy plant the carbon it absorbs from the consumption of the plants enters into the atmosphere simultaneously. while as the leafy plants loses its carbon to the rabbit, carbon is added to the leafy plants from the atmosphere.

Hence we can conclude that The carbon in the plants and the rabbit is : Moving in and out simultaneously

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Answer:

Climate has generally changed from warm to cool globally mostly because of glaciers. Our climate can be changed in the future by the glaciers, also. Think about it this way, glaciers in the south pole melt, and the sea levels rise. Wind currents shift the glaciers and ice shelves, so they break. This will cause the world to overheat, and sea levels to rise. That's how our climate has and will change over time.

Answer:

C: Cuscuta is a parasite .

Explanation:

Mushrooms are a part of the fungi domain meaning that it is a decomposer.  I'm not too sure whether it means stem body cells or a stem in a plant. Either way both are not parasites. Cuscuta is a plant that does not have chlorophyll (they can't carry out photosynthesis) and since this plant cannot make its own food, it feeds off a host plant that can make food. An organism that needs a host to survive is called a parasite. Haustoria is a part of some parasites however it itself is not one. And finally Rhizobium is a bacteria that converts Nitrogen into ammonia which helps plants.

Sorry about the bad english. Hopefully this kinda helps

Answer:

1. false as a hypothesis is an educated guess so

2. share the experiment please

3.independent

4.A

Answer:B

Explanation:

Answer:

the main purpose of the primary election is to get new people in office with new rules

Explanation:

Global winds are winds that appear in belts that go all around the world. Like local winds, global winds are driven by unequal heating of the atmosphere. Since global winds blow west to east, it helps humans travel west to east.

Global wind belts and calm regions have an effect on, is that the berg winds blow from the east and die out as they are available close to the equator.

The westerlies blow from the west and move storms across u. s. The easterlies blow from the east and they cause stormy weather to occur once cold air forms this belt meets heat air of the westerlies.

Thus, this could be the answer.

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Answer:

this is how long the universe to travel around the earth once

Answer:

iodine

Explanation:

it has the maximum potential for the Chemical to leak down.

Agriculture is the cultivation of soil, through its own procedures, methods and techniques, which seek to produce food for human consumption.

With this information, we can conclude that agriculture is the cultivation of soil, through its own procedures, methods and techniques, which seek to produce food for human consumption.

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Heterozygous dominant is the genotype of the sweet pea. thus option A is correct.

The genetic foundation of a certain trait is called an organism's genotype. While an organism's phenotype refers to its outward appearance.

When an organism has two copies of the same dominant allele, it is said to be homozygous dominant.

The identical recessive allele is present in two copies in a homozygous recessive organism.

An organism is said to be heterozygous if it possesses both the dominant and recessive alleles of a gene.

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Which is the genotype of the sweet pea ?

A. heterozygous dominant

B. heterozygous recessive

C. homozygous dominant

D. homozygous recessive

Answer: C. Homozygous dominant

I just took the test

Answer:

High stomatal conductance

Explanation:

Plants with a high photosynthetic capacity have a high stomatal conductance, in the absence of environmental stress (Reich et al., 1999, 1997). This enables plants with a high photosynthetic capacity to gain carbon rapidly, at the cost of high rates of water loss.

Answer:

A. Cell

B. Organ

C. Tissue

Explanation:

cell: The smallest unit of life capable of independent reproduction. Generally contains nucleic acid, cytoplasm, a cell membrane, and many other proteins and structures.

organ: A structure made of different tissues that work together to perform physiological functions.

Tissues: A group of similar cells with the same origin that work together to perform the same function.

Answer:

This is called a volcanic winter.

Explanation:

The reason why it is called a volcanic winter, is because in winter, it is colder than the other seasons, but, here's the difference. A volcanic winter is because sunlight is blocked, and a regular winter is when the earth is tilted in a place where the area is not being shined on by the sun.

Answer:

The answer is Bronchi

Explanation:

The Trachea is divided into two smaller tubes called the bronchi, one for each lung.

Hey there! Here are 7 differences between a cell and a virus:

Hope this helped. Explanations and examples are included within the points.

- profparis

Reduce the amount of pollutants that enter wetlands  best describes something these laws were intended to do. Thus, the correct option is A.

The CWA made it illegal to dump any pollutant into navigable waters from a point source unless a permit was obtained:

The Clean Water Act establishes the basic structure for regulating pollutant discharges into US waters as well as regulating surface water quality standards. The Federal Water Pollution Control Act, which served as the foundation for the CWA, was enacted in 1948, but it was significantly reorganized and expanded in 1972. With modifications in 1972, the Act's common name became "Clean Water Act."

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Humoral immunity protects the body against extracellular pathogens and Cell mediated immunity protects the body from intracellular pathogens .

Humoral immunity: It is the process adaptive immunity manifested by the production of antibodies by B lymphocytes. It develops the bone marrow. B cells may be trigged to proliferate into plasma cells.

Cell mediated immunity:  Cell mediated immunity is an immune response that does not involve antibodies but rather involves the activation of macrophages and NK cells.

Humoral immunity and cell mediated immunity works together with assistance from helper T cells, B cells.

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Answer: (A) inversion

Explanation:

EDGE 2023

Explanation:

The ecosystem was not able to recover quickly because seed banks were also destroyed during the fire that burnt almost everything.

Answer:

number 3 is the central vacuole and its  large, membrane-bound organelles found in plant cells that act as a storage space for water and other molecules in the cell

Explanation:

Answer:

3. Vacuole

Explanation:

Plant vacuole is a membrane (tonoplast) bound space which contains sap, water, excretory products and other materials (which are not useful for plants).



Some other points:-

Answer:

A

Explanation:

These are all limited in an ecosystem, and if there isn't enough, it limits the growth of a population. All of these are abiotic factors, not biotic. Shelter has nothing to do with food chains.

Hope this helps!

Answer:

the inability of an psychological mechanism to perform its function

Explanation:

Answer:

When minute samples of DNA need to be genetically analyzed for identification purposes, which test can be effectively used? Fluorescent dye can be used as a label to trace antibody-antigen reactions in an ELISA assay

DNA is the genetic material that is the unit of inheritance. Small DNA samples can be increased in amount by the technique called PCR. Thus, option D is correct.

Polymerase chain reaction (PCR) is the technique used in biotechnology to quantitatively increase the amount of genetic material. It has been known to create billions and millions of copies of the sample.

The small DNA sample can be amplified by the process of PCR which involves the production of the DNA sample by the polymerase and primers to add the bases to the strand.

The DNA undergoes thermal cycling where the temperature of the system first increases in denaturation followed by a drop in temperature in annealing and lastly again a rise of temperature in extension.

Therefore, the PCR technique can increase the amount of small DNA samples.

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Your question is incomplete, but most probably your full question was, When minute samples of DNA need to be genetically analyzed for identification purposes, which test can be effectively used?

A. direct fluorescence antibody

B. Widal

C. Weil-Felix reaction

D. PCR

E. direct antigen reaction