number 1 in the diagram above is a representation of a/an

Answer:Key Points. Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level.

Explanation:

Freshwater wetlands are ecosystem affected by inundation (permanently or temporary). The three major types are swamps (uncultivated low-lying ground where water collects), marshes (low-lying and waterlogged land, flooded in wet seasons or at high tide) and bogs (wet muddy ground that's too soft to support a heavy body).

The biological molecule composed of elements C, H, O only is:  (2) carbohydrate.

Biological molecules are the organic polymers present inside the body that help in the proper maintenance and functioning of the body. The major biological molecules present inside the body are: carbohydrates, proteins, nucleic acids and lipids.

Carbohydrate is a polyhydroxy ketone or aldehyde. They are of three types: monosaccharides, disaccharides and polysaccharides. Mono saccharides are the basic monomeric unit that form the di- and poly-saccharides. They serve several functions like structural, energy, food, etc. Examples are glucose, starch, glycogen, etc. It is a very essential nutrient in foods.

The question is incomplete, the complete question is:

Which of the following biological molecules are composed of the elements C, H, O only?

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Answer: C

Explanation:

If products do not decompose, ii will commonly dwell in landfills and so much area will be taken up. Biodegradable means that there is the abililty to be decomposed and there is no harm in the ecosystem produced by this process. Materials or objects can be broken down to smaller parts and absorbed into the soil that will serve as nutrients.

A mosquito repellent which is sprayed on one arm and the other arm is not sprayed, is an example of independent variable.

A mosquito repellant is a chemical substance applied on the skin, clothes or any non-living object to avoid the appearance of mosquitoes on that surface. It is made of constituents like DEET, metofluthrin, oil of lemon-eucalyptus, picaridin, etc.

Independent variable in an experiment is that parameter which is changed. It has the potential to alter the results of the experiment as the effect on the experiment are influenced by this variable. It is called independent because no other variable can make changes in its effect.

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To be considered as fit for evolution processes, a species must be able to adapt in its environment and with capacity to reproduce sucessfully. Ambrosia, for example, is an invasive species. It has the abillty to promote accelerated evolution due to its adaptibility to its environment. Zea mays is an excellent species for genetic analysis. Quercus also has evolutionary potential because of its physiological characteristics.

Answer: 1. The right answer is amphibian.

2.  The right answer is Mollusks.

Explanation:

1. Regenerating a limb is not possible in mammals, as in most vertebrates. But in amphibians such as the salamander yes!

This amphibian does it very well, capable of making tail, eye or snout too. For a very long time, scientists have been trying to understand this secret of the salamander, or that of the zebrafish, because the answer is scientifically interesting but also, of course, because we can hope to take advantage of it to imagine one day of medical treatment for injured members. Just over a year ago, an Australian team showed the role of macrophages, cells of the immune system.

2. Mollusks (Mollusca) are a branch of Lophotrochozoans animals. They are unsegmented animals, with bilateral symmetry sometimes altered. Their body usually consists of a head, a visceral mass, and a foot. The visceral mass is covered in whole or in part by a mantle, which secretes a calcareous shell. The nervous system includes a double periesophageal collar. The general cavity is more or less reduced to pericardium and nephridia.

Answer:

Patagonia is the southern psrt of south america.

Answer: D Osmosis​

Explanation: Water moves into and out of cells by osmosis

Africa and North America have moved apart since 2001 by a total of about 21 inches.

This comprises of about seven landmasses on the earth which is usually very large and discrete and comprises of different countries. Examples include Africa, Asia, North America, South America etc.

Continents in the world such as Africa and North America move apart since 2001 at a rate of 1 inch per year. Since we were told that it occurred in 2001 then the total years in which it occurred is 21 then =

1 inch × 21 = 21 inches.

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Answer:

from the pelvis or to more distant parts of the abdomen.

Explanation:

Answer:

the offspring are genetic clones and there is lack of genetic variation among the offspring.

Explanation:

It is true that, Despite the fact that the complexity of animal nervous systems varies, their nerve cells are still remarkably similar.

Nearly all multicellular animals have nerve systems, but their complexity varies greatly. Sponge and the tiny blob-like placozoan and mesozoan organisms are the only multicellular animals without a nervous system. A diffuse nerve net makes up the nervous systems of ctenophores (comb jellies) and cnidarians (such as anemones, hydras, corals, and jellyfish). With the exception of echinoderms and a few worm species, all other animals have a nervous system that includes a brain, a central cord (or two parallel cords), and nerves that radiate from the brain and central cord.

The nervous system's most fundamental roles are to direct an organism's movement and to influence its surroundings (such as through pheromones). Signals are sent from one cell to another or from one part of the body to another to accomplish this. Signals that travel to muscle cells trigger the activation of muscles and signals that travel to endocrine cells triggers the release of hormones into the bloodstream or other internal fluids are the sources of the output that the nervous system produces.

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The answer to this question is B. enzyme have particular pH's at which they function best, since we can see both enzymes at different pH values, have different reactions rates: considering enzyme 1, the highest reaction rate is in pH 10, and considering the enzyme 2, the highest reaction rate is in pH 9.

The Photochemical smog impact the environment by decrease the crop yield in a region.

Photochemical Smog- When nitrogen oxides & organic compounds (VOCs) combine with sunlight, a mixture of pollutants called photochemical smog is produced, which explains why there is a brown cloud above cities. Due to the fact that we receive the most sunshine in the summer, it tends to happen more frequently. primary contaminates.

Global warming is being caused by the massive amount of fossil fuels which being consumed, which is increasing the amount of acid rain & photochemical smog produced as well as the quantity of atmospheric carbon dioxide.

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The substance that is not an element is water, it is formed by one atom of the element oxygen and two atoms of the element hydrogen.

The rest of the substances, iron, oxygen, carbon and hydrogen, are pure elements formed by equal atoms.

The DNA is constructed from sugars, phosphates and bases as follows:

Answer: B

Explanation:

The reason why these cells can develop too many tasks at once, beyond having the specific genes expressed, is that they can constantly produce usable forms of energy in form of ATP by using glucose in cellular respiration. So the correct answer to this question is the final one.

Answer: B. A single cell divides into multiple specialized cells.

Explanation:

B quite literally explains what happens to our bodies, we start with stem cells that divide and become specialized to produce all the different types of cells we need to grow and develop.

Body systems must work together. If one system will be damaged or fails, the other systems will be affected. If the digestive system will be fail, digestion will fails. Water will not be absorb that will lead to the circulatory system to have difficulty in the consistency of blood. If there is a presence of digestive disease, there will be an interference in the digestion as well. Other organ functions will be affected, too. Several effects will be seen such as dehydration, poor absorption of nutrients, blocked blood flow, etc. If the digestive shuts down due to damage of muscles or nerves, it may cause nausea, vomiting, lack of appetite and malnutrition. The nervous and circulatory systems work with the digestive system and these systems are greatly affected if it will not work properly.

The respiratory system is affected if the digestive system fails. These two systems work together to provide power to the entire body system. If digestion fail due to overeating, it can cause abdominal bloating. Bloating can lead to shortness of breath.

Hi. We just had a session with this same question is there any doubt left?

Photosynthesis and cellular respiration are, in a way, opposite reactions.

While photosynthesis takes the light energy and water and converts carbon dioxide into glucose, cellular respiration takes the glucose to produce chemical energy and it results in carbon dioxide and water.

This means that both reactions involve glucose, carbon dioxide, and also water, so this would be the correct answer (A).

The universe was created from a single massive explosion would be considered a theory because it can't be tested directly,

The phrase dune erosion by ocean water along a shoreline best describes a density-independent limiting factor that can affect ecosystem stability (Option B).

A density-independent limiting factor can be defined as any factor in a given ecosystem that may alter the homeostasis of the population that lives in a given geographic area.

These factors (density-independent limiting factors) are generally abiotic factors such as hurricanes, extreme temperature conditions, the presence of contaminants in the air that hamper life in a given area, etc.

Conversely, density-dependent limiting factors are biotic factors such as competitive species that alter the development of another population.

Therefore, with this data, we can see that a density-independent limiting factor is any abiotic condition that may alter the life of a population in a give geographic area and thus alter the homeostasis of the whole ecosystem.

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Answer:D

Explanation:

The vascular plants have several specialized reprodutive organs, which one responsible for one stage of the process of reproduction. The flowers are reprodutive organs, as well as fruits and cones, however they function in reproduction is distinct. The flowers is the most complex reproductive organ, since it is composed by for different structures (carpels, staments, petals and sepals), the cones are where the seeds are produced in the female plants during sexual reproduction after being fertilised by male gametes (pollen), and the fruits are the result following the pollination that are important to continuity of plants generations. Therefore, the alternative D (all of them are correct) is the answer for that question.

What creates most pollution is the burning of fossil fuels to produce energy for eletricity and transportation, because of the release of carbon dio

The answer is the letter D. Cerebellum- responsible for fine muscle control.

*Cerebellum is responsible for maintaining balance and posture.