A population of shrimp suddenly starts collapsing. a biologist believes that toxins in the food chain are interfering with larvae development. a climate scientist believes that a change in water temperature is depleting food sources from the water. why are both of these options valid scientific hypotheses?

Answer:

option D, All of the above are true.

Explanation:

A contour is a surveying terminology that is used to represents dots of similar elevation joined together by line.  All the points lying on any contour line are horizontal and have same elevation. Mostly contours are used to represent any elevation such as mountain, hill etc or a depression such as lake, river etc.

The same is the scenario with a calm lake, where all the surface points are horizontal and at same height. Therefore the shore of the lake will exactly follow a contour line. Hence, Option D is correct.

Answer:

Highest stream velocities exists at the mid channel near the surface of water

Explanation:

The highest velocity in a straight channel is found in the mid channel near the surface of water as there in no friction from the bed channel. On the other hand the velocity of a stream at the bank side and bed is the lowest as there is the highest friction caused by the roughness of the substrates constituting the  bank/bed.

The highest velocities of water along straight stretches of a stream channel are found in the center of the channel. This occurs due to the lower frictional resistance from the stream banks in the center, allowing the water to accelerate.

The highest velocities of water along straight stretches of a stream channel are found in the center of the channel.

This phenomenon is known as the main current and it occurs due to the shape and dynamics of the stream channel. The water flow is faster in the center because the frictional resistance from the stream banks is lower compared to the sides of the channel. As a result, the water accelerates and reaches higher velocities in the center.

For example, in a laboratory setup, if you observe the flow of water through a rectangular channel, you'll notice that the highest velocities are in the middle of the channel.

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Gerrymandering is the redrawing of legislative districts to benefit a specific political party, creating 'safe seats' and enforcing political control. The practice is legal but controversial due to its undemocratic implications.

Gerrymandering is the process of redrawing legislative district lines to secure an electoral advantage for a particular political party. By manipulating the boundaries, the party in power can redistribute voters to ensure that majority voters in a district favor them, creating a larger number of 'safe seats' which are more likely to elect their candidates. This practice, while legal, is considered undemocratic as it can institutionalize political power and make it more difficult for voters to enact change.

The term gerrymandering originates from a combination of the word 'salamander,' due to the odd shape of manipulated districts, and the name of Massachusetts governor Elbridge Gerry who, in 1812, signed a redistricting plan that benefited his party. When districts are redrawn through gerrymandering, it often results in strangely shaped electoral maps formed to dilute the voting strength of the opposition or certain groups, like racial minorities—though the latter can be challenged under the Voting Rights Act.

In some states, gerrymandering has been used to maintain a dominant party's control by ensuring 'safe seats' for its incumbent candidates. While both major political parties in the United States have engaged in gerrymandering, the practice remains controversial because of its potential to erode fair political representation and competition.

Tundra is an ecosystem region that is defined by a low temperature and short growing seasons for trees and plantations. The trees are almost absent and the ecosystem is found in the mountainous regions.

Tundra regions typically get less than 25 centimetres of rainfall annually.

Therefore, option C. is the correct characteristic of the tundra.

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Answer:

Option B. line up in the direction of Earth’s magnetic field.

Explanation:

In a molten rock, traces of iron found align themselves in the direction of earth’s magnetic field. This happens because each tiny particle of iron in the molten rock act as a small magnet with magnetic north and south poles. These poles re-orient themselves as per the direction of earth’s magnetic field. This happens till the rock is in molten stage, once it gets solidified the minute magnets gets stable in one orientation.

Hence, option B is correct.

Teeth are part of the buccal cavity. Its chief function is chewing and grinding food.  The ways in which structure of human teeth serves the function of eating meat and plant material as the incisors are flat to cut the food, canines are sharp to tear food while molars and premolars are broad to grind the food.

Teeth are of mainly four types, which have various functions.

The four types are:

Thus, these were the three ways the structure of human teeth serve the function of eating meat and plant material.

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The answer is listed below: :)

The right answer is Family.

In biology, the family is a taxon that gathers the genera that have the most species and similarities between them. It constitutes the fifth level of the classical classification of living species.

Regarding the Latin terminations indicating the rank, the name of the families ends with the suffix -aceae in plants, algae and fungi and -idae in animals.

Answer:

1. The structures that are similar in plants and fungi are hyphae in fungi and roots in plants.

2. The cell wall in both plants and fungi.

Explanation:

Hyphae performs a variety of functions in the body of fungi. They contain cytoplasm including the nucleus and genetic material. They absorb the nutrients from the environment and transport them to various parts of the fungi.

Plants have roots that absorbs the nutrients from the soil and transports it to various parts of the plant body.

Fungi have cell wall made of chitin and plants have ell wall made of cellulose. Though their chemical composition is different but their function is same.

They help in providing the structural framework to the cell and provides support to the plant body and fungi's body.

Water's high specific heat capacity helps regulate Earth's temperature, keeping it [ A] moderate.

Water's high specific heat capacity is what allows it to store more heat than land.

Complete question as follows:

The ability of water to hold more heat than land keeps the temperature on Earth A) moderate. B) the same. C) very low. D) very high.

Water is important as a control group when testing reagents because it serves as a comparison or standard in experiments. The outcome of the experimental group is compared to that of the control group (water) to determine the effects of the reagent.

In biological experiments, water is often used as a control group because it is considered a universal solvent. When testing reagents, it's important to have a comparison or reference group, and water is usually the best base for this. Essentially, water provides the standard against which the effects of the reagent can be observed and measured.

Control groups play a crucial role in experiments by providing a baseline that enables the experimenter to compare the results of the experimental group. A reagent is a substance or compound used in lab tests to bring about a chemical reaction. If the reagent produced a change, we could determine that the result was due to the reagent and not some other factors because the same change did not occur in the water (control group).

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Answer:

i think they should but becuase i hecking love animals

Explanation:

Answer:

Animals have adapted to the harsh weather conditions and long winters of the tundra.

Animals migrate to eat insects that live there year round.

Many animals in the tundra hibernate during the long, cold winter months.

Animals are most active in the short summer as the snow melts and shallow wetlands form.

Mitochondria is the answer good luck and have an nice dayy

Final answer:

Accurate spelling of medical terminology is crucial in healthcare to prevent confusion and medical errors, ensure precise communication, and mirror professionalism. It is important to double check spellings and familiarize oneself with commonly used terms to maintain clarity.

Explanation:

Proper spelling of medical terminology in healthcare is vital because it ensures clear and precise communication, which is essential for effective patient care. Accurate spelling eliminates ambiguity and prevents medical errors. For instance, anatomical terms help to pinpoint exact locations on the body and are derived from Greek and Latin. These languages have stable meanings since they are not used in daily speech anymore. Hence, using the correct terminology is crucial to convey accurate information.

Misspelling medical terms can cause serious problems, such as confusing two medications that have similar spellings but different meanings or indicating the wrong site of a condition. It is important to familiarize oneself with these terms to minimize errors and to double check spellings, especially when relying on spell check applications that may not recognize medical jargon.

Attention to detail in meaning, grammar, punctuation, and mechanics is equally important across all disciplines. In medicine, the correct use of specialized vocabulary and proper spelling reflects professionalism and respect for the field, promoting greater trust in the healthcare provider’s expertise.

Answer:rebosomes,entoplasmic

Explanation:. Ribosomes cannot be seen with a light microscope due to their smaller size but can be seen only using an elect