Each year, as winter approaches, some species become inactive. They may sleep and use their body’s fat for energy during the cold season.

migration
hibernation
imprinting
conditioning

Answer:

I hypothesize that the cells are producing many proteins. This is because rough endoplasmic reticulum has ribosomes on the surface and ribsomes function is to make proteins.

Explanation:

The optimal pH for pepsin is 1.5 and lipase has an optimal pH around 7-8. Lipase is not typically found in the stomach.

The optimal pH for pepsin, the main digestive enzyme in the stomach, is 1.5. Pepsin works best in the acidic environment (low pH) of the stomach, where it helps break down proteins into smaller molecules.

On the other hand, lipase is an enzyme that primarily functions in the small intestine. The optimal pH for lipase is around 7-8, which is considered neutral to slightly alkaline.

No, lipase is not typically found in the stomach. It is primarily produced and secreted by the pancreas, and its main role is to break down fats (lipids) into smaller components that can be easily absorbed and utilized by the body.

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Pepsin's optimal pH is 2.0 for protein digestion in the stomach. Lipase's optimal pH is 8.0, active in the small intestine.

The optimal pH for enzymes can vary significantly, and it's important for their activity in different parts of the body:

1. Pepsin is an enzyme that works in the stomach, and its optimal pH is approximately 2.0. This highly acidic environment is conducive to the enzyme's activity in breaking down proteins.

2. Lipase, on the other hand, has an optimal pH of around 8.0, which is more alkaline. This enzyme is not typically found in the stomach. Instead, lipase primarily functions in the pancreas and the small intestine, where it aids in the digestion of fats.

3. Given that the stomach is a highly acidic environment, lipase would not be as active there due to its preference for a more neutral to alkaline pH. Therefore, it's not considered a major enzyme of the stomach. The primary lipase for digestion, pancreatic lipase, operates in the small intestine where the conditions are more suitable for its activity.

Enzymes like pepsin and lipase are crucial for digestion, each working best under specific pH conditions that match their location in the digestive system.

Answer:

Fractional or Ratio Scale: Afractional scale map shows the fraction of an object or land feature on the map. This type uses a set of numbers that represents the object or a landmark. As an example on the left photo, the orange-shadedscale represents a 2/3 fractional scale. 2.

Explanation:

Answer:

Malaria is the correct answer.

Explanation:

The rest are all diseases that are not able to be spread, but malaria can be spread from person to person due to an infected mosquito.

Answer: Juanita - Gravity is a force that exists between all objects that have mass even in space!

Explanation:

It sounds like the question is asking for your opinion and explanation on what you know about gravity.

To help you out a little bit, here’s some examples of gravity:

Gravity is the force in which pulls objects together. The force of gravity keeps all of the planets in orbit around the sun. Anything that has mass also has gravity. Objects with more mass have more gravity.

Hope this helps :)

Answer:

The correct answer is (A) MINING

Explanation:

I just took the test and got it right on edge

The process that leads to deforestation and increased erosion is mining. Find more explanation on mining below.

Mining is the process or activity of removing solid valuables from the earth.

During the mining process, solid parts of the Earth crust are removed so as to reach the minerals beneath it.

This leads to the deforestation i.e. removal of trees without replacement and increased erosion due to exposure to agents of erosion.

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Answer:

hunger, thirst, sleepiness

Answer:

hunger thirst sleepiness

Explanation:

sry if wrong

Answer:

C. energy transmitted by an electromagnetic wave

Explanation:

Radiant energy is defines as the energy of gravitational and electromagnetic radiation.

The energy is transmitted by electromagnetic waves in a synchronized oscillations of magnetic fields and electric field. Different types of electromagnetic waves have different wavelengths, frequencies, and power and all interact with matter differently. Different types of radiant energy include micro waves, visible light,radio waves, infrared radiation, X-rays,  ultraviolet radiation and gamma rays.

Radiant energy can travel through space and do not require any medium. Example of radiant energy is heat recieved from the sun by the earth travelled through a vacuum by electromagnetic waves.

Hence, the correct option is C.

Answer:

it is "In natural selection, the selection "pressure” comes from the environment; in artificial selection the “pressure” comes from humans."

Explanation:

We know that natural selection is when the weakest basically get sick and killed, and the strongest stay. here is the definition of natural selection: "the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution."

we also know that artificial selection (selective breeding) is when humans take, for example, the juiciest, reddest tomatoes, and breed those to create juicy red tomatoes. the exact definition of artificial selection is: "Selective breeding/artificial selection is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits by choosing which typically animal or plant males and females will sexually reproduce and have offspring together."

so based on the explanation, we know that natural selection is because of the organisms' environment and that artificial selection is because of humans. I hope this helped you! :]

Final answer:

The primary difference between natural and artificial selection lies in the source of the selection pressure: environmental conditions drive natural selection, while human preferences and interventions guide artificial selection.

Explanation:

The primary difference between natural and artificial selection is where the selection "pressure" comes from. In natural selection, environmental factors such as predators, availability of food, or climate conditions act as the selection pressure, favoring individuals with traits that enhance their survival and reproductive success. Conversely, in artificial selection, humans actively choose which individuals of a species to breed based on desired traits, leading to populations that are more aligned with human preferences over time. Thus, the key distinction lies in natural selection being driven by environmental challenges and survival of the fittest, while artificial selection is guided by human desires and intervention to cultivate certain traits.

Among the options, energy is not recycled in the biosphere. While matter like nitrogen, water, and carbon is cycled within the biosphere, energy flows one-way and is not reused but lost as heat.

In the biosphere, energy is the only component among those listed that is not cycled back and reused. Both matter and energy flow into the biosphere. Matter is cycled within and between ecosystems, such as through the carbon, nitrogen, and water cycles. Energy, however, is not recycled and flows in one direction. Sunlight is the initial source of energy for almost all life on Earth. It is converted to chemical energy by photosynthetic organisms and then passed on to consumers through food chains. This energy is not recycled but lost as heat as it passes through the food chain.

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the picture is pretty bad quality, but it looks like there are thrust faults.

a lot of limestone as well as some sandstone, conglomerate, quartize, chert, siltstone, clay, silt, sand, gravel, and mudstone.

there's a canyon in the south

pink limestone has the thickest deposits, and alluvium seems to have the thinnest.

the alluvium seems to appear in branch- or river-shaped formations, and the wahweap, colluvium, and sevier river formations are all in the north.

that's the best i could do with this information, really hope this helps!!

Answer:

Gizzard and crop

Explanation:

I just answered that question.

The branch of biology which deals with genes and inheritance is called genetics.

The correct answer is 71%.

The information in the question is not complete, the picture is absent here.

After finding the picture in the other answer.

The number of light color mice is 21 that have the gene "dd" and the number of the dark color mouse is 6 that have gene "DD".

The percentage is as follows:-

21-6=15

[tex]\frac{15}{21}*100 = 71%[/tex]%

Hence, the correct answer is 71%.

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We need more information to calculate the frequency of individuals that display the recessive trait (dd) in the mice collected from the Sonoran desert.

To calculate the frequency of individuals that display the recessive trait (dd), we need to know the phenotypic ratio of the mice collected from the Sonoran desert. The information provided in the question does not give the phenotypic ratio for the dark (D) and light (d) phenotypes. Without this ratio, we cannot accurately calculate the frequency of the recessive trait. To answer the question, we need more information.

Answer:

true

Explanation:

any force can be added to make a stationary object move. but if it was balanced then it would just stay in position

if there is 100N of force going towards the object, and you are pushing the object with 100N force. It  will not move.

Final answer:

The statement that an unbalanced force must act upon a stationary object to set it into motion is true according to Newton's first law of motion. An object at rest remains at rest, while an object in motion maintains its velocity unless acted upon by an unbalanced force.

Explanation:

The statement that an unbalanced force must act upon a stationary object to set it into motion is True. According to Newton's first law of motion, also known as the law of inertia, an object will not change its state of motion (i.e., it will not accelerate) unless an unbalanced force acts upon it. This means that if an object is at rest, it will stay at rest until a force that is greater than the sum of all opposing forces is applied to it. Contrary to misconceptions, a force can do work even if an object doesn't move, for instance if you're pushing against a wall with a force, work is being done on a molecular level, although there's no macroscopic movement.

When two unequal forces act on an object, the object will move in the direction of the net or resultant force, which is the vector sum of all the forces acting upon it. If this net force is zero, the object will remain stationary or continue to move at a constant velocity. This is a fundamental concept in classical mechanics.

Answer:

The Answer Is c

Explanation:

Answer:

She is studying pioneer species.

Explanation:

The lichen is a hardy species and they colonize on disrupted ecosystems, such as a lava field.

Answer:It uses its mouth to eat food and its legs to grab things.

Explanation:

Answer:

The moths have to find nectar, find mates and a plant to lay the eggs on. These plants are dispersed so the moths have to fly considerable distances to find them. Fuel for flight comes from nectar initially but then the moth switches to lipids to fuel flight.

Explanation:

thats what they do.....

Answer:

denamrk is a very populosus country

Answer:

D

Because Indonesia has lost nearly 15 percent of its trees since 2001

Explanation:

The Wallace is known to be the largest bee in the world. It is also known to have its nests high up on trees and they are commonly in Indonesia.

The bees however are facing threats of extinction due to deforestation and urbanization. Indonesia is known to have lost nearly 15 percent of its trees since 2001 which is the bees habitat.

Answer:D lead

Explanation:

Based on the graph, it appears that the air quality standards have had the greatest impact on lead.

National air quality refers to the level of pollution in the air across an entire nation.

The graph shows a significant decrease in lead concentrations since 1990 when the EPA began regulating lead emissions. The other pollutants, while still showing improvement, do not have as drastic of a decrease as lead.

The graph provided shows the change in concentrations of common air pollutants over time. The pollutant that stands out the most in the graph is PM (particulate matter), as it shows a significant decrease in concentrations over time.

This suggests that the air quality standards set by the EPA have had a positive impact on reducing PM concentrations in the air. Ozone, NO (nitrogen oxide), and lead also show some level of decrease in concentrations over time, but the decrease is not as significant as that seen with PM.

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Answer:

The population of the Beatles would grow and eventually lead to overpopulation.

Answer:

C. Application of toxic fertilizers to crops

Explanation:

Water pollution is defined as the contamination of water due to several human activities. Several causes of water pollution include use of fertlizers, construction of turbine, industrial waste, and sewage dumping.

Use of toxic fertizers directly affects the loss of water quality as fertilizers and pesticides are made up of chemicals such as phosphate and ammonia. The fertilizers and pesticides precipitate through the soil and mix with ground water that directly affect the quality of water. Residues of chemicals mix with river water due to flooding, excess irrigation, heavy rainfall and enter in the food chain. These chemicals are then have lethal effect in living organisms.

Hence, the correct answer is C.

Answer:

D. Transverse waves

Explanation:

Ocean waves are also transverse, and these are used for many recreational activities such as surfing and swimming. They can also be used to generate renewable electricity from the wave motion.

--Hops

Answer:

The square of the ratio of the periods equals the cube of the ratio of radii.

Explanation:

German astronomer Johannes Kepler who lived from 1571-1630, gave the three descriptive laws called Kepler's law. He derived this law after he had study and make observations of planetary motion done by Tycho Brahe.

The Kepler's third laws state that the square ratios of the period equals the cube ratio of the distance or radii.

From Kepler's third law, the square of the ratio of the periods equals the cube of the ratio of the radii.

Kepler's third law states that the ratio of the square of an object's orbital period with the cube of the semi-major axis of its orbit is the same for all objects orbiting the same primary.

The law is simplified using mathematical formula as follows;

T² ∝ R³

[tex](\frac{T_2}{T_1})^2 = (\frac{R_2}{R_1} )^3[/tex]

where;

Thus, we can conclude that from the Kepler's third law, the square of the ratio of the periods equals the cube of the ratio of the radii.

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Answer:what type of what

Explanation:

Answer:

All types of ecosystems fall into one of two categories: terrestrial and aquatic.

Explanation:

Terrestrial ecosystems are land-based, while aquatic are water-based.

Answer:

Explanation:

Many non-native plants are introduced through people dumping their aquariums into bodies of water

People who release non-native animals from captivity (Fish are a big one)

people who bring soil on their boots back from traveling to a different country my introduce non-native bacteria cultures

Answer:

Human travel can lead to an increased risk of invasive species. Native species—both animals and plants—can stow away on cars, trains, boats, and airplanes that bring them to another ecosystem. Climate change also can play a role. Human activity causes increased levels of carbon dioxide and other greenhouse gases in the atmosphere, which in turn creates an increase in global temperatures. Because all species are adapted to a specific climate, climate changes can result in non-native species spreading into other ecosystems.

Explanation:

i am doing the same lesson too:)

Answer:

Option A, accumulation

Explanation:

As we can see in the image,  the water gets heated and convert its pahse from liquid to gas i.e from liquid water to water vapor.  As it rises above, it condenses and converts from water vapor into liquid water. The liquid water then moves in the downward direction and collects at the base. This process of collection at base can be related to accumulation of running water.

Option A is correct

Answer:

True

Explanation:

Yes this is true due to advancements in genetic engineering.

A bacterium was transformed by scientists into a plant with the main purpose of the production of biofuel. The microorganism was expelled of its fatty acid but this synthetic route of extraction and purification is however very expensive.

The production of this fuel has several problems such as insufficient rates to meet the production rates of demand for biofuel while being competitive with oil and other forms of biofuel.

Answer:

Luisa's Observation.

Explanation:

Luisa's observation is explained better than David's was, and judging by the observations, David studied the same material, while Luisa's observation contained different description, meaning that there was likely more than one substance being observed and studied.

David researched the same material, according to the observations, but Luisa's observation is better explained than David's, and since Luisa's observation had different description, it is possible that more than one item was being viewed and studied.

All occurrences of a random variable are referred to as observations of that variable in statistics. The actual collection of data points is also referred to as a sample of a particular population of observations.

Any value calculated from your sample data is referred to as a sample statistic (or simply a statistic). The sample average, median, sample standard deviation, and percentiles are a few examples.

Because a statistic is based on data gathered through random sampling, which is a random experiment, it is a random variable.

Therefore, Luisa's observations  would prove more useful to a chemist.

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