15. Enzymes are
sugars
proteins
acids
fats

The hydrophobic tails of phospholipids prohibit polar molecules and ions from diffusing in and out, acting as a semipermeable barrier. Generally speaking, carrier proteins and channel proteins are the two groups of proteins that mediate facilitated diffusion.

Within the bilayer, plasma membrane phospholipids can migrate. Membranes change from a fluid to a solid state as the temperature decreases. The fluidity of the membrane is affected differently by cholesterol, a steroid. The transport of phospholipids is slowed down at warm temperatures by it. Thus, polar and charged molecules including ions, nucleosides, amino acids, and carbohydrates can pass across the plasma membrane due to facilitated diffusion.

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The following are the differences of human and frog digestive systems:

1. Humans possess stable teeth which they use for chewing while frogs do not possess stable teeth to grip their prey.

2. Chewing for humans is an automatic digestion while frogs do not chew their prey but swallow it instead.

3. Humans possess only a set of teeth while frogs possess two sets of teeth.

4. Human's tongue is inclined behind the mouth while the frog's tongue is inclined to the opening of the mouth.

5. Humans possess a lengthy small intestine while the frog possess a more concise small intestine.

6. The expulsion of undigested food in human is through the rectum while in frog, it is through the cloaca.

Hearing is correlated with auditory receptors, which are found in the internal ear and detect sound waves: a person whispering , a loud bang

One of the photoreceptors in the eye that allows for twilight or night vision are rods: night vision , shapes in a room after the lights are turned off

One type of photoreceptor found in the eye that contributes to colour perception is the cone: a rainbow outside a window

The nostrils contain olfactory receptors that sense smell: the smell of freshly baked cookies, stinky garbage

What is auditory receptors?

a mechanoreceptor cell in the inner ear that is responsive to sounds. The arrangement of the accessory sensory structures allows for the transmission of information to the brain's central nervous system by the hair-like projections (stereocilia and kinocilia) when the proper stimuli are applied.

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Blood collections should be spaced far enough apart to prevent shock due to low blood volume and anemia.

When blood is collected, it is necessary to remove a certain amount of blood from the body. If the collections are too close together, the body may not have enough time to replenish the lost blood volume, leading to shock.

Shock is a serious condition that can result in low blood pressure, organ failure, and even death.

Anemia is another potential risk of frequent blood collections. Anemia is a condition where the body does not have enough red blood cells to carry oxygen to the tissues.

Frequent blood collections can lead to a decrease in the number of red blood cells in the body, increasing the risk of anemia.

Therefore, it is important to space out blood collections far enough apart to allow the body to recover and replenish the blood volume before another collection is performed.

This helps prevent the risks associated with low blood volume and anemia.

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Answer:

The four nitrogenous bases are A, T, C, and G. They stand for adenine, thymine, cytosine, and guanine.

Explanation:

Answer:

sucrase - sucrose

Explanation:

Answer:

They have thick fur on their bodies.

They are cold-blooded to stay warm.

a dichotomous key is a tool used to identify organisms based on their characteristics and can be created by following a systematic process of elimination through a series of questions.

The purpose of a dichotomous key is to help identify and classify organisms based on their physical characteristics by using a series of questions with two possible answers that eventually lead to the identification of a specific organism.

Does the cap have scales or warts? (Go to 2 if yes, go to 3 if no)

Does the cap have warts or spots? (Go to 4 if yes, go to 5 if no)

Is the cap slimy or smooth? (Go to 6 if slimy, go to 7 if smooth)

Does the mushroom have a ring on the stem? (Go to 8 if yes, go to 9 if no)

Is the cap convex or flat? (Go to 10 if convex, go to 11 if flat)

Does the mushroom have a veil that covers the gills? (Go to 12 if yes, go to 13 if no)

Does the mushroom have a partial veil? (Go to 14 if yes, go to 15 if no)

Does the stem have scales or warts? (Mushroom A)

Does the stem have a bulbous base? (Mushroom B)

Does the cap have a central depression? (Mushroom C)

Does the cap have a nipple-like protrusion in the center? (Mushroom D)

Are the gills free or attached to the stem? (Mushroom E)

Does the stem have a ring that easily comes off? (Mushroom F)

Are the gills white or cream-colored? (Mushroom G)

Are the gills pink or brown? (Mushroom H)

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Answer:

Plasma membrane

Explanation:

Answer:

b

Explanation:

Answer:

The correct answer is : Freezing and thawing of water breaks the rocks into pieces.

Explanation:

See picture.

Answer:

Your lungs contain many small, elastic air sacs called alveoli. With each breath, these air sacs take in oxygen and release carbon dioxide. Normally, this exchange of gases occurs without problems. But sometimes, the alveoli fill with fluid instead of air, preventing oxygen from being absorbed into your bloodstream.

Explanation:

Answer:

The fluid represents the outermost layer of the alveolar surface that is directly exposed to air and thus to the environment. Alveolar fluid prevents desiccation of the epithelial cells and also functions as a physical protection barrier against inhaled particles and irritants.                                        Explanation:     hope this helps

Answer:

cooling the water

Explanation:

hot water has more energy tha cold water

Cooling the water will most effectively slow down the dissolving of a sugar cube in the water. This is basically based on the rate of dissolution property of water. Hence, option B is correct.

Dissolution refers to the process by which the solute dissolves into the solvent and forms a complete solution.

Rate of dissolution refers to the time taken by a solute to dissolve into a solvent. Any solid that has to be dissolved into water depends upon the collisions between the molecules of the water and the particles of the solid substance. So, to increase the frequency of these collisions, more energy is to be transferred to the system to increase the rate of dissolution.

And, while cooling the water, we are lowering the kinetic energy between the molecules of sugar and the water, that means the collisions will occur with less force. Hence, the rate of dissolution will be lowered.

Therefore, the correct option is B where the cooling of the water will decrease the rate of dissolution of the sugar cube in the water.

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If the extracellular K+ concentration is increased, the resting membrane potential of the cell will become more positive.

This is because K+ is a positively charged ion and is involved in maintaining the negative charge inside the cell. An increase in extracellular K+ concentration would result in a higher concentration gradient for K+ to move out of the cell, which would cause the membrane potential to become less negative.

Therefore, an increase in extracellular K+ concentration would depolarize the cell and make it more likely to fire an action potential.

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Answer:

Fungi is heterotypic animal because it takes its diet from its food chain like other animals.

Explanation:

Like animals fungi are also heterotrophs. Fungi use the complex compound in the form of carbon rather then fixing of carbon dioxide from the environment.

Most of the plants and some bacteria do the same things. Fungi does not fix nitrogen as well from the environment. Like other animals fungi takes other nutrients such as from diet. Some of the fungi multiply a-sexually and some fungi do have a-sexual and sexual reproduction with the alternation of generation. The fungi is used to commercial food industry to make the yeast for baking, brewing and for making cheese and wine. It is used for fermentation. It is also use in the form of enzymes and bacteria.

A. Hydrosphere

B. Biosphere

C. Biota

D. Geosphere

E. Atmosphere

The biosphere is made up of all habitats on Earth that support life.

The Earth itself can be referred to as Geosphere.

Biota refers to animal and plant life or flora and fauna.

Hydrosphere refers to water on and under the surface of Earth.

Atmosphere refers to gases encircling the Earth.

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It is comparable. Because they have the same parts that allow them to swim and perform similar activities.

Whales are mammals, which means they have three inner ear bones and hair, they breathe air, and the females create milk through mammary glands and suckle their young.

Mammals include dolphins, whales, seals, sea lions, and otters. They give birth to living children and nurse them with milk. Sharks, on the other hand, are fish, even if some give birth to live pups.

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Answer:

1. merkel cells

2. tactile corpuscle

3. lamellated (lamellar) corpuscle

4. nociceptors

Explanation:

Merkel cells are epithelial cells found around hair follicles which are capable of sensing gentle touch sensations such as, for example, tactile discrimination and environmental exploration. Tactile corpuscles are a class of nerve ending required for mediating sensitivity to light touch sensations. The lamellar corpuscles are another class of nerve ending capable of sensing deep touch sensations and vibrations. Finally, nociceptors are somatic sensory receptors capable of sensing noxious (damaging) stimuli.

1. Light-touch receptor located at the epidermal-dermal border: Tactile corpuscles (D)

Light-touch sensors called tactile corpuscles, sometimes referred to as Meissner's corpuscles, are situated near the epidermal-dermal boundary. They are located in the papillary layer of the dermis's dermal papillae, which are tiny, finger-like projections.

Particularly dense populations of tactile corpuscles can be seen in skin regions like the lips, palms, and fingertips that are sensitive to gentle touch.

2. Light-pressure receptor located in the papillary layer of the dermis: Merkel cells (A)

3. Deep pressure receptors: Lamellated corpuscle (C)

4. Receptors that respond primarily to pain and temperature: Nociceptors (B)

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answer

Homologous structures are present in many different species that share a common ancestor. the structure are anatomically similar and persist in the different species.

This is evident of divergent evolution because it shows that different animals come from a common ancestor but evolve o become different species from each other.

Answer:

Explanation:

It upsets the natural food webs in the area

i think B is the answer..

sorry if its not.

Corporations consider the ease of obtaining municipal documentation for taxes when they consider investing in a particular country.

When corporations intend to invest in a country, they consider several criteria. These include the low cost of starting a business, equal opportunities for employment, and favorable government policies. Let us see the various criteria that corporations consider when investing in a country:

Low cost of starting a business: When businesses seek to expand their reach, they want to do so at a low cost. Therefore, they seek out countries that offer a low-cost environment. This includes countries with low taxes, affordable energy, and other factors that reduce the cost of starting a business. Equal opportunities for employment: Businesses want to recruit and retain the best talent.

Therefore, they tend to invest in countries that provide equal opportunities for employment. Countries that have favorable hiring policies and do not discriminate against any segment of the population are more likely to attract foreign investment. Favorable government policies: Governments that promote foreign investment tend to attract more businesses.

Countries that offer tax incentives, subsidies, and other benefits to businesses that invest in the country tend to attract more foreign investment. Additionally, governments that have a favorable political climate tend to attract more foreign investment. Municipal documentation for taxes: Businesses must comply with local regulations and pay their fair share of taxes.

Therefore, corporations consider the ease of obtaining municipal documentation for taxes when they consider investing in a particular country.

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Answer:

a: 30 percent

b: 1.7 percent

c:68.7 percent

Answer:

A.

Explanation:

From the name, "unicellular" you can deduce that "uni" means one, and vice versa for multicellular "multi".

Answer: 50%

Explanation i forgort

Answer:

B) selective breeding produces changes in genes

Explanation:

This is the process in 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.

Answer: all of above

Explanation:

Answer:

Explanation:

Bascially just count starting from 1 (skip the transition metals) and put helium at 2 valence. Everything else is just a regular pattern.

The most appropriate step that Sabastian would take is; Sebastian will need to use pliers to pull the remaining stem of the feather from the bird and then call the vet. Option B

In the case of a broken blood feather, it's important to remove the remaining stem to prevent further bleeding and reduce the risk of infection.

A blood feather is a new growing feather that has a blood suply running through its shaft. If the blood feather is left, it could cause more bleeding that could be more problematic for the bird.

Afterward, Sebastian should contact his veterinarian for further advice and any necessary treatment.

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If we add more carbonic acid then the equilibrium position would shift to the right

A chemical reaction at equilibrium shifts to the right to offset the change when additional reactants are added. Le Chatelier's principle, which holds that an equilibrium system will respond to a change by moving in a direction that minimizes the influence of that change, governs this movement.

We are adding more carbonic acid which is a reactant thus the equilibrium would shift to the right.

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Answer:

a

Explanation:

edge

When microscopes were first used hundreds of years ago, scientists discovered that a single drop of water contains many particles that the human eye is unable to detect on its own. This statement best describes the use of microscopes over the last several hundred years. Thus, option A is correct.

The statement that best describes the development of the theories that has been connected microscopic as well as macroscopic phenomena has took several hundred years for the scientists just to develop current theories, as well as they are still being revised to this same process.

Most of the scientific theories has been involving the microscopic and the macroscopic phenomenon which have been taken several years to be developed atlast however, this theories are still under revision till date. The microscopes used today are much more powerful and have allowed scientists to make discoveries about smaller living things.

Therefore, This statement best describes the use of microscopes over the last several hundred years. Thus, option A is correct.

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The overall efficiency of the light-dependent reactions can be estimated by comparing the energy content of the produced ATP and NADPH to the total energy input from the absorbed photons.

ATP, or adenosine triphosphate, is a vital molecule found in all living organisms. It serves as the primary energy currency of cells, providing the necessary fuel for various biological processes. ATP consists of three components: a ribose sugar molecule, a nitrogenous base (adenine), and three phosphate groups.

The energy stored in ATP is released when the terminal phosphate group is enzymatically removed, resulting in the formation of adenosine diphosphate (ADP) and an inorganic phosphate molecule (Pi). This process is known as hydrolysis. When energy is required for cellular activities such as muscle contraction, active transport, or synthesis of molecules, ATP is broken down to ADP, and the released energy is harnessed to drive these processes.

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Answer:

just watch the video it gives you tge anwers