Last question guys pls help me

Answer:

Autocrine:Autocrine signaling means the production and secretion of an extracellular mediator by a cell followed by the binding of that mediator to receptors on the same cell to initiate signal transduction. A well-characterized form of autocrine signaling is the secretion of IL-1 by macrophages.

Juxtacrine:In biology, juxtacrine signalling (or contact-dependent signalling) is a type of cell–cell or cell–extracellular matrix signalling in multicellular organisms that requires close contact. ... A membrane ligand (protein, oligosaccharide, lipid) and a membrane protein of two adjacent cells interact.

Endocrine:The endocrine system is the collection of glands that produce hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among other things.

Paracrine:Paracrine signaling is a form of cell signaling or cell-to-cell communication in which a cell produces a signal to induce changes in nearby cells, altering the behaviour of those cells. ... However, the exact distance that paracrine factors can travel is not certain.

Explanation:

Hope this helps you

Crown me as brainliest:)

Answer:

Reaction times slow with age, and they correlate with scores on tests of higher cognitive functions many of which also deteriorate with age. The age-related changes in reaction times account for a substantial proportion of the age-related variance in higher cognitive functions (e.g., Deary, 2000. 2000Reflexes do slow with age. Physical changes in nerve fibers slow the speed of conduction. ... But the effect of age on reflexes and reaction time varies greatly from person to person. You can actually slow down—even reverse—the effects of aging by staying physically active.The next time some twenty-something complains that they feel old, you can reassure them that their feelings are, in fact, not ridiculous. After studying 3,305 people ages 16 to 44, researchers found that the brain's response time begins to decline at age 24.

Explanation:

Answer:

Acids are sour, gives burning sensation, generally sticky, reacts with metals to produce hydrogen gas. Although bases are opposite as they are bitter, generally odorless (except ammonia), they are slippery; bases react with fats and oils. In phenolphthalein, indicator acids remain colorless, and base gives pink color.

Explanation:

An acid is a substance that releases hydrogen ions into an aqueous solution. A base is a substance that releases hydroxide ions.

Acids are sour, gives burning sensation, generally sticky, reacts with metals to produce hydrogen gas. Although bases are opposite as they are bitter, generally odorless (except ammonia), they are slippery; bases react with fats and oils. In phenolphthalein, indicator acids remain colorless, and base gives pink color.

Answer:

By dropping it in a volcano and pick it back up

Explanation:

Answer:

U gotta have a tester. DUH.

Answer:

penis

Explanation:

sex

Answer: XHY, XHXh

Explanation: I don't know if this is correct exactly but i just looked at my notes from my bio class because we did this previously so i think it's right

Tropical rainforest, temperate deciduous forest, temperate rainforest

I'm not too sure if the temperate forest is more diverse than the rainforest, so sorry if I'm wrong. Tropical rainforests are the most diverse because of the humidity, which is water. The water helps the soil stay healthy, which makes more plants, which makes more animals and insects.

I hope this helps! Good luck!

The biomes in order from the greatest to least diversity will be tropical rainforest, temperate deciduous forest, and temperate rainforest.

Tropical rainforests refer to the rainforests that occur in areas that have no dry season.

The temperate deciduous forest refers to a biome that always changes. It has seasons such as winter, spring, summer, and fall.

Temperate rainforest refers to the broadleaf or coniferous forests that receive heavy rain. This condition supports ferns, shrubs, etc.

It should be noted that the biome with the greatest diversity is tropical rainforest while the least is the temperate rainforest.

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Answer:

Eukaryotes

Explanation:

Are organisms wise cells have a nucleus and membrane bound organelles. Prokaryotes are organisms whose cells lack a nucleus. Eukaryotes carry out cellular respiration with the help of mitochondria. Mitochondria are organelles that produce the enzymes necessary to catalyze the series of reactions that produce ATP.

Answer :

D. Mitochondria ; acetyl CoA

pyruvic acid enters the mitochondria and is first converted into acetyl CoA

Parasitism. Ticks are complete parasites with no regard for the well being of their carriers.

The main difference between glucose and ATP is that Glucose is a storable form of energy, while ATP is a usable form of energy.

Glucose is storable form of energy because it can't be used as energy until it can be broken down by mitochondria of the cell while on the other hand, ATP is the usable form of energy which we can get from the break down of glucose molecules. Our cells use ATP as a fuel to do various activities of the cell so we can conclude that in glucose, energy is present in stored form whereas ATP is used as energy in various activities.

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Answer:

Each nucleotide is made up of a nitrogenous base, a pentose sugar, and a phosphate. The remainder of the molecule forms the pentose sugar.

Explanation:

Answer:

1. Volume

2. Mass

3. Units?  Metric System? I'm not sure about this one

4. Liters

5. Kilograms

6. Meters, but I'm pretty sure its the whole metric system

Explanation:

I have to go back and look at questions 3 and 6.

Hope I helped :)

Answer:

A

Explanation:

only one type of atom= (PURE SUBSTANCE not mixture)

is atom chemically bonded to another atom? (NO- element, not compound)

Answer:. Maybe A. Im not sure.

Answer:

Thought the process of discussion and ossmossis as due to gaseous exchange

Explanation:

With the aid of thin layers and large surface area animal are able to transport material thought the blood due to diffusion and osmosis In order to transport different materials from a every of high concentration to a low concentration until material is equally distributed throughout the body

Answer:

I think its C but I am not sure, I hope this helps :)

Explanation:

The statement 'particles move within channel proteins that pass through cell membranes' indicates the reason for which facilitated diffusion differs from simple diffusion (Option C).

Diffusion (both facilitated diffusion and simple diffusion) refers to the movement of substances across biological membranes from an area of high concentration to an area of low concentration.

Facilitated diffusion and simple diffusion are two types of passive transport that do not require energy to move molecules/ions in favor of a concentration gradient.

In facilitated diffusion, specific membrane proteins known as carriers or channels help to the movement of substances in favor of a concentration gradient.

Conversely, in simple diffusion, small molecules (e.g. CO2 and oxygen) freely diffuse across a selectively permeable membrane in favor of a concentration gradient.

In conclusion, the statement 'particles move within channel proteins that pass through cell membranes' indicates the reason for which facilitated diffusion differs from simple diffusion (Option C).

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Answer:

Many farmers use chemical herbicides to kill weeds and

insecticides to kill insects. Using genetic engineering, scientists

have developed ways to resist harmful crop pests. In this Gizmo,

you will use genetic engineering techniques to create genetically

modified corn.

Explanation:

Many farmers use chemical herbicides to kill weeds and

insecticides to kill insects. Using genetic engineering, scientists

have developed ways to resist harmful crop pests. In this Gizmo,

you will use genetic engineering techniques to create genetically

modified corn.

Answer:

I think petroleum

but I am not sure

Answer:

Wood

Explanation:

Wood comes from trees. Because trees can be grown, they are renewable.

Answer:

lithosphere

Explanation:

is up of brittle crust and the top part of upper mantel and also the coolest and most rigid part of the earth

Answer:

Lithosphere:

The lithosphere is the rigid outermost layer of the earth known as the mantle and the crust. And it is defined by its rigid mechanical properties.

Asthenosphere:

This layer is highly viscous and is very mechanically weak and is located below the Lithosphere it is also known as the ductile region of the upper mantle.

Mesosphere:

The mesosphere is the third layer of the atmosphere, directly above the stratosphere and directly below the thermosphere. In the mesosphere, temperature decreases as altitude increases.

Answer:

-mutualism

Explanation:

Hope it helps hehe

Answer:

D

Explanation: