what does a target cell require to respond to an extracellular signal molecule?

Answers

Answer 1
A specific protein called a receptor

Related Questions

Es responsable del pensamiento y de que conocemos como sentimientos

Answers

El cerebro es responsable del pensamiento y de que conocemos como sentimientos

What role do decomposers play in the movement of matter
through an ecosystem?

Answers

Decomposers play a critical role in the flow of energy through an ecosystem. They break apart dead organisms into simpler inorganic materials, making nutrients available to primary producers

five impacts of human activity in natural resources​

Answers

Overpopulation, pollution, burning fossil fuels, and deforestation. Just a couple examples for you.

Hope it helps!

A 100% efficient light bulb is the one that converts all the electricity to light without producing any heat. which of that following methods is the most economical way of increasing the light output from a lamp ?
a) Replace the light with a new one
b) Clean the light surface
c) Switch of the bulb
d) None of the above

Answers

Answer:

d

Explanation:

Buying a new light bulb will cost money so it is economically inefficient. Cleaning the light surface doesn't increase the light output from the lamp and switching off the bulb means no light at all, therfore the answer is none of the above.

Which biomolecule has a carbon-nitrogen bond?
The answers are
Starch
Glucose
Protein

Answers

Answer:

protein

Explanation:

it is called a peptide bond

what does the axon of a postganglionic neuron synapse with?

Answers

The autonomic nervous system (ANS), fibers from the central nervous system to the ganglion are known as preganglionic fibers. The axon of a postganglionic neuron synapse with synapses with the effector organ.

Preganglionic neuron is known too be the first neuron in the two-neuron chain found in the brain or spinal cord. Its axon is known to have synapses with the postganglionic neuron.

Postganglionic neuron is also known as the second neuron that is found in the automatic ganglion. Its axon synapses is connected to the effector  organ.

Preganglionic axons synapse that is found in the sympathetic chain ganglia with a postganglionic neuron.

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Select the correct answer.

The image shows EKGs of a person with normal heart waves and of a person having tachycardia. Based on this image, what kind of condition
is tachycardia?

Answers

The correct answer based on the question made in the picture is A. the heart beats abnormlly fast.

What kind of condition is tachycardia?

Tachycardia is a heart condition in which the heart rate increases over 100 beats per minute. This occurs when cardiac impulses do not work properly and this in the long term can cause severe problems.

There are several types of tachycardia, It is not always a problem, sometimes It can be in response to exercise or stress.

In the types of tachycardia we can find: atrial fibrillation, ventricular tachycardia, atrial flutter, supraventricular tachycardia, ventricular fibrillation.

Therefore, we can confirm that the correct answer based on the question made in the picture is A. the heart beats abnormlly fast.

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Which food group is shown in the picture below?

Answers

Answer:

The food group is Protein

The leaves of a plant are dotted with openings known as stomata when open stomach allow the plant to exchange to games and allow moisture to evaporate helping to draw water from the roots up into the plant these activities help the plant to

Answers

To make food for themselves of-course

Helpppp
A community needs more electrical energy. The community is located in an area with the following characteristics : Average wind speed of 15 to 20 mph . One small river with slow currents Rainy conditions most of the year No coal or oil deposits Based on this information, which alternative energy source should the community consider investing in?
A Biopower
B hydropower
C Solar energy
D Wind energy
I’ll make you Brianlist if you give me the correct answer.

Answers

The answer is D or C

How does how fast you're breathing affect cellular respiration.

Answers

Answer:

the breathing rate and volume of each breath increases to bring more oxygen into the body and remove the carbon dioxide produced. the heart rate increases, to supply the muscles with extra oxygen and remove the carbon dioxide produced.

HELP PLZ ASAP true or false
1 then an organism is asymetrical it means that no matter where you slice it in half the two sides are always mirror imiges true or false?

2 The phylum cnidaria is charicterized by organisms that shoot barb cells contains a potint toxin true or false?

Answers

Answer:

1 false

2 true

Explanation:


A. Val Pro Pro

B. Leu His Ser

C. Pro Val Pro

D. Val Leu Pro

Answers

The answer is D. That’s all I have

Look at the diagram. Name organ 1.

Answers

Answer:

Organ 1: Stomach

Explanation:

The stomach holds food while it is being mixed with stomach enzymes. These enzymes continue the process of breaking down food into a useable form. The liver regulates most chemical levels in the blood and excretes a product called bile. This helps carry away waste products from the liver. All the blood leaving the stomach and intestines passes through the liver. The large intestines are to absorb water and salts from the material that has not been digested as food and get rid of any waste products left over. By the time food mixed with digestive juices reaches your large intestine, most digestion and absorption have already taken place. The small intestines have three parts:  the duodenum, jejunum, and ileum. It helps to further digest food coming from the stomach. It absorbs nutrients (vitamins, minerals, carbohydrates, fats, proteins) and water from food so they can be used by the body. The small intestine is part of the digestive system.

which element must your food contain so that your body can make new nucleic acids?

Answers

Answer:

A or C i put my bets on A

Explanation:

Answer:

D

Explanation:

D

Which statement explains what happens as magma rises inside a volcano?

Gases will contract in the chamber.
The pressure of the gas will disappear.
The magmatic pressure decreases.
Magma moves to other chambers.

Answers

Answer: the answer is C which is “the magmatic pressure decreases“

The magma rises and collects in chambers within the crust and as magma fills the chamber, pressure grows. If the pressure gets high enough  the magma can break through the crust and spew out in a volcanic eruption., but If the pressure is low, do not break the crust. Thus the correct option is C.

What is molten magma?

Magma is a molten and semi-molten rock mixture present under the surface of the Earth.

This mixture is usually made up of four parts such as a hot liquid base, called the melt,  minerals crystallized by the melt, solid rocks incorporated into the melt from the surrounding confines, and dissolved gases.

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What are the two types of limiting factors and how do they differ?

Answers

Answer:

Limiting factors fall into two broad categories: density-dependent factors and density-independent factors. ... Other density-independent factors include hurricanes, pollutants, and seasonal climate extremes. Density-dependent limiting factors tend to be biotic—having to do with living organisms.

Explanation:

answer up there. answer up there. answer up there. answer up there

The two types of limiting factors are density-dependent factors and density-independent factors. These differ in their influence by the size of a population.

What are limiting factors?

A limiting factor is a variable of a system which causes a noticeable change in the output or another measure of a type of system. These are present in a limited amount.

Limiting factors are of two types: Density-dependent factors and density-independent factors. Density-dependent factors have varying impacts according to the size of the population. Density-dependent factors include food availability, predator density and disease risk. Density-independent factors are not influenced by a species population size. Density-independent factors include temperature, altitude, amount of sunlight, etc.

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I dont know to do delate

Answers

Answer:

what to delete if you say the full information I could help you to solve

Cell membranes:
What are all the main components of a cell membrane responsible for?
Please give a list of all their functions :))

Answers

Answer:

Nucleus

it is responsible for control all the function

which activities of the body are controlled by the autonomic nervous system?

Answers

Explanation:

The autonomic nervous system controls internal body processes such as the following:

Blood pressure

Heart and breathing rates

Body temperature

Digestion

Metabolism (thus affecting body weight)

The balance of water and electrolytes (such as sodium and calcium)

The production of body fluids (saliva, sweat, and tears)

Urination

Defecation

Sexual response

How is soil polluted?Explain.​

Answers

Answer:

Main Causes of Soil Pollution

1. Industrial Activity. Industrial activity has been the biggest contributor to the problem in the last century, especially since the amount of mining and manufacturing has increased.

2. Agricultural Activities. The utilization of chemicals has gone up tremendously since technology provided us with modern pesticides and fertilizers.

3. Waste Disposal.

Explanation:

got the information from the internet

What type of animal symmetry also includes the formation of a head? What is this process called?
Those with radial symmetry display cephalization.
Those with radial symmetry have an oral side.
Those with asymmetry display cephalization.
Those with bilateral symmetry display cephalization.

Answers

Bilateral symmetry display cephalization

Answer:

Bilateral symmetry display cephalization

Explanation:

Why is heart disease so prevalent in the United States?

Answers

Answer:  

High blood pressure, cigarette smoking, and high blood cholesterol are still major contributors to the national epidemic of cardiovascular disease. High blood pressure affects approximately 1 in 3 adults in the United States,3 and only about half of them have it under control.

Explanation:

A 10kg mass is lifted to a height of 2m. What is its potential energy at this position?

Answers

Answer:

m=10kg h=2m Ep=mgh Ep=(10kg)(9.8 m/sec2)(2m) Ep=196J

Explanation:

The formula for potential energy depends on the force acting on the two objects. For the gravitational force, the formula is P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters.

Which of the following is NOT a risk factor for multiple sclerosis?

Answers

Answer:

c is correct

Explanation:

Why do yeast not contain chlorophyll?

1. Yeast does not need to absorb sunlight to make energy.
2. Yeast can only survive in the dark.
3. Yeast does not need oxygen to make energy.
4. There is not enough space in the yeast to contain chlorophyll

Answers

1. Yeast does not need to absorb sunlight to make energy because they do not photosynthesize.

Some jellyfish are transparent, how will this affect their ability to survive?

Answers

So predators cannot see it as well

Explanation:

It will affect their ability to survive because...since Jellyfish bodies are transparent, that means they are less visible to predators or threats. Which will affect their way to survive because since they are less visible to predators, it gives them a better chance for survival since their predators can't see them very well. It also gives them a better chance for survival because hunters won't be able to see them well enough to catch them because they blend in with the water, which is called transparent.

Hope this helps!

Outline the fate of food after absorption.​

Answers

Answer:

The small intestine absorbs most digested food molecules, as well as water and minerals, and passes them on to other parts of the body for storage or further chemical change. Specialized cells help absorbed materials cross the intestinal lining into the bloodstream.

Put the following fossils into the correct order, from oldest to most recent, based on when evidence of their evolution first appears in the fossil record.
I. Humans
II. Trilobites
III. Winged insects
IV. Dinosaura
V. Bacteria
A. V, III, IV, II, I
B. II, V, IV, I, III
C. V, II, III, IV, I
D. I, II, V, II, IV

Answers

Answer:

the answer would be C.

Explanation:

V,II,III,IV,I

The correct option is  C. V, II, III, IV, I

BacteriaTrilobitesWinged insectsDinosauraHumansWhat is fossils?

Fossils exist the preserved remains of plants and animals whose bodies existed buried in sediments, such as fossil , under ancient seas, lakes, and rivers. Fossils even contain any preserved trace of life that exists typically more than 10 000 years old.

A fossil exists as any preserved stays impression or trace of any once-living thing from a past geological age. Examples contain bones, shells, exoskeletons, stone patterns of animals or microbes, objects maintained in amber, hair, petrified wood, oil, coal, and DNA remnants.

The correct option is  C. V, II, III, IV, I

BacteriaTrilobitesWinged insectsDinosauraHumans

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what is the transfer of genes from one population to another called ?

Answers

Answer:

Gene flow

Explanation:

Answer:

Gene flow is the movement of genes into or out of a population. Such movement may be due to migration of individual organisms that reproduce in their new populations, or to the movement of gametes (e.g., as a consequence of pollen transfer among plants).

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