Diffusion is a process which does not
require any energy. Why is this?
A. Because molecules move down an equilibrium slide.
B. Because molecules move down an active transport
tunnel.
C. Because molecules move down a concentration gradient.

Answers

Answer 1

Answer:

C. Because molecules move down a concentration gradient

Explanation:

Molecules move from a high concentration to a lower concentration

Answer 2
The answer is C , because molecules move down a concentration gradient

Related Questions

most of the iron that is removed from degraded hemoglobin is:

Answers

Answer:

Most of the iron that is removed from degraded hemoglobin is: recycled to the red bone marrow.

Most of the iron removed from degraded hemoglobin is recycled in the red bone marrow.

What is Hemoglobin?

Hemoglobin is defined as an iron-containing oxygen-transporting metalloprotein present in the red blood cells of nearly all vertebrates as well as the tissues of some invertebrates that carries oxygen from the respiratory organs in the blood to the rest of the body.

The blood protein hemoglobin that helps carry oxygen throughout the body and carbon dioxide to your lungs. High hemoglobin levels can cause dizziness, fatigue, easy bruising, and other symptoms.

The iron which is present in hemoglobin which is removed is recycled from the red bone marrow.

Thus, most of the iron removed from degraded hemoglobin is recycled in the red bone marrow.

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Which term can be used to describe the organizational level of the brain in the human body

Answers

Answer:

Organ system

Explanation:

hope this helps

The organization level of the body involves simple and complex arrangements. The level of the brain in the body can be described by organ. Thus, option b is correct.

What is the level of organization?

The arrangement of the various structures based on their complexity to form a whole organism and biosphere is called the level of organization. It starts with chemicals that make atoms and molecules.

The molecular aggregate makes the cells that bind together to form a tissue. The structurally similar tissues make the organ. The nerve, endothelial, and glial cells make the tissue of the brain.

The brain is an organ that together with the spinal cord makes the organ system called the central nervous system, or CNS. This organ system together with others makes the organism.

Therefore, option b. the brain is an organ.

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Your question is incomplete, but most probably your full question was, Which term can be used to describe the organizational level of the brain in the human body?

cellorganorgan systemtissue

Explain the importance of decomposers to a food web and their interaction with quaternary consumers.

Answers

Answer:

Decomposers recycle the nutrients in dead organisms allowing it to completely travel through the food web cycle, from producer, to consumer and back again

Explanation:

This recycling also applies to quaternary consumers, the predators that generally have no natural enemies, allowing the nutrients in their bodies to be recycled.

Answer:

Decomposers recycle the nutrients in dead organisms allowing it to completely travel through the food web cycle, from producer, to consumer and back again

Explanation:

please help me with this question please !

Answers

Answer:

(C) is true

Explanation:

Sorry if I did it wrong

Calculate the magnification of an object with length 4cm , if the length of the drawing is 40cm

Answers

Answer:

-0.33

Explanation:

Which organisms live in the neritic zone?
A. anglerfish
B. chemosynthetic bacteria
C. phytoplankton
D. all of the above

Answers

I’m sure that phytoplankton live in the neritic zone but the "all of the above" choice made me overthink. I’d choose between answers choices B or C.
Hopefully this helped a little :(

bio

pls help!!

—————-

Answers

Answer: it's the 3rd one " the brown rabbit in parental generation heterogeneous for the fur color trait." because the brown rabbit is dominant and the black rabbit is recessive.

Explanation:

How do cells maintain water balance through osmosis? (Choose 2)
If
salt water fish iS placed in a fresh water aquarium, water will leave the fish's cells.
In the experiment, the only isotonic solution was the 10% salt water solution.
The egg swelled in distilled water because it is hypotonic to the egg's interior.
The concentration of solute iS greater inside the egg than it is in the Kayro syrup.
The egg swells when placed in a hypertonic solution.
(H.B.2C. 2) P

Answers

Answer:

1477

Explanation:

76667

clusters of chlorophyll and accessory pigments are called ________.

Answers

It is photo systems.

Some predators hide in plain sight before ambushing their prey by virtue of their ____________________.

Answers

Answer:

Some predators hide in plain sight before ambushing their prey by virtue of their  Physical adaptations to their environment_.

Explanation:

it allows them to sneak up on their prey and get them before they can react

(aka: camouflage)

PLEASE HELP FAST!!! I WILL GIVE BRAILIST!!! NEED ANSWERS FAST! I DONT NEED A LONG ANSWER. 1. what r the 3 main types of nucleic acids. 2. the monomer is...

Answers

Answer:

1) DNA, RNA, and Artificial nucleic acid.

2) nucleotides

Explanation:

Nucleic acids function to create, encode, and store biological information in cells, and serve to transmit and express that information inside and outside the nucleus.

Nucleic acids are giant biomolecules made of monomers called nucleotides. Nucleotides have three components: pentose sugar (5-carbon sugar), phosphate group, and nitrogenous base.

I hope this helps!! Brainliest?? Anyways have a great day!! :))

un estudio sanguineo al que fue sometido carlos arrojo los siguientes resultados (mg/ml): glucosa 90, trigliceridos 120, hemoglobina,14 y acido urico 6.¿ cual de ellos corresponde a un lipido?

Answers

un estudio sanguineo al que fue sometido carlos arrojo los siguientes resultados (mg/ml): El que corresponde a lípidos son los triglicéridos.

Los resultados del estudio de sangre al que fue sometido Carlos son:

glucosa = 90 mg / ml triglicéridos = 120 mg / ml hemoglobina = 14 mg / ml ácido úrico = 6 mg / ml

A partir del resultado dado, la opción que corresponde a los lípidos son los triglicéridos.

                  Los triglicéridos son lípidos (grasas cerosas) que proporcionan energía al cuerpo. Los triglicéridos son producidos por nuestro cuerpo y se obtienen de las comidas que ingerimos. Un triglicérido es un tipo de lípido compuesto por glicerol y tres moléculas de ácidos grasos.

                  La glucosa tiene la fórmula molecular C6H12O6 y es un azúcar simple. La glucosa es el monosacárido más ubicuo que es un tipo de carbohidrato. La glucosa es producida principalmente por plantas y algas cuando realizan actividad fotosintética a partir del agua y el dióxido de carbono con la ayuda de la luz solar, donde se utiliza para crear celulosa en las paredes celulares.

                  La hemoglobina es una proteína que se encuentra en los glóbulos rojos (RBC) que transporta oxígeno a los órganos y tejidos y transporta el dióxido de carbono (CO2) de los órganos y tejidos de regreso a los pulmones.

                  El ácido úrico es un producto de desecho que puede detectarse en la sangre. Se forma cada vez que el cuerpo descompone las purinas. La mayor parte del ácido úrico se disuelve en la sangre, viaja a través de los riñones y se excreta en la orina.

Por tanto, de la explicación anterior, podemos concluir que el resultado que corresponde al lípido son los triglicéridos.

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Wetlands provide all of the following benefits except

Answers

Answer:

Wetlands provide many societal benefits: food and habitat for fish and wildlife, including threatened and endangered species; water quality improvement; flood storage; shoreline erosion control; economically beneficial natural products for human use; and opportunities for recreation, education, and research.

Explain why quaternary consumers occupy the top position in the pyramid of energy.

Answers

Answer:

quaternary consumers, they occupy the top position in a pyramid because nothing preys upon them in return. also a prey of one species could be another predator of species.

Explanation:

Answer:

They occupy the top position in a pyramid because nothing preys upon them in return. Also, a prey of one species could be another predator of species.

Explanation:

Studying Science tends to follow the scientific
method:
1. Make an
2. Ask a testable
3. Construct a plausible
how
4. Make a
you think the results will go
5. Conduct an
6. Record accurate & valid
Word bank: prediction, results, question,
hypothesis, experiment, observation

Answers

1.observation
2. Question
3.hypotheses
4.prediction
5.experiment
6.results

which enzyme pairs corresponding nucleotides to a preexisting dna chain in order to synthesize a new strand of dna?

Answers

Answer:

✓ DNA polymerase

Explanation:

What are the three kinds of muscle tissues? Where is each located? ​

Answers

Answer:

Cardiac, smooth, and skeletal muscle tissues.

Explanation:

Muscle tissue is classified into three types: cardiac, smooth, and skeletal. Cardiac muscle cells are found in the heart's walls, are striped (striated), and are under involuntary control. Except for the heart, smooth muscle fibers are found in the walls of hollow visceral organs (such as the liver, pancreas, and intestines), are spindle-shaped, and are similarly under involuntary control. Skeletal muscle fibers are found in muscles that are connected to the bones. They have a striated look and are controlled voluntarily.

Answer:

The 3 types of muscle tissue are cardiac, smooth, and skeletal. Cardiac muscle cells are located in the walls of the heart, appear striped (striated), and are under involuntary control

Explanation:

any nerve cell that conducts a signal towards the spinal cord/brain is called

Answers

Answer:

I believe A sensory/afferent neuron

Explanation:

Which of the following allows an exchange of nutrients and waste material between blood and tissue?

Answers

Answer:

b

Explanation:

I GIVE BRAINLIST ON ALL MY QUESTIONS!!
Which of the following statements is true about photosynthesis and cellular respiration?

A) the steps in processes are very similar to each other

B) photosynthesis occurs in plants; cellular respiration occurs in animals

C) the chemical equations for the processes are opposite of each other

D) both processes are carried out in the same location of the cell

Answers

Answer:A or C

Explanation:im not really sure but yeah

Answer:

The answer is C

Explanation:

I took the quiz

and the other answers for the quiz are

Q1: oxygen

Q2: Glucose breakdown would nearly stop or cease entirely.

Q3:anaerobic respiration

Q4:The chemical equations for the processes are opposite of each other.

Give advantages of endothermic animals

Answers

Answer:

The advantages of endothermy are well known: the ability to occupy thermal niches that exclude many ectothermic vertebrates, a high degree of thermal independence from environmental temperature, high muscular power output and sustained levels of activity, to name but a few.

The major advantage of endothermy over ectothermy is decreased vulnerability to fluctuations in external temperature. Regardless of location (and hence external temperature), endothermy maintains a constant core temperature for optimum enzyme activity.

Question 6
What would an ecologist use latitude to describe?
O A) the average weather conditions of a specific location
OB) the distance of a point from Earth's prime meridian
O C) the distance of a point from the Earth's equator
D) the distance of a point from the Earth's north pole
Next Question
what would and ecologist use latitude to describe?

Answers

Answer:

c the point of distance from the earths equator

Explanation:

Latitude measures equator distance. Latitude lines travel east-west parallel to the equator from 0 degrees latitude.Therefore, option (C) is correct.

What is a latitude?

Latitude is a type of coordinate that indicates the position of a place on the surface of the Earth or another celestial body in relation to the north and south poles. When expressed as an angle, latitude can run anywhere from –90 degrees at the south pole to 90 degrees at the north pole, with 0 degrees denoting the equator.

The equator, located at 0 degrees, the Tropic of Capricorn, located at 23.5 degrees south, the Tropic of Cancer, located at 23.5 degrees north, the Antarctic Circle, located at 66.5 degrees south, the Arctic Circle, located at 66.5 degrees north, the South Pole, located at 90 degrees south, and the North Pole, located at 90 degrees north are the seven significant lines of latitude.

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__________________________ a. A laboratory in a major university surveys all the reactions involving bromine. __________________________ b. A pharmaceutical company explores a disease in order to produce a better medicine. __________________________ c. A scientist investigates the cause of the ozone hole to find a way to stop the loss of the ozone layer. __________________________ d. A pharmaceutical company discovers a more efficient method of producing a drug. __________________________ e. A chemical company develops a new biodegradable plastic. __________________________ f. A laboratory explores the use of ozone to inactivate bacteria in a drinkingwater system.

Answers

Basic research generates basic knowledge. Applied research solves practical problems. Technological development provides tools and artifacts for research. A: basic research. B, C, F: applied knowdelge. B, D, E: technological development.

----------------------------------------

Let us first review some framework.

Basic research is directed to understand fundamental problems or issues. It is about generating basic knowledge. It constitutes the theoretical basis of knowledge on which applied science or technology is based.

Applied research makes use of the knowledge generated by basic science to solve practical problems. It generates knowledge that has practical use.

Technological development is one of the main tools of science. Its main function is to create useful tools and artifacts to facilitate the scientist's work.

Now let us classify each item.

a. A laboratory in a major university surveys all the reactions involving bromine. BASIC RESEARCH

b. A pharmaceutical company explores a disease in order to produce a better medicine. APPLIED RESEARCH and TECHNOLOGICAL DEVELOPMENT

c. A scientist investigates the cause of the ozone hole to find a way to stop the loss of the ozone layer. APPLIED RESEARCH

d. A pharmaceutical company discovers a more efficient method of producing a drug. TECHNOLOGICAL DEVELOPMENT

e. A chemical company develops a new biodegradable plastic. TECHNOLOGICAL DEVELOPMENT

f. A laboratory explores the use of ozone to inactivate bacteria in a drinkingwater system. APPLIED RESEARCH

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connective tissue structures that attach bone to muscle are called

Answers

Answer:

those connective tissues are called Tendons.

Explanation:

A tendon is a fibrous connective tissue that attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. tendons are often confused with ligaments, ligaments are fibrous connective tissue that attaches bone to bone, and usually serves to hold structures together and keep them stable

The are sharp teeth that we use for biting.Racoons are opportunistic feeders and will eat just about anything they can find. They will catch and eat invertebrates such as beetles, but also eat different fruits and vegetables and other plant matter. Based on their feeding habits, they would be categorized as

Answers

Omnivore/Scavenger (They went through my garbage and ate a leftover rotten cheeseburger ;-;)

What are the advantages of using CNG and LPG as fuels?​

Answers

Answer:

The advantages of using CNG and LPG as fuels are as follows: They both are cleanest burning fuels of all fossil fuels. They are less polluting, non-corrosive. They can be sent through pipes easily.

Which of the following statements are part of Koch’s Postulates? Check all that apply.

A - The disease-causing microorganism must be present in at least half of the cases of disease.

B -The microorganism can be isolated and grown in a pure culture.

C - The microorganism from the pure culture will cause the disease in at least 80% of healthy organisms.

D - A re-isolated microorganism may evolve into a different species than the original.

Answers

Answer:

B

Explanation:

'The microorganism can be isolated and grown in a pure culture', is the only correct answer.

The statement that a microorganism can be isolated and grown in a pure culture is a part of Koch’s Postulates.

What are microorganisms?

A microorganism, or microbe is an organism of microscopic size, which may exist in its single-celled form or as a colony of cells.

The possible existence of unseen microbial life was suspected from ancient times, such as in Jain scriptures from sixth century BC India. The scientific study of microorganisms began with their observation under the microscope in the 1670s by Anton van Leeuwenhoek. In the 1850s, Louis Pasteur found that microorganisms caused food spoilage, debunking the theory of spontaneous generation. In the 1880s, Robert Koch discovered that microorganisms caused the diseases tuberculosis, cholera, diphtheria, and anthrax.

Because microorganisms include most unicellular organisms from all three domains of life they can be extremely diverse. Two of the three domains, Archaea and Bacteria, only contain microorganisms.

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in humans, how many chromosomes are in each cell at the end of meiosis i? how many cells are produced?

Answers

Answer:

23 chromosomes and 4 cells

Explanation:

Where must an mRNA attach before protein production can begin?

Answers

Answer:

to a Ribosome

Explanation:

mRNA is produced inside the nucleus of a cell according to the genetic information present in the DNA of the cell. this process is known as Transcription.

Then it's sent to ribosomal subunits in the cytosol through nucleopores. then it attaches to the ribosome. the ribosome reads the nitrogenous base sequence and pairs the tRNAs with complementary nitrogenous bases. (your answer is here, but if you want to know more, continue reading it.)

Each tRNA contains a tri-nucleotide that is collectively known as an anticodon which has the complementary bases of the relevant codon on the mRNA.

Each tRNA has captured a protein. the type of protein is determined by the sequence of the anticodon.

It means two tRNAs with two different anticodons cannot bring the same protein to the ribosome.

the Ribosome separates the proteins attached to tRNAs and links them as a chain.

the final result is a polypeptide chain. I explained to you the basic protein synthetic process.

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All of the following substances are necessary for the survival of living things except —A.foodB.energyC.heliumD.water

Answers

Answer:

helium

Explanation:

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