Which correctly describes diffusion?

A) Movement of molecules from an area of high concentration to low concentration.

B) Movement of molecules from an area of low concentration to an area of high concentration.

C) Movement of water across a semipermeable membrane.

D) Movement of molecules that requires energy.

Answers

Answer 1

Explanation:

a) movement of molecules from an area of high concentration to low concentration


Related Questions

01:46:45
Which statement correctly describes a feature of the rock cycle?
O Rocks are preserved through the process.
O Rocks change from one type to another.
O Different rock groups are not related to one another.
O Rocks change from one type to another in a specific order.

Answers

Answer:

The correct description of a feature of the rock cycle is:

O Rocks change from one type to another.

Explanation:

Sedimentary, metamorphic, and igneous rocks are the three main rock types.  Together, they form the universal rock cycle.  A sedimentary rock, for example, can change from its known state to another state by passing through crystallization, metamorphism, erosion, and sedimentation.  There are no specific orders for the change.  The processes that they pass through determine the resulting type.

Answer:

Rocks change from one type to another.

Explanation:

How can embryos be more useful than adults to show evolutionary relationships among organisms?
Select one:

Related organisms always appear identical in embryonic stages.

Adults may have mutations that are not found in embryos.

Evolutionary relationships are more easily observed in more simple organisms.

Features found in embryos may not be found in adults.

Answers

Answer:

Related organisms always appear identical in embryonic stages.

Explanation:

Embryos of organisms that have a closer genetic relationship to one another tend to look similar for a longer period of time since they share a more recent common ancestor. Thus, embryology is frequently used as evidence of the theory of evolution and the radiation of species from a common ancestor.

Plz help!
I well mark brainliest!!

Answers

I think it’s a, hopefully you get it right!

Answer:

I think the answer is A.

Explanation:

I had the same exact test question and I put A so I hope this helps.

The benefit of social behavior that refers to searching for and collecting food is referred to as .

Answers

Answer:

Ngl bro i like your pfp, its fire

Answer:

Foraging

Explanation:

Alleles are represented by using letters. A dominant gene is
represented by what kinds of letters? Capital or small letters?

Answers

Answer:

Capital

- Refer to the basic theory in genetics.

what are the interactions between atoms that are hydrolyzed by fungi to release nitrogen from these molecules?

Answers

A small amount of nitrogen is fixed by lightning, but most of the nitrogen harvested from the atmosphere is removed by nitrogen-fixing bacteria and cyanobacteria (formerly called blue-green algae). The nitrogen cycle transforms diatomic nitrogen gas into ammonium, nitrate, and nitrite compounds.

How did the development of sexual reproduction affect evolutionary change?

Answers

500 million for the first picture and for the text i guess it evolved physical reproductive body cells and parts that makes sexual reproduction change as itself as well as birth due to not only human nature but man made things as well, example: hospitals, medicine, chemicals, etc.

Factorise completely pq - q?​

Answers

Explanation:

q(p-1) is the factorization of pq- q.

How is mitosis different in plants and animals?

Answers

The most important and observable difference in the plant animal cells mitosis is the cytokinesis.

In plants a new cell plate is formed between the daughter cells for the future cell wall, while in animal cells the cell membrane constricts to separates the parent cell into daughter cells

Answer:

The main difference is cell plate formation and how they form the daughter cells during cytokinesis. In plants, they lack centrosomes. A new cell plate will form between the daughter cells for the future cell wall. In animal cells the cell membrane will rather constrict to separates the parent cell into the daughter cells. Plants also do not undergo cell furrowing, unlike animals cells.

Which of the following will most likely result if all of the primary consumers are removed from this ecosystem?

Answers

Answer:

Secondary consumers will lower in numbers and the producers (plants) will be overabundant.

Explanation:

Okay so secondary consumers eat the primary consumers and the primary consumers eat the producers (plants). If there are no primary consumers, there is no one eating the plants which will lead to the producer population growing because there's less stopping them from growing in numbers. The secondary consumers will be in trouble because the secondary consumers don't eat plants. If there are no primary consumers, the secondary consumers won't be able to eat and the numbers of secondary consumers will decrease.

a lot more prodcers

Explanation:

A diet that is mainly based on unrefined whole grain, fruits, vegetables, other plant products, though may contain small amounts of animal-derived foods,
can be called all of these except for which?
Select one:
a. Prudent diet

b. Healthy diet
C. Plant-based diet
D.Western diet

Answers

Answer:

Healthy diet

Explanation:

all of those have vitamins and they provide us energy

Answer:

b. healthy diet

Explanation:

Because vegetables , fruits and other plant products are vitamins.

birth defects due to radiation are a concern also. why is a fetus especially at risk?​

Answers

a fetus is especially at risk because they are under developed and easily susceptible to sicknesses or radiation

Of the babies that survive, however, few will have birth defects related to the exposure, regardless of how much radiation they were exposed to. Large radiation doses to the fetus during the more sensitive stages of development (between weeks 2 and 18 of pregnancy) can cause birth defects, especially to the brain.

HOPE THAT HELPED :)

MARK ME BRAINLIEST PLEASE

What is the term for the absolute worst type of inflation, where prices skyrocket out of control and a nation's economy becomes at risk of collapse?

Answers

Answer:

Hyperinflation is a term to describe rapid, excessive, and out-of-control general price increases in an economy.

Explanation:

What is Climate Change?


Explain your answer.

Answers

What is Climate Change?

Climate change is a change in the usual weather found in a place.

How it helps us:

Studying the climate helps us predict how much rain the next winter might bring, or how far sea levels will rise due to warmer sea temperatures. ... We can also see which regions are most likely to be affected by extreme weather, or which wildlife species are threatened by climate change.

How it works:

As the earth's atmosphere heats up, it collects, retains, and drops more water, changing weather patterns and making wet areas wetter and dry areas drier. Higher temperatures worsen and increase the frequency of many types of disasters, including storms, floods, heat waves, and droughts.

How it affects us:

Human health is vulnerable to climate change. The changing environment is expected to cause more heat stress, an increase in waterborne diseases, poor air quality, and diseases transmitted by insects and rodents. Extreme weather events can compound many of these health threats.

What did fungi diverge from?

Answers

Hopes this helps:

Answer: In 1998 scientists discovered that fungi split from animals about 1.538 billion years ago, whereas plants split from animals about 1.547 billion years ago. This means fungi split from animals 9 million years after plants did, in which case fungi are actually more closely related to animals than to plants.

Have a great day.

Given the size of the coquí, what is surprising about its call

Answers

Answer:

its the loud sound the males make at night.

Explanation:

the sound has two purposes the scream CO to repel males while KEE to find mates

According to the diagram how are the three components
of a nucleotide important to the structure of DNA?

Answers

Answer:

A nucleotide of DNA is made up of three parts: a nitrogenous base, a 5-carbon sugar, and a phosphate group. The four nitrogenous bases in DNA are adenine, cytosine, guanine, and thymine.

The phosphate group linked with deoxyribose sugar to make the framework for the nitrogenous bases. The phosphate group and sugar molecule make the DNA backbone and support it. These backbones hold nitrogenous bases and make a monomer of DNA. Nitrogenous bases make DNA stable and hold both backbones together. These bases also make DNA functional.

g Neuron A and neuron B interact with neuron C. Neuron A will produce an IPSP of -2mV in neuron C; neuron B produce an EPSP of 3mV in neuron C. The resting membrane potential is -70mV and the threshold is -50mV. Neuron A fires 6 times rapidly at the same time that neuron B fires 4 times rapidly. What is the resulting membrane potential in neuron C

Answers

Answer:

-70 mV

Explanation:

Given that Neuron A and Neuron B interact with Neuron C

Neuron A produces ; - 2mV of IPSP  and fires 6 times

Neuron B produces ; 3mV of EPSP and fires 4 times

Resting potential = - 70mV

threshold = - 50mV

The resulting membrane potential in neuron C

= -70 + 6(-2) + 4(3)

= -70 - 12 + 12  = -70 mV

How did Mendel solve the problem of always observing the same traits in his experiments?

Answers

By doing different things in his experiment

Describe early land plants

Answers

Answer:

The following seems to be a summarization of the topics.

Explanation:

Not too far from the rich water supply or water bodies can early soil vegetation or flora persist, is considered as early land plants.Throughout history, land organisms have different ways of surviving with rising drought, our rocky earthly environment is turned into such an environment of multilayered sediments as well as varied biotic organisms.

Which of the following is an abiotic factor in a biome

Answers

Answer: C

Explanation: Abiotic means non living so Wind, sunlight, soil, temperature, atmosphere, and water.

Abiotic is non-living so I think it’s C.

A system that consists of tributaries, watersheds and divides is called
a. lake system
C.
river system
b. ocean system
d. pond system

Answers

Answer:

C.

river system

Explanation:

the answer is c the river system

Question 4 Multiple Choice Worth 3 points)
(02.03 LC)
Which physical factor, related to the formation of severe weather, has to do with the amount of water vapor in the air?
O Humidity
O Pressure
O Temperature
O Wind
Question 5/Multiple Choira Worth 2 nointel
Previous Question
Question 1 (Answered)
0

Answers

The answer is humidity

can somebody please help me?

Answers

Answer:

100% of the offspring would be black fur, black eyes (16/16)

Explanation:

(Because the info. wasn't included here, I'm assuming black fur and black eyes are dominant, BBEE, to the recessive white fur and red eyes, bbee)

For BBEE x bbee, you'd create a typical dihybrid true-breeding punnett square , where the first top row would be BE , BE, BE , BE , and the vertical/side row would be be, be, be, be.

Cross these alleles as you would typically for any punnett square, and you'd see that all the offpsring would result in BbEe genotypes, which is true of any true-breeding dominant x recessive cross, which always results in the dominant phenotype being 100%.

So...

Black Fur and Black Eyes : 16/16 (100%)

Black Fur and Red Eyes: 0/16

White Fur and Black Eyes: 0/16

White Fur and Red Eyes: 0/16

What advantage does a reliable web page have over published textbooks and
encyclopedias?
A) It is easily updated with the most recent information.

B) All web pages are peer reviewed.

C)Anyone can publish information on a web page.

D) Textbooks and encyclopedias are always more accurate than web pages.

Answers

A


Bkwcbkwfbicefebdwbdhdhd

Answer:

A

Explanation:

because it is easily updated with recent information

What types of regulations are designed to bring awareness to and reduce the amount of air pollution?


clean air acts

industry regulation acts

pollution for the people acts

water pollution controls

Answers

the clean air acts im pretty sure

Answer:

clean air acts

Explanation:

PLEASE HELP! Scientists performed studies on mussels and clams. They placed these different species in fresh water that had contaminants commonly found in agricultural runoff and human and animal waste. Within a few days, the mussels and clams had removed the majority of the contaminants. How do these findings relate to ecosystem services in natural environments?

A.
Introducing new species of mussels and clams will help reduce erosion and runoff into rivers.

B.
Increasing the biodiversity of mussels and clams in freshwater ecosystems will improve water quality.

C.
Growing mussels and clams in rivers will provide humans with a steady source of food.

D.
Using a single species of mussel or clam will remove greenhouse gasses from the atmosphere.

Answers

Answer:

b

Explanation:

biodiversity means increase value or increase the amount of mussels and clams in rivers to increase water quality

Can someone tell me if this is correct I need help with the percentage

Answers

Answer:

Hand = 75%

No hand = 25%

Explanation:

It's the same thing as last time. Since 3 of them are heterozygous and have 1 dominant allele, they have the dominant trait. And since one of them only has recessive alleles then it should have the recessive traits.

So the hand should have 75% and no hand has 25%.

( I saw someone else just post a link so I answered it in that question box, but it got deleted so i'm just writing it out here ig)

Which statement BEST represents a hypothesis
A: the birds ate 10 mg of food
B: the mice have gray colored fur
C: if rabbits eat twice there normal Amount of food, they will gain weight
D: the fish in the aquarium died becuase the water temperature was too high

Answers

Answer:

I think C. would be the correct answer but I'm not 100% sure if that's correct.

(If you think I'm wrong then DONT say C is the answer.)

Help 7 grade science

Answers

Answer:

rotifer

Explanation:

An omnivore feeds on both plants and animals. I'm this food web the rotifer is eaten by the copopod. The copepod feeds on golden algae (plant) and rotifer (animal), which makes it an omnivore. As such, the correct answer is rotifer because it is feed on by the omnivore, copepod.

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