The difference between active and passive transport is that–

A. Passive transport requires energy to move molecules up a concentration gradient, and active transport does not.

B. Passive transport can only move specific particles across a membrane, and active transport can move any particle.

C. Active transport requires energy to move molecules up a concentration gradient, and passive transport does not.

D. Active transport moves molecules in animal cells, and passive transport moves molecules in plants.

Answers

Answer 1

Answer:b

Explanation:

Answer 2

Answer:

moves particles from an area of low concentration to an area of high concentration.

Explanation:

edge


Related Questions

which layer of the earth is about 85% of iron

Answers

Answer:

the mantle

Explanation:

2885 kilometers thick and is the middle layer of the Earth

the earth's mantle

the mantle is made up of several minerals such as iron, magnesium, silica and oxygen.

Practice 5: Match the statement ends to the beginnings
A Shell
D. Cell wall
B. Provides protection and support for the cell
E. Controls what goes into and out of the cell
C. Cell membrane
1. All cells have a
2. Plant cells have a
3. The cell membrane
4. The cell wall
5. The cell wall's function is similar to, or like a

Answers

Answer:

A-4. the cell wall

D-5. the cell walls function is similar to, or like a

B-2. plant cell have a

E-3. the cell membrane

C-1. all cell have a

Jimmy and Marquis are conducting an experiment in class. They have
planted four seeds in four different pots. They placed the pots in different
places around the classroom: in a sunny window, on the work table, on the
floor near the window, and under the boys' desk. The boys watered the
pots every morning when they arrived at school. Once the seeds sprouted
the boys measured how much each seed grew. "Wowl" said Marquis, after
3 weeks of observing and measuring, "I can tell which seed was under our
desk!" Can you? Which seed was placed under the boys desk?
Measuring Plant Height
10
Plant Height (Inches)
Seed 1 Seed 2 Seed 3 Seed 4

Answers

The plant with the lowest height would be the one to have grown under the desk.

What else is produced during the combustion of propane, C3H8?
H2O
C3H8
O2
C3H8O2

Answers

H20 aaaaaaaaaaaaaaaaa

What else is produced during the combustion of propane, C3H8 is H20, but to understand this reaction, we need to know.....

Combustion of propane

When an oxidizer sold as a fuel, it is also called liquefied petroleum gas (LPG), which is a mixture of propane with small amounts of

PropyleneButane and butylene plus ethanethiol

As an odorant to prevent the normally odorless propane from going unidentified. when in leaks. It is used as fuel for stoves and in car engines.

The combustion of propane is a typically exothermic reaction with the evolution of heat:

C3H8 + 5 O2 → 3 CO2 + 4 H2O

With this information, we can say that the combustion product of propane is H2O.

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What are the three main components of a DNA molecule?
A. a sugar, a nucleotide, and an amino acid
B. a sugar, a water molecule, and a nitrogenous base
C. a sugar, a phosphate group, and a nitrogenous base D.
a sugar, a phosphate group, and an amino acid

Answers

Answer:

a sugar, a water molecule, and a nitrogenous base

Explanation:

Answer:

a sugar, a phosphate group, and a nitrogenous base

Explanation:

i had it for study island that was the correct answer

Please help would mean a lot tried looking up the answer but I have to pay to get answers.

Answers

Sequences of base pairs or nucleotides
mRNA?
Endoplasmic Reticulum?
Codons
Amino
Protein

2) Jean is a 12 year old girl who consumed chicken that was not fully cooked at a restaurant.
Thirty-six hours later, she started vomiting and was constantly having diarrhea. After a week,
she had a fever and swelling around her eyes and under her neck.


help me pls

Answers

She has salmonella? What is the question?

Salmonella infection and campylobacteriosis cause diarrhea after eating partially cooked chicken. This causes food poisoning.

What is food poisoning?

An illness called food poisoning is brought on by consuming tainted food. Most people recover without treatment in a few days and it's typically not dangerous. The food is typically contaminated with bacteria, such as salmonella or Escherichia coli (E. coli), or a virus, like a norovirus, in cases of food poisoning.

more than three days of diarrhea. A high fever (102°F or above) vomiting so frequently that it is difficult to swallow liquids. Dehydration symptoms include not peeing as frequently, a dry mouth and throat, and feeling lightheaded while standing up.

Hence, Jean suffered from food poisoning caused by salmonella infection.

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Molecules of DNA are composed of long chains of?

Answers

two long polynucleotide chains

A DNA molecule consists of two long polynucleotide chains composed of four types of nucleotide subunits. Each of these chains is known as a DNA chain, or a DNA strand. Hydrogen bonds between the base portions of the nucleotides hold the two chains together

Molecules of DNA are composed of long chains of nucleotides.

What are nucleotides?

Nucleotides are the building blocks of DNA  and RNA adenine (A), thymine (T), guanosine (G), and Cytosine (C. In RNA, uracil (U) is present instead of thymine.

The pentose sugar is the ribose sugar in RNA and deoxyribose sugar in DNA. In deoxyribose sugar, oxygen is absent from the 3' carbon.

Phosphate groups are attached through the 5-C of pentose sugar by an ester bond. One polynucleotide chain is formed when the phosphate of one nucleotide forms a phosphodiester bond with the sugar of another nucleotide.

A double-stranded structure is formed by base pairing between nucleotides. The adenine binds to thymine by two hydrogen bonds and guanine binds to cytosine by three hydrogen bonds.

Therefore the molecules of DNA are composed of long chains of nucleotides.

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HELPPPPPP MEEEEEEEEE PLZZZZZZZZZZ

Answers

Answer:

01). cells

02).seeing inside the cells

03).Robert hook

Humans and dogs evolved from a common ancestor. Which pieces of evidence would support this? Check all that apply. Both of their adult forms look very similar. They both had a tail as an embryo. Their arm and leg structure is similar, but may have a different function. There are fossils of an organism that is half man, half dog in the fossil record. Both had gill slits when they were born.

Answers

Answer:

They both had a tail as an embryo.

Explanation:

Both human and dogs have tail as an embryo. Temporary tail-like structures are present in the human embryo. These tail like structure develop around the fifth or sixth week of gestation, having about 10 to 12 vertebrae and removed when it reached to its full development stage while on the other hand, tail present in dog's embryo also developed with time and we can see when the dog baby is fully formed.

Answer:

They both had a tail as an embryo.

Their arm and leg structure is similar but may have a different function.

Explanation:

They both had a tail as an embryo.

Vestigial structures are those body parts that have lost or reduced their original function during the evolution of a species. These vestigial structures might be found in many animals, including human beings. Vestigial structures were plenty functional for common ancestors. But with evolution, they degenerated, stunted, and became rudimentary for some of the new species.  

During the first 4 months of embryogenesis, all mammals have a tail at some point in their development. Dogs develop this structure and keep it during their whole lives, but humans lose it with time during embryogenesis. The tail disappears, and its forming vertebras get fussed with each other composing the coccyx, which represents a vestigial structure. This tailbone is the remnant of a missing tail.

In many animals, the function of the tail is to stabilize, equilibrate and mobilize. But in humans, the coccyx, located at the end of the vertebral column, has lost this original function.

Their arm and leg structure is similar but may have a different function.

The fact that whales, humans, and dogs all have the same bones in the same order, but they matured differently in later embryological development, is an example of homologous characters.  

Homologous characters have the same fundamental structures. They also share the same relations with adjacent structures, and they have the same embryological development.  

These structures might show variations between organisms exhibiting them, according to their function and to the environment in which the organism lives.  

These homologous characters are common in organisms related and that share a common ancestor.

FILL IN THE BLANK!!
Linnaeus developed two groups for classifying organisms: genus and _____

Answers

Answer:

Species

Explanation:

I majored in Biology

Answer:

Species I got 90% but this one was right

Explanation:

proof

What are the like terms in the expression: 2a + 3b+ 40 - 5a + 8 - 4
O 2,3,4,-5
O 2a, 3b, 4c
O-5a, 8
O2a, -5a, 8, -4


i need help plzz

Answers

Answer: 2,3,4,-5

Explanation:

it seems that 40 is supposed to be 4c.

the terms can be grouped in several ways

2a, -5a                   Contain factor ‘a’

8, -4.                Simple integers/constants

2a, 4c,  8, -4.          Even numbers

2a, 3b, 4c,  -5a       Contain a factor      

Can’t group on + or - because values of a,b,c are unknown

From the available choices, only 2,3,4,-5 matches a logical group.

Which organism cannot perform asexual reproduction?

humans
fungi
earthworms
potatoes

Answers

Answer: Humans

Explanation:

They perform sexual reproduction.

Humans because they perform sexual reproduction

Clouds are categorized by their shape and their elevation. Which list shows cloud type in order from lowest to highest in the sky?

Answers

Clouds are categorized by their shape and their elevation. Which list shows cloud type in order from lowest to highest in the sky?

The answer is C ( stratus, altocumulus, cirrus )

Answer: it’s C

Explanation:

Please help I'm behind

Answers

First one is rainfall.

Answer:

The first answer is rainfall, and the second answer is the last one

Explanation:

1.

Rainfall is measured with a rain gauge in inches/millimeters - Most modern rain gauges generally measure the precipitation in millimetres in height collected on each square meter during a certain period, equivalent to litres per square metre. Previously rain was recorded as inches or points, where one point is equal to 0.254 mm or 0.01 of an inch.

2.

Climate is the weather conditions prevailing in an area in general or over a long period. The other 3 describe the weather conditions in a place for just a week, or day while climate is measured annually (basically over a long time)

Good luck with the rest of your exam, I hope you catch up with all your work and do well :)



How many Calories of complex carbohydrates were converted to sugars?

Answers

I’m pretty sure the answer is 31

Sorry if this is incorrect let me know

What is "A C G G A T C G" as an mRNA strand?

Answers

UGCCUAGC i think m not fully sure

please help!! 15 points

Answers

Answer:

The answer is the age of the rock.

Explanation:

Scientists can use their tools and DNA to figure out the age of rocks.

Explain how PHOTOSYNTHESIS works in plants

Answers

Answer:

During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. ... This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules.

Explanation:


1. How does the human body respond to exercise?

Answers

Answer:

the heart pumps more blood and sends it to the muscles. to create more blood more oxygen is used and you start to breathe harder. if you work out hard then you might get some lactic acid build-up.

hope this helped!

This animal DOES NOT have live birth, instead this animal...?

Answers

Answer:

The platypus is one of only five species of monotremes in the world. These are mammals that lay eggs instead of giving birth to live young.

:-))

Please help me with this question :} or I'll fail my class :{

Answers

For the genotype you just have to write the pair of letters

for the phenotype it's unclear what most genes represent but if one dominant allele is present the dominant trait will maniefest, considering all the cases are complete dominance

1.

q arm of chromosome

a.genotype Ff

phenotype the dominant trait(F)

b.genotype tt

phenotype: the recessive trait(since it's the only one present)

c.genotype Bb

phenotype: the dominant trait

d. genotype hh

p arm of chromosome

phenotype the recessive trait

e.genotype Rh+Rh+

phenotype positive rhesus factor

f.genotype mm

phenotype recessive trait

g. genotype CC

phenotype dominant trait

2.

q arm of chromosome

a.genotype Ff

phenotype dominant trait

b.genotype TT

phenotype dominant trait

c. genotype bb

phenotype recessive trait

d.genotype hh

phenotype recessive trait

p arm of chromosome

e.genotype Rh+Rh-

phenotype positive rhesus factor

f.genotype mm

phenotype recessive trait

g.genotype Cc

phenotype dominant trait

Nucleic acids _______.
A.) combine to form carbohydrates
B.) store and transmit hereditary information
C.) are made up of amino acids
D.) form polysaccharides

Answers

B - store and transmit hereditary information

Water that falls onto land surfaces is either soaked into the ground or flows downhill into a body of water. The water that soaks into the ground is called groundwater.

Soil and rock that allow this water to pass through them are called ________.
A. aquifers
B. compacted
C. permeable
D. runoff

Answers

Materials that allow water to pass through the are called....

C. Permeable

The capacity of a rock or other substance to let the passage of water is known as permeability, hence option c is correct.

What is groundwater?

Groundwater may readily flow through permeable materials because the pore space is linked throughout the rock or sediment. Mud and clay are examples of materials with great porosity yet very limited permeability.

An aquifer is a water-bearing rock that easily transfers water to wells and springs, the aquifers may be dug into and water pumped out.

Therefore, water that falls onto land surfaces flows into water bodies or it may be soaked in the ground, this water flows through the soil and rock which are permeable, hence option c is correct.

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If a dog had the genotype Aa, what color (phenotype) would his fur be?
A. Brown
B. White

Answers

Answer:

A

Explanation:

For each of the genotypes below determine what the phenotype would be. ... AA  DOM Ff ... In dogs, the gene for fur color has two alleles. ... phenotypes and genotypes of their possible puppies by using a  Square.

Which chemical bond most likely stores the most energy?
A. C=C
B. C-C
C. H-H
D. H-O

Answers

Answer:

The chemical bond which stores more energy is the Double carbon-carbon bond.

Explanation:

Hooters of 2 g of sugar in 500 g of water what was the mass of a solution formed formed


Will do the brainlest

Answers

Answer:

Explanation:

The answer would be 502 grams because of the law of conservation of mass, you can't create or destroy mass so then 2 grams plus 500 grams is 502.

Answer:1,000 grams

502 grams

500 grams

498 grams

Explanation: The answer would be 502 grams because of the law of conservation of mass, you can't create or destroy mass so then 2 grams plus 500 grams is 502. I am 100% positive that B is correct.

The iris of the human eye can have many colors, including brown, blue, green, and hazel. How does polygenic inheritance explain why many iris colors are possible?

Answers

Answer:

Some physical characteristics, such as the color of the human skin or eyes, are controlled by at least two genes. These traits are known as polygenic traits. The number of genes that determine the color of the iris is unknown, but the most significant of them are found in Chromosome 15 and they are named OCA2 and HERC2. These genes are associated with the production of melanin.

Explanation: Polygenic inheritance describes the inheritance of traits that are determined by more than one gene. These genes, called polygenes, produce specific traits when they are expressed together. Polygenic inheritance differs from Mendelian inheritance patterns, where traits are determined by a single gene. Polygenic traits have many possible phenotypes (physical characteristics) that are determined by interactions among several alleles. Examples of polygenic inheritance in humans include traits such as skin color, eye color, hair color, body shape, height, and weight.

Earth Science
Please Help!

Short term atmospheric conditions give information regarding the weather in an area.
True
False

Long-term precipitation and temperature data can give an indication of the climate of an area.
True
False

Answers

Answer:

true.

true.

both are true

Short term atmospheric conditions give information regarding the weather in an area and Long-term precipitation and temperature data can give an indication of the climate of an area, both statement true.

What are weather and climate conditions?

Weather is the collective name for the momentary properties of the lower atmosphere, including precipitation, temperature, humidity, wind speed, direction, and atmospheric pressure. The possibilities are endless: it may be bright, cloudy, rainy, foggy, chilly, hot, windy, stormy, snowy, etc.

Seasons, documented climate cycles, or volcanism are frequently to blame for short-term climate change, which affects shorter timescales.

Long-term climate change affects longer time periods and may be brought on by human activity, variations in the sun's output, or a sluggish recovery from the Flood.

Therefore, weather refers to atmospheric circumstances for a brief period of time, whereas climate refers to long-term, predictable atmospheric conditions.

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How are chromosomes arranged in a karyotype?

Answers

Answer: A karyotype test examines these dividing cells. The pairs of chromosomes are arranged by their size and appearance.

Explanation:

In a karyotype, the arrangement of chromosomes is generally done in the order of size, that is, from largest to smallest.

What is a karyotype?

It is the number and appearance of chromosomes. It comprises the length of the chromosomes, the banding pattern, and the position of centromere.

In a human karyotype, the body chromosomes or autosomes are usually aligned in approximate order of size from largest to smallest, that is, from chromosome 1 to chromosome 22.

However, the chromosome 21 is shorter in comparison to chromosome 22. The arms of the chromosomes protruding from either end of the centromere may be classified as long or short, based upon their relative lengths.

The long arm is abbreviated as q and the short arm as p. Each arm is subdivided further and is designated by a number. The locations on chromosomes can be illustrated by using the naming system.

Thus, in a karyotype, chromosomes are arranged on the basis of their size, that is, from largest to smallest.

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