Diffusion is:

the process of a concentrated substance moving into an area of lower concentration.

the rate at which oxygen is taken in by the alveoli and used by the body.

a type of cell that transports oxygen and carbon dioxide.

a cluster of air-filled sacs that move oxygen through the body.

Answers

Answer 1

Answer:

1

Explanation:

the answer is the first one


Related Questions

Very fast brainlist

One person consumes the equivalent of five cows per year. Five cows consume a total of 39 million Calories of vegetation per year. One person only needs one million Calories a year to survive. Which statement best describes the efficiency of energy transfer in this scenario?

It is very efficient because the person can eat less.
It is inefficient because less energy is needed at the top.
It is very efficient because most energy is made by producers
Only a portion of energy from vegetation makes it to a person.

Answers

Answer:

It is very efficient because the person can eat less.

Explanation:

the common knowledge answer

Only a portion of energy from vegetation makes it to a person. The correct option is D.

What is energy efficiency?

The definition of energy efficiency is the use of less energy to carry out a task or achieve a goal.

Ecological efficiencies at each trophic link determine the food chain efficiency (FCE), which is calculated as the percentage of energy fixed by primary producers that is transmitted to the top trophic level.

The energy supply accessible to trophic level N+1 divided by the energy used by trophic level N is the definition of ecological efficiency.

Only a percentage of the energy from vegetation makes it to a person, which best sums up the efficiency of energy transmission in this situation.

Thus, the correct option is D.

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How does the creation of variations in a species promote survival?​

Answers

Answer:

The variation in the species if organisms modified the organisms for adaptation in the surroundings. After creation of same species must be adapted for natural selection in the environmental effects.

As soon as the rope breaks in picture 4, the car continues to roll forward on its own. This motion is BEST explained by which of the following laws? A. AN object in constant motion tends to remain in motion unless acted on by and unbalanced force. B. For every action there is an equal and opposite reaction/ C. An unbalanced force acting on an object will cause the object to accelerate. D. The force of gravity will cause an object to accelerate toward the earth at a constant rate.​

Answers

The answer is A

Explanation:

due to the fact of the use of gravity

Name three multicellular/large protist producers in the aquatic communities

Answers

Answer:1 Protozoa 2Algae 3 Slime molds and Water molds

Explanation:

Protozoa is an animal like protists, Algae is a plant like protists, and slime molds and water molds are fungus like protistsprotistsprotists

Which type of cell is pictured on the right?

Answers

Answer:

It is a Prokaryotic cell

Explanation:

it is ova

It is a prokaryotic cell.


Explanation: you can see that it has a capsule, which only prokaryotes such as bacteria have.

What is inside a bacteriophage?
O protein
O DNA
O carbohydrate
O lipid

Answers

Answer:

the correct answer is DNA

Which wave has a longer wavelength? * 1 point Captionless Image Wave A Wave B

Answers

Answer:

wave B

Explanation:

:):)

Environmental resistance includes
biotic/abiotic factors that are
to life.

Answers

Answer:

The environmental resistance factors are all the factors or things that keep a population of the organisms from endlessly increasing i.e. keep a check on it. . They reduce the chances for reproduction, affect the health of organisms/individuals, and raise the death rate in the population.

The environmental resistance factors include the factors that are biotic and abiotic.

• The biotic factors are things like a predation, a parasitism, lack of food, competition with other organisms and disease.

• Abiotic factors include factors like drought, fire, temperature, and even the wrong amount of sunlight could affect it.

which of the following best explains why top predators can have up to 60 times as much of persistent organic pollutants as their prey and up to 600 times as much of the pollutants as producers ?

Answers

This is because persistent organic pollutants accumulate in the body fat of living organisms and increase in concentration as they move up the food chain.

What is Persistent organic pollutants?

These are organic compounds that are stable and do not degrade easily. They are usually harmful and accumulate in the body fat of organisms.

They are also known to  increase in concentration as they move up the food chain which is why predators have more of them.

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What would happen to the convection currents in the mantle if Earth's interior
cooled down? Why?

Answers

Answer:

If the interior of the Earth were to cool enough for convection currents to stop, then the motion of the plates would cease, and the Earth would become geologically dead.

Explanation:

please mark me as brainlist

Answer:

If the interior of the Earth were to cool enough for convection currents to stop, then the motion of the plates would cease, and the Earth would become geologically dead.

Why is it necessary for organisms to eat food? In your answer, describe the process that goes
from food (for instance, a sandwich) to the molecules your cells need. Use your own words, and
be specific in your explanation (one paragraph). You should not need any resources besides
your lecture notes to answer this question

Answers

Answer:you to eat to get energy

Explanation:

The main reason you need to eat is to get energy. Food is your body's only supply of energy. However, this energy must be converted from the apple (or any other food you eat) into an energy source that your body can use.

Assume that the readings on the thermometers are normally distributed with a mean of

and standard deviation of
1.00°C.
Assume
2.9​%
of the thermometers are rejected because they have readings that are too high and another
2.9​%
are rejected because they have readings that are too low. Draw a sketch and find the two readings that are cutoff values separating the rejected thermometers from the others.

Answers

So far The 2.5% extreme, we have to find the supposed to this area. It should be 2.5% of .0025. We have to find P 2.5 or mhm 97.25. This extreme, so for this boat, the extreme from that table, that value will be -1.96, And this value is 1.96. This is the right from that table, and this is the required answer.


PLEASE ANSWER THIS QUICKLY!!

Answers

Answer:

1. Gas giant

2. Galaxy

3. Universe

Explanation:

I know my space. Hope this helps!

Answer:

Person above is correct. =D

Explanation:

1. Gas giant

2. Galaxy

3. Universe

a. The term describes living things that are best suited to their environment.
b. Species that survive are the ones that make or meet changes.
c. Florida has a rich record.
d. Two examples of land animal fossils found in Florida are the ________ and the ______.
e. Some animals unable to adapt to the changing environment became ___________.
f. Living things _______________ over time to meet their changing environment.
g. This biologist, __________________, studied evolution in the 1800s.
h. The ________________ was a giant, armadillo-like animal with a spiked tail that once lived in Florida.
i. The Origin of Species is a book written in 1859 about ___________________.
j. Nature selects the fittest for ______________________because they have useful traits.
k. Changes may occur in animals due to changes in the sequence of base pairs in their DNA, and this is known as a __________________.
l. Oldfield mice show ____________________ in the color of their fur.
m. The survival of the light-colored oldfield mice on Florida's Gulf Coast is an example of the process called ________________________.
n. Evolution is a controversial theory that has survived much _________________.

2. Write a micro-theme using and explaining the following terms.

a. "Survival of the fittest"

b. Adaptation

c. Evolution

3. Use the list below to write the correct term for each definition below.

adaptation

extinct

gene

Darwin

fittest

mutation

evolution

fossils

natural selection

_________________________ a. A change in genes that causes a change in a particular trait

_________________________ b. Describes a species that no longer has any living representatives

_________________________ c. A trait that a species develops over generations which helps it to survive

_________________________ d. a unit of DNA that determines a specific trait in the organism

_________________________ e. The survival of organisms best fit for the environment

_________________________ f. Changes in living things over time

_________________________ g. Remains of organisms that lived in the past

_________________________ h. Best suited to survive in its environment

_________________________ i. The biologist who developed and offered evidence of the theory of Natural selection

4. Answer the following using complete sentences.

a. How does genetic variation create new species over time?

b. How does changing the proteins produced in a cell alter what an organism does?

c. In terms of evolution, why do animals that are preyed upon (eaten) likely to have a high number of offspring?

d. Why is it vital that a scientist recognize his or her own biases and that they be open to criticism?

5. We chose to spotlight Florida animals because The Ogburn School is located in Florida. Your next assignment is to conduct an internet search to discover information related to animal diversity. You may choose to research animals in the state you live in. If you live in Florida you may choose to research a Florida endangered species, or one from another state or country. Your research must include the following:

a. species of animal

b. location of animal (state or country)

c. the animal's status (extinct, endangered, threatened, etc.)

d. reason for status (why is animal extinct, endangered, threatened, etc.)

e. type of habitat needed for survival

f. conservation efforts on the animal's behalf

g. prospects for the future of this animal

Answers

Answer:

alveolus (alveoli, plural) The depressions or sockets in the tooth-bearing skeletal elements such as maxillae and dentaries into which the roots of the teeth are inserted. Especially well developed in mammals and crocodilians.

amniote A member of the taxonomic group Amniota, such as reptiles, mammals, and birds, characterized by possession of the amnion, a specialized embryonic membrane.

arboreal Descriptive term for an animal that primarily lives in trees.

astragalus (also talus) Bone that articulates with the tibia and fibula to form the ankle joint.

atlas The first or anteriormost vertebra of a tetrapod, the one that articulates with the skull.

auditory bulla (auditory bullae, plural) The bone that encloses the inner ear region of the mammalian skull and is found on the ventral surface of the posterior region of the skull. Typically fragile and thus rarely preserved in fossils; but inflated and composed of very solid bone in whales. For that reason, whale auditory bullae are commonly recovered as fossils. Alternatively called the tympanic bulla.

autochthonous In paleontology, used to describe a taxon or clade that evolved frim its common ancestor in its present geographic region.

axis (axes, plural) The second vertebra in a tetrapod, it follows the atlas.

A phenotype ratio of 9:3:3:1 in the offspring of a mating of two organisms heterozygous
for two traits is expected when:
A. the genes reside on the same chromosome
B. each gene contains two mutations
C. the gene pairs assort independently during meiosis
D. only recessive traits are scored
E. none of the above

Answers

C. the gene pairs assort independently during meiosis.

What is one disadvantage of using solar system?
A. Solars panels are very inexpensive
b. Solar panels work well only in sunny areas
C. Solar energy is available only in the summer
D. Solar energy produces greenhouse gases

Answers

Answer:

the answer is b

Explanation:

if the sun isnt shining solar energy does not collect in the panels

hello help me with this question thanks in advance don't spam​

Answers

Answer:

Explanation:

Advantages to community:

1. Geothermal energy is a renewable  energy resource because heat extracted is very small compared to the Earth's heat content.

2. It is reliable and constant source of energy as it can extracted all through the year despite changing weather patterns.

3. Geothermal energy is widely available and it creates new job opportunity.

Disadvantages:

1. Cost of installation of geothermal heat pumps are high.

2. This power plants plants are suitable to particular region and they are far from cities.

Advantage to the environment:

1. It is echo friendly and non-polluting from production to use.

2.  Geothermal plants occupy a less space, no-mining or no transportation is require and thus protects the natural environment.

3.  There is no wastage or by -products.

Disadvantage:

1. This power plants may trigger earthquakes.

2. Power plant uses lot of water in its processes.

What is the most likely effect of this?
an increase in mutations in both bird populations
an increase in gene flow between the bird populations
an increase in genetic drift between the bird populations
an increase in mutations in the island population

Answers

Answer:

B. An increase in gene flow between the bird populations.

Explanation:

Answer:

B (gene glow)

Explanation:

an increase in gene flow between the bird population

In general, bacterial
cells are prokaryotic.
Which cells are eukaryotic?

a. Bacterial cells
b. Animal and plant cells

( it’s b )

Answers

Answer:

B . Animal and plant cells

Animal and plant cells are eukaryotic cells.

What are Eukaryotic cells?The region One of the three realms of life is eukaryote; the other two are bacteria and archaea.Organelles that are membrane-bound and found in eukaryotic cells include the nucleus, mitochondria, and endoplasmic reticulum. Protozoa, fungi, plants, and animals are examples of eukaryotic cell-based organisms. The biological domain Eukaryote is where these species are categorized.Animals, fungi, protists, and plants are eukaryotic cells examples. They have chromosomes, which organize their genetic material.Since prokaryotic cells lack a membrane-bound nucleus, eukaryotic cells are the main difference between these two types of creatures. Eukaryotes store their genetic material in their nuclei.

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Brown hair is dominant and blonde hair is recessive.

The parents have the following alleles.

Bb

Bb

What color hair do the parents have?

A. One has blonde and the other has brown

B. Brown

C. Blonde

d. unable to determine

Answers

Given what we know, we can confirm that the parents have brown hair.


Why do the parents have brown hair?

This has to do with how dominant alleles work. When an allele is dominant, it is because, in the presence of mixed alleles, this trait will always be the one reflected in the phenotype of the individual. Since the parents possess an allele for brown hair and one for blonde, but brown hair is dominant, both parents will have brown hair.

Therefore, we can confirm that both parents will have brown hair due to the dominant nature of the brown hair allele.

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In the early stages of development all animals begin as what?

Answers

In the early stages of development all animals start as a single cell… They divide again and again until... gradually a body emerges…with a front, a back, a top and a bottom. important embryos were fish.

what is known as the substance that is dissolved

Answers

Answer:

solute

Explanation:

solute a substances that can dilute in solvent

Complete this sentence: Energy that is not transferred to the next trophic level is mostly escaped as ________ energy.

heat
chemical
trophic
biomass

Answers

Answer: heat

Explanation:

Energy that is not transferred to the next trophic level is mostly escaped as heat energy.

What are the four features of minerals? (use complete sentences and your own words.)

(NO LINKS PLEASE)

Answers

Answer:

1)All minerals are naturally occuring.

2)They have to have a crystalline structure and a definite chemical composition.

3)They are inorganic.

4)They are a solid.

Explanation:

1-You have to find a mineral in the nature. It cannot be created in a lab.

2-Crystallline structure is the ordered arrangement of ions, molecules, or atoms in an object.

3-Inorganic means that the object has not bonded with carbon.

4-Solid means that it is not fluid and is hard and stable.

Hope this helps! :)

4. What are the functions of leaves? (Select all that apply.)

release oxygen

perform photosynthesis

absorb nutrients

absorb carbon dioxide

Answers

Answer:

B. Perform photosynthesis

.....................

Answer:

perform photosynthesis

Explanation:

as i thing that brother thank you asking question

Do athletes need protein powders to increase their muscle mass or athletic performance?

Answers

You don’t HAVE to have it but it can improve your energy for a workout and help build muscle

the ___ division of the nervous system tends to prepare the body for flight or fight.

Answers

Answer:

sympathetic

Explanation:

PLEASE MARK ME AS BRAINLIEST AND HAVE A NICE DAY :)

Why are invasive species considered a threat to native wildlife?

Answers

Answer:

they can consume all the native prey and have few predators.

Explanation:

3
Which of the following statements are true? Choose more than one
answer.

Oxygen is the most abundant gas in Earth's atmosphere

Gases in the stratosphere protect living organisms from solar
radiation

Wavelength affects the color of light

Gases are thicker in the upper levels of the atmosphere

Not all wavelengths of light are scattered by atmospheric
gases

Earth's atmosphere absorbs blue light most efficiently

Answers

Answer:

Oxygen is the most abundant gas in Earth's atmosphere

Oxygen is the most abundant gas in Earth's atmosphere

Oxygen is the most abundant gas in Earth's atmosphere

Oxygen is the most abundant gas in Earth's atmosphere

Oxygen is the most abundant gas in Earth's atmosphere

Explanation:wfnwkfnskfnds

Oxygen is the most abundant gas in Earth's atmosphere

Oxygen is the most abundant gas in Earth's atmosphere

Oxygen is the most abundant gas in Earth's atmosphere

Oxygen is the most abundant gas in Earth's atmosphere

Oxygen is the most abundant gas in Earth's atmosphere

Oxygen is the most abundant gas in Earth's atmosphere

Oxygen is the most abundant gas in Earth's atmosphere

Fathers can only pass X-linked traits to their _[blank1]_, while mothers can pass X- linked traits to their _[blank2]_. What option correctly completes this sentence. daughters; daughters only daughters; daughters only sons; sons and daughters sons; sons and daughters daughters; sons and daughters daughters; sons and daughters sons; sons only

Answers

Males only have X chromosomes and only pass to their daughters

Explanation:

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