When you exhale, what happens in the lungs?
A. Air moves from high pressure (in the lungs) to low pressure (outside)
B. Space in the lungs increases
C. Lung pressure decreases
D. Air moves from low pressure (in the lungs) to high pressure (outside)

Answers

Answer 1

Answer:

Conversely, exhalation moves the diaphragm up into the chest cavity and reduces the space in it. This forces the air, which is dense with carbon dioxide at that point, out of the lungs and windpipe. It then exits the body either through the nose or mouth. Usually, this requires no physical effort from the body.

Explanation:

So its A


Related Questions

HELP AND ILL PUT U IN BRAINLIEST

Answers

Answer:

By crossing plants with purple flowers, dominant, with plants with white flowers the offspring will be 100% purple because all the offspring will receive at least one dominant allele.

Explanation:

The crossing of two plants of pure line, one dominant and one recessive, for a trait —the color of the flowers— will produce a hybrid offspring which will express the dominant trait in its phenotype.

Parental generation:

Plant with purple flowers PP Plant with white flowers pp

Cross: PP X pp

Punnett Square :

Alleles       P       P

p              Pp     Pp

p             Pp     Pp

Offspring: 100% Plants whose phenotype is purple flowers and Pp genotype.

According to this, the descendants will be 100% plants with purple flowers, hybrids, since all the offspring received at least one dominant allele.

Which statement describes the offspring of the F1 generation when crossing a pea plant that is true breeding for green seeds with a pea plant that is true breeding for yellow seeds?
The green trait is the dominant trait.
The offspring will inherit one allele from each parent.
The offspring will have both green and yellow seeds.
Each offspring will have a unique set of alleles.

Answers

Answer:

The offspring will inherit one allele from each parent

Explanation:

Just did EDGE

The statement 'the offspring will inherit one allele from each parent' describes the offspring of the F1 generation when crossing a pure green seeds pea plant with a pure yellow seed pea plant.

What is an allele?

An allele is a given gene form, diploid organisms inherit two alleles for gene locus, one from each parent.

A diploid individual can be for a given gene locus:

Homo-zygousHeterozygous

An individual is homo-zygous when it inherits the same allele or gene variant for a particular gene locus.

Conversely, an individual is heterozygous when it inherits different alleles for a given gene locus.

In conclusion, the statement 'the offspring will inherit one allele from each parent' describes the offspring of the F1 generation when crossing a pure green seeds pea plant with a pure yellow seed pea plant.

Learn more about alleles here:

https://brainly.com/question/4079493

Why is the earth considered a magnet? What is a permanent magnet? describes an electromagnet

Answers

Answer: *See Explanation*

Explanation: The earth's core "generates" its own magnetic field....so it is considered a magnet. A good example of a "Permanent Magnet" would be the Earth's crust. Not the crust itself, but the effect it causes. A "Electromagnet" is made by passing electric currents through a coil surrounding it. (I know, it's a bit confusing.) Check other sources if it is too confusing.

Answer this and get brainliest. ^_^
(No Wrong Answers Please.)​

Answers

Answer:

llslslsksskwnnnnwjjsksieieiii3i3ii3i3i3ii3i33i

Answer:

I think its D

Explanation:

(sorry if its wrong)

What process forms water vapor to turn into clouds?​

Answers

Answer:

condensation

Explanation:

The water cycle

evaporation--> condensation--> precipitation-->repeat

Turn all these sequences into Mrna instead of DNA

Amino Acid Sequence
MET-VAL- SER-LEU-STOP
MET-VAL-SER-LYS-STOP
MET-LEU-LEU-LEU-PRO-STOP
MET-LEU-LEU-SER-ALA-STOP
MET-ALA-VAL-VAL-STOP
MET-VAL- ALA-ALA-STOP

Answers

Answer:

use this to help you I'm sure you're teacher already reached you how to used this.

The number of chromosomes that result from mitosis is _____.

the same as original cell
double the original cell
half of the original cell
none of the above

Answers

it would be the same as original cell.

Answer:

Hello! This answer would be the same as original cell!

Explanation:

I really hope this helps!


⚠️40 POINTS!!⚠️



As part of an adventure challenge, you find yourself dropped into a unknown place. There are birds and wolves. The air is
cold, and the ground is very hard. What biome have you landed in?

Answers

I’m almost sure it’s called the Polar regions but I can’t remember much

Answer: The Arctic Tundra.

Help
How many molecules of oxygen is need to undergo cellular respiration?

Answers

Answer:

At least 6. You have to look at the chemical formula for cellular respiration and make sure it is balanced!

C6H12O6+6 O2→6 CO2+6 H2O

Explanation:

Answer:

6

Explanation:

In all three stages of cellular respiration combined, as many as 36 molecules of ATP are produced from just one molecule of glucose.

2. What does it mean if a micrograph is "false-colored?"

Answers

It means that the object has color created by the computer since electron microscopes really see in black and white. ... They usually range in sizes between 5-50 micrometers, they are surrounded by a cell membrane, and usually can't be seen without a microscope.

A micrograph is said to be false-colored when there is color created by the

computer involved in the printing of the picture.

A micrograph is a pictorial representation of objects seen under a

microscope. The view of objects under  microscope is usually in black and

white color. The micrograph is therefore meant to also be in black and white.

This is the reason why when there is a color in the micrograph, it is referred

to as being false-colored.

Read more on https://brainly.com/question/25309587

Roots grow into cracks and rocks and break them apart. This is an example of what type of weathering?

Rust occurs when iron chemically reacts with oxygen. what type of weathering is this an example of?

Answers

Answer:

Wedging (for the first one)

Explanation:

please answer the question in the picture 40 points

Answers

Answer:

A & B.

Explanation:

enzymes are molecules that speed up the chemical reactions, but they don’t interfere in the free energy of a reaction.

Which will increase the rate of a chemical reaction?

Answers

The rate of a chemical reaction would also increase if you increased the temperature, this is because the thermal energy would change into kinetic energy and the frequency of collisions would increase, increasing the rate.

........ produces hormones and enzymes that aid digestion.

Liver

Gall bladder

Pancreas

Urethra​

Answers

Answer:

urethra

Explanation:

Answer:

Pancreas and liver

Explanation:

mountain trekkers use alcohol thermometer, why?

Answers

Answer:They are used rather than mercury thermomethers to in very cold religions because alcohol has lower

Answer:

They are used rather than mercury thermomethers to in very cold religions because alcohol has lower

Explanation:

What is the anatomy of a leaf

Answers

Answer:

Typically, a leaf consists of a broad expanded blade (the lamina), attached to the plant stem by a stalklike petiole. In angiosperms leaves commonly have a pair of structures known as stipules, which are located on each side of the leaf base and may resemble scales, spines, glands, or leaflike structures.

Explanation:

Hope this helps

Crown me as brainliest:)

EASY 7TH GRADE SCIENCE QUESTION FIRST PERSON BRAINLIEST!!!!!

A. Velocity varies with the compass direction of motion

B. Measurement error causes multiple observations of motion to conflict

C. All motion is relative to the frame of reference chosen for measurement

D. Acceleration and velocity have different values because they are different measures of motion

Answers

Answer:

C. All motion is relative to the frame of reference chosen for measurement

Explanation:

do trees Make their own energy every day

Answers

Answer:Trees and other green plants are the source of energy for all animal life to live and grow. Through the process of photosynthesis plants change light energy from the sun into chemical energy that is stored in the plant as carbohydrates (sugars) as it grows

Explanation:

Yes trees make their own energy every day

Trilobites are used as index fossils because

Answers

Answer:

d

Explanation:

Robert Hooke made this drawing after using a microscope to observe dead cork bark. What does Hooke's drawing show? A. Cell division
B. Cell organelles
C. Living cells
D. Cork cells​

Answers

Answer:

THE Awnser is D

Explanation:

A.P.E.X

Answer:

d

Explanation:

dead cork cells

What holds the two strands of the DNA double helix together?

A.Weak hydrogen bonds
B. Strong hydrogen bonds
C. Weak covalent bonds
D. Strong covalent bond

Answers

Answer:

B.Strong hydrogen bonds

Explanation:

The deoxyribonucleic acid (DNA) molecule consists of two chains or strands of nucleotides that are held together in a double helix by hydrogen bonds between the bases of the nucleotides.

what is the fluid portion of the chloroplast outside of the thylakoids

Answers

Answer:

stroma

Explanation:

The stroma is the fluid portion of the chloroplast located outside the thylakoids. 6. The visible light absorbed by chlorophyll increases the energy level of the chlorophyll's electrons.

Answer:

I'm pretty sure it's stroma

Simple sugar molecule: fructose

Answers

Answer:

what's the question??????????????????????????

where is the question so we can help you

Where can the following organelle be found:
Vacuole
Answer : it can be found it animals cells and plant cells
(I did the test guys )

Answers

vaculoe you already know the answer ??

What is Chargaff's Rule?

Answers

Answer:

Chargaff's rules state that DNA from any species of any organism should have a 1:1 stoichiometric ratio of pyrimidine and purine bases and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine. This pattern is found in both strands of the DNA.

Which internal structure is an adaptation that provided organisms with the function to perform gas exchange on land?

Answers

The answer is the Gal bladder

Answer:lungs

Explanation:

Lungs

5 internal and external ways to help your skin please will mark brainliest​

Answers

Internally should be based on what you feed your body with , when you reduce or stop eating things like chocolates , nuts , oily food , adding a lot of butter can affect your skin proportionally

Externally washing your skin with just water helps , putting on glycerin and all kinds of moistures products . But going to a dermatologist is always the best way to treat skin bc we are not the same
Exfoliate, moisture, apply sunscreen, drink water , eat well

Activity
The picture shows five different embryos. Study the picture, and then answer the questions.
What similarities and differences do you notice among the different embryos?

Answers

Answer:

I can tell you some difference but I cant find similarities

Explanation:

they each have thier own heat area

they are each a different breed

they each have thier own cold area

they each come from a different family tree

this all I can really see I hope this helped at least a bit

Answer:

All the embryos have a similar wormlike shape, but they have different features. For example, the amphibian has a large bubble shape in the middle and the fish has a smaller bubble shape. The others don’t have a bubble shape.

Explanation:

Got it off of Edmentum :)

When electrons transfer from one atom to another, both atoms become Choose... and they are held together by a(n) Choose... bond. When electrons are shared between atoms, a(n) Choose... bond forms between the atoms, and the joined atoms become a(n) Choose... .

Answers

Answer:

This question is incomplete as it lacks a word bank, the word bank are:

Ions

Electrons

Isotopes

Molecules

Covalent

Negative

Ionic

Molecular

Hydrogen

Point

Element

Ionic compound

The answer is:

1. Ions

2. Ionic

3. Covalent

4. Molecule

Explanation:

An ION is a charged atom i.e. an atom with positive (+) or negative (-) charge, which results when an atom loses or gains electrons respectively. The ions of different elements are held together by bonds called IONIC BONDS, which are bonds that form as a result of the difference in electric charges or electrostatic forces between the atoms involved. For example, an ionic bond forms between NaCl because there is an electrostatic force between the positive Na+ ions and negative Cl- ions.

However, on the contrary, when electrons are shared between atoms, a COVALENT BOND is formed. The atoms share their valence electrons to form a MOLECULE, which comprises of two atoms.

hurry plz help for test due in 5 min

Answers

Answer:

Hello! Brainly is a website used for help on school but you should not use brainly for exams, test, or quizes!

                                                                                    BrainlyMiddleSchool

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