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

Resistance exercise will most likely cause muscle to

Answers

Answer:

It will cause the muscle to get tired

It will cause the muscle to increase in size,pain, and become tired

Can someone tell me why cell specialization is important for life on earth. Please Give some examples of why it is important as well.

Answers

Answer:

It is important because if not then life would not exist at all except maybe in single cells forms

Explanation:

The body is made of so many cells and without cell specialzation, the cells would not know what to do, they would all be the same. The liver is so different from the skin from the eyes, from the tongue, and so on. That is why we need it so our body can do what it is supposed to do.

Thatś only really one example but I hope it helps!

PLSSS HELP I WILL MARK U!!!


Enzymes can build up (synthesize) or break down (lysis) a product. Explain the picture below

Answers

Answer:

Enzymes speedup the chemical reaction.

Explanation:

Enzymes are the molecules which are responsible for speedup of the chemical reaction. In this picture, we can see substrate attached to the active site of the enzyme. This enzyme speedup the chemical reaction and products are formed after completion of chemical reaction. When the chemical reaction is over, the products detached from the enzyme and no decrease occurs in the size of enzyme.

can someone help me asapp

Answers

Answer: hydrogen bonds

Explanation: The two strands of a DNA molecule are held together by hydrogen bonds between the nitrogen bases on opposite strands.

A low-mass star is most likely to end its life cycle as a
a. protostar
b.black hole
c. supernova
d. black dwarf
PLEASE ANSWER SOOOOON sorryyy

Answers

Answer:

Explanation:

Black dwarf

When someone feels out of breath what is the chronological order that the nervous system works to generate a reaction ?

Answers

Breathing is an automatic and rhythmic act produced by networks of neurons in the hindbrain (the pons and medulla). The neural networks direct muscles that form the walls of the thorax and abdomen and produce pressure gradients that move air into and out of the lungs.
Hope this helps!!!!

What property of water allows water
to soak up so much CO2 gas?

Answers

Answer:Carbonic acid releases hydrogen ions, which combine with carbonate in seawater to form bicarbonate, a form of carbon that doesn't escape the ocean easily. As we burn fossil fuels and atmospheric carbon dioxide levels go up, the ocean absorbs more carbon dioxide to stay in balance.

Explanation:

Please help me need this before 4:30pm
Atomic Number = the number of __________________________ in an atom.

Answers

Answer:

the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.

Explanation:

the atomic number= protons and neutrons

The electrons of an atom
Select one:
a. have a positive charge.
b. are attracted to the positive charge of neutrons.
c. orbit the nucleus in various energy levels.
d. are found in the nucleus along with the protons.

Answers

Answer:

tbh im not goin say this easy answer to u bc thats 5th grade work fr

Explanation:

Answer:

b

Explanation:

i kinda think is that because of my class

With respect to energy, Earth is a........
closed system
Integrated system
layered system
open system

Answers

Closed system because I used safari for 5 minutes!

How is the phrase, “you are what you eat,” related to metabolism? Explain what that means.

Answers

Answer:

Because when you metabolize something you adsorb it's nutrients.

Explanation:

Is self-explanatory. Look at the answer...

a, b, c, d. first to answer gets brainliest

Answers

Answer:

I'm pretty sure the answer is C

Explanation:

Sorry if wrong.

The 6 classes are oxides, sulfides, carbonates, sulfates, hailers, and phosphates. Which would mean the one missing from the chart is D- sulfates! <3

Petrified wood is a beautiful material that forms over thousands of years. It occurs when forests get covered in rock and sediment. Which statement is true?


1. It is a mineral now that the Earth has changed it

2. It is not a mineral because the material was organic

3. It is a mineral as long as it displays the crystal structure

4. It is not a mineral because it has a definite composition

Answers

Answer:

4. It is not a mineral because it has a definite composition

1. How did Hooke's work contribute to the cell theory?

Answers

Answer:

He looked at thin slices of cork through his microscope and discovered little tiny "cells," which he named because he described the plant cells as resembling the cells where monks lived. He then developed this discovery into cell theory.

which is not an example of a molecule?
a)NCI3
b)O3
c)H2O2
d) F

Answers

The answer for that is C
I believe the answer is c



5. A compound that produces hydrogen ions in
solution is a(an)
a. salt.
c. base.
b. acid.
d. polymer.
11.
12

Answers

Answer:

The answer is b

Explanation:

an acid is a compound that donates hydrogen ion

Section I: Experimental Overview


Use your answers from questions 1–3 as the basis for the first section of your lab report. This section provides your reader with background information about why you conducted this experiment and how it was completed. Outline the steps of the procedure in full sentences. It also provides potential answers (your hypothesis/es) relative to what you expected the experiment to demonstrate. This section should be 1–3 paragraphs in length.



Section II: Data and Observations
Use your answers from questions 4–5 as the basis for the second section of your lab report. This section provides your reader with the data from the experiment, in a summarized and concise way. No paragraphs are required for this section, but you do need to include the key data and observations from which you will generate your analysis and discussion. This section is objective.

Section III: Analysis and Discussion
Use your answers from questions 6–8 as the basis for the third section of your lab report. This section provides your reader with your interpretation of the data set. You will also give an example of any calculations or formulas you used to analyze your data. Also, you will want to include any graphs that you made and interpret them for the reader.
If you did construct graphs, your Student Guide included information on which graphs to construct. Graphs should have the following:

a. Appropriate titles
b. Appropriate labels for each axis
c. Appropriate scales for each axis
d. Correct units for the data

Complete a rough sketch of each graph. Explain in one or two sentences what trend the reader should observe in each of your graphs.
Mention any problems, unusual or unexpected data, or other factors with the experiment here, and suggest possible causes. This section can be somewhat subjective, unlike Section II, because you are free to include your personal interpretations or even speculation if it adds constructive, reasonable insight to the discussion.
This section is variable in length, and should likely be the longest part of your report.

Section IV: Conclusions
Use your answers from questions 9-11 as the basis for the fourth section of your lab report. In this section you will summarize the outcome of the experiment, and discuss how the original hypothesis(es) was (were) either supported or refuted. Use logic and reason in explaining your statements, and be sure to refer to specific data from your experiment that supports your argument.

This section also demonstrates your understanding of the experiment, through your ability to offer constructive criticism about its design and make suggestions for future experimentation. There are always ways that experiments can be improved. Now that you are a veteran of this experiment and have experience with the procedure, offer some advice to the next scientist about what you suggest and why.

This section should be 1–2 paragraphs long.

Overall
When complete, the lab report should be read as a coherent whole. Make sure that you connect different pieces with relevant transitions. Review for proper grammar, spelling, punctuation, formatting, and other conventions of organization and good writing.

Answers

Answer:

The main purpose of this lab is to perform different experiments and the importance of the topic is that it supports the essayś thesis statement.

Explanation:

Thatś the answer :)

A lab report gives a description of the aim of the experiment, the materials used, the procedure followed, the results obtained, and any conclusions made.

What is a lab report?

A lab report is a report of work done in a laboratory experiment.

The laboratory experiment may be to prove or disprove a hypothesis.

A laboratory experiment answers a question logically through a series of steps.

Therefore, in a lab report, the aim of the experiment, the materials used, the procedure followed, the results obtained, and any conclusions are recorded.

Learn more about lab report at: https://brainly.com/question/538470

#SPJ2

True or False. All mutations result in a change to the amino acid.
O True
False

Answers

Answer:

False false false false false false false false false false false

Answer:

False

Explanation:

Which two elements are always found in amino acids?

Answers

Answer:

carbon and oxygen

Explanation:

hope this helps :)

Which of the following best describes the size of an average animal cell?
A. Smaller than the width of a human hair.
B. Approximately 0.1 mm wide.
C. Approximately 1 mm wide.
D. Smaller than a breadbox.

Answers

Answer:

The answer Is A "Smaller that the with of a human hair"

My Logic:

Cells make up a human hair follicle so the cell needs to be smaller that the Hair. And a human hair is much smaller than .1 mm wide. Hope this Helps!

Which of the following activities is most likely to result in nutrient pollution?
a. cutting down trees
b. pouring motor oil down the drain
c. excess fertilizer use
d. none of the above

Answers

C. Excess fertilizer use

The process by which plants transfer water into the air.

Answers

Photosynthesis is the answer
Photosynthesis is what transfers water into air

PLEASE PLS PLS ANSWER ASAP!!! WILL GIVE BRAINLIEST

Which of the following is not an examle of physical weathering?

a water freezing which causes rocks to expand and break down.

b Plant roots growing into gaps of rocks which causes rocks to break apart.

c When wind causes sediment to come into direct contact with other rocks which then
start to break down.

d Acid rain reacting with rocks

Answers

Answer:

I think B

Explanation:

Because it is not a physical weathering example, it is not based on the weather it is based on a growing plant.

No two species can occupy the same niche in the same habitat at the same time

a. because of the interactions that shape the ecosystem.

b. unless the species require different abiotic factors.
because of the competitive exclusion principle.

d. unless the species require different biotic factors.

Answers

The answer is b hope it help

WILL MARK BRAINLIEST!!!! Can someone help me with this question?

What observations did scientists make when they collected and dissected rockfish?

Answers

Answer:

Rockfish larvae are pelagic, there is genetic evidence for limited dispersal within Puget Sound for the quillback and copper (S. caurinus) rockfish (Seeb 1998) as well as for differentiation from coastal populations of brown rockfish (S. auriculatus) (Buonaccorsi et al. 2002). This degree of population structure is consistent with other genetic and otolith studies from coastal Pacific rockfish populations

Answer:

Rockfish larvae are pelagic

Explanation:

Which statements best describe science? Check all that apply.
Science uses beliefs and opinions to construct explanations.
Science is resistant to new information.
Science is supported by facts and processes.
Science involves observation and experimentation.
Science continually changes and is constantly updated.

Answers

Answer:

3,4,5

Explanation:

The first two are false

Answer:

345

Explanation:

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

What features are formed along the divergent boundary?

Answers

rift valleys

mid oceanic ridges

why is fire matter and why is ice matter ?

Answers

Answer:

becouse ice is a solid and fire predouses heat

Explanation:

Answer:

Matter is defined as anything that has mass. Since ice and fire both have mass, they are considered matter. It's easier to see in ice. Ice obviously takes up space and has mass. Fire is a type of plasma. It is oxygen, nitrogen, carbon, and a few other gasses that are extremely hot. They also take up space, have mass, and are hence, matter.

The Law of Segregation states that: Question 6 options: Dominant traits will segregate with other dominant traits Genes segregate equally into gametes Recessive traits always segregate together Genes do not influence each other with regard to sorting into gametes

Answers

Answer:

Genes segregate equally into gametes

Explanation:

Gregor Mendel, due to his contribution to genetics, is referred to as the FATHER OF GENETICS. Among his contribution is the principles that governs inheritance in organisms. One of those principles is LAW OF SEGREGATION.

LAW OF SEGREGATION states that the alleles of a particular gene will separate into gametes in an equal manner. For example, in a gene Aa, each gamete produced by the organism with this gene will contain either allele A or allele a in equal proportion.

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