What component of Earth’s atmosphere exists entirely as a result of photosynthesis?
oxygen gas
water vapor
nitrogen gas
carbon dioxide gas

Answers

Answer 1

Answer: Oxygen

Explanation: Oxygen is primarily produced by photosynthesis.

Answer 2

Answer:

oxygen gas

Explanation:

during the process of photosynthesis in plants the final product is oxygen gas


Related Questions

True or False:
Cold fronts often bring stormy weather.

Answers

Answer:

true, Since the other person said false here's Evidence:

Many fronts cause weather events such as rain, thunderstorms, gusty winds, and tornadoes. At a cold front, there may be dramatic thunderstorms. At a warm front, there may be low stratus clouds. Usually, the skies clear once the front has passed.

Please help me out


Match these examples
Tissue
Organ
Organ system

With these examples
Bone Marrow
Bones
Skeletal system
human body

Answers

Answer:

organ system -skeletal system,bone marrow is a tissue while bones are organ

What stays constant in water (even if you evaporate it or freeze it )?

Answers

Number of molecules

What function makes the HIV virus unique?
A. It has viral DNA that remains dormant until environmental conditions are right.
B. It attacks neurons in the nervous system and causes paralysis
C. It attacks and destroys certain cells in the bodies of its host organisms.
D. It has viral DNA that is transmitted through direct contact with infected persons

Answers

Answer: A

It has viral DNA that remains dormant until environmental conditions are right.

HIV is a unique human RNA virus, capable of infecting cells of the immune system.  

Plz mark brainliest:)

It attacks and destroys certain cells in the bodies of its host organisms. Therefore, option (C) is correct.

What is HIV?

HIV, or human immunodeficiency virus, attacks and destroys a specific type of immune cell called CD4+ T cells. These cells play a critical role in the immune system, and their destruction leads to a loss of immunity and the development of acquired immunodeficiency syndrome (AIDS). HIV is unique in that it specifically targets and attacks these cells, leading to a gradual decline in the body's ability to fight off infections and diseases.

HIV is primarily spread through sexual contact, but can also be spread through sharing needles or from mother to child during pregnancy, childbirth, or breastfeeding. HIV can lead to AIDS (Acquired Immunodeficiency Syndrome) if left untreated.

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living things are made up of very complicated molecules. why is carbon important for forming these complicated molecules

Answers

Answer:

it forms very strong bonds

Explanation:

Answer:

It forms very strong bonds

Explanation:

(Physical science! Help!)

Answers

Answer:

b

Explanation:

The answer would be B!

i need help asap!! I will reward brainliest!

When focusing a specimen it neccessary to focus on the lowest magnification first before switching to higher magnification. why do you think this is important?​

Answers

Explanation:

the lower power will focus betterthan the high magnification

Is it possible for two parents that both have a recessive trait to pass off the dominant trait to their offspring???

Answers

To get a recessive trait, they have to receive one of each from each parent. So in this case, they would be getting one form each parent which would likely give an equal chance of getting either the dominant or recessive trait. Thanks my theory, but hope it helps?

Use fertile in a sentence.

Answers

Answer:

there is an abundance of fertile soil

climate and fertile soil are crucial for plant growth

Climate and a fertile soil have been important elements in this growth.

el nino affects the weather worldwide.
1 True
2 False​

Answers

I believe the answer would be true

Can someone tell me if I explained this right?
I'll give brainliest :}
Background info: Potato cells are placed in different levels of NaCl.

Answers

You explained perfectly!

which organisms does the Barracuda use for energy
a.Cleaner Wrasse
b.Lemon Shark
c.Algae
d.Parrotfish​

Answers

Answer: I believe it's parrot fish

Explanation:I think it's because they aren't bigger than the barracuda i've never heard of them eating algae and Cleaner Wrasse just help the barracuda by cleaning their teeth and mouth area

Which list correctly aligns the levels of organisms from the least to the most complex?


A. cell → tissue → organ → system

B. system → tissue → organ → cell

C. organ → system → tissue → cell

D. tissue → organ → cell → system

Answers

The answer is A

Cells are the simplest unit and systems are made up of organs that are made from tissues that are made from cells.

The organisms that are usually fossilized
by replacement are what?

Answers

Answer:

when the original shell or bone dissolves away and is replaced by a different mineral; when this occurs with permineralization, it is called petrification. In compression, the most common form of fossilization of leaves and ferns, a dark imprint of the fossil remains.

Explanation:

HELP???????????????????????????????

Answers

Answer:

B.) why do some materials rust more quickly than others

The more easily the electrons flow from iron to oxygen, the quicker the metal rusts.

Which of the following is the most important in preventing the spread of
microorganisms in a food establishment?

effective handwashing
wearing gloves when handling food
removing all jewelry
wearing a hair net

Answers

Answer:

effective handwashing

Explanation:

it’s wearing gloves while handling washing i believe to avoid cross contamination- hope this helped!


Vhat is the function of the cell wall in a plant cell?

Answers

Answer:

The cell wall gives the plant stability

Explanation:

Answer:

It surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress.

Explanation:

Which statement best describes the effect on water transport across the cell membrane if the aquaporin in the figure ceases to function?

Answers

Answer:

Water molecules will still be able to move across the cell membrane but at a slower rate.

Explanation:

D isn’t a sensible answer because Aquaporin is a protein with a role to regulate water transport. In its absence, of course there will be defects. And A is impossible due to the existence of active transport. (I also looked it up) (:

Answer:

Water molecules will still be able to move across the cell membrane but at a slower rate.

Explanation:

The aquaporin facilitates water passage, but water can still move across the membrane by osmosis. (osmosis requires no channel protein, but aquaporin makes diffusion faster).

The measure of the mass of an atom is called ________.
Question 1 options:

isotope

proton

energy

atomic mass

Answers

The measure of mass an atom is called atomic mass

Answer:

D

Explanation:

Which homeostatic process moves particles against a concentration gradient?
dynamic equilibrium
passive transport
osmosis
active transport

Answers

Answer:

Active Transport

Explanation:

Active transport is the movement of dissolved molecules into or out of a cell through the cell membrane, from a region of lower concentration to a region of higher concentration. The particles move against the concentration gradient , using energy released during respiration.

  Whoever is reading this is really luck because i know all the answers to this quiz, the answers are:

B- osmosis

B- 12

D- active transport

B- during a negative feedback loop

C- 1000x

C- nucleic acids.

A, B, C, D, F, G- in saliva , in mucus , on a door handle , on a water fountain

C- Which cereal contains the most sugar?

C, D, E- Spindle fibers disappear,  Nuclear membranes form,  Cytoplasm starts to divide.

B- urine

C- cnidarians, mollusks, annelids, arthropods, echinoderms, chordates

A- The contractions would increase.

A- Interphase

B- the cell membrane

C- Its sex cells are haploid and a result of meiosis.

A- mitochondria

A- scanning electron microscope and scanning tunneling microscope.

B- velocity

A- a reflex

C- sublimation and melting

D- B-cells and T-cells

D- scanning tunneling microscope

C- pseudoscience

D- Leonna has a solid, Xiao has a liquid, Blake made a mistake, and Amir has a gas.

C- X: mostly unicellular, nucleus, make or consume food

    Y: mostly multicellular, nucleus, eat dead or decaying organisms

Sorry to everyone who didn't get 100% with all of these answers- these are the answers to the Cumulative Exam Review on edge! -Cvest

What does a food chain show the flow of between living things?

water
carbondioxide
oxygen
energy

Answers

Answer:

energy

Explanation:

cuz i did science

the food chain shows the flow of energy

What is the structure for each macromolecule (what does each one look like?)

Answers

Answer:

Within cells, small organic molecules are joined together to form larger molecules. These large macromolecules may consist of thousands of covalently bonded atoms and weigh more than 100,000 daltons. The four major classes of macromolecules are carbohydrates, lipids, proteins, and nucleic acids.

If a female lion runs a distance of 469.2 meters while chasing an antelope, how many millimeters did she run?

Answers

Answer:

the lion ran 469200 millimeters

Explanation:

469.2 x 100 = 469200

can someone pls go answer my last question its 40 points and a brainliest i just really need it done plsss!!

Answers

Answer:

I tried it dont let me send the answer.

1. Quasars are extremely distant celestial bodies. Investigators
using a special telescope determined that a certain quasar
was emitting waves with a frequency of 1.41 x 10° Hz. An
electromagnetic spectrum is shown.
gamma rays
visible light
Radio
waves
Electromagnetic Spectrum
Infrared Visible Ultraviolet
rays light waves
microwaves
Microwaves
Gamma
rays
X-rays
102
102
10-30
10-12
10-5
5 x 10 10
Wavelength (m)
d
X-rays
www
CLEAR ALL
10*
10
10
1020
102
101 10'
Frequency (Hz)
C
The investigators were most likely using a telescope that
detects-

Answers

Answer: microwaves

Explanation:

The investigators were most likely using a Telescope that detects ; ( C ) microwaves

From the electromagnetic spectrum provided the wavelength of a microwave is 10⁻²  and the frequency of the microwave is about 10⁸ Hz which is closest to 10⁹ Hz. Given that the frequency detected with the use of the spatial telescope was 1.4 * 10⁹ Hz.

The most likely wave that this telescope would detect is Microwave because its frequency falls within the closest frequency range of the telescope.

Hence we can conclude that The investigators were most likely using a Telescope that detects ; ( C ) microwaves

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Disagreement over or competition for a resource is known by which of the following terms?


logistics

conflict

preservation

conservation

Answers

Answer:

I think it's Conflict

Explanation:

It is conflict hope I helped you

An experiment is carried out to determine how different PH values of soil will affect the growth of tomato plants. In this experiment, the dependent variable could be the

A) height of the tomato plants
B) pH of the soil
C) specific variety of tomato plants used
D) pH of enzymes is tomato leaf cells

Answers

Answer:

A. Height of tomato plants

Explanation:

The dependent variable in an experiment is the variable that the experimenter measures or the variable that responds to changes made to the independent variable. The dependent variable is dependent on the independent variable.

In this experiment conducted to determine how different PH values of soil will affect the growth of tomato plants, the growth of the plants is measured by their height. Hence, the dependent variable is the HEIGHT OF THE PLANTS.

How did the development of a waxy cuticle help plants adapt to life on land?
O A. The cuticle minimized water loss from leaves.
B. The cuticle absorbed nutrients from the soil.
C. The cuticle increased photosynthesis.
O D. The cuticle protected reproductive structures.
SUBMIT

Answers

Answer:

a

Explanation:

The cuticle in the plants minimizes the water loss or transpiration from leaves. The correct option is A.

What is transpiration?

Transpiration is the process by which water vapor is lost via the stomata of plants. When the weather is very hot, the plant's loss of water vapor cools it down, and moisture from the stem and roots moves upwards or is 'pulled' into the leaves.

The evaporation of extra water from stomata in plant leaves is known as transpiration. It is necessary for some upward movement of water in plants. It aids in the regulation of plant temperature.

To transpire, water vapor must diffuse through this motionless layer from the stomata to the atmosphere, where it will be removed by moving air. The cuticle present in the waxy leaves prevent excess transpiration.

Thus, the correct option is A.

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Passive transport moves materials from high to low which is ______ the concentration gradient.

Against

Over

With

Around

Answers

Answer:

I think that it is with the gradient because it does not require energy to pass-through

The answer is with the concentration gradient

What is the function of the cell wall?

Site of ribosome production

Site of protein production

Supports and protects plant cells

Site of ATP production

Answers

supports and protects plant cells
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The cat quickly hopped from the floor onto the couch.is an example of what? position, motion, speed, velocity or acceleration need this asap please !:) at a local strawberry farm customers fill a bucket with strawberries. the function f(x)=4x models the cost for the strawberries, where x is the number of pounds of strawberries in the bucket. a bucket can hold up to 10 pounds of strawberries. which is an appropriate domain of the function? *answer choices in picture!* Which statement is true?A) ST RV B) VU ST C) SR TU D) ST UT Which word correctly completes this question?Do _________ Camila et Carla?A. viensB. vientC. viennentD. venirFirst answer gets brainliest and 100 points PLSSSSSSSSSSSS HEEEEEEEEEEELPAre all calories the same?Consider the following two questions as you make up your mind. Are 500 calories from two slices of pizza the same as 500 calories from vegetables? Are you able to eat more calories and still have the same body composition if you eat healthy food?Using your answers to the previous two questions, discuss why you believe all calories are the same, or why you do not believe all calories are the same. An object is dropped from 20. meters above the moon. The acceleration due to gravity on the moon is 1.62 m/s^2a. How long does it take for the object to impact the moon?b. At what speed does it impact the moon? Ms. Carey is planning to host a neighborhood picnic. To make sure she had enough ingredients, she was making a table ofpossible combinations of dried fruit to peanuts for her terrific trail mix. The ratio she used was 3 to 5. The table below showsthe original recipe's ratio of dried fruit to peanuts.Dried Fruit(oz)9Peanuts(oz)452780Which of the following accurately fills in the missing information to identify equivalent ratios for Ms. Carey?A 30 ounces of peanuts and 42 ounces of dried fruitB. 48 ounces of peanuts and 15 ounces of dried fruit C . 3 ounces of peanuts and 54 ounces of dried fruit. D. 15 ounces of peanuts and 48 ounces of dried fruit A sequence can be generated by using an=an1+9, where a1=5 and n is a whole number greater than 1. What are the first four terms in the sequence? A.5, 4, 13, 22B.9, 4, 1, 6C.5, 45, 405, 3645D. 9, 45, 225, 1125 A package of 5 pairs of handmade facemasks costs $32.95. What is the unitprice of one face mask? Each student in the fifth grade donated $12 toward their field trip. There are 74 students in the fifth grade. How much money was donated? Find the root(s) of f(x) = (x + 5)2(x - 9)2(x + 1).-5 with multiplicity 35 with multiplicity 3-9 with multiplicity 29 with multiplicity 2-1 with multiplicity 0-1 with multiplicity 1N1 with multiplicity owith multinlicity 1 Andrea ordered a pizza for dinner. She ate 1/4 of the pizza. Her brother ate 35% of the pizza. Her mom ate .10 of the pizza. How much pizza is left? What was a quote from the text of Edger Allen's 'Tell Tale Heart", That is significant to the story and explain. (preferably with one of the following; figurative language, tone, mood, advancing the plot, personification, characterization, theme.) Shelly buys a desk to sell in her shop. She marks the price up by 35% and sells the desk for $290.25. What price did Shelly pay for the desk? Please explain How do i write the prime factorization of 360 using division by primes? NO ONE IS HELPING ME PLEASE IM FINNA CRY plz help1. How could exploration of a new land bring power to a person? To a nation? 2. Why might nations feel compelled to spread their religious traditions outside of their own borders? 4. How does the desire for power and wealth connect to or conflict with the desire for morality? URGENT!!A golf ball is hit with an initial velocity of 80 feet per second. H= -16t^2 + 80t.1) When will the ball reach 48ft?2) When will the ball reach 110ft? George Balanchine was invited to the US in 1933 by Lincoln Kirstein, a young, wealthy patron of the arts. Complete the following: 1. Write a brief 15-20 sentence paragraph biography of Balanchine. 2. In the 2nd 8-12 sentence paragraph, discuss the impact & importance of George Balanchine in the history if ballet in the United States from 1933 until his death in 1983. URGENT NEED IT NOW how did New Jersey get its name Which of the following is NOT treatment for shock?OA Move the victim to a hard surface.OB. Keep the victim lying down.Get medical help as quickly as possible.OD. Help maintain normal body temperature.