I'll give brainist to the correct answer!!
Which choice is a compound?
oxygen
carbon
carbon dioxide
air

Answers

Answer 1

Answer:

Carbon dioxide

Explanation:

The others are just lonely elements all by themselves. A compound is when they are joined together, like carbon dioxide, or CO2, which is one carbon atom and two oxygen atoms.


Related Questions

through which material would you expect sound waves to move fastest

Answers

Answer:

Solids

Explanation:

Sound travels fastest through solids. This is because molecules in a solid medium are much closer together than those in a liquid or gas, allowing sound waves to travel more quickly through it. In fact, sound waves travel over 17 times faster through steel than through air.

Pls fill in the balnks

The ______________ contains the reproductive organs of the plants.

Cell wall is mainly composed of _________________.

The seven main organs of flowering plants are: i. ____________ ii. _______________ iii. ______________ iv. __________________ v. ________________ vi. _________________ vii. _________________

Red blood cells carry ___________ around the body.

Another name of white blood cell is _____________

____________ are the most numerous things on the planet.

_______________ cell has a large number of chloroplasts.

Answers

Answer:

The _____flower_________ contains the reproductive organs of the plants.

Cell wall is mainly composed of ______cellulose___________.

Organ # 1. Roots:

Organ # 2. Stems:

Organ # 3. Leaves:

Organ # 4. Inflorescence:

Organ # 5. Flowers:

Organ # 6. Fruits:

Organ # 7. Seeds:

Explanation:

Answer:flower

Explanation:flowers in a plant have the reproductive system

Which of these items are made of cells? Check all that apply/

air
bacteria
horses
humans
mushrooms
rocks
water

Answers

Answer: everything but air, rocks, and water are made up of cells

Explanation:

Answer:

bacteria

horses

humans

mushrooms

Explanation:

why is it important to use weakened virus in vaccine

Answers

Answer:

It is important for you to use a weakened virus in the vaccine so once injected in your system not only is your body learning to FIGHT the virus but you will become immune to it once your body has practically gotten a taste of it. for example some anti venom antitodes use the ACTUAL venom aswell its vital in vaccines.

Explanation:

Vaccines work by putting a fake virus in your body.Your body will think it is a real virus and attack it. After your white blood cells attacked it, it leaves remembering white blood cells. What are you do is remember what they do is remember the virus so when the real virus enters your body it will fight it off.

During the process of photosynthesis,
which of the following is being created
by producers?

Answers

Answer:

Producers are the plants that use sunlight, water, and carbon dioxide to make their own food. They are called producers because they produce sugars from CO2 which they share with the rest of the world through photosynthesis. The carbohydrates, fats, proteins etc in your diet were all originally made by green plants! All green plants need is CO2 and water to live.

Explanation:

Answer:

Sugar and oxygen

Explanation:

energy from the sun converts the carbon dioxide and water it absorbs into sugar and the byproduct of oxygen

what is iris diaphragm

Answers

Answer:

noun Optics, Photography. a composite diaphragm with a central aperture readily adjustable for size, used to regulate the amount of light admitted to a lens or optical system. Also called iris.

Explanation:

a flat, colored, ring-shaped membrane behind the cornea of the eye, with an adjustable circular opening (pupil) in the center.
Thanks!

A man whose blood group is heterozygous B is married to a woman whose blood up is also heterozygous B

Which of the following statements is correct about the blood group of their four offspring?

Answers

Answer:

for got too bro

Explanation:

Why do you think people start smoking?

Explain and provide a sample situation to support the given words below. (i will mark as the brainliest if who could answer this asap)

1. Parental Role Model

2. Adolescents Experimentation and Rebellion

3. Depression

4. Limited Education

5. Weight Control

6. Aggressive Marketing

7.Stress

8. Addiction

Which statements describe how traits are inherited? Check all that apply.
O An offspring always receives different alleles from each parent.
O An offspring always receives the same alleles from each parent.
O An offspring can receive different alleles or the same alleles from each parent.
O Traits are inherited when proteins are passed from parents to offspring.
O Traits are inherited when genes are passed from parents to offspring.​

Answers

Answer:

C and e ( The 3rd and the 5th one)

Explanation:

Offspring get everything from parents. One could look like either the parental sex: xx or the parent sex: xy

Or the offspring could look like a mixture of each parental or the parental's parents.

Traits received through bloodline are called genes.

Explain the physics of light as it relates to photosynthesis. What is a pigment, what is a photon?

Answers

Explanation:

photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

a pigment is the natural colouring matter of animal or plant tissue.

a photon is a particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation frequency but has zero rest mass.

Answer: Varies

Explanation:

"Pigment" relates to the color and "photons" connect with the electromagnetic force.

© 1. What type of cell is this? What characteristics helped you decide the type of cell? (Identify form/structure.) What is this cell's function? ​

Answers

Answer:

nerve cell

Explanation:

it helps in the nervous parts

it comprises of neuron,dendrides and axons..

The given cell is the nerve cell, as the structure has a single cell body and dendrites that are coming out of the cell body, and it is important for the body as the function is to send information.

What is the work of the nerve cell in the animal body?

In animals, nerve cells are the primary cells that carry information throughout the body and are responsible for transmitting information in the form of electrical and chemical signals, and each neuron has three main parts: the cell body, dendrites, and axons, here the cell body contains the cell's nucleus and other organelles; dendrites are branching extensions of the cell body that receive signals from other neurons or sensory cells; and axons are long structure that transmit signals to other neurons.

Hence, the given cell is the nerve cell, as the structure has a single cell body and dendrites that are coming out of the cell body, and it is important for the body as the function is to send information.

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why behavioral perspectives is the most logical perspectives in your opinion. Explain

Answers

Answer:

The behavioral approach is the most logical perspective because it is easier to quantify and collect data and information when one is conducting a research.

Explanation:

Axons insulated by a(n) _____ are able to conduct impulses faster that those not so insulated.

Answers

Answer:

Much like the insulation around the wires in electrical systems, glial cells form a membraneous sheath surrounding axons called myelin, thereby insulating the axon. This myelination, as it is called, can greatly increase the speed of signals transmitted between neurons (known as action potentials).

Explanation:

for more pls visit

https://www.nature.com/scitable/topicpage/myelin-a-specialized-membrane-for-cell-communication-14367205/

Epistasis is observed when the allele of one gene masks the effects of another gene. Use the Punnett square to answer the question.

What color would a dog's fur be if its genes are aabb? (10 points)

A. yellow
B. brown
C. black
D. white

Answers

Answer:

The color of a dog's fur with the genes aabb would be yellow. So, in other words, Option A is correct.

Hope this helped :D Happy holidays! :D

Epistasis is the effect or character appear due to the interaction between genes. Here, the alleles responsible for the color of dog's fur show epistasis and the progeny with (aabb) genotype will show white colored fur. Thus, the correct option is D.

What is Epistasis?

Epistasis is also known as gene masking, where the expression of one gene is modified or masked or suppressed by the expression of another gene or more other genes. In this, more than one gene controls a specific character such as fur color, etc.

Epistasis is of different types such as dominant epistasis, recessive epistasis depending upon the effect of genes.

Here, the progenies with AABB genotype show black colored fur, the progeny with Aabb show brown colored fur, the progeny with genotype aaBB show yellow colored fur, and therefore, the progeny with genotype aabb i.e., both the recessive genes will show white colored dog fur.

Therefore, the correct option is D.

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in which order do plants development​

Answers

Answer:

According to plant physiologist A. Carl Leopold, the properties of organization seen in a plant are emergent properties which are more than the sum of the individual parts. "The assembly of these tissues and functions into an integrated multicellular organism yields not only the characteristics of the separate parts and processes but also quite a new set of characteristics which would not have been predictable[by whom?] on the basis of examination of the separate parts."[7]

Growth

Leaf development

Flower development

References

What is photosynthesis?
josephconingco10! Please help :)

Answers

in simple,

Preparation of food by plant is called photosynthesis.

Matter begins to move through this food chain when the?

Answers

Answer: When the energy of the sun is captured by plants.

Which statement describes how basic DNA technology is used to construct recombinant DNA molecules? (10 points)

A. Scientists use a gel-filled electrical chamber during gel electrophoresis to isolate DNA fragments.

B. Scientists use restriction enzymes to cut DNA molecules and ligation to paste DNA fragments together.

C. Scientists use heat and bacterial
transformation to add novel DNA into bacterial cells.

D. Scientists use high temperatures to separate strands of DNA molecules during polymerase chain reaction.

Answers

The statement 'Scientists use restriction enzymes to cut DNA molecules and ligation to paste DNA fragments together' describes the construction of recombinant DNA molecules. This technology is called recombinant DNA.

Recombinant DNA is a genetic engineering approach by which scientists uses specific enzymes to cut and paste nucleotide (DNA) target sequences of interest.

The enzymes that recognize and cut DNA are called restriction enzymes, while enzymes that ligate DNA fragments are called ligase enzymes.

Recombinant nucleotide sequences are placed into specific vectors (e.g., a plasmid) that transport the DNA in a host cell in where this sequence is expressed as protein.

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Which of the following best describes the carbon cycle as a whole?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
the flow of carbon through the trophic levels of an ecosystem

(Choice B)
B
the flow of carbon between inorganic and organic sources in the environment

(Choice C)
C
the flow of carbon from rocks on land to oceans during weathering

Answers

The choice to the answer is b

The flow of carbon between inorganic and organic sources in the environment is best description of the carbon cycle as a whole. Thus, option B is correct.

What is carbon cycle ?

It is the process in which carbon compounds are interchanged among the biosphere.

For example the elemental form of carbon such as diamond and graphite in a combined state are mostly found as carbonates and as carbon dioxide gas.

It act as a blanket over our earth, by balancing the energy and also absorb  sun's long wave length radiation.

It also involve in plant photosynthesis, bioaccumulation of carbon occur in animal body by consuming plant material, after the death of the animal it can decomposed and carbon is released back into the atmosphere.

The carbon which is not released back will form  fossil fuels.

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PLEASE HELP WORTH 40 POINTS

Answers

Explanation:

Which question, is it b, c or 4

What is the only thing recycled during the ATP-ADP cycle? *
О
ADP
ОАТР
O Glucose
Sugar Ring

Answers

Your answer would be Glusose

brian period occurred approximately 500 million years ago, and we are currently in the Quaternary period.
PERIOD
ANIMALS
PLANTS
Humans
Flowering
plants
Mammals
Birds
Ginkos
Quatemary
Tertiary
Cretaceous
Jurassic
Triassic
Permian
Pennsylvanian
Mississippian
Devonian
Silurian
Ordovician
Cambrian
Reptiles
Pines
Amphibians
Club mosses
Horsetail rushes
Fems
Animals with shells
Fishes
Based on the chart, describe the trends that can be observed in animal and plant fossils as they evolved over time.
Use evidence from the chart to support your conclusions.
B IV x x Font Sizes
А 三星 三 三
А

Answers

Quaternary is the correct answer

what is Baltimore classification of viruses​

Answers

The Baltimore classification of viruses is a system developed by David Baltimore, allowing for the naming and grouping of RNA or DNA viruses according to their modes of replication.

ANSWER BY AN AI

Answer:

jhiuyhtfgkuguftmff

Explanation:

Drag the correct RNA bases to their matching DNA bases.

Answers

Answer:

DNA and RNA bases are also held together by chemical bonds and have specific base pairing rules. In DNA/RNA base pairing, adenine (A) pairs with uracil (U), and cytosine (C) pairs with guanine (G).

In agranulocytes, what happens to the cytoplasm as the cell ages?

Answers

Answer:

As the cell ages the volume of cytoplasm increases, enzymes that synthesize DNA move from the nucleus to the cytoplasm, and there is a gradual build up of lipofuscin. While it is unclear how this directly affects the cell, it is known that once the DNA migrates from the nucleus it is unable to synthesizes enzymes.

Explanation:

there

Choose all the answers that apply.

Biomass includes _____.

animal waste
paper trash
animals
sunlight
plants

Answers

plants, animal waste, sunlight, and paper trash

which of the following statements best describes nucleic acids?

Answers

Answer:

Large nitrogen-containing polymers found mainly in cell nuclei

Explanation:

The statement that best describes nucleic acids is that they are large nitrogen-containing polymers found mainly in cell nuclei, which is present in Option A. Nucleic acid includes both the DNA and the RNA, and in eukaryotes, these are found in the nucleus.

What is nucleic acid?

The nucleic acid consists of DNA and RNA, which are made up of nucleotides, each of which is composed of a sugar, either deoxyribose sugar (DNA) or ribose sugar (RNA), phosphate, and a nitrogen base. In humans and other eukaryotes, DNA and RNA are present in the nucleus. In the human cell, the DNA is double helical, with hydrogen bonds connecting the strands.

While RNA is a single chain, the majority of it does not form a double helix. Nucleic acids carry out the gene expression present in the cell.

Hence The statement that best describes nucleic acids is that they are large nitrogen-containing polymers found mainly in cell nuclei, which is present in Option A.

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The question is incomplete. Here is the complete question.

Which statement best describes nucleic acids? A. large nitrogen-containing polymers found mainly in cell nuclei B. compounds with both carboxyl and amino functional groups C. bases that pair together in a long double helix

Name two nutrients that plants need.

Answers

Answer:

Sunlight and water.

Explanation:

The sun is the plant's most important nutrient. Plants convert sunlight into sugars in order to grow. Water is needed in two ways, it serves as both a solvent for mineral salts that are carried inside plant cells, and it is an essential component of photosynthesis. The questioner might have asked "name one" so they don't have enough information to answer with any greater certainty - but the answer remains the same regardless of how many nutrients they ask about.

Minerals are also required by plants in order to function properly including calcium, potassium, iron, magnesium just to name a few minerals which are found in healthy nutritious produce!

Answer:

sunlight and water

Explanation:

is the two nutrition that plant need

Meiosis occurs in the organs of which body system?
1.) reproductive
2.) nervous
3.) circulatory
4.) muscle

Answers

Answer:

A Reproductive

Explanation:

A Reproductive is the answer.

Which statement describes a process associated with meiosis?
Haploid cells join to form an organism that has half the number of chromosomes as the parent.
Haploid cells join to form an organism that has a complete set of chromosomes.
Haploid cells join to form an organism that has double the number of chromosomes as the parent.
Haploid cells join to form an organism that is genetically identical to the parent.

Answers

Answer:

B: Haploid cells join to form an organism that has a complete set of chromosomes.

Explanation:

HOPE THIS HELPS!!!!

Haploid cells join to form an organism that has a complete set of chromosomes describes a process associated with meiosis.

What do you mean by meiosis?

Meiosis occurs in the primordial germ cells, which are distinct from the body's normal somatic cells and are designed for sexual reproduction. A germ cell goes through interphase, during which the entire cell, including the genetic material.

In sexually reproducing organisms, meiosis is a unique type of cell division that results in the production of gametes, such as sperm or egg cells. It involves two division rounds that produce four cells with just one copy of each chromosome.

Gametes, or sex cells, are produced during meiosis. Each of the four haploid daughter cells produced during meiosis has half the number of chromosomes as the parent cell.

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can someone answer it! ​

Answers

The answer is because: What is meant by Na+ channel inactivation? The Na+ channel no longer allows Na+ ions to pass through it. What happens when voltage-gated K+ channels open? ... minimum voltage needed to generate an action potential.
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