Which of the following is a mixture? ​

Answers

Answer 1

Answer:

⭕ Air

HOPE IT helps!

Answer 2

Answer:

Air

Explanation:

Air is a mixture of various different gases such as nitrogen, oxygen, carbon dioxide etc.

Soil is not a mixture as it is chemically combined.

Ocean is not a mixture as it made up of water molecules only


Related Questions

What order do these go in?
A-Chromosome
B-Nucleus
C-Cell
D-Gene

These aren't in order. I just need to know what order to put them in.

Answers

Answer:

Cell

Nucleus

Chromosome

Gene

I guess

Answer:

The order from smallest to largest is  nucleotide,gene,DNA,chromosome,nucleus,cell,organism

Explanation:

Nucleotide the buiding blocks of DNA are the smallest among the given options.DNA is bigger than gene but smaller than chromosome as DNA fits within a chromosome.

   On the other hand chromosome is present within the nucleus.Nucleus along with cytoplasm and various cell organelles builds a cell.

  Many cells are specifically arranged to form an organism.

So the order from smallest to largest is

NucleotidegeneDNAchromosomeNucleuscellorganism

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What pigment do plants use as a catalyst for photosynthesis?
A. Water

B. Cyanobacteria

C. Chlorophyll

D. Carbon dioxide

Answers

Answer:

Chlorophylls are natural green pigments ubiquitously present in plant kingdom, which play an important role in photosynthetic process, a vital function for life on Earth.

Explanation:

Your turn. Now you have to find the right answer based off my explanation

Answer:

C. Chlorophyll

Explanation:

Chlorophyll is the pigment, that plants use as a catalyst for photosynthesis.

Part E
Explain your justification for the changes in trait distribution between years 1 and 10. What do you think will happen to the population by year 15?

Answers

Answer:

It will continue to rise.

Explanation:

Genetic variation results in the changes in trait over the period of time. Hence, traits do change over the years, but it is a gradual process. The population will become more stable due to successful traits.

What is genetic variation?

Genetic variation refers to the changes in the genotype of an individual. It imparts stability to the population. Genetic variation results from meiotic cell division where recombination of gene produces genetic exchange of heredity material.

Those traits which are successful in nature that means those variations which provide stability to the organism in any environment are favoured. Organisms with such variations adapt, survive and further reproduce to continue their existence. Such traits are transmitted to the progeny as well.

Thus, gradual accumulation of changes in traits contribute to a more stable population over the span of years.

Therefore, changes in traits are important in determining the track of evolution on earth.

Learn more about traits, here:

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I really need help on this question and nooo links the question is in the screenshot

biomagnification

eutrophication

global warming

biogeochemical cycles

Answers

it’s biomagnifications

Two children and their dog are outside. The children are skating, and the dog is eating. It begins to rain, and the children and dog rush inside so quickly that it causes them to breathe more rapidly. When they are inside, the children dry their hair using towels, and the dog dries it's fur by shaking it's fur.
Look at the list of actions below:
1. The children skating
2. The dog eating
3. The children breathing more rapidly
4. The dog breathing more rapidly
5. The children using towels to dry their hair
6. The dog shaking it's fur to dry it's fur
Which actions best represent inherited behaviors?
A - 2,3,4,6
B - 2,4,6
C - 1,5
D - 1,2,3,4,5,6

Answers

I think the answer is D. Because it has the most numbers that make sense

Which microscope were cells first observed?

Answers

Answer:

Leeuwenhoek made his own microscope lenses, and he was so good at it that his microscope was more powerful than other microscopes of his day. In fact, Leeuwenhoek's microscope was almost as strong as modern light microscopes.

Explanation:

Hope this helps you

It’s called a electron microscope and it had a HUGE impact on biology :)

And your Answer is Best management practices (BMPs) are methods that have been determined to be the most effective and practical means of preventing or reducing non-point source pollution to help achieve water quality goals. BMPS includes both measures to prevent pollution and measures to mitigate the pollution.

Answers

Answer:

Use Fertilizers Wisely.

Apply Pesticides Wisely.

Use Landscaping Practices that Prevent Erosion.

Wash Your Vehicle Wisely.

Dispose of Pet Waste.

Use and Dispose of Household Chemicals Safely.

Evaluate Existing Roads

Cancer cells do not respond to signals
that regulate what process?
A. transcription
B. cell cycle
c. metabolism

Answers

Answer: Cell cycle, B

Cancer cells do not respond to the signals that regulate the process of cell cycle. The correct option is B.

What signals do cancer cells respond?

Cancer cells do not respond to signals that regulate the cell cycle. The cell cycle is the process by which cells grow, divide, and create new cells. Normally, cells are tightly regulated by signals that tell them when to start and stop the cell cycle.

However, cancer cells have mutations that allow them to ignore these signals and continue dividing uncontrollably. This leads to the formation of tumors and the spread of cancer throughout the body.

Cancer cells often ignore signals that regulate the cell cycle, leading to uncontrolled growth and division, which ultimately contributes to the formation of tumors.

Therefore, the correct option is B.

Learn more about Cancer cells here:

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Which of the following could be reasons why population sizes may reach and maintain plateaus? Select the three (3) that apply.

Answers

Answer:

limits in food supply

competition with other species

competition for space

What maintains the average global temperature suitable for living organisms?

A)fossil fuels

B)tropical storms

C)volcanic activity

D)greenhouse gases

Answers

D. greenhouse gases is the answer

greenhouse gases

The atmosphere traps and distributes the sun's heat energy.

a. Explain how photosynthesis allows carbon to be sequestered naturally by plants.

Answers

Answer:

Plants absorb carbon  from the air and use the sun's energy to  make sugars and other carbohydrates which the plant can store and use later or be used by other organisms.

Explanation:

How do roots and seeds get oxygen to produce energy through cellular respiration?
A. from the water

B. from fertilizer

C. the soil must contain oxygen

D. the leaves send oxygen to the roots

Answers

Answer: C: the soil must contain oxygen

Answer:

C. the soil must contain oxygen

Explanation:

Roots of plant take oxygen from air that is present in-between the particles of soil.

Don't fail me now brainly!!!!
21. For each of the following, state the type of input energy and the useful output

energy.

a. battery

b. gas-powered weed-eater

c. bedside lamp

d. horn on a bicycle






Input Energy

Useful Output Energy

4

Battery







Gas-Powered Weed-eater







Bedside lamp







Horn on a bicycle

Answers

Answer:

Explanation:

if you get the nintindo 64 throw it out a window then call the garbage man hit the folks den shake his hand he will give you the math answer and you have to cll hm on the newest flip phone out right now

what is a genotype
A.)an organism's combination of genes for a trait
B.)the collection of dominant genes in an organism
c.) the ratio of dominant to recessive genes in an individual
D.) an organism's appearance as a result of its genes

Answers

Answer:

The answer is B

Explanation:

because that contains dominant genes

Scientists have observed the exponential growth of lionfish in the Caribbean Sea. Which of these predictions about the future of the lionfish
population is the most likely to occur?
А.
The lionfish population will continue growing exponentially indefinitely
В.
A limiting factor will cause the growth of the lionfish population to slow down, forming a pattern of logistic growth
ооо
C. A limiting factor will cause the lionfish population to decline rapidly, and eventually decrease to near zero.
D
The lionfish population will enter a cycle of increasing and decreasing numbers, typical of many predators and prey.

Answers

Answer:

B

Explanation:

thank me later :)

Answer:

answer is D

Explanation:

I got it right in exam

What information did you include in your response? Multiple Choice

A. Crossing over is the process by which genetic material is exchanged by non-sister chromatids during meiosis.

B. Crossing over results in a new combination of genetic information for the cell for a specific trait.

C. Crossing over ensures that organisms are not identical from generation to generation.
D. Genetic recombination allows for a variation in genetic material that is passed through the generations.

Answers

Only you can answer this unless the last response is given.

Answer:

click any answer and it will be correct

Explanation:

Which of the following best describes the difference between an adaptation and adapting?

Answers

Answer:

which following??!

Explanation:

thanks for points :)

What are some nonlethal solutions to the problem of wolves attacking cattle and sheep?

Answers

Answer:Fences, loud alarms, and keeping animals in a safe space

Explanation:

Maintaining a large population of the predators' natural prey is one newly proved strategy for reducing wolf-cattle conflicts. Wolves prefer to consume native wild animals, and dwindling deer or elk populations encourage them to seek out sheep and cattle.

This animal represents what kind of body symmetry?

- asymmetry

- radial symmetry

- bilateral symmetry

Answers

Answer:

Bilateral symmetry

Explanation:

the property of being divisible into symmetrical halves on either side of a unique plane. I am pretty sure itis this one, hope i helped you!

Bilateral symmetry is the ANWSER

Proof it’s just bilateral

During which stage does a cell experience growth and chromosome replication?

Answers

s phase for mitosis. so yea

can someone plzzz help thank youu

Answers

Answer:

The last one.

Answer:

34-38

Explanation:

complete oxidation of glucose yield 34 to 38 ATPs

If the temperature decreases to less than the surrounding environment, it will indicate that the atmosphere is unstable.

True
False

Answers

True depending on what environment you are

plz help! Which of the following describes species diversity of a community?

The number of different species present in the community
The measure of species richness and relative abundance of different species
The proportional abundance of different species in a community
The number of mutualistic interactions in a community

Answers

Answer:

The proportional abundance of different species in a community

Answer:

The measure of species richness and relative abundance of different species

double checking
[extra characters]​

Answers

II -rib cage
The first one looks like the esophagus
3rd one- lungs
4th one diaphragm

Which diagram number below represents the liquid layers in the cylinder?

(K) Karo syrup (1.4 g/mL), (V) vegetable oil (0.91 g/mL,) (W) water (1.0 g/mL). Support your answer with a brief explanation.

Answers

Answer:

Diagram 1

Explanation:

The correct diagram that depicts the liquid layers in the cylinder would be diagram 1.

The density of a substance is a measure of how heavy the substance is. Hence, a liquid that is heavier than water (with higher density) would sink in water while a liquid that is less dense than water would float on it.

Therefore, based on the density of the karo syrup (1.4 g/mL), it would take the bottom space in a cylinder, followed by water (1.0 g/mL) while vegetable oil with 0.91 g/mL would float on the former two.

The correct diagram is 1.

Length of Day (how does it affect plants)

Answers

Day length helps plants to regulate their internal clock

source: g00gle

Answer:

When the day length is fewer than 10 hours, most plants do not grow. Even if the temperature is kept within the ideal range — say, in a climate-controlled greenhouse — most plants will go dormant until the magical 10 hours of sunshine per day arrives.

Explanation:

Please help I’ll give brainliest

Answers

Hydrogen because it only has one valence electron I believe.

HELP!!!! FAST!!!! 20 POINTS!!!! You are a traffic accident investigator. You have arrived at the scene of an accident. Two trucks of equal
mass (3,000 kg each) were involved in a rear-end accident at a stop sign. Here is what you know:
• Truck 1 started from rest at the top of a 22-meter hill and coasted toward the intersection.
.
Truck 2 was on a flat stretch of road at the bottom of the hill directly in front of Truck 1.
At the bottom of the hill, Truck 1 was going 20 m/s; Truck 2 was going 35 m/s.
.
There were no skid marks left by Truck 2. The collision occurred at the stop sign where Truck 2 had
stopped
• After the collision, both trucks moved together in the same direction at 10 m/s before slowly rolling
to a stop.
You must now push Truck 2, using 1,000 N of force, 8 meters off to the side of the road so no one
else gets hurt.
1. What was the potential energy of Truck 1 at the top of the hill? 2. What was the kinetic energy of each truck before the began braking? 3. A. How much energy did truck 1 lose from the top to the bottom of the hill? B. Where do you suppose that energy went?

Answers

Answer:

1) Kinetic energy of the truck 1 is 600,000 joules.

Kinetic energy of the truck 2 is 1,837,500 joules.

2 a)Potential energy of truck 1 is 646,800 Joules.

b) Energy lose by the truck 1 just got converted into heat and sound energy during the collision.

Step-by-step explanation:

Mass of the truck 1 and truck 2,m = 3000 kg

Velocity of the truck 1,  = = 20 m./s

Velocity of the truck 2, = 35 m./s

1. Kinetic energy of the truck 1:

Kinetic energy of the truck 2:

2.a) Energy loose by the truck 1:

Initial height of the truck on the hill = 22 m

At that height potential energy will be maximum:

Potential energy of truck 1 at that height =  

b) Energy lose by the truck 1 just got converted into heat and sound energy during the collision.

\

An example of something that can be used to support the theory of evolution. Explain.

Answers

Anatomy. Species may share similar physical features because the feature was present in a common ancestor (homologous structures)

How is nuclear chemistry related to radioactive sickness?

Answers

Answer:

Radiation sickness is caused by exposure to a large dose of ionizing radiation over a short period of time, typically greater than about 0.1 Gy/h.

Explanation:

Hope this helps you

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