What is the speed of sound in air?
A 1000 meters per second
B. 335 meters per second
C.25 meters per second
D. 2500 meters per second

Answers

Answer 1

Answer:

its D

Explanation:

source: trusted me bro....

Answer 2

Answer:

it's actually: B. 335 meters per second

Explanation:


Related Questions

PLEASE HURRY . I AM BEING TIMED!!! (5:53) How are the international efforts at reducing resource and ecological depletion similar?

Answers

Answer:

Explanation: they operate on volunteer basis rather than a mandatory one. Because the nations do not have jurisdiction over each other.

Answer:

International efforts to reduce resource and ecological depletion operate on a volunteer basis rather than a mandatory one. This is due to the fact that nations do not have jurisdiction over each other.

Explanation:

just took practice edg 2021

meet. /vss-dkir-kfy interested only​

Answers

Answer:

no <3

Explanation:

what is the difference between cell structure and cell function? ​

Answers

Answer:

These cells have a membrane-bound nucleus that houses their DNA and contain extensive internal organelles (“little organs”) that perform specific functions. ... Differences occur in size, shape, and presence and number of various organelles and other structures. Each cell's structure correlates with its specific function.

Explanation:

Answer:

A cell can be defined as the smallest unit of life and an example include muscle cells. An aggregation of cells form tissues.

The major difference between a cell structure and cell function is in their functions and physical properties.

Cell structure: This talks about how the cells look like when viewed. A call contains components such as the nucleus, cytoplasm, cell membrane etc and each has their various functions to ensure the organisms/animals are able to perform various life activities.

Cell function: This on the other hand refers to the various functions which a cell is able to perform and this is dependent on the component in question such as the nucleus which controls cell activities and cytoplasm which provides support and helps to house other organelles.

Read more on  https://brainly.com/question/19715268

Competition occurs when organisms try to use the same limited resource. True or False

Answers

Answer:

the answer is

true and this organism are called

inter specific organism

Why can’t food chains go on forever?

Answers

Answer:

Because at some point in that food chain, the energy consumption has it's limit, and the predator will not have anything to hunt it. There is a limited amount of energy in a food chain that can go around, and once you reach the predator, that energy doesn't quite run out but it hits that limit where the chain has to repeat itself.

Explanation:

Carbon dioxide is released by

Answers

Answer:

Carbon dioxide is added to the atmosphere by human activities. When hydrocarbon fuels (i.e. wood, coal, natural gas, gasoline, and oil) are burned, carbon dioxide is released. During combustion or burning, carbon from fossil fuels combine with oxygen in the air to form carbon dioxide and water vapor.

Explanation:

Which pieces of information do you need to locate a particular star on a star
chart?
Check all that are true.
A:the star's size
B:the star's right ascension
C:the star's declination
D:the star's magnitude

Answers

Answer:

B & C

Explanation:

RA is basically the time and longitude coordinates, and dec. is N/S coordinates.

In mice, black fur is dominant to white fur. Two mice with black fur are placed in the same cage and have several litters. Of all the offspring, 7 mice have white fur and 19 mice have black fur. Which of the following crosses could produce this combination?



Question 2 options:

a. BB x bb


b. Bb x bb


c. Bb x Bb


d. bb x bb

Answers

Answer:

I am unsure, but i would go with c.

Explanation:

We just finished learning about this in my class so it is pretty fresh in my mind i just had a little trouble with it when we did it.

Answer: it's most likely to be A.

Which of the following is a benefit of genetic engineering to humans?
Reducing diversity of organisms
B
Developing medicines for humans
Decreasing the yield of crops
Producing foods with low nutritional value

Answers

The answer is B. Developing medicines for humans.

Answer choice A would not benefit society, nor would answer choices C and D.

Brainliest please!

HELPPPP PLEASE THE THING IS 53 POINTS

Answers

Answer:

B. Erosion

Explanation:

I think

Answer:

b

Explanation:

why did china remain isolated

Answers

Answer:

In the last 50 years or so of the Ming Dyansties, the emperor simply lacked the necessary resources and man power to sustain large amounts of trade, causing China to become isolated from the world.

Explanation:

What are the two main differences between capillaries in the periphery and capillaries surrounding the brain

Answers

Answer:

The options are not given but they are gotten from another websites.

A. Capillaries surrounding the brain have no pores and are surrounded by membranes of astrocyte cells.

B. Capillaries surrounding the brain have pores and are surrounded by membranes of astrocyte cells.

C. Capillaries surrounding the brain have no pores and are not surrounded by membranes of astrocyte cells.

D. Capillaries surrounding the brain have pores and are not surrounded by membranes of astrocyte cells.

The correct answer is option A.

Capillaries surrounding the brain have no pores and are surrounded by membranes of astrocyte cells.

Explanation:

Capillaries surrounding the brain have no pores and are surrounded by membranes of astrocyte cells because

Capillaries are tiny blood vessels in the circulatory system that connect aterioles to venules. They are the most abundant or they are much blood vessels. They can penetrate the tissues of the body which allow passage of food nutrients, oxygen in the body thereby allowing exchange of nutrients and oxygen between the body tissues and the blood.

Capillaries surrounding the brain have no pores and are surrounded by membranes of astrocyte cells while capillaries in the periphery Capillaries surrounding the brain have pores and are not surrounded by membranes of astrocyte cells.

How do moose use a learned behavior to protect themselves

Answers

Answer:

They roll in a pool of muddy water to avoid fly bites

Explanation:

Moose is the largest species of deer and inhabits the northern regions of Europe (Scandinavia), Siberia, Canada, and a large subspecies - the great moose - inhabits Alaska.

The moose is one of the first domesticated domestic animals. It was domesticated a long time ago - it is believed that it was about 4-5 thousand years ago, maybe even earlier.

A(n)
is a substance that an organism needs for growth and survival but
cannot make for itself

A) Nutrient
B) Consumer
C) Producer
D) Inheritance

Answers

Answer:

Nutrient

Explanation:

Hope this helps!

What is the material that allows plants to capture energy from the sun? How many different types of this material are there? (site 1)

Answers

Answer: The molecules of chlorophyll contained in the chloroplasts absorb energy in the form of light from the sun. This is the process called Photosynthesis, by which plants convert energy from the sun. It is the process that allows plants to create organic molecules that they use as fuel.

Explanation:

During the process of photosynthesis, plants capture light energy and use it to convert water, carbon dioxide, and minerals into oxygen (released into the air) and glucose (stored in the plant and used as food). The photosynthesis process occurs in all plants and algae, as well as in some bacteria species.

7. HELP URGENT BEAINLYWhat does most cell division produce?

Answers

Answer:

There are two mitosis and meiosis.

which of the following is not a constant?

a. plant height
b. types of beans
c. amount of fertilizer
d. hours of sun exposure

Answers

Answer:

a. plant height.

Explanation:

As you can see in the diagram the plant heights are varied.

how are the processes of photos sentences and saw your respiration opposites of one another

Answers

Answer:

This question is not well structured. Based on understanding, the correct structure should be: How are the processes of photosynthesis and respiration opposites of one another?

They are opposite because photosynthesis uses the products of cellular respiration and vice versa.

Explanation:

Photosynthesis and cellular respiration are both metabolic processes that occurs within the cells of living organisms. Photosynthesis is the process where green plants synthesize food (sugar) in the presence of sunlight using carbon dioxide (CO2) and water (H2O). The general equation is as follows:

6CO2 + 6H2O → C6H12O6 + 6O2

On the other hand, respiration is the process whereby cells of living organisms synthesize usable energy (ATP) for use by breaking down glucose (C6H12O6) in the presence of oxygen. The equation is as follows:

C6H12O6 + 6O2 → 6CO2 + 6H2O

Based on the observation of the reactants and products of each process, it can be realized that the PRODUCTS of one process is the REACTANTS of the other. In other words, photosynthesis makes use of CO2 and water as REACTANTS, which are the PRODUCTS of respiration while cellular respiration uses glucose and oxygen as REACTANTS, which are PRODUCTS of photosynthesis.

The process of inducing changes in specific sections of DNA is referred to as?

Answers

Mutation it what it is referred to
It is mutation. Mutation causes changes in DNA

Pls helpp! Thanks y’all

Answers

Hey There!_____________________________________Answer:

[tex]\huge\boxed{OptionA}[/tex]

_____________________________________

Since there is 1 Hom.ozygous Dominant trait and 2 heterozygous dominant trait and 1 Hom.ozygous recessive trait,

We get This kind of punnet square, when Two heterozygous Parents cross with eachother.

_____________________________________Best Regards,'Borz'

how does an organism reproduce by budding

Answers

Budding is a kind of asexual reproduction. It occurs most commonly in some bacteria and yeast. Organisms which reproduces in this fashion are usually very basic organisms that either lack reproductive organs or both female and male reproductive organs are located internally.
Examples of such animals are:
1. flat worms
2. Jelly fish
3. Sea anemones
4. corals.
5. Yeast cells (such as are found in baker's yeast)
The coral reef is a large colony of living organisms identical to each other, which propagate themselves through budding.

Explain how a concentration gradient, a membrane protein, and hydrogen ions work together to provide a mitochondrion with the energy needed to join small molecules together?

Answers

During the electron transport, chan energy stored in electrons is used to pump hydrogen protons from the mitochondrial matrix to the intermembrane space. The numbers of protons increase this creates a chemical gradient(because there is a higher concentration of ions) and an electrical gradient(because the intermembrane space becomes more positive than the matrix because of the protons-H⁺). Those protons need to flow towards the matrix for equilibrium to occur. As we know the inside membrane of the mitochondria has a reduced permeability. The main place where protons can diffuse is the ATP-synthase(a protein that turns ADP and inorganic phosphate into ATP). When protons pass through they release the energy necessary for this reaction to occur(ADP+H₃PO₄-->ATP+H₂O)

A concentration gradient, a membrane protein, and hydrogen ions work together to provide a mitochondria with the energy needed to join small molecules together through ATP. The H+ ions are pumped across by membrane “pump proteins” into a space bounded by memb ranes that contain numerous amounts of hydrogen ions. Then, electrons are passed from o ne membrane-bound enzyme to another, which causes some energy to get lost during eac h transfer. This “lost energy” allows the pumping of hydrogen ions against the concentratio n gradient. After all the steps are taken, the mitochondrion will be provided with the energy needed to join small molecules together.

The weather in a location is related to
a Air temperature
b Precipitation
c Wind speed and direction
d All of the above

Answers

The answer is D. All of the above

Answer:

all of the above

Explanation:

At which type of boundary do rocks react to tectonic stress and pull away leading to the formation of new crust?

Answers

Answer:

Divergent boundary.

Explanation:

At divergent plate boundaries, plates react to tectonic stress and move away from each other. Magma from the mantle hardens on the edge of each plate, forming new crust. I hope this helps!

In the periodic table, vertical columns are called periods.
TRUE
FALSE

Answers

Answer:

FALSE

Explanation:

In the periodic table, vertical columns are called GROUPS.

This is a FALSE statement

The horizontal rows on the periodic table are called periods.

Water molecules are _____ due to _____ bonding

Answers

Answer:

water molecules are cohesive due to hydrogen bonding.

Explanation:

Help please ! Thanks

Answers

Answer:

75%

Explanation:

The allele for purple flowers (capital P) is dominant.

The allele for white flowers (lowercase p) is recessive.

If one allele is capital P, it doesn’t matter if the other allele is another capital P or a lower case p, the capital P will dominate and purple flowers will show up.

The Punnett Square shows:

PP, Pp, Pp, and pp

• 3 of the offspring have at least one dominant and capital P, so purple flowers show up.

• 1 of the offspring has two lowercase and recessive alleles (p), so white flowers show up.

3/4 or 75% of the offspring will have purple flowers.

Hey There! _____________________________________ Answer:

[tex]\huge\boxed{Option A}[/tex]

_____________________________________ PEA PLANT:

Pea plant has purple color flowers dominant over white color flowers.

Purple flower dominant allele is P

White Flower recessive allele is p

We would get White flower pea plant only when the recessive allele is in HOMO.ZYGOUS condition

_________________________________________________________

CONDITIONS:

Hom.ozygous Dominant Alleles: PP (Purple Flower)

Heter.ozygous Dominant Alleles: Pp Purple Flower)

Hom.ozygous Recessive Alleles: pp (White Flower)

____________________________________ CROSS:

Whenever we cross Heterozygous Dominant(Pp) purple flower with another Heterozygous dominant (Pp purple flower), we get 75% of the flowers PHENOTIPICALLY(physical appearance) white flowered, and 25 white flowered Because as you can see in the picture,

The P1 is Pp

The P2 is Pp

When we cross them,

It has 4 offsprings,

PP Hom.ozygous Purple flower  

Pp Heterozygous Purple flower

Pp Heterozygous Purple flower

pp Hom.ozygous white flower

Thus the answer is 75% as there are phynotypically 3 purple flowers present

_____________________________________ Best Regards, 'Borz'

Which of these is an example of a CLIMATE region zone?
A. tropical
B. foggy
C. overcast
D. sunny

Answers

Answer:

tropical

Explanation:

Answer: B foggy

hope i helped others who really need it!

The Sun is a fairly normal star.
True
False

Answers

Answer:

Yes.

Explanation:

The Sun is a medium sized star

Explain how it is possible for nutrients to be transported to the cells of a flatworm with no circulatory system.

Answers

Answer:

Flatworms are beings that do not have a heart, veins, arteries, capillaries, hemolymph, or some type of circulatory fluid. Their circulation occurs between cells or intercellularly and they are responsible for transporting substances by diffusion from cell to cell.

Explanation:

Flatworms are considered multicellular eukaryotic organisms. This implies that in their cells they have a cellular nucleus, in which the DNA is contained, structuring the chromosomes. Likewise, they are made up of several types of cells, each one specialized in a specific function. They lack a structured circulatory system as such. Because of this they do not have specialized structures such as a heart or blood vessels, however, the circulation of certain substances is established between their cells. This is done thanks to the diffusion process. Substances pass from one cell to another through this process.This does not apply to all flatworms, since in some species of bog and digenae there is a certain organization and some very small conducting vessels known as the endolymphatic system, the which forms a kind of plexus in the parenchyma.It should also be noted that some species do not even have a digestive system, being the digestive tract the one in charge of digestive functions and the distribution of the nutrients they receive.

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