The united nations defines a megacity as having at least how many inhabitants?.

Answers

Answer 1

Answer: 10 million people

Explanation:

A megacity is defined as a city with a population of at least 10 million.

Ex: New York, US; Tokyo, Japan; Shanghai; China


Related Questions

The three main types of food molecules are carbohydrates, proteins and fats.

a) For each of these substances, give three examples of foods and where you would find them.

b) State what each substance is used for in the body.​

Answers

carbohydrates: (ex) bread, pasta, potatoes.
carbohydrates are used as a source of short term energy

proteins: (ex) lean meat, eggs, dairy products.
proteins are used to build muscles and organs, to be stored as fat, and to be burned as energy

fats: (ex) fish and seafood, vegetable oils, and nuts.
fats store energy, insulate us and protect our vital organs

Define plant structure


I can’t think of a paragraph.

Answers

Answer: its a slender structure that supports a plant

What is the largest of the cranial nerves and the most important sensory nerve of the face?.

Answers

Answer:

The Trigeminal Nerve

Explanation:

The largest of the cranial nerves and most important sensory nerve of the face is the trigeminal nerve (letter C).

Why is the coral snake venomous?​

Answers

Answer:

Coral snake bites can be extremely painful and can cause muscular paralysis. The coral snake's venom is one of the most potent venoms in the animal world because it contains powerful neurotoxins. The neurotoxins are responsible for the rapid paralysis and respiratory failure in the coral snake's smaller prey.

Explanation:

How can you determine the cell cycle stage of a plant cell?.

Answers

Answer:

based on measurement of cellular DNA content.

Explanation:

Select all of the limiting factors that are density-dependent. question 12 options: fire disease predation hurricane competition for food competition for light flood waste accumulation

Answers

The limiting factors that are density-dependent are disease, competition and predation.

What are the four main limiting factors in an environment?

The common limiting factors in an ecosystem are food, water, habitat, and mate. The availability of these elements will impact the carrying ability of an environment.

As the population increases, food demand increases as well. Since food is a limited resource, organisms will begin competing for it.

Thus, disease, competition and predation are limiting factors.

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Why is the countercurrent system of flow important for fishes?

Answers

Question: Why is the countercurrent system of flow important for fishes?

Explanation and answer: Fishes use a design called 'countercurrent oxygen exchange' to maximize the amount of oxygen that their blood can pick up. They achieve this by maximizing the amount of time their blood is exposed to water that has a higher oxygen level, even as the blood takes on more oxygen.

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What is always at the start of natural selection?

A: reproduction
B: mutation
C: passing on genes

Answers

Answer:

passing on genes

Explanation:

Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.

The end of the muscle that is attached to a bone or other structure that will move during contraction is called the ____________ .

Answers

Answer:

Tendon

Explanation:

Which statement BEST describes what happens during the S-phase of the cell cycle?

A.Protein synthesis needed for spindle formation and mitosis.

B.DNA replication where the amount of genetic material is doubled.

C.The cell partitions the two copies of genetic material into the two daughter cells.

D.Cell division occurs and two cells are left; thus the cell cycle begins again.

Answers

Answer:

B

Explanation:

The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells.

The feature of earth movement that takes about 26000 years is called

Answers

It takes Earth's axis about 26,000 years to complete a circular "wobble." This wobble is called axial precession. Earth's axis helps determine the North Star, and axial precession helps change it.

Answer:

Precession

Explanation:

its precession

Which best describes how human circulatory and respiratory systems interact

Answers

Answer:

When a person inhales, the lungs expand and fill with fresh air. The respiratory system interacts with the circulatory system to transfer oxygen from fresh air to red blood cells in the lung arteries while also releasing carbon dioxide from the blood into the air in the lungs. When a person exhales, this used air leaves the body.

Explanation:

An antigen has invaded a mammal's body. Specific immune cells engulf and ingest it. Some of the digested pieces are displayed on the cells' bodies. What happens next?

Answers

Answer:

The correct answer is A- B cells are activated and release antibodies

Explanation:

When an antigen invades a mammals body, specific immune cells engulf and ingest it. Some of the digested pieces are displayed on the cells bodies, the next step will be that B cells are activated and release antibodies.

Why can we not see the South Pole-Aitken basin from Earth? The crater is too small to see from Earth. The moon rotates too fast to see any surface features. The crater is on the far side of the moon, which we cannot see. The sun never shines on that side of the moon, so the crater is always in shadow. Why can we not see the South Pole-Aitken basin from Earth? The crater is too small to see from Earth. The moon rotates too fast to see any surface features. The crater is on the far side of the moon, which we cannot see. The sun never shines on that side of the moon, so the crater is always in shadow

Answers

Answer:

i Believe its D.   :D

Explanation:

Hope this helps :p

The presence of freckles (f) is dominant to no freckles (f)

Answers

Ff, Ff, Ff, Ff

Freckles : 100%

No freckles: 0%

Additional vascular tissue produced as secondary growth in a root originates from which cells?.

Answers

Answer:

The vascular cambium produces new vascular tissue and is responsible for most of the radial expansion of stems and roots.

Explanation:

Does this answer your question???

Additional vascular tissue produced as secondary growth in a root originates from Vascular cambium cells.

What is secondary growth?

Secondary growth happens in the vascular cambium of those plants, that is a skinny layer of tissue containing actively dividing cells. The vascular cambium is a meristematic tissue that develops among the stem's number one xylem and number one phloem.

The Vascular Cambium and Secondary Growth. The vascular cambium and cork cambium are secondary meristems which can be fashioned in stems and roots after the tissues of the number one plant frame have differentiated. The vascular cambium is accountable for growing the diameter of stems and roots and for forming woody tissue.

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Which abiotic component of its ecosystem did the owl in the picture above use to build a safe nest?
OA. air
OB. rocks
OC. trees

Answers

Answer:

The answer is rocks

Explanation:

Abiotic factors are nonliving, and biotic factors are living or once living. The tree twigs were once living, and the air wasn't used, so the rocks are the only answer left.

Hope this helps!

B is the answer bc the best is on the rock and that is the only thing stopping the nest from falling

Planning an investigation
Design your own experiment to test how your body changes du changes in heart rate, breathing rate, or any other parameter occurring during exercise.
Part A First, formulate a question to answer through scientific investigation. Keep in mind that you should be able to answer your question with measurable data. Write your question here.​

Answers

Answer:

An experiment to check a person's fitness is designed. The below mentioned parameters are checked 

i need hel at science quick ASAP ​

Answers

Answers:

D) According to the graph, obesity and diabetes are intertwined, which could be why obesity and diabetes are linked.

E) Diabetes had the greatest rise in prevalence in 1997 until 2000, with prevalence percentages between about 76% to 78%.

Explanation: Explanation for these answers are below:

D) Looking at the graph, obesity and diabetes had similar prevalences in 1997 and 1998, and started to part ways a little in 1999.  In fact, even without the graph, scientists have known for a long time that people who have obesity also have diabetes.  This graph supports that claim because of how closely linked diabetes and obesity are and how similar the prevalence percentages are.

E) Diabetes had the greatest rise in 1997 to 2000, which had a 78% prevalence by 2000.  Obesity had very similar prevalence percentages from 75.5% to 77% in 1997 to 2000.

Is NaCI a diatomic element

Answers

Answer:

Yes.

Explanation:

HCl, NaCl, and KBr are all examples of diatomic elements.

Match each event of mitosis to the stage in which it occurs

Answers

Explanation:

their is an active cell division


At room temperature, dry ice (carbon dioxide, CO2) changes directly from solid to gas. What happens as the solid dry ice turns into carbon dioxide gas?
A.CO2 molecules lose mass to become gas.
B.CO2 molecules release heat energy to the air.
C.CO2 molecules absorb heat energy from the air.
D.CO2 molecules react with oxygen and become gas.

Answers

Answer:

A

Explanation:

Carbon dioxide is a gas at room temperature.

When the solid dry ice turns into carbon dioxide gas, the carbon dioxide molecules release heat energy into the air. Thus, the correct option for this question is B.

What happens when the solid dry ice turns into carbon dioxide gas?

When the solid dry ice turns into carbon dioxide gas, the process of sublimation occurs. This process of sublimation significantly converts the dry ice into a gas in the form of water vapor.

It may be revealed that dry ice is known for carbon dioxide in its solid state of matter. The unique property of this dry ice is that it ultimately turns from a solid to gas at room temperature. This is because it provokes water vapor in the air to be condensed into droplets of water thus constructing a fog appearance.

Therefore, the molecules of carbon dioxide release heat energy into the air. Thus, the correct option for this question is B.

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The two different X in Y individuals plays a role in increasing genetic biodiversity

Answers

The statement 'two different X in Y individuals plays a role in increasing genetic biodiversity' is TRUE. It is a system for se_xual reproduction.

What are X and Y chromosomes?

The X and Y chromosomes represent a manner by which organisms with se_xual reproduction can produce offspring.

In humans, the presence of two X chromosomes produces females, whereas the presence of one Y chromosome generates males.

Se_xual reproduction is fundamental for producing new gamete combinations in offspring.

Learn more about X chromosomes here:

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The table shows nine substances tested for biomolecules. Which substance contains protein and starch?

Answers

Answer:

soaked beans

Explanation:

iodine solution is used for testing for starch and it says its positive (+). Biuret solution tests for proteins and also says its positive. So basically you had to look at the columns and see which one had a + sign for both iodine and biuret. Both are present in soaked beans

How many types of hydro mimics can the oceanid summon in total?.

Answers

Mimics of water. The Oceanid summons a variety of aquatic creatures that must be fought and defeated in order to harm the boss. Oceanid has the ability to spawn eight different types of mimics.

In a multicellular organism, it is cell-to-cell communication that allows the trillions of cells to coordinate activities, including during development and regeneration. The three stages of cellular communication include: reception, transduction, and response. This study determined the key steps of a cell communication pathway involved in salamander limb regeneration. After amputation of a front salamander limb, the severed axons retract within the stump and grow back along the nerve sheath. To elucidate the molecular mechanisms, the researchers set up a series of controlled experiments to determine the events in salamander limb regeneration. Drag the general cell communication steps of the regeneration experiment into the correct order.

Answers

The process of amputation will interfere with the ability of cells to communicate with each other.

What is cell to cell communication?

The body of whole multicellular organisms have a lot of cells which are differentiated hence they perform diverse functions. The essence of cell differentiation is to allow different cells to perform different functions.

The question is incomplete hence we can not give here the process of cell regeneration. However, we know that the process of amputation will interfere with the ability of cells to communicate with each other.

Learn ore about cell communication: https://brainly.com/question/25969038

Please Help!!
Which subgroup of dinosaurs’ name means “shield bearer”?
A. sauropodomorphs
B. thyreophora
C. ceratopsians
D. ornithopods

Answers

Answer: B) thyreophora

_____ plants are able to reduce photorespiration by creating a _____ concentration of _____ in bundle sheath cells where the calvin cycle occurs.

Answers

Answer:

C4,high, CO2

Explanation:


The following sequence is labeled from 5’ to 3’ Write out the complementary strand (3' to 5'). Then, write out the mRNA strand that
transcribes the template strand,
5' ACGATGCGAGATAATGTG 3’

Answers

i can do the transcribing not the other part “UGCUACGCUCUAUUACAC”

How and why do organisms interact with one another?

Answers

Answer:

It's in their makeup to interact

Explanation

They need to interact to survive, to exist, to reproduce!

Answer:Organisms interact because of mating, competition for food resources, defense, and assertion of dominance.

Explanation:

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