BIOLOGY MIDDLE SCHOOL

People missing one or more clotting factors will have ----hemophilia

anemia

leukemia

Answers

Answer 1
Answer:

People missing one or more clotting factors will have hemophilia.

Reasoning: Hemophilia is a disorder in which blood doesn't clot as it should.

Anemia is a condition where the blood does not have enough healthy red blood cells.

Leukemia is a cancer of blood forming tissues at which it hindering the body's ability to fight infection.
Answer 2
Answer:

Answer-

hemophilia

Reason-

It is a blood clotting disorder

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Choose the best explanation of the difference between evolution and natural selection. A. Evolution is the idea that species change over time, and natural selection is a mechanism by which evolution takes place. B. Natural selection is the idea that species change over time, and evolution is the idea that our world changes over time. C. Natural selection is the idea that species change over time, and evolution is the idea that the species' food source also changes over time. D. Evolution is the idea that species change over time, and natural selection is the idea that nature changes over time.

Answers

Answer:

The correct answer will be option A.

Explanation:

Evolution is a process which changes the characteristics of a species over several generations which changes species over time.

Natural selection is one of the mechanism by which species become adapted to their environment  and evolve over time.

Natural selection takes place at the genetic level as the genetic mutations beneficial to survival are passed on to next generations through reproduction which result in generation of new organisms.This causes species to change and diverge over time.

For e.g- Before industrial revolution white peppered moth dominated compared to dark brown moths as the trees were white and the brown moths were not able to hide themselves from predators but after industrial revolution due to darkening of trees white moths were not able to hide while brown were able to and dominated.

thus option A is correct.

The correct answer is A

What determines which stage occurs after a supernova?

Answers

The mass of the star actually determines the stage of the star after supernova. If the mass of the star is small, then it would become a very small and dwarf, cold and dead body in space. The mass of the star has to be less than that of the sun. If the mass of the star is greater than sun, then it would become a black hole. The mass of the star has to be more than 1.4 times the mass of the sun to become a black hole.



What is a subspecies?

Answers

A subspecies is a taxonomy category that ranks below species, usually permanent geographical isolated race.   

How do nanoparticles of air pollution get into the brain?

Answers

Answer:

Nanoparticles have been shown to make their way through the nasal cavity, across the cribriform plate and into the olfactory bulb--part of the brain.

Explanation:

a sponge 1cm in diameter and 10 cm tall can move 22.5 L of water through its body each day. what volume of water will it pump through its body in i h? in 1 min?

Answers

The part of the question about the size of the sponge is just there to trick you; you don't need it.  All you need is the 22.5 L per day.

To find the amount of water it can pump in 1 hour, you divide the 22.5 by 24 because there are 24 hours in a day:

((22.5L)/(day))((day)/(24hours))=0.9375\ liters\ per\ hour

Now that we have hours, we can divide that by 60 to get the amount pumped per minute (because there are 60 minutes in an hour):

((0.9375L)/(hour))((hour)/(60minutes))=0.015625\ liters\ per\ minute

What do microbes eat

Answers

Bacteria break down (or decompose) dead organisms, animal waste, and plant litter to obtain nutrients. But microbes don't just eat nature's waste, they recycle it. The process of decomposition releases chemicals (such as carbon, nitrogen, and phosphorus) that can be used to build new plants and animals.

Answer:

Bacteria

Explanation:

Microbes are tiny living things—so tiny that you need a microscope to see them. Yet unseen microbes have a collective mass greater than all the animals on the planet. They're everywhere! You can find microbes (also called microorganisms) in soil, lakes, oceans, and air. You'll find them on your own body, both inside and out. And even though we can't see them, microbes have a huge impact on us and our environment. In fact, we couldn't live without them.Without microbes, the earth would be filled with corpses. Bacteria break down (or decompose) dead organisms, animal waste, and plant litter to obtain nutrients. But microbes don't just eat nature's waste, they recycle it. The process of decomposition releases chemicals (such as carbon, nitrogen, and phosphorus) that can be used to build new plants and animals. That is, chemicals that used to be a flower or a vegetable will eventually become part of another living thing. So the next time you see cut flowers decay or a garden vegetable rot, remember, you're really seeing microbes at work.
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