BIOLOGY MIDDLE SCHOOL

How do nitrogen-fixing bacteria help cycle nitrogen through ecosystems?A. They release nitrogen into the atmosphere when they replicate their DNA.

B. They capture nitrogen from the atmosphere and convert it into forms that plants can use, like ammonia.

C. They convert sunlight into chemical energy which is then stored in the nitrogen.

D. They convert ammonia from animal feces and urine into forms that plants can use.

Answers

Answer 1
Answer: B that’s the nitrogen fixing bacteria’s job think of it as they “fix” the nitrogen so plants can use it

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It is warmer at the equator than at 80° N because _____.the equator is closer to the sun the equator receives more sunlight the sun's energy is spread out over a smaller area at the equator the sun's energy is spread out over a larger area at the equator --- What causes seasons? the earth's rotation the earth's tilt the curved surface of the earth the earth's orbit around the sun --- Warm air _____. cools as it rises, then sinks back down keeps rising until it leaves the troposphere cools as it sinks, then rises into the atmosphere does not move -- Wind is caused by ___. the earth's tilt the Coriolis effect temperature differences humidity -- Choose all the answers that apply. Clouds: form from condensation reflect sunlight back into space trap sunlight in the atmosphere cause precipitation are caused by the Coriolis effect --- Which of the following statements is true? Low pressure is usually means nice weather. Air pressure is the same over the entire earth. Worldwide winds are caused by rising air at the poles and sinking air at the equator. Coastal breezes occur because water heats and cools more slowly than land. PLEASE AT LEAST TRY PLEASE?
Which statement forms part of cell theory?A. Cell organelles are capable of reproducing themselves.B. Cells differ in shape, but they have identical components.C. All cells begin life as prokaryotic cells.D. All living things are made up of cells.
Where are animal cells found
In the living world, there is a great deal of genetic variation. The genetic information of dogs differs from the genetic information of cats. The genetic information of plants differs from the genetic information of bacteria. Your genetic information differs from your father's genetic information, and so on. Which of the following is least likely to be a source of genetic variation among living organisms? A. mutations B. meiosis C. sexual reproduction D. asexual reproduction

Developing hypothesis Some desert animals live for days without drinking water. How do you think these animals survive?

Answers

They can conserve (store) water in their bodies for longer than other types of animals. They keep the water that they get in their body and need less water than other animals.

How can the environment be organized into levels from simple to complex?

Answers

Answer:

The organization of the environment from simple to complex is:

  • Individual
  • Population
  • Community
  • Ecosystem
  • Biosphere

Population refers to the total number of living organism present in a particular area. For example, the human population of any city.

Community refers to the group of populations of two or more species living in a particular area.

Ecosystem refers to the biological community consists of biotic, abiotic, and interaction of biotic and abiotic components.

The biosphere is the region occupied by living organisms. It includes atmosphere, hydrosphere, and lithosphere.
The levels of an environment to be organized are populations,species,community,and the ecosystem

Which of the following serve as enzymes?

Answers

Answer;

-Proteins

Explanation;

-Enzymes are biological catalysts that are used to increase the rate of different biological reactions. They are biological proteins that facilitate biochemical reactions.

-Enzymes are proteins that are folded into complex shapes that allow smaller molecules to fit into them. Proteins are biological macromolecules that are diverse in shape size and function. However, other enzymes and very few may be catalytic RNA molecules.
I believe the answer would be a nucleic acid

The ultimate source of heat in the process of global warming is ?

Answers

The ultimate source of heat in the process of global warming is the Sun, but the main reason why the Earth is heating so much because of the sun are the greenhouse gasses that trap the heat. 

Answer: greenhouse gases

Explanation:

What are two types of evidence that suggest that evolution has occurred?

Answers

DNA and fossils.Similarities among living organisms is evidence that organisms are related, descended from a few common ancestors, and change to adapt to their environments, organisms are similar to each other, but not exactly the same. Similar organisms have differences that help them adapt to their environments. As organisms adapt and evolve, not everything about them change. 

WILL MARK BRAINLIEST!!These factors are directly responsible for the survival of an organism. They include water, shelter, space, and food, and can all run out if being used by too many individuals.

A.biodiversity

B.limiting factors

C.ecosystem

D.mutualism

Answers

The answer is B) Limiting factors.

Hope this Helps!!
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