Can someone help me i'm stuck on this question.play an important role in an ecosystem, breaking down dead organisms and recycling the nutrients.

Decomposers

Producers

Heterotrophs

Answers

Answer 1

Answer: Decomposers get nutrients and energy by breaking down dead organisms and animal wastes. Through this process, decomposers releasenutrients, such as carbon and nitrogen, back into the environment. These nutrientsare recycled back into the ecosystem so that the producers can use them.

Answer 2

Answer: Decomposers play an important role in an ecosystem, breaking down dead organisms and recycling the nutrients.

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Scientists often test their hypotheses with controlled experiments. which of these is a rule for conducting a controlled experiment? a. change at least two variables at a time
b. keep all variables constant
c. change as many variables as possible
d. change only one variable at a time

Answers

Changing only one variable at a time is a rule for conducting a controlled

experiment.

Controlled experiment involves the use of dependent and independent

variables . Changes in the independent variable brings about a

corresponding change in the dependent variable which is then recorded.

It is however important to note that changing more than only onevariable at

a time won't accurately determine if the changes in the results were as a

result of one cause. This is why only one variable has to be changed at a

time.

Read more about Hypotheses here brainly.com/question/12416923

The number of currently described species on the planet is about ________.17,000
150,000
1.5 million
10 million

Answers

The number of currently described species on the planet is about: C. 1.5 million.

What is a species?

A species can be defined as a biological classification of related organisms that have similar characteristics and they are capable of breeding with one another in a cycle.

Some examples of species of various organisms include the following:

Giraffa camelopardalis

Humans

Moose (Alces laces)

Black bears (Ursus americans)

Jack pines (Pinus banksiana)

In conclusion, there are currently about 1.5 million species on planet Earth.

Read more on species here: brainly.com/question/15971107

Answer:

The correct answer will be option- 1.5 million.

Explanation:

Biodiversity refers to the variety of species and ecosystem present on the earth in which they are part of it. The biodiversity comprises of three components: species diversity, ecosystem and genetic diversity.

The number of species present on this planet is found to be around 1.5 million in which 17,000 new species are being added to the existing number.

Thus, option- 1.5 million is the correct answer.

what is the autonomic nervous system about? explain full details, like a reflection on it. I will give brainliest if answered correctly

Answers

the autonomic nervous system is responsible for regulating the activity of glands, smooth muscle, and cardiac muscle. its under involuntary control, meaning it works without us telling it to do so. it's divided into two divisions: sympathetic and parasympathetic. in sympathetic division, here, the preganglionic fiber is short and the preganglionic fiber is long. sympathetic division is very important during emergancy situationd and is commonly associated with "fight or flight" response. it accelerates the heartbeat, dilates the bronchi, and inhibits the digestive tract. the parasympathetic includes cranial nerves and fibers. it is often referred to as the "rest and digest division". here, the preganglionic fiber is long and the preganglionic fiber is short. it promotes responses associated with a relaxed state, such as pupil contraction, digestion of food, and a reduced heart rate.

hope this helps!!

Plzzzzzzzzzz helpPart I: How Much Land
How do you feel about the results of this activity? Were you surprised? Why or why not?

Answers

The results of an activity or experiment can either prove or disprove the initial hypothesis. Also, if they disprove the initial idea or hypothesis they are surprising.

In any activity or experiment, the results are always related to the first idea or hypothesis. In this way, the results can:

Match or prove the initial idea
Contradict or disprove the initial idea

For example, if the initial idea is "Plants require 10 ml of water to survive" by the end of the experiment you will understant if this is true or if it is false.

Moreover, if the results do not match your initial idea, then they can be classified as revealing and surprising.

Note: This question is incomplete because the activity is not included; however, I answered this question based on general knowledge.

Learn more in: brainly.com/question/10349874

Answer:

What activity

please update the ?

What constitutes the majority of the debris found in the “garbage patch” located in the North Pacific Ocean?

Answers

Answer: plastic is the main constituent in the garbage patch found in North Pacific Ocean. It was estimated to be approximately 80 thousand tonnes or about 1.8 trillion pieces of plastic in the patch. A total of 1.8 trillion plastic pieces were estimated to be floating in the patch.

Plastic is most of the debris.

Free-floating fishing nets make up another 10 percent of all marine litter, or about 705,000 tons, according to U.N. estimates.

Question 71 pts
Students have been assigned to write reports on cell organelles. Eric's report is about the organelle that supports and gives structure to plant cells. Which organelle is Eric writing about?
O cell wall
cell membrane
cytoplasm
O nucleus