Which two are necessary for a functional ecosystem?

A. Herbivores
B. Carnivores
C. Producers
D. Decomposers

Answers

Answer 1

Answer:C and D

Explanation:

Answer 2

Answer: C & D

Explanation:

Producers start the cycle off by creating food from the energy from the sun. Then decomposers are the last on the cycle. They recycle all the leftover nutrients.


Related Questions

pyruvic acid enters the ____ and is first converted into _____.

a. krebs cycle; citric acid
b. krebs cycle; acetyl CoA
c. mitochondria; citric acid
d. mitochondria; acetyl CoA

Answers

Answer :

D. Mitochondria ; acetyl CoA

pyruvic acid enters the mitochondria and is first converted into acetyl CoA

main parts of the male reproductive organ and their functions.....​

Answers

Answer:

penis

Explanation:

sex

Stomach acid has a pH of about _____. a. 4 c. 6 b. 2 d. 10

Answers

The answer is B. 2. hope this helps

28. The phases for Meiosis II are:

Answers

In meiosis II, the phases are, again, analogous to mitosis: prophase II, metaphase II, anaphase II, and telophase II

How many moles are in 15 grams of Lithium?
2.16 grams
104.1 moles
2.16 moles
104.1 grams

Answers

There are 2.16 moles of lithium in 15 grams. Look at the periodic table to find the molar mass.

Kevin is constructing an explanation of the importance of freshwater ecosystems. Which of these statements would be MOST USEFUL to include in the explanation?

Answers

You seem to have forgotten to include the statements we are supposed to select from. However I still wish you good luck !

PLEASE HELPPPP ME
Which would most likely increase the carrying capacity for humans in a
certain region?
O A. Increased fertility rate
B. Less available fresh water
C. Less space to build houses
D. Better soil for growing food
Someone please help me I'm stuck on this

Answers

Answer: D. better soil for growing food

Explanation:

Is a crayfish living or nonliving and what are two reasons

Answers

Answer: Crayfish are freshwater crustaceans resembling small lobsters (to which they are related). ... Crayfish feed on animals and plants, either living or decomposing, and detritus. So yes they are alive

Explanation:

No need to explain sunce I explained above :)

Answer:

crayfish are living.

Explanation:

1. They are like small lobsters and lobsters are living.                                              2.And they can animals or whatever they find thats good to them i guess.

HELP FAST HELP ASAP
Which is a renewable resource?
which one of these is it
petroleum
wood
iron
coal
will get awarded with brainliest

Answers

Answer:

I think petroleum

but I am not sure

Answer:

Wood

Explanation:

Wood comes from trees. Because trees can be grown, they are renewable.

In the equation shown, what are the reactants? 2H2-02 --> H2O
Hydrogen atoms
Hydrogen and oxygen molecules
Water molecules
Ice crystals

Answers

It would be hydrogen and oxygen molecules. H: hydrogen O: oxygen, the H2O is the product.

Answer:

Hydrogen and oxygen molecules

Explanation:

BRAINLYIST PLSSSS HURRY

Answers

Answer:

A

Explanation:

only one type of atom= (PURE SUBSTANCE not mixture)

is atom chemically bonded to another atom? (NO- element, not compound)

Answer:. Maybe A. Im not sure.

PLEASE HELP ASAP WILL GIVE BRAINLIEST
Why is the dysphotic zone around coral reefs shallower than the dysphotic zone in the open ocean?
There is more oxygen in the open ocean.
The sun is brighter over the open ocean.
There is more nitrogen by the coral reefs.
There is more plankton by coral reefs.

Answers

Answer: There is more plankton by coral reefs.

Explanation: Plankton tend to hang around surface waters which coral reefs also grow in. And most of that Plankton are plants that need more sunlight. So the sun would be brighter in shallower waters rather than open ocean.

why is the cell membrane often referred to as a "phospholipid bilayer"​

Answers

Answer:

Porque esta formada por dos capas de moléculas de lípidos

Explanation:

You get a cut on your finger and some bacteria enter. Your immune system cells kill off the invaders by ingesting them. This is an example of:

Answers

It’s an example of Phagocytosis.

Predicting future events in a person's life based on the position of planets is an example of

physics
geology
astronomy
pseudoscience

Answers

Answer:

pseudoscience

Explanation:

Answer:

Give him brainiest the guy is right

Explanation:

A strand of DNA contains the bases adenine, cytosine, cytosine, and guanine, in that order. Which would be the order of the bases on the opposite strand of DNA?
cytosine, adenine, adenine, and thymine
cytosine, thymine, thymine, and adenine
thymine, guanine, guanine, and cytosine
thymine, adenine, adenine, and cytosine

Answers

Answer:

thymine, guanine, guanine, and cytosine

Explanation:

The order of the bases on the opposite strand of DNA should be Thymine, Guanine, Guanine and Cytosine.

DNA and complementary base pairing

The deoxyribonucleic acid (DNA) is a double helix composed of two long chains of sequential nucleotides.

In DNA there are four classes of nucleotides, each containing one different nitrogenous base (i.e., Adenine, Guanine, Cytosine, Thymine).

According to the base pair rules of complementarity, Adenine always pairs with Thymine, whereas Guanine always pairs with Cytosine.

In conclusion, the order of the bases on the opposite strand of DNA should be Thymine, Guanine, Guanine and Cytosine.

Learn more about complementary bases here:

https://brainly.com/question/19349723

the rate of photosynthesis can be affected by several factors, such as light intensity, temperature ,water, and carbon dioxide. describe how the lack of water in an environment can affect the amount of carbon dioxide absorbed by the plant

Answers

Answer:

Plants need water, so that their guard cells can fill up and become turgid which would allow the stomata to open and gas to exchange. If there is not much water, not much gas exchange can occur hence not much Carbon dioxide can be taken in.

Explanation:

Plants require water for the process of photosynthesis. Plants need water so that their guard cells can fill up and become turgid. This allows the exchange of gases in the stomata.

How does water affect photosynthesis?

During photosynthesis, the plants take in carbon dioxide and water molecules from the air and soil particles. Within the plant cell, this water is oxidized to generate oxygen gas, meaning that it loses electrons, while the carbon dioxide gas is reduced in the chloroplast of the plant cell by gain of electrons to produce carbohydrates. This process transforms the water into oxygen gas and the carbon dioxide gas into glucose molecules (carbohydrates).

Plants need water, so that the guard cells in the plant can fill up and become turgid which would allow the stomata to open and exchange of gases. If there is not much water present in the guard cells, not much gas exchange can occur hence not much of the carbon dioxide can be taken in from the atmosphere.

Learn more about Photosynthesis here:

https://brainly.com/question/29764662


#SPJ2

You are walking in a clear-cut section of forest a few days after a heavy rainstorm A nearby stream is very muddy and has
many dead fish. What might have happened?

Answers

Answer:

in my oppinion its call a  

source of pergisol

Explanation:

What if climate change is self-sustaining? This is already the case, for example, with melting arctic sea ice. This reflects solar radiation, which allows the ocean, located under the ice, to stay cold. But when sea ice melts, the ocean absorbs heat from the sun, which melts more ice. In general, it is difficult to predict the tipping point where such a feedback loop will engage.

Spread over more than 23,000,000 km2, at the top of the globe, permafrost (permanently frozen ground) could enter such a vicious circle. Normally, up to 4 m of soil and plant debris cover the permafrost. This top layer (called the active layer) normally melts every summer, and freezes in winter. It thus protects the permafrost from the rise in heat outside. But in the spring of 2018, a team working at a research station in Tchersky, Russia, discovered that near-surface land had not frozen over at all during the long, dark polar night.

confusin help pls ??????????

Answers

Answer:

yes I ldk what u want with no pictures

Imagine a digestive system where food entered the small intertwine directly without first going through the oral cavity and stomach. What would he the disadvantages of this type of digestive system?

Answers

i'd say the body would have a much harder time digesting. since it never went through the mouth or the stomach, it hasn't been broken down, your intestines will have a much harder time pulling nutrients from the food. i could be wrong, but i hope this helped in some way!

The ribosome-covered structure found in the cytoplasm of a cell is called the
А.
Golgi apparatus
B
rough endoplasmic reticulum
lysosome
smooth endoplasmic reticulum

Answers

Answer: rough endoplasmic reticulum

Explanation:

What is difference between acid and bases?

Definition. A substance, mostly liquid that donates a proton or accepts an electron pair in reactions. An acid increases the concentration of H+ ions. A base is a substance that releases hydroxide (OH-) ions in aqueous solution, donates electrons and accepts protons.
(just if someone needs this i guess)

Answers

Answer:

Acids are sour, gives burning sensation, generally sticky, reacts with metals to produce hydrogen gas. Although bases are opposite as they are bitter, generally odorless (except ammonia), they are slippery; bases react with fats and oils. In phenolphthalein, indicator acids remain colorless, and base gives pink color.

Explanation:

An acid is a substance that releases hydrogen ions into an aqueous solution. A base is a substance that releases hydroxide ions.

Acids are sour, gives burning sensation, generally sticky, reacts with metals to produce hydrogen gas. Although bases are opposite as they are bitter, generally odorless (except ammonia), they are slippery; bases react with fats and oils. In phenolphthalein, indicator acids remain colorless, and base gives pink color.

Please help! Super easy! (Photo)

Answers

Answer:

I don't know you really didn't give us a question so sorry

Answer:

I don't really get this., is there supposed to be a photo?

Which of the following statements tells how facilitated diffusion differs from
simple diffusion?
A. Particles move through cell membranes without the use of energy by cells.
B. Particles tend to move from high concentration to lower concentration.
C. Particles move within channel proteins that pass through cell membranes.
D. Particles tend to move more slowly than they would be expected to move.

Answers

Answer:

I think its C but I am not sure, I hope this helps :)

Explanation:

The statement 'particles move within channel proteins that pass through cell membranes' indicates the reason for which facilitated diffusion differs from simple diffusion (Option C).

Diffusion (both facilitated diffusion and simple diffusion) refers to the movement of substances across biological membranes from an area of high concentration to an area of low concentration.

Facilitated diffusion and simple diffusion are two types of passive transport that do not require energy to move molecules/ions in favor of a concentration gradient.

In facilitated diffusion, specific membrane proteins known as carriers or channels help to the movement of substances in favor of a concentration gradient.

Conversely, in simple diffusion, small molecules (e.g. CO2 and oxygen) freely diffuse across a selectively permeable membrane in favor of a concentration gradient.

In conclusion, the statement 'particles move within channel proteins that pass through cell membranes' indicates the reason for which facilitated diffusion differs from simple diffusion (Option C).

Learn more in:

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How do animals transport materials?

Answers

Answer:

Thought the process of discussion and ossmossis as due to gaseous exchange

Explanation:

With the aid of thin layers and large surface area animal are able to transport material thought the blood due to diffusion and osmosis In order to transport different materials from a every of high concentration to a low concentration until material is equally distributed throughout the body

What organisms carry out metabolism?

Answers

Answer:

Eukaryotes

Explanation:

Are organisms wise cells have a nucleus and membrane bound organelles. Prokaryotes are organisms whose cells lack a nucleus. Eukaryotes carry out cellular respiration with the help of mitochondria. Mitochondria are organelles that produce the enzymes necessary to catalyze the series of reactions that produce ATP.

sex linked traits are typically carried on the x chromosome. to denote the geontypes, a superscript is used. a female carrier of hemophillia will have the genotype xH Xh . using the letters X AND Y , what is the genotype for each of the following people?

Answers

Answer: XHY, XHXh

Explanation: I don't know if this is correct exactly but i just looked at my notes from my bio class because we did this previously so i think it's right

Evidence that a meteor passed through to the surface of a moon or planet would be
A) a fiery streak in the sky
B.) impact crater
C.) meteorite pieces found on planet's surface
D.) both b and c​

Answers

Answer:

D

Explanation:

Cellular respiration and photosynthesis form the basis of the __________.

Group of answer choices

A) water cycle

B) biomass

C) nitrogen cycle

D) carbon cycle

Answers

The answer is D. Carbon cycle

Some plant roots grow with mycorrhizal fungi. The fungi absorb water and
minerals and pass them on to the plant and receive carbohydrates from the
plant. This is an example of:
- mutualism
- competition
- predation
- parasitism

Answers

Answer:

-mutualism

Explanation:

Hope it helps hehe

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