What is an ecosystem.

Answers

Answer 1

Answer:

An geographic area where living things, organisms and weather work together to form a community.

Explanation:

Answer 2
a biological community of interacting organisms and their physical environment.

Related Questions

What does insulator mean

Answers

As insulator is a material that doesn't transmit energy easily

white blood cells that engulf and destroy pathogens

Answers

There are 2 of them :-

1) Phagocytes

2) Macrophages.

These WBCs attach themselves to disease causing pathogens & then engulf them resulting in the destruction of the pathogens.

_________

Hope it helps!

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what is phototropic?​

Answers

phototropic

to grow directionally in response to a light source.

Identify the phases of mitosis during which sister chromatids are no longer attached by a centromere.(1 point)

prophase and telophase

anaphase and telophase

prophase and anaphase

metaphase and anaphase

Answers

Answer:

anaphase and telophase

Answer: Anaphase and telophase

Explanation:

The first two steps (prophase and metaphase) are the phases of detachment of the centromere.

Then the last 2 phases, are the ones with out the centromere.

!! Hope that helps !!

deoxygenated blood is transported to the pulmonary capillaries in the lungs by the pulmonary veins; oxygenated blood is transported away from the pulmonary capillaries by the pulmonary arteries is false

Answers

Answer:

no it is not false can be transported

why is it important to study the ecology of an area?

Answers

Ecology and enriches

Explanation:

Why is it ecology important because ecology enriches our world and is cruail for a human well being and prosperity maybe..?

Without land regulations to protect rainforests, and continues to be destroyed using slash and burn methods Which environmental impact of rainforest deforestation makes rainforest species less resilient to
change?
Increased fire and drought
Increased pollution
Displaced inbes
Habitat fragmentation

Answers

Answer:

Increased pollution is your answer!

Explanation:

Increased pollution is your answer because:

1. ⇒ Burning of mostly anything creats, and all the materials in the forest are one of those materials that will create smoke. And smoke is made out of carbon dioxide, and other poisonous gases that are very bad for our atmosphere.

2. ⇒ The damage from the fire will also cause a lot of damage to the trees and plants. That is very bad because trees are very important for our environment, in their leaves, they have a chemical called chlorophyll, this chlorophyll absorbs sunlight and turns it into oxygen. Not only sunlight is needed, there is also, water, nutrients needed.

I hope I could help you today! Thanks!

Have a great day studying!

which part of the crossbow is designed to prevent the arrow from releasing accidentally?

Answers

Answer:

Trigger mechanisms utilize two basic designs. It is either located directly underneath the latch that holds the string in a cocked position or the latch mounted behind the trigger. A safety prevents accidental release of a bolt and may engage manually or automatically once a crossbow is cocked.

The primary function of the stomach is which of the following?

Answers

A) to serve as a holding tank

To serve a holding tank is a primary function of the stomach.

What is Stomach?

The J-shaped organ that digests food is the stomach. It generates acids and enzymes, which are molecules that cause chemical reactions (digestive juices).

Food is broken down by this mixture of enzymes and digestive juices so that it may move to our small intestine.

A portion of the gastrointestinal (GI) tract includes your stomach. Your mouth is the beginning of the GI tract, which is a long tube. The stool (poop) exits your body through your anus. A crucial component of your digestive system is the GI tract.

Therefore, To serve a holding tank is a primary function of the stomach.

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what molecule makes instructions for proteins and is located inside a eukaryotic nucleus

Answers

Answer:

DNA stores that info

Explanation:

In eukaryotic cells (ex. plants and animals) the DNA is found in the nucleus of the cell. Structures called ribosomes build proteins (this process is called translation).

The molecule that is responsible for carrying the instructions for the formation of protein is mRNA, which is formed inside the nucleus.

The mRNA is known as the messenger RNA because it acts as a messenger, to carry the instructions required to create a polypeptide chain.

The mRNA is formed during the process known as transcription. The mRNA is formed by the molecule known as RNA polymerase.

During the process of transcription, the genetic information gets copied as a strand of nucleotides containing adenine, uracil, guanine, and cytosine, known as mRNA, which is formed inside the nucleus.

The molecule which act as a carrier of the genetic information for the formation of proteins is known as mRNA.

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Make a list of 5 kinds of variation that you can see between the dogs

Answers

fox wolf bear dog panda

fats store energy for
A. Long term.
B. Immediate use
C. muscle tissues only.

Answers

C muscle tissues only

What type of cell is shown above?
A.
prokaryotic
B.
plant
C.
eukaryotic
D.
animal

Answers

Answer:

A

Explanation:

The awnser is A ___________

what are the effects of pollution on the atmosphere?

Answers

Answer:     This can kill crops or reduce their yield. It can kill young trees and other plants. Sulfur dioxide and nitrogen oxide particles in the air, can create acid rain when they mix with water and oxygen in the atmosphere.

Explanation:

Prolactin (PRL) is a pituitary hormone that regulates milk production in lactating mammals.

a. True
b. False

Answers

Answer:

true

Explanation:

10. A battery-operated alarm
clock waking you up in the
morning. What type of energy is this?

Answers

Answer:

Chemical Energy!

Explanation:

A Battery is made of chemical energy!

I am thinking of an animal that kind of looks like a raccoon, and starts with an A. With just that information: what is the common name for that organisim.

Answers

Armadillo is the first thing that comes to mind

Answer:

Armadillo

Explanation:

Which of the following is NOT part of the non-specific immune response?
A. Inflammation
B. Phagocytosis
C. Antibodies
D. Interferons

Answers

D.Interferons. .......

D. Interferons are not a part of the non-specific immune response.

What is the function of interferons?

Interferons were first described as an antiviral thing that interferes with viral replication in mammalian cells (10). they're secreted from inflamed cells and spark off an innate immune reaction that promotes now not best cytokine production but additionally herbal killer mobile features and antigen presentation.

Interferons (IFNs) — the body's first line of antiviral defense — are cytokines that are secreted by host cells in reaction to virus infection. by using inducing the expression of hundreds of IFN-inspired genes, numerous of that have antiviral capabilities, IFNs block virus replication at many ranges.

Interferons are a circle of relatives of clearly-happening proteins which are made and secreted with the aid of cells of the immune gadget (an example, white blood cells, natural killer cells, fibroblasts, and epithelial cells).

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Blood vessel diameter fluctuates between being constricted and being dilated. This is the primary contributor to blood pressure. In order for blood vessels (arterioles) to maintain a steady pressure, there must be a prolonged presence of what ion in the smooth muscle cell's cytosol

Answers

In order for blood vessels to maintain a steady pressure, there must be a prolonged presence of CALCIUM ions in the smooth muscle cell's cytosol. This ion initiates smooth muscle contraction.

Arterioles are blood vessels that have muscular walls consisting of one or two layers of smooth muscle cells.

Calcium (Ca2+) ions start the contraction of the smooth muscle cells by binding to calmodulin protein and thereby activating myosin.

In consequence, Ca2+ ions act as a secondary messenger that activates calmodulin, stimulating the phosphorylation of the myosin light chain and thus triggering muscle contraction.

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which of the following is an example

Answers

Answer:

it is b because rest are biotic and also cause it is the only biotic thing available

Explanation:

I know it is right

B. Cool crisp temperature

Istanding Laws, Theories, and Hypotheses
Question 5 of 10
What does it mean that evolution by natural selection is a theory?
A. Evolution by natural selection is an educated guess about how
organisms have changed over time.
B. The results of many different studies suggest natural selection as
a common explanation of how organisms have changed over time.
C. Darwin presented this new idea, which other scientists found
useful.
D. Evolution by natural selection explains how and why organisms
have changed over time.
SUBMIT

Answers

Answer:

c

Explanation:

Explanation:

In the theory of natural selection, organisms produce more offspring than are able to survive in their environment. ... This means that if an environment changes, the traits that enhance survival in that environment will also gradually change, or evolve

Proteins contain ___ different
amino acids, whereas DNA
and RNA are composed
of different ___ nucleotides.

Answers

protein contain 23 different amino acids whereas DNA and Rna are composed of different 4 nucleotides

What is one reason that the surface water at the equator is less dense than
the surface water at the poles?

Answers

Answer: At low latitudes, near the equator, direct overhead sunlight received all year warms surface waters.

Cold water is also more dense, and as a result heavier, than warm water. Colder water sinks below the warm water at the surface, which contributes to the coldness of the deep ocean.

Explanation:

Answer:

The density of ocean water is so varied, that while there may be a generally considered variation due to temperature, taking random samples in a wide variety of places, thus you can distinguish no real pattern.

Explanation:

Help with questions in image

Answers

Answer:

A) bird

B) snake

C) grass

D) cricket

E) should be snake

im sorry i dont know what F is

Explanation:

URGENT MY PROJECT IS DUE TOMORROW

IS CELL REPLICATION BASICALLY MITOSIS?

Answers

Answer:

no the cell are not replication mitosis as 800000 cell die and reproduce each second

Which of the following are molecules? (Select all that apply.)
K
MgCl2
H2
Mg
Grade -5-

Answers

Answer:

MgCI2

H2

Explanation:

any combination of elements is a molecule

Biology cell division
What are the answers to this chart

Answers

check both of these it may help

The cell spends most of the time in the interphase, which is in the G1, S, and G2 phases, and approximately 22 hours out of 24 hours, with the rest being 1–2 hours, are spent in the division phase.

What is the time spent in the cell cycle?

The cell enters the cell cycle, and the first stage is the G1 phase, where the cell grows and spends a lot of time nearly 11 hours and then the cell enters the S phase. In the S phase, the DNA replicates and spends nearly 7 hours, and then in the G2 phase, 3 to 4 hours are spent by the cell, with the remaining 1 to 2 hours spent in the M phase, also called the mitosis or division phase.

Hence, cells spend most of the time in the interphase, which is in the G1, S, and G2 phases, and approximately 22 hours out of 24 hours, with the rest being 1–2 hours, are spent in the division phase.

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what is the function of the organelle identified as #6 in the picture it is mostly brown folded over and is in the lower right part of the cell

Answers

Answer:the presence of a true nucleus

Explanation:

What person is in this image?

Answers

Answer:

bts petson

Explanation:

look

Describe the role that rivers and streams play in the water cycle.​

Answers

Rivers and streams carry water, and pick up runoff water after precipitation. Rivers and streams are a source of water to be evaporated into clouds.
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