what is a ecosystem? write 2 to 5 sentences to explain it​

Answers

Answer 1

Ecosystem is that it is a community or group of living organisms that live in and interact with each other in a specific environment.

For instance, tropical forests are ecosystems made up of living beings such as trees, plants, animals, insects and micro-organisms that are in constant interaction between themselves and that are affected by other physical (sun, temperature) or chemical (oxygen or nutrients) components.


An ecosystem consists of a community of organisms together with their physical environment.
Ecosystems can be of different sizes and can be marine, aquatic, or terrestrial. Broad categories of terrestrial ecosystems are called biomes.
In ecosystems, both matter and energy are conserved. Energy flows through the system—usually from light to heat—while matter is recycled.
Ecosystems with higher biodiversity tend to be more stable with greater resistance and resilience in the face of disturbances, or disruptive events.

Related Questions

True or False

When two male lions fight over a dead zebra, it is called interspecific competition

True or False

Decomposers are fungi that break down decaying plants and animals

True or False

Bears are known to eat berries as well as fish and meat. Bears are omnivores.

Answers

When two male lions fight over a dead zebra, it is called interspecific competition

False

Decomposers are fungi that break down decaying plants and animals

True

Bears are known to eat berries as well as fish and meat. Bears are omnivores.

True

grade 5 science MYA answers 1-10 =

Mr. Powell is demonstrating the water cycle. He shapes mountains out of clay on one end of a glass aquarium to represent land. He then pours some water into the aquarium and places a glass lid on it. Next, he turns on a lamp above the aquarium and, finally, he places a container filled with ice on the glass lid. In this model, which choice correctly identifies evidence of condensation?


a - water droplets falling on the clay

b - less water in the bottom of the aquarium

c - water running from the clay into the water

d - water forming on the lid under the container

PLEASE HELP!!!!!! this is due in 5 mins and this is my only question left o_o

Answers

Answer: d - water forming on the lid under the container

Explanation:

Condensation is the process that describes the change of state of water from gas to liquid. It happens in the water cycle when water vapor gets to the atmosphere and due to the lower temperatures turns into liquid water that then forms clouds.

In the demonstration, the container is meant to be the clouds so when water forms under the container, that is condensation happening because the water vapor has not turned back to liquid after leaving the aquarium water as water vapor.

describe temperature in your own words

Answers

Answer:

it is a degree of intensity of heat in a subject or thing  expressed usually by touch

 

Explanation:

Why is the surface of the organelle so twisty?

Answers

Answer: the winding structure of the ER results in a large membrane surface area that supports its function

Explanation:

Giving everything!!!!!!!!! Plzzzz help!!!!!!!!!!! ASAP!!
The diagram below shows parts of the human brain.
Which part of the brain is labeled 4 in the diagram?


A. medulla oblongata

B. occipital lobe

C. parietal lobe

D. brain stem

Answers

I’m pretty sure it’s B.

In a unique species of plants, flowers may be yellow, blue, red, or mauve. All colors may be true-breeding. If plants with blue flowers are crossed to red-flowered plants, all F1 plants have yellow flowers. When these produced an F2 generation, the following ratio was observed: 9/16 yellow, 3/16 blue, 3/16 red, and 1/16 mauve. Determine the F1 results of a cross between true-breeding red and true-breeding mauve flowered plants.

Answers

Answer:

F1) 100% bbRr, red flowered plants.

Explanation:

Available data:

flowers may be yellow, blue, red, or mauvecolors may be true-breedingthe cross of blue-flowered plants with red-flowered plants, produce plants that have yellow flowersF2 generation: 9/16 yellow, 3/16 blue, 3/16 red, and 1/16 mauve.

Knowing that the phenotypic ratio is 9:3:3:1, we can assume that there are two genes involved in the flower color expression. We can name these genes B and R with a dominant and a recessive allele each (B, b and R, r respectively).

According to the first cross, we might establish the following genotypes:

1st Cross: blue-flowered plant     x     red-flowered plant

Parentals)         BBrr                     x                bbRR

Gametes)     Br, Br, Br, Br                         bR, bR, bR, bR

F1) 100% BbRr, yellow plants

Parentals)   BbRr     x     BbRr

Gametes) BR, Br, bR, br

                BR, Br, bR, br

Punnett square)     BR       Br        bR          br

                  BR     BBRR    BBRr   BbRR     BbRr

                  Br      BBRr     BBrr     BbRr      Bbrr

                  bR     BbRR    BbRr    bbRR      bbRr                    

                  br      BbRr     Bbrr      bbRr      bbrr

F2)  9/16 yellow ---> 1/16 BBRR + 2/16 BBRr + 4/16 BbRr + 2/16 BbRR  

       3/16 blue ------> 1/16 BBrr + 2/16 Bbrr

       3/16 red---------> 1/16 bbRR + 2/16 bbRr

       1/16 mauve ----> 1/16 bbrr    

So,

Yellow-flowered plants: BBRR, BBRr, BbRR, BbRrRed-flowered plants: bbRR, bbRrBlue-flowered plants: BBrr, BbrrMauve-flowered plants: bbrr

According to these genotypes, the second cross would be like following,

2nd Cross: true-breeding red-flowered plants with true-breeding mauve flowered plants.                

Parentals)          bbRR       x        bbrr

Phenotype)       Red                   Mauve

Gametes)   bR, bR, bR, bR      br, br, br, br

Punnett square)    bR       bR        bR        bR                    

                    br    bbRr     bbRr    bbRr     bbRr

                    br    bbRr     bbRr    bbRr     bbRr

                    br    bbRr     bbRr    bbRr     bbRr

                    br    bbRr     bbRr    bbRr     bbRr

F1) 100% bbRr, red flowered plants.

Which statement is FALSE about Redi & Pasteur’s experiments?

Question 1 options:

Redi’s independent variable was jar coverings.

Pasteur’s independent variable was boiled broth.

Pasteur’s dependent variable was the growth of microbes (bacteria).

Both experiments were conducted gather evidence to disprove spontaneous generation.

Answers

Answer: i think c

Explanation:.

When constructing an energy pyramid of the swamp ecosystem, which of these would be placed at the top of the pyramid?​

Answers

Answer:

American alligator

Explanation:

How are
lactic acid fermentation and
alcoholic fermentation similar?
How are they different?

Answers

Answer:

Both are anaerobic processes that break down glucose to make ATP and recycle NAD+ to glycolysis. Lactic acid fermentation produces lactic acid, alcoholic fermentation produces alcohol and carbon dioxide.

Explanation:

When reading “This tree starts with our ancient ancestors and leads to many species of hominids that are now extinct, with humans at the tip of the only surviving branch,” what did that make you think about humans? Do you think this indicates that humans are the pinnacle of evolution? Are they? Explain.

Answers

Answer:

Yes, humans are the pinnacle of evolution.

Explanation:

Adaptability to the change environment by the human is the only reason for the survival of human beings as compared to other hominids. The human survival also occurs due to evolution that changes the physical structure of humans and they are able to survive in that environment condition in which no other hominids survives so we can say that humans are the pinnacle of evolution.

is 11/12 greater then 2/3 explain

Answers

Answer:

11/12 is greater than 2/3!

Yes 11/12 is greater than 2/3 because if you turn it to decimal it would be 0.91 and 2/3 would be 0.6.

0.91 is greater than 0.6 because of the number at the back of the decimal point so therefore 11/12 is greater than 2/3

What are the differences between active transport and passive transport

Answers

Passive transport doesn't require energy , However Active transport does require energy. That’s the difference.


Where do lizards get their tail length

Answers

Explanation: long-tailed helps a lizard with balance. It provides a fat reserve for the lizard in times of starvation. A lizard uses its tail to communicate its feelings and its social status. Lizards detach their tails as a defense mechanism.

What is a characteristic that would NOT be determined by an organism’s chromosomes?

Answers

Answer:

acquired characteristics.

those characteristics which are not determind by organism's chromosome are known as acquired characteristics.

these are environment influence or developed characteristics.

Explanation:

examples are lengthening of a body part which is frequently used. or the parts reduction which are not in use.

(HELP ASAP I'LL GIVE YOU BRAINLIEST)
To be a strategic thinker, one must anticipate changes and forces in the external environment.

A.
True

B.
False

Answers

A. True! Strategic always has “strategies”

Answer:

A. True

Explanation:

To be a strategic thinker you need a plan that will turn your weakness (the environment) to your strength.. hopefully I helped...

consider the photo provided what is the photo representing and list two things you know about this process?
Can you guys please answer my question thank you❤️

Answers

Answer:

Nondisjunction (during meiosis in gametogenesis)

Explanation:

This is meiosis because we can see germ cells present, and the chromosome number is halved (typically) by the end of the process. This is nondisjunction because the sister chromatids/chromosomes are failing to separate properly during cytokinesis, causing improper amount of chromosomes in the germ cells. So on the left you have nondisjunction during meiosis II, because you have two cells with the proper amount of chromosomes after the first division. And on the right you have nondisjunction during meiosis I, because you have one cell with no chromosomes after the first division. The steps are as follows: 1 - Meiosis, 2 - Meiosis II, 3 - Fertilization, and 4 - Zygote (creation of).

(HELP ASAP I'LL GIVE YOU BRAINLIEST)
What company began as an online bookstore in someone’s garage and has grown to a multi-billion dollar business that is innovating drone delivery, cashier-less and checkout-less grocery stores?

A.
Amazon

B.
Wal-Mart

C.
Etsy

D.
Spotify

Answers

Amazon duhh I need a longer sentence

Answer:

A. Amazon

Jeff Bezos' parents invested 250,000$ in his business.

Which is larger, 40 centimeters or 670 millimeters?​

Answers

Answer:

670 Millimeters

Explanation:

1 Millimeter = 0.1 Centimeter

670 millimetres is equal to 67 cm which is greater than 40 cm. So 670 mm is greater than 40 cm.

What is a millimetre?

It is a unit of measurement for length/distance. It is a very small unit of measurement. It is a visible unit of measurement, unlike a micrometre which is smaller than a millimetre but measures things that are not visible to the unaided eye.

It is a part of the metric system commonly used in Science, Technology Engineering and Mathematics (STEM). A millimetre is measured as one-thousandth of a metre.

The word metre is derived from a Greek word which means measure. The metric system that is used internationally for the measurement of various quantities is based on decimals.

Like a millimetre is one-thousandth of a metre, a micrometre is one-millionth of a metre. A centimetre is one-hundredth of a meter and a quantity smaller than a micrometre called a nanometer is one-billionth of a meter.

Therefore, 670 mm is 67 cm which is greater than 40 cm.

Read more about measurements, here

https://brainly.com/question/25966695

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Which sequence best describes asexual reproduction?

A. 1 parent cell - 2 genetically identical offspring cells

B. 1 parent cell - 4 genetically different offspring cells

C. 2 parent cells 4 genetically identical offspring cells

D. 2 parent cells - 1 offspring cell with a combination of genes from its parents​

Answers

Answer:

A

Explanation:

1 parent cell - 2 genetically identical offspring cells

hope it helps!

2. Which organisms should be the least common?

Answers

Answer: The illustration is missing the type of organisms known as decomposers. They break down dead animals and plants and have the vital role in returning the nutrients back into the system, where they can be used once more by the primary producers.

Explanation:



What would happen with an increase of plants on earth?

Answers

Answer:

I don't think much would change more animals would have lot of food and we would have lot of air

Biotic and abiotic factors can be limiting factors to a population. True False

Answers

Answer:

True

Explanation:

Answer:

true

Explanation: A limiting factor is any biotic or abiotic factor that PROMOTES the existence, numbers, ... True. Factors that limit one population in a community many also have AN ... True. Different species may have different ranges of tolerance.

what is the difference between fern life cycle and moss life cycle??

Answers

Answer:

Both mosses and ferns undergo alterations of generations. ... The gametophyte is prominent is mosses, but the sporophyte is prominent in ferns. The sporophyte of ferns is differentiated into true leaves, stem, and roots. In contrast, mosses lack true leaves, stem or roots.

Explanation:

(WILL GIVE BRAINLIEST ONLY IF CORRECT!!) How is the dispersive model different from the semiconservative model of DNA replication?
1. In the dispersive model, each strand of both daughter molecules contains a mixture of old and newly synthesized DNA, and in the semiconservative model, each new double helix consists of one old and one new strand.
2. In the dispersive model, the old double helix is degraded, and in the semiconservative model half of its nucleotides are used in the construction of two new double helices.
3. In the dispersive model, one of the two resulting double helices is made of two old strands, and in the semiconservative model the other is made of two new strands.
4. In the dispersive model, one strand of the new double helix is made of DNA, and in the semiconservative model the other strand is made of RNA.

Answers

Answer:

1. In the dispersive model, each strand of both daughter molecules contains a mixture of old and newly synthesized DNA, and in the semiconservative model, each new double helix consists of one old and one new strand.

Explanation: it helps to remember that dispersive means to disperse your DNA molecules! And semi conservative means you keep one of your old strands! Hope this helps!

Answer:

option 1 is correct

Explanation:

in dispersive, each strand of DNA has alternating fragments of old and new DNA while in the semiconservative each new double helix consists of one old and one new strand.

Which of the following is not true of mosses, liverworts, and hornworts?

Question 11 options:

They are non-vascular plants.


They have true roots, stems, and leaves.


They grow in moist places.


They are small and low-growin

Answers

Answer: do not have true roots, stems, leaves

Explanation: they are non-vascular and have no structures of a vascular plant

Answer:

they have not roots, stems, or leaves

Explanation:

hope i helped

If the Sun were replaced with a star with double its mass, how would that affect the force acting on the planets and their positions?


PLEASE HELP ME!!!!

Answers

If the sun were replaced with a star and double it’s size the planets could collapse into it or take different orbits

Which of the following is a function of lipids?
A.They act as genetic material.
B.They increase the rate of reactions .
C.They form chains of amino acids .
D.They store energy for the cell.

Answers

Answer:

Explanation:

A.actúan como material genético.

B.Aumentan la tasa de reacciones.

C.Forman cadenas de aminoácidos.

Almacenan energía para la célula.

above.1. ________________________________ is what happens when depolarization of the atria cause the atria to go into atrial systole. Atrial pressure increases and more blood is forced into the ventricles via the AV valves.2. ________________________________ is the continued contraction of the ventricles that leads to the pressure inside the ventricles to build up and will thusforce open the semilunar valves and blood will be ejected out of the heart to the pulmonary and systemic circuits.3. _______________________________is the process that begins when both the atria and the ventricles are in diastole. Blood from the veins are returning to the heart and the pressure within the atria is higher than the ventricular pressure. Causing the AV valves to open and blood will passively fill into the ventricles. It is important to know that the semilunar valves are closed shut because they have higher pressure than both the left and right ventricle.

Answers

Answer:

1. Passive ventricular fillings.

2. Ventricular ejection.

3. Atrial contraction

Explanation:

In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.

Generally, the cardiac cycle occurs in two (2) stages;

Diastole : in this stage, the ventricles is relaxed and would be filled with blood.

Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.

The following terms describe the physical or mechanical events with the correct phases of the cardiac cycle in mammals (human beings).

1. Passive ventricular fillings: is what happens when depolarization of the atria cause the atria to go into atrial systole. Atrial pressure increases and more blood is forced into the ventricles via the AV valves.

2. Ventricular ejection: is the continued contraction of the ventricles that leads to the pressure inside the ventricles to build up and will thus force open the semilunar valves and blood will be ejected out of the heart to the pulmonary and systemic circuits.

3. Atrial contraction: the process that begins when both the atria and the ventricles are in diastole. Blood from the veins are returning to the heart and the pressure within the atria is higher than the ventricular pressure. Causing the AV valves to open and blood will passively fill into the ventricles. It is important to know that the semilunar valves are closed shut because they have higher pressure than both the left and right ventricle.

What is the difference between an atrium and a ventricle in the heart?

Answers

Answer:

The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle. The right ventricle pumps the oxygen-poor blood to the lungs. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle.

Explanation:

Look at the following diagram of the carbon cycle.An image of carbon cycle is shown. The sun, a cloud, two trees, one on the left and the other on the right, an animal, lake, and a factory are shown in the image. An arrow is shown from the sun towards the left tree marked A. The sun is marked B. There is an arrow from the air above the clouds, marked C, towards the left tree. An arrow from a location close to the ground marked D points towards Dead Organisms, which is a label under the animal. An arrow marked E points from the right tree straight up to the clouds. An arrow marked F points from the animal straight up to the clouds. An arrow marked G points from the factory towards the air above the clouds, C. There is an arrow pointing from the air to the lake labeled Carbonates in Water, an arrow pointing down from dead organisms to Fossils and Fossil Fuels, and an arrow from Fossils to the factory.Which of the following facts is best represented by the arrow pointing from G to C? The chemical energy present in fossil fuels is used to create new forms of energy used for photosynthesis. Energy is conserved because the chemical energy present in fossil fuels is used up completely during burning. The mechanical energy produced on burning fossil fuels is transformed into chemical energy stored in carbon dioxide. Energy is conserved because the mechanical energy produced on burning fossil fuels is less than the chemical energy formed.

Answers

Answer:

wat is the proper question say pls

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