What are some changes that can occur in ecosystems?

Answers

Answer 1

Answer:

Some changes that can occur in ecosystems are seasons, tide cycles, population sizes, succession, evolution, landscape changes, and climate changes.

Explanation:

hope it helps you sir or ma'm


Related Questions


The term semiconservative replication refers to the fact that each new DNA molecule resulting from the replication process is "half-old, half-new." In the diagram, complete the replication required in the
middle of the molecule by adding the required letters representing the missing nucleotide bases. Recall
that ATP energy and the appropriate enzymes are actually required to complete this process.

Answers

Answer:

1. A

2. C

3. T

4. G

5. G

6. G

7. T

8. G

9. A

10. C

11. C

12. C

Explanation:

As stated in this question, Semi-conservative model of DNA replication is the acceptable model of replication in which the two synthesized molecules of DNA consists of one new and one old strand each. DNA replication is carried out by an enzyme called DNA polymerase.

In the semi-conservative model, a double stranded DNA separates into two single strands. Each single strand is used as a template for DNA polymerase to synthesize nucleotides based on complementary base pairing i.e. For every Adenine base, Thymine is added and for every Guanine, Cytosine is added and vice versa.

In this question showing an image of a DNA molecule undergoing replication using semiconservative model, the first DNA molecule consists of the following nucleotides on the old strand and its synthesized nucleotides on the new strand:

Old strand - New strand

1. T - A

2. G - C

3. A - T

4. C - G

5. C - G

6. C - G

On the second DNA molecule, we have the following nucleotides on the old strand and its synthesized nucleotides on the new strand.

Old strand - New strand

7. A - T

8. C - G

9. T - A

10. G - C

11. G - C

12. G - C

Put these steps of solar system formation in order

Answers

Answer:

Explanation: I tried to use the answer that was on there and it was wrong so I got that answer wrong luckily it tells the the correct answer

Answer: Answer is explained below.

Explanation:

Solar system formation put in order:

A solar nebula forms. Gravity pulls the solar nebula upon itself.The solar nebula spinsfaster and faster.The solar nebula flattens into a disk. Gas becomes hot and dense and forms a star.

Hope this helps someone. Good luck everyone!  

*Karma will go after the next person who deletes my answer. How dare you!

Which valve allows for the blood to be pumped into the aorta?

Answers

Answer:

Aortic Valve

Explanation:

I just know it

The Hawaii Islands were formed as a result of
A. lava flowing over Earth's surface where two tectonic plates move apart
B. an oceanic plate moving over a mantle hot spot
C. two oceanic plates colliding to form an island arc
D. tectonic plates sliding past each other

Answers

The correct answer is A

Answer:

a is your answer

Explanation:

how do unicellular and multicellular organisms differ?​

Answers

Answer:

Unicellular organisms- Organisms which have only single cell are called unicellular organisms.

Multicellualr organisms- Organisms with many cells are called multicellular organisms.

Answer:

multicellular organisms need organs to function properly

Explanation:

The fruits have several purposes. Which purposes might be similar to those of a cone?

Answers

Answer:

Flowers and cones have different structures. Cones when mature have a woody texture and is made up of scales while flowers have colorful petals, sepals and both male and female reproductive portions are called stamens and pistils.

Explanation:

Answer:

the other side of a cone

Explanation:

Which helps in the production of eggs?

testosterone
estrogen
semen
fallopian tube

Answers

Answer:

Semen helps in the production of eggs!

answer:

... semen...

explanation:

i'd be embarrassed to explain that bit

If you were beamed into the Earth's outer core and you wanted to move to somewhere cooler you would:

Answers

No you don’t. Cooler by the way

CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION THANK YOU!!

Answers

Answer:

A.Negative Growth

Explanation:

HELP ME ASAP!!!!
Select the correct answer.
Gina is scuba diving when she notices a large fish glide over her. It has a flattened body and she notices gills on its underside. Which taxonomic
group does the fish belong to?
A.
Selachii
B.
Batoidea
C.
Sarcopterygii
D.
Actinopterygii

Answers

Answer:

Your answer is B) Batoidea. Batoidea is a superorder of cartilaginous fishes commonly known as rays.

Answer:

b because the guy above me said so

Please select the word from the list that best fits the definition

Brings dry, clear weather

Answers

Answer:

conduction?

Explanation:

Answer:

anticyclone/2nd one down

Which is the best description of photophosphorylation?

Answers

photophosphorylation refers to the use of light energy from photosynthesis to ultimately provide the energy to convert ADP to ATP, thus replenishing the universal energy currency in living things .

Which of the following is not a viral disease : (needed ASAP)

1. AIDS
2. Typhoid
3. Mumps
4. Polio ​

Answers

Answer:

It is typhoid. typhoid is not a viral disease

Answer:

Typhoid is not a viral disease.

Explanation:

Viral diseases are spread through virus particles, while typhoid is spread from typhi bacteria.

Which term refers to the fact that naturally occurs omg he universe

Answers

Answer:

Scientific law.

Explanation:

A scientific law is a statement that the scientific community elaborates on after observing a natural phenomenon and performing several experiments concerning certain phenomena. Scientific laws aim to explain the reasons why something happens and what may cause it to predict it in the future.

Succession Interactive!

What is the difference between primary succession and

secondary succession?

Primary succession occurs in an area that is disrupted by a

fire or other natural disaster but secondary succession does

not.

Primary succession occurs after secondary succession.

Primary succession involves only plants but secondary

succession involves animals too.

Primary succession occurs in an area with no life and no soil

but secondary succession happens in an area where an

existing community was disrupted.

Answers

Answer:

Primary succession occurs in an area with no life and no soil but secondary succession happens in an area where an existing community was disrupted.

Explanation:

Ecological succession, which is the series of changes that occurs in an ecosystem over a period of time, can be divided into two types namely: primary succession and secondary succession.

- Primary succession is a kind of succession in which a bare surface or rock is colonized by certain organisms called PIONEERS. Primary succession occurs in an area with no life and no previous soil.

- On the contrary, secondary succession occurs in an area that has been previously colonized but disturbed as a result of natural occurrences e.g earthquake, wildfire, flooding etc.

I’m stuck with this Encryption Table, if anyone can please help me solve this I would appreciate it very much.

Answers

Answer:

hu7gf6dcxyxycjc c.f. c ycyftc Tx tv hcv12345678910112131415161727 8gh

large balen whales, and even whale sharks feed primarily on plankton communities. How can such samll organism provide food for such large animals?​

Answers

Answer:

plankton my look small but if you have a micoscope they are pretty big and no not because it is zoomed on them

Explanation:

do not question me smarts i am smart tho lot smarter then you think i am

What effect does studying with music have on student test scores hypothesis?

Answers

Answer:

It helps them to focus

Explanation:

some people focus better when listening to music

Answer:

For some students it can help and for some it cant

Explanation:

Purple petal color in pea plants is dominant to white petal color. Two heterozygous pea plants are crossed.

Answers

Answer:

what do you need to know?

Explanation:

Answer:

use a punnett square if you need help u can ask me

Is thigmotropism is caused by water?

Answers

Answer: No. Hydrotropism is caused by water

Explanation:

The Ebola virus can often have symptoms similar to bacterial pneumonia, an infection of the lungs. These symptoms include chest pains, shortness of breath, and fever. Which statement best summarizes the differences between these two diseases? (SC.6.L.14.6)a.Viruses can replicate because they are living organisms, while bacteria cannot. b.Viruses are not living organisms, but bacteria are living. c.Viruses can be beneficial to live organisms but bacteria are often infectious. d.Viruses are living organisms, while bacteria are not.

Answers

Answer:

Eblow is a terrible thing.

Explanation:

Answer:

I think its, option b) Viruses are not living organisms, but bacteria are living.

Explanation:

The other options don't fit "summarize the differences b/w bacteria and virus", or simply don't make sense...  

Bacteria can replicate as well, not only virus, so that cannot be a difference

The virus is often the one being more dangerous, there is something called "good bacteria"

A virus isn't  living, (for the sake of this answer), and we all know for sure that bacteria is living

So, that's how option b is correct

I hope this helped you!!

Which is a component of cell theory?

a.All living things grow into cells.
b.All living things are made of cells.
c.Cells come from nonliving matter.
d.Cells come from non-cells.

Answers

the answer is B. all living things are made of cells

Answer:

B.

Explanation:

That's true without cells we wouldn't live.

Covalent bonds can be best described as neutral atoms coming together to share electrons. neutral atoms coming together to create electrons. ionized atoms coming together to trade electrons. ionized atoms coming together to destroy electrons.

Answers

Answer:

neutral atoms coming together to share electrons.

Explanation:

Answer:

The answer is neutral atoms coming together to share electrons.

Explanation:

Bc covalent compounds are compound whose atoms form bonds by sharing electrons

Have a great day!!

What is the role of lay person like you in the mission of the church today?

Answers

Explanation:

base on the person opinion

Plants and animal cells are examples of
cells
O prokaryotic cells
O eukaryotic cell

Answers

Answer:

eukaryatic which the RH whitthakar was divided PLANTAE and animalia kingdoms in eukaryotes

Suppose we stock a pond with 100 fish and note that the population doubles in the first year (with no harvesting), but after a number of years, the population stabilizes at what we think must be the carrying capacity of the pond: 2,000 fish. Growth seems to have followed a logistic curve. a. What population size should be maintained to achieve maximum yield, and what would be the maximum sustainable fish yield? b. If the population is maintained at 1,500 fish, what would be the sustainable yield?

Answers

Answer:

Explanation:

From the given information,

The first process is to determine the initial growth rate by using the formula:

[tex]R_o = \dfrac{In(2)}{t_d}[/tex]

where;

The initial growth rate(constant) = [tex]R_o[/tex] ; &

the doubling time = [tex]t_d[/tex] = 1 year

[tex]R_o = \dfrac{In(2)}{1 \ year}[/tex]

[tex]R_o[/tex] = 0.693 / year

Now, we move up to the net stage to find the growth constant by using the formula:

[tex]r = \dfrac{R_o}{(1 - \dfrac{N_o}{K})}[/tex]

where;

[tex]N_o[/tex] = population of fish in the pond = 100

[tex]R_o[/tex]  = The initial growth rate(constant)  = 0.693 /year

K = carrying capacity = 2000

Then;

[tex]r = \dfrac{0.693 \ /year }{(1 - \dfrac{100}{2000})}[/tex]

[tex]r = \dfrac{0.693 \ /year }{(1 - 0.05)}[/tex]

[tex]r = \dfrac{0.693 \ /year }{(0.95)}[/tex]

r = 0.730 / year

a)

Now, the maximum yield can be evaluated by using the expression:

[tex]= \dfrac{rk}{4}[/tex]

[tex]= \dfrac{0.730 \times 2000}{4}[/tex]

= 365 fish per year

Also, the maximum sustainable yield is said to be half of the carrying capacity suppose that the population growth obeys logistic curve;

i.e.

[tex]N' = \dfrac{1}{2} \times 2000[/tex]

N' = 1000 fish

b)

If the population is maintained at 1500 fish;

The sustainable yield can be calculated by using the formula:

The Sustainable yield = [tex]r\times N (1 - \dfrac{N}{K})[/tex]

The Sustainable yield = [tex](0.730/ year ) (1500) (1 - \dfrac{1500}{2000})[/tex]

The Sustainable yield = 1095 × 0.25

The Sustainable yield = 273.75 fish per year

The Sustainable yield ≅ 274 fish per year

Population size should be maintained to achieve maximum yield and Sustainable yield if population is maintained at 1,500 fish are 364.7 , 273.525 fish per year

Sustainable yield:

Given that;

Stock in start = 100 fish

Double in 1 year

Capacity of pond = 2000 fish

Find:

Population size should be maintained to achieve maximum yield

Sustainable yield if population is maintained at 1,500 fish

Computation:

Growth rate = ln₂ / 1

Growth rate = 0.693 per year

With no growth constraint r = [tex]\frac{0.693}{1-\frac{100}{2000} }[/tex]

With no growth constraint r = 0.7294 per year

A. Population size should be maintained to achieve maximum yield = [tex]\frac{0.7294 \times 2000}{4}[/tex]

Population size should be maintained to achieve maximum yield = 364.7 fish per year

B. Sustainable yield if population is maintained at 1,500 fish = [tex][(0.7294))(1500)][1-\frac{1500}{2000} ][/tex]

Sustainable yield if population is maintained at 1,500 fish = 273.525 fish per year

Find out more information about 'Sustainable yield'

https://brainly.com/question/24614592?referrer=searchResults

Is your prediction supported by the membrane potential chart? Explain your answer.

Answers

Answer:

Yes, it is. The chart shows that the initial charge of the neuron is negative. When the neuron is stimulated, sodium ions enter the cell. So, the voltage inside the cell changes to positive. When potassium ions move outward, the voltage decreases until it reaches its previous state.

Explanation:

Plato answer

Please someone help me with my Biology questions. PLEASE ​

Answers

Which Questions. I cant find them

Answer:

I cant see the question

Explanation:

The graph shows the predicted change in land usage when the population growth rate is positive and average. What effect would average population growth have on land usage?

Answers

The effect that the average population growth would have on land usage, considering the given graph is that: Option D.

What is Urban Land Use?

Urban land use can be described as the level of activities reflected by a location which involves the following:

RetailingManufacturingResidenceInstitutional and public buildingsTransportation, among others.

Urban land use increases, normally, as population increases. From the graph shown, the purple line shows urban land use increased above 30%.

Therefore, the effect that the average population growth would have on land usage, considering the given graph is that: Option D.

Learn more about urban land usage on:

https://brainly.com/question/818787

Answer:

Urban use of land rises to more than 30 percent of available land

Explanation:

Porcupines have long sharp hairs called quills. What is the main function of the quills on the porcupine?

Answers

Answer:protection from other predators.

Explanation: the quills will stick into a predator that attack the porcupine Note: it does NOT shoot its quills

Answer: protection from other predators.

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