The role of a keystone species is..
A. To kill off invasive species in the area
B. To maintain biodiversity in the ecosystem through complex interactions with other animals in the area
C. To be able to make the environment safe

Answers

Answer 1

Answer:

The answer is B

Explanation:

A keystone species is an organism that helps define an entire ecosystem. Without its keystone species, the ecosystem would be dramatically different or cease to exist altogether. The ecosystem would be forced to radically change, allowing new and possibly invasive species to populate the habitat.


Related Questions

The result of genes controlling mitosis not working properly is:
a. diabetes
b. high blood pressure
c. dyslexia
d. cancer

Answers

Answer:

d

Explanation:

This leads to unnecessary replication and out-of-control cell and tissue growth

A(n)\ is a system composed of living organisms and their interaction with the surrounding environment, where the main focus is the interaction and relationship between species .
1.habitat
2.biome
3.environemnt
4.ecosystem

Answers

Answer:

The correct answer is 4.ecosystem.

Explanation:

An ecosystem is a system, that is, a set of elements that interact with each other, in which such elements are: physical environment, living beings and their interactions (predator-prey, parasite-host, competition, symbiosis, pollination, distribution of seeds , etc.) The interrelation between living beings (competition, parasitism, etc.) occurs through cycles of matter and energy flows on which the functioning of the entire ecosystem depends.

____ The lichen- a close relationship of a fungus and an alga that benefits both.
A. Mutualism
B. Commensalism
C. Parasitism

Answers

it's Mutualism.................

How is replication of an experiment important in a scientific investigation?

Answers

Replication is important in science so scientists can “check their work.” The result of an investigation is not likely to be well accepted unless the investigation is repeated many times and the same result is always obtained.

3.What are the functions of vacuoles, lysosomes, and the
cytoskeleton?

Answers

Answer:

In plant cells, vacuoles maintain water balance. Lysosomes break down excess or worn-out cell parts. The cytoskeleton is a structure that helps cells maintain their shape and internal organization, and it also provides mechanical support that enables cells to carry out essential functions like division and movement.

Explanation:

Storage, waste disposal and structural support  are the functions of vacuoles, lysosomes, and the cytoskeleton.

The following are the roles of vacuoles, lysosomes, and the cytoskeleton: Vacuoles are membrane-bound organelles that can be found in the cells of fungus, protists, and plants. They serve a variety of purposes, such as: Vacuoles have the capacity to store a wide range of materials, including waste materials, pigments, water, and nutrients. They control the osmotic equilibrium and aid in maintaining turgor in plant cells. Vacuoles in plant cells can be used as a storage space for a variety of waste materials and poisons that are damaging to the cell. They keep these molecules apart and stop them from harming other cell components. Support for structure: In plant cells, the huge central vacuoles press on the cell wall to support structure and preserve the form of the cell. Lysosomes are membrane-bound organelles that can be found in cells.

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How are humans , technology , and the environment interrelated

Answers

Answer:

Humans , technology , and environment are always interrelated.

Explanation:

To procure nutrition, water, electricity, medications, construction materials, and several other objects, humans must communicate with the environment. Development of science and technology had already allowed us to take advantage of the eco system, but they have also resulted in massive environmental damage and exploits.

The reproductive handicap for sexual reproduction refers to __________. View Available Hint(s) The reproductive handicap for sexual reproduction refers to __________. diluted genetic investment in offspring dependence on hormonal cycles the need to provide energy for the offspring the difficulty of finding mates the need for maturation prior to reproduction

Answers

Answer:

diluted genetic investment in offspring.

Explanation:

Reproduction can be defined as a biological process which typically involves living organisms producing an offspring.

Basically, there are two (2) methods of reproduction and these are;

I. Asexual reproduction: it involves the cloning of a living organism to produce an offspring because there is only a single parent.

II. Sexual reproduction: it involves the combination of the genome (gamete) of a male and female living organism during fertilization.

Generally, asexual reproduction produces more reproductive offsprings than sexual reproduction, this is referred to as a reproductive handicap.

Hence, the reproductive handicap for sexual reproduction refers to diluted genetic investment in offspring.

This ultimately implies that, the sexually reproducing female would have a 50% genetic material passed to its female and male offspring.

However, sexually reproducing female has 100% transfer of her genetic materials through asexual reproduction.

what factors can change the population size?​

Answers

Answer:

Birth rate, death rate, and immigration of foreign species

What is Florida’s state freshwater fish don’t search guess

Answers

Answer:

largemouth bass

Explanation:

Answer:

I want to say large mouth bass my uncles live in Florida

Explanation:

THE CHOICES ARE IN THE PIC PLEASE HELP

when does the process of sublimation occur

Answers

Answer:

c

Explanation:

because the solid ice will sublime into gas

PLS HELP i’ll mark brainliest !!!


1. Define celular respiration

2.What types of organisms use cellular respiration?

3 In which cell organele does most of aerobic celular respiration occur?

4.What are the reactants of aerobic celular respiration?

5.What are the end-products of aerobic cellular respiration?

6. What is the chemical equation for aerobic cellular respiration? How does it relate to the
chemical equation for photosynthesis ?

7. What are the 3 stages of aerobic cellular respiration? Where in the cell does each stage
occur and how many molecules of ATP are generated for each stage? Which stage generates
the most amount of ATP?

8. What types of organisms/cels utilize anaerobic celular respiration?

9. What are the two types of anaerobic respiration?

10. What is fermentation?
What organisms utilize fermentation?

11. Where in the cell does
fermentation take place?

12. What are the end-products of fermentation?

13. How many ATP molecules are generated during fermentation?

14. What types of organisms/cells utilize lactic acid anaerobic respiration? How many molecules
of ATP are generated by lactic acid respiration?

Answers

Explanation:

1. Cellular respiration is the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances.

2.Bacteria, Archea, Plants, Protists, Animals and Fungi.

3.Mitochondria-The eukaryotic cell structure where cellular respiration occurs.

4.Glucose reacts with Oxygen

5.Carbon dioxide and water

6.C6H12O6+6O2 yields 6CO2+6H2O+ energy.

it's the direct opposite of the photosynthesis

chemical equation.

7.Glycolysis-cytoplasm, 2 ATP.

Krebs cycle-mitochondria, 34 ATP.

Oxidative phosphorylation-mitochondria, 26 ATP.

Krebs cycle produces the most ATP.

8.Bacteria and Archaea.

9.Alcohol fermentation and lactic acid fermentation.

10.Fermentation is the process in which energy can be released from glucose even though oxygen is not available.

Many bacteria and yeasts.

11.The cytoplasm

12.alcohol, glycerol and carbon dioxide from yeast.

13.2 ATP

14.Bacteria, 2 ATP molecules.

2
Allele frequencies tend to remain the same
generation after generation unless acted
upon by outside forces. This is known as the
(3 Words)

Answers

Answer:

Hardy-Weinberg equilibrium

Explanation:

The Hardy-Weinberg law is established in it is that in a sufficiently large population, in which the matings occur randomly and that is not subject to mutation, selection or migration, the gene and genotype frequencies remain constant from generation to generation, once a state of equilibrium has been reached that is reached after one generation at autosomal loci. A population is said to be in equilibrium when alleles from polymorphic systems maintain their frequency in the population through generations.

Please help <3 Will give brainliest

Answers

Answer:

A

Explanation:

7. Cells will generally divide when? *

Answers

Answer:

cells will generally divide when reproduction occurs

hope this helps you ☺️☺️

PLZZZ HELP ME

I WILL REPORT ANY LINKS

Which statement correctly
compares humidity in warm and cold air?

A. Warm air holds less moisture than cold air.

B. Warm air will always hold the same amount of moisture as cold air.

C. Warm air can hold more moisture than cold air.

D. Neither warm or cold air can contain water vapor.

Answers

Answer:I believe it is c, it makes the most sense to me. I apologize if I’m wrong

Explanation:

The statement which correctly compares humidity in warm and cold air is that warm air can hold more moisture than cold air. Thus, the correct option for this question is C.

What is Humidity?

Humidity may be defined as the amount of water vapor present in the atmosphere of living organisms or an ecosystem. If there is a lot of water vapor in the air, the humidity will be high. The higher the humidity, the wetter it feels outside. On weather reports, humidity is usually explained as relative humidity.

High humidity levels are more likely found in warm air. This is because warm air holds more water at higher temperatures. Due to this, warm air has the capacity to hold a lot of moisture.

But on contrary, fewer humidity levels are more likely found in cold air. This is because cold air holds less water at lower temperatures. Due to this, cold air does not have the capacity to hold a lot of moisture.

Therefore, the statement which correctly compares humidity in warm and cold air is that warm air can hold more moisture than cold air. Thus, the correct option for this question is C.

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what's the full form of DNA?​

Answers

Answer:

Deoxyribonucleic acid is the full form of DNA.

I NEED HELP ON THIS HURRY​

Answers

Answer:

hHSS (human Hepatic Simulator Substance)

Explanation:

Which of the following explains why geological events occur?

a The lower mantle is solid rock
b The crust is the same thickness throughout
c The crust is a single layer throughout
d The lower mantle is hotter

Answers

The lower mantle is hotter

Answer:

Hey there,

The answer is A.

This is because the crust is broken into parts called plates and these plates collide with each other or separate from each other or slide past each other.

They move because they sit on top of semi molten rock in the mantle. The semi molten rock moves due to convection currents which is heated up by the core.

It’s is not option B because it does not have u form thickness through out it. For eg the continental crust is 60 km thick while the oceanic plates are wonly 10km thick.

It is not C as the mantle is semi molten not solid.

And it’s not D because it’s not a single layer but multiple layers.

So A is the answer.

I hope this helps!

Explanation:

1.1 Cell division is found to occur in:
A growth
B reproduction
С
cancer
D all options.

Answers

Answer:

Cell division is found to occur in both groth and reproduction.The answer is D

Answer:

D all options.

Explanation:

Cancer

Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death.

Reproduction

Cell division usually occurs as part of a larger cell cycle. Both of these cell division cycles are used in the process of sexual reproduction at some point in their life cycle.

Growth

In unicellular organisms, cell division is the means of reproduction; in multicellular organisms, it is the means of tissue growth and maintenance. Most tissues of the body grow by increasing their cell number, but this growth is highly regulated to maintain a balance between different tissues

Hope this Helped!!!

Please help fast!!!!5. Challenge: A food web is a more complicated
diagram that shows the feeding relationships of all
the organisms in the ecosystem. As with a food
chain, an arrow pointing from species A to
species B indicates species B gets its energy
from species A.
Nassau
grouper
Yellowtail
snapper
Hawksbill
sea turtle
Long-spined
sea urchin
In the diagram at right, create a food web by
drawing arrows ( - ) to show which organisms
obtain energy from others. Hand draw or click on
the image and select ED
Queen
angelfish
Stoplight
parrottish
Sponges
Star
coral
Staghorn
coral
Plankton
Symbiotic algae
Algae

Answers

Answer: there is no diagram and if you could explain that would be helpful

Explanation: but I can do some yellow tail snapper(a) go’s to a Nassau grouper(b). long spine sea urchin(a) goes to hawks bill seaturtle(b)

Answer the following questions:
⦁ What is the purpose/function of the Respiratory System?
⦁ What is the purpose of the tiny hairs called cilia in your nose?
⦁ What are the purposes of the pharynx?
⦁ What is the purpose of the epiglottis?
⦁ How is the respiratory system linked to the cardiovascular system

Answers

Answer:

1. The respiratory system allows us to breathe . They bring oxygen into our body and remove carbon dioxide from the body .

2. Tiny hairs called cilia protect the nasal passageways and other parts of the respiratory tract, filtering out dust and other particles that enter the nose through the breathed air.

3. The throat (pharynx and larynx) is a ring-like muscular tube that acts as the passageway for air, food and liquid. It is located behind the nose and mouth and connects the mouth (oral cavity) and nose to the breathing passages (trachea [windpipe] and lungs) and the esophagus (eating tube).

4. The main function of the epiglottis is to seal off the windpipe during eating, so that food is not accidentally inhaled.

5. The heart pumps blood to the lungs for oxygenation and the lungs then give the heart back oxygen rich blood to be transmitted to the whole body

Explanation:

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When a trait has two forms and one trait is expressed over the other, the trait that is
expressed is said to be ─

Answers

Answer:The trait that is expressed is said to be dominant

Explanation:

Yo plz help no links
6. _________________ happens when solid material separates out of a liquid, usually when the liquid evapo- rates.
a. Weathering
b. Erosion
c. Sedimentation d. Precipitation

Answers

Answer:

Those sediments can be formed from the weathering and erosion of preexisting rocks. Sedimentary rocks also include chemical precipitates, the solid materials left behind after a liquid evaporates. ... For example, the mineral olivine crystallizes out of magma at much higher ... Dana Desonie, Ph.D.

Explanation:

Answer:

Sedimentation

Explanation:

Sedimentation is the tendency for particles in suspension to settle out of the fluid in which they are entrained and come to rest against a barrier.

Hope this helped!!!

in the experiment it is important to make measurements that are both precise and accurate
which of these measurements of time is the most precise
5.1 second s
5.14 second s
5 second s.​

Answers

Answer:

5 second s.

Explanation:

The base unit for time is the second (the other SI units are: metre for length, kilogram for mass, ampere for electric current, kelvin for temperature, candela for luminous intensity, and mole for the amount of substance). The second can be abbreviated as s or sec.

5.14 seconds

Explanation:

It gives a more specific time compared to 5.1 & 5

PLEASE HELP :( ILL GIVE U BRAINLIEST One person who is heterozygous for both attached earlobes and Widow’s peak mates with someone who has no widow’s peak and detached earlobes. Predict the Genotypes of the offspring and report the ratio of dominant/recessive phenotypes.

Answers

Answer:

AaWw,Aaww, aaWw, aaww

Explanation:

cuz

The anther contains (a sepals (b ovules (c caroled. Pollen grain

Answers

Answer:

The anther contains

d) Pollen grains

The diagram below represents a stack of rock layers. Examine the diagram, and answer the question that follows. What do these layers and their fossils suggest about Earth's history?

Answers

Answer:

The farther down a layer with a fossil in it the farther back in earths history that organism lived.

Explanation:

Answer:

Layer T is older than 110 million years, and Layers R, X, and G are younger than 110 million years.

Explanation:

Because the principle of superposisiton states that younger layers of rock will be closer to the surface while older layers of rocks will be father to the surface therefore older

If the ultraviolet light damages the DNA what will be its effect on the protein synthesis? [Serious Answers pls] ​

Answers

Since the DNA is damaged, the RNA created from it will not be correct. So after protein synthesis the protein will come out with a messed up shape. A change in the shape means a change of the function for a protein. So, In the end, the protein would not function as intended.

What do yall think ??

Answers

ANSWER:

B- increase the number of caterpillars


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Which statements about geocentric model and heliocentric model are true? Select the two correct answers.

A. They both are models of the solar system.
B. They both show the position of Earth relative to the Sun.
C. They both show Earth at the center of the solar system.
D. They both show the Sun at the center of the solar system.

Answers

Answer: Your correct answer would be both A & B.

Explanation: A is the correct answer because both of these models are in fact models of our solar system. The geocentric model had Earth at the center of the solar system with all the other planets and sun rotating around us. The heliocentric model is the accepted model of our solar system today with the sun at the center and planets rotating in slightly elliptical fashions around it due to gravitational pull. B is also correct because as I just explained, both models position Earth in relativity to the sun though both models vary greatly. The aim of both of these models was to specify where Earth was exactly in the solar system. I hope this has been of use to you! Please do not hesitate to ask if you have other questions :)

The two correct statements about the geocentric and the heliocentric model are:

They both show the position of Earth relative to the Sun. They both are models of the solar system.

The geocentric model

The geocentric model has the assumption that the earth is at the center of the universe. The sun and the planets are said to revolve around the earth in this model

The heliocentric model:

The heliocentric model has the assumption that the sun is at the center of the universe. The earth and the planets revolve around it.

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