3. The island of Rum in Scotland had wolves and trees 500 years ago. It now has neither. A. Offer one hypothesis for the current condition based on the concepts of keystone species and trophic cascades b. Suggest one way to test the hypothesis
To test for the keystone species hypothesis, the wolves in another region can be removed or trees can be reintroduced to see the effect on the ecosystem.
What is a keystone species?A keystone species is an organism whose existence defines an entire ecosystem such that them, the ecosystem would be severely affected or may not exist.
Trophic cascades are events which result in serious distortions in an ecosystem as a result of the removal or addition of a top predator.
To test for the hypothesis of keystone species and trophic cascades, the wolves in another region can be removed or trees can be reintroduced to see the effect on the ecosystem.
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Why don't we use cloning to get herds of identical livestock?
The structure of cordycepin reveals that it lacks the ___________. This functional group is critical for addition of _______________ to the growing RNA chain, so after cordycepin is incorporated as a ribonucleoside ___________into the RNA chain, it prevents the further addition of ________.
The structure of cordycepin reveals that it lacks the 3' OH. This functional group is critical for addition of [ribonucleotides] to the growing RNA chain, so after cordycepin is incorporated as a ribonucleoside [monophosphate] into the RNA chain, it prevents the further addition of [ribonucleotides].
What is the role of ribonucleotides in transcription?Ribonucleotide-based mutagenesis requires two Top1 cleavage events on the same DNA strand and, in the context of transcription, modifications arise mainly when the enzyme cleaves the not-transcribed strand of the reporter.
Thus, 3' OHribonucleotides, monophosphate are the answer.
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What type of creature accounts for 25% of all plant and animal species?.
Answer:
I think the insects are the answer
Explanation:
In terms of numbers of species, insects certainly represent the largest percentage of the world's organisms. There are more than 1 million species of insects that have been documented and studied by scientists.
PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE
Write a short essay on how will you protect natural resources.
Asking all experts
This is worth 50 POINTS
Answer:
By reducing, reusing and recycling of non-renewable resources. Non-human species must be disturbed only to meet the basic needs. Planting of more and more trees to save our forest resources. Seeking alternatives to non-renewable resources.
Explanation:hope this helps..pls mark me brainliest
Natural resources are essential to sustain human life. These resources include air, water, soil, minerals, forests, and wildlife. However, the rapid population growth, industrialization, and urbanization have resulted in the depletion of natural resources. Therefore, it is imperative to protect them.
The following are some of the ways that can help in protecting natural resources:
1. Reduce, Reuse, and Recycle: Reducing the consumption of resources, reusing products, and recycling waste materials can significantly reduce the pressure on natural resources.
2. Conserve Water: Water is a precious resource, and its scarcity is becoming increasingly common. Conserving water by fixing leaks, using water-efficient appliances, and avoiding wastage can help protect this resource.
3. Promote Sustainable Agriculture: Sustainable agriculture practices can help in conserving soil, water, and biodiversity, which are essential natural resources for agriculture.
4. Use Renewable Energy: Fossil fuels are non-renewable resources that contribute to climate change. Therefore, it is important to use renewable energy sources such as solar, wind, and hydro energy to reduce the reliance on non-renewable resources.
5. Plant Trees: Trees help in purifying the air, conserving soil, and supporting wildlife. Planting trees can help in restoring the natural habitat and reducing the carbon footprint.
6. Use Public Transport: Using public transport, cycling, or walking can help in reducing air pollution and conserving fuel, which is a non-renewable resource.
In conclusion, protecting natural resources is vital for the survival of humanity and the planet. Implementing the above measures can help in reducing the pressure on natural resources and ensure their sustainability for future generations.
Hope this helps!
Help please
#1 The term "endosymbiotic" means...
A. inside and helping each other
B. inside and attacking another
C. outside and attacking another
D. outside and helping each other
#2 The most difficult step for science to explain about how early life formed is...
A. how molecules could self replicate.
B. how selectively permeable membranes formed.
C. how organic molecules formed.
D. how nucleic acids like DNA began working with amino acids to make proteins.
Answer:
#1 [A. inside and helping each other
#2 [D. how nucleic acids like DNA began working with amino acids to make proteins
a. Describe three ways that the National Park Service Organic Act and the
Endangered Species Act could work together to protect the environment and
promote recreational opportunities for citizens. (3 points)
Creation and maintenance of recreational parks and wildlife sanctuaries will help protect the environment and promote recreational opportunities for citizens.
What are endangered species?Endangered species are species which face the danger of extinction due to environmental factors or human activities.
Endangered species are only few in number.
The National Park Service Organic Act and the Endangered Species Act could work together to protect the environment andpromote recreational opportunities for citizens by:
creating protected parks for endangered species to staymaking these parks open for visitation recreational activities for citizens By ensuring that the citizens are educated as to the dangers faced by the endangered species.Therefore, creation and maintenance of recreational parks and wildlife sanctuaries will help protect the environment and promote recreational opportunities for citizens.
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Mountainside communities often have plans in place to keep people safe during a natural disaster. Place the mass movements in order based on
the amount of reaction time the community members will have to get to safety. Start with the mass movement event that gives people the least
amount of time to react.
Answer:
avalanche, earthflow, creep,
Explanation:
Photosynthesis transforms molecules of water and carbon dioxide into molecules of what?
Explanation:
Photosynthesis transforms molecules of water and carbon dioxide into glucose molecule
ASAP ONLY CORRECTLY
Seasonal changes occur when the Earth moves so that the Northern Hemisphere and the Southern Hemisphere are tilted more toward or away from the Sun. If the Northern Hemisphere is tilted toward the Sun and it is summer, what is happening in the Southern Hemisphere?
A.
The Southern Hemisphere is tilted away from the Sun, and it is summer.
B.
The Southern Hemisphere is tilted toward the Sun, and it is summer.
C.
The Southern Hemisphere is tilted away from the Sun, and it is winter.
D.
The Southern Hemisphere is tilted toward the Sun, and it is winter.
Answer:
correct me if I'm wrong thanks.
Explanation:
Hope it's correct hihi
Answer:
C. The Southern Hemisphere is tilted away from the Sun, and it is winter
Explanation:
took the test and got it right
The axis of symmetry is a line that goes through the.
The first division of meiosis is called a reduction division. This is because:.
its due today pls answer <333
Answer:
B
Explanation:
Every balanced chemical equation follows law of conservation of mass. This law states that mass can neither be created nor be destroyed but it ca only be transformed from one form to another form.
In a chemical reaction, total number of individual atoms on the reactant side must be equal to the total number of individual atoms on the product side.
During a chemical reaction, the atoms on the reactant side must also be present on the product side.
For the given reactants, the chemical equation will follows:
As, the reactant side contained carbon, hydrogen and oxygen atoms only. So, the product will also contain the same atoms.
the correct answer is Option B.
When a person goes into cardiac arrest, the doctors
will often shock the heart to try and restart it. What
system does the electric shock mimic?
Answer:
nerve system
Explanation:
because it is trying to give a electric pulse to start it
Jacob lives in the town of Dansbury. Every afternoon, a breeze blows from the west over the town of Dansbury. In summer, there are often showers in the afternoon. What is most likely to the west of the town of Dansbury? A. A mountain B. A desert C. A lake D. A valley
Which of the following is a result of government attempts to increase energy efficiency? a. american council for an energy efficient economy b. alliance to save energy c. energy star d. all of the above please select the best answer from the choices provided a b c d
Answer:
c
Explanation:
just trust me because it is hard to explain
5. Without certain organisms that live in soil, plants would not be able to use
a. carbon.
b. oxygen.
c. nitrogen.
d. carbon dioxide.
Answer:
d. carbon dioxide.
Explanation: hope this helps:)
Why should it not be surprising that for many cells water requires a protein for its transport across a membrane
Answer:
not entirely sure but it could be because the cell is to big to fit through the membranes pores. the protein helps it get through! again, not really sure but that would be my best guess
The neurological effects of burnout on the brain include all of the following parts of the brain except A. frontal lobe. B. amygdala. C. anterior cingulate cortex. D. hypothalamus.
The neurological effects of burnout on the brain include all of the following parts of the brain except the anterior cingulate cortex.
What causes burnout in the brain?Burnout in the brain is caused by implacable stress or tension. It affects almost all the major parts of the brain.
Amygdala enlarges in shape during the burnout in the brain occurs. The pre-frontal lobe of the brain may also thin in structure due to the result of burnout. Hypothalamus may also get affected and loses its original shape and size.
Therefore, the neurological effects of burnout on the brain include all of the following parts of the brain except the anterior cingulate cortex.
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Identify the correct statement(s) about glial cells and their functions. Select all that apply. Astrocytes participate in the formation of the blood-brain barrier. Oligodendrocytes act as stem cells, producing neurons and glia. Schwann cells myelinate dendrites in the PNS.
The correct statement about glial cells and their function is given below:
Astrocytes participate in the formation of the blood-brain barrier.What do you mean by Glial cells?Glial cells may be defined as any of the cells that hold nerve cells in place and help them.
Astrocytes may even form barriers to the spread of neurotransmitter substances released as synapses. It tends to participate in the composition of the blood-brain barrier.
Oligodendrocytes are responsible for the formation of the myelin sheath of nerve fibers in the cells.
Schwann cells myelinate axons not dendrites in the PNS.
Therefore, it is well described above.
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What is an adaptation
Answer:
b
Explanation:
traits that enhance organisms ability to survive and reproduce in it's environment
What makes a fungus different from a protist, a plant, and an animal?
Answer:
fungus is a multicellular organism that uses spores to reproduce and connot make their own food
Explanation:
unlike protists, fungi are mainly multicellular, and unlike plants, fungi cannot make their own food/energy and must get it from other organisms
fungi are different from animals in many ways, just a few are that fungi are immobile, use spores to reproduce, and do not have stomachs to absorb food
Give two examples of solutions in nature and explain why each is important
Two examples of solution in nature are seawater which is a solution of minerals and petroleum which is a solution of hydrocarbons.
What is a solution?A solution is composed of a solute and a solvent. The solute is added to the solvent to form a solution.
There are many examples of solutions in nature. Foe instance, seawater is a solution of several minerals in water. Also, petroleum is a solution of several hydrocarbons.
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1pt In which of the following locations does evaporation happen?
OA. clouds
O B. oceans
OC. streams
OD. all of the above
Answer:
The answer is B,C
Explanation:
Evaporation the process of turning from liquid into vaporHow do B cell and T cells work together to defend the body against pathogens?
Answer:
Our acquired immunity—also called adaptive immunity—uses T-cells and B-cells when invading organisms slip through that first line
Explanation:
Says gooe
What’s the answer .. I don’t get it
Answer:
D
Explanation:
as the they progress on consumption they obtain and use energy and by product will be lessened everytime for 100% to 10% 1% and 0.1%
what does belive mean ? people
Answer:
believe means accept (something) as true:feel sure of the truth of. if your talking in religion it's having faith that you believe is also a meaning.
Answer:
Believe is a certain characteristic that where one's dependent source is obligated to maintain the faith to be a major role in the execution of certain types of issues.
Uterine contractions that increase in intensity and regularity, and result in changes to the cervix are contractions of
Uterine contractions that increase in intensity and regularity, and result in changes to the cervix are contractions of Labour. This is further explained below.
What are Uterine contractions?Generally, Uterine contraction is simply defined as the contraction of the uterine muscles, This entails the compression or contraction of uterine muscles.
In conclusion, This is seen during childbirth.
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According to the cell theory, ____. Group of answer choices all living organisms are made up of one or more cells cells grow solely by an increase in volume all cells have a nucleus cells are not alive unless they are part of a multicellular organism cells arise spontaneously from nonliving matter
After so many failed attempts at school why was Charles Darwin finally successful studying at Cambridge
After so many failed attempts at school why was Charles Darwin finally successful studying at Cambridge because he finally able to get entry and clear the criteria.
Why did Darwin go to Cambridge University?After Darwin gave up medicine, his father set for him to learn to become a priest.
In 1828, Darwin went to Cambridge University to study for the priesthood, ganing a bachelor of arts degree at Cambridge University in 1831.
Darwin restarted to evolve his interest in rocks, fossils, animals, and plants.
Thus, he finally able to get admission and clear the criteria.
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