Explain the term “trophic cascade”

Answers

Answer 1

Answer:    Trophic cascades are powerful indirect interactions that can control entire ecosystems, occurring when a trophic level in a food web is suppressed.  A top-down cascade is a trophic cascade where the top predator controls the primary consumer population.

Explanation:


Related Questions

2. What are the two types of ecological succession?

Answers

Answer:

There are two main types of succession, primary and secondary. Primary succession is the series of community changes which occur on an entirely new habitat which has never been colonized before. For example, a newly quarried rock face or sand dunes.

Explanation:

Answer:

Ecological succession is a process of change in ecosystems that takes place over time, and that we can observe both in time and in space. ... There are two types, the primary sequence and the secondary sequence.

"I hope it helps you it was a pleasure to help you".

Explanation:

Why did the deer start to avoid certain areas of the park, like valleys and gorges?
a They could be trapped easily in those areas
b Their food source ran out of those areas
c Humans built shopping malls and tourist attractions in those areas
dThey did not avoid those areas, they flocked to them

Answers

Answer: A    I hope this helps

Explanation:

What is the role of DNA in an organism ? how is dna related to reproduction​

Answers

Answer:

DNA plays a role in the growth and reproduction of organisms.The function of DNA is to store all of the genetic information that an organism needs to develop, function, and reproduce.DNA contains the instructions needed for an organism to develop, survive and reproduce. 

Help, a very strong form of cocaine is ______.

Answers

Answer:

baking soda

Explanation:

None I hope this helps you

Which answer choice correctly lists the flow of food through the GI tract (gastrointestinal tract) of the digestive system?

mouth-- stomach-- small intestine-- large intestine-- rectum

rectum-- large intestine--- small intestine--- stomach--- esophagus-- mouth

mouth-- esophagus-- stomach-- small intestine--- large intestine--- rectum

mouth-- stomach-- small intestine-- esophagus--- large intestine-- rectum

Answers

This is hard ........!!!!!!

Answer:

mouth--esophagus--stomach--small intestine---large intestine---rectum

Explanation:

~+*PLEASE ANSWER ASAP! BRAINLIEST AND 20 PTS!*+~

How does reproductive isolation differ in sympatric modes and allopatric modes of speciation?

Answers

Answer:

In allopatric speciation the groups are reproductively isolated and diverge due to a geographic barrier. In sympatric speciation, reproductive isolation and divergence occur without geographic barriers, for example polyploidy.

"I hope and my information serves you"

Explanation:

1. Which of the following nonrenewable resources cannot be recycled?
A. copper
B. iron
C. aluminum
D. oil

Answers

D.Oil cannot be recycled

Answer:

B

Explanation:

is the trans pecos ecoregion of texas considered a desert ? true or false

Answers

Answer:

false

Explanation:

What type of mutation is taking place in this diagram?

Answer options in the photo

Answers

Answer:

Inversion, because it's switched to the opposite order. d e f becomes f e d

Explanation:

PLEASE HELP I REALLY NEED THIS DONE FAST!! BRAINLIEST!!! 50 POINTS PER PERSON!!! I WILL MARK BRAINLIEST TO WHOEVER GIVES A GOOD ANSWER THAT HAS MET THE REQUIREMENTS OF THE INSTRUCTIONS!!!
You will write a position paper (your Own opinion) expressing whether you are FOR or AGAINST the building of roads in Rainforests.

You might need to do a little research on Rainforests but if you already have knowledge on this topic then that's great. Find out why people have cut down trees and ruined the Rainforests and why they built roads in it. This is an Opinion paper, so there is no wrong answer if you pick either side but please still make the answer a good one. Just express your opinion on whether you are FOR or AGAINST the building of roads in the rainforest. It has to be 2 paragraphs of 4 sentences or more.
Please remember I WILL BE GIVING BRAINLIEST TO THE BEST CORRECT AND GOOD ANSWER!!!

Answers

Answer:

We live in an era of unprecedented road and highway expansion — an era in which many of the world’s last tropical wildernesses, from the Amazon to Borneo to the Congo Basin, have been penetrated by roads. This surge in road building is being driven not only by national plans for infrastructure expansion, but by industrial timber, oil, gas, and mineral projects in the tropics.

Few areas are unaffected. Brazil is currently building 7,500 kilometers of new paved highways that crisscross the Amazon basin. Three major new highways are cutting across the towering Andes mountains, providing a direct link for timber and agricultural exports from the Amazon to resource-hungry Pacific Rim nations, such as China. And in the Congo basin, a recent satellite study found a burgeoning network of more than 50,000 kilometers of new logging roads. These are but a small sample of the vast number of new tropical roads, which inevitably open up previously intact tropical forests to a host of extractive and economic activities.

Explanation:

Answer:

Deforestation on rainforests and other natural environments can have a devastating effect on the whole world. First, it leads to the loss of many animal and plant species, decreasing the biodiversity that our planet enjoys. It can also lead to the degradation of soil and to erosion, as trees and plants usually hold the ground in place and provide necessary nutrients to it. Deforestation also has a negative effect on climate change, as trees are able to absorbe an enormous amount of greenhouse gas emissions. Without them,  the greenhouse effect is amplified, worsening climate change.

Explanation:

Which one is the correct answer?

Answers

Answer:

pretty sure it is non contact forces

Explanation:

no touchy-touchy involved so yeah

Non contact forces is the answer of your question.

A non-contact force is a force which acts on an object without coming physically in contact with it. A non-contact force is a force applied on an object by another body without being in direct contact with the object.

Hope it will be helpful to you. ..

Name the MAIN abiotic and biotic factors which affect prairie ecosystems
and describe their effects on those systems.

Answers

Answer:

Aboitic means non living and biotic means living.

Explanation:

For example a bench is aboitic because it is not living but once was. Something biotic would be grass because it is living presently.


What is the branch of earth science that puts past events on earth in order by time?
A) geology
B) geography
C) ecology
D) chronology

Answers

Answer: C

Hope this helps

Answer:

(c) ecology

Explanation:

What is function of the cell membrane ?

Answers

The function of the cell membrane is to protect the cell from its surroundings, (kind of like a wall)

Which of the following year graphs represent hours of daylight and solar energy at 45° S?

Answers

Answer:

The answer is D

Explanation:

Which of the following are examples of short-term, human-induced environmental changes? Select three answer choices.

mass extinction
global warming
deforestation
ozone layer destruction
pollution

Answers

Answer:

deforestation

pollution

mass extinction

Explanation:

all three caused by humans

Answer:

mass exinction, deforestation, pollution

Explanation:

Tracey was learning about structural organization in animals. What level of structural
organization BEST describes an egg?
A. a cell
B. a tissue
C. a system
D. an organ​

Answers

Answer:

A

Explanation:

Egg cell

The level of structural organization which best describes an egg is: A. a cell.

A cell can be defined as the fundamental (basic) structural, functional, and smallest unit of life, that is typically found in all living organisms such as animals.

The structure of an egg is similar to those of cells found in living organism, which are structurally layered with various cell organelles.

An egg shell is selectively permeable because it acts as an outer membrane just like in living cells to prevent unwanted materials from going into the egg.

In conclusion, the level of structural organization in animals cells can best be describe by using an egg.

Read more: https://brainly.com/question/19559847

Leslie argues that an organism called a Euglena is a plant because it is eukaryotic, has a nucleus, makes its own food, and is unicellular.

Where is Leslie’s error?

Plants do not make their own food.
Plants are multicellular.
Plants are prokaryotic.
Plants do not have a nucleus.

Answers

Error: Plants are multicellular.
Explanation: Protoctists are known as the dustbin kingdom because they can’t be classified as plants, animals or fungi and they are mostly unicellular microorganisms. Some are known to be more plant-like while others are known to be more animal-like.Euglena is not a plant because it’s a plant-like protoctist.

Answer:

B. Plants are multicellular.

Explanation:

Describe how gravitropism in roots is different from gravitropism in shoots.

Answers

Answer:

Gravitropism is the movement or growth of a plant in response to gravity. ... Plant shoots demonstrate negative gravitropism since they grow in the opposite direction of gravity. Gravity is sensed by specialized cells called statocytes, which have statoliths that sink inside the cell.

Explanation:

If you crossed a male BB (brown eyes) with a female bb (blue eyes), how many of the offspring would have brown eyes? BB x bb Make a prediction or draw a Punnet square on a separate sheet of paper. *
A. 0%
B. 25%
C. 50%
D. 75%
E. 100%

Answers

E. 100%

if you cross BB and bb all of the squares would contain on B (that are brown eyes)

What’s the meaning of existence

Answers

That which exists, a being, a creature, an entity.

Answer: Existence definition: The existence of something is the fact that it is present in the world as a real thing. Or The noun existence can be used many different ways, but it always has to do with being alive or with simply "being”.

Explanation:

Existence is the state of being alive or being real. For example, you and your best friend disagree about the existence of Bigfoot if you think it's real and your friend doesn't. Existence is the state of being alive or being real. For example, you and your best friend disagree about the existence of Bigfoot if you think it's real and your friend doesn't.


Body systems in the human body work together to support the essential life functions of the body. The urinary system interacts with the cardiovascular system in several significant ways. Which of these is NOT an accurate interaction between the two body systems?

A) The kidneys secrete an enzyme called rennin that helps control blood pressure.
Eliminate
B) The kidneys filter metabolic waste products and toxins from blood for excretion from the body in urine.
C) The kidneys excrete a great amount of sodium and water helping control sodium concentration and blood pressure.
D) The kidneys secrete erythropoietin, a hormone which stimulates the production of white blood cells in the body.

Answers

Answer:

a

Explanation:

the kidney secretes an enzyme called rennin that helps to control blood pressure is not true the kidney does not secret rennin

What is the origin of the Slate breed?
O
United States
O Mexico
O Asia
O Germany​

Answers

Answer:

2. Mexico

Explanation:

"The blue slate turkey is a rare, heritage turkey; turkeys were first domesticated in Mexico over 2000 years ago."

P.S Only source I could find.

Explain why DNA is called a molecular clock.

Answers

The molecular clock is a figurative term for a technique that uses the mutation rate of biomolecules to deduce the time in prehistory when two or more life forms diverged. The biomolecular data used for such calculations are usually nucleotide sequences for DNA or amino acid sequences for proteins.

Explanation:

this is the condition in which one living organism serves as a food source for another

Answers

Answer:

Producer

Explanation:

A producer provides food for other organisms and a consumer is an organism that eats the producer.

what are the advantages of housing a telescope inside mountain of observatories?​

Answers

Mountain tops are high in the atmosphere, and there is less atmosphere above them, so it is easier to see stars with less atmosphere.

the diagram shows three steps in the clotting process.
Which lists the clotting process in the proper order?
o А, С, В
ОВ, А, С
o С, А, В
е В, С, А​

Answers

Answer:

В, С, А​

Explanation:

The process of clotting is known as the hemostasis which takes place in three steps: the vascular spasm, the formation of a plug of platelets and the coagulation.

In the given question, step B shows the process of vascular spasm in which the vascular blood vessels becomes constricted due to injury. After this, the platelets present in the blood starts accumulating at the site of injury. These platelets stick together and form a plug-like structure at the site of injury.

Later, step A takes place that is fibrin protein present in the blood starts forming a mesh-like structure which does not allow the bleeding and this process is known as coagulation.

Thus, the selected option is the correct answer.

identify one organism in your locality and explain its mechanism of adaptation​

Answers

Answer:

Rats

Presence of tails for balancing, presence of digits for burrowing into the soil,Eyes for sight,Nose for perceiving, limbs for movement, practice cannibalism to control it's population, fur for temperature regulation, ears for hearing,

In a certain state, electricity is generated by using the earths heat. Wells drilled and natural steam is taken out through pipes. This natural steam powers the generator and the electricity generated. What type of energy is being used and what type of power plants are set up for harnessing this renewable energy?

Answers

Answer:

Geothermal

Explanation:

The geothermal energy is generated by the Earth's core that is a region with extremely high temperatures. The heat makes the geothermal power plants to work and thus generate energy from it.

(a) If a particular gene is located on the Z chromosome of this lizard species, describe why a lizard with a ZW genotype has a greater probability of expressing the recessive phenotype for the trait than a lizard with the ZZ genotype does.

Answers

Answer:

If there is no dominant allele for a trait present on a homologous chromosome to mask the recessive allele, the recessive phenotype will be expressed. In this case, the gene is located on the Z chromosome. In an individual with a ZW genotype (female) there is no homologous Z partner, meaning whatever allele is present on the solitary Z chromosome will be expressed.

Explanation:

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