Answer: Lichens affect every species in the ecosystem, in 2013 Russia had a dramatic lichen die off which caused 61,000, 20% of the entire reindeer population to die from starvation. And with fewer deers, the bears and wolves also suffered from the loss of lichens and if it takes a long time for lichens to grow back in an ecosystem, animal declines may take years if ever to be corrected. Lichens serve as a basis for several food chains, especially in artic communities.
The argument which shows why lichens are necessary to establish a new ecosystem is as follows;
Lichens are known to enable algae to live all over the world in many different climates.
On this note, lichens also provide a means to convert carbon dioxide in the atmosphere through photosynthesis into oxygen, a process required by all to survive.
Additionally, lichens provide us with valuable information about the environment around us.
On this basis, lichens are important for establishing a new ecosystem after an extreme disturbance.
Read more on lichens and the ecosystem;
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Mitosis makes up ALL of the cell cycle?
How can a material at a certain temperature have all of its molecules at the same energy?
Please help me out!
Which of the following is NOT true about the chromosomes in your body?
-Include 46 total chromosomes
-Include 2 sex chromosomes
-Exist in 46 pairs
-Exist in 23 pairs
Answer:
Exist in46 pairs
Explanation:
regular reflection is the ________reflection of light on a(n)_________surface.
Answer:
1. parallel ,2. smooth
Explanation:
hope it helps you
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Which feature is forming?
Oceanic crust
Continental
crust
Lithosphere
Lithosphere
Asthenosphere
Answer:
An island
Explanation:
for me i got it right
Explain the statement “all cells perform respiration but not all perform photosynthesis”.
All cells perform respiration but not all perform photosynthesis because of the absence of the plastids.
Respiration:
It is a process by which organisms produce energy by degrading glucose.
It is occur in mitochondria in eukaryotes and in plasma membrane in prokaryotes.
Photosynthesis-
It is a process by which photoautotrophic organisms produce glucose from the Carbon dioxide and water by capturing the sunlight using chlorophyll.
Chlorophyll is found in the plastid of plants and algae.
Therefore, all cells perform respiration but not all perform photosynthesis because of the absence of the plastids.
To know more about chlorophyll,
https://brainly.com/question/13500580
What does the term Pangaea mean?
Answer:
Pangea refers to the one, large, solid land mass that is believed to have existed before the continents divided.
Explanation:
Pangea is often the explanation for tectonic plates, as they are believed to have been a by-product of the split of Pangea well over a million years ago.
You see everyone running and screaming, what will you do?
A. Run to see what is going on only to discover that there is a tsunami coming your way.
B. Grab gun and cuss at everyone and shoot as many people as possible.
C. Get naked and do whatever you want! <3
D. Tell the people to run the other direction saying that they are actually running towards the tsunami as you lie to them.
E. Grow wings and fly and watch all the people to die. :)
Answer:
Grow wings and fly and watch all the people to die. :)
LOLOLOLOLOLOLOL
____is a restriction to the flow of electrons
Answer:
Impedance.
Explanation:
Conductors allows the flow of electrons and Impedance restricts it.
*20 POINTS* Need help ASAP please!
Evolution occurs only when the conditions of Hardy-Weinberg equilibrium are not satisfied. What are the conditions for maintaining Hardy-Weinberg equilibrium in a population of beetles for evolution? Drag each sentence into the correct box.
Conditions for Hardy-Weinberg equilibrium Conditions for evolution to occur
Answer: CONDITIONS FOR HARDY
No mutations should appear in the beetle population because new alleles would change the allele frequencies
There should be random mating among beetles
There should be no natural selection on the beetle population
The population of beetles must be large enough so that genetic drift is avoided
There should be no migration of beetles into or out of the population.
CONDITIONS FOR EVOLUTION-
Natural selection favors green beetles
Purple mutants appear among the Beatles
Preferred mates are red, so these individuals reproduce
Large numbers of brown beetles were killed in a forest fire
A significant number of yellow beetles left.
Explanation: I only added about half the sentence of each answer because it’s to long.
Describe how Pangaea first split apart around 200 million years ago.
Answer:
Pangea was the world's supercontinent, with its splitting came preliminary continents of today.
Explanation:
The splitting occurred due to the movement of tectonic plates, where plates spread apart and moved the landmasses with it.
What is the purpose of crossing-over in meiosis?
A.to create mutations in gametes to increase variation
B.to randomly separate homologous chromosome pairs
C.to reduce the number of chromosomes in gametes by one half
D.to create new combinations of DNA on homologous chromosomes
Answer:
A
Explanation:
During prophase I of meiosis, crossing over that occurs between non-sister chromatids of homologous chromosomes pairs occurs at chiasma results in the exchange of genetic material. This produces new genetic combinations in gametes leading to variation.
Which statement describes how the atmosphere gains energy by convection?(1 point)
Air warmed by the ground rises.
The ground warms the air just above it.
Solar energy warms gases that make up the air.
Energy moves from the clouds to the air.
The statement that describes how the atmosphere gains energy by convection is : Air warmed by ground rises ( A )
The rising warm air from the ground into the atmosphere explains the exchange of heat energy from the ground into the atmosphere through convection and this possible due the variation in density and temperature of the ground air and the atmospheric air.
What is ConvectionConvection is the transfer of heat energy through the movement of a medium such as air or water from one region to another. convection can occur as :
Natural convection Forced convectionHence we can conclude that The statement that describes how the atmosphere gains energy by convection is Air warmed by ground rises
Learn more about convection : https://brainly.com/question/9382711
During the day when the sun is shining the ground gets warm mainly as a result of
Answer:
The ground becomes warm by the effect of sunlight.
Explanation:
This is because the sun radiates huge amount of heat from its surface. This heat reaches the earth in the form of light energy. This heat is absorbed by the earth's surface and makes it warm.
Which claim is correct?
Only genes determine our traits
Only dna determines our traits
Both, genes and dna determine our traits
In which of the following would competition not occur?
A Rabbits grazing in a field
B Owls and foxes hunting for mice
с Daisies and dandelions growing in a lawn
D Algae and fish in a loch
What activities can increase the amount of atmospheric CO2?
Answer:
Human activity is the main cause of CO2
What is an extreme disturbance to any ecosystem? (1 point)
Elk overgrazing
Hurricanes
Coral bleaching
Extreme temperature change
When an ecosystem is disturbed by fire or toxic chemicals, it affects (1 point)
One type of habitat in the ecosystem
One type of food source in the ecosystem
Living things in that ecosystem
Only a particular species in that ecosystem
If deer are not hunted every season, a potential result is (1 point)
The predator population will decrease
The deer population will decrease
The plant population will increase will increase
The smaller herbivore population will decrease
An example of a severe disruption to an ecosystem is (1 point)
A seasonal flooding of a river
A thunderstorm that knocks down some trees
Repurposing a building in a downtown area
The loss of a river system due to contamination
If an ecosystem irreversibility destroyed, species unable to travel or adapt will (1 point)
Find a new food source
Die out in the area
Find additional mates
Grow in population
Answer:
1.) extreme temperature change
2.) living things in that ecosystem.
3.)the smaller herbivore population will decrease.
4.) the loss of a river system due to contamination.
5.) die out in the area.
Explanation:
Just took the QC
What can be considered as an extreme disturbance to any ecosystem is :extreme temperature change.
Whenever, there is a disturbance in terms of fire or toxic chemicals to ecosystem, then : living things in that ecosystem.
In a case, whereby no one hunt deer, then there would be decrease in smaller herbivore population.
loss of a river system due to contamination can be considered as a of a severe disruption to an ecosystem.
When there is irreversibility destroying of ecosystem, then :species unable to travel or adapt will die out in the area.
An ecosystem can be regarded as geographic area which encompass plants, animals as well as weather relate together.One of disturbance that occurs in an ecosystem is extreme temperature.Learn more at:
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What is the ONLY way a female can be affected by a sex-linked trait?
Answer:
they can only be affected if their father is affected
Which statement explains the movement of energy through aerobic
cellular respiration? Choose the correct answer.
O Heat energy is absorbed as chemical potential energy is transferred from
oxygen molecules to ATP molecules.
O Heat energy is released as chemical potential energy is transferred from
oxygen molecules to ATP molecules.
O Heat energy is released as chemical potential energy is transferred from
glucose molecules to ATP molecules.
Answer:
Energy in the form of heat is released as chemical potential energy is transferred from glucose molecules to ATP molecules
The statement that best explains the movement of energy through aerobic cellular respiration is as follows:
Heat energy is released as chemical potential energy is transferred from glucose molecules to ATP molecules.Thus, the correct option for this question is C.
What is Aerobic cellular respiration?Aerobic cellular respiration may be defined as a type of biological process through which the molecules of glucose are broken down into carbon dioxide and water in the presence of oxygen with the liberation of some amount of energy. The derivation of energy is the fundamental mechanism of this process.
The mechanism initiate after capturing the heat energy from the and transforming it into chemical energy through the process of photosynthesis which synthesizes glucose. This glucose is then transferred to its potential energy to the ATP molecules in the presence of oxygen.
Therefore, heat energy is released as chemical potential energy is transferred from glucose molecules to ATP molecules. Thus, the correct option for this question is C.
To learn more about Cellular respiration, refer to the link:
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#SPJ2
What is Carbon Dioxide?
A medicine
B candy
C colorless gas
D special kind of steel
Answer:
Colorless gas
Explanation:
Experiment 2:
Compare the circumference of the balloon before and after freezing. What is the percent increase in this measurement?
Answer:
17%
Explanation:
Answer:
17%
Explanation:
1. What were the conditions on the planet when life began?
Answer: The early Earth had no ozone layer and was probably very hot. The early Earth also had no free oxygen. Without an oxygen atmosphere very few things could live on Earth. Anaerobic bacteria were probably the first living things on Earth.
Which is an example of a ray-fin fish?
lungfish
O coelacanth
O shark
salmon
Explanation:
its showing all but salmon so im not sure,sorry, still trying
Answer: Salmon
Explanation:
bones
Match each description with the correct ecosystem.
This ecosystem experiences sudden changes in water level and temperature.
This ecosystem contains a mix of fresh water and salt water.
This ecosystem supports many plants, which provide food for schools of fish.
Answer:
1 - B or intertidal zone
2 - A or estuary
3 - C or neritic zone
Explanation:
These are the correct answers, I took the test on edge, have a great day!!
Answer: B, A, C,
Explanation:
I did it and got it right
Which process involves starting with a DNA message and ending with mRNA?
a. replication
b. transcription
c. translation
d. translocation
Please help me with this biology question...........
Chloroplasts are present in some plant cells only Give an example of plant cells that do not contain chloroplasts and explain why
Answer:
Chloroplast is specific to plant cell because plants are the autotrophs which can prepare their food by conversion of light energy to chemical energy. It is the vital photosynthetic pigment in leaves as it involves the conversion of light energy into chemical energy.
hope it is helpful.
Answer:
Please let me no if you still need help on this
Explanation:
I will glady help!
PLZ HELP!! Which expels solid waste from the body? A. Liver. B. Large intestine. C. Pancreas. D. Anus
Answer:
anus LKEJKEGWHRJK
Explanation:
Answer:
I think it is D) Anus
Explanation:
Solid waste leaves the body through the anus
Hope that helps
What form of energy are autotrophs converting to sugar during photosynthesis?
1. Sunlight
2. biomass
3. Water
4. Glucose
Answer:
chemical energy
In photosynthesis, solar energy is harvested and converted to chemical energy in the form of glucose using water and carbon dioxide.
1. Sunlight (but in g00gle it says this: chemical energy
In photosynthesis, solar energy is harvested and converted to chemical energy in the form of glucose using water and carbon dioxide.)
Which element is so reactive it is found in nature only in compounds?
Group of answer choices
Na (sodium)
Au (gold)
O (oxygen)
Fe (iron)
