Answer:
Phosphorus contained in agricultural runoff
Explanation:
The term eutrophication refers to the enrichment of surface water with nutrients. This process is related to human pollution activities.
Eutrophication is the biological process that generates in water by an oversupply of nutrients or organic matter. This matter, mainly compounded with nitrogen or phosphorous, favors the phytoplankton multiplication (microscopic plants growing on the water surface) and other aquatic plants. This overgrowth leads to an enhance in primary productivity. Nitrogenated compounds might come from human and animal wastes, while phosphorated compounds might come from fertilizers and other chemicals used in agriculture, that penetrates the soil and reaches water bodies.
Little by little begin sedimentation is caused by the death of some vegetable organisms that sink in the bottom. These sediments rich in organic matter suffer decomposition in the presence of oxygen.
When oxygen disappears, anaerobic bacteria act and produce fermentation.
On the surface, plants and phytoplankton keep growing, creating a mantle that impedes the light reach deeper areas. The phytoplankton overgrowth on the water surface and the fermentation processes in the bottom originate toxic compounds that damage the animals. Animals die, creating more sediments in the bottom where there are anaerobic conditions.
Decomposition and fermentation processes increase, producing a bad smell.
The result of eutrophication is the stratification of the water mass:
• First superficial layer, the overgrowth of blue-green algae, produces toxins and interrupts the pass of light to deeper areas. The surface then becomes warmer.
• The second layer might have oxygen available for the animals.
• In the third layer, there is no oxygen, so life is impossible for animals or plants.
• In the fourth layer, there are animals and plant remains in the process of sedimentation.
• At the bottom, there are organic matter and anaerobic bacteria in charge of decomposition and fermentation, through which they produce toxic gases and smell.
Can someone plz help me with this question on science ASAP due today 50 points if you help
Answer:
i think the ans is C
Explanation:
hope it helps!!!
What are the sources of the energy that drives the earth’s processes?
Select one:
A. The sun and the earth’s interior.
B. The sun and chemical reactions.
C. The earth’s interior and chemical reactions.
D. The earth’s interior and gravity.
Answer:
Most of the energy in the Earth system comes from just a few sources: solar energy, gravity, radioactive decay, and the rotation of the Earth. Solar energy drives many surface processes such as winds, currents, the hydrologic cycle, and the overall climate system.
Explanation:
Hope it helps
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A researcher wants to learn more about inherited traits which part of a cell might she study to learn about inherited traits?
A: The nucleus because it contains chromosomes that hill genetic information responsible for inherited traits
B: The cell wall because it holds all of an individual's genetic information
C: The Mitochondria because it contains ribosomes that holds genetic information responsible for inherited traits
D: The cell membrane because it holds all of an individuals genetic information
BRAINIEST ANSWER
Just check my answers please
:))
Answer:
Sand, Gravel and Granite is the Answer.
Explanation:
if it helps don't forget to like and mark me
Answer:
ur correct
Explanation:
I just searched it up
What was Charles Darwin's area of study?
Answer:
The theory of natural selection was explored by 19th-century naturalist Charles Darwin. Natural selection explains how genetic traits of a species may change over time. This may lead to speciation, the formation of a distinct new species.
Hopefully u will satisfy with my answer of ur question..!!Have a nice day ahead dear..!!Please Mark on brainleast please..!!Answer:
Natural history/Geology
Explanation:
no links please!
Two ecosystems are compared in terms of population size and species diversity. One ecosystem has a large number of individuals but low species diversity, while the other ecosystem has fewer individuals but greater species diversity due to high mutation rates. Which of the following statements best describes how these two ecosystems would respond to an environmental stress such as drought?
The ecosystem with greater diversity is less dependent upon resources and would suffer less from the drought.
The ecosystem with greater diversity is more stable and would, therefore, be more likely to withstand the drought.
The ecosystem with more individuals is less likely to suffer because it is more productive and, therefore, more stable.
The ecosystem with more individuals is more likely to have members that are drought-resistant and will survive and reproduce.
Answer: I had the same problem in one of my exams. I think the answer is "the ecosystems with greater diversity is more stable and would, therefore, be more likely to withstand the drought.
Explanation:
I chose this because it seems like the most logical explanation.
"The ecosystems with greater diversity is more stable and would, therefore, be more likely to withstand the drought. Thus, option B is correct.
What is biodiversity?Biodiversity is considered as the variety of living things found in the various habitats, such as terrestrial, marine, and desert ones, as well as the ecological groups to which they belong.
The variety of the creatures present in an ecosystem, as well as their relative abundances, is referred to as biodiversity. It also depicts the various stages of organism organization.
In ecosystem there are thirteen different grass species present and in ecosystem Y 1 species of grass present, that is, ecosystem X has a greater amount of biodiversity. So, during the drought, the bison in ecosystem X are better able to survive.
Therefore, "The ecosystems with greater diversity is more stable and would, therefore, be more likely to withstand the drought. Thus, option B is correct.
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What will happen to Earth in the future if we continue to increase greenhouse gas emissions?
Answer:
If we continue to increase greenhouse emissions, more of it will build up in the atmosphere, meaning more of the Sun's infrared radiation will be trapped via the Greenhouse Effect. This will cause the planet to warm.
Enter the correct term in the blanks.
a. The circulatory system is made up of the heart plus all of the _______________________ and ___________________________________.
b. When we breathe, a large muscle called the _____________________ helps us draw oxygen into our lungs.
c. The ___________________________ filter our blood.
d. The right side of the heart pumps blood only to the ______________________ .
e. The human heart has _______________ chambers.
f. The top chambers of the heart are each called the _________________.
g. The bottom chambers of the heart are each called the ___________________ .
h. The liquid part of the blood is called ___________________________ .
i. The _________ system breaks down food for the body's cells.
j. Digestion begins in the ____________________with the teeth and _____________.
k. The liver produces ____________________, which acts on fat.
l. The ___________________ system is the body's garbage service.
m. The _________________________ are the main excretory organs.
Answer:
a. veins and arteries
b.diaphragm
c.kidney
d.lung
e.4
f.left auricle(atrium) , right auricle(atrium)
g.left ventricle, right ventricle
h.blood plasma
i.digestive
j.buccal cavity ,saliva
k.bile
l.excretory
m.kidneys
Explanation:
Various factors influences the fluidity of the phospholipid bilayer of the cell membrane. If we were to chart the composition of cell
membranes in organisms as we move north from the equator to higher latitudes around the Arctic circle, we would expect to find
phospholipids with
A)
fewer hydrophilic heads.
B)
fewer interspersed cholesterol molecules.
both saturated and unsaturated fatty acid tails.
D
an increase in the length of the fatty acid tails.
Answer:
D
an increase in the length of the fatty acid tails.
Explanation:
As average annual temperatures decrease, we would expect to find phospholipids within the cell membranes of organisms to have both saturated
and unsaturated fatty acid tails. Saturated fatty acids tails are arranged linearly, in a way that maximizes interactions between the tails and
decreases bilayer fluidity. Unsaturated fatty acids, on the other hand, have more distance between the tails, fewer intermolecular interactions and
more membrane fluidity. Longer tails and decreased cholesterol also decrease fluidity
A bird flies by moving its wings up and down. Which two systems are most directly responsible for the movement of a bird's wings?
A bird flies by moving its wings up and down. Which two systems are most directly responsible for the movement of a bird's wings?
A.
respiratory and muscular systems
B.
skeletal and digestive systems
C.
respiratory and digestive systems
D.
skeletal and muscular systems
Answer:
D
Explanation:
skeletal and muscular systems
GIVING BRAINLIEST!!!!!
give 2 examples of muscles & their function
Answer:
Deltoid - Your deltoid muscles help move your shoulders
Quadriceps - Helps move your legs
Hope this helps :3
Explanation:
Answer:
I'm just going to go ahead and give you the three types of muscle!
Skeletal, Cardiac, and Smooth Muscle.
Explanation:
Skeletal Muscle:
The muscles attached to your bones that help pull and push when you move.
Cardiac Muscle:
Heart muscle that keeps the blood pumping. Is very thick and strong, as well as elastic to ensure smooth blood flow.
Smooth Muscle:
Essentially muscles in the other areas of your body, especially internal organs. For example, the muscles in your digestive system that involuntarily move food through your bowels are smooth muscles.
This is a basic picture on the three types! Hope that helped :)
if you want brainlist answer my questions and you will get it
Answer:
ti teg lliw uoy dna snoitseuq rewsna tsilniarb tnaw uoy fi
Explanation:
mirror
How does gas exchange occur in plants?
Plants obtain the gases they need through their leaves. They require oxygen for respiration and carbon dioxide for photosynthesis.
Explanation:
The gases diffuse between the cells spaces of the leaf through pores, which are normally on the underside of the leaf - stomata. From these spaces they will diffuse into the cells that require them.
how does respiration take place in insects?
Answer:
please give me brainlist and follow
Explanation:
Instead of lungs, insects breathe with a network of tiny tubes called tracheae. Air enters the tubes through a row of holes along an insect's abdomen. The air then diffuses down the blind-ended tracheae. Since the biggest bugs have the longest tracheae, they should need the most oxygen to be able to breathe.
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PLEASE WRITE A SUMMARY ABOUT THE LAW OF UNIVERSAL GRAVITATION
Answer:
When NASA sends rockets into space, they have to contend with a lot more than just astronaut training, fuel loads, and an overall mission objective. The astrophysicists who plan space travel must also contend with fundamental laws of physics. Chief among these is Sir Isaac Newton’s law of universal gravitation.
Explanation:
In science, most concepts are related to other concepts. Which of the following is most closely related to the law of conversion of mass? EXPLAIN WHY ANSWER IS CORRECT
a. When rocks are deposited in layers, the oldest layer is on the bottom.
b. Pressure from a gas increases as the volume increases.
c. Energy can neither be created nor destroyed.
d. The force of gravity decreases as distance is increased.
Answer:
Explanation:
a
(8.9B) A student made a chart to classify plates by the types of boundaries. What crustal
feature is most likely found between the South American and African plates? *
A Folded mountain
B Ocean trench
C Mid-ocean ridge
D Fault
Answer:
folded mountain
hope it will help you
The crustal feature is most likely found between the South American and African plates is folded mountain. The correct option is A.
What is folded mountain?When two or more of the tectonic plates of Earth are forced together, fold mountains are formed.
Rocks and debris are bent and folded into rocky outcrops, hills, mountains, and entire mountain ranges at these interacting, compressing limits. Orogeny, a process, is what produces fold mountains.
While having a narrower width than their length, fold mountains are very long.
Concave and convex slopes are typically present on opposite sides of fold mountains. Most fold mountains are located on the edges of continents that face the ocean.
A student created a chart to categorize plates according to the different boundary types. The folded mountain is most likely the crustal feature that lies between the South American and African plates.
Thus, the correct option is A.
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Help me please !!! :)
Answer:
they both have oxygen in the atmosphere
Explanation:
The larvae of potato beetles cover themselves in their own feces to avoid being consumed by predators. What system produces feces?
Answer:
Explanation below
Explanation:
Hemisphaerota cyanea, also known as the palmetto tortoise beetle, is a type of leaf beetle that cover themselves with their own feces, just to persuade most predators to pass them by. This form of outrageous defense, developed by the crafty beetle, was discovered by biologists at the Cornel university.
The feces comes out of the hindgut of the beetle, fashioned like golden strands, which can be used to protect the vulnerable body of the beetle.
Which of these oceans remain frozen accept for part of the year, when the edges melt?
Question 4 options:
Indian
Southern
Pacific
Artic
Atlantic
Answer:
the answer is arctic
plzz mark me as brainliest
The ocean that remain frozen accept for part of the year when the edge melt is : ( D ) Arctic Ocean
The Arctic oceanThe arctic ocean stays frozen most times of the year until when the edge of the ocean melts. the artic ocean keeps the polar region of the earth cool and it remains frozen for up to 8 months of the year.
Hence we can conclude that the Ocean that remain frozen for most part of the year is Artic ocean.
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A dominate trait is the weaker, stronger, neither weak or strong, trait.
Answer:
strong .
Explanation:
Because domnat trait always dominant recessive genes
Please help me im stuck on this question!!! Please hurry !!
Answer:
one of the smallest stars
Explanation:
there are trillions of stars and most of them are millions of times the size of our sun
Which of these Is NOT a type of habitat?
A) a desert
B) a mountain
C) a rainforest
D) the world
Answer:
D
Explanation:
Its kinda hard to explain but the world is more like a planet(?) and not a type of habitat since anything can live on it
Answer:
D- the world
Explanation:
1) Define Automatic, central, peripheral nervous system.
2) Define Brain
3) Describe Red blood cell with its symptoms, preventive measure, and disease caused by it.
Answer:
sorry I just know one 2
Explanation:
A brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It is located in the head, usually close to the sensory organs for senses such as vision. It is the most complex organ in a vertebrate's body.
which symptom is not included in the diagnosis of water intoxication?
Hyponatremia
Loss of electrolytes
Confusion
Cell shrinkage
What will happen if both the biceps and triceps muscles contract at the same time?
Answer:
the biceps and triceps muscles work together to allow you to bend and straighten your elbow. When you want to bend your elbow, your biceps muscle contracts, and, at the same time, the triceps muscle relaxes.
Explanation:
PLS HELP ME AND I WILL MARK BRAINIEST
Answer:
1. Loan
2. Financial
3. Flexible
4. Future
5. Interest
Explanation:
Why would we not have animals without plants?
try to create an original enough answer! ^^ Thank you!
Answer: Humans and animals use the oxygen (O2) in the air for their energy process and produce CO2 as waste. A plant does the exact opposite. ... If there were no plants on the planet we wouldn't be able to breathe. Humans in particular, however, also produce other waste
Explanation:
Answer 3 questions please, thank you!
What resource below is not essential but is important to how we live our lives on Earth?
A. Water
B. Oxygen
C. Fossil Fuels
D. Plants
Which of the following is most important to cultivating food in order to sustain human growth?
A. Domesticating animals
B. Agriculture
C. Mining
D. Manufacturing
Which of the following involves making man-made products from natural resources?
A. Agriculture
B. Mining
C. Manufacturing
D. Urbanization
Answer: fossil fuels
Explanation: because we don’t need them but they help us life
can someone help me please?
Answer:
for the first one, its most likely light morph, for the second one dark morph
Explanation:
Birds are sight hunters so that means that they look for their food so in this case the moths on the dark tree that has a dark morph will not be seen but the moth with light morphs on a dark tree will be seen and eaten, and the opposite with light trees but if the tree is speckled the speckled moth will survive depending on the color of the tree. I hope this wasn't too confusing for you.