Answer: 1. Water covers about 71% of the earth's surface. 97% of the earth's water is found in the oceans (too salty for drinking, growing crops, and most industrial uses except cooling). 3% of the earth's water is fresh. Only about three percent of Earth's water is freshwater. Of that, only about 1.2 percent can be used as drinking water; the rest is locked up in glaciers, ice caps, and permafrost, or buried deep in the ground. Most of our drinking water comes from rivers and streams. Earth's water is (almost) everywhere: above the Earth in the air and clouds, on the surface of the Earth in rivers, oceans, ice, plants, in living organisms, and inside the Earth in the top few miles of the ground. 2.The sun, which drives the water cycle, heats water in the oceans. Some of it evaporates as vapor into the air. Ice and snow can sublimate directly into water vapor. ... The vapor rises into the air where cooler temperatures cause it to condense into clouds. 3. Historically, there are four named ocean basins: the Atlantic, Pacific, Indian, and Arctic. However, most countries - including the United States - now recognize the Southern (Antarctic) as the fifth ocean basin. The Pacific, Atlantic, and Indian are the most commonly known. Atlantic Ocean, body of salt water covering approximately one-fifth of Earth's surface and separating the continents of Europe and Africa to the east from those of North and South America to the west. 4. Marine creatures in shallower waters provide nutrients to deep-sea environments, as dead organisms “rain down” to the bottom. Fewer organisms in shallow waters means less food at the bottom. Features of the ocean include the continental shelf, slope, and rise. The ocean floor is called the abyssal plain. Below the ocean floor, there are a few small deeper areas called ocean trenches. Features rising up from the ocean floor include seamounts, volcanic islands and the mid-oceanic ridges and rises. 5. Ocean currents can be caused by wind, density differences in water masses caused by temperature and salinity variations, gravity, and events such as earthquakes or storms. ... These currents move water masses through the deep ocean—taking nutrients, oxygen, and heat with them. By moving heat from the equator toward the poles, ocean currents play an important role in controlling the climate. Ocean currents are also critically important to sea life. They carry nutrients and food to organisms that live permanently attached in one place, and carry reproductive cells and ocean life to new places. Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, ocean currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth's surface. Some currents flow for short distances; others cross entire ocean basins and even circle the globe. By moving heat from the equator toward the poles, ocean currents play an important role in controlling the climate. Ocean currents are also critically important to sea life. 6. Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. As wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest. ... The gravitational pull of the sun and moon on the earth also causes waves. Ocean waves are caused by wind moving across the surface of the water. The friction between the air molecules and the water molecules causes energy to be transferred from the wind to the water. This causes waves to form. brainliest??
Explanation:
Four children in a family have four different blood types. If the father has
type A blood, which blood genotype best represents the mother?
is the result of changes in a population over time due to the process of natural selection.
Answer: Evolution is a process that results in changes in the genetic material of a population over time. Evolution reflects the adaptations of organisms to their changing environments and can result in altered genes, novel traits, and new species.
Explanation: my answer is an explanation in itself
Which plant parts are in leaves? (Select all that apply.)
1. endosperm
2. xylem
3. root hairs
4. phloem
Answer:
4. Phloem
Explanation:
Phloem, also called bast, tissues in plants that conduct foods made in the leaves to all other parts of the plant. Phloem is composed of various specialized cells called sieve tubes, companion cells, phloem fibers, and phloem parenchyma cells. - Britannica
Hope this helps! Have an Amazing day!!
What is the
current focus of conservation
biologists worldwide?
Farmers are often at the mercy of
which of the following -- which is totally
out of their control?
A. Prices
B. Laws
C. Disease
D. Weather
Answer:
Weather
Explanation:
Hope this helps!
PLEASE HELP I NEED HELP
Below is the base sequence for one strand in a short segment of DNA.
CTG ATC
A population is ______.
A. all organisms in an area that belong to the same species
B. an individual living thing
C. all of the different species living together in an area
D. all of the biotic and abiotic non-living factors in an area
Will give brainliest to people that help me with these
Answer:
here you go hope it helps you with your question
Explanation:
because nitrogen is required for growth it is considered an essential nitrate so true
converting nitrogen from a gas to a useable form by bacteria is denitrification is true two
the movement of chemicals on a global scale from abiotic through biotic parts of the environment is a lithospheric process true
22. An individual who participates in a long-distance run on a hot day will produce large
quantities of sweat. As a result of the excessive sweating, the amount of urine
produced by the kidneys will change.
How will the kidneys respond to help the individual's body maintain homeostasis?
The kidneys will decrease urine production so the body can maintain blood pH and allow the body to cool by excessive sweating.
What is Homeostasis?
Homeostasis refers to an organism's ability to regulate various physiological processes to keep internal states steady and balanced.
When an individual is running long-distance on a hot day will produce a large quantity of sweat. The kidney plays an important role here to retain the amount of urine and excessive sweat is produced to maintain the temperature of the body as well as the pH of the blood.
Therefore, the kidneys will decrease urine production so the body can maintain blood pH and allow the body to cool by excessive sweating.
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The diffrence between prokaryotic and eukaryotic organism
Answer:
Explanation:
prokaryotic organism does not have nuclear membrane.
eukaryotic organism have nuclear membrane.
Plz help me well mark brainliest if correct!..
Answer:A
Explanation:
hard exoskeleton
Parallel Flow
Which filter regions have a concentration gradient
between the blood and dialysate?
Check all that apply.
1
11
IN
V
Submit
The filter regions that have concentration gradients between the blood and dialysate are ; ( I and II ).
The filter regions ( I and II ) both have concentration gradients because of the concentration difference between the Urea contained in the blood and the Urea concentration found in dialysis
The difference in concentration gradients of the filter regions between the blood and dialysate leads to the diffusion of Urea in blood into the dialysis fluid with a lower concentration of Urea.
Hence we can conclude that The filter regions that have concentration gradients between the blood and dialysate are ; ( I and II ).
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Although some data related to your question is missing attached below is the missing data
When penicillin was first introduced, it was very effective in destroying most
of the bacteria that cause gonorrhea. Today, certain varieties of this
bacterium are resistant to penicillin. Which statement best explains the
appearance of these resistant varieties?
A. Penicillin stimulated the bacteria to become resistant, and this
resistance was passed to the offspring.
B. Penicillin today is not as strong as the penicillin used when it was first
introduced.
C. Penicillin stimulated the production of antigens in the resistant
bacteria.
D. Penicillin killed the susceptible bacteria, while naturally resistant
varieties survived and reproduced.
Answer:
D
Explanation:
D is the correct answer. The rest do not represent evolution / natural selection well, and penicillin's strength has remained the same.
Answer:
D
Explanation:
D is the correct anwser
A group of students walking through a coastal rainforest in Vietnam observe a large, beautiful tree towering above. The tree is full of orchids, mosses, birds, insects, arachnids, and millions of bacteria, all interacting with the abiotic environment, including the air, soil, and water of the forest. Which of the following terms bests describe this in the entirety of what they are observing?
a. community
b. habitat
c. ecosystem
d. Omicrocosm
Answer: A or C
Explanation:
Drag each tile to the correct box.
Arrange the organisms according to their positions in the food web, starting with the autotrophs.
Answer:
grass
beetle
bird
fox
Explanation:
I got it right on the test
What is the platform of ADNOC called?
(Please dont comment files)
Answer: ADNOC Hosts Youth Circle at its Umm Lulu Offshore Platform as it Focuses on the Future - Abu Dhabi National Oil Company.
Explanation: Hope that was helpful! :D
Messages are passed from cell to cell by
Answer:
cell communication
Explanation:
In the form of ligands, hormones, and the endocrine system (also includes paracrine, juxtacrine, etc.)
what are 5 examples that the muscles are working in pairs
Answer:
Muscles that work like this are called antagonistic pairs. In an antagonistic muscle pair as one muscle contracts the other muscle relaxes or lengthens.
...
Antagonistic muscle pairs.
Biceps Triceps
Hamstrings Quadriceps
Gluteus maximus Hip flexors
Gastrocnemius Tibialis anterior
Pectoralis major Latissimus dorsi
Answer:
Muscles that work like this are called antagonistic pairs.In an antagonistic muscle pair as one muscle contracts the other muscle relaxes or lengthens. The muscle that is contracting is called the agonist and the muscle that is relaxing or lengthening is called the antagonist.For example, when you perform a bicep curl, the biceps will be the agonist as it contracts to produce the movement, while the triceps will be the antagonist as it relaxes to allow the movement to occur.The biceps contracts and raises the forearm as the triceps relaxesAntagonistic muscle pairs
The following groups of muscles are antagonistic pairs:Biceps
Triceps
Hamstrings
Quadriceps
Gluteus maximus
Hip flexors
Gastrocnemius
Tibialis anterior
Pectoralis major
Latissimus dorsi
To allow antagonistic pairs to work efficiently, other muscles called fixators assist by supporting and stabilising the joint and the rest of the body. Some fixators also assist the agonist and act as a synergist.The trapezius muscle can act as a fixator when the biceps is flexing the elbow joint.The abdominals can act as fixators to stabilise the body for hip and knee movements.I’ll give points + brainalist for the correct answer (:
Answer:
C
Explanation:
Answer:
A group of organs working together to preform a certain job
Explanation:
Each organ has its own specific set of duty’s to preform, all building upon eachother to help the body work.
Drag each tile to the correct location.
Identify each process as a carbon source or a carbon sink.
Carbon sources are any natural or artificial production site of carbon and/or any chemical compounds composed of carbon, such as carbon dioxide and methane.
Carbon source: Combustion,Respiration.
A carbon sink absorbs carbon dioxide from the atmosphere.
Carbon sink: Photosyntheis,Ocean absorption,Fossilization.
Which one is carbon sink or carbon source?1. Photosyntheis: Forests are typically carbon sinks, places that absorb more carbon than they release. They continually take carbon out of the atmosphere through the process of photosynthesis.
2. Ocean absorption: Phytoplankton are the main reason the ocean is one of the biggest carbon sinks. These microscopic marine algae and bacteria play a impotant role in carbon cycle - absorbing carbon.
3. Fossilization: Absorb CO2.
4. Combustion: Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat and CO2 in environment.
5. Respiration: The respiratory system, with its conduction and respiratory zones, brings air from the environment to the lungs and facilitates gas exchange both in the lungs and within the cells and gives out CO2 in atmosphere.
Thus, we can conclude that
carbon sink: Photosyntheis,Ocean absorption,Fossilization.
carbon source:Combustion,Respiration.
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Question on image down below
Answer:
it is 25%
Explanation:
each Box is 25%
the question is asking homzyous and recessive
genotype is only homzgous if the letters are same
The genotype is also only recessive if there are lower letters.
hope this helps!
Which part of the cell holds genetic information in the molecule DNA? vacuole Golgi body chromosomes ribosome
Answer:
the answer is chromosomes. I hope this helps :)
Explanation:
Can you help me answers it,
What is the process consumers use to release energy from food?
Answer:
Primary producers—plants, algae, and bacteria—make up the base of the pyramid, the first trophic level. Through a process called photosynthesis, producers capture energy from the sun and use it to create simple organic molecules, which they use for food. Consumers constitute the upper trophic levels.
Explanation:
Primary producers—plants, algae, and bacteria—make up the base of the pyramid, the first trophic producers capture energy from the sun and use it to create simple organic molecules, which they use for food. Consumers constitute the upper trophic levels.
What is photosynthesis?
Photosynthesis is the process whereby plants manufacture their own food with the use of sunlight and carbon dioxide.
When this occurs, (energy in form of glucose) and oxygen are produced. The oxygen is released for animals to use.
Thus, producers capture energy from the sun and use it to create simple organic molecules, which they use for food. Consumers constitute the upper trophic levels.
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Based on the data presented in the Venn Diagram, circle B MOST LIKELY represents the
phase.
A)
gas
B)
liquid
C)
plasma
D)
solid
Answer:
The answer is B) Liquid
Explanation:
What is the cause and effect relationship in populations?
Answer: The cause can be something that causes the problem and the effect is what effected it. If something caused the population to go down the effect would be death rate or birth rate.
Hope this helps!
Answer:
the positive effect call relationship in population is the amount of income food income and growth of the community around this and Community Wellness
A fox and an owl both eat forest mice. Which type of relationship does the fox have with the owl?
commensalism
predation
parasitism
competition
mutualism
answer plz
Answer:
The answer is competition.
Explanation:
Competition is a type of relationship where a negative interaction occurs among organisms whenever two or more organisms require the same limited resource.
PLZ EXPLAIN, AND I NEED HELP NOW!
If an organism's body cells have 12 chromosomes, how many chromosomes will sex cells have? Explain.
Answer:
6 chromosomes
Explanation:
Answer:
The gametes or sex cells produced by the organism will have 6 chromosomes if the organism has 12 chromosomes.
Explanation:
The diploid organism has all chromosomes in pairs, one chromosome inherited from male parent & another chromosome in the pair is inherited from the female parent. If an organism has 12 chromosomes, it has 6 different types of chromosomes, differing from one another in length, the position of centromeres and genes present on these. Six different types of chromosomes constitute a haploid set of chromosomes. Two chromosomes of the same type are called homologous chromosomes and these constitute a homologous pair. The cells producing sex cells or gametes undergo meiosis (reduction division) so that each gamete contains only one chromosome of a homologous pair. The gametes are haploid, having half the number of cells as compared to somatic cells.
Hope this helps have a great day/night! :}
Before cellular respiration, glucose must be broken down by the process of?
Answer:
Cellular respiration: process of turning glucose into energy In the form of ATP. Before cellular respiration can begin, glucose must be refined into a form that is usable by the mitochondrion. Each 6 carbon molecule of glucose is converted to two 3 carbon molecules of pyruvic acid in the process of glycolysis.
Explanation:
What are forms of cell regulation
Answer:
cyclins. cyclins are among the most important core cell cycle regulators