Answer:
A
Explanation:
The correct answer here would be that less than 3 percent of Earth's water is freshwater containing no salt.
Generally speaking, about 71 % of the earth is made up of water. Out of this percentage, approximately 97 % is found in the oceans with less than 3 % being freshwater. About 68.7 % of the freshwater is locked-up as glacier and ice, 30.1 % is groundwater, while the remaining 1.2 % represents surface and other forms of freshwaters which include ground ice and permafrost, lakes, atmosphere, rivers, swamps and marshes, soil moisture, and the freshwater in living organisms.
The correct option is A.
Which of the following statements is true?
A
Heterotrophs produce their own food.
00
Autotrophs take in nutrients from outside themselves.
с
Consumers are heterotrophs.
D
Consumers are autotrophs.
actually environmental science own words please need it now
The answer to this question is C
A _______ climate has moderate rainfall and moderate temperatures which both remain constant throughout the year.
Answer:
temperate climate
Explanation:
Temperate climates are generally defined as environments with moderate rainfall spread across the year or portion of the year with sporadic drought, mild to warm summers and cool to cold winters.
A solid will float in a liquid if it is less dense that then liquid, and sink if it is more/dense than the liquid. If the density of the seawater is 1.025g/mL, which type of plastics would definitely float in seawater?
Answer:
this is the answer \
Explanation:
there are a lot of mosquitos in my house what should I do to get rid of them best answer gets brainlyist
Answer:
Kill mosquitoes inside your home. Use an indoor insect fogger or indoor insect spray to kill mosquitoes and treat areas where they rest, also Mosquitoes rest in dark, humid places like under the sink, in closets, under furniture, or in the laundry room.
Answer:
spray your house
Explanation:
How environmental conditions influence modern history?
Plz it’s 7th grade science
Answer:
it helps future generations understand the impacts of humans and pollution on health.
Explanation:
What is the name of the molecule that contains three phosphates and is
the primary energy currency of cells?
Answer: ATP
Explanation: ATP is the name of the molecule that contains three phosphates and is the primary energy currency of cells.
. Unlike animal cells, plant cells have ________________¬¬¬¬¬¬¬¬¬¬, vacuoles, and a ____________ wall.
Answer:
1. chloroplasts
2. cell wall
Explanation:
1. plants carry out photosynthesis which chloroplasts help. so only plant cells have them, animals do not use photosynthesis
2. animal cells only have a cell membrane. only plant cells have a cell wall.
When does species richness increase at the fastest rate? Why is this possible?
Explanation:
As temperature increases, species richness tends to increase up to a maximum, beyond which water deficits then begin to depress richness
As temperature of the waterbody increases, the species richness tends to increase up to a maximum level, beyond this value water deficits which begins to depress the species richness.
What is Species Richness?Species richness is the number of different species present within a defined region. Species richness is commonly described by an index known as the Shannon's index 'H'.
Temperature has an important influence on the distribution of organisms in an area because it determines the physical state of the water body. Most organisms cannot live in conditions when the temperature remains below 0°C or above 45°C. The organisms cannot adapt to these extreme temperature ranges.
Temperature has been shown to increase the species interactions by increasing attack rate on species.
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Cloning is a mode of
Answer:
Reproduction
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U matter.
The world needs u
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Apex - what does it mean to make a prediction: A. To support a hypothesis. B. To examine or interpret observations. C. To answer a scientific question. D. To describe what will happen if a hypothesis is true.
When you make a prediction, you are describing what you think would happen if your hypothesis is true. The answer is D.
In oxidation–reduction reactions, ____.
Suppose a human blood cell containing a 0.9 percent solute concentration were put into a container of 0 percent solute solution (i.E., distilled water). Would the blood cell get bigger or smaller? Why? In your explanation, you must tell me which area has the hypotonic solution (inside the blood cell or outside the blood cell), which area has the hypertonic solution (inside the blood cell or outside the blood cell), and which direction the water would be moving (into the cell or out of the cell).
Answer and explanation:
If a human blood cell with a 0.9% solute concentration were to be put into a container of 0% solute solution, the cell would get BIGGER.
The cell contains a more concentrated solution than the solution in the container. The difference in concentration would produce an osmotic gradient that would cause water from the container to get inside the cell to even the concentrations - this is going to make the cell much bigger because the entering water would bloat the cell.
In this example, the solution in the container is hypotonic in relation to the cell, while the solution inside the cell is hypertonic in relation to the solution in the container. This is why the water will be moving from outside of the cell to the inside of the cell.
which reactions add a water molecule to break a polymer into smaller parts?
In an experiment, 1000 rodents were released into a light brown sandy area where no rodents previously existed. The rodents' fur color was either brown, black, or tan. There was a known predator of the rodents in the same area. After several generations, what fur color frequency would a researcher expect to see?
Answer:
It is expected that rodents with brown color have more chances to increase their frequency in the population
Explanation:
The cryptic coloration (or camouflage), is an adaptation that organisms have developed to disguise their appearance, thereby blending in with the surrounding environment. The cryptic coloration is used by organisms as a strategy to hide their identity, movement, and location from their predators. In this case, it is expected that organisms with the same color of the surrounding environment would be the best to be selected by natural selection, i.e., these organisms would have more chances to survive and to reproduce.
In which form of reproduction will pieces of the parent develop into identical copies of the parent?
1.) vegetative reproduction
2.) binary fission
3.) budding
4.)fragmentation
Answer:
4. Fragmentation
Explanation:
Just took the test & Binary Fission was wrong
Budding. Organisms reproduce by splitting off new individuals from existing ones, resulting in genetically identical parent and daughter organisms.
What do you mean budding?Budding is an asexual mode of organism formation. A new organism is formed from a small part of the parent's body during this process. A newly formed bud separates to form a new organism. The newly formed organism remains attached as it grows.To create an advantageous variety (cultivar) and rootstock combination, a single bud from a desirable plant is inserted into an opening in the bark of a compatible rootstock.Budding, also known as bud grafting, is a type of vegetative or clonal plant propagation that produces an exact replica of the parent plant. Chip budding and T budding are two slightly different methods of budding.To learn more about : Budding
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Which organelle or structure is described as a phospholipid bilayer?
A)cell membrane
B)cell wall
C)cytoskeleton
D)cytoplasm
why does water molecule have two different types of charges
Explanation:
Hey there!
The reason is there is a bonding in between two elements that is one is hydrogen, which has positive charges and oxygen which has negative charge. So, it is why water molecules have two different charge.
Hope it helps..
After trying to push the heavy barrel up the ramp, the man decides to use a shorter ramp leading up to the landing. Will this make it easier or more difficult to roll the barrel up the ramp? Explain. A) More difficult because the steeper slope requires more effort force to overcome gravity. B) More difficult because the barrel's mass will increase. C) Less difficult because the steeper slope requires less effort force to overcome gravity. D) Less difficult because the effect of the earth's gravity on the barrel will decrease.
Answer:
A)
Explanation:
because the steeper slope will make it harder to overcome gravity
PLEASEEEEE HELP
chlorine gas (CI) is toxic and sodium (Na) is explosive? yet, together they make common table salt. why do they form a chemical bond?
A)together these two elements form a more stable molecule
B)sodium is a non metal and chlorine is a metal -nonmetals and metals always form a bond
C)chlorine is on the left side of the periodic table in group 1 and these elements always form bonds
D)chlorine has two protons and they transferred to sodium to form the salt molecule
Both ions have complete valence shells and are energetically more stable. I’d assume D because the protons need to transfer.
The mass of an object is the
a) force of gravity acting on it
B)amount of matter it contains
C)amount of space it takes up
D)amount of water it displaces
Answer:
the amount of matter it contains
Explanation:
mass is the amount of an object contained
in it
How many neutrons are in the nucleus of a nitrogen atom?
Answer:
7 Neutrons
Explanation:
There are 7 Neutrons, 7 Protrons, and 7 Electrons, in Nitrogen. If you are unclear, try looking at the periodic table. :)
HELP ME PLEASE PLEASE PLEASE!!!
What best describes a river system?
A. the network that includes all the waters feeding into a main river and all the waters branching out from it
B. the source of a river and all the tributaries feeding into the river
C. the source and mouth of a river
D. all the distributaries flowing away from a river and the mouth of the river
Answer:
B the source of a river and all the tributaries feeding into the river
Explanation:
Organ _____
are made of multiple organs that work
together to maintain homeostasis in an organism.
Answer:
systems
Explanation: Cells are organized into tissues, and tissues form organs. Organs are organized into organ systems such as the skeletal and muscular systems. All of the organ systems of the body work together to maintain homeostasis of the organism. If homeostasis fails, death or disease may result.
Organ systems are made up of multiple organs that work together to maintain homeostasis in an animal or multicellular animals. In animals, organ systems are seen, which coordinate to form an organism.
What is an organ system?Multicellular animals are made up of multiple cells, and these cells work together to make a tissue. All the cells in a tissue have a single function, such as epithelial tissue or nervous tissue; these tissues form the organs. An example is the stomach, which is made up of different types of tissue such as longitudinal smooth muscle, circular smooth muscle, etc.
These organs collaborate to form organ systems like the digestive system, which includes the stomach, small intestine, pancreas, liver. Organs such as the stomach digest food in the organ system, and the small intestine aids in the process by allowing it to absorb into the blood along with digestion. Organ systems are interdependent, such as the digestive system, which is dependent on the nervous system, the circulatory system, and so on.
hence Organ systems are made up of multiple organs that work together to maintain homeostasis.
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What would they be called? I don't know/ I am multitasking and don't want to screw it up.
Answer:
Endotherms
Explanation:
It says internal temperature and I know that endo means in. Also Google told me so. (I had to double check my answer)
Choose THREE reasons why less energy is passed from one trophic level to the next
Answer:
As metabolic heat makes energy be lost after an animal is consumed the food chain loose energy
Explanation:
Which abiotic factors would you expect to influence the growth of trees in the mountains?
Number of deer and insects
Types of trees and plants
Rainfall and the location on the mountain
Predator and prey population
Answer:
Rainfall and the location on the mountain
Explanation:
This is the answer because:
Rainfall highly helps the trees on the mountains grow. The location of a tree also matters a lot because it has to be in a spot where it can reach sunlight and lots of rain.
Therefore, the answer is Rainfall and the location on the mountain.
Hope this helps! :D
Why is light emitted by elements when they are heated?
Answer:
Heating an atom excites its electrons and they jump to higher energy levels. When the electrons return to lower energy levels, they emit energy in the form of light.
Explanation:
hope this helps plz mark brainliest
Which type of cell is pictured on the right?
eukaryotic
prokaryotic
eukaryotic because it is nuclear
In a cell, all the organelles work together to carry out
A) diffusion
B) active transport
C) information storage
D) the life processes for the cell
All the organelles in a cell work together to carry out the life processes for the cell.
ORGANELLES:
Organelles are organ-like structures found within a cell. They perform specific functions in the cell.For example;
Mitochondria is the site of energy productionRibosomes are site of protein synthesisVacuoles aids in water regulation in a cell. Nucleus store the genetic material of a cellCell membrane gives the cell a definite structure and protects its content. Although, each organelle is function-specific but they all work hand in hand to fulfill all the life processes of that cell.Learn more at: https://brainly.com/question/3282684?referrer=searchResults
How has the development of a pine and then a hardwood forest affected populations of shrubs?
A The development of the two types of forests has negatively affected populations of shrubs by decreasing the amount of pollinators in the area.
B The development of the two types of forests has positively affected populations of shrubs by increasing the amount of water available to shrubs.
С The development of the two types of forests has negatively affected populations of shrubs by decreasing the amount of space available to shrubs.
D The development of the two types of forests has positively affected populations of shrubs by increasing the amount of sunlight in the area.
Answer: Option C.
The development of the two types of forest has negatively affected the populations of shrubs by decreasing the amount of space available for shrubs
Explanation:
The development of the two types of forest has negatively affected the populations of shrubs by decreasing the amount of space available for shrubs because pine and hardwood are huge trees bigger than shrubs and occupy space. As they occupy space the received most of the sunlight, their roots is very extensive and draw water and nutrients from the soil which makes these resources not very much available for shrubs and hence it drastically affected the populations of shrubs. Because of their heights, wideness and big leaves, little sunlight gets to shrubs and hence shrubs photosynthesis is reduced.
The removal of one seral stage to another is called ecological succession.
The place which is used by the shrubs is now used by the tree and give the competition for the land. The development of the two types of forest has negatively affected the populations of shrubs by decreasing the amount of space available for shrubs.
The development of the two types of forest has negatively affected the populations of shrubs by decreasing the amount of space available for shrubs because pine and hardwood are huge trees bigger than shrubs and occupy space.
As they occupy space they received most of the sunlight, their roots are very extensive and draw water and nutrients from the soil which makes these resources not very much available for shrubs, and hence it drastically affected the populations of shrubs.
Because of their heights, wideness, and big leaves, little sunlight gets to shrubs, and hence shrub's photosynthesis is reduced.
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