Answer:
The cells need water to maintain their metabolic functions, the way water enters through cells membranes is by osmosis.
Explanation:
The cell membrane is a lipidic bilayer composed of phospholipids and embedded proteins. Phospholipids have the characteristic of being amphiphilic which means that possess hydrophilic and lipophilic characteristics. The most common way is by osmosis, that is a mechanism that moves water from high concentration to less concentration of water. In the cell membrane, there are is channels of proteins called aquaporins that facilitate the pass of water through the membrane. Also, as water is a very small molecule without charge, this characteristic allows passing a limit amount of water molecules through the hydrophilic characteristic of membranes.
Answer:
Explanation:
By killing bacteria
Antibiotics and the immune system are the two forces that cope with bacterial infections. ... Bacterial infection requires an effective answer from the immune system. Macrophages are the immune cells that first respond to bacterial infection, by recognizing, engulfing and killing microorganisms.
So basically, they kill bacteria.
The elevator at a factory moves materials around the building.
The boss at a factory gives out orders and directions.
The boxes at a factory are used to ship materials to customers.
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Answer:
The boss at a factory gives out orders and directions.
Explanation:
The nucleus is an organelle that is enclosed by nuclear membrane and carry genetic material in eukaryotic cells.
The role of nucleus is to monitor and control the functioning of different activities such as growth and metabolism of the cell and also transfers the hereditary information. Likewise boss of a factory gives out orders and directions to regulate the factory properly.
Hence, the correct option is "The boss at a factory gives out orders and directions."
The major differences between the ecological niches of humans and cockroaches depend on the functional role they play, the space they live, and the group (trophic level) they belong.
An ecological niche can be regarded as an area or set of environmental factors or the surroundings of an individual where they perform their functional role.
Humans being omnivores have a generalized niche where they particularly have many options to play a functional role (feeding habit).
Cockroaches play the role of decomposers which is also an important part of any ecosystem. Living organisms are interdependent, so they need each other in order to survive. Therefore, it is wrong to say that humans and cockroaches are in competition. Cockroaches unlike humans live in really dirty and dark places because in such conditions they easily find food. While humans take a rest in dark (night) and search for their food in the daytime.
Humans take fresh and cooked food, while cockroaches shred dead and decaying organic matter into smaller pieces so that it would be eaten by recycling bacteria.
Therefore, these two different species are not in direct competition and survive without affecting each other's ecological niche.
To learn more about the Ecological niche, refer to the link:
B. Deep-sea trench
C. Mid-ocean ridge
D. Continental Rift
Mid-ocean ridge most likely forms where the northern pacific tectonic plate meets the oceanic crust of the western North America plate.
The tectonic plates of different parts of the earth's crust are always in motion, causing changes in the planet's landforms .
However the globe would look same due to presence of plate tectonics with a stable climate, mineral and oil deposits, and oceans with a chemical balance.
These plates are mainly 100 km thick, are made up of this crustal layer which continue to float on the warm and thick mantle, and create mountains
These plates are puzzle like matching pieces on the surface of the planet that , the movement of the plates caused by the mantle convection from below the lithosphere.
There are two primary types of tectonic plates such as continental tectonic plates and oceanic tectonic plates. Some plates are large, while some are smaller.
For more details regarding plate tectonics, visit
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Dakinki?
because thats who wrote the mona lisa
Answer:
What are some questions that biologists might ask about the living things they study?
Explanation:
Five fundamental questions in biology ...
1) The origin of life.
2) The mechanisms of evolution.
3) The control of the size, both of the organs and of the living beings.
4) The functioning of the brain.
5) Aging.
Biologists might ask some questions about the living organisms they study. These questions include, but not limited to:
All these questions and more might be asked by Biologists about the living organisms they study.
More on the study of living organisms can be found here: brainly.com/question/10375065
that liver contains lots of germs
the liver contains an enzyme that breaks down hydrogen peroxide
that hydrogen peroxide is a powerful enzyme
When a piece of liver is dropped into hydrogen peroxide, the peroxide bubbles vigorously as the hydrogen peroxide decomposes into water and oxygen. This suggests the liver contains an enzyme that breaks down hydrogen peroxide. Thus, the correct option is C.
Catalase is a common enzyme which is found in nearly all living organisms which are exposed to oxygen gas. Catalase is a key enzyme which uses hydrogen peroxide, a nonradical Reactive Oxygen Species, as its substrate. Catalase enzyme is responsible for the neutralization through decomposition of hydrogen peroxide, thereby maintaining an optimum level of the molecule in the cell system which is also essential for the cellular signaling processes.
Catalase is an enzyme which causes or speeds up a reaction without being affected during the reaction. The enzyme catalase speeds up the breakdown of hydrogen peroxide into water and oxygen gas.
Therefore, the correct option is C.
Learn more about Catalase here:
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Answer: C
Explanation:
Catalyst is one enzyme from liver that breaks down harmful hydrogen peroxide into oxygen gas and water