Cell membrane is a selectively permeable barrier, an outer covering of both plant and animal cell. It protect the cell from external harsh environment.
What is cell membrane?Cell membrane has two major components such as Proteins and lipids where as the ratio of protein to lipid in cell membrane may vary depending on types of cells.
The most common lipid is phospholipid, which form a semi-permeable lipid bilayer.
Some organelles in a cell are also have its own cell membrane such as nucleus and mitochondria.
The function of cell membrane is to maintain integrity of the internal environment of the cell, act as a base of attachment for the cytoskeleton in some organisms resulted in support cell and maintain its shape.
It helps in transport of nutrients into the cell and transport of toxic substances out of the cell due to its selectively permeable nature.
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In the control group, how did the number of grass blades change over the three week period?
In the experimental group, how did the number of grass blades change over the three week period?
Was there a measureable difference in the number of grass blades between the control group and the experimental group at the end of three weeks?
Answer:
decreased
decreased
yes
Explanation:
edge
Answer:
decreased
decreased
yes
Explanation:
What is Rodenticide?
A) A medicine to kill worms
B) A medicine to kill animals
C) A lubricant
D) A pesticide
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[tex]{\fcolorbox{red}{black}{\orange{AnsWer}}}[/tex]
[tex]\underline\bold\green{A \:pesticide.}[/tex]
How would the rabbits be affected if the owls disappeared from this ecosystem
Answer: the rabbit population would increase because the owls food are rabbits and if there is no one to eat rabbits then there would be a significant increase in the amount of rabbits.
How much water would have to be displaced for the Lucia to float?
What does the salinity of sea water represent?
Pleaseeeee help me
Answer:
Salinity is a measure of the 'saltiness' of seawater, or more precisely the amount of dissolved matter within seawater.
What are the three main areas of study within anatomy?
a) physiology, superficial anatomy, microscopic
b) functional anatomy, physiology, gross anatomy
c) microscopic anatomy, superficial anatomy, functional anatomy
c) gross anatomy, superficial anatomy, functional anatomy
Answer:
physiology functional anatomy microscopia anatomy
Explanation:
The three main areas of study within anatomy include gross anatomy, superficial anatomy, functional anatomy (Option c).
What is anatomy?Anatomy is one of the most important branches of biology aimed at understanding morphological features.
Anatomy was originally used as a method of classification (not evolutionary classification).In conclusion, the three main areas of study within anatomy include gross anatomy, superficial anatomy, functional anatomy (Option c).
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Where are chromosomes located during metaphase?
A
outside the cell membrane
B
on opposite sides of the cell
C
lined up along the center of the cell
D
spread around the edges of the cell
Answer:
C
Explanation:
In metaphase, the chromosomes are lined up along the center, or equatorial plate, of the cell and each sister chromatid faces opposite poles.
Which of the following is NOT a cartilage we find in the body?
Dense cartilage
Hyaline cartilage
Fibrocartilage
Elastie cartilage
What is a nucleotide? What is its components and function?
Answer:
A nucleotide is an organic molecule that is the building block of DNA and RNA. They also have functions related to cell signaling, metabolism, and enzyme reactions. A nucleotide is made up of three parts: a phosphate group, a 5-carbon sugar, and a nitrogenous base.
Explanation:
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Fill in the blank with the correct word.
A substance that is produced by a plant that affects how it grows and develops is called a
.
Answer:
A substance that is produced by a plant that affects how it grows and develops is called a hormone.
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A substance that is produced by a plant that affects how it grows and develops is called a hormone.
What is a hormone?Hormones are your body's chemical messengers. They travel in your bloodstream to tissues or organs.
They work slowly, over time, and affect many different processes, including growth and development, metabolism, maintaining body temperature, and regulating mood and cognitive functions.
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The wall of which of the following is thick and elastic. Single choice.
Vein
Arteries
Capillaries
Answer:
mmmmmmmmmmmmmm
Explanation:
Ocean salinity varies from place to place due to differing conditions in the environment
-true
-false
Ocean salinity varies from place to place due to differing conditions in the environment is a true statement.
How ocean salinity varies?It is not evenly distributed, but it does change temporarily and spatially with the oceans and seas.
This variation is both horizontally and vertically distributed; horizontal distribution refers to salinity changes at the ocean's surface level and vertical distribution, to salinity changes as the ocean's depth.
Several variables influence ocean salinity. They are global warming, evaporation, rainfall, river water input, ocean currents, atmospheric pressure, and wind direction. Oceans and seas have a 35 average salinity.
Therefore, It is not evenly distributed, although it does change momentarily and spatially with the oceans and seas.
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Here is a model of the Sun-Earth system Earth's orbit Earth's axis According to the model, what causes daytime and nighttime on Earth?
O A. The Sun revolves around Earth.
B. Earth revolves around the Sun
C. The Sun spins in space.
D.Earth spins in space
Answer:
D. Earth spins in space
Explanation:
Day and night are due to the Earth rotating on its axis, not its orbiting around the sun.
describe how water moves from the soil to the leaves in a tree
Answer:
Cohesion/adhesion
Explanation:
Water is passively transported into the roots and then into the xylem. The forces of cohesion and adhesion cause the water molecules to form a column in the xylem. Water moves from the xylem into the mesophyll cells, evaporates from their surfaces and leaves the plant by diffusion through the stomata.
What makes stars produce enrgy
Answer:
Stars produce energy from nuclear reactions
the reaction occurs when hydrogen and helium fuse toghther.
Explanation:
Answer:
Stars make energy through nuclear fusion
Explanation:
the process of a cell actively removing waste products is called
Answer:
the answer to your question is Exocytosis
Explanation:
please give me brainliest also I need 3 more :) thanks
Which geographic features are associated with a divergent boundary
Answer:
divergent pulls away so the features that are included would be pulling away.
Explanation:
The explosive force of a volcanic eruption depends on the type of magma in the magma chamber. The type of magma depends on its _____.
viscosity, gas content, and silica content
gas, silica, and water vapor content
gas content, silica content, and pressure
viscosity, temperature, and water vapor content
Answer:
The last one.
Explanation:
The last one is most plausible. The viscosity, temperature, pressure, and water vapor content all contribute to its type.
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The explosive force of a volcanic eruption depends on the type of magma, and magma depends on its viscosity, temperature, and water vapor content, which is the last option.
What are the determining factors of magma?magma, including viscosity, temperature, and water vapor, can affect the magma's quality, as low-viscosity, high-gas content magmas, such as basalt magmas, tend to produce more explosive eruptions, magma's with high viscosity and low gas content, such as rhyolite magmas, produce more effusive eruptions because the gas bubbles are hard to escape. The temperature has an effect on the magma as well, because hot magma is liquid and cold magma is thicker.
Hence, the explosive force of a volcanic eruption depends on the type of magma, and magma depends on its viscosity, temperature, and water vapor content, which is the last option.
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How does energy transfer happen?
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Which of the following is an example of an organism providing energy to
a primary consumer?
А
Seaweed being eaten by a turtle
B
Shrimp being eaten by a codfish
C
Snake being decomposed by bacteria
Oak tree making food from sunlight
Answer:
Explanation:How many grams are in 5.4 moles of iron (III) sulfate, Fe2(SO4)3?⇔⇔∉↑·ПНПёПсжЫЫЫЁ
Explanation:
Seaweed being eaten by a turtle is an example of an organism providing energy to a primary consumer. Therefore, the correct option is A.
What is a seaweed?The seaweed is a primary producer that captures energy from the sun through photosynthesis and converts it into chemical energy stored in organic compounds. The turtle is a primary consumer that obtains energy by consuming the seaweed.
Option B is incorrect because both the shrimp and the codfish are consumers. Option C is incorrect because this is an example of decomposition, which is the breakdown of organic matter into simpler compounds by decomposers such as bacteria.
Option D is incorrect because the oak tree is a primary producer that captures energy from the sun through photosynthesis. Therefore, the correct option is A.
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What problems can develop that affect the cells of the blood?
Answer:
Diseases that cause this type of anemia are often long-term conditions, such as kidney disease, cancer, or rheumatoid arthritis. Hemolytic anemia. This type of anemia happens when red blood cells are destroyed by an abnormal process in your body before their lifespan is over.
Explanation:
hope this helps you! (got answer from g o o g l e , btw)
Describe how you are involved in both the carbon and oxygen cycles
Plants use carbon dioxide in a process known as photosynthesis. During photosynthesis, plants give off oxygen as a waste product. Carbon dioxide moves from the air into the leaves of plants through tiny openings in the plant's leaves. Oxygen moves out of the plant leaf through these same openings.
Answer:
Plants take in carbon dioxide, and turn it into oxygen. Animals breathe in that oxygen and breathe out carbon dioxide. So with out one or the other, there would be an imbalance of oxygen and carbon dioxide and nothing would be able to survive.
The star football player starts at the 4 yard line he runs forward a constantly velocity of 5 yards per second and gets tackled 6s later which yard line was he tackled on?
Explain to your client at the water purification plant what the cause of the increased number of bacteria in the water is. Make sure to include the evidence you used to reach your conclusions. Your response should include a minimum of five complete sentences.
Answer:
Water purification, process by which undesired chemical compounds, organic and inorganic materials, and biological contaminants are removed from water. Water purification provides clean drinking water and supplies treated water for domestic, industrial, medical, and pharmacological uses.
Explanation:
searched online
What’s the difference between meiosis and mitosis
Answer:
Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
Explanation:
Answer:
Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells. Below we highlight the keys differences and similarities between the two types of cell division
:)
Are enzymes needed for metabolism?
Answer:
yes
Explanation:
metabolism would not happen w/o enzymes since it needs energy and enzymes provide energy.
Answer:
yes, enzymes are crucial to metabolism because they allow organisms to drive desirable reactions that require energy that will not occur by themselves, by coupling them to spontaneous reactions that release energy.
Explanation:
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compare the composition of lymph with that of blood plasma in the following two situations:
(a) Lymph that has just left a lymph node.
(b) Lymph formed in the vicinity of the small intestine.
please help asap
please help me at least one of the question
Answer:
Lymphatic vessels and ducts provide the complex transportation network of the lymphatic system. These vessels carry a fluid called lymph away from body tissues and capillary beds to be filtered by nodes and organs, then returned to the bloodstream.
Explanation:
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describe how water moves from the soil to the leaves in a tree
Answer:
bgt
Explanation:
A mule is born when a horse and a donkey mate successfully. Mules are
sterile, meaning that they cannot reproduce, but they are still considered
alive. Explain how this can be true.
Answer:
Explanation:
Ill give my best try. Im very sorry if this doesnt anwser your question
Because more donkeys and horses mate, which means that more mules are created.