Answer:
# Diffusion is a down hill process.(flow is from higher concentration to lower concentration)
# It does not require energy.
but,
# Active transport is a uphill process.(flow is from lower concentration to higher concentration)
# It requires energy.
Two features of diffusion that do not apply to active transport are:
Diffusion is a passive process that does not require energy input, while active transport requires the expenditure of energy in the form of ATP.Diffusion occurs down a concentration gradient, from an area of high concentration to an area of low concentration, while active transport can move ions against their concentration gradient, from an area of low concentration to an area of high concentration.What is Diffusion?Diffusion is a process by which molecules move from an area of high concentration to an area of low concentration, until they reach a state of equilibrium where there is no further net movement of molecules.
This occurs because molecules are in constant random motion, and they will naturally move from areas where they are more concentrated to areas where they are less concentrated. This process does not require energy input, and it will continue until the concentration of molecules is the same throughout the system.
Active transport, on the other hand, is a process by which molecules are moved across a membrane against their concentration gradient, from an area of low concentration to an area of high concentration.
This process requires energy in the form of ATP, which is used to pump molecules or ions against their concentration gradient. Active transport is able to move molecules or ions against their concentration gradient because it uses energy to change the shape of transport proteins in the membrane, allowing them to move molecules against their concentration gradient.
Therefore, two key features of diffusion that do not apply to active transport are that diffusion is a passive process that does not require energy input, while active transport requires energy input in the form of ATP.
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Which is not an example of a "living" life process?
A)Sensitivity
B)Resting
C)Growth
D)Nutrition
Answer:
Nutrition
Explanation:
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A full sized cow needs 100 square feet of pasture to graze on each day. Assume an average sized classroom is about 600 square feet. How many classrooms worth of pasture would be needed to keep a cow alive for a year?
Answer:
60 5/6 classrooms are needed
Explanation:
1 year=365 days
Cow requires 100 x 365/600 = 365/6 = 60 5/6
hope this helps =3
Snow slides down a mountain in an avalanche. Where would the snow have the
most potential energy?
Answer:
At the top of the mountain
Explanation:
The snow will have the most potential energy at the top of the mountain. Potential energy is the energy at rest of a body. It is a function of the mass, acceleration due to gravity and height of the body.
P.E = mgh
Since at the top of the mountain, we have the highest elevation. So, we expect that at the peak of the mountain the potential energy will be highest here.
Water can act as either a(n) _____ or a _____.
Answer:
acid or base?
Explanation:
i used the googles
What is the term we use to describe the cell membrane based on how it lets things into and out of the cell??
Answer: Scientists use what is called the Fluid Mosaic Model to describe the cell membrane's structure and function.
Explanation:
The cell membrane is selectively permeable, or "semi-permeable", meaning that the membrane only allows certain substances to enter or leave the cell.
12. What will happen when the human population exceeds the earth's carrying capacity?
Which is the correct order, from most simple to most complex?
A)Cell-Tissue-Organ System- Organism
B)Organ system-organ-tissue-cell tissue
C)Cell-Tissue-Organ-Organ System
D)Organism- Cell- Organ system- Tissue
Answer:
C) Cell-Tissue-Organ-Organ System
Explanation:
PLEASE HELP.... 60 POINTS + BRAINLIEST TO FIRST CORRECT ANSWER THAT IS DETAILED WITH GOOD EXPLANATION AND A CLEAR ANSWER. ANY FAKE ANSWERS OR WRONG ANSWERS WILL BE REPORTED AND DELETED. TYSM!!!!
Knowledge of the world gained through observations and experiments is a good definition of
A. a conclusion.
B. science.
C. a scientist.
D. a hypothesis.
Answer:
B. Science
Explanation:
Knowledge of the world gained through experiments and observations is a good definition of science.
Which two factors are considered in determining cell efficiency?
A: The ratio to surface area
B: The surface area to volume
C: The surface area to mass
D: The volume to surface area
how much pontential is at the top of a roller coaster
Answer:
Depends on What kind of roller coaster
Explanation:
Because there are no exact high given the answer is not fully complete
but the higher the roller coaster is-the more potential energy
btw: you spelled Potential wrong
also i hope this helps
The movement of water through a plant is caused by
Answer:
Osmosis
Explanation:
because osmosis is the process by which water molecules move through through a selectively permeable membrane from region of higher water concentration to a region of low concentration.
a volcanic eruption covers a lake that frogs lay their eggs in with ash.
Answer: Can you please ask the question? I don’t really understand what this is. Sorry :(
Explanation: None
Which statement is not an example of intracellular communication?
A-A muscle cell maintains homeostasis.
B-A nerve cell stimulates a muscle cell to contract.
C-A signal is translated to cause muscle contraction.
D-A muscle cell action is coordinated.
Answer:
d
Explanation:
Answer:
B. A nerve cell stimulates a muscle cell to contract.
What type of particles are ingested by the cell during endocytosis?
cell organelles such as the nucleus and mitochondria
oranges, apples, and different fruit
Fluid, macromolecules, or other large particles
Answer:
Explanation:
es un mecanismo que consiste en introducir partículas sólidas en las células que están cubiertas por una membrana. ... Sus funciones son: absorber nutrientes a fin de incorporar los nutrientes y los lípidos en la membrana plasmática, así como macromoléculas y, la comunicación intracelular
Which activity would be within the field of biology
Answer:
B, measuring the rate of squirrel births in a woodland habitat.
Explanation:
Biology is the study of life so anything that's considered living would be around this field.
Answer:
Explanation:
B measuring the rate of squirrel births in a woodland habitat
What is the answer for the question?
Answer:
Vesicles.
Explanation:
Transport vesicles are able to move molecules between locations inside the cell. For example, transport vesicles move proteins from the rough endoplasmic reticulum to the Golgi apparatus.
What is located outside of the center of the atom?
Answer:
Nucleus
Explanation:
Protons and neutrons are found in the nucleus.
please help asap
i will mark brainliest
5.water molecules are able to move towards the the leaflets in a plant or tree through xylem, the action is performed because molecules at the tip of the leaf evaporateRequired to answer. Single choice.
(20 Points)
true
false
Answer: True
Explanation:
Which best explains why the sun maintains its size and shape?
A. Pressure caused by high temperatures are balanced by gravity.
B. The sun burns from its core to its surface.
о
C. Forces exerted by orbiting planets cause the sun to rotate.
Answer:
A
Explanation:
The Suns own weight keeps itself together and keeps its size and shape. all things have gravity. in this case, the sun keeps it shape with balancing its gravity with the pressure.
The best explanation of why the sun maintains its size and shape is forces exerted by orbiting planets cause the sun to rotate. The correct option is C.
What is orbiting?"Orbiting" is one of those digital dating terms that perfectly describes what many of us have experienced but didn't realize had a name. It's when someone you were dating tells you they're no longer interested but keeps in touch with you on social media.
The Sun's own weight holds it together and maintains its size and shape. Everything has gravity. In this example, the sun maintains its shape by balancing gravity and pressure.
Planets orbit the sun in elliptical orbits, with the sun slightly off-center of each ellipse.
Therefore, the correct option is C. Forces exerted by orbiting planets cause the sun to rotate.
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What role do white blood cells perform in a human body?
protect against pathogens
conducting electrical impulses
secreting enzymes
carrying oxygen
Answer:
protect against pathogens
Explanation:
White blood cells perform the role of providing protection against pathogens in the human body. Thus, the correct answer is A.
What are Pathogens?Pathogens may be defined as kinds of microorganisms that induce numerous diseases in living entities.
White blood cells are one of the important parts of the immune system that assist the body to fight against infections or other diseases.
It includes neutrophils, eosinophils, basophils, monocytes, lymphocytes, etc. Each of the kinds of WBCs plays a specific role in protecting the body against pathogens.
Therefore, the correct option for this question is A.
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What is endosymbiosis? How does the meaning of the root words “endo-“and“-symbiosis” help you understand the meaning of endosymbiosis?
Answer:
Endosymbiosis is a mutually beneficial relationship between a host organism and an internal associate organism. The term is derived from the prefix "endo," meaning within, and the word symbiosis, which refers to a mutually beneficial relationship between two closely associated organisms.
Explanation:
Hope this helped! Haven an amazing day/night!!
(7th grade question about rocks)
Water fills a small lake in a dry region. After a few weeks, the lake evaporates, leaving behind a thin layer of crystals that form from minerals dissolved in the lake water. Each year, a new layer is added. Which type of rock is MOST likely to be formed by this process?
A-igneous
B-metamorphic
C-no rock
D-sedimentary
Answer:
D-Sedimentary
Explanation:
how is energy related to the reactants and products of a chemical reaction
Answer:
All chemical reactions involve energy.Energy is used to break bonds inreactants, and energy is released when new bonds form in products. Endothermic reactions absorb energy, and exothermic reactions releaseenergy. The law of conservation ofenergy states that matter cannot be created or destroyed.
Answer:
They will be different from the reactants
Explanation:
Even though the new product is made up of the reactants, the product will have different properties.
explain what safety measures you might take to avoid damaging the microscope, microscope slide, or a living specimen on your microscope stage
Answer:
Some of the safety measures one can take to prevent damage to the microscope, microscope slide or living specimen include;
1. Always carry the microscope with two hands
2. Do not touch the microscope lens
3. Clean and store properly after using
Explanation:
1. Microscopes are delicate laboratory equipments and hence, should be handled with care. The proper way to handle or carry a microscope is to place one hand on the arm and the other below the base of the microscope. This will prevent the microscope from hitting something and getting damaged or something falling off.
2. The lens, either the objective or occular, is what makes visibility of any specimen possible. It shouldn't be mishandled by touching it or using inappropriate materials to clean it. A lens cleanser designed for that function should be used.
3. After use, the microscope should be cleaned thoroughly and stored in a dry place. The maintenance of the microscope will improve how long it will last.
The equipments used in the science laboratories require proper handling and safety measures to help the students and researchers to prevent any kind of illness and injury.
• The following are the safety tips to follow to avoid damaging the microscope, a living specimen on the microscope stage, or a microscope slide:
• One should use the microscope with two hands and should wear proper lab clothing.
• One should look at the specimen from the side, not via the eyepiece at the time of turning the low power objective as close as possible to the specimen at the time of the initiation of observations.
• One should avoid the application of coarse adjustment knob at the time of using the high power objective.
• One should prevent turning the fine adjustment knob more than a fourth turn to amend the focus at the time of using the high power objective.
Thus, one should follow precautionary measures while handling microscope and its components.
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why would a cell make and store fat?
Answer:
To keep your body running and fat is used to help process your food
Explanation:
Explanation:
Adipose (fat) cells are specialized for the storage of energy in the form of triglycerides, but research in the last few decades has shown that fat cells also play a critical role in sensing and responding to changes in systemic energy balance.
What are the
Consequences of rapid
Population growth on
environmental factors?
Answer:
Something that may be affected is habitats.
Explanation:
This is because humans decide to do create buildings and cities because their population is too high, which will make animals lose their habitats due to us chopping trees down or just laying pavement. Another thing that could happen to the environment could be pollution, this affects us all because we all breathe oxygen, so do animals. There are many other things that overpopulation can affect, but that would be too long to state, happy to help though!!! (if you want more info just look up China's pollution levels over the past ten years then look up their population over the past ten years an conpare.)
Which sources do scientists use to study the interior of Earth? Check all that apply.
Answer:
Sources of study of interior of earth:
Deep ocean drilling reveals humongous information through analysis of materials collected at different depth.
Volcanic eruption deliver information by the means of molten magma that comes out of Earth’s interiors.
Surface rocks are readily available earth material.
Answer:
core samples
earthquakes
s-waves
rock composition
Explanation:
Which of the following types of soil has the greatest permeability?
A.
silty
B.
loam
C.
clay
D.
sandy
C. Clay
D. Sand
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Sand 5.0 cm/hour
Sandy loam 2.5 cm/hour
Loam 1.3 cm/hour
Clay loam 0.8 cm/hour
Silty clay 0.25 cm/hour
Clay 0.05cm/hour
Answer:
The correct answer would be C and D
Explanation:
A tissue that is one layer thick but appears to be multilayered and is composed of cells taller than wide is
Answer:
Stratified
Explanation:
Epithelium that is one cell thick is classified as simple. Epithelium that is more than one cell layer thick is classified as stratified. If the cells are flat, the epithelium is termed squamous. If the cells are as tall as they are wide, it is cuboidal.
