Answer:It would take 300 years.
Explanation: Light years are how much light travels in a year. Thus it would take 300 years for light to travel to earth if a star is 300 light years away.
Answer:
300 light years! :)
Explanation:
i hope this helps you! <3
Cell size and shape are important factors in determining the rate of diffusion. Think about cells with specialized functions, such as epithelial cells that line the small intestine or plant root hairs. What is the function of these cells? Sketch the shape of these cells. How does the shape of these cells relate to their function?
Answer:
Epithelial cells are the protective cells. They form the outer covering of the body surface which protects the body from any external danger.Cuboidal epithelial cells, as their name suggests, are shaped like cubes. These are typically found in tissues that secrete or absorb substances, such as in the kidneys and glands. Columnar epithelial cells are long and thin, like columns. These are usually found in places that secrete mucus such as the stomach.
What characteristic was most useful in identifying each rock type? Explain. (Use the sentence starters and complete the sentences)
Igneous: The characteristic most useful in identifying igneous rocks was… because..
Metamorphic: The characteristic most useful in identifying metamorphic rocks was… because…
Sedimentary: The characteristic most useful in identifying sedimentary was rocks was… because..
Answer:
Give some examples of rocks that would be formed through the process depicted in the figure above.
Explanation:
HELP MEHHHH!!!!!!!!!!!!!!!!!!!??????????????????????????
Answer:
Gulls, since they are the only predators shown for the green crabs.
Organelles help to maintain homeostasis in cells. Human cells are no exception. White blood cells have the important role of engulfing or “eating” viruses and bacteria that can make us sick. Out of the organelles listed, which one do you think white blood cells have more of then others?
a) Lysosomes because these are filled with digestive enzymes
b) Vacuoles because these can store materials
c) Ribosomes because these help to build proteins
d) Mitochondria because these help to create energy
Answer:
a) Lysosomes because these are filled with digestive enzymes
Explanation:
The cellular process diffusion does not require cellular ________________ to reach equilibrium. Similarly, ________________uses a selectively permeable membrane to reach equilibrium. This Membrane allows _____________to pass through, but not soluble particles or molecules. It too does Not require cellular energy. When molecules cannot move through a cell membrane passively, the Cell uses a process called_____________. This process uses_______________ found in the cells Membrane to pass particles and reach equilibrium.
Answer:
Please tell me if you knew the answer
Explanation:
The small intestine exchanges nutrients to help maintain homeostasis. Through the process of digestion, food is broken down into smaller pieces. Sugar is a molecule that supplies our cells with energy. Sugar is a large molecule and is transported through carrier proteins. Sugar molecules are often transported into the bloodstream even when the concentration of glucose is higher in the bloodstream than in the intestine. Based on this scenario, is the transport of glucose accomplished through osmosis, diffusion, or active transport?
Answer:
Diffusion
Explanation:
The sugar is spreading to various places within the body and is trying to make one place less concentrated.
Based on the given scenario,the transport of glucose is accomplished through diffusion.
What is diffusion?
Diffusion is defined as the process of movement of molecules which takes place under concentration gradient. It helps in movement of substances in and out from the cell.The molecules move from lower concentration region to a higher concentration region till the concentration becomes equal.
There are 2 main types of diffusion:
1) simple diffusion-process in which substances move through a semi-permeable membrane without the aid of transport proteins.
2) facilitated diffusion- It is a passive movement of molecules across cell membrane from higher concentration region to lower concentration.
There are 2 types of facilitated diffusion one is osmosis and dialysis.
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in the metric system, do prefixes increase by a factor of 100?
Answer:
I believe that every prefix increases/decreases by 10.
Explanation:
For example
Kilo: 1,000
Hecta: 100
Deca: 10
Feeding relationships within a community can be represented by
Lipids are a major component of the cell's
Answer:
Membrane
Explanation:
The cellular membrane is composed of lipids, phospholipids, cholesterol, carbohydrates, and proteins.
Answer:
The membrane
is vinegar a solution?
The DEPENDENT VARIABLE is:
A. What the scientists is measuring or observing
B. The experimenter's control method
C. The results of the experiment
D. The effects science has on society
Answer:
I think its D
Explanation:
Cause I took something similar
Answer:
A
Explanation:
The Dependent variable is always going to be quantitative data. It's always going to be the data you are measuring.
How do oxbow lakes form? A. It is formed as lakes grow larger due to erosion and begins to look like an ox. B. It is formed when a bend in a river is cut off to form a lake. C. It is formed when a delta grows large enough to cut off a river to form a lake. D. It is formed when a dam stops the flow of a river and creates a lake.
Answer:
Oxbow lake is formed when a bend in a river is cut off to form a lake.
Explanation:
OPTON A - It is formed as lakes grow larger due to erosion and begins to look like an ox.This statement is incorrect , as the shape of the oxbow lake is not like an ox , it is a horse-shoe shaped lake .
OPTION B - It is formed when a bend in a river is cut off to form a lake.This statement is correct , as An oxbow lake is a U-shaped lake that forms to create a free-standing body of water when a large meander of a river is cut off.
OPTION C - It is formed when a delta grows large enough to cut off a river to form a lake.This statement is also wrong, as a river delta is specified by this statement.
OPTION D - It is formed when a dam stops the flow of a river and creates a lake.This statement is also false, since the creation of a reservoir is established by this statement.
FORMATION OF OXBOW LAKE -:The neck of the meander gets narrower and narrower progressively. The curve gradually grows so close that the river slices through the neck of the meander to take a new, straighter path. Sediment locks the end of the old loop over time. This leaves a region of water that is different, called an oxbow lake.
Hence , the correct option is B.
Answer:
Bbbb
Explanation:
how would you relate force and acceleration?
Force = mass * acceleration
This is Newton's second law
Explanation:
Hey there!
The external agency that brings change in body's action(i.e changes the body from rest to motion or motion to rest) is called a force.
We know;
The force is inversely proportional to acceleration. So, the best method to relate them is force in inversely proportional to acceleration of a place.
Hope it helps...
What happens to matter and energy in the process of photosynthesis?
Answer:
Matter movement: Carbon dioxide and water enter into the cell. Matter change: Carbon dioxide and water react resulting in glucose and oxygen. Energy change: The light energy of the sun is converted into chemical energy that is stored in the high energy C-C and C-H bonds of glucose.
Explanation:hope it helps :)
What happens What happens during cytokinesis? /ring cytokinesis?
When the human body perceives internal and external stimuli, it responds to maintain a stable internal environment. Which is NOT an
example of thermoregulation in the human body?
es )
A)
sweating when hot
B)
shivering when cold
conserving adipose tissue
D)
dilation/constriction of blood vessels
Answer:conserving adipose tissue
Explanation:im taking the test nd thats the right anwser ♀️
What is deoxyribose?
A. n acid found in DNA
B. a sugar in DNA
C. a pigment found in RNA
D. a nitrogenous base found in DNA and RNA
Help???????????????????????????????
???????
Answer:
the fish is the PREDATOR
Answer:
Prey
Explanation:
This jet streams are south what kind of weather do we get
Answer:
The south gets warm air.
Explanation:
The Earth splits into hemispheres, therefore, the north gets cold and the south gets warm weather. The southern hemisphere is closer to the equator.
What is technology?
Answer: the application of scientific knowledge for practical purposes, especially in industry.
Explanation: Have a blessed day hopefully this helped!
One of a carbohydrate is a building block of a plants cell wall it is
cellulose is a building block of a plant cell wall
Type the correct answer in the box. Spell the word correctly.
What type of disease is often the cause of death for a patient with HIV/AIDS?
Keith was diagnosed with HIV infection a few years ago. Recently his doctor diagnosed a tumor in his body. Doctor inferred he is probably suffering from __________
Tuberculosis (TB)
it is the correct answer
Magnesium deposits are most likely to form from:
precipitation
condensation
evaporation
respiration
Answer:
precipitation
sorry I'm not sure how to explain that
Electrons move about the nucleus of an atom in regions called
Answer:
atomic orbitals or subshells it the same name
where do cells store waste
Answer:
Vacuoles
Explanation:
What are plasmids?
A. Enzymes that bond genetic materials together
B.small rings of bacterial DNA
C. Enzymes that cut DNA
D. Simple organisms with only one chromosomes
Answer:
b. small rings of bacterial DNA
Answer:
B
Explanation:
The plasmid is a small, extrachromosomal DNA molecule within a cell that is physically separated from chromosomal DNA and can replicate independently. They are most commonly found as small circular, double-stranded DNA molecules in bacteria; however, plasmids are sometimes present in archaea and eukaryotic organisms.
Because the 17 and the 13 Cicada have different breeding seasons and experience temporal isolation, what will probably never happen between the different species?
Answer:
Mutations in the gene pool
Explanation:
Compare the circulatory system of a plant and animal.
Answer:
vascular plants have a top and bottom ,a trunk and branches ,leaves or needles the bottom is a system of roots. Xylem and phloem make up transportation system of vascular plants. Xylem is made of vessels that are connected end to end to move water around.
Open and closed circulatory systems are found in animals. blood vessels transport all guilds into a cavity. when the animal moves the blood inside the cavity moves around the body in all directions. most invertebrates like crabs, insects, snails etc...have an open circulatory system.
What type of electron is available to form bonds?
Answer:
The electrons that are available to form bonds are known as valence electrons.
Explanation:
The electrons that are available to form bonds are known as valence electrons. I hope this answer is helpful.
The type of electron available to form bonds is a valence electron
What type of electron is available to form bonds?Valence electrons are the electrons in the outermost energy level or shell of an atom. These electrons are involved in the formation of chemical bonds between atoms.
Valence electrons are responsible for determining the chemical properties and reactivity of an element. When atoms come together to form chemical bonds, they do so by sharing, gaining, or losing valence electrons. The interaction of valence electrons between atoms allows for the formation of covalent bonds, ionic bonds, or metallic bonds, depending on the specific circumstances.
Therefore, valence electrons are crucial in the process of bonding between atoms.
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A cell of an organism has four chromosomes.It undergoes a process at the end of which two daughter cells are produced. Each daughter cell has four chromosomes. Which process is described?
a.fertilization
b.meiosis
c.mitosis