Active transport is the movement of molecules or ions against a concentration gradient. Passive transport is the movement of molecules or ions from an area of higher to lower concentration.
Passive transport does NOT require energy
-Diffusion - small uncharged molecules
-Osmosis - water
-Facilitated diffusion - glucose
Active transport REQUIRES energy
-Ion pumps
-Endocytosis
-Exocytosis
To establish causation sociology, there are three key factors namely correlation, time order and ruling out alternative explanations. correlation gives the difference between the alternatives to be considered, time order gives the occurrence of events chronologically, finally, the ruling out alternative explanation gives one the chance to get the best alternative
"Compound" is the one among the following choices given in the question that is a <span>substance formed by the chemical joining of two or more elements in definite amounts. The correct option among all the options that are given in the question is the first option or option "A". I hope the answer has helped you.</span>
Answer:
1. Earth's ozone layer is responsible for absorbing infrared and ultraviolet rays from the sun.
2. Changes in the composition of the atmosphere have caused gradual changes in earth's climate, causing changes in plant and animal life that contributed to mass extinctions.
3. Chemical chlorofluorocarbons (CFCs) have been banned and replaced with hydrochlorofluorocarbons (HCFCs).
4. Naturally occurring volcanic eruptions can produce large amounts of gases which contain sulfur. These gases accumulate in the atmosphere in the same way as man-made sulphuroxides.
Sorry, but after that I don't know.
Explanation:
Answer:
monosaccharides!
Explanation:
- these are basic unit or simple sugar that make up the more complex sugars such as oligosaccharides and polysaccharides
- monosaccharide is a greek word ,mono meaning singular and sacchar means sugar
general formula:-
(CH2O)n,where n is 3 or greater than 3
- it is the most abundant sugar in nature
- It is present in different fruits and vegetables
