Answer:
Active transport moves molecules and ions from lower concentration to higher concentration, passive transport moves molecules and ions from a higher concentration to lower concentration without any energy.
Explanation:
Active transport moves molecules and ions from lower concentration to higher concentration with the help of energy in the form of ATP. On the other hand, passive transport moves molecules and ions from a higher concentration to lower concentration without any energy.
They are not aware of each other because usually they are sesperate and don't live together.
Answer:
a. vitamin d and vitamin b12
Explanation:
Vitamins are groups of organic compounds that are essential in small quantities for healthy human growth, metabolism, development, and body function. Vitamins are found in plants and animal foods or sometimes produced synthetically. Deficiencies of specific vitamins produce specific disorders. Vitamin d and vitamin b12 are important vitamins that the body needs. The body produces vitamin D when the skin is exposed to sunlight and it is very essential for strong bones, while vitamin b12 is naturally present in meats. Deficiency of vitamin d in the body can result in bone problems (including teeth) and it has also been linked to depression. Vitamin b12 deficiency can also affect mental functions by causing disorientation, memory loss, depression and confusion.
From the question, the elderly woman may be developing a deficiency of vitamin d and vitamin b12.
Answer : A : They live in extreme environmental conditions.
<h2><u>Answer:</u></h2>
In the 1950's, natural chemists Stanley Miller and Harold Urey, led a test which exhibited that few natural mixes could be shaped suddenly by reenacting the states of Earth's initial climate. In the wake of enabling the examination to keep running for multi week, they broke down the substance of the fluid pool.
The Miller– Urey trial (or Miller analyze) was a concoction explore that mimicked the conditions thought at an opportunity to be available on the early Earth, and tried the compound beginning of life under those conditions.
