Rate of reaction will increase with the presence of a catalyst.
This is due to catalysts providing an alternative reaction pathway with lowered activation energy required, allowing an increased rate of reaction.
If I have a batch of pea plants with purple flowers that I grew by crossing plants that had purple flowers (PP) with plants that had white flowers (pp), purple flowers (dominant) will be expressed in this batch of pea plants.
Answer:
Which of the following, if discovered to be true, would most seriously weaken the support for the researchers’ prediction?
The correct answear is B. Naltrexone inhibits morphine from triggering the migration of intestinal bacteria into the bloodstream.
Explanation:
Naltrexone is a non-selective opioid antagonist, it competes with these at the level of the receptors and thus reduces their effects.
The responses A, C, D and E does not weaken the support for the
researches ´ predictions, and are not relevant to the argument.
Atoms gain electrons to form anions.
Atoms lose electrons to form cations.
Back in middle school, my chemistry teacher taught me a good way to remember whether an ion was a cation or an anion. When an atom loses an electron, it becomes positive, and when an atom gains an electron, it becomes negative.
Cation sort of sounds like “cat,” which is positive (Yay! Cats!).
Anions, on the other hand, sounds like “onion,” which is negative (Ew! Onions!).
There’s other ways of memorizing it, but this way was the easiest for me.
-T.B.
Permanent tissue is composed of cells that have lost the ability to divide and has attained a definite shape or form.
There are three main types of permanent tissue. 1) simple, 2)complex, 3) special tissues.
