The Krebs cycle occurs in the mitochondrion of a cell and it is also called the citric acid cycle or the tricarboxylic acid cycle. the Krebs cycle is part of the the mechanism of cellular respiration.<span>
5 energy conversions happen in each cycle so in </span><span>when both acetyl-CoA molecules go through the Krebs cycle </span>total 10 conversions happen.
Answer: Option C) "excludes agricultural runoff"
Explanation:
The Clean Water Act (CWA) established in 1972 is a federal law made in United States to address the adverse effect of water pollution. The act was aimed to maintain the physical, chemical, and biological integrity of the nation's waters.
A major shortcoming of the Clean Water Act (CWA) is agricultural runoff which is a nonpoint source (NPS) pollution. Large scale agriculture activities have an adverse impact on groundwater and surfacewater as they carry heavy fertilizer, pesticide and water inputs.
The federal CWA establish water quality standards and total maximum daily loads (TMDLs) to asses the pollution caused by agricultural water with the help of regulatory mechanisms.
Hence, the correct option C.
Answer:
He is reffering to adaptation over time
Explanation:
A "hypothesis" is just an idea or proposal which someone comes up with
to try and explain a given set of observations. A hypothesis must be:
a)
falsifiable/disprovable
b) testable
c) have predictive value, in
order to be taken seriously by scientists, and to begin its journey
towards the status of "theory".
If it is an interesting proposal and is
deemed to possess these 3 criterion, scientists will start to
investigate it: what can it predict, what does it explain, is it
compatible with all the relevant data/observations? If it is supported
by enough experiments and/or observations, and gains acceptance by
enough of the "scientific establishment" (ie, by enough scientists who
are accepted and admired by their peers), at some undefinable point it
becomes a "theory". It can still be disproven at any time, but until
that happens it will remain a "theory" and may even graduate to the
status of "well supported theory", such as the theory of gravity or
relativity. At NO point, however, is ANY theory ever considered by
scientists to have been "proven": in the scientific world, all truth is
"relative". and provisional.
