In the terrestrial habitat,which of the following factors affect temperature and rainfall conditions?

It is much easier for a small animal to run uphill than for a large animal,because

Which of the following statements is correct?

Aerobic respiration produces ......... energy from glucose. (in $kcal$)

Select the correct option to complete the following statements:
$(1)$ The $TCA$ cycle begins with the condensation of $OAA$ and water with $Acetyl-CoA$ to yield $Citric$ $acid$.
$(2)$ In fermentation,yeast converts glucose into ethanol under $Anaerobic$ conditions.

Match the following and choose the correct option from those given below.

Column $A$	Column $B$
$A$. Molecular oxygen	$(i)$. $\alpha$-Ketoglutaric acid
$B$. Electron acceptor	$(ii)$. Hydrogen acceptor
$C$. Pyruvate dehydrogenase	$(iii)$. Cytochrome $c$
$D$. Decarboxylation	$(iv)$. Acetyl $CoA$