Respiration is a ........ process.

During hibernation,the body temperature of warm-blooded animals remains:

Give differences: Respiration and Cellular Respiration.

Which of the following statements best summarizes the relationship between respiratory rate and body size in related animals?

Differentiate between internal respiration and external (surfacial) respiration.

Select the correct statements from the following regarding gaseous exchange in plants.
$A$. $A$ terrestrial plant has many air spaces between the cells of leaf and root.
$B$. Woody trees have stomata on bark.
$C$. In aerated soil,oxygen dissolved in water enters root tissue by diffusion.
$D$. Vascular bundles provide thin and large surface area for exchange of gases.
$E$. Carbon dioxide and water vapour diffuse into lenticels.