Reabsorption of the metabolic products along the kidney tubules is made possible by the
closeness of the intestine to the kidney
convoluted nature of the tubules
convoluted tubules in the medulla
network of capillaries around the convoluted tubules
connecting the main collecting tubules to the kidney tubules
Correct answer is D
No explanation has been provided for this answer.
In the anaerobic stage of respiration, the net ATP molecules produced per glucose molecule
one
two
three
four
five
Correct answer is B
No explanation has been provided for this answer.
The cell membrane of a cell is said to be semi-permeable because
it allows only large molecular substances to pass through it into the cell
it is actively involved in energy production in the cell
it actively allows all substances to pass through it by diffusion
it is actively selective in allowing substances pass through it
fatty acids are only the building blocks of the membrane
Correct answer is D
No explanation has been provided for this answer.
symbionts
omnivores
heterotrophs
autotrophs
carnivores
Correct answer is C
No explanation has been provided for this answer.
Higher organisms use a transport system and not diffusion only to distribute nutrients because
the ratio of their surface area to volume is small
metabolic waste products diffuse to the surface of the organisms
the rate at which nutrients and other substances diffuse increases
substances to be transported move shorter distances to reach the numerous cells
the internal structures of the organisms are in direct contact with the environment
Correct answer is A
No explanation has been provided for this answer.