21. The table below shows description of sizes of glomeruli renal tubules of two animals which are
living in different environments
Animal X
Animal Y
Glomeruli
Large and few
Small and many
Renal tubules
Short
Long
(a) Name the likely environment in which each animal lives
: (i) Animal x
(ii) Animal y​

Which of the following statements about c4 carbon fixation is not true? a c4 carbon fixation is an adaptation for plants exposed to high light intensityb. c4 carbon fixation occurs in more plants than c3 carbon fixation.c c4 carbon fixation is more common in areas of high temperatures than c3 carbon fixation.d. c4 carbon fixation occurs in the inner cells of a leaf rather than the entire leaf.

In addition to seeds, which of the following characteristics are unique to the seed-producing plants? a) sporopollenin b) lignin present in cell walls c) pollen d) use of air currents as a dispersal agent e) megaphylls

Select the correct answer from each drop-down menu proteins are