Which factor(s) would favour evolution by natural selection?
I. Long lifespans II. Favourable characteristics acquired by individuals during their lifetime III. Variation within a species A. II only B. III only C. I and II D. I and III
Answer/Explanation
Question
The graph shows the amounts of two substances present in food ingested by a healthy person as it moves along the gut.
Answer/Explanation
Question
The plant in the diagram has vascular tissue and reproduces by spores.
To which phylum does the plant belong? A. Bryophyta B. Filicinophyta C. Coniferophyta D. Angiospermophyta