The 1st organism in a food chain must always be what type of organism?

Which of these is a major trend in land plant evolution? a) the trend toward smaller size b) the trend toward a gametophyte-dominated life cycle c) the trend toward a sporophyte-dominated life cycle d) the trend toward larger gametophytes

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity