What are the main components needed to insure ecosystem stability? a.
estuary, savanna, and tundra
b.
primary and secondary succession
c.
food, water, shelter and biodiversity
d.
moderate climate, sufficient space, and adequate sunli

Scientific thinking: what clues about biology might road kill provide?

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

Which of the following are the ingredients that go into the plant and are needed for photosynthesis? select all that apply. 1.) soil 2.) seeds 3.) carbon dioxide 4.) minerals 5.) glucose (sugar) 6.) water 7.) light energy (sunlight) 8.) oxygen 9.) air