What is primary sucession? a
When there are too many species in an ecosystem.
b
When a species dies out in an ecosystem.
c
When pioneer species start a new ecosystem in a lifeless area.

The first element on the periodic table of elements is carbon. a. true b. false

Pls! plant cells and animal cells were observed under a microscope. the characteristics of two cells are listed below. cell p: does not capture sunlight cell q: has cytoplasm but no chloroplast which statement about the two cells is correct? cell q also has a cell wall. cell q also has large vacuole. cell p also has a large vacuole. cell p also has a cell membrane.

A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?