Xavier drew a diagram to compare the role of oxygen and hydrogen in photosynthesis. Which label belongs to the area marked x under oxygen ?

Which events are likely to be catastrophic to an ecosystem? select the three correct answers.a-hurricane.b-steady population growth.c-seasonal flooding.d-introducing of an aggressive invasive species.e-tsunami.

100 points and brainlest its 6th grade work compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city,

All other things being equal the size of a population will decrease if