1. To a single species.
2. Phylum.
3. Phylum and Kingdom.
4. Mammalia.
The pine tree has unprotected seeds; the apple tree has seeds in fruit. The pine tree is vascular; the apple tree is a seedless, nonvascular plant. The pine tree thrives in warm climates; the apple tree thrives in cold climates.
Answer:
the concentrations of salt water because its being controlled by the scientists.
Explanation: the iv= between the control and expariment.
dv= data or out come
constant+ not changed at all
2010: the census of marine life is completed.
2011: Mariana Trench exploration
2012: first solo dive into the Mariana Trench. hope this helps. :)
D I think because the trees block out all the sun
