Dentify the abiotic limiting factor from the choices below.
a. biodiversity
b. food
c. water
d. plant cover

If two parents who's blood types are both b produce a child that has blood type o, what can you say about the parent's genotybes? oa) one is ii ob) one is ibi oc) both are bi od) nothing, this is impossible

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c.ozone layer hole d.increase in sea levels

The activity of the modern sample is 1.10 bq . how long does that measurement take?