Paleontologists study the remains of organisms that lived in the past. many of these remains are preserved in rocks.
which two parts of the earth system is a paleontologist involved in?
a.
lithosphere and atmosphere
b.
biosphere and lithosphere
c.
hydrosphere and atmosphere
d.
biosphere and magnetosphere

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

Which beat describes the brain stem

7. describe two strategies that parents can use to cope with stress. 8. describe the three types of childcare available to families. 9. what can parents do to be more involved in their children's education at home and at school? 10. which factors should a parent consider when choosing a childcare option?