How does crossing-over increase variation in genes?

Which structure is common in animal cells but rare in plant cells?

Definition for the ability to distinguish details on an object

Reasons why a renewable service is more valuable than a non-renewable service

What types of matter are made of atoms?

What is the function of bile? causes fats to dissolve in water digests fats and some vitamins an enzyme which accelerates digestion all of the above?

What factors determine soil consistence?

What are the levels or organization in biology?

In what grade do you take biology I took it in 6th grade, just wondering

What type of mutations do scientists look for in a molecular clock

What is the Law of Conservation of Energy? Question 10 options: Energy cannot be created, but can be destroyed as it transforms. Energy can be created and destroyed as it converts to other forms.