Why must body systems work together?

This is the science of genes, heredity and variation of organisms.

2) A population of animals is permanently split by a natural barrier into two separate populations in different environments. What will likely result after a long period of time? A) The evolution of the two populations will be identical.

What might a scientist analyze?

An organism that produces its food by photosynthesis

How many electrons arein britannium

Use the drop-down menus to complete the sentences. An iris will bloom during the w months because the nights are A poinsettia will bloom during early w because the nights are

Size, shape, and position of grains that make up a rock

Which of the following statements cannot be tested by science?

Can you explain how salt from the sea is returned to the land

A species of rabbit is preyed upon by foxes, which are preyed upon by wolves. Humans decide to open a hunting season on the wolf population.