Match the example to its term Cell
Tissue
Organ
Organ system

1. Brain
2. Brain, spinal
cord, and nerves
together
3. Nervous tissue
4. Neuron

If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?

What molecule contains an organisms genetic material, passed down from parents to their offspring

The color of the fur is the genotypephenotype.the genetic combination of alleles that determine the fur color is called the genotypephenotype.