Which characteristics can be used to differentiate star systems? 1. The number of stars in the system

2. The level of dust and gas

3. The age of stars in the system

What two fields of study provide the core information that is used to classify organisms?

The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2

What is the genotype of the male circled in pink? ο χου lo xay xaya done answer was xay