An experimental result is called statistically significant when: 1. experimental and control subjects are randomly assigned
2. the experiment is by double-blind
the experiment was well designed
the results are unlikely to be due to chance alone

How do accessory pigments chlorophyll?

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

How many chromosomes does each human cell contain? a. 23 chromosomes b. 26 chromosomes c. 43 chromosomes d. 46 chromosomes