What do biologists use to establish whether or not two organisms are the same species

What is a source of fossil fuel

What is the biggest creature now in the entire world?

A tissue is distinct group of cells that have similar structures and functions

Based on the data shown in the table, what question is most likely being tested?

Which of the following particles is the fundamental unit of all matter, both living and nonliving? a) neuron b) electron c) atom d) cell

How is the United Kingdom planning to use driverless cars beginning in 2015?

Is selection more effective against recessive alleles in haploid or diploid organisms?

Why are lipids and proteins free to move laterally in membranes?

Most genes in prokaryotes and eukaryotes are regulated primarily at which level of expression

Which of the following is an environmentally responsible water consumption technique? A) washing your favorite outfit by itself in the washing machine B) watering your garden between 10pm and 10am C) leaving the hose running the entire time you wash