Why if a control group is not included in an experiment is difficult to draw a valid conclusion

Which characteristics do all prokaryotes and eukaryotes share?

A female reproductive cell is

What volcanoes are located in the middle of a content

Think and discuss: Suppose there are two homologous chromosomes. Each chromosome contains a single mutant allele in different parts of the chromosome.

How accurate is DNA and fingerprint technology, and when did it emerge? What level of human error still plays a role in this type of evidence and data analysis?

How many cell divisions would it take to produce at least 1,000 cells from one cell? (When one cell splits in half during cell division, the result is two new cells. Each of those cells can divide into two more and so on.) Answer (256?)

IBS is caused by a reaction to proteins in foods

A 4 mL tube of blood contains 7.2 mg of cholesterol, what is the mg% of cholesterol (i. e., how many mg of cholesterol are in 100 mL of blood) ?

What are the exergonic reactions that provide living systems with energy (give two examples) ?

A patient with arthritis is on nsaid therapy. what should be evaluated by the nurse to determine the effectiveness of nsaid therapy?