What is difference between covalent  and ionic bonds? 

The equation below represents a biological process. Where is this process completed?  

Which invention from the 17th century allowed for the development of the modern cell theory?

During transcription the DNA base sequence is transcribed into a complementary mRNA sequence. A codon table like the one shown below lists the amino acids coded for by particular triads of mRNA bases. A segment of DNA has undergone a mutation in which one nucleotide has been changed. The original codon resulting from the original DNA sequence was UUA and the new codon sequence is CUG. Use the codon table to determine whether or not this mutation will cause a change in the phenotype of the organism.  

Your backyard represents a(n) _______ while the crickets in the backyard represent a(n) ______.

Animals that feed on both plants and other animals are called

A scientist wants to determine if classic rock music will improve test scores for students in college Biology. Which of the following parts of the experiment would be a independent variable?

Histones

In the figure, which structure is the liver?

The diagram below illustrates a biochemical process that occurs in organisms. What is another name for the substance labeled “catalyst”?