Because humans cannot produce their own food and must eat what type of organism are they

How does the structure of fats enable them to hold so much energy?

Rank the following one-base point mutations (from most likely to least likely) with respect to their likelihood of affecting the structure of the corresponding polypeptide: 1. insertion mutation deep within an intron 2. substitution mutation at the third position of an exonic codon 3. substitution mutation at the second position of an exonic codon 4. deletion mutation within the first exon of the gene a) 1, 2, 3, 4 b) 4, 3, 2, 1 c) 2, 1, 4, 3 d) 3, 1, 4, 2 e) 2, 3, 1, 4

The presence of iron oxides in rocks, formed during a specific time period, can be used as evidence of oxygen in the atmosphere during that time period. question 18 options: true false