Studies of embryos of various species have shown a series of genes that control the organisms basic body plan and development of tissues and
organs. These series of genes are referred to as: *
1. Lac Operon
2. Trp Operon
3. Exons
4. Hox Genes

The answer is 4. Hox genes. Hope this helps :)

Explanation:

the answer is admiramos

the rule for verbs is whoever you are referring to (in this case 'nosotros'), you need to change the ending of the word.

nosotros - amos

yo - o

tu - as

el, ella, usted - a

ellos, ellas, ustedes - an

(examples: nosotros bailamos (instead of bailar) or yo hablo (instead of habla)