Describe how natural selection can sometimes lead to the persistence of harmful or even lethal alleles. include an example.

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.

An easy way to calculate the amount of energy available at each level is to what?

Explain the cellular functions that occur when antibiotics attack a bacteria cell. a. antibiotics target the cell wall, cell membrane, and the processes of protein and nucleic acids production in bacteria to rupture the cell. b. antibiotics create dormant resistant endospores to preserve the genetic material and rupture the cell. c. antibiotics target the cell wall and form a bridge-like connection to form conjugation. d. antibiotics use binary fission to grow twice its size, replications its dna, and split into two cells.