Asample is in the second half-life. what percent of the sample is stable at this point?
12.5%
25%
50%
75%

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

What sre the effects of hemolytic disease of a newborn

The bacteria inside a tube worm would be analogous to what organism in the ocean ecosystem near the waters surface? a. photosynthetic algae b. shrimp c. clown fish d. parasitic lamprey