After 34.8 min a 43.5g sample of Fr-215 has decayed down to 10.0g what is its half life

Monkeys and bats have similar bone structure in their forelimbs. however, monkeys have longer forelimbs to use for climbing and swinging in trees. bats have shorter forelimbs to use for flight. which term best describes how monkey and bat forelimbs are related to each other? a. homologous b. embryonic c. analogous d. vestigial

How have the greenhouse gasses increased from the year 2000 to 2018

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: