Which statement is not true regarding nuclear reactions? alpha, beta, and gamma are types of radiation. nuclear reactions involve breaking and forming covalent bonds. nuclear reactions involve a change in an atom's nucleus. radioactive elements have unstable nuclei.

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

Often on a topographic map, every fifth contour line is darkened. what is this line called? a. key b.slope c.benchmark d. index contour

Express the following number in scientific notation. 0.026890 =