Dichotomous keys ask open-ended questions about animal behavior. open-ended questions about easily observable characteristics. yes-or-no questions about animal behavior. yes-or-no questions about easily observable characteristics.

D.) yes-or-no questions about easily observable characteristics.

enhanced global partnerships and exploration capabilities may advance international preparedness for protecting the earth from catastrophic events such as some asteroid strikes, advancing collaborative research on space weather and protecting spacecraft by developing new means for space debris removal.

meiosis is the first to occur after the nuclei of opposite of opposite mating types fuse