Changes in the environment result in a. geologic eras c. plate tectonic changes b. physical changes in species d. all of the above select the best answer from the choices provided a b c d

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind

Some substances but not other can cross the (blank) membrane of a cell

How much does one sucrose molecule weigh in grams?