Which of the following are necessary for a seed to germinate? moisture content of seed must be at least 9% moisture content of the seed must be less than 9% certain enzymes in the seed are activated temperature must be above 80 degrees temperature must be below 80 degrees

Look at the figure above. which atmospheric layer has around 80 percent of the mass of the earth's atmosphere? (hint: it's where the clouds seen on earth are formed.) a. exosphere b. troposphere c. stratosphere d. thermosphere

When species lose their habitats they may..

Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation