Energy in most ecosystems must flow through autotrophs because

Which greenhouse gas has an average lifetime in the atmosphere of a few weeks to thousands of years?

The gametophyte is much larger than the sporophyte in all of the following except a. mosses. b. liverworts. c. pine trees. d. horsetails.

Which fossil fuel should be available for the longest time if current usage continues?

3. The variance in a gene, which occur on a fixed spot on a chromosome is called a/an A. Allele B. Cell C. Centromere D. Nucleus

How many plant cells have a single large That Is filled with fluid

Which of the following is not a mechanism of microevolution? Group of answer choices migration (gene flow) natural selection speciation genetic drift

What weather factor is also a measurement of energy held within the air? Humidity Pressure Temperature Wind

What is the probability that, in an organism with a haploid number of 12, a sperm will be formed that contains all 12 chromosomes whose centromeres were derived from maternal homologs?

The growth rate of a local population is dependent on the birth rate minus the death rate and

If a volcano were to erupt and release large amounts of ash into the air, how would this affect the climate on Earth? a. The ash would increase the greenhouse gases, thus increasing temperature. b.