Vernon is studying the population of deer in a tract of forest. He gathers the following data. Birth rate: ~50 deer/year Death rate: ~70 deer/year Which additional observation would support the conclusion that the deer population is NOT changing size from year to year, meaning that the net population change is 0? A. About 20 deer per year immigrate to the tract of forest. B. About 20 deer per year emigrate from the tract of forest. C. The average life span of a member of the deer population is 20 years. D. If a deer survives its first year of life, its average life span is 20 years.

How do chloroplasts set plants apart from other living things

Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.

Describe the relationship between isotonic solutions, equilibrium, and water movement into and out of a cell.