Which of the following is an example of primary succession?
wetland regrowth after a severe storm.
forest regrowth after an ice storm.
plant development on a layer of rock deposits.
an abandoned farm becoming a meadow.

Explain two reasons you think it is important for scientists to search for new ways to treat cancer

How does the molecular clock work? a. it analyzes the brain functionality of two different species. b. it examines and compares the physical characteristics of two different species. c. it illustrates relationships between two different species. d. it compares the number of mutations that exist in the dna of two different species.

Suppose a suitcase has a mass of (m) 30 kg and a net force (n) of 10 kg*m/s. what is the acceleration rate of the suitcasein m/s? show your work to support your answer