Sperm whales an species maintain their populations close to carrying capacity .

a. r-selected
b. k-selected

Compare and contrast the adaptations of free-living flatworms and parasitic flatworms

Below, the levels of organization in a multicellular organism are shown from least to most complex. which level of organization can be described as several different types of tissues working together to perform a common task?

Where can dna be found in a prokaryotic cell