Some organisms, like the platypus, are difficult to classify as they have characteristics which fall into multiple categories. Which characteristics of a platypus would lead scientists to classify them as mammals?

In what era did modern man first appear? Precambrian, Paleozoic, Mesozoic, Cenozoic

5. Traditional classifications tended to take into account primarily A. extinct organisms. B. RNA similarities. C. DNA similarities. D. visible similarities and differences.

True or false? a commonly held belief about diaphragmatic breathing is that breath has a spiritual quality to it. question 7 options: a. True b. False

Scientists who study nature on different levels, from a local to global scale are called A communities B biosphere C ecologists D immuniologists

How does a fetus get nourishment until it is born

What benefit do offshore oil rigs have on the environment? The locations of these structures prevent migrating animals from interfering with humans. The oil removed by this structure can be used to power ships.

What will happen if a plant gets diffrent amounts of sunlight?

What is the relationship betweeb sunlight and chlorophyll

Which is the best conclusion the scientist can make based on the observation? A. the nucleic acid is a protein B. the nucleic acid is DNA C. The nucleic acid is RNA D. More tests would be needed to determine the type of nucleic acid in the sample

Calculate the density of mercury to the nearest tenth. Mass of mercury = 57 g Volume of mercury = 4.2 mL