Do penguins have thick skin

Explain in detail how galen, a physician during the middle ages, expanded on hippocrates' theory of the four humors and explain what he believed each humor represented. (site 1)

In the steps of the scientific method, what is the next step after formultating and objectively testing hypotheses

Cholesterol belongs to which category of organic molecules?

Estimating the Age of a Rock Layer O mun Use what you know about relative dating to choose the correct answers from the drop-down menus. Ethan determines that layer B is 3.5 million years old. Due to the he can estimate that layer A is years old

How are influenza viruses classified? A. by their different shapes B. by their genetic material C. by their protein structure D. by their type of movement

Which statement is correct? A. Both plants and fungi undergo photosynthesis. B. Both protists and fungi are eukaryotic. C. Like some prokaryotes, fungi are autotrophic. D. Both animals and fungi lack cell walls.

In an ecosystem, bees are responsible for the pollination of flowers. Over time, the number of bees in the population have increased. Which of these best explains why the number of flowers in the population have also increased?

What is a likely consequence of continued human population growth?

Why is an organisms role important for its community?

Briefly describe what is meant by the semiconservative nature ofDNA replication?