Imagine standing on a sandy beach on a warm, sunny day facing east. the sand and you are hot. you want to catch a cool breeze on your face.

which way should you face?

a.
toward the land

b.
toward the north

c.
toward the south

d.
toward the water

e.
toward the sky

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

Which of the following best describes the expensive tissue hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.

What are the three different shapes or structures shapes or structure of carbon-based molecules?