Describe three human activites that make slopes unstable

Rewrite the following sentence to make it true. Geologists subdivide periods into eras

Identify four threats to the biodiversity in your own environment and briefly explain each threat

A lab investigation involves using food coloring to track diffusion which action should students take to avoid damaging their clothing?

What are the two main components of blood? a. oxygen and lipids b. plasma and red blood cells c. platelets and white blood cells d. vessels and capillaries

I'm just a single cell; An extremist without a central organelle. What domain am I?

If you looked at heart cells, would you expect to see a lot of mitochondria or only a few? Why?

Which of the below is TRUE regarding desertification? a. It is likely to happen in any type of climate b. It produces rich desert ecosystems c. It is not usually impacted by droughts or climate change d.

What is considered a pre existing medical condition?

Humans do not eat the algae directly from the ocean, so how can we still be affected by it?

In an effort to control the ongoing cholera epidemic affecting Haiti, health officials are considering the use of cholera vaccines. One difficulty they are facing is the limited vaccine supply.