This image shows the Hox genes for a fruit fly, and which parts of the fly embryo and adult they code for. Describe a possible developmental problem in the fruit fly if the fifth (yellow) Hox gene was mistakenly activated in the head area.

If a grape were placed in a hypertonic solution what would happen and why?

Which describes a grizzly bear’s habitat?

True or false: (a) the strings of little red dots represent carbohydrates. (b) the model is called a bilayer because there are two main types of molecules present, lipids and proteins. (c) the many black lines represent amino acid tails. (d) this model shows membrane transport. (e) the blue ovals are hydrophobic. (f) the blue ovals represent phospholipid heads.