Summary: In 100-150 words write down what Rh Factor is and 2 interesting facts you learned. Sentence Frames:

In the article, Title, I learned that…
Rh Factor is… Based on the article, Title, I learned ...
Not many people are aware of Rhesus Factor, but it is …

The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of

The part of the eye that closes and opens to let light in is .