1.1.4 Quiz: Evidence for Evolution Fossils of a species of bird are found in layer 3. Which layer is most likely to
have organisms that lived at the same time as the bird species?
12
11
10
8
7
5
6.
3
2
A. Layer 7
B. Layer 10
Ο Ο Ο Ο
C. Layer 5
D. Layer 2

Embryonic stem cells are cells derived from an embryo. these cells can be used to create new tissues for patients suffering from certain illnesses and disorders. which statement best summarizes why the use of embryonic stem cells could be seen as unethical?

Name the following: (a) category of pathogen that causes diseases, like common cold and mumps. (b) the microorganism that requires a host to produce.

Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit