All of the following are characteristics of igneous rocks except:
a.
igneous rocks are always thin and brittle
c.
some igneous contain vesicules
b.
igneous rocks contain interlocking grains
d.
igneous rock are composed of crystals

How is the male reproductive system different from other body systems? it isn’t necessary to vital signs. it monitors other body systems, and adjusts if necessary. it transports items from one system to another. it is the only system that produces hormones in the male.

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

Which of the following words best matches this definition: the process in which the best adapted organisms survive and pass on their traits, while those that are not well adapted do not survive to pass on their traits. question 3 options: acquired selection natural selection artificial selection organic selection