Which are examples of human-caused environmental changes?

Check all that apply.

•clear-cutting
•pollution
•global warming
•volcanoes
•earthquakes

Using meiosis, the sporophyte produces spores that are .

Modern sea star larvae resemble some primitive vertebrate larvae. this similarity may suggest that primitive vertebrates

Attached earlobes are a reccesive trait in humans. in the tree below, people with attached earlobes are shaded in. which best describes labeled x in the tree? a: a female with one recessive allele b: a female with no recessive allelesc: a male with no recessive allelesd: a male with one recessive allele