4. A boy with blood type B finds out that his mom's blood type is B and his dad's
blood type is AB. He is worried that his dad might not be his biological father
since they don't have the same blood type. Is it possible for a mom with B
blood and a dad with AB blood to have a son who is B? Explain and show
your understanding.

Impressions of tropical swamp plants were observed on rocks in polar regions. the impressions were dark black imprints, which means the fossils are examples of ( 1 ) the fossils tell us that polar regions ( 2 ) ( 1 ) a. carbonization b. mineralization c. trace fossils ( 2 ) a. had tropical plants that can grow in ice b. might have had a diffierent climate in the past c. will have abundent vegitation

Determine which of the two measurements in each set is lesser.10°f or 20°ca. 10-fb. 20°c

Which types of seismic waves travel through earths interior? select all that apply. a) l waves b) p waves c) s waves