Which of the following statements is true about plants?
a. plant cells have membrane-bound nuclei.
b. plant cells do not have chloroplasts.
c. plant cells use up oxygen for photosynthesis.
d. plant cells have cell walls made of lipids.

The movement of tectonic plates in two different locations is shown below: two blocks labeled location a and location b are shown. at location a the top layer of the block shows two horizontal arrows pointing towards each other. small dunes are shown in the middle between the two arrows. the block labeled b has a vertical line in the middle. on the left of the line there is an arrow pointing down. on the right of the vertical line there is an arrow pointing up which statement is most likely true? subduction may occur in both locations. earthquakes may occur in both locations. subduction may occur in location a only and a volcanic eruption may occur in location b only. an earthquake may occur in location a only and a volcanic eruption may occur in location b only.

The activity of the modern sample is 1.10 bq . how long does that measurement take?

Asegment of dna that codes for rna and a protein is a