Express the following number in scientific notation. 0.53000

Which situation is not an example of a prezygotic barrier? Two species of turtles breed at different times of the year. Two species of flowers attract different pollinators. Two species of birds display different mating dances.

How does water influence weather and shape the Earth's surface?

If the mass of a material is 49 grams and the volume of the material is 9 cm^3, what would the density of the material be? I need the answer as well as the unit

The density of an object with a volume of 60. omL and a mass of 400.0g is ... A. 0.150 g/mL B. 2.89 g/mL C. 5.50 g/mL D. 6.67 g/mL

Made of protein and a long, single, tightly, coiled dna molecule visible only when the cells divide

In which stage of growth do plants rest or grow very little?

Scientists have debated the evolution of three life forms: reptiles, birds and dinosaurs. After many years of reviewing fossil records scientists proposed the evolutionary relationship seen above in the cladogram.

The PNS is divided into several subsystems. What two subsystems form the first major division of the PNS? sensory and motor somatic and autonomic parasympathetic and sympathetic CNS and brain

Consider the model of the food chain. Imagine there is a herbicide poison spill and all the grass is killed. How will this influence the food chain model? A) The grasshoppers will die out. B) All of the consumers will decrease.

A mutation in a dna strand is least likely to affect the cell when the mutation: