How long does it take for a package to come from uk to arizona?

In a plaque assay, a microbiologist counts 20 plaques on a plate. How many plaque-forming units can be assumed to have been present in the original bacterium-virus mixture on the plate if there was no dilution of the mixture prior to plating

X-rays cannot X-rays cannot pass through Earth's atmosphere. Which of these is the best location to place a telescope used to observe x-rays from stars? A-mountain B-top of building C-space D-high-flying aircraft

How is the thrush adapted to their habitat

An organism's physical appearance is its

Which statement describes an effect of the gulf stream? A-it brings warm water to the Gulf of Mexico from the North Atlantic B-it carries cold water to both of earths poles C-it keeps icelands capital warmer than new york city in the winter D-it

What factors determine soil consistence?

What are the levels or organization in biology?

In what grade do you take biology I took it in 6th grade, just wondering

What type of mutations do scientists look for in a molecular clock

What is the Law of Conservation of Energy? Question 10 options: Energy cannot be created, but can be destroyed as it transforms. Energy can be created and destroyed as it converts to other forms.