The disaster called the Cambrian explosion resulted in a tremendous mass extinction.

True

False

What are the structural parts of a moss sporophyte?

The parents-to-be were shocked when an ultrasound scan done in the second trimester of the pregnancy showed a fetus with obviously broken leg bones and ribs. the doctor diagnosed osteogenesis imperfecta.

Classify these animals as vertebrates or invertebrates. starfish: amphibian: bird: octopus: coral: fish: clam: reptile:

A patient at risk for stroke tells the nurse that the doctor "told me to take aspirin every day." The patient states that he is on nabumetone (Relafen) daily, so he does not need to take the aspirin also.

Which monosaccharides is a building block of a plant cell wall

A confounding variable is another variable, other than the independent variable, that may have an effect upon your experiment's results.

Which of the following codes for a specific protein? Question 1 options: DNA gene enzyme chromosome

Any problem of inquiry can be proved or disproved using the scientific method. True False

What was the first living cells to evolve on earth?

Natural lakes are formed by erosion. ALL BUT one of these is a type of erosion that forms lakes. A) glaciers. B) gravity. C) rivers. D) wind.