An echo is a sound wave that is absorbed by a soft material.

True

False

The breakdown of large molecules by the enzymatic addition of water is an example of what kind of reaction?

Which animal group do spiders belong to?

Where does the Calvin cycle take place? a. thylakoid membrane b. stroma of the chloroplast c. outer membrane of the chloroplast d. cytoplasm surrounding the chloroplast e. chlorophyll molecule

With respect to normal base pairing when a molecule of dna replicates thymine will most likey pair with?

What do sea turtle hatchlings rely on to make it safely to the sea after they hatch? A. subtle, nighttime lighting cues B. the loud roar of ocean waves C. the scent of seaside air D. the direction of the sun

Carbohydrates are composed of which three elements

4. What is a physical or mental representation of an object or an arent? a theor a hypothesis a model a scientific lair

The Hematodinium parasite becomes less of a problem for the blue crab when A-the crab is very young B-fishing is thriving in the region. C-the crab moves to less salty water. D-a significant percentage of the population is impacted.

Homeostasis is classified under which of the following A. Cell respiration B. Transcription C. Cell regulation D. Photosynthesis

A ball, with a mass of 10 kg, is dropped from the top of a building, from a height of 20 meters. Explain what will happen to the potential energy if the 10 kg mass is replaced with a mass of 40 kg and the height of the drop remains constant.