How often must the average person engage in activity/exercise to see improvements in cardiorespiratory endurance?

if a dolphin is producing a vocalization with a frequency of 35Hz traveling at 1,470 m/s what is the wavelenghth of the sound

Put these organisms in geological time scale oder Coyote Trilobite Armor fish Catfish Sauropod

Why does the electrical impulse that simulates heart contraction first travel down to the bottom of the heart, and then stimulates contraction from the bottom of the ventricles upwards?

Seed plants do not have swimming sperm instead they have this

What causes a branch in cladogram

You are given a clear solution of KNO3. Using 3 - 4 sentences (in your own words) explain how you would determine if the solution is unsaturated, saturated or supersaturated.

Which environmental lesson can you derive from the ecocide hypothesis for what happened to easter island? a. the introduction of nonnative species has environmental consequences. b.

How does the amount of uranium in zircon tell us how old the crystal is?

Which organism's are omnivores? A) The snake, the bear, and the fish B) The fish and the eagle C) The bear and the fish D) The snake and the mouse If an omnivore is an animal that eats both plants and animals, I'd choose D because all the other

How are all humans similar?