population biology

The story of the rise of a Yellowstone wolf, and what her life and death and death tell us about the struggle for the American West--Provided by publisher.

"When some scientist friends ask Molly to help track baby cranes, she can't wait to lend a hand!"--Back of cover.

"In 2019 there were about 7.7 billion humans on Earth, more than double the number of people alive in 1969. During that fifty-year period the impact of humanity on the natural environment has increased proportionately. human activity is causing a loss of biodiversity-the diversity of plant, animal, algae, fungi, and microbe species. But the survival of humanity-and all life on earth-is directly related to biodiversity"-- Provided by publisher.

Bill Nye the Science Guy answers questions about populations and conducts an activity designed to help viewers understand how weeds proliferate.

An interactive game where Bill Nye the Science Guy asks multiple choice questions on population and ecosystem. For two players or two teams, with plays up to 30 minutes, the game contains over 150 questions that are completely randomized, so students can play multiple times without seeing the same questions.

Briefly examines the nutrient and energy cycle on Earth, beginning with how energy from the sun gets turned into energy for plants, and how that energy is transferred to animals and humans.

Showing readers how to put math to work in their day-to-day activities, this book describes how graphs can be used to track data on endangered animals.