A scientist wanted to find out if runners finished a race faster if they ate
beforehand. The scientist had four runners eat a meal and then complete a
race. A few days later, the scientist had the runners complete the same race
without eating. What is the best way for the scientist to analyze the data he
collected?

For a to be healthy, it has to have lots of different kinds of plants and animals. all of the different types of plants and animals in an ecosystem. name four types of ecosystems from those listed in the video. b) c) d) most living things live here. all living things depend on how an ecosystem like a game of sticks? why should we build new buildings on existing land? name four extinct species from those listed in the video. b) c) d) the best way to wipe out a species is to the largest ecosystem in the world is this percent of the world is covered by water. how many of all species in the world live in the ocean? list five things you can do to increase biodiversity. b) c) d) e) how many species are we losing per hour?

The mixture of sperm and fluids from the seminal vesicles, prostate gland, and cowper's glands is called

How do the sperm cells get from the stigma to the ovules?