Tusks are essentially overgrown teeth. Yet they’re typically used for most task of daily living; digging for water or vital minerals in the ground, debating trees to secure fibrous food, and helping males compete for females
Explanation:
When yeasts eat sugar and turn it into energy, they also produce carbon dioxide.
Answer:
The animals could change it. For example, a bunny could dig a hole in the ground, making a home for other animals inside of it, too, changing the animals' living environment.
Or natural disasters could change their environment, too. For example, if a landslide occurred and covered a pond, frogs and snakes could lose their living areas and food, which would make them have to move to a different area, changing another ecosystem.
A ruler will not be needed due to having a graduated cylinder which can help measure the volume of liquids
It carries deoxygenated blood from the right ventricle to the lungs
