The spiny hedgehog is a small, insect-eating animal whose body is covered by spines.
When threatened, the hedgehog rolls itself
into a ball, with all its spines facing outward.
Which of these protective strategies does the
spiny hedgehog exhibit when threatened?
A camouflage
B chemical defense
C mimicry
D physical defense

One statements is an example of a scientific observation. another statement is an example of a scientific explanation. identify the correct statement for each category to illustrate how scientific explanations are inferred from scientific observations.

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these

Producing disposable grocery bags consumes resources. recycling disposable bags is a solution that can recover some of the resources used to make new bags. which of the following behaviors could further refine the solution? a. disposing of bags by burning them b. reusing bags whenever possible c. using bags at once so that they do not break d. using only nonrenewable materials to make new bags subject is environmental science for apex users