Which type of organism can be found in all levels of the energy pyramid except the first (bottom) level

a.
herbivores
b.
carnivores
c.
producers
d.
consumers

Here's one way to follow the scientific method. place the missing steps in the correct position in the process.

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food

Which is an example of a vestigial structure? a. tail of a monkey b. fin of a fish c. flower of a plant d. tailbone of a human