The diagram below shows the different paths nitrogen can take in the nitrogen cycle. Below are some of the steps of the nitrogen cycle. Use three of the steps to show a possible way nitrogen can move through an ecosystem.

Here are the tiles (only 3 will be used)

Nitrates

Assimilation

Atmospheric

Ammonium

Ammonification

The negative impacts of nonnative species generally outweigh the positive impacts

Use this dichotomous key for insect identification to identify the insect shown. 1. a. insect has one pair of wings. order diptera b. insect has two pairs of wings. go to #2 2. a. front wings thicker in texture than hind wings go to #3. b. front and hind wings are same texture throughout. go to #4 3. a. front wings are short order dermaptera b. front wings cover entire abdomen order coleoptera 4. a. wings with scale on all parts of their area. order lepidoptera b. wings without scales go to #5. 5. a. hind wings smaller than front wings. order ephemeroptera b. front and hind wings nearly equal in size. order odonata the insect pictured is in the order diptera. ephemeroptera. coleoptera. odonata.

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?