Select each correct answer. More than one answer may be correct. Which of the following affects the force of gravity between two objects?

the objects' volumes
the distance between the objects
the objects' densities
the objects' masses

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.

Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance

Add solid urea to a beaker of water. the beaker gets very cold. is δh favorable or