Review the chart, which shows the population sizes of three African animals in 1990 and in 2000.
1990 → 2000
Lions . 100,000 .→ 47,000
Cheetahs 50,000 → 7,500
Zebras 15,000 → 2,500

Which explanation is best supported by the numbers in the chart?
A)Lion and cheetah populations compete for the food source of zebras, and lions outcompete cheetahs.
B)The dwindling zebra population has led to the decline of the predator lion and cheetah populations.
C)Overhunting of lion and cheetah populations has led to a decline in the food source population.
D)Lion and cheetah populations compete for the food source of zebras, and cheetahs outcompete lions.

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.

The equation shows cellular respiration. during cellular respiration, glucose combines with oxygen to form carbon dioxide, water, and atp. what happens to the energy in the bonds in glucose? the energy is transferred to oxygen. the energy is transferred to carbon dioxide. the energy is transferred to water. the energy is transferred to atp.

Cpr, or cardiopulmonary resuscitation, is a first-aid technique to save lives. it involves compressions of the patient's chest cavity. which description is the best description of the functions of chest compressions in cpr? chest compressions are done to pump the heart. chest compressions are done to strengthen the rib bones. chest compressions increase carbon dioxide inhalation. chest compressions allow the patient's muscles to wake up.