Which of the following can be considered fossils?

a. a 1 billion year-old rock.

b. a 1 billion year-old piece of amber.

c. a 1 billion year-old piece of amber with a primitive insect inside.

d. all of the above

Based on binomial classification system, the mosquito, anopheles punctulatus, is most closely related in structure to A. Clux pipiens B. Anopheles quadrimaculatus C. Ades aeqypti D. Aedes sollicitans

What can be said about the structure of ice and water

Which of the following is an observation made by Darwin that supports his theory of natural selection? A. All organisms that are born survive. B. More organisms are born than can survive. C. Insects produce many offspring but produce few eggs. D.

Take the Global Trends Quiz. Click on "Answers" at the bottom of the quiz and check your work. What is expected to happen to the number of people sixty years and older in the developed world by the year 2050? To what can this be attributed? (Site 1)

Organs systems found in the thoracic cavity and abdominal cavity

If the flowers contain 30,000 kcal of energy, how much energy will the jackal obtain from eating the roadrunner

Mating is rarely random. Many organisms choose a mate for specific reasons - body size, coloration, antler size, feather length, etc.

According to tiffany fields research, what can increase weight gain, alertness, and activity in preterm infants

Proper handling of a compound light microscope includes all of these procedures with the exception ofa) turning the fine adjustment to raise the body tube. b. cleaning the objective lens and eye piece with lens paper. c.

This adult organism can be described as a Select all answers that apply. A. invertebrate. B. vertebrate. C. chordate. D. nematode.