Scientists have found that the carbon-14 content of an unknown prehistoric sample was reduced to one-half. What best describes the identity of the sample?

What type of fertilization requires a great excess of egg and sperm gametes because most are wasted? a. external fertilization b. internal fertilization c. pollination

An object can be seen if the eye detects light that is ...

Which organism is an autotroph A) mushroom B) oak tree C) parrot fish D) E. coli bacterium

The most neurons of the brain are what?

Water is necessary for physical and chemical processes by ...? Question 2 options: a) plants and animals b) fungi and bacteria c) all living things

What are uses of nuclear power?

What is the ultimate energy source for the producers

Which process is a form of mechanical weathering? A. Hydration B. Carbonation C. Exfoliation D. Oxidation

The nurse obtains the patient's history to identify factors that may affect drug pharmacokinetics. which patients who are on highly protein-bound drugs are likely to experience drug toxicity?

The hellenistic philosophy advocating the avoidance of both joy and pain is called