If the half-life of a radioactive isotope is 5,000 years, how many grams of the radioactive isotope in a specimen will be left after 10,000 years if you start off with 100 grams of the radioactive isotope?

What would happen if Bicoid proteins were injected at the anterior end of a fruit fly embryo? a. The embryo would have no dorsal-ventral axis. b. Anterior structures would form at both ends. c. Bicoid mRNA wouldn't be translated into protein. d.

In addition to resemble one another, what other criteria are required for organisms to be group in the same species? A. They migrate only wiht one another. B. They fight only with one another. C. They share food only with one another. D.

Both cellular respiration and the burning of fossils fuels release energy. This can be attributed to A) the breaking of bonds during oxidation. B) the reduction of carbon to carbon dioxide. C) the formation of bonds in new organic compounds.

Why would it be expected that a swordfish would exhibit higher methyl mercury levels than a tilapia? (site 2)

Many beverage companies are required to recycle bottles and cans because this activity directly reduces (1) air pollution and destruction of the ozone shield (2) overpopulation and soil erosion (3) solid waste and depletion of resources (4) thermal

Which organisms are most closely related?

Which of these genes are located on the q arm of chromosome 17?

What do autotrophs do durring photosynthesis?

What is a reproductive strategy? O A. The way that a species hides from prey O B. The way a species produces offspring O C. The adaptations that an offspring passes on O D. The DNA that is passed onto an offspring

What are the three things needed for photosynthesis