Lamarck's idea of the "inheritance of acquired traits" proposed that a. in animals, traits that are used often will grow and change shape. b. acquired traits are passed down from parent to offspring. c. in animals, traits that are not used often will shrink and change shape. d. acquired traits are not passed down from parent to offspring.

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Need with these questions . need the answers in a rush for these questions are the answers i put down are correct or not? ?

What is any method of measuring the age of an object or event in years, such as using atomic half-life?