Una navalla amb fulla d’acer té un valor de duresa estimat en 6,5. Tenint això en compte, quins minerals ratllaria? Es podria ratllar amb un cristall de quars? Raona la resposta.

2points what is the term for a female reproductive cell? a. egg b. chromatid c. allele d. fertilization

2. how does the miller-urey experiment fall short of demonstrating that life can arise from inorganic molecules? explain. a. it doesn't show a leap between a collection of amino acids and a single-celled organism. b. it recreates the conditions that existed at the earth's beginning, but no molecules form as a result. c. it doesn't provide evidence of the formation of amino acids. d. it doesn't show how multicellular organisms developed from unicellular organisms

Indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. chinchilla x albino a) all chinchilla b) 1/2 chinchilla, 1/2 albino c) 3/4 chinchilla, 1/4 albino