The image is showing two possible ways non-homologous chromosomes may line up during metaphase 1 of meiosis 1. which of mendel's laws is this image depicting?
a) mendel's law of dominance
b) mendel's law of recessive
c) mendel's law of random assortment
d) mendel's law of independent assortment

D) Mendel's law of independent assortment

Explanation:

i just did it on USATESTPREP and got it right

relative dating involves things like higher layers are most recent than rocks lower in the sequence. this can be extended to the known sequence of fossils. rocks containing rabbit fossils are later than those containing dinosaur fossils.  

absolute dating methods mainly use radioactive elements that have known rates of decay and produce recognizable products. for example potassium 40 decays to produce argon. once a rock has solidified the argon is trapped. by measuring the argon and potassium0 you can get an accurate number for the age.  

some other methods are good for archaeological ages. dendrochronology involves recognizing the sequence of tree rings. the orientation of magnetized particles in baked clay can be used to date a fire.

hope this .. .

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.