Which of the following items would have the lowest density?
a. a 6 cm3 block of ice with a mass of 4 grams
b. a 12 cm3 block of wood with a mass of 3 grams
c. a 2 cm3 block of lead with a mass of 11 grams
d. a 12 cm3 block of aluminum with a mass of 2 grams

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm

Each nephron is made up of capillaries that form the __ sweat glands bladder glomerulus ureter