Aclass activity to study human cheek cells, a student takes a cotton swab and gently scrapes the inside of her mouth. in order to view the cheek cells using a compound microscope, what tool will the student need ? a. glass slide b. petri dish c. pipette d. scalpel

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.

Acommon kind of mechanical weathering is called

(99 points) be serious! how do farts work? how do you fart without it stinking? serious answers only