In this tree, lizards are the sister taxon of the lineage that includes humans and chimps. The taxon that shares the most recent common ancestor with frogs is fishes. Frogs and humans are more distantly related than are lizards and humans. Fishes and chimps have no common ancestors:

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water

Pls me i need this ! each cell has genes activated depending on it's job and what kind of cell it is. it is the presence of that causes the repressor protein to fall off and unblock the gene on the lac operon. if a gene is turned on then it is being an additional circular chromosome found in some bacteria that is used in genetic engineering.