Choose the word that best describes the type of fossil being made. Some words may be used more than once. 1. A triceratops uses its horns to gouge a chunk out of a log. The log gets fossilized, with the gouges intact.
2. A prehistoric beetle falls into a pool of mud. The mud hardens around the beetle's body, which decays away.
3. The space left behind by the beetle fills in with minerals, which harden over time into the beetle's shape.
4. A small mammal falls into a tar pit, where it is entirely preserved.

Mold Trace Body cast

Salmonella typhimurium is a food-borne bacterial pathogen that can cause severe gastrointestinal disease. salmonella is often phagocytosed by macrophages that normally destroy bacterial pathogens, but this bacterium is somehow able to prevent the complete maturation of phagolysosomes. salmonella is able to tolerate the low ph of phagolysosomes, and in fact responds to the drop in ph by secreting toxins that interfere with other cellular responses. which of the following differences would you expect to contribute to the survival of a bacterium within an salmonella-containing phagosome, compared to a healthy phagolysosome? decreased activity of acid hydrolases increased activity of acid hydrolases decreased import of h+ ions increased import of h+ ions my guess is decreased activity of acid hydrolases but i'm not sure.

Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into

Which of the following will a bacterium produce when a human gene is added to its genome? question 4 options: human carbohydrates a protein made up of both human and bacterial properties the human protein coded for by the human gene human plasmids that can be isolated from the bacterium