In which step(s) did a chemical change most likely occur?
Investigations were carried out in a science lab to
explore the topic of chemical and physical changes.
Investigation A
Step 1. Add 5 tsp. salt to 100 ml warm water and stir until
most or all of the salt is no longer visible.
Step 2. Heat the salt solution on a burner until only a
white solid remains.
O Investigation A, Step 1 and Investigation B, Step 1
O Investigation A, Step 2 and Investigation B, Step 2
O Investigation A, Step 2 only
O Investigation B, Step 2 only
Investigation B
Step 1. Mix 10 tsp. white sugar into 100 ml water and stir
until most or all of the sugar is no longer visible.
Step 2. Heat the sugar solution on a burner until the
solution thickens and turns brown.
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You decide that the introduction should also discuss the extremophiles that are referred to as the archaea. these single-cell organisms are considered "extremophiles" due to their ability to survive and reproduce in environmental conditions that would be hostile for most living organisms. archaea species have been isolated from highly acidic sulfur springs, ocean floor thermal vents with temperatures that exceed boiling, and subarctic ice well below freezing. while still considered to be prokaryotic, the archaea have numerous differences that place them apart from the bacteria. choose the characteristics that separate the archaea from other prokaryotic cells. select all that apply. view available hint(s) select all that apply. archaea lack true peptidoglycan in their cell walls. the morphology of the cell is rigid and is geometric in shape, similar to a sphere or cylinder. the cytoplasmic membrane lipids of archaea have branched or ringform hydrocarbon chains. all currently identified and characterized archaea have been linked as the causative agent to an animal or human disease.

Donde se encuentra el adn nuclear en un organismo eucariota?

The fascicles of the deltoid are ; the fascicles of the pectoralis parallel; bipennate fusiform; unipennate multipennate; triangular bipennate; fusiform