Why do scientists that that photosynthetic prokaryotes were probably not the first life forms on earth

What causes a cell to grow in size?

Which of the following is true aboutimprinting? It may betriggered by visual or chemical stimuli. It happens tomany adult animals, but not to their young. It is a type oflearning that does not involve innate behavior.

The process by which mrna is constructed is called transcription

Susanne is a 27 year old who has had headaches, muscle aches, and fatigue for the last 2 months. you have completed a thorough history, examination, and laboratory workup but have not found a cause. what would your next action be?

When classifying organisms, plants and animals share some similarities and differences. Which characteristic listed below is unique to animals? A. Animals are heterotrophs B. Animals produce their own food through photosynthesis C.

Which class of biologically important molecules are steroids related to? nucleic acids proteins lipids Carbohydrates

The golgi apparatus (dictyosome) plays a major role in what cellular pathway?

What is the flotation method used to determine? Mass Density Volume Color

Fossil records suggest major changes in early vascular plants that favored the evolution of land plants. Which was one of these major changes? Select one of the options below as your answer: A. Development of fruit B. Development of seed C.

Many people in the developing world who depend on rice in their diet suffer from diseases related to deficiencies of