Is it true or false that Science and theories had to be changed many times in light of new observations and findings?

What best describes a role of animals in the water cycle

Scientists publish the details of important experiments so that

At the beginning of an experiment, a scientist proposes an educated guess about what will happen. What is this guess called? A. A hypothesis B. A peer review C. A conclusion D. An analysis

Explain why the urine of a diabetic patient gives an intense brick red precipitation with Benedict's reagent whiles the urine of a normal person hardly from a precipitate

Why is a primary far less common and takes much longer to complete than secondary succession?

The reticular activating system (ras) is the part of the brain where the world outside, and thoughts and feelings inside, meet.

Which statement about nucleic acids is true? Check all that apply. Nucleic acids store and transmit genetic information. The nucleic acid DNA is the blueprint for life. DNA holds the instructions for all structures and functions of an organism.

What would be the appropriate range for resistance and repetitions when one is designing a resistance training program targeted to develop strength? Muscular endurance? Muscular power? Hypertrophy?

In a particular species brown fur is dominant over white fur. So how could an individual in the species have tan fur? A. the trait is following the heredity pattern of multiple alleles. B. the trait is following the heredity pattern of codominance.

Bones were found in the nest of an eagle, a major predator of tree-dwelling primates. Analysis of these bones reveals they are from a primate species known to live a mainly solitary existence. From this analysis, what can you hypothesize?