Frequently wiping cutting boards with paper towels would reduce the risk of cross contamination because the residue of raw meat would be wiped off
The answer would be “C,” a hypothesis. A conclusion occurs after the experiment—based on the hypothesis—while a constant is a scientific variable which remains unaffected throughout the duration of the experiment.
Answer;
5. the flipper of a dolphin and the arm of a koala
Explanation;
Homologous structures are body structures that share a common origin, the degree at which these structures resemble each other can be used to infer the closeness of evolutionary relatedness.
-A homologous structure is an example of an organ or bone that appears in different animals, underlining anatomical commonalities demonstrating descent from a common ancestor. It's when very different animals have bones that appear very similar in form or function and seem to be related. For example; the flipper of a dolphin and the arm of a koala.
All living organisms are made of only 20 different aminoacids- this is the correct answer! This means that the genetic code only codes for those 20 aminoacids (for example Glutamine and Lysine).
The 20 aminoacids that can form proteins are also called Proteinogenic amino acids.
Answer: Discriminative stimulus
Explanation:
A discriminative stimulus is associated with reinforcement or punishment, that exerts control over a particular form of behavior. The subject discriminates between closely related stimuli and elicits a specific behavior only in the presence of that stimulus. T<u>his stimulus increases the probability of a given response</u> because of their historical correlation with the availability of reinforcement for the response.
In this example, the hungry rat gets food if it presses a bar only when the light is on. The rat learns that is most likely to request this food in the future in the presence of this light, because historically, the request has been reinforced in the presence of this light. <u>The light in the example became a discriminative stimulus and it evokes the response.</u>