Answer:
The protist that changes shape constantly and flows around its food to engulf it <u>Amoeba </u>
<u>amoeba</u><u> </u><u>is </u><u>the </u><u>answer </u>
<u>maybe </u><u>I </u><u>think</u><u> </u><u>this </u><u>might </u><u>be </u><u>the </u><u>correct</u><u> </u><u>answer</u>
After the 1st half-life 250 g of the radioactive material will be left.
<span>After the 2nd half-life 125 g of the radioactive material will be left. </span>
<span>After the 3rd half-life 62.5 g of the radioactive material will be left. </span>
<span>Therefore after 60 minutes, 3 half lives would have occurred. </span>
<span>Therefore the half-life = 60 / 3 = 20 minutes when 250 grams of the original material would have remained radioactive. </span>
<span>Therefore the answer is A) About 250 gram of the material decayed in 20 minutes.</span>
Potential difference = Current x Resistance.
Therefore if you transpose the formula, Resistance = Voltage divided by Current.
Which would be 2500 volts divided by 350 amps which gives you 7.1 ohms
The correct answer is C. Virus.
Virus falls on the gray area which is between nonliving and living things.
Virus is referred to as the small infectious agent which replicates only inside the living cells. Virus can infect life forms plants and animals and microorganisms, for example, archaea and bacteria.
They live in form of independent particles which are referred to as virions. Some viruses can evolve from plasmids.
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>