Answer:
opponent- process
Explanation:
Here is the complete question:.
Bradley is watching his twin daughters play on a playground seesaw, and is fascinated by the way only one side can be up or down at a time. He thinks about color vision, and recognizes that this is similar to how the __________ theory describes his ability to see just one color of a color-pair at a time.
a. signal detection
b. opponent-process
c. sensory adaptation
d. trichromatic
And the answer is
B. opponent- process
-In Africa savanna more wildebeest are born than the environment can support. As a result over a period of years individuals that are well suited to the environment reproduce, and those that have lesser adaptations die before they reproduce. This is referred to as natural selection.
Answer:
Water has a pH value of 7. It is colorless and has a fixed boiling point at 100 Degree Celsius.
Explanation:
Herbivores are organisms that feed on plants. Plants have different mechanisms of defending against herbivores, mostly by synthesizing compounds that give the plants a bitter or unpleasant taste. The synthesis of these molecules is intensified when the plant and its cells suffer physical damage, so, in the case of peeled potatoes, there should be an increase in activity of this protective enzyme.
The villi of the small intestine use active transport to take up nutrients after concentration has reached equilibrium.
<h3>What is Active transport?</h3>
Active transport may be defined as the process that occurs against the concentration gradient and is mediated by carrier proteins. Metabolic energy is used to move ions or molecules against a concentration gradient.
During the process of digestion, the villi in the small intestine enthrall the soluble nutrients gradually. Over time, the concentration of nutrients in the villi acquires an equilibrium with the concentration in the gut. Until here, the nutrient uptake is carried by the process of passive diffusion.
But after attaining the equilibrium, the nutrient uptake is carried by the process of active transport.
The complete question is as follows:
What part of the body uses active transport to take up nutrients after concentration has reached equilibrium?
- Lungs
- Stomach
- Small intestine
- Liver
Therefore, the correct option for this question is C, i.e. small intestine.
To learn more about Active transport, refer to the link:
brainly.com/question/18434867
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