Your first choice is right
the obligate parasite requires strigolactones for seed germination and not karrikins. The plant secrete strigolactone from its root into the soil as mentioned. In the soil, strigolactone promotes the seed germination of the parasitic weed.
The strigolactones can be beneficial for the germination and growth of the weed plant.
Answer:
The James-Lang theory states that our experiences of emotion is our awareness of our physiological responses to emotion-arousing stimuli, meaning that your body does certain thing which is then followed by an emotion. For example, your heart racing, and body shaking would be followed by a sudden rush of fear.
The Cannon-Bard theory states that an emotion arousing stimulus simultaneously triggers a physiological response and the subjective experience of an emotion. Disagreeing with the James-Lang theory, the Cannon-Bard suggests that the feeling of fear does not cause your heart rate to increase but your heart rate increasing, does not evoke a feeling of fear, rather, these are both separate occurrences that happen simultaneously.
The two-factor theory states that to experience emotion, you must be physically aroused and cognitively label the arousal. This means that in order to feel an emotion you have to be consciously aware of the stimuli provoking and causing the emotion.
The Zajonc, LeDoux, and Lazarus theory states that some emotions can occur instantly with out conscious appraisal.
Explanation:
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The opportunity cost of a computer in China is 2 cars.
If the two countries specialize and trade, the country that will import is the United States because it has a higher opportunity cost in the production of computers.
The terms of trade would be beneficial to both China and the United States.
If productivity in China doubles, the country that has a comparative advantage in the production of cars is the United States.
<h3>What is comparative advantage?</h3>
Comparative advantage is when a country produces a good at a lower opportunity cost when compared to other countries.
A country should specialise in producing a good for which it has comparative advantage and import goods for which it does not have comparative advantage.
For China:
Opportunity cost in producing computers = 1200 / 200 = 6 cars
Opportunity cost in producing cars = 200 / 1200 = 1/6 computers
For United States:
Opportunity cost in producing computers = 400 / 200 = 2 cars
Opportunity cost in producing cars = 200 / 400 = 1/2 computers
To learn more about comparative advantage, please check: brainly.com/question/25812820
it is a force that attract any two object with mass
