number of different pairs the teacher can choose= nCr (18+14, 2)=496
no. of opposite gender pairs possible= 14 (since there are only 14 boys)
probability = 14/496= 7/248
Answer:
A peace treaty is an agreement between two or more hostile parties, usually countries or governments, which formally ends a state of war between the parties
Spinal cord injuries occur when there's damage to the spinal cord. The result is loss of function, usually in mobility or feeling. Severe injuries that occur in the neck usually result in Quadriplegia, which is paralysis from about the shoulders down
Answer:
Photosynthesis begins in chlorophyll-containing photosystems.
Explanation:
Photosynthesis begins in chlorophyll-containing photosystems when the chlorophyll molecules absorb photons of light. This energy passes through other chlorophyll molecules, towards the reaction center of Photosystem II. The researcher should use plant with normal enzyme as a control with a plant having mutant enzyme. A plant that has multiple photosynthetic pigment has greater fitness as compared to plant that has only one type of photosynthetic pigment because multiple pigments absorb different wavelengths of light that allows the plant to capture the maximum amount of energy from the sun for photosynthesis.
