Ở một loài thực vật, xét 2 cặp gen phân li độc lập A, a và B, b, mỗi gen quy định 1 tính trạng, alen trội là trội hoàn toàn. Tiến hành mmotj phép lai giữa hai cây, thu được F1. Thep lý thuyết, kiểu hình mang hai tính trạng trội ở F1 không thể chiếm tỷ lệ: A: 12,5% B: 37,5%

Approximately percent of the energy created by cell metabolism is used by the body to carry on its normal functions, such as respiration, digestion, reproduction, muscular movement, circulation, and cellular regrowth.

2. cheryl hears a new song on the radio every day during the week on her commute to work. surprisingly, when the song comes on at a party on saturday night, she knows most of the words without trying. describe the three ways that we use cognition to learn without reinforcement. which type of cognitive learning without reinforcement best explains how cheryl knew the song lyrics? explain your answer.

Animals have a variety of adaptations,including trachea and gills, which allow this key process to occur. which provides the molecules necessary for cellular respiration and efficient atp synthesis?