- Trong quá trình hình thành loài mới, các cơ chế cách ly có vai trò: Chọn một: OA. Tao ra kiếu gen thich nghi B. Sàng loc kiểu gen có kiểu hình thich nghi C. Làm phân hóa vốn gen của các quần thé D. 'Duytrisu toàn ven của loài
- Khi đặt cây ở cửa số, cây thường phát triển hướng ra phia ngoài cửa số. Hiện tượng này phản ánh dạng hướng động nào ở thực vật? Chon một: A. Hướng tiếp xúc B. Hướng nước D. Hướng sáng
- 4. Formation of ATP During the last four steps of glycolysis the __ groups of the molecules are transferred to __ __ creating __ . This is done via the process of This is done via the p
- 1. Fungi used to be thought as relatives of the plants. What features do they share with plants? Now, we know that fungi are actually more closely related to animals. Explain why.(3 points) 2. Explain, in your own words, the 4 possible steps of early cellular life on earth?(3 points) 3. "The evolution of plants has resulted in a trend of reduced size of the gametophyte generation." Explain this statement using moss ferns, and angiosperms as examples. Point out the structures involved. (3 points) 4. Why are animals like a centipede, a horseshoe crab and a barnacle which all look very different. considered to be in the same group? (3 points) 5. Which structure in the gymnosperm's is roughly equivalent to the anther in the angiosperms? Why?a Points) 6. When you worked on chapter 18 (Fig 18.4) you looked at nine different animal groups Explain why you would classify yourself as a chordate (we hope)and not another group (3 points) 7. "Annelids and arthropod:are the only groups of animals which are segmented." True or false"Why? (3 points) o
- 1. Which of the following statements about events during puberty is FALSE? The major physical changes of puberty generally occur in the same sequence for all individuals of the same assigned sex. The initial signal to begin puberty is given by the hypothalamus. On average, girls go through the events of puberty a year or two ahead of boys. The sequence of growth during puberty is similar to the sequence during prenatal development in infancy (proximo-distal) 2. Which of the following statements about events during puberty is FALSE? Full reproductive maturity is not achieved until several years after menarche and spermarche. Breast-development is considered one of the primary sexcharacteristics The pubertal changes in heart and lung function allow more strenuous sports activities. During puberty, the oil sweat, and odor glands become more active.
