Answer:
The forces of thrust, lift, drag, and gravity all work together to send your homemade aircraft flying. To understand how these forces work to create flight, think about movement: something has to push that plane forward.
The use of stem cells is without any objections since it can be used in therapies to help humans.
The animal will become extinct due to poaching.
Answer:
The correct answer is statement B.
Explanation:
The prime oxygen carrier protein found in the human fetus is fetal hemoglobin or hemoglobin F. This form of hemoglobin is present in the RBCs of the fetus and plays an essential role in mediating oxygen to different parts of the body. The hemoglobin F exhibit a distinct structure in comparison to the hemoglobin found in adults, this difference permits the hemoglobin in the fetus to combine with more affinity or strongly with the molecules of oxygen.
The presence of gamma subunits in place of beta subunits in hemoglobin F makes it combine more robustly with oxygen. The presence of beta subunits in the hemoglobin found in adults makes it associate with 2,3-bisphosphoglycerate, this interaction makes the hemoglobin to discharge oxygen.
The gamma subunits present in hemoglobin F possess less positive charge in comparison to beta subunits present in adult hemoglobin. The 2,3-bisphosphoglycerate exhibits negative charge, which makes it fascinating more towards hemoglobin found in adults in comparison to hemoglobin found in the fetus. This preference of 2,3-bisphosphoglycerate towards hemoglobin in adults makes hemoglobin F to combine more strongly with oxygen.
Reduction in the rate of transpiration enables a plant to conserve more water.
Transpiration refers to the loss of water from the leaves of a plant. A plant that is found in desert areas (xerophytes) does not need to loos a lot of water hence it must develop adaptations to minimize the rate of transpiration.
Adaptations to reduce transpiration rate are;
- Reduction of leaves to spines
- Possession of waxy cuticle
- reduction in the size of the stomata
Hence, reduction in the rate of transpiration enables a plant to conserve more water.
Learn more about transpiration: brainly.com/question/13891305