Answer: D
Explanation: All of the Above
Experiments are often replicated or repeated even when no obvious mistake was visible. This is to establish how variable results are. Statistically, multiple runs are used to determine the variance or standard deviation around the average value. The best answer for this is choice C, to double check results.
Answer:
Responding to climate change involves two possible approaches: reducing and stabilizing the levels of heat-trapping greenhouse gases in the atmosphere (“mitigation”) and/or adapting to the climate change already in the pipeline (“adaptation”).
Explanation:
Considering the attached figure which is a table; and studying the table in the figure; Giving the mother anti-rh antibodies before delivering her baby would be wise precaution in
Case 1 only. Most Rh disease can be prevented by treating the mother during pregnancy or promptly after childbirth. The mother has an intramuscular injection of anti-Rh antibodies. This is done so that the feal rhesus D positive erythrocytes are destroyed before the immune system of the child can develop.
Answer: Seedless vascular plants can grow taller because they have tissues that support the plant and carry water and nutrients.
Explanation:
Seedless plants are those which lack seed production they have vascular system comprising of xylem and phloem tissues. These tissues help in conduction of water and nutrients from the soil this helps in growth of plants to larger sizes are compared to nonvascular plants that obtain water and minerals via diffusion with the moist soil so their growth is restricted as they do not have well developed vascular system. The example of seedless vascular plants are the ferns. The example of nonvascular plants are mosses.
