B) is the correct answer. The flu virus does not have the same genetic makeup each year as with each individual it infects its rapidly mutating.
D. Lymph nodes are the filtering points throughout the body... found in the lymphatic system
Answer:
Bacterial genes are organized into clusters of coregulated genes, that are regulated such that they are all turned on or off together.
(hope this helps)
Answer:
- Random dispersion occurs with dandelion and other plants that have wind-dispersed seeds that germinate wherever they happen to fall in a favorable environment.
- Clumped dispersion is seen in plants that drop their seeds straight to the ground, such as oak trees, or animals that live in groups, such as schools of fish or herds of elephants.
- Clumped dispersions may also result from habitat heterogeneity. If favorable conditions are localized, organisms will tend to clump around those, such as lions around a watering hole.
hope this helped you (ㆁωㆁ)
