Answer:
Disease can be density-dependent because organisms have to live close enough to one another for the disease to spread.
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.
Chloroplast, because they are the organelle in plant cells that captures light and goes through photosynthesis.
Answer:
c) A study of how disease rates vary among different population groups
Explanation:
Epidemiology is the systematic and scientific study of the distribution of the health-related issue in a specified population.
The Epidemiologists studies the disease and its cause in a population by the collection of the data which gives an insight in the distribution of the health issues in the population living from a small area like school to a country.
The epidemiological studies help the society by reducing the risk of the negative health outcomes, in spreading awareness about the health issues and in framing the health policies.
Thus, Option-C is the correct answer.
Photosynthesis still occurs but the amount of red pigment is greater than the amount of green pigment. The chlorophyll still absorbs light energy. The red leaves does not affect the process of photosynthesis.