Hi!! I have a few bio questions I would love some help with! (16 points) 4. Which age structure is most likely for a population that has not completed the demographic transition?
a. 50 percent of people below age 15
b. 15 percent of people below age 15
c. 5 percent of people aged 10–14
d. 10 percent of people aged 50–54

9. What is a mixture in which all the components are evenly spread out?
a. solution
b. solvent
c. solute
d. suspension

11. In science, data are
a. always expressed in numbers.
b. gathered from observations.
c. logical interpretations based on experience.
d. usually descriptive.

The diagram below represents a marine food web and a process that can harm the human population. each circle represents an organism and the smaller dots inside them represent a toxic substance. what is being represented and how does it harm the population? the diagram represents biological half-life, in which toxins build up in organisms higher up on the food chain, and this can negatively impact humans who consume the organisms and the toxic substance. the diagram represents biomagnification, in which toxins build up in organisms higher up on the food chain, and this can negatively impact humans who consume the organisms and the toxic substance. the diagram represents the process by which different organisms prey upon each other; this can impact the human population by reducing the number of organisms that do not contain the toxin. the diagram represents the way that toxins are metabolized by living organisms, with those at greater trophic levels able to metabolize more efficiently than those at lower levels. this means that those at higher tropic levels are safer for humans to consume compared to the organisms at lower trophic levels.

Place the steps tor the formation of the enzyme pepsinogen in correct order

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.