Life begun sortly after the earth formed 4.54 billion years ago but the conditions well they didn't call it the dark ages for no reason
Answer:
B: a population’s age-sex structure
Explanation:
A population pyramid is a way to visualize two variables: age and sex.
They are used by demographers, who study populations. A population pyramid is a graph that shows the distribution of ages across a population divided down the center between male and female members of the population. Expansive pyramids mean that the population does not increase much in total number and has many young people.
Hope this helps! Info from National Geographic, I would trust it if I were you!
Fleshy tissue organ is all that I can think of. Not sure if this helps, but good luck!
Answer:
Gives more detailed look at cell OR shows cell ultrastructure (can be phrased either way)
