Species that have many offspring at one time are usually:
r-selected
k-selected
both r- and k-selected
not selected

r-selected

Explanation:

R-selected species are organisms The carrying capacity is not a limiting factor. The life span of these individuals is short and in general there is no care with the offspring. They aim to exploit empty niches and produce a large number of offspring each cycle, even though few of them survive to adulthood. Informally it can be said that this is a strategy based on quantity rather than quality. Examples of r-selected species: insects and most fish.

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.