To ensure its survival, any species must be able to

Adapt

Explanation:

According to Charles Darwin, there is a constant struggle for species survival, in which individuals best adapted to their environment (not necessarily the strongest) are able to survive and continue the species.

Example: In a snowy environment, white fur mammals are more difficult to find by their predators than black fur mammals.

Therefore, these will have a higher survival rate, and consequently a higher reproduction rate. Then, over time, the population of white fur mammals will outnumber the black fur population.

it would lead to upper respiratory infections and pneumonia.

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.