Which term describes clusters of light-absorbing pigments?
a)photosystems b)grana c)thylakoids d)chlorophylls

The correct answer would be D) chlorophylls.

Chlorophyll refers to the green pigment present in cyanobacteria and chloroplasts of plants and algae.  

It is the pigment which is able to absorb light which makes it an essential element for photosynthesis.

Several chlorophyll pigments are present in and around the photosystems present in the thylakoid membrane.  

Different types of chlorophyll are present in nature such as chlorophyll a, chlorophyll b, chlorophyll c1, chlorophyll c2 et cetera.  

Chlorophyll a is the most abundant chlorophyll in nature.

Chlorophylls is correct! D

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.  

well the answer is 2!