In connective tissue, the role of elastic fibers is to .
A. retain fluid
B. provide flexibility
C. form delicate networks around blood vessels.
D. provide tensile strength

The correct answer is B. provide flexibility

Explanation:

Elastic fibers are made up of majorly of a protein called elastin. This protein provides the property to elastic fiber to stretch and contract and come to its original shape. Therefore elastic fiber plays an important role in providing flexibility in connective tissue.

Bigger arteries have a large amount of these elastic fibers because they continuously contract and relax during systole and diastole of the heart. Tendon and ligament have flexibility because it is made up of connective tissue which has elastic fibers. So the correct answer is B.

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.