What is the difference between b-cell lymphocytes and t-cell lymphocytes?
b cells regulate blood ph, and t cells regulate body temperature.
b cells are produced in the thymus, and t cells are produced in the bone marrow.
b cells engulf bacteria, and t cells carry bacteria to the lymph nodes.
b cells produce antibodies, and t cells destroy infected cells.

Ans.

B-cells or B-lymphocytes and T-cells or T-lymphocytes are components of adaptive immune system of body. Both these cells show specificity, diversity, memory, and ability to discriminate between self and non-self components.

The B-cells are antibodies-producing cells, against microbes or microbial components. These antibodies bind with the specific pathogens and neutralize them. The T-cells release various cytokines and immune molecules and destroy cells infected by pathogens or cancerous cells.

Thus, the correct answer is option). 'B cells produce antibodies, and T cells destroy infected cells.'

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.