In larger terrestrial animals, the testes are in the scrotum rather than in the abdomen There is lack of room in the abdomen A. This provides for a shorter sperm path B. This provides a more direct blood supply C. It provides greater protection to the testes D. It keeps the temperature lower for sperm development

D. It keeps the temperature lower for sperm development

Explanation:

Semineferous epithelium ,of the seminiferous tubules, of the testis  is the site of  sperm production (Spermatogenesis) , and highly sensitive to elevated and fluctuating body temperature of  man. Elevated temperature affect the survival of spermatids , the spermatozaon,  and therefore affects spermatogenesis.

To avoid this the testis is located outside the body  in the scrotal sack.This positioning aids  shielding away  of the elevated body temperature; thereby survival of spermatozoan.

The attachment in the scrotal sack is done by the cremasteric muscles of  the scrotum. This muscle positions the testis in the best angle  to reduce temperature conduct from the body.

It also help by contracting and relaxing,  to adjusts the temperature of the testis depending on the environmental temperature.During cold showers,it constricts pulling it close to the abdomen, and after, relaxes returning it to normal position.

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correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.