Birds lay eggs that have much harder shells than reptile What is most likely the main function of the hard shell?

A to feed the bird as it develops

B to provide camouflage from predators

C to keep the embryo warm until the bird hatches

D to protect and prevent the egg from drying out

D

Explanation:

bird eggs don't need additional moisture that some reptiles absorb with their eggshells

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.