What is the evolutionary advantage of an exoskeleton? It protects the body. It w

Question

What is the evolutionary advantage of an exoskeleton? It protects the body. It waterproofs the body. It provides for muscle attachment it allows an animal to molt A, B, and C only. The monotremes are classified as mammals because they Are endoderms Are carnivores Are omnivores Have mammary glands Give birth to live young rather than lay eggs. What is the primary role of mushroom's underground mycelium? protection. absorbing nutrients. sexual reproduction absexual reproduction anchoring. Why is the term cold-blooded not very appropriate for reptiles? the keratinized skin of the reptiles serves to insulate and conserve heat. the metabolism of the reptiles can generate internal heat by radiation to the environment. Reptiles regulate body temperature by using various mechanisms such as behavioral adaptations, The scales of reptiles serve to rid excess body heat by radiation to the environment. Reptiles swallow large prey whole to provide enough food to generate body heat. Chemicals for insect communication are called ecdysones pheromones deutrosones protosones None of the above Gas exchange in the human lungs occur through structures called spiracles gas pores arteries. surfactant alveoli The arthropods, especially insects affect human life by which of the following? pollination of crops and fruits. competition for food of every kind. crop damage before and after harvest. production and spreading of many plant and human diseases. all of the above.

Explanation / Answer

Answer :

Q79. The correct option is E ( A, B and C only).The option D is not because molting is stimulated by an hormone called ecdysone which are secreted by prothoraxic glands in the insects.

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