A salamander is a vertebrate that spends part of its life cycle in water (juvenile stage) and part on land (adult stage). In both life stages, the salamander's body temperature depends on its surrounding environment, so the salamander demonstrates behavior.

Ectothermic

Explanation:

Ectothermic behavior is a type of behavioral mechanisms adopted by animals to regulate their body temperature by depending on the temperature of their environment or external source. These behavior is exhibited by animals that do not produce heat internally to regulate their body temperature, but rely on the external heat sources to maintain their body temperature, which is vital for the normal functioning of their body.

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meiosis is the first to occur after the nuclei of opposite of opposite mating types fuse