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Which are characteristics of arthropods? Check all that apply.

a) Nervous system
b) Segmented body
c) Asexual reproduction
d) Open circulatory system

User Nacho Coll
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1 Answer

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Final answer:

Arthropods are characterized by a nervous system, a segmented body, and an open circulatory system. They also have a hard exoskeleton made of chitin and different respiratory systems like gills or tracheae, depending on their habitat.

Step-by-step explanation:

The characteristics of arthropods that apply from the given options are a nervous system, a segmented body, and an open circulatory system. Arthropods indeed have a complex nervous system that includes a brain and a ventral nerve cord, and their body plan is segmented, typically into a head, thorax, and abdomen. Also, they possess an open circulatory system with hemolymph, which unlike closed circulatory systems, does not confine the blood-like fluid within vessels but instead allows it to bathe the internal organs directly.

Asexual reproduction is not a characteristic commonly associated with arthropods, as most undergo sexual reproduction. Key examples and features to understand include:

  • Arthropods have appendages on at least one segment used for various functions.
  • They have a hard exoskeleton made of chitin, which they must shed to grow, a process known as molting.
  • Their respiratory systems vary, with aquatic arthropods using gills, and terrestrial ones, like insects, using tracheae.

User Andrey Adamovich
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