Poopyholes.
Yes. They have internal organs, sensory organs etc.
gills
Malpighian
Yes, insects have abdomens. The abdomen is the third and largest section of an insect's body, located behind the head and thorax. It contains vital organs such as the digestive system, reproductive organs, and parts of the respiratory system.
Insects and other arthropods have excretory organs called Malpighian tubules. These tubules are responsible for removing waste and regulating ions in the hemolymph (insect blood).
antenna
A main characteristic of all insects is a pair of antennae located on their heads. They are the sensing organs in arthropods.
In insects, frogs, and toads - hearing organs. In humans - eardrums
what organs of your urinary system called excretory organs
Yes, they reproduce sexually, the females laying eggs.
In plants, the reproductive organs are surrounded by specialized structures called flower buds. These buds eventually develop into flowers, which contain the male and female reproductive organs necessary for reproduction. The flowers are typically located above the leaves on the plant to facilitate pollination by insects or other agents.
A scientist who studies insects is called an "entomologist".