There are not any insects that have two hearts. There may be other types of organs that do the same thing that a heart would though.
An insect is a type of animal. Any structure on an insect is, by definition, a structure on an animal.
It is correct to say an animal and an insect.
yes, a stick insect has a heart that is 15 for every insect in the world.
No, its an insect - it has 6 legs and lays eggs.
An insect's heart is a tube-like structure that runs along the insect's back and pulsates to pump hemolymph (insect blood) through its body. Contractions of muscles surrounding the heart cause it to beat and circulate nutrient-rich hemolymph to the insect's tissues.
Yes, an insect is considered an animal. Insects belong to the animal kingdom and are classified as invertebrates.
Depends on the insect.
On every third birthday, an animal is considered to be an insect.
The animal with the smallest heart is the fairyfly, a type of parasitic wasp. Their heart is so small that it can only be seen under a microscope. Despite its small size, the fairyfly's heart is still able to pump hemolymph (insect blood) throughout its tiny body.
Any adult insect that has 9 abdominal segments will have a 12 chambered heart. The insect heart is a tube with one swelling (chamber) per body segment. So, there will be 3 thoracic chambers in most insects. An additional 9 abdominal segments would give 12 total chambers to the long heart tube.
An animal (insect) with an exoskeleton still grows under its exoskeleton like any other animal (insect). The exoskeleton is like a suit of armor, when the animal (insect) grows to big to fit inside its exoskeleton it sheds it, and a newer exoskeleton will grow to fit the animal (insect).
This question is far too general. Insect bites and animal bites are different.