How many appendages does dragonfly have?
The abdomen is divided into ten segments, numbered from one at the base to ten at the tip. Males-Three terminal abdominal appendages and a bump (genitalia) under the second abdominal segment. Females-Only two terminal abdominal appendages and often flanges for egg splashing and/or ovipositor.
What are dragonflies legs used for?
Dragonflies use the knees of the front legs to clean their eyes, mouth parts, and antennae. The legs allow dragonflies to hold onto plants and move short distances.
What is a terminal appendage?
Terminal appendages can be used to identify gender. Male. Male dragonflies have three terminal appendages, collectively called “claspers,” that are used to grab and hold female dragonflies during mating: an upper pair of cerci (“superior appendages”); and a lower unpaired epiproct (“inferior appendage”).
What are examples of appendages?
An example of an appendage is an arm or leg. A part that is joined to something larger. An appendage is defined as an extra part that is attached to something. An example of an appendage is a leaf added to a dining table for extension.
What animals have 10 legs?
The Decapoda or decapods (literally “ten-footed”) are an order of crustaceans within the class Malacostraca, including many familiar groups, such as crayfish, crabs, lobsters, prawns, and shrimp.
What are the 4 legged animals?
Quadrupedalism (from Latin, meaning “four legs”) is a form of land animal locomotion using four legs. The majority of walking animals are quadrupeds, including mammals such as cattle and cats, and reptiles, like lizards. Birds, humans, insects, crustaceans and snakes are not quadrupeds.
What animal has the most hearts?
Animals With More Than One Heart
- Octopuses and squid have three hearts.
- Earthworms have five hearts.
- Scientists are studying cockroach and hagfish hearts to help design solutions for human heart disease.
Is human blood really blue?
Maybe you’ve heard that blood is blue in our veins because when headed back to the lungs, it lacks oxygen. But this is wrong; human blood is never blue. The bluish color of veins is only an optical illusion. Blue light does not penetrate as far into tissue as red light.
What color is hippo blood?
reddish
What is a black blood?
Black blood can appear at the beginning or end of a person’s period. The color is typically a sign of old blood or blood that has taken longer to leave the uterus and has had time to oxidize, first turning brown or dark red and then eventually becoming black.