What makes a fish a shark?

What makes a fish a shark?

Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays.

What are the features of the 5 vertebrate groups?

Characteristics of the Five Vertebrate Groups

• Fish. The body of the fish is covered in scales and has fins attached to help it move through the water.
• Amphibians. The skin of amphibians is very thin and must always be kept wet because amphibians breathe through their skin.
• Reptiles. The body of a reptile is covered in hard scales.
• Birds.
• Mammals.

What are 5 vertebrate classes?

The phylum chordata (animals with backbones) is divided into five common classes: fish, amphibians, reptiles, mammals and birds. Show examples of these groups and explain the characteristics that make one different from another.

Which type of animal has the most efficient respiratory system?

Birds

Do birds have big lungs?

The avian respiratory system is different from that of other vertebrates, with birds having relatively small lungs plus nine air sacs that play an important role in respiration (but are not directly involved in the exchange of gases). (A).

Which animal has the strongest lungs?

dolphins

Do Mosquitoes breathe oxygen?

They are not, because they do not breathe through noses or mouths. Instead, insects draw in oxygen through holes in their bodies known as spiracles and pump the oxygen through a system of increasingly tiny tubes (tracheae) that deliver oxygen directly to tissues and muscles.

Do insects fart?

Do Insects Fart? (They Sure Do!) Some insects do, anyway. In fact, some of them pass an enormous amount of gas. When people talk about farts, they are normally referring to flatus, which is defined as gas that is produced in the intestines and released from the anus.

Does killing mosquitoes attract more?

By exerting some effort to kill that “one mosquito” you probably exert just a little more energy, consume just a little more oxygen and therefore expel just a little more CO2 which makes you just a bit more of a target (all other things being equal) for any of her compadres buzzing around the area.

Do mosquitoes remember you?

The answer – according to one new study – is yes (sort of). Research out of Virginia Tech University has found that mosquitoes can learn and remember human smells, and this will cause them to develop a preference for certain hosts (humans), and certain individuals within the species (i.e. that one friend of yours).

What blood type do mosquitoes hate?

From the study, when looking at blood types A, B, AB and O, the mosquitoes were more attracted to persons with type O blood, with type A blood being the next preferred blood type. Dr. Baumann-Blackmore explains how it’s not just your blood type that lures mosquitoes your direction.

Is it cruel to kill mosquitoes?

People should not kill mosquitoes but allow them to take “blood donations”, a French animal-rights activist has said. Mr Caron, who counts himself as an “anti-specist”, said animal lovers should allow the insects to bite, except in Africa, where they would risk catching malaria.

Is it better to let a mosquito finish?

Both Aedes and Culex mosquitoes can become infected with B. However, if the mosquito already is engorged with blood, a victim might just as well let it finish eating. Saliva already has been pumped into the person’s body, Wesson explained. Flicking the insect away may do no good.

Is it OK to kill a fly?

Flies can be killed directly by insecticides or physical means such as traps, sticky tapes, fly swats and electrocuting grids. However, they should preferably be controlled by improving environmental sanitation and hygiene.

Do flies only live for 24 hours?

If you were to ask the average person how long they think a fly lives, more likely than not they will tell you they only live about 24 hours. House flies and other larger flies that usually infest a house can live for days, maybe even months. Mayflies, however, usually only have a 24 hour lifespan.

Do flies feel pain?

Over 15 years ago, researchers found that insects, and fruit flies in particular, feel something akin to acute pain called “nociception.” When they encounter extreme heat, cold or physically harmful stimuli, they react, much in the same way humans react to pain.

Do flies get mad?

Recently, biologist David Anderson set out to learn whether flies, like bees, can get angry–part of a broader effort to study how animal behavior relates to genetics. “Every time you swat a fly away from your hamburger, it seems to come back to the food more aggressively or persistently,” Anderson said.

Does a fly poop?

House flies defecate… a lot And they aren’t too worried about where they do it either! As you know, house flies like to live off a liquid diet. Because of this, their digestive system can move quite quickly, which means they defecate often.

What smell do flies hate?

Cinnamon – use cinnamon as an air freshner, as flies hate the smell! Lavender, eucalyptus, peppermint and lemongrass essential oils – Not only will spraying these oils around the house create a beautiful aroma, but they will also deter those pesky flies too.

Do flies feel love?

Most entomologists agree that insects do not feel emotion – at least, not in the same way that humans do. Their brains are too simple, missing the key parts associated with emotion in human brains.