Monday 20 January 2014

Finding Nemo

I have seen finding nemo many times before as a kid. Watching it when I was bored and thinking about how funny it was. I didn't realize anything that actually had to do with nature besides the general stuff. When I watched it this time I was trying my hardest to try and find new things that I had not discovered before. The first thing I had realized was the clown fishes habitat. I thought about how they survived in that habitat and the requirements they needed in order to survive. After thinking about that I realized the flat worm which I had never even realized in the film before and didn't remember. Another part I saw differently was the part of how the deep sea was separated from where the small fish lived and how they were scared to go there. I now realize that they cannot go into the deep sea because they wouldn't be able to survive in a new habitat. I wonder about many things in this movie. Like do fish know who humans are? are they scared of us? can they even communicate with each other and if so then how?

Second Final Question

Celebrity Organisms- http://kelvanmangat.blogspot.ca/2013/11/celebrity-organisms-adolf-hitler.html
This blog was naming an organism that was named after a celebrity. Mine was Anophthalmus Hitleri which was named after Adolf Hitler.

Amazing Organisms- http://kelvanmangat.blogspot.ca/2013/10/blood-shooting-lizard.html
http://www.youtube.com/watch?v=gEl6TXrkZnk
This was my amazing organism and it was amazing because it was a lizard that shoots blood out of its eye to protect itself. This lizard is called a horned lizard.

Amazing/Interesting Plants- http://kelvanmangat.blogspot.ca/2013/11/extreme-plant.html
The leaf of Darlingtonia is unique: it is tubular, and contains a fluid that digests trapped insects.

Interesting Cnidarians- http://kelvanmangat.blogspot.ca/2013/12/sponge.html
Sponges are animals of the  Porifera

Interesting Arthropods- http://kelvanmangat.blogspot.ca/2014/01/hercules-beetle.html
The Hercules beetle is a species of rhinoceros beetle that lives in South America. This beetle is the STRONGEST ANIMAL

I believe my best blog post out of these was the horned lizard. This was the lizard that shoots blood out of its eye. I chose this blog post because I believe it is the most interesting and unique one and I had a lot of fun learning about it and presenting it to the class. I learned that the horned lizard does not only shoot the blood out of its eye but it travels a length up to three feet (one meter). It also contains a chemical that is noxious to dogs, wolves, and coyotes. The thing that stands out about this post is how to the blood is poisonous and scares away and even kills predators. I chose 2. Requirements & Characteristics of Living Things. This lizard requires the blood to survive in its natural habitat and to get food for itself in able to have a healthy life. Nature has evolved and helped this animal defend itself in this way.
 

First final question

Within the animal kingdom we have dissected a roundworm (phylum nematoda), an earthworm (phylum annelida), a grasshopper (phylum arthropoda), a starfish (phylum echinodermata) and a grass frog (phylum vertebrata, class amphibia).
I will be discussing each of these dissections.

Roundworm:




Feeding and Digestion
  • Roundworms have 2 openings(mouth and anus)
  • Mouth contains 3-6 rows of teeth
  • The food enters through the mouth, then into the pharynx, and then, the very long intestine. This extends all the way to the anus, where the food is eliminated.
Reproduction
  • These are the intestines from the roundworm
  • Male roundworms produce sperm in a long thin tube called the testes
  • Fertilization is internal
  • The female roundworm produces egg cells within the very thin, coiled ovary
  • Fertilization takes place inside of the female
Respiration, circulation, nervous system
  • Don't have a proper circulatory or respiratory system
  • Diffusion takes place in body walls
  • The 2 nerve cords in the roundworm are dorsal nerve cord and ventral nerve cord. They transmit impulses to various cells and tissues of their bodies
Earthworm:
 
 
Feeding/Digestion
  • 2 openings, mouth and anus
  • They use the pharynx to bring in the food, then the food passes the esophagus and goes into the crop, the gizzard grinds it up and moves the food into the large intestine.
Reproduction
  • Hermaphrodites(contain male and female parts)
  • Internal reproduction
  • clitellum is used in its reproduction
Respiration, circulation, nervous system
  • diffusion takes place in body wall.
  • contain spiracles instead of lungs
  • closed circulatory system
  • have series of muscular vessels called hearts
  • aortic arches pumps blood into other 2 vessels
  • dorsal blood vessels carry blood to front of the body
  • ventral blood vessels carry blood to the back of the body
  • primitive brain, ventral nerve cord receive info and control body
grasshopper:


 

Feeding/Digestion
  • 2 openings
  • uses mandible and two pairs of maxillae for feeding. 
  • 3 main digestive parts are foregut, midgut, and hindgut
Reproduction
  • internal reproduction
  • ovipositors store the eggs
  • newborns often shed skin(metamorphosis)
Respiration, circulation, nervous system
  • openings called spiracles that have tubes that are the respiratory system
  • no lungs
  • has a heart which circulates blood
  • open circulatory system
  • has a brain, nerve cord, and sensory organs
starfish:
feeding/digestion
  • Complete digestion system with a mouth , two stomachs, an intestine, and an anus
  • it uses its digestive glands called pyloric caeca
  • when feeding the starfish stomach pops out and sucks in the food
  • excretes waste through anus
reproduction
  • Hermaphrodites
  • external reproduction in water
  • reproductive organs calles gonads in its arms
  • reproduce asexually by Binary Fission
Respiration, circulation, nervous system
  • ampulla, which are bulbs on the inside of its arms used for respiration and circulation
  • no lungs
  • closed circulatory system
  • water vascular system
  • no brain
  • eyes on each arm 
Grass frog:
Feeding/digestion
  • very similar to us
  •  digestive system consists of a stomach, small intestine, large intestine, and anus
  • feed on insects such as flies, etc.
Reproduction
  • females have a thin string which is called the oviducts
  • Reproduction has to take place in water because tadpoles can only swim
  • external fertilization
Respiration, circulation, nervous system
  • has lungs
  • respiration also takes place through their skin
  • closed circulatory system
  • has a heart and many blood vessels
  • has a brain
  • nervous system is very similar to humans nervous system

 

 
 
 
 

Monday 13 January 2014

frog dissection

These are all of the frogs organs labeled

These are the frogs organs

These are the frogs webbed feet

This is the frogs mouth

This is the top of the frog it was slimy with bumps and had black spots and lines with mostly greenish yellow skin

The bottom of my frog

starfish dissection

The texture on the front of the starfish was very rough and hard to cut through

This is the part of the body that intakes water

The bottom was spiny  with an indent type thing In the middle of each arm

This is the mouth where the starfish eats spits out digestive enzymes

Wednesday 8 January 2014

Grasshopper disection


My grasshopper was a male. It had a closed end(ovipositor) on the bottom of its abdomen and did not have any ovaries inside.

This picture shows the head, antannae, and compound eyes.
This photo shows the thorax which two of the legs are attached to. There is also an abdomen the long spine looking part it has eight segments on it.




The grasshopper has 6 legs. 2 for jumping and 4 are used for walking. These 2 are the jumping legs. The thigh is called the femur , thin leg is called the tibia and the foot is called the tarsus. 
These are the grasshoppers wings.

This is the inside of my grasshopper The big, brown lump at the top is the crop, where the colour starts to get lighter is the gizzard after the gizzard are the stomach and intestines.



I am excited to do more dissections like this except not another insect and learn more about animals. 

Tuesday 7 January 2014

Hercules Beetle

The Hercules beetle is a species of rhinoceros beetle that lives in South America. This beetle is the STRONGEST ANIMAL. It can grow to over 6 inches in length, but its most famous trait is its strength. The Hercules beetle can support 850 times its own weight on its shell. This beetle is vegetarian and is not aggressive, except to other Hercules beetles, when males fight each other over females. This species is very successful because every other animal fears it. This species is not harmful to humans or the environment. They are vegetarians so they eat decaying fruits and rotten wood.

                                                 In this video the man is trying to lift the 
                                                   beetles but cant do it without severe pain.