Agnatha Common Name Representatives General Features “Jawless Fishes” sea lamprey‚ hagfish no jaws unpaired fins eel-like bodies notochord persists cartilage skeleton no scales smooth‚ slimy skin lamprey sucker-like mouth with teeth parasite of fish 2 chambered heart gills lamprey swims in a rippling manner external fertilization lamprey - larva‚ metamorphosis Chondrichthyes “Cartilagenous Fishes” sharks‚ skates‚ rays movable jaws paired fins cartilage skeleton Osteichthyes “Bony Fishes” salmon
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Reactions Personified! What Happens When Mirrors Get into Jungle? Mirrors may be the usual part of our daily life but for animals they may turn entirely different. This video captures all those reactions these animals tend to show the moment they come across a mirror. Some of them do not really care‚ whereas some of them appear being confused or at times very angry as well. Is It Me? These animals upon coming across the mirrors were entirely reacting in a different manner. In the first instance‚
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The eagle came around in a curve at the bird‚ the slots on the ends of the wings clattering above him; and then‚ just as he ducked his head to avoid the shining curved beak‚ the braced black and brown feathers‚ the sky was amazingly empty in front of him. The eagle had flicked over as lightly as a swallow‚ with no sign of panic or haste. He looked down and saw it below him‚ circling as quietly as if nothing in the morning
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While I traveled to the Galapagos‚ I noticed many variations in the finch species. From island to island‚ each finch bird has a different type of beak. I hypothesize this is because each island has different food sources so each bird adapted to their environment. Some have sharp‚ thin beaks to separate insects while others on different islands have shorter beaks to pick seed off the ground. I understand that in your research with peas you have found out that offspring inherit only traits that the parents
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onto my sheep. Now I’m not racist ‚ but there’s just something about a sheep that I had to have a black one. I took care of that sheep for four years. Then I stabbed it and moved to Norway. Please enjoy this poem Yellow Beak A man owns a green parrot with a yellow beak that he carries on his shoulder each
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that is resistant to that antibiotic. Disruptive selection occurs when two or more extreme phenotypes are favored over an intermediate phenotype. An example would be a bird with a large beak‚ who can handle large seeds and a bird with a small beak that can handle small seeds. A bird with an intermediate size beak cannot handle small or large seeds. 2. Antibiotic resistant bacteria evolve in two ways‚ either through a random mutation or by bacteria swapping antibiotic resistant genes. With the increased
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of the largest in the parrot family‚ they measure around 30 inches from the tip of the beak to the extreme and of the tail's feathers. The size of their wings exceeds a length of 40 inches. These birds possess a relatively long lifespan of over 50 years. A majority of military macaws are vibrant green in colour‚ with radiant blue edged wings and a striking patch of red on the forehead. Magnificent black beak matching with dull gray feet adds an enigmatic charm to the bird.
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You can put a red or green feather in water‚ and the water will turn pink or green. The Guinea Turaco has a crest that is 2 inches tall and is quite attractive. They are mostly green with a tail that is long‚ and their eyes are red‚ and so is their beak. They are 19 to 20 inches long and will weigh less than 1 pound. They like to eat fruit‚ flowers‚ leaves and termites‚ seed pods‚ acacia‚
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during severe drought conditions‚ the birds’ food supply was reduced to tough spikey seeds‚ and only the finches with the thickest beaks survived because they were able to break open the seeds. The birds with thinner beaks died off. During a time when heavy storms and floods struck the islands‚ only tiny seeds were left‚ making it necessary for the finches to have slender beaks in order to eat and survive. Therefore‚ these finches began to flourish and the thick-beaked birds were unable to
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The Polar Bear (Ursus maritimus) is a bear native largely within the Arctic Circle encircling the Arctic Ocean‚ its surrounding seas and land masses. Although it is closely related to the Brown Bear‚ it has evolved to occupy a narrower ecological forte‚ with many body characteristics adapted for cold temperatures‚ for moving across snow‚ ice‚ and open water‚ and for hunting the seals which make up most of its diet. Though there are many theories surrounding evolution‚ the two stand outstanding hypotheses
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