BIOL 111 Study Guide - Final Guide: Coelom, Gallbladder, Hindbrain

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BIOL 111 Full Course Notes

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Stereotypic: behavior is almost always the same. Species specific: similar in members of the same species but differs between different species. Body: divided into the head, the trunk and the tail (the gill openings mark the border between the head and the trunk, while the anal/urogenital openings mark the bored between the tail and the trunk) Body surface: covered with hard scales that are arranged to assist in stream lining. Ctenoid scale: possess growth rings annuli, which are used to age the fish, the projecting edge has small, comb-like teeth called ctenii, the entire scale is covered in epithelium. External nares: nostrils, open into the olfactory pits (organs of smell), not connected to the respiratory system water enters through the anterior nasal opening and leaves through the posterior opening. Opercula: gill covers, protection for the respiratory structure and aid in pumping water over the gills. Gills: contain four gill arches each with two rows of gill filaments.

Related Questions

Briefly explain why similar genetic sequences can indicate closerelationships between different species

plumsquirrel394

Q6. Identify 2 scientific (genetic) reasons why scientists can justify working with model organisms when the ârealâ interest is in the genetics of other organisms.

7. The things that are True about animal breeding areâ¦(check all that are correct)

___a. animal breeders need to select the parents carefully

___b. breeding can only be done between 2 animals of the same species.

___c. animal breeders have a goal of improving a trait or traits in their breed or species of animal

___d. they all have the same traits they want to improve, no matter what the animal species or breed.

___e. animal breeders are only interested in traits for which selection is obvious and the genetic control or inheritance is easy to predict

___f. animal breeding is only done on domestic animals not wild animals

___g. animal breeding would be much easier if there was no variation within a species in the genes that control their traits.

___h. although slightly more difficult, breeding between 2 different species (ex. cat and dogs) can be done just as breeding within the same species.

Q8. Describe two differences and two similarities between plant breeding and animal breeding.

Describe specifically what you would need to do to decide whether two different individual organisms are members of the same species or not, under the following species concepts:

a.) phenotypic,

Ok, so this one would have to be based on phenotypes correct? say fossil records could show same bone structures like jaws etc. and then birds could be differentiating between beaks, color, and wing size?

b.) "biological"

this one and phylogenetic confuse me. won't you have to look at dna to decide if they're alike? or does biological mean something else?

c.) 'ecological'
This one would just be to check if they can breed with each other right? even though there can be seperation by continents, if they can breed theyre still the same species right?

d.) phylogenetic
this one and biological confusese me. won't you have to look at dna to decide if they're same species or not? or whats the difference from biological and phylogenetic?

BIOL 111 Study Guide - Final Guide: Coelom, Gallbladder, Hindbrain

BIOL 111 Full Course Notes

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