Evo Mammo - Study Guide Answers 2 - Evo Mammo Exam 2 Study...

This preview shows page 1 - 3 out of 14 pages.

We have textbook solutions for you!
The document you are viewing contains questions related to this textbook.
Biology: The Unity and Diversity of Life
The document you are viewing contains questions related to this textbook.
Chapter 45 / Exercise 4
Biology: The Unity and Diversity of Life
Starr/Taggart
Expert Verified
Evo MammoExam 2 Study GuideThe Basics and Theories Question 1 - locomotion1. Plantigrade - form of locomotion in which the organism walks by planting its whole foot down (with podials and metatarsals flat)2. Digitigrade - the organism walks on the digits and toes with their wrists and heels per-manently raised. 3. Unguligrade - the organism walks on the last phalanges or tips of their digits. Such or-ganisms almost always have hooves, which act as keratinized sheaths atop their toes. -Stride Length: the distance between two successive placements of the same foot when walking or running.-Lever Arm: bone length from where force is applied to the pivot point. A longer lever arm equates to more power, indicative of greater muscle strength needed.-Load Arm: bone length from the pivot point to where the movement actually occurs. *Carnassials: enlarged and blade-like in carnivores used for slicing and chopping: wolf*Bunodont: low mounted cusps, not super-sharp; quadrate asa result of the loss of the paraconid. BROAD DIETS. Humans. *Hypsodont: high crowned, extend high above gumline providing extra-material for wear. For animals that feed on abrasive substances: cows and deers.*Brachydont: low crowned teeth, omnivorous diet. Humans. *Bilophodont: 2 elongated transverse ridges between cusps called “lophs” (think GRATER rather than washboard).*Selenodont: “crescent moon teeth” - crescent like ridges on the crown to incorporate more enamel as a sharper cutting surface: sheep and gazelle *Loxodont: “WASHBOARD” like teeth, shallow hollows between ridges of molars; slop-ing: elephant*Diastema: gap between the two teeth, most commonly between the incisor and mol-ars; sometimes seen in organisms with large canines to accommodate the large teeth. *Lophs: on molar teeth, a ridge connecting cusps*Quadrate: major cusps are: hypo, proto, meta, entoconid. Question 2 - Diet1. Carnivorous - faunivore, piscivore, insectivore)2. Herbivore - frugivory, folivory, gummivore, nectivore, granivore3. Omnivore-Insectivory: excellent source of nutrition, high in calories, fat and protein. Insectivores, tend to be very small animals, as insects couldn’t sustain a larger animal. Anteaters manage by eating obscene amounts of insects. They often have sharply pointed teeth, for piercing the carapaces of insects.
We have textbook solutions for you!
The document you are viewing contains questions related to this textbook.
Biology: The Unity and Diversity of Life
The document you are viewing contains questions related to this textbook.
Chapter 45 / Exercise 4
Biology: The Unity and Diversity of Life
Starr/Taggart
Expert Verified
-Folivory: high in proteins and calories. Foliage is tough to digest due to cell walls, so folivorous animals often have a long digestive tract, usually with microbes, to process the food down to nutrients. Some folivores even have chambered or sacculated stom-achs. They have spatulate incisors, tall teeth with thick enamel to endure the wear. -Carnivory: They have a much simpler, shorter digestive tract. Cats have a sandpapery tongue use to scrape the flesh off of the bones. Canis lupus (wolves) have their back teeth like scissor-like that slice back and forth against each other, the front teeth pierce to procure the food. Hypercarnivores are 100% meat eaters, but most carni-vores are not hypercarnivores.-

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture