Adapoids and Omomyoids divided food type resources as a way to avoid competion, driving species development further away from each other. This is seen as what? 01. Early use of tools to hunt and eat meat 2. A precursor to bipedalism 3. An example of a selective pressure that may have favored the strepsirhine and haplorhine split 4. A response to the geologic transition to open Savannahs

Adapoids and Omomyoids divided food type resources as a way to avoid competion, driving species development further away from each other. This is seen as what? 01. Early use of tools to hunt and eat meat 2. A precursor to bipedalism 3. An example of a selective pressure that may have favored the strepsirhine and haplorhine split 4. A response to the geologic transition to open Savannahs

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter15: Animal Evolution

Section: Chapter Questions

Problem 1DID

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What form of competition was occurring in this paramecium example? 200 150 P. aurelia 100 50 P. caudatum 4 8 16 20 24 Days a) interference, interspecific competition b) exploitative, interspecific competition c) apparent, intraspecific competition d) exploitative, intraspecific competition Population volume/mL 12
What is in the top row of the Leslie matrix? Оа. Number of individuals in the stage class O b. Stage transition rates O C. Fecundity rates O d. Survival rates
TejaTscharntke’s studies of the food web associated with Phragmites reeds revealedthat:a.only a single parasitoid species can persist exploiting a single speciesof herbivore.b.only a single herbivore species can persist attacking a single speciesof plant.c.predation by birds actually protects herbivores, because the birds feedon parasitoid-infested herbivore galls but not uninfested galls.d.within local food webs, all interactions tend to be of roughly the samestrength.e.recognizing variation in interaction strength can greatly simplify thedepiction of a food web.
These finches all evolved from a common ancestor. They adapted characteristics which made them each a different species. 1. What is the term for a new species evolving. 2. Analyze the different beak shapes and sizes in this image, then explain why you think the birds beaks are shaped the way that they are shaped. 1. Geospiza magnirostris. 3. Geuspiza parvula. 2. Geospiza fortis. 4. Certhiidea olivasea.
Consider why there might be natural selection for poisonous plants to warn potential herbivores with bright colors, but why there seems to be no similar selective pressure for poisonous mushrooms to do the same. Which of the following best explains this difference? a) Fungi, like mushrooms, do not rely on photosynthesis and hence do not need to attract or warn herbivores with bright colors. Plants have a symbiotic relationship with herbivores, which is not the case for mushrooms. Mushrooms are typically more toxic than plants, so there is no need for them to develop warning colors. Most of a fungus's body is the mycelium which exists underground, hence consumption of the above-ground mushroom cap represents a comparatively smaller fitness cost than for plants, whose vital photosynthetic structures can be consumed by herbivores.
Why evolve bipedalism? What are some of the selective pressures/benefits?
Part A) Ecology is defined as the interaction of organisms and their environment. An example(s) of environmental conditions is/are: temperature nutrients sunlight all of these. Part B)DR TJ freaks out because she doesn’t hear any cicadas singing in January. If she understood the biology of these animals she would know that was because adult cicadas do not emerge from underground until summer! Dr TJ should have a better understanding of the importance of ___ in studying ecology. timing spatial distributions none of these Part C)If I read 50 papers on phenotypic plasticity in sea stars and they all showed that these animals exhibit behaviors that allow them to persist under temperature stress, this would be an example of ____ in science. detection measurement repeatability
Which of the following situations has revealed that mutualistic interactions can evolve from prior parasitic relationships? A. Yucca plants are pollinated only by moths of the genus Tegeticula; however, some of the moth species 'cheat" by laying eggs on seeds without pollinating the plant. B. Large-sized lice of the genus Columbicola tended to live on larger species of pigeons. Body size matching had a significant effect on the ability of lice to escape defensive preening by the host bird. C. The nonvenomous yellow-eyed salamander has the same coloration as the toxic California newt. Related nontoxic salamanders which do not mimic the newts are prone to attacks by predators. D. Glochidion trees and Epicephala moths are in an obligate mutualism with each other. Significant cospeciation led to an increase in diversity of the two species.
Read this quote from Charles Darwin (from Origin of Species). What is he describing? "Thus, I can understand how a flower and a bee might slowly become, either simultaneously or one after the other, modified and adapted to each other in the most perfect manner, by the continued preservation of all the individuals which presented slight deviations of structure mutually favorable to one another." An interaction network. A predator/prey cycle. O Coevolution. An obligate mutualism.
Which of the following factors makes species recognition receptors on the sea urchin egg membrane important? Group of answer choices a. high levels of sexual selection b. external fertilization c. carnivorous larvae d. type III survivorship curve e. cytoplasmic determinants
Which of these following scenarios is caused by the Allee effect? Corals rely on external fertilization when gametes (sperm and eggs) are released into the sea in large quantities and have to meet at random chance. When coral densities drop due to coral bleaching and die back, external fertilization becomes inefficient, few zygotes form, and coral populations further decline or go extinct. After a big disturbance in forests, such as fire, many seeds germinate and seedlings compete for space, light and resources. K-selected species produce fewer, but larger seeds that are initially outnumbered by the numerous sEeds and resulting seedlings of r-selected species. The initial advantage of r-selected species of Occupying more locations and therefore by random chance also better locations, is later overcome by the K-selected species higher competitive ability. Therefore, for the first years to decades, r-selected species dominate areas that experienced severe disturbances, while in mature…
Part A)DR TJ freaks out because she doesn’t hear any cicadas singing in January. If she understood the biology of these animals she would know that was because adult cicadas do not emerge from underground until summer! Dr TJ should have a better understanding of the importance of ___ in studying ecology. timing spatial distributions none of these Part B)If I read 50 papers on phenotypic plasticity in sea stars and they all showed that these animals exhibit behaviors that allow them to persist under temperature stress, this would be an example of ____ in science. detection measurement repeatability