Unit 6-1 Biotic and Abiotic Components
... The purpose of this lab is to identify the biotic and abiotic elements of two local ecosystems, one disturbed and one undisturbed. Your instructor will take you to two different outdoor locations, where you will perform a survey of all the biotic and abiotic elements that make up each ecosystem. The ...
... The purpose of this lab is to identify the biotic and abiotic elements of two local ecosystems, one disturbed and one undisturbed. Your instructor will take you to two different outdoor locations, where you will perform a survey of all the biotic and abiotic elements that make up each ecosystem. The ...
Echinoderms
... – A few brood their young inside the body or on the body surface • Biology – Sea cucumbers use ventral tube feet and muscular body waves to move – Some trap particles on the mucus of tentacles, ingesting food particles in pharynx – Others graze sea bottom with tentacles – Cast out part of viscera wh ...
... – A few brood their young inside the body or on the body surface • Biology – Sea cucumbers use ventral tube feet and muscular body waves to move – Some trap particles on the mucus of tentacles, ingesting food particles in pharynx – Others graze sea bottom with tentacles – Cast out part of viscera wh ...
biology - westminster.org.uk
... decreased from about 17 years to about 12 years of age. It has been suggested that a change to a higher fat diet is largely responsible for this decrease. With reference to the data in Fig. 4.1, evaluate the evidence that changes in diet may be responsible for this decrease in the age of onset of pu ...
... decreased from about 17 years to about 12 years of age. It has been suggested that a change to a higher fat diet is largely responsible for this decrease. With reference to the data in Fig. 4.1, evaluate the evidence that changes in diet may be responsible for this decrease in the age of onset of pu ...
Chapter 9
... longitudinal axis produces mirrored halves n Usually sessile, freely floating, or weakly swimming animals n No anterior or posterior end n Can interact with environment in all directions ...
... longitudinal axis produces mirrored halves n Usually sessile, freely floating, or weakly swimming animals n No anterior or posterior end n Can interact with environment in all directions ...
Chapter 7- Ecology of Phenotypic Plasticity
... 1) Why aren't costs of plasticity measured in the ultimate context-that of annual or lifetime production of offspring? Even better- why not look at the output of these offspring as the ultimate expression of fitness (in order to correct for some of the Bradshaw-Sultan effect). Throughout Pigliucci's ...
... 1) Why aren't costs of plasticity measured in the ultimate context-that of annual or lifetime production of offspring? Even better- why not look at the output of these offspring as the ultimate expression of fitness (in order to correct for some of the Bradshaw-Sultan effect). Throughout Pigliucci's ...
An Agony in Five Fits (R
... individual male who lived a million years ago, it is virtually certain that you are descended from him too. The fitness of any particular long-dead individual, as measured in present-day descendants, is either zero or total. Williams would presumably say that if this is a problem it is so only for p ...
... individual male who lived a million years ago, it is virtually certain that you are descended from him too. The fitness of any particular long-dead individual, as measured in present-day descendants, is either zero or total. Williams would presumably say that if this is a problem it is so only for p ...
Proifera
... circulatory system because all of their cells are already in contact with water, which contains all the nutrients they need. ...
... circulatory system because all of their cells are already in contact with water, which contains all the nutrients they need. ...
Controversies in the evolutionary social sciences: a guide for the
... that solve discrete social problems such as mate choice, free-rider detection and parental solicitude. From this perspective, organisms (including humans) are ‘adaptation executers’ that respond to environmental cues in any specific domain (e.g. mate choice) using mental modules evolved for that spe ...
... that solve discrete social problems such as mate choice, free-rider detection and parental solicitude. From this perspective, organisms (including humans) are ‘adaptation executers’ that respond to environmental cues in any specific domain (e.g. mate choice) using mental modules evolved for that spe ...
Lifetime Reproductive Effort
... the variation of LRE (tables 1, A1, A2). However, due to the inherently high measurement error, distilling such meaning from our estimates is not feasible with our current data. In table 1 we give the mean and standard deviation for the six mammalian orders and seven lizard families for which we hav ...
... the variation of LRE (tables 1, A1, A2). However, due to the inherently high measurement error, distilling such meaning from our estimates is not feasible with our current data. In table 1 we give the mean and standard deviation for the six mammalian orders and seven lizard families for which we hav ...
Describe
... abundant and attach to rocks or water plants by means of a sticky secretion. •Marine Hydrozoa Marine hydrozoans are more complex than freshwater hydrozoans and often form colonies. •Reproduction in Hydrozoans Most hydrozoans are colonial organisms that reproduce asexually, though many forms can also ...
... abundant and attach to rocks or water plants by means of a sticky secretion. •Marine Hydrozoa Marine hydrozoans are more complex than freshwater hydrozoans and often form colonies. •Reproduction in Hydrozoans Most hydrozoans are colonial organisms that reproduce asexually, though many forms can also ...
Cnidaria - Raleigh Charter High School
... sponge and taken into the pore systems of its neighbors in the same way as food items. Spermatozoa are "captured" by collar cells, which then lose their collars and transform into specialized, amoeba-like cells that carry the spermatozoa to the eggs. Some sponges are monoecious; others are dioecious ...
... sponge and taken into the pore systems of its neighbors in the same way as food items. Spermatozoa are "captured" by collar cells, which then lose their collars and transform into specialized, amoeba-like cells that carry the spermatozoa to the eggs. Some sponges are monoecious; others are dioecious ...
document
... development in which none of the daughter cell’s have a predetermined function and some daughter cells could even form a new organism. ...
... development in which none of the daughter cell’s have a predetermined function and some daughter cells could even form a new organism. ...
Jelena – proposal 27
... Assessment of additive, cumulative, synergistic or antagonistic adverse effects is based on the environmental risk assessment data for the StaEv LMO in comparison to of the closely related non-modified recipient species and the parent LMOs in the likely receiving environment, taking into considerati ...
... Assessment of additive, cumulative, synergistic or antagonistic adverse effects is based on the environmental risk assessment data for the StaEv LMO in comparison to of the closely related non-modified recipient species and the parent LMOs in the likely receiving environment, taking into considerati ...
LIFE-HISTORY EVOLUTION IN REPTILES
... must make arbitrary choices about what to leave out, as well as what to include; thus, I will ignore some of the themes emphasised in previous syntheses (e.g., reproductive physiology, life-history trade-offs) and focus instead on a framework that is centered upon two of the most distinctive ecologi ...
... must make arbitrary choices about what to leave out, as well as what to include; thus, I will ignore some of the themes emphasised in previous syntheses (e.g., reproductive physiology, life-history trade-offs) and focus instead on a framework that is centered upon two of the most distinctive ecologi ...
LJ J , J--kLt.vLl - Evolutionary Biology
... population would become extinct if it overexploited its food resources; such between-population selection has fixed population-level adaptations to prevent extinction (such as animal displays to signal population density and thereby limit the risk of resource overexploitation). The most important cr ...
... population would become extinct if it overexploited its food resources; such between-population selection has fixed population-level adaptations to prevent extinction (such as animal displays to signal population density and thereby limit the risk of resource overexploitation). The most important cr ...
Fall Exam 2015 Zoology Study Guide Part 1 Scientific method What
... In order, list the parts of the digestive tract through which food passes in earthworms. Be able to identify the EXTERNAL structures (5) of the earthworm. What are setae used for in annelids? What structure in earthworms plays a primary role in the circulatory system? What types of muscles help anne ...
... In order, list the parts of the digestive tract through which food passes in earthworms. Be able to identify the EXTERNAL structures (5) of the earthworm. What are setae used for in annelids? What structure in earthworms plays a primary role in the circulatory system? What types of muscles help anne ...
13_1 _Autosaved_
... If observation and experimentation don’t work…turn to modeling • Computer and mathematical models can be used to describe and model nature. Ex: GPS transmitter • Modeling allows scientists to learn about organisms or ecosystems in ways that would not be possible in a natural or lab setting. ...
... If observation and experimentation don’t work…turn to modeling • Computer and mathematical models can be used to describe and model nature. Ex: GPS transmitter • Modeling allows scientists to learn about organisms or ecosystems in ways that would not be possible in a natural or lab setting. ...
Energy Flow
... Energy Flow: FOOD CHAINS & WEBS EQ: How does energy transfer though the ecosystem? ...
... Energy Flow: FOOD CHAINS & WEBS EQ: How does energy transfer though the ecosystem? ...
The formal Darwinism project: a mid
... an optimization programme on the other. To capture the whole of Darwin’s argument, these formal links must be made as general as possible, in a number of ways. Genetic architecture is vital to the equations of motion, but secondary to the concept of natural selection – after all Darwin knew nothing ...
... an optimization programme on the other. To capture the whole of Darwin’s argument, these formal links must be made as general as possible, in a number of ways. Genetic architecture is vital to the equations of motion, but secondary to the concept of natural selection – after all Darwin knew nothing ...
Phenotypic diversity as an adaptation to environmental uncertainty
... Gillespie, 1973; Sasaki and Ellner, 1995; Leimar, 2005). However, since natural selection does not generally maximize the geometric mean population fitness, Levins’s fitness set framework is poorly suited to this kind of analysis (Seger and Brockmann, 1987; Godfrey-Smith, 1996). On the other hand, p ...
... Gillespie, 1973; Sasaki and Ellner, 1995; Leimar, 2005). However, since natural selection does not generally maximize the geometric mean population fitness, Levins’s fitness set framework is poorly suited to this kind of analysis (Seger and Brockmann, 1987; Godfrey-Smith, 1996). On the other hand, p ...
Seasonal Timing of Reproduction and Hibernation in the Edible
... p < 0.01). This duration (of 10 months in adults) probably exceeds the actual hibernation period since we trapped at two-week intervals only, and because expectedly, animals were less prone to capture after prehibernation fattening in fall. It is known that dormice typically hibernate for around eig ...
... p < 0.01). This duration (of 10 months in adults) probably exceeds the actual hibernation period since we trapped at two-week intervals only, and because expectedly, animals were less prone to capture after prehibernation fattening in fall. It is known that dormice typically hibernate for around eig ...
Phylum Cnidaria - Ms.Feld's Science
... hanging down from the center of the underside, with the mouth at its tip. ...
... hanging down from the center of the underside, with the mouth at its tip. ...
Vestigial structures have no function but may still be
... other species. Therefore, vestigial structures can be considered evidence for evolution, the process by which beneficial heritable traits arise in populations over an extended period of time. The existence of vestigial traits can be attributed to changes in the environment and behavior patterns of t ...
... other species. Therefore, vestigial structures can be considered evidence for evolution, the process by which beneficial heritable traits arise in populations over an extended period of time. The existence of vestigial traits can be attributed to changes in the environment and behavior patterns of t ...