Segmented Worms
... hold that distinction. With a relatively small number of genes—97 million bases as opposed to 3 billion in humans—C. elegans is easy to observe and manipulate genetically. The genome of C. elegans is surprisingly similar to that of humans (40 percent similarity). This little worm also carries out so ...
... hold that distinction. With a relatively small number of genes—97 million bases as opposed to 3 billion in humans—C. elegans is easy to observe and manipulate genetically. The genome of C. elegans is surprisingly similar to that of humans (40 percent similarity). This little worm also carries out so ...
Vertebrates
... differ from other chordates in other important respects: 1. Neural crest. A unique group of embryonic cells called the neural crest contributes to the development of many vertebrate structures. These cells develop on the crest of the neural tube as it forms by an invagination and pinching together o ...
... differ from other chordates in other important respects: 1. Neural crest. A unique group of embryonic cells called the neural crest contributes to the development of many vertebrate structures. These cells develop on the crest of the neural tube as it forms by an invagination and pinching together o ...
Benjamin Frank Moginie - VUW research archive
... history, phenotype and behaviour on (1) the performance of recently settled juveniles, and (2) the reproductive success adult males. I made field-based observations of adult males during the breeding season, measured their phenotypic traits (body size and condition) and used their otoliths to recons ...
... history, phenotype and behaviour on (1) the performance of recently settled juveniles, and (2) the reproductive success adult males. I made field-based observations of adult males during the breeding season, measured their phenotypic traits (body size and condition) and used their otoliths to recons ...
Macmillan Science Library - Animal Sciences Vol..
... Six hundred million years of animal evolution and adaptation have produced a stunning range and variety of life on Earth. From the oldest, single-celled creatures to the most complex mammalian forms, animal diversity defies easy categorization or explanation. The Macmillan Animal Sciences encycloped ...
... Six hundred million years of animal evolution and adaptation have produced a stunning range and variety of life on Earth. From the oldest, single-celled creatures to the most complex mammalian forms, animal diversity defies easy categorization or explanation. The Macmillan Animal Sciences encycloped ...
Unit 4: Chapter 1: Populations
... oil keeps the feathers in good condition. Birds unable to oil their feathers properly use more energy in maintaining their body temperature. This results in less energy being available for other processes. Scientists investigated the relationship between the numbers of feather mites and the breeding ...
... oil keeps the feathers in good condition. Birds unable to oil their feathers properly use more energy in maintaining their body temperature. This results in less energy being available for other processes. Scientists investigated the relationship between the numbers of feather mites and the breeding ...
Notes towards Biodiversity Chapter 5
... The modifications come from Anderson (1999), Lévêque and Mounolou (2001), Broswimmer (2002), Futuyma (2005) and Wikipedia Contributors (2006c). Time periods rather than fixed dates are given for the older mass extinctions because the literature gives variable dates. (The mode time value has been sel ...
... The modifications come from Anderson (1999), Lévêque and Mounolou (2001), Broswimmer (2002), Futuyma (2005) and Wikipedia Contributors (2006c). Time periods rather than fixed dates are given for the older mass extinctions because the literature gives variable dates. (The mode time value has been sel ...
Notes towards Biodiversity Chapter 6
... For palaeontology, a species is a morphologically identifiable form. Some living species cannot be morphologically separated by skeletal features so a single fossil ‘species’ may consist of more than one biological species (Futuyma 1998). For some groups, living species can be differentiated by skel ...
... For palaeontology, a species is a morphologically identifiable form. Some living species cannot be morphologically separated by skeletal features so a single fossil ‘species’ may consist of more than one biological species (Futuyma 1998). For some groups, living species can be differentiated by skel ...
Chapter 30: Mammals
... especially the cerebrum. The cerebral cortex, shown in Figure 30.8, is the highly folded outer layer of the cerebrum. The foldings allow the brain to have a larger surface area for nerve connections while allowing it to still fit inside the skull. The cerebral cortex is responsible for coordinating ...
... especially the cerebrum. The cerebral cortex, shown in Figure 30.8, is the highly folded outer layer of the cerebrum. The foldings allow the brain to have a larger surface area for nerve connections while allowing it to still fit inside the skull. The cerebral cortex is responsible for coordinating ...
File
... coelomate invertebrate animal with bilateral symmetry, an exoskeleton, and jointed structures called appendages. • An appendage is any structure, such as a leg or an antenna, that grows out of the body of an animal. ...
... coelomate invertebrate animal with bilateral symmetry, an exoskeleton, and jointed structures called appendages. • An appendage is any structure, such as a leg or an antenna, that grows out of the body of an animal. ...
Chapter 10 Muscles powerpoint
... Smooth muscle cells are found in the walls of internal organs, have one nucleus, are not striated, and contract involuntarily. Cardiac muscle cells form the walls of the heart; have one nucleus, are striated, tubular, and branched; and contract involuntarily. The fact that skeletal muscles can ...
... Smooth muscle cells are found in the walls of internal organs, have one nucleus, are not striated, and contract involuntarily. Cardiac muscle cells form the walls of the heart; have one nucleus, are striated, tubular, and branched; and contract involuntarily. The fact that skeletal muscles can ...
chapter
... body organization. Active, directed movement requires an elongated body form with head (anterior) and tail (posterior) ends. In addition, one side of the body faces up (dorsal) and the other side, specialized for locomotion, faces down (ventral). What results is a bilaterally symmetrical animal in w ...
... body organization. Active, directed movement requires an elongated body form with head (anterior) and tail (posterior) ends. In addition, one side of the body faces up (dorsal) and the other side, specialized for locomotion, faces down (ventral). What results is a bilaterally symmetrical animal in w ...
Quadrats Online: Teacher Notes
... A quadrat is a tool used to record the abundance or density of a particular species in a study area. In some instances it may be possible to simply count the number of organisms of a particular species in an area. However, in most cases counting all of the organisms would not be practical and other ...
... A quadrat is a tool used to record the abundance or density of a particular species in a study area. In some instances it may be possible to simply count the number of organisms of a particular species in an area. However, in most cases counting all of the organisms would not be practical and other ...
EOC notecard review - week of 03.28.16.notebook
... #172 AUTOTROPH organism which can chemically produce their own food. #173 FOOD PYRAMID successive levels of predation in a food chain. ...
... #172 AUTOTROPH organism which can chemically produce their own food. #173 FOOD PYRAMID successive levels of predation in a food chain. ...
Estimating Relative Energy Fluxes Using the Food Web, Species
... height; some definitions were more likely than others to correspond to methods of measuring trophic height based on stable isotope analysis. The flux models were also used to develop an ecosystem sampling theory that associated p-values to statements that a given trophic link did not occur in a syst ...
... height; some definitions were more likely than others to correspond to methods of measuring trophic height based on stable isotope analysis. The flux models were also used to develop an ecosystem sampling theory that associated p-values to statements that a given trophic link did not occur in a syst ...
Some important factors affecting fertility in sheep
... (Forcada and Abecia, 2006). In particular, nutrition is one of the main factors affecting ovulation rate. Generally sheep will be at grass for half of the year, however during winter or at lambing they may be housed or given extra feed at grass. It is important to get the nutrition right to prevent ...
... (Forcada and Abecia, 2006). In particular, nutrition is one of the main factors affecting ovulation rate. Generally sheep will be at grass for half of the year, however during winter or at lambing they may be housed or given extra feed at grass. It is important to get the nutrition right to prevent ...
SICB 2009 Annual Meeting Abstracts
... polypteriform fishes Fishes are found in a variety of habitats: from open water to extremely vegetated areas. Highly elongated fishes are often found in structured habitats and appear to use these structures to propel themselves while swimming. Previous studies have shown that limbless lizards and s ...
... polypteriform fishes Fishes are found in a variety of habitats: from open water to extremely vegetated areas. Highly elongated fishes are often found in structured habitats and appear to use these structures to propel themselves while swimming. Previous studies have shown that limbless lizards and s ...
Life in the Aftermath of Mass Extinctions
... temporal resolution (thousands rather than millions of years) and directly assess species level changes [17], but cannot resolve rates globally or in rarely to never fossilized clades. Even in well-fossilized clades, it can be difficult to assess whether a species is extinct or just rare, as rare sp ...
... temporal resolution (thousands rather than millions of years) and directly assess species level changes [17], but cannot resolve rates globally or in rarely to never fossilized clades. Even in well-fossilized clades, it can be difficult to assess whether a species is extinct or just rare, as rare sp ...
physiological differentiation of vertebrate
... coloration (e.g. Allen's, Bergmann's, Gloger's) is highly questionable (39, 117, 139, 157, 173, 174, 252, 312, 327), and thorough "common garden" (60a) studies are rare (but see 77, 196, 252). Island populations also show characteristic patterns of gigantism or dwarfism (24, 25, 83, 226), but physio ...
... coloration (e.g. Allen's, Bergmann's, Gloger's) is highly questionable (39, 117, 139, 157, 173, 174, 252, 312, 327), and thorough "common garden" (60a) studies are rare (but see 77, 196, 252). Island populations also show characteristic patterns of gigantism or dwarfism (24, 25, 83, 226), but physio ...
2014, vol 24 - Department of Biological Sciences
... the Organization for Tropical Studies (OTS/OET), at the OTS field stations at Palo Verde, Las Cruces and La Selva, at the Cuerici Biological Station, at the Sirena Station of the Corcovado National Park, and at the Monteverde Biological Station. On Little Cayman Island, there are copies at the Littl ...
... the Organization for Tropical Studies (OTS/OET), at the OTS field stations at Palo Verde, Las Cruces and La Selva, at the Cuerici Biological Station, at the Sirena Station of the Corcovado National Park, and at the Monteverde Biological Station. On Little Cayman Island, there are copies at the Littl ...
Seasonal shifts in predator diversity
... In most populations, the size distribution (i.e. relative abundance of size classes) changes during a season. I used a field experiment to test (i) how seasonal changes in size distribution influence the mortality rates of natural populations and (ii) whether the change in mortality can be predicted s ...
... In most populations, the size distribution (i.e. relative abundance of size classes) changes during a season. I used a field experiment to test (i) how seasonal changes in size distribution influence the mortality rates of natural populations and (ii) whether the change in mortality can be predicted s ...
SICB 2009 Annual Meeting Abstracts
... polypteriform fishes Fishes are found in a variety of habitats: from open water to extremely vegetated areas. Highly elongated fishes are often found in structured habitats and appear to use these structures to propel themselves while swimming. Previous studies have shown that limbless lizards and s ...
... polypteriform fishes Fishes are found in a variety of habitats: from open water to extremely vegetated areas. Highly elongated fishes are often found in structured habitats and appear to use these structures to propel themselves while swimming. Previous studies have shown that limbless lizards and s ...
Bioenergetics
... Write word and symbol equations for photosynthesis – produce cards for equation and put into correct order. ...
... Write word and symbol equations for photosynthesis – produce cards for equation and put into correct order. ...