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SCIENCE: BIOLOGY

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Price: $36.00

HORSES.
Describes the evolutionary development of horses. Evidence obtained from fossil records that supports the anagenetic view of horse phylogeny as well as cladogenetic pattern. Fossil record as a clasic example of macroevolution. Branching speciation. Support of the view that a gradual microevolutionary process occurred within the species. Focuses on the North American Eocene and Oligocene fossil records.
A Cladogenetic View of the Early Evolutionary History of Horses
Abstract
Drawing upon the theoretical and empirical literature, this... more
9 pages | 8 sources | 43 citations | APA citation style

Price: $44.00

BLACK WIDOW SPIDERS.
Examination of the widow spiders as most dangerous to humans in North America. Spiders as arthopods. Scientific analysis of the species. Webs of black widow. Three types of black widow spiders in the U.S. Description of the Southern, Western and Northern female. The European black widow. Adult male black widow spiders. Mating process. Spider bites.
Spiders are arachnids, a group of arthropods which includes scorpions, harvestmen, mites, and ticks (Akre, Catts and Antonelli, 2001). Spiders have... more
11 pages | 13 sources | 58 citations | APA citation style

Price: $16.00

THE ENDOCRINE SYSTEM.
Discusses functions of this group of glands. Main function to secrete hormones into the bloodstream. Control of various bodily functions such as growth, glucose control, blood pressure regulation, development of secondary sexual characteristics. Actions of the pituitary gland.;feedback mechanism. Effect of hormones on organs and glands. Examples of feedback control.
The Endocrine System
The endocrine system is a group of glands whose function is to secrete hormones directly into the bloodstream (Berkow, Beers... more
4 pages | 4 sources | 7 citations | APA citation style

Price: $12.00

DIFFEENCES BETWEEN MEN AND WOMEN.
Biological and physical differences and stereotypes that emerge from them. Perceived behavior traits of women and men. Societal view. Role of testosterone. How the hormone creates diffeences between the sexes. Biology vs. bias. Societal demands of beauty and the female body. Connection between body ideal and correct attitude or traits.
The Difference Between Men and Women
One of the most obvious differences between men and women is primary and secondary genitalia, but there are... more
3 pages | 3 sources | 14 citations | MLA citation style

Price: $36.00

GENE RESEARCH.
Scientific description of gene action & gene products. Describes research studies & methods. Bacterial clones. Phenotypes of genes; post embryonic phenotypes. Types & functions of genes. Genes responsbible for axonal guidance in the developing brain. Experiments & various techniques used by researchers. How genes mediate their effects on an organism.
Fraser et al (2000) used RNA-mediated interference (RNAi) to target approximately 90 percent of the predicted genes on C. elegans chromosome 1 by... more
9 pages | 3 sources | 2 citations | APA citation style

Price: $20.00

HERMIT CRABS.
Discusses different kinds of Hermit Crabs, their habitats and their characteristics. Usefullness in research. Series of activities of Hermit Crabs value for research into decision-making. Importance of shells and skill selection behavior. Ability of researchers to observe the assessment procedure of the crabs. Variouis experiments on Hermit Crabs in reference to animal behavior; response to stimuli.
Hermit crabs usually are found in empty gastropod shells, seeking protection from predators, desiccation, and other hermit crabs. The hermit crab... more
5 pages | 4 sources | 7 citations | APA citation style

Price: $40.00

TERATOGENS AND PREGNANCY.
Scientific discussion of external factors that might affect pregnancy and foster congenital birth defects in newborns. Prenatal development. Effect of pharmaceuticals, legal chemical substances, alcohol, narcotics & tobacco use by women on pregnancy. Effect of absence of essential nutrients such as Zinc. Cites several other causes of congenital birth defects. Variables. Problem of serious diseases of pregnant women & necessary drugs.
This research examines the phenomenon of teratogens, or factors external to the physical experience of pregnancy, during the period of gestation,... more
10 pages | 13 sources | 23 citations | APA citation style

Price: $56.00

LANGUAGE AND THE HUMAN BRAIN.
Evolvement of human speech. Examines several theories regarding co-evolution of the brain and language. Argument of linguists that language cannot evolve out of an animal communication system. Noam Chomsky's Innateness theory; natural selection and adaptations. Language as an innate part of being human. Climate theories. Darwin. Neurophysiologist research.
CO-EVOLUTION OF THE HUMAN BRAIN AND LANGUAGE: A DISCUSSION OF HOW NATURAL SELECTION MAY HAVE EFFECTED BOTH THE PHYSIOLOGICAL AND NEUROLOGICAL CHANGES... more
14 pages | 25 sources | 62 citations | MLA citation style

Price: $52.00

LEAF-CUTTING ANTS.
Scientific description of problem caused to agriculture. Ants' ability to quickly strip entire orchards of leaves. Fungal gardens of ants. Usefulness of leaf-cutting ants. Proposes an experiment to examine fungal parasites for their ability to resist streptomycin. Methodology. Expected results. Purpose of providing a safe, biological form of pest control.
Abstract
Leaf-cutting ants (Formicidae: Attini) are capable of devouring enormous amounts of vegetation - about 20 percent of the fresh-leaf... more
13 pages | 5 sources | 14 citations | APA citation style

Price: $28.00

CHROMOSOMAL SEX DETERMINATION & HUMAN Y CHROMOSONE.
Scientific discussion of genetic material of Y Chromosone. Research on human genetics. Concept of sexual selection. Male & female traits. Genes on the Y Chromosone. & their crucial role. Implications of mechanisims of chromosomal sex determination.
Review of Functional Coherence of the Human Y Chromosome

Introduction
In the current rush to map the human genome it is sometimes easy... more
7 pages | 23 sources | 27 citations | APA citation style

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