• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Teacher`s Guide - American Chemical Society
Teacher`s Guide - American Chemical Society

... The term probiotic refers to “…live strains of bacteria similar to the ones that live naturally in the human gut.” The microbiome is the name for all the bacteria living inside our body. 2. What are some of the benefits that some think may be provided to our bodies by some of our gut bacteria? Diffe ...
Adaptive changes in harvested populations: plasticity and evolution
Adaptive changes in harvested populations: plasticity and evolution

... Figure 3. Evolution of maturation reaction norms under state-dependent harvesting. In this case, either juveniles or adults are harvested. (a)–(c) present the ES reaction norms under increasing levels of initial harvest mortality on adults for the three harvest mortality types ((a) negatively densit ...
q 2 - McGraw Hill Higher Education
q 2 - McGraw Hill Higher Education

... Founder effects – occur when a few individuals separate from a larger populations and establish a new population • Founder allele frequencies can be different from original population Population bottlenecks – large proportion of individuals die (e.g. from environmental disturbances) • Survivors are ...
Unit 1 Exam
Unit 1 Exam

... 40. A series of muscle contractions that moves food along a passage in the digestive system such as the esophagus is called ____________________. 41. The actual places in the body where the exchange of gases between the blood and the air takes place are the____________________. Application 42. When ...
Get cached PDF
Get cached PDF

... mitochondrial codon usage (Castresana et al., 1998) suggest that, contrary to previous morphological analyses (e.g. Peterson, 1995), echinoderms and hemichordates are each other’s closest relative (i.e., they are sister taxa). Both enteropneusts and echinoderms undergo what we have termed ‘maximal i ...
Homoplasy, homology, and the perceived special
Homoplasy, homology, and the perceived special

... phylogenetic reconstruction has often failed to include behavioral traits. We then discuss, from a theoretical perspective, what reasons there aredif anydfor assuming that behavioral traits should be more prone to homoplasy than other types of traits. In doing so, we review several empirical studies ...
Mallet (2012) "The struggle..."
Mallet (2012) "The struggle..."

... in evolution? These questions may seem somewhat trivial to a mathematical biologist, but both have been subject to extensive discussion over the last century or so. Related debates were about ‘r-’ versus ‘K-selection’, and its relevance for life-history strategies in what is broadly considered part ...
Introduction
Introduction

... The techniques and technology that is discussed in this course can be viewed as:  An approach to computational intelligence and for soft computing  A search / optimization paradigm  As an approach for machine learning  As a method to simulate biological systems  As a subfield of artificial life ...
Coyne et al 1997 Evolution 51:643
Coyne et al 1997 Evolution 51:643

... selective change of frequency at any locus is limited by the amount of reproductive excess . . . the so-called cost of evolution (Wright 1977, pp. 561-562). Wright claimed that this cost was reduced by the process of interdeme selection (with Wright, we use the term "interdeme selection" to denote a ...
Biology - Tutor
Biology - Tutor

... organisms into three domains (domain Archaea, domain Bacteria, and domain Eukarya). Domain Eukarya is further categorized into four kingdoms. Here’s an explanation of each: 1. Domain Archaea is made up of prokaryotic, unicellular organisms that live in extreme habitats, such as deep ocean steam vent ...
Drift and “Statistically Abstractive Explanation”
Drift and “Statistically Abstractive Explanation”

... In his discussion of selection and drift, Sober is dealing with the variability of traitdistributions across possible populations (not within a population). Within the class of possible populations, there is variation in trait-distributions because these distributions are only probabilistically pred ...
The Trials of Life: Natural Selection and Random Drift*
The Trials of Life: Natural Selection and Random Drift*

... number of offspring from a huge number of gametes, there is always a considerable chance that the gametes which make it into the subsequent generation will misrepresent the structure of the population of gametes as a whole. (iii) Indiscriminate Sampling: Some processes remove individuals from popula ...
SECONDARY STAGE BIOLOGY Sindh Textbook
SECONDARY STAGE BIOLOGY Sindh Textbook

... isolated facts to reach a general idea that explains a phenomenon. For example, Robert Hooke observed, a thin slice of cork being composed of units, which he called, cells. This led to further observations and experimentations on plant and animal material, by M.J.Schleiden and T.Schwann, who propose ...
PROTISTS
PROTISTS

... Have an alternation of generations life cycle (means that part of life is spent reproducing asexually and part is spent reproducing sexually) ...
Cells, Tissues, Organs, and Systems [CATCH FIGURE PUO10A
Cells, Tissues, Organs, and Systems [CATCH FIGURE PUO10A

... larger than a speck of dust of about 0.5 mm. Some people affectionately call them “water bears” because of their short legs and slow movement. (The word tardigrade comes from Latin words that mean “slow walker.”) Other people prefer to call them “moss piglets,” because they are often found living on ...
5 The Theory of Natural Selection - The application of population
5 The Theory of Natural Selection - The application of population

... random mating from any initial genotype frequencies. Imagine, for example, two populations with the same gene frequency but different genotype frequencies. One population has 750 AA, 0 Aa, and 250 aa; the other has 500 AA, 500 Aa, and 0 aa. p = 0.75 and q = 0.25 in both. After one generation of rand ...
Please address all correspondence to senior author
Please address all correspondence to senior author

... interpretation makes more sense on its own terms. In addition, once it is conceded that drift is to be interpreted statistically, only the statistical conception of natural selection can accommodate the presumed relation between selection and drift. We end with some general considerations concerning ...
Grade 8 Science Package - Sunrise School Division
Grade 8 Science Package - Sunrise School Division

... compare and contrast fresh and salt water, describe factors that affect ocean currents, and recognize the impact of large bodies of water and ocean currents on regional climates. Features of the North American drainage system are identified, and factors that influence erosion and deposition in strea ...
Parallel trait adaptation across opposing thermal environments in
Parallel trait adaptation across opposing thermal environments in

... 1. Prior to the phenotypic assays, all populations were subjected to two generations in a CGE that consequently standardized both the environmental and trans-generational effects. Populations in the CGE were maintained under the standard culture conditions used in the experimental environments with ...
FORMATION OF THE SCAPULAR PART OF THE PECTORAL
FORMATION OF THE SCAPULAR PART OF THE PECTORAL

... third of the second myomere. It consists of 2 – 3 cells. A part of the former lower-scapular cartilage, from the glenoid cavity to the point of its bending, is covered by perichondrium. This part corresponds to the prospective scapula. The m. interscapularis appears internally to the lower-scapular ...
Comparing Invertebrates
Comparing Invertebrates

... Some insects and arachnids have Malpighian tubules, saclike organs that convert ammonia into uric acid. ...
natural selection and heredity
natural selection and heredity

... an hypothesis as to the factors controlling evolutionary change. He maintained that living matter had an inherent capacity to alter gradually over many generations from a simple structure or organisation to a more complex and perfect one. Over and above this, he noted that organs which are much used ...
Document
Document

... • Most cells are too small to be seen without a microscope. • A Few Large Cells The yolk of a chicken egg is one big cell. It can be large because it does not need to take in nutrients. • Many Small Cells Most cells are small because food and waste must pass through the cell surface. ...
Phenotypic plasticity in evolutionary rescue experiments
Phenotypic plasticity in evolutionary rescue experiments

... likely to be realistic for all systems, and should all be violated to some extent for many organisms. Instead, they provide a first approximation of an idealized biological reality, providing a theoretical scaffold that can then be modified to generate predictions tailored to more complex situations ...
WHAT GOOD IS GENOMIC IMPRINTING: THE FUNCTION OF
WHAT GOOD IS GENOMIC IMPRINTING: THE FUNCTION OF

... evolved as a mechanism of sex-specific expression11. That is, both sexes possess maternally derived alleles at Xlinked loci, but only females possess paternally derived alleles; therefore, imprinted expression at X-linked loci can result in differences of expression between the sexes. Here, we focus ...
< 1 2 3 4 5 6 7 8 ... 139 >

Microbial cooperation

Microorganisms engage in a wide variety of social interactions, including cooperation. A cooperative behavior is one that benefits an individual (the recipient) other than the one performing the behavior (the actor). This article outlines the various forms of cooperative interactions (mutualism and altruism) seen in microbial systems, as well as the benefits that might have driven the evolution of these complex behaviors.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report