Cladistics - Integrative Biology
... • We traditionally put the trait before the node defining the most recent common ancestor of the taxa under consideration. We assume there are fossil forms we have not found yet that fall within this monophyletic grouping and these may predate the taxa under consideration. • We use the parsimony pri ...
... • We traditionally put the trait before the node defining the most recent common ancestor of the taxa under consideration. We assume there are fossil forms we have not found yet that fall within this monophyletic grouping and these may predate the taxa under consideration. • We use the parsimony pri ...
Glossary
... combined contraceptive pill a hormonal method of contraception, taken orally, which contains synthetic forms of oestrogen and progesterone communicable disease infectious condition caused by a virus, protist, bacteria or fungi; e.g. measles, HIV community all the plants and animals living in an ecos ...
... combined contraceptive pill a hormonal method of contraception, taken orally, which contains synthetic forms of oestrogen and progesterone communicable disease infectious condition caused by a virus, protist, bacteria or fungi; e.g. measles, HIV community all the plants and animals living in an ecos ...
2.4 Exchanging gases – Questions and answers Q1. Bk Ch2 S2.4
... Stomates provide the passage through which oxygen and carbon dioxide diffuse into and out of leaves and stems. Water vapour also evaporates from plant surfaces through the stomates. The opening and closing of stomates is regulated by the surrounding guard cells. When the concentration of potassium i ...
... Stomates provide the passage through which oxygen and carbon dioxide diffuse into and out of leaves and stems. Water vapour also evaporates from plant surfaces through the stomates. The opening and closing of stomates is regulated by the surrounding guard cells. When the concentration of potassium i ...
Final-Vocab-List-551.rtf - Christopher X J. Jensen
... Transposable Element (transposon): A mobile DNA sequence that can move from one site in a chromosome to another, or between different chromosomes. Linkage Disequilibrium: A condition where two genes are found together in a population at a greater frequency than that predicted simply by the product o ...
... Transposable Element (transposon): A mobile DNA sequence that can move from one site in a chromosome to another, or between different chromosomes. Linkage Disequilibrium: A condition where two genes are found together in a population at a greater frequency than that predicted simply by the product o ...
chapter 34 - Randolph Field ISD
... Though feeble swimmers, their swimming mechanism resembles that of fishes through the coordinated contraction of serial muscle blocks. ° Contraction of chevron-shaped muscles flexes the notochord and produces lateral undulations that thrust the body forward. ° The muscle segments develop from blocks ...
... Though feeble swimmers, their swimming mechanism resembles that of fishes through the coordinated contraction of serial muscle blocks. ° Contraction of chevron-shaped muscles flexes the notochord and produces lateral undulations that thrust the body forward. ° The muscle segments develop from blocks ...
174 kb
... Standard 4: Key Idea 1: Performance Indicator 1.1: Compare and contrast the parts of plants, animals, and one-celled organisms. Essential Knowledge/Skills (Major Understandings) 1.1a Living things are composed of cells. Cells provide the structure and carry on the major functions to sustain life. C ...
... Standard 4: Key Idea 1: Performance Indicator 1.1: Compare and contrast the parts of plants, animals, and one-celled organisms. Essential Knowledge/Skills (Major Understandings) 1.1a Living things are composed of cells. Cells provide the structure and carry on the major functions to sustain life. C ...
Fossils provide evidence of the change in organisms over time.
... Iridium is rare on Earth, but common on meteorites, suggesting a massive meteorite struck the Earth about 65 million years ago. ...
... Iridium is rare on Earth, but common on meteorites, suggesting a massive meteorite struck the Earth about 65 million years ago. ...
9278432 Living Envir. Ju03
... mother while the other twin received genes only from the father (3) environments in which they were raised were different enough to affect the expression of their genes (4) environments in which they were raised were different enough to change the genetic makeup of both individuals ...
... mother while the other twin received genes only from the father (3) environments in which they were raised were different enough to affect the expression of their genes (4) environments in which they were raised were different enough to change the genetic makeup of both individuals ...
Biology Review
... bacteria in the mouth, a Swedish study suggests. The work challenges earlier suggestions that a diet rich in nitrates could pose a health risk. Joel Petersson was awarded his PhD by the University of Uppsala on May 9 for the study, which shows that rats fed on a nitrate-rich diet had a thicker layer ...
... bacteria in the mouth, a Swedish study suggests. The work challenges earlier suggestions that a diet rich in nitrates could pose a health risk. Joel Petersson was awarded his PhD by the University of Uppsala on May 9 for the study, which shows that rats fed on a nitrate-rich diet had a thicker layer ...
Section 1 - Red Hook Central Schools
... constantly changing. These changes threaten the stability of an organism’s internal environment. ...
... constantly changing. These changes threaten the stability of an organism’s internal environment. ...
Unit 4 Part 2 Outline Animal Diversity
... in trees). Primate limbs are mobile, and the hands and feet both have five digits each. The evolutionary trend among primates is toward a larger and more complex brain. 31.4 Human Evolution All primates share one common ancestor and the other types of primates diverged from the human line of descent ...
... in trees). Primate limbs are mobile, and the hands and feet both have five digits each. The evolutionary trend among primates is toward a larger and more complex brain. 31.4 Human Evolution All primates share one common ancestor and the other types of primates diverged from the human line of descent ...
Unit 11 Animal Evolution Chp 32 Intro To Animal
... Some Cambrian fossils in the Burgess Shale in British Columbia and other sites in Greenland and China are rather bizarre-looking when compared to typical marine animals today. ...
... Some Cambrian fossils in the Burgess Shale in British Columbia and other sites in Greenland and China are rather bizarre-looking when compared to typical marine animals today. ...
Unit 12 Introduction to Animal Evolution Notes
... Some Cambrian fossils in the Burgess Shale in British Columbia and other sites in Greenland and China are rather bizarre-looking when compared to typical marine animals today. ...
... Some Cambrian fossils in the Burgess Shale in British Columbia and other sites in Greenland and China are rather bizarre-looking when compared to typical marine animals today. ...
Tempo and Mode - Integrative Biology
... environmental context, but performs an additional function when placed in some new environment. The term is applied when a large change in function is accomplished with little change of structure. It is not called "preadaptation" any longer, because natural selection cannot look ahead and evolve cha ...
... environmental context, but performs an additional function when placed in some new environment. The term is applied when a large change in function is accomplished with little change of structure. It is not called "preadaptation" any longer, because natural selection cannot look ahead and evolve cha ...
File - The Building Blocks For Learning
... The diagram above shows how both energy and inorganic nutrients flow through the ecosystem. We need to define some terminology first. Energy "flows" through the ecosystem in the form of carbon-carbon bonds. When respiration occurs, the carbon-carbon bonds are broken and the carbon is combined with o ...
... The diagram above shows how both energy and inorganic nutrients flow through the ecosystem. We need to define some terminology first. Energy "flows" through the ecosystem in the form of carbon-carbon bonds. When respiration occurs, the carbon-carbon bonds are broken and the carbon is combined with o ...
plate tectonics - mfischerscience
... animals were found far apart. • This is because animals living on joined land masses died, and their fossils spread apart over time. • These animals could NOT have swam such long distances. • Ex. Kannemeyerid, Labyrinthodont, & Glossopteris ...
... animals were found far apart. • This is because animals living on joined land masses died, and their fossils spread apart over time. • These animals could NOT have swam such long distances. • Ex. Kannemeyerid, Labyrinthodont, & Glossopteris ...
Study Guide Answers Change over Time 3/18
... 31. What is Darwin’s Theory of Evolution? Natural selection is Darwin’s most famous theory; it states that evolutionary change comes through the production of variation in each generation and differential survival of individuals with different combinations of these variable characters. Individuals w ...
... 31. What is Darwin’s Theory of Evolution? Natural selection is Darwin’s most famous theory; it states that evolutionary change comes through the production of variation in each generation and differential survival of individuals with different combinations of these variable characters. Individuals w ...
Ch 34
... 2) gas exchange via the lungs 3) Dioecious with sexual reproduction and internal fertilization a) most are oviparous and produce an amniotic egg b) some are viviparous and have a form of a placenta 4) Ectotherms = use behavior to absorb solar energy and regulate its body temp(body heat from external ...
... 2) gas exchange via the lungs 3) Dioecious with sexual reproduction and internal fertilization a) most are oviparous and produce an amniotic egg b) some are viviparous and have a form of a placenta 4) Ectotherms = use behavior to absorb solar energy and regulate its body temp(body heat from external ...
Reading Guide 13: Ecosystems I
... 8. Describe the climate of the eight major terrestrial biomes and what organisms (plants and/or animals) you might expect to find there based only on the pictures provided. a) ...
... 8. Describe the climate of the eight major terrestrial biomes and what organisms (plants and/or animals) you might expect to find there based only on the pictures provided. a) ...
SCIENCE LABORATORY 4th. Grade Teacher Raymundo Delgado
... food. Plants are able to make their own food by photosynthesis. They use sunlight to turn simple molecules like carbon dioxide and water into more complex carbohydrate molecules. Animals are unable to make their own food so rely on other plants and other animals for their nutrition. Animals take in ...
... food. Plants are able to make their own food by photosynthesis. They use sunlight to turn simple molecules like carbon dioxide and water into more complex carbohydrate molecules. Animals are unable to make their own food so rely on other plants and other animals for their nutrition. Animals take in ...
here
... fills the body cavity and is composed of water, salts, organic molecules, and immune cells called hemocytes. ...
... fills the body cavity and is composed of water, salts, organic molecules, and immune cells called hemocytes. ...
Sexual Reproduction
... animals have little coordination among their nerve cells, complex animals have nerve cords and a brain with associated sensory structures. •Support While simple animals have a hydrostatic skeleton, complex animals have either an external skeleton, called an exoskeleton, or internal skeleton, called ...
... animals have little coordination among their nerve cells, complex animals have nerve cords and a brain with associated sensory structures. •Support While simple animals have a hydrostatic skeleton, complex animals have either an external skeleton, called an exoskeleton, or internal skeleton, called ...
plant kingdom
... Living organisms are found almost everywhere on earth. They vary widely with respect to size, shape, behavior and other features. It is impossible for anyone to study this immense number of living organism individually. To deal with the great variety of life forms, it is necessary to have some s ...
... Living organisms are found almost everywhere on earth. They vary widely with respect to size, shape, behavior and other features. It is impossible for anyone to study this immense number of living organism individually. To deal with the great variety of life forms, it is necessary to have some s ...
unit_5 - Homework Market
... The commonalities between 5, 6, and 7 are that they all are closed with 4-chambered heart while sample 4 is closed with a 3-chambered heart. 4. What is common in the respiration system of organisms from samples 2 and 4? Both of these samples process diffusion through the skin with one exception, ...
... The commonalities between 5, 6, and 7 are that they all are closed with 4-chambered heart while sample 4 is closed with a 3-chambered heart. 4. What is common in the respiration system of organisms from samples 2 and 4? Both of these samples process diffusion through the skin with one exception, ...
Evolutionary history of life
The evolutionary history of life on Earth traces the processes by which living and fossil organisms have evolved since life appeared on the planet, until the present day. Earth formed about 4.5 Ga (billion years ago) and life appeared on its surface within 1 billion years. The similarities between all present-day organisms indicate the presence of a common ancestor from which all known species have diverged through the process of evolution. More than 99 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth's current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described.