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Animal Diversity - Invertebrates Read: Text ch 27 Bullet Points
Animal Diversity - Invertebrates Read: Text ch 27 Bullet Points

... Or  has  segmentation  occurred  several  times  during  the  history  of  evolution? The  researchers  found  that  the  genes  controlling  segment  formation   during  embryo  development  are  almost  the  same  in  drosophila  and  in  annelid  worms. These  similarities  led  them  to  conclud ...
Cnidarians
Cnidarians

... Cnidarians reproduce both __________________ and __________________. ________________________ (produces new organism genetically identical to parent) ___________________ to form a new organism May stay ________________ to the parent organism or break off to form a new one. Cnidarians (like sponges) ...
KINGDOMS OF LIFE
KINGDOMS OF LIFE

... Classificationthe grouping of objects or information based on similarities. ...
Chapter 13
Chapter 13

... Permian Jurassic ...
living organisms
living organisms

... interact with each other. 12. What is the most obvious difference between communities? The most obvious difference between communities is the types of species they have. 13. What is the name for a place that an organism lives? Habitats are places where an organism usually lives. 14. Organism tend t ...
EVOLUTION!
EVOLUTION!

... Fossil Records fossils at various depths show different forms of life lineages of fossils of a particular group are found and quite complete Radiometric (radiation) dating of rock layers establishes a chemical connection between fossils ...
Homeostatic Mechansisms and Evolution
Homeostatic Mechansisms and Evolution

... • 2D1: All biological systems from cells to organisms to populations, communities, and ecosystems are affected by complex biotic and abiotic interactions involving exchange of matter and free energy. • 2D2: Homeostatic mechanisms reflect both common ancestry and divergence due to adaptation in diffe ...
Relationships in the Ecosystem
Relationships in the Ecosystem

... B) mutualism C) parasitism ...
Evolution
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BIOLOGY END OF COURSE TEST STUDY GUIDE
BIOLOGY END OF COURSE TEST STUDY GUIDE

... __carrying capacity_______. The gradual change of an ecosystem or environment to a different kind of environment is known as ___succession__________. When it occurs after a fire, hurricane, or other natural disaster it is known as __secondary_____, but when it occurs where there has never been any l ...
Biology and the Living World
Biology and the Living World

... The cell theory states that all living organisms are composed of cells, which grow and reproduce to form other cells (figure 1.10) (174.0K) . The gene theory states that long molecules in the cell, called DNA, encode instructions for producing cellular components. These instructions, organized into ...
evolution vocabulary
evolution vocabulary

... 5. Carbon film: a type of fossil consisting of an extremely thin coating of carbon on rock 6. Cast: a fossil that is a solid copy of an organism’s shape, formed when minerals seep into a mold 7. Catastrophism: is the theory that the Earth has been affected in the past by sudden, short-lived, violent ...
Evolution - Diversity of Life
Evolution - Diversity of Life

... A professor recommended Darwin for work as an unpaid ______________ on a voyage around the world upon the ____________________, under captain Robert Fitzroy. ...
Digestive system - holyoke
Digestive system - holyoke

... 10. Some animals are asymmetrical, what are the two types of symmetry found in other animals? ____________________________ _______________________________ Sketch: ...
Evolution
Evolution

... evolution. It states that environmental conditions determine which organisms survive and reproduce – Adaptations or special characteristics that make an organism well suited to a particular environment help certain organisms survive over others – The adaptations an organism has can give it an advant ...
Evidence of Evolution
Evidence of Evolution

... mineralized remains (bone, petrified tree, tooth, or shell) or imprint of an organism that lived long ago. ...
Amino Acid Dissimilarities for Beta Hemoglobin Protein
Amino Acid Dissimilarities for Beta Hemoglobin Protein

... • Animal fossils may form when: An animal is buried by sediment An animal is buried on the ocean floor, in swamps, in mud, or in tar pits o An animal’s tissue is replaced by harder minerals (petrification). o o ...
MT XM - ltcconline.net
MT XM - ltcconline.net

... C) Small birds anticipating the long drought and eating more to gain weight and, consequently, growing larger beaks. D) More small-beaked birds dying than the larger-beaked birds. The offspring produced in subsequent generations have a higher percentage of birds with large beaks. E) Larger birds eat ...
Habitat and Lifestyle - Calgary Christian School
Habitat and Lifestyle - Calgary Christian School

... release nutrients, which are used by other organisms ...
Life in the Ocean - Catawba County Schools
Life in the Ocean - Catawba County Schools

... open ocean. • Examples include mammals such as whales and dolphins, sea lions as well as a great variety of fish ...
Evolution
Evolution

... organisms sharing the same structure to perform similar functions from different evolutionary origins (evolved twice) ...
THE ANIMAL KINGDOM (I): NON
THE ANIMAL KINGDOM (I): NON

... Sponges are aquatic animals. They are permanently attached to rocks. The body of a sponge is shaped like a sac or be irregular (like natural sponges people use in their bathrooms) and it is covered with small pores. Sponges eat organic particles they filter from the water, for this reason they are c ...
History of Earth and Life
History of Earth and Life

... In the 1920s, Alexander Oparin and J. B. S. Haldane proposed an idea for how life may have originated on Earth. They stated - early atmosphere contained _______ _______ O2 _______________(NH3) H2 gas __________ ________ & _____________(CH 4) _____________ & __________ stated that, as the earth coole ...
Intro to Zoology
Intro to Zoology

...  Open circulatory system- blood like circulatory fluid is pumped from vessels in the body into the body cavity ( it bathes the organs) then is returned to the vessels. ...
Evolution Notes
Evolution Notes

... relative to other fossils in the rocks • Law of Superposition – successive layers of rock or soil were deposited on top of one another by wind or water ...
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Precambrian body plans



Until the late 1950’s, the Precambrian era was not believed to have hosted multicellular organisms. However, with radiometric dating techniques, it has been found that fossils initially found in the Ediacara Hills in Southern Australia date back to the late Precambrian era. These fossils are body impressions of organisms shaped like disks, fronds and some with ribbon patterns that were most likely tentacles.These are the earliest multicellular organisms in Earth’s history, despite the fact that unicellularity had been around for a long time before that. The requirements for multicellularity were embedded in the genes of some of these cells, specifically choanoflagellates. These are thought to be the precursors for all multicellular organisms. They are highly related to sponges (Porifera), which are the simplest multicellular organisms.In order to understand the transition to multicellularity during the Precambrian, it is important to look at the requirements for multicellularity—both biological and environmental.
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