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AHSGE Biology Review
AHSGE Biology Review

... 129. interdependence – fact that all life depends on each other for survival; animals depend on plants for food, plants depend on animals for carbon dioxide to carry on photosynthesis 130. inversion – genetic mutation where a chromosome or part of a chromosome is broken off and then turned upside do ...
Early Evolution of Life | Principles of Biology from Nature Education
Early Evolution of Life | Principles of Biology from Nature Education

... is that the first living organisms were anaerobic archaebacteria that evolved in the hydrothermal vents near submarine volcanoes, where anaerobic bacteria still live. The first evidence of life in the fossil record comes from prokaryotes: singlecelled microorganisms containing DNA but no nuclei or m ...
Name: Date: Period: ______ Unit 8, Part 2 Notes: Theories of
Name: Date: Period: ______ Unit 8, Part 2 Notes: Theories of

... a) Vestigial structures are organs or other body parts that were useful in the ancestor of a species but are no longer useful due to changing environmental requirements. As such, they are typically much smaller than a functional organ or body part. b) For example, whales actually have a small pelvis ...
Animalia Part 1: Invertebrates
Animalia Part 1: Invertebrates

... • 2. Pseudocoelomate- A cavity exists, but it is not around the gut. • 3. Coelomate- the cavity is lined both on the inside of the body wall and around the gut. ...
Evidence of Evolution
Evidence of Evolution

... Embryology ...
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... Animal Classification: What we agree on ...
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... • A. Sponges -New data suggests they were alive 635 million years ago! – 1. Phylum Porifera: Sponges are sessile with porous bodies and choanocytes. ...
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to file

... Q: Brain circle in nematodes around: A: Pharynx Nematodes don’t have circulatory system – false Free-living and parasitic nematodes – true Nematodes are dioecious – true Nematodes undergo metamorphosis – false Some nematodes turn into cysts – true ...
NAME KS3 revision booklet Biology
NAME KS3 revision booklet Biology

... almost all of its cells. Genetic information is passed from parents to offspring during reproduction. In sexual reproduction, a male sex cell or gamete (e.g. a sperm cell) and a female gamete (e.g. an egg cell) fuse. This fusing (joining together) produces a fertilised egg cell which grows into the ...
Regents_Review_2014
Regents_Review_2014

...  Multicellular – have more than one cell; may be just a few cells, or many trillions of cells. Almost all structures in multicelled organisms are either made of or by cells. 2. Cells carry out all life processes.  Everything you do is the result of the work of your cells – walking, talking, even t ...
File - Down the Rabbit Hole
File - Down the Rabbit Hole

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Classifying Living Organisms

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Evidence of Evolution

... • The study of the development of embryos • One can compare the embryonic stages of different organisms to look for similar patterns and structures • Similarities most likely derive from an ancestor that the species have in common ...
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EOC Biology Prep Reporting Category 3 Biological Evolution and

... Some questions (c) 2012 by Region 10 Educational Service Center. ...
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Kingdoms and Domains

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Body Symmetry - Cloudfront.net
Body Symmetry - Cloudfront.net

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... including traits that affect their ability to find food, avoid predators, and attract mates. 2. Some inherited traits (e.g. bacterial resistance to antibiotics, skin pigmentation in some organisms) may give individuals of a species an advantage in surviving and reproducing in their environment compa ...
Section 26.2 Summary – pages 698-705
Section 26.2 Summary – pages 698-705

... Sponges passively filter food particles from the water when the particles flow through the sponge. Cnidarians actively seek food with tentacles that capture or paralyze the prey and take it to the cnidarian’s mouth for ingestion. ...
Conor Porifera Quiz
Conor Porifera Quiz

... 1. How many body segments does an insect have? a. 1 b. 3 c. 6 d. 11 2. What is complete metamorphosis? a. The growth of insects. b. The complete transformation of body form of insects. c. The manufacturing of silk and shellac. d. The total number of appendages an insect has. 3. How do insects grow i ...
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... • Cnidarians are carnivores with hydras and corals consuming plankton and some of the sea anenomes consuming small fishes • They use they tentacles to capture prey and direct it toward the mouth so that it can be digested in the gastrovascular cavity via secretions from gland cells (extracellular di ...
Biology Review Notes Summary
Biology Review Notes Summary

... o Movement of particles through a cell membrane by means of a transport protein. o Down the concentration gradient o Does NOT require energy. Osmosis  Movement of water  Water makes up about 70% of the cell and is required for transport of food, nutrients, and waste throughout the body.  Water mo ...
Gateway Biology Review- Answer Key Characteristics of Living
Gateway Biology Review- Answer Key Characteristics of Living

... o Movement of particles through a cell membrane by means of a transport protein. o Down the concentration gradient o Does NOT require energy. Osmosis  Movement of water  Water makes up about 70% of the cell and is required for transport of food, nutrients, and waste throughout the body.  Water mo ...
GHSGT Biology Review
GHSGT Biology Review

... o Movement of particles through a cell membrane by means of a transport protein. o Down the concentration gradient o Does NOT require energy. Osmosis  Movement of water  Water makes up about 70% of the cell and is required for transport of food, nutrients, and waste throughout the body.  Water mo ...
EOC Review power point (1)
EOC Review power point (1)

... common ancestor – Natural Selection • All organisms produce more offspring than can survive. • All offspring are genetically varied (may not always be obvious based on phenotype) • Variations in genes enable some offspring to outcompete others • Those with negative traits die, taking those to the gr ...
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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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