Summary
... Paleontologists have identified microscopic fossils from 570 to 610 million years ago. They identified trace fossils from the same time period. Trace fossils are tracks and burrows made by softbodied animals. Fossils of some primitive animals were discovered in the Ediacara Hills of Australia. The E ...
... Paleontologists have identified microscopic fossils from 570 to 610 million years ago. They identified trace fossils from the same time period. Trace fossils are tracks and burrows made by softbodied animals. Fossils of some primitive animals were discovered in the Ediacara Hills of Australia. The E ...
PORIFERA/CNIDARIA LABORATORY Phylum Porifera Class
... thicker than that of asconoid sponges and that the syconoid spongocoel is not lined by choanocytes as is the asconoid spongocoel. Example Grantia or Scypha (slides only) Syconoid sponges are more complex than asconoid sponges. Syconoid sponges look like large asconoid sponges, having a tubular shape ...
... thicker than that of asconoid sponges and that the syconoid spongocoel is not lined by choanocytes as is the asconoid spongocoel. Example Grantia or Scypha (slides only) Syconoid sponges are more complex than asconoid sponges. Syconoid sponges look like large asconoid sponges, having a tubular shape ...
SI 10/19/08 Exam 2 Review 1. Which of the following phylogenetic
... 1. Which of the following phylogenetic groups within the animal kingdom encompasses all the others in the list? A. rotifera B. deuterostomes C. bilateria D. arthropoda E. protostomes 2. Octopi are most closely related to which of the following organisms? A. clams B. jellyfish C. starfish D. earthwor ...
... 1. Which of the following phylogenetic groups within the animal kingdom encompasses all the others in the list? A. rotifera B. deuterostomes C. bilateria D. arthropoda E. protostomes 2. Octopi are most closely related to which of the following organisms? A. clams B. jellyfish C. starfish D. earthwor ...
Lectures 1-7 (word format)
... • as mentioned last time, the lack of migration among islands means that changes that occur in one population via selection, drift or whatever means, cannot be passed on to another population • when this occurs the populations diverge • as time passes and more differences accumulate, speciation may ...
... • as mentioned last time, the lack of migration among islands means that changes that occur in one population via selection, drift or whatever means, cannot be passed on to another population • when this occurs the populations diverge • as time passes and more differences accumulate, speciation may ...
EEOB 405.01 – Exam 1 Cathy Becker Question 1 Phylogeny of
... Figure 1 shows homologies, or similarities based on descent from a common ancestor (Lab Manual, Lab 1), for several selected taxa we have studied so far. Some of the taxa asked for are on the level of phyla (ex: Cnidaria, Ctenophora), some are on the level of class (ex: Trematoda, Cestoda, Turbellar ...
... Figure 1 shows homologies, or similarities based on descent from a common ancestor (Lab Manual, Lab 1), for several selected taxa we have studied so far. Some of the taxa asked for are on the level of phyla (ex: Cnidaria, Ctenophora), some are on the level of class (ex: Trematoda, Cestoda, Turbellar ...
Chapter 22 Descent with Modification: A Darwinian View of Life
... Paleontology - the study of fossils Fossils - relics or impressions of organisms from the past, mineralized in rock Sedimentary rock - formed from the sand and mud that settle to the bottom of seas, lakes and marshes (Fig 22.3) Catastrophism - speculation that each boundary between strata correspond ...
... Paleontology - the study of fossils Fossils - relics or impressions of organisms from the past, mineralized in rock Sedimentary rock - formed from the sand and mud that settle to the bottom of seas, lakes and marshes (Fig 22.3) Catastrophism - speculation that each boundary between strata correspond ...
Chapter 22 Descent with Modification: A Darwinian View of Life
... Paleontology - the study of fossils Fossils - relics or impressions of organisms from the past, mineralized in rock Sedimentary rock - formed from the sand and mud that settle to the bottom of seas, lakes and marshes (Fig 22.3) Catastrophism - speculation that each boundary between strata correspond ...
... Paleontology - the study of fossils Fossils - relics or impressions of organisms from the past, mineralized in rock Sedimentary rock - formed from the sand and mud that settle to the bottom of seas, lakes and marshes (Fig 22.3) Catastrophism - speculation that each boundary between strata correspond ...
Introduction to Classification
... On your paper list what those five kingdoms might be. For each kingdom list the defining characteristics of the group. Be sure that every living thing fits into one of your kingdoms. ...
... On your paper list what those five kingdoms might be. For each kingdom list the defining characteristics of the group. Be sure that every living thing fits into one of your kingdoms. ...
Unit 2-Investigating the Immune and Nervous System
... o __________________- all living things in an ecosystem o Population- a group of organisms of the same species that live in a community o Food Chains- the food and energy links in an ecosystem 1. Most food chains begin with sunlight 2. Producer- an organism that makes its own food 3. ______________- ...
... o __________________- all living things in an ecosystem o Population- a group of organisms of the same species that live in a community o Food Chains- the food and energy links in an ecosystem 1. Most food chains begin with sunlight 2. Producer- an organism that makes its own food 3. ______________- ...
Characteristics of organisms 08
... Fig 8.6 - Blood circulatory system and how it becomes complex from cellular level to system level ...
... Fig 8.6 - Blood circulatory system and how it becomes complex from cellular level to system level ...
File
... 1) How do scientist classify organisms? Scientist classify similar organisms in one group, and an organism that is very different from other known organisms is placed in a new. 2) Describe one advantage of having a classification system: A classification system makes it easier to communicate clearly ...
... 1) How do scientist classify organisms? Scientist classify similar organisms in one group, and an organism that is very different from other known organisms is placed in a new. 2) Describe one advantage of having a classification system: A classification system makes it easier to communicate clearly ...
Course Outline - Roper Mountain Science Center!
... A Working Muscle They come in Pairs Lab Neuron Domino Brain Booklet and Brain Hat ...
... A Working Muscle They come in Pairs Lab Neuron Domino Brain Booklet and Brain Hat ...
Answers to End-of-Chapter Questions – Brooker et al ARIS site
... 1. Discuss some of the characteristics of the phylum Mollusca. Answer: There are over 100,000 living species within the phylum Mollusca, including octopuses, clams, snails, and slugs. Although there is great variation within this phylum, all mollusks have a body plan consisting of three main parts: ...
... 1. Discuss some of the characteristics of the phylum Mollusca. Answer: There are over 100,000 living species within the phylum Mollusca, including octopuses, clams, snails, and slugs. Although there is great variation within this phylum, all mollusks have a body plan consisting of three main parts: ...
Review Guide for Body Systems and Cells Test
... Key Concept 1: Each organelle has a different and specific job that the others rely on for the total survival of the cell, like the waste removal role of the lysosome. Key Concept 2: The function of each organelle’s essential task can be compared with the functions of organisms to obtain energy, suc ...
... Key Concept 1: Each organelle has a different and specific job that the others rely on for the total survival of the cell, like the waste removal role of the lysosome. Key Concept 2: The function of each organelle’s essential task can be compared with the functions of organisms to obtain energy, suc ...
EOC Review Part 1
... Example: the sea anemone provides a home for the clown fish and the clown fish protects the sea anemone from predators Commensalism- one organism benefits and the other doesn’t care (not hurt or helped) Example: a cow walking in a field stirs up insects for the cow bird to eat Parasitism- One ...
... Example: the sea anemone provides a home for the clown fish and the clown fish protects the sea anemone from predators Commensalism- one organism benefits and the other doesn’t care (not hurt or helped) Example: a cow walking in a field stirs up insects for the cow bird to eat Parasitism- One ...
Kinds, individuals, organisms
... essential properties. Historically it is related to the pre-evolutionary stage based on the description and classification of organic types. The second rejects the notion of class and is attached to the mereological notion of individual. Organisms, as well as species (and other categories in the hie ...
... essential properties. Historically it is related to the pre-evolutionary stage based on the description and classification of organic types. The second rejects the notion of class and is attached to the mereological notion of individual. Organisms, as well as species (and other categories in the hie ...
The Big Picture: A Review of Biology
... Evolution is a change in a species over time The theory of evolution was stated by Charles Darwin and is based on natural selection Natural selection states that organisms with traits well suited to an environment are more likely to survive and produce more offspring than organisms without these fav ...
... Evolution is a change in a species over time The theory of evolution was stated by Charles Darwin and is based on natural selection Natural selection states that organisms with traits well suited to an environment are more likely to survive and produce more offspring than organisms without these fav ...
Recitation for Chapter One
... Scientists cannot fully explain a higher level of order from a critical analysis of it partsFor example: what good is the handle of a hammer without the head? Holism = disrupting a living system interferes with the meaningful explanation of its processes But, biological structural levels build upon ...
... Scientists cannot fully explain a higher level of order from a critical analysis of it partsFor example: what good is the handle of a hammer without the head? Holism = disrupting a living system interferes with the meaningful explanation of its processes But, biological structural levels build upon ...
Protists Topics in Biodiversity
... All five groups of protozoans include some sessile species but most are swimmers. Ciliates use their many tiny cilia, in controlled waves, to propel themselves through the water. Flagellates have a single posterior flagella that pushes them forward in much the same way as a motor boat uses its prope ...
... All five groups of protozoans include some sessile species but most are swimmers. Ciliates use their many tiny cilia, in controlled waves, to propel themselves through the water. Flagellates have a single posterior flagella that pushes them forward in much the same way as a motor boat uses its prope ...
Binomial Nomenclature- system of assigning 2 names to every species
... - Deuterostomes - first dent in embryonic ball becomes an anus, & cells aren‟t locked into their “path” until a little later in development, removing one cell early on would not cause problems, new organism would form (identical twins) Segmentation - having a body plan that has repeating similar par ...
... - Deuterostomes - first dent in embryonic ball becomes an anus, & cells aren‟t locked into their “path” until a little later in development, removing one cell early on would not cause problems, new organism would form (identical twins) Segmentation - having a body plan that has repeating similar par ...
The Five Kingdoms
... that produce milk for young. They lay eggs, or have pouches, or develop in the mother (live birth). ...
... that produce milk for young. They lay eggs, or have pouches, or develop in the mother (live birth). ...
25.1 Animal Origins
... • All contain • Most have a matrix in which living cells and protein fibers (collagen) exist ...
... • All contain • Most have a matrix in which living cells and protein fibers (collagen) exist ...
Evolution and the History of Life
... tar pits have great fossils. Burial by sediments reduce oxygen exposure. • Freezing also allows fossil formation – Mammoth that Japanese scientists are trying to clone from DNA extracted from frozen Mammoth fossil. ...
... tar pits have great fossils. Burial by sediments reduce oxygen exposure. • Freezing also allows fossil formation – Mammoth that Japanese scientists are trying to clone from DNA extracted from frozen Mammoth fossil. ...
The Five Kingdoms - NVHSIntroBioPiper1
... • The classification of organisms has a long history, but it keeps changing as new knowledge is generated by the research of evolutionary relationships. ...
... • The classification of organisms has a long history, but it keeps changing as new knowledge is generated by the research of evolutionary relationships. ...
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.