Porifera & Cnidaria - Lemon Bay High School
... Inner layer of cells Contain flagella and microfilaments ...
... Inner layer of cells Contain flagella and microfilaments ...
(null): SBI3U Kingdom Animalia Intro Handout
... 1) The body plan of the flatworm is ___________________________________________________________ (i.e. symmetry, cell organization, coelom?) 2) Flatworms are flat because _______________________________________________________________ 3) The mouth is used for both _________________ of food and ______ ...
... 1) The body plan of the flatworm is ___________________________________________________________ (i.e. symmetry, cell organization, coelom?) 2) Flatworms are flat because _______________________________________________________________ 3) The mouth is used for both _________________ of food and ______ ...
Animal Evolution
... • ~ 540-250 mya: Paleozoic = era of invertebrates, fishes, amphibians (+ seedless plants) • ~250-65 mya: Mesozoic = era of reptiles (+ Gymnosperms) • ~ 65 mya – present: Cenozoic = era of insects, mammals (+ Angiosperms) ...
... • ~ 540-250 mya: Paleozoic = era of invertebrates, fishes, amphibians (+ seedless plants) • ~250-65 mya: Mesozoic = era of reptiles (+ Gymnosperms) • ~ 65 mya – present: Cenozoic = era of insects, mammals (+ Angiosperms) ...
IX Biology Chapter Notes - Brilliant Public School Sitamarhi
... 1) Every living organism is unique and this uniqueness is the basis of the vast diversity displayed by the organisms in our world. 2) This huge diversity is the result of evolution, which has occurred over millions of years. 3) The massive biological diversity can only be studied by classification i ...
... 1) Every living organism is unique and this uniqueness is the basis of the vast diversity displayed by the organisms in our world. 2) This huge diversity is the result of evolution, which has occurred over millions of years. 3) The massive biological diversity can only be studied by classification i ...
Unit 2: Homeostasis and Immunity
... Life Function Gas Exchange Transport of nutrients Digestion Excretion Respond to Stimuli/Control ...
... Life Function Gas Exchange Transport of nutrients Digestion Excretion Respond to Stimuli/Control ...
Decent With Modification Darwin’s Theory
... reflects their origin and isolation from other species Fossil Record - The fossil record contains missing links between present species and their ancestors . . . sort of . . . maybe Comparative Anatomy - Homologous (similar) structures must have evolved from the same ancestral structure . . . except ...
... reflects their origin and isolation from other species Fossil Record - The fossil record contains missing links between present species and their ancestors . . . sort of . . . maybe Comparative Anatomy - Homologous (similar) structures must have evolved from the same ancestral structure . . . except ...
Characteristics of Life Lab Key!
... anything?________ The bristly feeling structures are called setae. What do setae do for the worm? ______________________ Answer the following questions using the book and the information you just obtained. Each life process is in bold faced print. Synthesis (How do organisms get the food/energy they ...
... anything?________ The bristly feeling structures are called setae. What do setae do for the worm? ______________________ Answer the following questions using the book and the information you just obtained. Each life process is in bold faced print. Synthesis (How do organisms get the food/energy they ...
32animalevolution
... • This protist was probably related to choanoflagellates, a group that arose about a billion years ago. – Modern choanoflagellates are tiny, stalked organisms inhabiting shallow ponds, lakes, and marine environments. ...
... • This protist was probably related to choanoflagellates, a group that arose about a billion years ago. – Modern choanoflagellates are tiny, stalked organisms inhabiting shallow ponds, lakes, and marine environments. ...
Homeostasis in Organisms
... An organisms external and internal environment are always changing Living things must constantly monitor the environment Stability is reached when organisms detect deviations (changes) in the environment and respond with a corrective action ◦ This will return the organisms balance ...
... An organisms external and internal environment are always changing Living things must constantly monitor the environment Stability is reached when organisms detect deviations (changes) in the environment and respond with a corrective action ◦ This will return the organisms balance ...
Name: Block: ___________D ate: Kingdom Animalia, Phylum
... d. Anatomy of the hydra – be able to locate and give functions of these parts: tentacles, cnidocytes, mouth, ectoderm, endoderm, gastrovascular cavity e. Two body forms: polyp and medusa f. Four (4) classes of cnidarians: Hydrozoans, Scyphozoans, Anthozoans, Cubozoans. Be able to distinguish the fou ...
... d. Anatomy of the hydra – be able to locate and give functions of these parts: tentacles, cnidocytes, mouth, ectoderm, endoderm, gastrovascular cavity e. Two body forms: polyp and medusa f. Four (4) classes of cnidarians: Hydrozoans, Scyphozoans, Anthozoans, Cubozoans. Be able to distinguish the fou ...
Phylum Cnidaria Test
... Indicate whether the sentence or statement is true or false. Mark “a” for true and “b” for false. 36. Of the 10,000 species of Cnidarians, the majority are scyphozoans. 37. All Cnidarians have parasitic algae in their mesodermal layer. 38. Cnidarians have radial symmetry and are cephalized. 39. Cora ...
... Indicate whether the sentence or statement is true or false. Mark “a” for true and “b” for false. 36. Of the 10,000 species of Cnidarians, the majority are scyphozoans. 37. All Cnidarians have parasitic algae in their mesodermal layer. 38. Cnidarians have radial symmetry and are cephalized. 39. Cora ...
Calderglen High School Biology Unit 2 Multicellular Organisms
... called Meristems. These Meristems are the only region in plants where cell division occurs (by mitosis). They have the potential to become any type of cell and they contribute to plant growth. The cells in the meristem become elongated (longer) and vacuolated (vacuoles appear) and then differentiate ...
... called Meristems. These Meristems are the only region in plants where cell division occurs (by mitosis). They have the potential to become any type of cell and they contribute to plant growth. The cells in the meristem become elongated (longer) and vacuolated (vacuoles appear) and then differentiate ...
The Digestive System
... • It pumps blood to the lungs to exchange gases and comes back to the heart • The heart then pumps blood around the rest of the body to transport gases to the cells ...
... • It pumps blood to the lungs to exchange gases and comes back to the heart • The heart then pumps blood around the rest of the body to transport gases to the cells ...
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, ...
File
... Today, we will compare anatomy of various organisms and look at how organisms have evolved over time to better adapt to their environment. ...
... Today, we will compare anatomy of various organisms and look at how organisms have evolved over time to better adapt to their environment. ...
Bio. Unit 10 Invertebrates Test
... _____ 2. The ancestors of most modern animal phyla first appeared during this period. a. Pre-cambrian b. Ediacaran c. Silurian d. Cambrian _____ 3. The only phyla that does not exhibit either bilateral or radial symmetry. a. Cnidaria b. echinoderms c. Mollusks d. Sponges _____ 4. Cells that work tog ...
... _____ 2. The ancestors of most modern animal phyla first appeared during this period. a. Pre-cambrian b. Ediacaran c. Silurian d. Cambrian _____ 3. The only phyla that does not exhibit either bilateral or radial symmetry. a. Cnidaria b. echinoderms c. Mollusks d. Sponges _____ 4. Cells that work tog ...
Open Circulatory System
... Sponges are made of only 2 layers of cells. An outside and an inside. They have a “skeleton” between the layers. Every cell has access to the water, and it takes care of nutrients and oxygen that way. ...
... Sponges are made of only 2 layers of cells. An outside and an inside. They have a “skeleton” between the layers. Every cell has access to the water, and it takes care of nutrients and oxygen that way. ...
Exercises unit 2. Digestive system
... 4c.- External digestion is not the same as extracellular digestion. External digestion takes place outside the body (remember spiders) Extracellular digestion takes place inside the body but before nutrients enter the cells. Extracellular digestion takes places either in a digestive tube or in a gas ...
... 4c.- External digestion is not the same as extracellular digestion. External digestion takes place outside the body (remember spiders) Extracellular digestion takes place inside the body but before nutrients enter the cells. Extracellular digestion takes places either in a digestive tube or in a gas ...
Chapter 34-Introduction to Animals-B
... • A body cavity is a fluid-filled SPACE that forms between the digestive tract AND the outer wall of the body during development. NOTE: TWO functions: (1) Provides a firm base against which muscles can contract. (2) Acts as a reservoir and transport medium for body chemicals. ...
... • A body cavity is a fluid-filled SPACE that forms between the digestive tract AND the outer wall of the body during development. NOTE: TWO functions: (1) Provides a firm base against which muscles can contract. (2) Acts as a reservoir and transport medium for body chemicals. ...
figure 1 - Philosophical Transactions of the Royal Society B
... Amoebozoa). As no branching protists evolved a multicellular tissue, similar ‘colonial’ choanoflagellates are probably not directly relevant to animal origins. Nonetheless, they show that various linked flagellates can still feed in the same way as when unicellular, and their frequency suggests that ...
... Amoebozoa). As no branching protists evolved a multicellular tissue, similar ‘colonial’ choanoflagellates are probably not directly relevant to animal origins. Nonetheless, they show that various linked flagellates can still feed in the same way as when unicellular, and their frequency suggests that ...
Animal Diversity File
... Three tissue layers in embryo. Almost all animals share this basic feature; the sponges and cnidarians are exceptions. Acoelomate: Flatworms don't have any kind of coelom or pseudocoelom; their bodies are basically solid. This simple body structure led biologists to conclude that the phylum Platyhel ...
... Three tissue layers in embryo. Almost all animals share this basic feature; the sponges and cnidarians are exceptions. Acoelomate: Flatworms don't have any kind of coelom or pseudocoelom; their bodies are basically solid. This simple body structure led biologists to conclude that the phylum Platyhel ...
powerpoint notes - Social Circle City Schools
... only two cell layers (no tissues, organs, or systems) Sometimes considered a colony of cells ...
... only two cell layers (no tissues, organs, or systems) Sometimes considered a colony of cells ...
printer-friendly version
... When teaching all of the L.12.D benchmarks, it is imperative to help students understand the process of science. Most objections and misconceptions about evolution are directly related to the misunderstanding of how science works. When students understand the nature of science, they will understand ...
... When teaching all of the L.12.D benchmarks, it is imperative to help students understand the process of science. Most objections and misconceptions about evolution are directly related to the misunderstanding of how science works. When students understand the nature of science, they will understand ...
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.