Next .54 billion years
... ___________________________ theory = photosynthesizing prokaryotes were absorbed by other bacteria to become the first organelles - ______________________ ...
... ___________________________ theory = photosynthesizing prokaryotes were absorbed by other bacteria to become the first organelles - ______________________ ...
15.3 Power Point
... Adaptation: any inheritable characteristic that increases an organism’s chance of survival Organisms with the best adaptations survive and reproduce more often ...
... Adaptation: any inheritable characteristic that increases an organism’s chance of survival Organisms with the best adaptations survive and reproduce more often ...
Study Guide Answer Key
... Who founded the idea of evolution by natural selection? Charles Darwin ...
... Who founded the idea of evolution by natural selection? Charles Darwin ...
Biology - Zanichelli online per la scuola
... Nutrients supply energy and materials for biochemical reactions. Some reactions break nutrient molecules into smaller units, releasing energy for work. ...
... Nutrients supply energy and materials for biochemical reactions. Some reactions break nutrient molecules into smaller units, releasing energy for work. ...
Charles Darwin
... selection. It is this name that is most closely associated with the theory of evolution. Species ...
... selection. It is this name that is most closely associated with the theory of evolution. Species ...
Sponges
... Form and Function in Sponges · No mouth, gut, organs or tissues. · Simple processes are carried out by a few specialized cells. · Body plan: Assymetrical (no front or back, left or right) · Body forms a wall around a large central cavity through which water circulates. · Choanocytes:(collar cells) ...
... Form and Function in Sponges · No mouth, gut, organs or tissues. · Simple processes are carried out by a few specialized cells. · Body plan: Assymetrical (no front or back, left or right) · Body forms a wall around a large central cavity through which water circulates. · Choanocytes:(collar cells) ...
1-3 Studying Life: Read pages 16-22 carefully
... 3. Circle the letter of each sentence that is TRUE about cells. a. A cell is the smallest unit of an organism that is considered alive. b. A multicellular organism may contain trillions of cells. c. A living thing that consists of a single cell is a multicellular organism. d. Organisms are made up o ...
... 3. Circle the letter of each sentence that is TRUE about cells. a. A cell is the smallest unit of an organism that is considered alive. b. A multicellular organism may contain trillions of cells. c. A living thing that consists of a single cell is a multicellular organism. d. Organisms are made up o ...
Sponges: Phylum Porifera
... is due to the evolution of cells working together to form larger units each dedicated to a specific function necessary for the survival of the entire animal. Metazoan cells cannot survive on their own outside of the whole organism (except in cell culture with lots of feeding and maintenance by biolo ...
... is due to the evolution of cells working together to form larger units each dedicated to a specific function necessary for the survival of the entire animal. Metazoan cells cannot survive on their own outside of the whole organism (except in cell culture with lots of feeding and maintenance by biolo ...
Concept Check 15 - Plain Local Schools
... 1. How can evolution explain the range of complexity of eyes in modern organisms? 2. Give an example of evolutionary remodeling of an existing structure to a new function. 3. Identify one possible event during an organism's embryonic development that can result in a change in body form. Concept Chec ...
... 1. How can evolution explain the range of complexity of eyes in modern organisms? 2. Give an example of evolutionary remodeling of an existing structure to a new function. 3. Identify one possible event during an organism's embryonic development that can result in a change in body form. Concept Chec ...
Chapter 28
... No symmetry No tissues / organs Cells can recognize other cells Reorganize when separated ...
... No symmetry No tissues / organs Cells can recognize other cells Reorganize when separated ...
1-3 Studying Life
... 6. Plants, some bacteria, and most algae obtain their energy directly from ___________. 7. A _______________ is a signal to which an organism responds. 8. Give 2 examples of external stimuli: _______________________________________. 9. The process by which organisms maintain constant internal condit ...
... 6. Plants, some bacteria, and most algae obtain their energy directly from ___________. 7. A _______________ is a signal to which an organism responds. 8. Give 2 examples of external stimuli: _______________________________________. 9. The process by which organisms maintain constant internal condit ...
1-3_studying_life
... 3. Circle the letter of each sentence that is TRUE about cells. a. A cell is the smallest unit of an organism that is considered alive. b. A multicellular organism may contain trillions of cells. c. A living thing that consists of a single cell is a multicellular organism. d. Organisms are made up o ...
... 3. Circle the letter of each sentence that is TRUE about cells. a. A cell is the smallest unit of an organism that is considered alive. b. A multicellular organism may contain trillions of cells. c. A living thing that consists of a single cell is a multicellular organism. d. Organisms are made up o ...
Name
... 30- ___________________________ evolution different groups evolve from one ancestor. 31- ___________________________ evolution two or more different groups evolve so that they resemble one another strongly. 32- ___________________________ radiation organisms spread into new environments and become a ...
... 30- ___________________________ evolution different groups evolve from one ancestor. 31- ___________________________ evolution two or more different groups evolve so that they resemble one another strongly. 32- ___________________________ radiation organisms spread into new environments and become a ...
Evolution Concepts
... II. Anatomical and Physiological similarities -- Homologous structures -- implies similar genes III. Embryological Evidence -- Similarities in early development -- implies similar genes ...
... II. Anatomical and Physiological similarities -- Homologous structures -- implies similar genes III. Embryological Evidence -- Similarities in early development -- implies similar genes ...
Study Guide for Changes Over Time Test
... a. Explain the role of genes and chromosomes in the process of inheriting a specific c. Recognize that selective breeding can produce plants or animals with desired traits. S7L4. Students will examine the dependence of organisms on one another and their environments. c. Recognize that changes in env ...
... a. Explain the role of genes and chromosomes in the process of inheriting a specific c. Recognize that selective breeding can produce plants or animals with desired traits. S7L4. Students will examine the dependence of organisms on one another and their environments. c. Recognize that changes in env ...
Chapter 33 Section 1 Vocabulary
... Sponges can reproduce asexually, through budding or regeneration, and sexually, through the joining of egg and sperm. Most sponges are hermaphroditic, meaning that a single animal can produce both eggs and sperm. Section 2 Cnidaria and Ctenophora Animals in the phylum Cnidaria can be either sess ...
... Sponges can reproduce asexually, through budding or regeneration, and sexually, through the joining of egg and sperm. Most sponges are hermaphroditic, meaning that a single animal can produce both eggs and sperm. Section 2 Cnidaria and Ctenophora Animals in the phylum Cnidaria can be either sess ...
Charles Darwin
... with harmful traits do not usually survive to reproduce. The production of more offspring than can possibly survive. ...
... with harmful traits do not usually survive to reproduce. The production of more offspring than can possibly survive. ...
Why is life on Earth so diverse???
... fuss about?! = “a scientific explanation of natural phenomena, based on empirical evidence” ...
... fuss about?! = “a scientific explanation of natural phenomena, based on empirical evidence” ...
Homeoboxes
... What does it mean to be an animal? -Animals get food by; 1. Ingesting - Differs from absorption (Fungus) 2. Rely on other organism for food or are heterotrophic unlike plants -Animals are multicellular unlike protists 1. Specialized cells (nervous and muscular are not found in any other multicellul ...
... What does it mean to be an animal? -Animals get food by; 1. Ingesting - Differs from absorption (Fungus) 2. Rely on other organism for food or are heterotrophic unlike plants -Animals are multicellular unlike protists 1. Specialized cells (nervous and muscular are not found in any other multicellul ...
phylum_porifera
... - when young: a tube-like, vase-shaped hollow body called a polyp. The upward facing mouth is surrounded by tentacles. Sessile. - when mature: opened umbrella shape or bell-shaped called a medusa. The downward facing mouth is surrounded by tentacles. ...
... - when young: a tube-like, vase-shaped hollow body called a polyp. The upward facing mouth is surrounded by tentacles. Sessile. - when mature: opened umbrella shape or bell-shaped called a medusa. The downward facing mouth is surrounded by tentacles. ...
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.