Sponges, Cnidarians, and Worms
... animal into two halves that are mirror images. Radial Symmetry —many lines that pass through a central point: like spokes on a wheel. Asymmetrical —no symmetry ...
... animal into two halves that are mirror images. Radial Symmetry —many lines that pass through a central point: like spokes on a wheel. Asymmetrical —no symmetry ...
Chapter 31
... ■ Within major groups of animals, evolutionary diversification was based on innovative ways of feeding and moving. Most animals get nutrients by eating other organisms, and most animals move under their own power at some point in their life cycle. ...
... ■ Within major groups of animals, evolutionary diversification was based on innovative ways of feeding and moving. Most animals get nutrients by eating other organisms, and most animals move under their own power at some point in their life cycle. ...
doc - Peace Corps Tanzania
... Nucleus - Is a spherical or oval body which is seen when cells are stained. It is composed of a fluid called nucleoplasm and is surrounded by a membrane called the nucleo-membrane. The nucleus controls the life processes of a of a cell such as growth, respiration and synthesis of materials. The nucl ...
... Nucleus - Is a spherical or oval body which is seen when cells are stained. It is composed of a fluid called nucleoplasm and is surrounded by a membrane called the nucleo-membrane. The nucleus controls the life processes of a of a cell such as growth, respiration and synthesis of materials. The nucl ...
Track 3
... a. Suggest why a small multicellular organism like the organism shown above does not need a transport system. This organism is about 1 cm long and is often found in ponds. ___________________________________________________________________________ ____________________________________________________ ...
... a. Suggest why a small multicellular organism like the organism shown above does not need a transport system. This organism is about 1 cm long and is often found in ponds. ___________________________________________________________________________ ____________________________________________________ ...
Essentials of Biology Sylvia S. Mader
... Sponges: Multicellularity • Sponges are aquatic, multicellular, radiallysymmetric, filter-feeding organisms. ...
... Sponges: Multicellularity • Sponges are aquatic, multicellular, radiallysymmetric, filter-feeding organisms. ...
WORMS!!!!!
... Proboscis • A long, fleshy tube used to entangle prey • Everted from a cavity above the mouth like a finger in a glove ...
... Proboscis • A long, fleshy tube used to entangle prey • Everted from a cavity above the mouth like a finger in a glove ...
IES AZ-ZAIT - Junta de Andalucía
... 4. Mark which of the following sentences are TRUE (T) or FALSE (F): a. Stars are very big masses of gases that emit light. b. Galaxies are made of stars, gas and dust. c. The colour of stars depends on their distance to the Earth. d. Planets and stars produce their own light. e. The Sun is a medium- ...
... 4. Mark which of the following sentences are TRUE (T) or FALSE (F): a. Stars are very big masses of gases that emit light. b. Galaxies are made of stars, gas and dust. c. The colour of stars depends on their distance to the Earth. d. Planets and stars produce their own light. e. The Sun is a medium- ...
Variety of Life
... to describe the observable phenomena that distinguish living matter from non-living matter. These are 1. Nutrition : all living organisms need food, which is assimilated and used as a source of energy. 2. Respiration : all life processes require energy. The energy is released during breakdown of cer ...
... to describe the observable phenomena that distinguish living matter from non-living matter. These are 1. Nutrition : all living organisms need food, which is assimilated and used as a source of energy. 2. Respiration : all life processes require energy. The energy is released during breakdown of cer ...
North Carolina Test of Biology
... State Board of Education Department of Public Instruction Division of Accountability Services/North Carolina Testing Program ...
... State Board of Education Department of Public Instruction Division of Accountability Services/North Carolina Testing Program ...
مملكة البدائيات (Kingdom Monera)
... Cyanobacteria (blue-green algae). Some texts consider these groups as subkingdoms and others consider them as divisions of Kingdom Monera. Bacteria are unicellular organisms which lack chlorophyll. They possess certain biological properties and they multiply by binary fission. Members of Cyanobacter ...
... Cyanobacteria (blue-green algae). Some texts consider these groups as subkingdoms and others consider them as divisions of Kingdom Monera. Bacteria are unicellular organisms which lack chlorophyll. They possess certain biological properties and they multiply by binary fission. Members of Cyanobacter ...
5 7.2 A typical cell of any organ- ism contains genetic instructions
... of the boat you go. As you descend through the water, you see many kinds of fishes. When you get to the bottom, you notice other organisms, too. Some are as strange as creatures from a science fiction movie. A few of these unusual organisms may be invertebrate animals called sponges. Sponges don't l ...
... of the boat you go. As you descend through the water, you see many kinds of fishes. When you get to the bottom, you notice other organisms, too. Some are as strange as creatures from a science fiction movie. A few of these unusual organisms may be invertebrate animals called sponges. Sponges don't l ...
Standard 5 - Pompton Lakes School District
... making sense of the complexity, diversity, and interconnectedness of life on Earth. Order in of Grade 6 natural systems arises in accordance with rules that govern the physical world, and the order of natural systems can be modeled and predicted through the use of mathematics. Strand B. Matter and E ...
... making sense of the complexity, diversity, and interconnectedness of life on Earth. Order in of Grade 6 natural systems arises in accordance with rules that govern the physical world, and the order of natural systems can be modeled and predicted through the use of mathematics. Strand B. Matter and E ...
General Characteristics
... includes all the sub-groups that are not exclusively parasitic. There are about 4,500 species, which range from 1 mm long to large freshwater forms more than 500 mm (20 in) long.. Platyhelminthes are bilaterally symmetrical animals, in other words their left and right sides are mirror images of each ...
... includes all the sub-groups that are not exclusively parasitic. There are about 4,500 species, which range from 1 mm long to large freshwater forms more than 500 mm (20 in) long.. Platyhelminthes are bilaterally symmetrical animals, in other words their left and right sides are mirror images of each ...
Chapter 17: Invertebrate Animals
... are more complex than flatworms because their digestive tract has two openings. Food enters through the mouth, is digested in a digestive tract, and wastes exit through the anus. Roundworms are a diverse group. Some roundworms are decomposers, others are predators, and some, like the heartworm, are ...
... are more complex than flatworms because their digestive tract has two openings. Food enters through the mouth, is digested in a digestive tract, and wastes exit through the anus. Roundworms are a diverse group. Some roundworms are decomposers, others are predators, and some, like the heartworm, are ...
Animal Development and Phylogeny Notes
... Major Invertebrate Phyla Sponges were formerly called “Porifera” and are organisms that have the following characteristics: Suspension feeding (capturing food from the water as it travels through the body Pores on the outer surface pull in water and send it out through the spongocoel and it’s ...
... Major Invertebrate Phyla Sponges were formerly called “Porifera” and are organisms that have the following characteristics: Suspension feeding (capturing food from the water as it travels through the body Pores on the outer surface pull in water and send it out through the spongocoel and it’s ...
Worksheet 1: Foundations—crossword
... Stem cell: an undifferentiated cell; these cells have the capacity to become specialised. ...
... Stem cell: an undifferentiated cell; these cells have the capacity to become specialised. ...
File
... includes all the sub-groups that are not exclusively parasitic. There are about 4,500 species, which range from 1 mm long to large freshwater forms more than 500 mm (20 in) long.. Platyhelminthes are bilaterally symmetrical animals, in other words their left and right sides are mirror images of each ...
... includes all the sub-groups that are not exclusively parasitic. There are about 4,500 species, which range from 1 mm long to large freshwater forms more than 500 mm (20 in) long.. Platyhelminthes are bilaterally symmetrical animals, in other words their left and right sides are mirror images of each ...
Life Science
... Adaptations ● Fossils are evidence that some types of organisms (e.g., dinosaurs, trilobites, mammoths, giant tree ferns) that once lived in the past, and have since become extinct, have similarities with and differences from organisms living today (DOK 2) ● Relate examples of adaptations (specializ ...
... Adaptations ● Fossils are evidence that some types of organisms (e.g., dinosaurs, trilobites, mammoths, giant tree ferns) that once lived in the past, and have since become extinct, have similarities with and differences from organisms living today (DOK 2) ● Relate examples of adaptations (specializ ...
Life Science HS - Standards Aligned System
... Use a model to describe the role of cellular division and differentiation to produce and maintain complex organisms composed of organ systems and tissue subsystems that work together to meet the needs of the entire organism. Use a model to explain the role of cellular division and the mechanisms in ...
... Use a model to describe the role of cellular division and differentiation to produce and maintain complex organisms composed of organ systems and tissue subsystems that work together to meet the needs of the entire organism. Use a model to explain the role of cellular division and the mechanisms in ...
AP Biology Survey of the Kingdoms CHAPTER 27 – Bacteria and
... 7. Gram stains are often performed in medical labs, generally what are the differences in the effects Gram positive and Gram negative bacteria have on the human body? ___________________________________________ _______________________________________________________________________________________ ...
... 7. Gram stains are often performed in medical labs, generally what are the differences in the effects Gram positive and Gram negative bacteria have on the human body? ___________________________________________ _______________________________________________________________________________________ ...
Human Body Review
... determines what the muscle does. What does this most likely mean about the structure of the muscles? A. ...
... determines what the muscle does. What does this most likely mean about the structure of the muscles? A. ...
Life Science - 4J Blog Server
... organisms. Bacteria are the simplest organisms that carry out all basic life activities. ...
... organisms. Bacteria are the simplest organisms that carry out all basic life activities. ...
College Biology - Problem Drill 15: The Evolution of Animal Diversity
... sophistication and resembled acoelomates. All surviving animals today can be traced back to their ancestors to this time period. Development of hard body parts, such as teeth, resulted in a more sophisticated diet for both predator and prey. Hard body parts were easily identified from fossil records ...
... sophistication and resembled acoelomates. All surviving animals today can be traced back to their ancestors to this time period. Development of hard body parts, such as teeth, resulted in a more sophisticated diet for both predator and prey. Hard body parts were easily identified from fossil records ...
AP Biology - Problem Drill 16: The Evolution of Animal Diversity
... sophistication and resembled acoelomates. All surviving animals today can be traced back to their ancestors to this time period. Development of hard body parts, such as teeth, resulted in a more sophisticated diet for both predator and prey. Hard body parts were easily identified from fossil records ...
... sophistication and resembled acoelomates. All surviving animals today can be traced back to their ancestors to this time period. Development of hard body parts, such as teeth, resulted in a more sophisticated diet for both predator and prey. Hard body parts were easily identified from fossil records ...
Experimental evolution of multicellularity
... The evolution of multicellularity is a two-step process. First, clusters of cells must evolve from singlecelled ancestors. In nature, this may be due to predation (predators can eat single cells, but not clusters), or benefits clusters gain over isolated cells (e.g., UV resistance, metabolic efficie ...
... The evolution of multicellularity is a two-step process. First, clusters of cells must evolve from singlecelled ancestors. In nature, this may be due to predation (predators can eat single cells, but not clusters), or benefits clusters gain over isolated cells (e.g., UV resistance, metabolic efficie ...
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.