Platyhelminthes
... Flatworms have a gastrovascular cavity with a single opening (a mouth) where food and waste can pass. A muscular tube called the pharynx near the mouth, is extended out of the mouth, then pumps food inside. The food is digested and is diffused into all other body tissues from the ...
... Flatworms have a gastrovascular cavity with a single opening (a mouth) where food and waste can pass. A muscular tube called the pharynx near the mouth, is extended out of the mouth, then pumps food inside. The food is digested and is diffused into all other body tissues from the ...
Asexual & Sexual Reproduction
... Budding – organism that produces a bud that breaks away to live on its own. ...
... Budding – organism that produces a bud that breaks away to live on its own. ...
REPRODUCTION: THE CONTINUITY OF LIFE
... among molds or fungi. Regeneration Animals can also reproduce by regeneration. Did you know that when a hydra is cut into several pieces, a process known as fragmentation, each piece can grow into another hydra? In certain types of starfish, an arm that breaks off from the body can develop into a ne ...
... among molds or fungi. Regeneration Animals can also reproduce by regeneration. Did you know that when a hydra is cut into several pieces, a process known as fragmentation, each piece can grow into another hydra? In certain types of starfish, an arm that breaks off from the body can develop into a ne ...
Asexual & Sexual Reproduction
... Budding – organism that produces a bud that breaks away to live on its own. ...
... Budding – organism that produces a bud that breaks away to live on its own. ...
www.bio-protocol.org/e2074 Electro
... events in angiosperms, such as egg activation, zygote development and early embryogenesis, since the female gametophytes of plants are deeply embedded within ovaries. In this protocol, procedures for isolation of rice gametes, electro-fusion of gametes, and culture of the produced zygotes are descri ...
... events in angiosperms, such as egg activation, zygote development and early embryogenesis, since the female gametophytes of plants are deeply embedded within ovaries. In this protocol, procedures for isolation of rice gametes, electro-fusion of gametes, and culture of the produced zygotes are descri ...
AQA Level 1/2 Certificate in Biology Specification Specification
... Gas and solute exchange surfaces in humans and other organisms are adapted to maximise effectiveness. Candidates should be able, when provided with appropriate information, to explain how gas and solute exchange surfaces are adapted to maximise effectiveness. ...
... Gas and solute exchange surfaces in humans and other organisms are adapted to maximise effectiveness. Candidates should be able, when provided with appropriate information, to explain how gas and solute exchange surfaces are adapted to maximise effectiveness. ...
1 - Wsfcs
... A. All living things are made up of more than one cell, and all cells are the same size and shape. B. All living things are made up of more than one cell, but not all cells are the same size and shape. C. All living things are made up of cells of the same size and shape, but not all living things ar ...
... A. All living things are made up of more than one cell, and all cells are the same size and shape. B. All living things are made up of more than one cell, but not all cells are the same size and shape. C. All living things are made up of cells of the same size and shape, but not all living things ar ...
Human Systems and Homeostasis
... contrast, neurons develop extensions that transmit and receive messages from other neurons. Humans, like almost all multicellular organisms, are collections of specialized cells that work together. These cells arise from a single cell, the zygote, which is formed by the union of an egg and sperm. ...
... contrast, neurons develop extensions that transmit and receive messages from other neurons. Humans, like almost all multicellular organisms, are collections of specialized cells that work together. These cells arise from a single cell, the zygote, which is formed by the union of an egg and sperm. ...
1 The Diversity of Cells
... Schwann (TAY oh dohr SHVAHN) studied animals. In 1839, Schwann concluded that all animal tissues were made of cells. Soon after that, Schwann wrote the first two parts of what is now known as the cell theory. ...
... Schwann (TAY oh dohr SHVAHN) studied animals. In 1839, Schwann concluded that all animal tissues were made of cells. Soon after that, Schwann wrote the first two parts of what is now known as the cell theory. ...
Cells and Kingdoms
... is simple. The organism has only one cell that performs all life functions. Multicellular organisms are more specialized. Your own body contains many different cell types that have specific functions. Muscle cells, for example, specialize in movement. Red blood cells, on the other hand, carry oxygen ...
... is simple. The organism has only one cell that performs all life functions. Multicellular organisms are more specialized. Your own body contains many different cell types that have specific functions. Muscle cells, for example, specialize in movement. Red blood cells, on the other hand, carry oxygen ...
Licensed to: iChapters User
... Each cell performs these specialized activities in addition to The type and extent of controlled exchange vary, depending carrying on the unceasing, fundamental activities required of on the location and function of the epithelial tissue. For examall cells. The basic cell functions are essential for ...
... Each cell performs these specialized activities in addition to The type and extent of controlled exchange vary, depending carrying on the unceasing, fundamental activities required of on the location and function of the epithelial tissue. For examall cells. The basic cell functions are essential for ...
GCSE Biology Textbook sample
... • The body’s cells divide and the newly formed cells are identical to the existing cells. • Cells differentiate to become specialised, and specialised cells are organised. • When cell division accelerates out of control, cancer develops. • Cells that are unspecialised in the embryo, and cells ...
... • The body’s cells divide and the newly formed cells are identical to the existing cells. • Cells differentiate to become specialised, and specialised cells are organised. • When cell division accelerates out of control, cancer develops. • Cells that are unspecialised in the embryo, and cells ...
body systems1
... systems to maintain homeostasis and other hormones work with many organ systems to help you grow. ...
... systems to maintain homeostasis and other hormones work with many organ systems to help you grow. ...
Sickle-Cell Anemia - College of Charleston
... Children with sickle cell anemia must be cautious in play and sports; bruises and scrapes can lead to crises ...
... Children with sickle cell anemia must be cautious in play and sports; bruises and scrapes can lead to crises ...
Different Kinds of Cells Make Up Our Bodies
... because it has a different job to do. Each of these cells looks very, very different from each other. On the outside of your body, you have skin cells. Skin cells protect your body by keeping out rain, dirt, and germs. Skin holds together all your (5) separate body parts. Skin protects you from heat ...
... because it has a different job to do. Each of these cells looks very, very different from each other. On the outside of your body, you have skin cells. Skin cells protect your body by keeping out rain, dirt, and germs. Skin holds together all your (5) separate body parts. Skin protects you from heat ...
Human Body Review
... A colony of volvox behaves like one single organism, with an anterior and posterior end. In one of the regions, the eyespots are more developed. This helps the colony swim toward a light source. How is the volvox similar to a multicellular organism? A. ...
... A colony of volvox behaves like one single organism, with an anterior and posterior end. In one of the regions, the eyespots are more developed. This helps the colony swim toward a light source. How is the volvox similar to a multicellular organism? A. ...
Reproduction in Plants and animals
... are the sporangia which are borne at the end of the sporangiophores.Each haploid sporangium contains many haploid small spores produced by mitosis, and when the sporangium is ripe it becomes black and then bursts and the spores are set free. The spores are very light and easily blown by the wind. If ...
... are the sporangia which are borne at the end of the sporangiophores.Each haploid sporangium contains many haploid small spores produced by mitosis, and when the sporangium is ripe it becomes black and then bursts and the spores are set free. The spores are very light and easily blown by the wind. If ...
Reproduction
... conjugation, in which two similar organisms fuse, exchange genetic material and then break apart. Some multicellular green algae undergo a process called alternation of generations. During this process, generations of different types of organisms are produced: haploid and diploid. Haploid generation ...
... conjugation, in which two similar organisms fuse, exchange genetic material and then break apart. Some multicellular green algae undergo a process called alternation of generations. During this process, generations of different types of organisms are produced: haploid and diploid. Haploid generation ...
Student Reading Microorganism
... wide range of metabolism, and this determines where they live. They live in a particular habitat because they are able to “obtain energy” from whatever is around them. Bacteria can live and grow in practically any environment. It is this ability that has made bacteria the most numerous species on th ...
... wide range of metabolism, and this determines where they live. They live in a particular habitat because they are able to “obtain energy” from whatever is around them. Bacteria can live and grow in practically any environment. It is this ability that has made bacteria the most numerous species on th ...
Cnidarians (Phylum Cnidaria)
... contractions is not great enough to overcome water currents. Thus, medusae drift. ...
... contractions is not great enough to overcome water currents. Thus, medusae drift. ...
Respiratory System
... 1- The conducting system extends from the nostrils to the bronchi; 2- The transitional system is composed by the bronchioles; 3- The exchange system is composed of millions of alveoli. The conducting system is lined largely by pseudostratified ciliated epithelium and its main defense mechanism is ...
... 1- The conducting system extends from the nostrils to the bronchi; 2- The transitional system is composed by the bronchioles; 3- The exchange system is composed of millions of alveoli. The conducting system is lined largely by pseudostratified ciliated epithelium and its main defense mechanism is ...
Meiosis
... Male reaches under his mantle with tentacle, removes packet of sperm, and insert it into female’s egg chamber ...
... Male reaches under his mantle with tentacle, removes packet of sperm, and insert it into female’s egg chamber ...
Helpful and Harmful Microorganisms
... Imagine a colony of 10 bacteria that doubles every 20 minutes. Let’s do the Math! Calculate how many bacteria will be in the colony after two hours. Create a graph with your results. Based on this information, guess how long it would take for the colony to surpass one million organisms. Turn ...
... Imagine a colony of 10 bacteria that doubles every 20 minutes. Let’s do the Math! Calculate how many bacteria will be in the colony after two hours. Create a graph with your results. Based on this information, guess how long it would take for the colony to surpass one million organisms. Turn ...
MS-SCI-LS-Unit 1 -- Chapter 4- Cell Processes and Energy
... increase their numbers through a process of mitosis, which results in two daughter cells with identical sets of chromosomes. ...
... increase their numbers through a process of mitosis, which results in two daughter cells with identical sets of chromosomes. ...
Dictyostelium discoideum
Dictyostelium discoideum is a species of soil-living amoeba belonging to the phylum Amoebozoa, infraphylum Mycetozoa. Commonly referred to as slime mold, D. discoideum is a eukaryote that transitions from a collection of unicellular amoebae into a multicellular slug and then into a fruiting body within its lifetime. Its unique asexual lifecycle consists of four stages: vegetative, aggregation, migration, and culmination. The lifecycle of D. discoideum is relatively short, which allows for timely viewing of all stages. The cells involved in the lifecycle undergo movement, chemical signaling, and development, which are applicable to human cancer research. The simplicity of its lifecycle makes D. discoideum a valuable model organism to study genetic, cellular, and biochemical processes in other organisms.