Reproductive Organs
... Brackish Diluted sea water intermediate in salinity between sea water and fresh water. Branchium A gill. Brood To care for developing eggs outside the body. Brown body A dark sphere of waste-containing cells that remains lodged in the coelom following regression by bryozoan polypides. Buccal cavity ...
... Brackish Diluted sea water intermediate in salinity between sea water and fresh water. Branchium A gill. Brood To care for developing eggs outside the body. Brown body A dark sphere of waste-containing cells that remains lodged in the coelom following regression by bryozoan polypides. Buccal cavity ...
relationship-between tissues-of-the
... together with very little intercellular matrix. Because the tissues form coverings and linings, the cells have one free surface that is not in contact with other cells.1 Epithelial tissue comprises an unin ...
... together with very little intercellular matrix. Because the tissues form coverings and linings, the cells have one free surface that is not in contact with other cells.1 Epithelial tissue comprises an unin ...
Scheme of Work for IGCSE Biology
... Bacteria: These are microscopic single-celled organisms; they have a cell wall, cell membrane, cytoplasm and plasmids; they lack a nucleus but contain a circular chromosome of DNA; some bacteria can carry out photosynthesis but most feed off other living or dead organisms. Examples include Lactobaci ...
... Bacteria: These are microscopic single-celled organisms; they have a cell wall, cell membrane, cytoplasm and plasmids; they lack a nucleus but contain a circular chromosome of DNA; some bacteria can carry out photosynthesis but most feed off other living or dead organisms. Examples include Lactobaci ...
4 - King Edward VI School
... Bacteria: These are microscopic single-celled organisms; they have a cell wall, cell membrane, cytoplasm and plasmids; they lack a nucleus but contain a circular chromosome of DNA; some bacteria can carry out photosynthesis but most feed off other living or dead organisms. Examples include Lactobaci ...
... Bacteria: These are microscopic single-celled organisms; they have a cell wall, cell membrane, cytoplasm and plasmids; they lack a nucleus but contain a circular chromosome of DNA; some bacteria can carry out photosynthesis but most feed off other living or dead organisms. Examples include Lactobaci ...
aipmt-2006
... 51. Identify the correct statement for change of Gibbs energy for a system(∆Gsystem) at constant temperature and pressure : A. If ∆Gsystem > 0, the process is spontaneous B. If ∆Gsystem = 0, the system has attained equilibrium C. If ∆Gsystem = 0, the system is still moving in a particular direction ...
... 51. Identify the correct statement for change of Gibbs energy for a system(∆Gsystem) at constant temperature and pressure : A. If ∆Gsystem > 0, the process is spontaneous B. If ∆Gsystem = 0, the system has attained equilibrium C. If ∆Gsystem = 0, the system is still moving in a particular direction ...
Mid-term Review
... • Large in plants and small in animal cells • Cell Membrane • Boundary of cell, allows certain substances in and keeps certain substances out QuickTime™ and a decompressor are needed to see this picture. ...
... • Large in plants and small in animal cells • Cell Membrane • Boundary of cell, allows certain substances in and keeps certain substances out QuickTime™ and a decompressor are needed to see this picture. ...
Loose Connective Tissues
... • Fibrocartilage discs in the intervertebral spaces and the knee joints support the huge loads up and down the long axis of the body. Elastic cartilage Copyright © John Wiley & Sons, Inc. All rights reserved. ...
... • Fibrocartilage discs in the intervertebral spaces and the knee joints support the huge loads up and down the long axis of the body. Elastic cartilage Copyright © John Wiley & Sons, Inc. All rights reserved. ...
1_ Organisation of resp syst
... court size):facilitate gas exch.) • Rich blood supply- capillaries form sheet over alveoli • Alveolar pores • Type I alveolar cells – Make up wall of alveoli, single layer epithelial cells ...
... court size):facilitate gas exch.) • Rich blood supply- capillaries form sheet over alveoli • Alveolar pores • Type I alveolar cells – Make up wall of alveoli, single layer epithelial cells ...
Biology-N5-Past-Paper-Questions-Multicellular
... Identify one example of each of the cells described below by using letters from the diagram to complete the boxes. Each letter may be used once, more than once or not at all. Transparent cells ...
... Identify one example of each of the cells described below by using letters from the diagram to complete the boxes. Each letter may be used once, more than once or not at all. Transparent cells ...
Chapter 32 Integumentary, Skeletal, and Muscular Systems
... layers of epidermal cells contain keratin (KER uh tun), a protein which waterproofs and protects the cells and tissues that lie underneath. These dead, outer cells are constantly shed. Figure 32.2 shows that some of the dust in a house actually is dead skin cells. As much as an entire layer of skin ...
... layers of epidermal cells contain keratin (KER uh tun), a protein which waterproofs and protects the cells and tissues that lie underneath. These dead, outer cells are constantly shed. Figure 32.2 shows that some of the dust in a house actually is dead skin cells. As much as an entire layer of skin ...
9 - The application of population genomics to fisheries management
... those that are unattached, such as jellyfish, can swim only feebly. None can chase their prey. Indeed, we might easily get the false impression the cnidarians were placed on earth to provide easy meals for other animals. The truth is, however, many cnidarians are very effective predators that are abl ...
... those that are unattached, such as jellyfish, can swim only feebly. None can chase their prey. Indeed, we might easily get the false impression the cnidarians were placed on earth to provide easy meals for other animals. The truth is, however, many cnidarians are very effective predators that are abl ...
Biology-N5-Past-Paper-Questions-Multicellular
... The diagram below represents a structure found in the small intestine. The arrows show the direction of the flow of fluids through the structure. ...
... The diagram below represents a structure found in the small intestine. The arrows show the direction of the flow of fluids through the structure. ...
Content - erie1bocesalternativeeducation
... Proper use of microscope. Be able to describe a cell and functions of organelles. Be able to state Cell Theory Be able to compare and contrast animal vs. plant cell. Be able to describe processes of movement into and out of the cell. ...
... Proper use of microscope. Be able to describe a cell and functions of organelles. Be able to state Cell Theory Be able to compare and contrast animal vs. plant cell. Be able to describe processes of movement into and out of the cell. ...
Cambridge International Examinations Cambridge
... (b) In 1999, Dutch scientists discovered a new reaction, the anammox reaction, to add to the nitrogen cycle. They discovered the bacterium Brocadia anammoxidans that converts ammonia, nitrite ions and nitrate ions to nitrogen gas (N2) in anaerobic environments. The reaction carried out by these bact ...
... (b) In 1999, Dutch scientists discovered a new reaction, the anammox reaction, to add to the nitrogen cycle. They discovered the bacterium Brocadia anammoxidans that converts ammonia, nitrite ions and nitrate ions to nitrogen gas (N2) in anaerobic environments. The reaction carried out by these bact ...
Chapter 21 The Lymphatic System
... 3. Lipid absorption: – Lacteals (what are they?) in small intestine absorb dietary lipids ...
... 3. Lipid absorption: – Lacteals (what are they?) in small intestine absorb dietary lipids ...
Muscular System
... • If there are less muscle cells per nerve cell, those muscles are more precise • If there are more muscle cells per nerve cell, those muscles are less precise • Each muscle has thousands of motor units, when you use a muscle some of the units contract while others are relaxed • All-or-none Princip ...
... • If there are less muscle cells per nerve cell, those muscles are more precise • If there are more muscle cells per nerve cell, those muscles are less precise • Each muscle has thousands of motor units, when you use a muscle some of the units contract while others are relaxed • All-or-none Princip ...
Chapter 1 - Napa Valley College
... Identify the bones that form the orbit. Name them in alphabetical order. See Column VII of CHOICES ...
... Identify the bones that form the orbit. Name them in alphabetical order. See Column VII of CHOICES ...
uncorrected page proofs
... organisms, living separately or in a group. The following box provides a clue as to how multicellularity might have first evolved in groups of unicellular organisms. ...
... organisms, living separately or in a group. The following box provides a clue as to how multicellularity might have first evolved in groups of unicellular organisms. ...
proofs oofs proofs proof
... blood volume of a human adult. Of course, you do not Urine produced by all these nephrons reaches the produce urine at the rate of more than 6 litres per hour. renal pelvis and drains into the ureter. We will see later in this chapter (p. 171) that most of this filtrate is returned to the bloodstrea ...
... blood volume of a human adult. Of course, you do not Urine produced by all these nephrons reaches the produce urine at the rate of more than 6 litres per hour. renal pelvis and drains into the ureter. We will see later in this chapter (p. 171) that most of this filtrate is returned to the bloodstrea ...
BIO205 - National Open University of Nigeria
... Observe the characteristics that distinguish plant and animal cells. Define proteins and list the 20 amino acids found in proteins Show diagrammatically amino acid structure and the peptide bond State the types and functions of proteins Describe transcription and translation Define nucleic acid, lis ...
... Observe the characteristics that distinguish plant and animal cells. Define proteins and list the 20 amino acids found in proteins Show diagrammatically amino acid structure and the peptide bond State the types and functions of proteins Describe transcription and translation Define nucleic acid, lis ...
LESSON 5 RESPIRATORY SYSTEM INTRODUCTION The
... each divide into several smaller tubes called bronchioles. At the end of these separate bronchioles are millions of small air sacs or alveoli. Each one of these singular alveolus is made up of one layer of epithelial cells. Surrounding the alveolus are very small one-celled, thick blood vessels call ...
... each divide into several smaller tubes called bronchioles. At the end of these separate bronchioles are millions of small air sacs or alveoli. Each one of these singular alveolus is made up of one layer of epithelial cells. Surrounding the alveolus are very small one-celled, thick blood vessels call ...
The Power of the Almighty Bone Broth
... way to increase and feed the collagen in the body. In a warm liquid form it lends itself to easy digestion, and is generally well tolerated in people with gastrointestinal conditions and food sensitivities. ...
... way to increase and feed the collagen in the body. In a warm liquid form it lends itself to easy digestion, and is generally well tolerated in people with gastrointestinal conditions and food sensitivities. ...
Body Systems Working Together
... • Food/nutrients are brought into the body through the digestive system where it is broken down into very small molecules • The Circulatory system carries these nutrient molecules around the body to the cells • Endocrine: produces substances, like insulin, which aid in the absorption of the nutrient ...
... • Food/nutrients are brought into the body through the digestive system where it is broken down into very small molecules • The Circulatory system carries these nutrient molecules around the body to the cells • Endocrine: produces substances, like insulin, which aid in the absorption of the nutrient ...
Cell theory
In biology, cell theory is a scientific theory which describes the properties of cells. These cells are the basic unit of structure in all organisms and also the basic unit of reproduction. With continual improvements made to microscopes over time, magnification technology advanced enough to discover cells in the 17th century. This discovery is largely attributed to Robert Hooke, and began the scientific study of cells, also known as cell biology. Over a century later, many debates about cells began amongst scientists. Most of these debates involved the nature of cellular regeneration, and the idea of cells as a fundamental unit of life. Cell theory was eventually formulated in 1838. This is usually credited to Matthias Schleiden and Theodor Schwann. However, many other scientists like Rudolf Virchow contributed to the theory. Cell theory has become the foundation of biology and is the most widely accepted explanation of the function of cells.The three tenets to the cell theory are as described below: All living organisms are composed of one or more cells. The cell is the most basic unit of life. All cells arise from pre-existing, living cells, by biogenesis.