Chapter 43.
... foreign antigens cause response from WBCs viruses, bacteria, protozoa, parasitic worms, fungi, toxins non-pathogens: pollen & transplanted tissue ...
... foreign antigens cause response from WBCs viruses, bacteria, protozoa, parasitic worms, fungi, toxins non-pathogens: pollen & transplanted tissue ...
Asexual reproduction
... Asexual reproduction - fission New organisms are produced from one parent. DNA or offspring is identical to the DNA of parent. Mitosis is an example of this form of repro. Paramecium- asexual ...
... Asexual reproduction - fission New organisms are produced from one parent. DNA or offspring is identical to the DNA of parent. Mitosis is an example of this form of repro. Paramecium- asexual ...
Methods of Sexual Reproduction
... Process by which gametes arrive in the same place at the same time. ...
... Process by which gametes arrive in the same place at the same time. ...
Levels of Organization
... Within multi-cellular organisms there is division of labor. Division of labor means that the work (labor) of keeping the organism alive is divided (division) among the different parts of the body. Each part has a job to do and as each part does its special job, it works in harmony with all the other ...
... Within multi-cellular organisms there is division of labor. Division of labor means that the work (labor) of keeping the organism alive is divided (division) among the different parts of the body. Each part has a job to do and as each part does its special job, it works in harmony with all the other ...
Characteristics of life
... Excretion is the removal of waste products of metabolism e.g. urea and carbon dioxide from the body. These waste products can become toxic to the cell if allowed to accumulate. The organism tries to maintain a constant internal environment (homeostasis). Plants have less need for excretion because t ...
... Excretion is the removal of waste products of metabolism e.g. urea and carbon dioxide from the body. These waste products can become toxic to the cell if allowed to accumulate. The organism tries to maintain a constant internal environment (homeostasis). Plants have less need for excretion because t ...
Body Systems Work Together
... 7. Exchanges gases 8. Sends chemical signals (hormones) to control 9. Breaks down food into nutrients. ...
... 7. Exchanges gases 8. Sends chemical signals (hormones) to control 9. Breaks down food into nutrients. ...
Grade 8 Science Cells and Systems
... Identify characteristics of living things, and describe how different living things exhibit these characteristics. Include: composed of cells; reproduce; grow; repair themselves; require energy; respond to the environment; have a lifespan; produce wastes ...
... Identify characteristics of living things, and describe how different living things exhibit these characteristics. Include: composed of cells; reproduce; grow; repair themselves; require energy; respond to the environment; have a lifespan; produce wastes ...
Cells and Cellular Organization
... 1.Cells obtain substances (such as oxygen and glucose) by absorption. 2.Cells get rid of substances (carbon dioxide and wastes) by secretion. 3.Since cells have no complex method of transport, the cell must be small enough for the surface area of the cell to service the contents of the cell. 4.Cell ...
... 1.Cells obtain substances (such as oxygen and glucose) by absorption. 2.Cells get rid of substances (carbon dioxide and wastes) by secretion. 3.Since cells have no complex method of transport, the cell must be small enough for the surface area of the cell to service the contents of the cell. 4.Cell ...
Biology Spring Review
... d. introduced by immigrating species. 19. An organism will not evolve a trait because it needs or wants it. New traits are only caused by _______________. 20. Which of the following is the best statement about natural selection? a. Most populations of organisms evolve to become more and more alike, ...
... d. introduced by immigrating species. 19. An organism will not evolve a trait because it needs or wants it. New traits are only caused by _______________. 20. Which of the following is the best statement about natural selection? a. Most populations of organisms evolve to become more and more alike, ...
Life Science: Cells
... 1. Review with the class the parts of a cell and the jobs carried out by each part. The Cells Alive! Web site (www.cellsalive.com) can be very helpful for the review. There you can see interactive diagrams featuring the parts of both plant and animal cells and watch animations of cell division. 2. B ...
... 1. Review with the class the parts of a cell and the jobs carried out by each part. The Cells Alive! Web site (www.cellsalive.com) can be very helpful for the review. There you can see interactive diagrams featuring the parts of both plant and animal cells and watch animations of cell division. 2. B ...
Asexual Reproduction - Effingham County Schools
... • involves specialized sex cells called gametes • the union of a male and female gamete results in the formation of a zygote that develops into a new ...
... • involves specialized sex cells called gametes • the union of a male and female gamete results in the formation of a zygote that develops into a new ...
Advantages and Disadvantages of Asexual Reproduction
... conditions. Genetically identical offspring will respond to the environment in the same way. If population members lack traits that enable them to reproduce, the entire population could die off. In contrast, sexual reproduction increases genetic diversity, which raises the chance that at least a few ...
... conditions. Genetically identical offspring will respond to the environment in the same way. If population members lack traits that enable them to reproduce, the entire population could die off. In contrast, sexual reproduction increases genetic diversity, which raises the chance that at least a few ...
PowerPoint- Types of Reproduction
... Binary Fission: The splitting of a one-celled organism into 2 equal size offpsring. Example: Bacteria & Amoeba ...
... Binary Fission: The splitting of a one-celled organism into 2 equal size offpsring. Example: Bacteria & Amoeba ...
Chapter 5 Tissues
... 2.Apocrine glands-secretions contain parts of secretory cells 3. Holocrine glands-secretion contains entire secretory cells Endocrine glands-secretes hormones directly into the blood or body fluids ...
... 2.Apocrine glands-secretions contain parts of secretory cells 3. Holocrine glands-secretion contains entire secretory cells Endocrine glands-secretes hormones directly into the blood or body fluids ...
Disease-causing agents such as viruses, bacteria, and protists are
... 21. The function of the circulatory system is to a. Provide oxygen and remove excess carbon dioxide from the body. b. Bring nutrients and hormones to cells. c. Transport cell waste for removal. d. All of the above. 22. Which body system works with the circulatory system to regulate oxygen and carbo ...
... 21. The function of the circulatory system is to a. Provide oxygen and remove excess carbon dioxide from the body. b. Bring nutrients and hormones to cells. c. Transport cell waste for removal. d. All of the above. 22. Which body system works with the circulatory system to regulate oxygen and carbo ...
Unit 9 Tax Microbes
... • What makes a virus a “smart” or “successful” virus? – A smart virus is one that does not kill its host right away; moreover, a smart virus wants to be able to survive and reproduce for as long as possible without killing its host. From an evolutionary standpoint, is Ebola a “smart” virus? ...
... • What makes a virus a “smart” or “successful” virus? – A smart virus is one that does not kill its host right away; moreover, a smart virus wants to be able to survive and reproduce for as long as possible without killing its host. From an evolutionary standpoint, is Ebola a “smart” virus? ...
Oct 2310:58 AM Comparing Cells Lab Analysis Questions
... 1. Describe 3 differences between the plant cells and the animal cells you looked at. 2. Thinking about how the structure and arrangement of cells contributes to the functioning of the organism, propose reasons for the differences you mentioned. 3. Why do you think we stained the cheek cells but ...
... 1. Describe 3 differences between the plant cells and the animal cells you looked at. 2. Thinking about how the structure and arrangement of cells contributes to the functioning of the organism, propose reasons for the differences you mentioned. 3. Why do you think we stained the cheek cells but ...
preventing-disease-1
... We also have our own flora of harmless bacteria called COMMENSALS They compete more successfully than pathogens for the small amount of nutrients on the skin They are also found in the mouth, respiratory tract, vagina and digestive system ...
... We also have our own flora of harmless bacteria called COMMENSALS They compete more successfully than pathogens for the small amount of nutrients on the skin They are also found in the mouth, respiratory tract, vagina and digestive system ...
Cellular Replication Notes Review
... _____________________48. Spermatogenesis causes the production of 1 egg and 3 polar bodies _____________________49. A zygote forms when a sperm joins with an egg. _____________________50. Cell divide by mitosis if identical copies of the parent cells are needed _____________________51. Meiosis can h ...
... _____________________48. Spermatogenesis causes the production of 1 egg and 3 polar bodies _____________________49. A zygote forms when a sperm joins with an egg. _____________________50. Cell divide by mitosis if identical copies of the parent cells are needed _____________________51. Meiosis can h ...
Life Science Reference Charts
... function similarly in all organisms. need energy, which animal and plant cells get from cellular respiration. make waste that moves across the cell and out the cell membrane. divide to cause growth and development of the organism. ALL organisms need energy, which animals get by eating and ...
... function similarly in all organisms. need energy, which animal and plant cells get from cellular respiration. make waste that moves across the cell and out the cell membrane. divide to cause growth and development of the organism. ALL organisms need energy, which animals get by eating and ...
Quarter 4 Final Review ANSWERS Mitosis is a cell process in which
... 5. A diploid cell all chromosomes are found in a pair. For example, a human diploid cell has 46 chromosomes, found in 23 pairs. 6. A haploid cell has half the number of chromosomes as body cells. This are always sex cells. 7. A normal human body cell has 46 chromosomes found in 23 pairs. A normal hu ...
... 5. A diploid cell all chromosomes are found in a pair. For example, a human diploid cell has 46 chromosomes, found in 23 pairs. 6. A haploid cell has half the number of chromosomes as body cells. This are always sex cells. 7. A normal human body cell has 46 chromosomes found in 23 pairs. A normal hu ...
STAAR Review Day Five Independent Practice 3. In humans, the
... STAAR Review Day Five Independent Practice 1. Cells of the epithelial tissue are packed closely together in layers. How do epithelial cells protect organs within the human body? a. Epithelial cells fight invading bacteria and viruses by entering them and destroying their DNA b. Epithelial cells prov ...
... STAAR Review Day Five Independent Practice 1. Cells of the epithelial tissue are packed closely together in layers. How do epithelial cells protect organs within the human body? a. Epithelial cells fight invading bacteria and viruses by entering them and destroying their DNA b. Epithelial cells prov ...
Midterm Review: Living Environment Enzymes
... Place a 10% salt solution under the cover slip. This is done by putting a drop of salt solution next to one edge of the cover slip, then absorbing water from the opposite side of the slip using a paper towel. See below: ...
... Place a 10% salt solution under the cover slip. This is done by putting a drop of salt solution next to one edge of the cover slip, then absorbing water from the opposite side of the slip using a paper towel. See below: ...
Topic 1 – Measurement and graphing
... Hypothesis – If (independent variable) then, (dependent variable) Independent variable (I change, what is different between control and experimental group?) Dependent variable (what you will measure- should be in SI units!) 2 Control variables (what you will keep the same for both control an ...
... Hypothesis – If (independent variable) then, (dependent variable) Independent variable (I change, what is different between control and experimental group?) Dependent variable (what you will measure- should be in SI units!) 2 Control variables (what you will keep the same for both control an ...
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.