Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
diversity of LT
| Question | Answer |
|---|---|
| Which Kingdom has species whose cells do not have cell walls? | Animalia |
| Which term describes an identification tool that uses a series of two-part choices? | Dichotomous key |
| Which type of diversity describes the variety of heritable characters in a population of interbreeding individuals? | Genetic diversity |
| Which species concept focuses on the evolutionary relationships among organisms? | Phylogenetic species concept |
| Which structure that makes up genes is of most interest to modern taxonomists? | DNA |
| Population | All of the individuals of the same species living in the same area |
| Community | Groups of populations living in the same area |
| Ecosystems | All organisms in a particular area and the non-living components |
| Biome | Group of ecosystems that have the same biotic and abiotic characteristics |
| Biodiversity | The variety of life forms within an ecosystem, biome of the entire Earth |
| Genetic Diversity | Variation of the types of genes that are within ONE species |
| Species Diversity | Number of DIFFERENT species, and the abundance of each species in a defined area |
| Ecosystem Diversity | Range of habitats and processes in an ecosystem |
| Genetic Diversity example | The variety of different breeds of dogs |
| Species Diversity example | Number of different species of trees at Lemonie's Point |
| Ecosystem Diversity example | The canopy, the surface and the underbrush of a rainforest |
| Gene Pool | The stock of different genes in an interbreeding population |
| How is Genetic Diversity important to the survival of a species? | - Increases the resistance within a species - Decreases the chances of extinction |
| How is Species Diversity important to the survival of a species? | -Individual species are better able to withstand and recover from disease, climate change and invasive species - The ecosystem is more productive - The ecosystem is more sustainable |
| How is Ecosystem Diversity important to the survival of a species? | - The ecosystem can support more species diversity - The ecosystem has more ecosystem services |
| Ecosystem services | Provide benefits to people provided by the natural environment (human centric) |
| Classification | The process of grouping things based on their characteristics, classification of living things can be based on physical and behavioural traits |
| Hierarchal classification | The method of classifying organisms in which species are arranged in categories from most general to most specific. Species are grouped into categories and then sub divided using 'nested classification' |
| Why do we classify? | 1) To clearly communicate about living things with people despite language differences 2) Food safety and species protection 3) To explore how various living things are related to each other |
| How to scientific name | First name = genus (capitalized) Second name =species (not capitalized) Both in italics, unless hand written, than underlined |
| Morphological species concept | Based on physical characteristics |
| Biological species concept | Can breed and produce viable offspring |
| Phylogenetic species concept | Genetic similarities and evolutionary relationships |
| Viable | Healthy and able to reproduce |
| Advantages of scientific name (binomial nomenclature) | - allowing people around the world to understand, regardless of language - allowing scientists to keep an organized list of the species |
| All living things... | - made of 1 or more cell - grow - reproduce - use energy - respond and adapt to their environment - cellular organization |
| Prokaryotic cells | - no nucleus - no cell membrane and cell wall - single chromosome - no membrane bound organelles - often has a method of movement (flagella or cilia) |
| Eukaryotic cells | - more complex - larger -nucleus -cell membrane (wall in plant cells) - DNA inside the nucleus -many membrane bound organelles |
| Domains | Highest taxonomic rank and is based on the differences at the genetic and cellular level |
| What are the three Domains? | Bacteria, Archae, Eurkarya |
| What Kingdoms are under Bacteria? | Eubacteria (common bacteria) |
| What Kingdoms are under Archae? | Archaebacteria |
| What Kingdoms are under Eukarya? | - Protist - Fungi - Plant - Animal |
| Heterograph | An organism that cannot make its own food and gets its nutrients and energy from consuming other organisms |
| Autograph | An organism that captures energy from sunlight (or sometimes non -living substances) to produces its own energy yielding food |
| Dichotamous Key | A tool used to help identify and classify organisms based on their characteristics |
| Benefits of the Dichotomous Key | - Easy to use for identification - Standard format - Helps to understand species relationships |
| 8 Taxa (in order) | D K P C O F G S |
| 4 reasons viruses are not alive | - Not made out of cells - Cannot keep themselves in a stable state - They dont grow - They can't make their own energy |
| 2 main parts | - nucleic acid (genetic code RNA or DNA) - a protein coat (covers the nucleic acid) |
| Innate immunity | - what you were born with - first line of defence - creates a barrier, it is active and rapid (cough reflex, enzymes in tears and skin oils, mucus, skin, stomach acid) |
| Acquired immunity | - develops with exposure to various antigens - 'second line of defence' - B cells ( make antibodies that attack invaders outside the cell) - T cells (seek out and kill infected cells and they leave behind memory cells that are key to creating vaccines) |
| 3 groups of multicellular algae | red algae, brown algae, green algae |
| 3 things algae needed to evolve to survive on land | - plant embryos - vascular tissue, leaves and roots - alternation of generations |
| 5 things all plants have | - multicellular - eukaryotic - sessile (don't move) - perform photosynthesis - cell wall contains cellulose |
| 4 divisions of plants | - mosses - ferns - gymnosperms - angiosperms |
| Main characteristics of mosses | - reproduce using spores - no vascular system |
| Main characteristics of ferns | - reproduce using spores - vascular system |
| Main characteristics of gymnosperms | - reproduce using seeds - seeds develop in cones, 'naked seed' once outside of cone |
| Main characteristics of angiosperms | - reproduce using seeds - seeds develop inside fruit - have flowers, 'flowering plants' (most diverse group) |
| All animals share 6 characteristics | - eukaryotic - multicellular - heterotrophic - no cell walls - mobile at one stage of life - reproduce sexually |
| 8 characteristics to place animals into different phyla | 1) whether the organism is invertebrate or vertebrae 2) movement 3) levels of organization (cells, tissues, or organ systems) - poriferia has no tissues (sponge), cnidira have no organs (jellyfish) 4) number of body layers (all animals except poriferia and cnidira have 3 body layers) 5) symmetry 6) body cavity 7) segmentation 8) Reproduction (sexual vs asexual and internal vs external) - all animals reproduce sexually but some can reproduce asexually (ex. fragmentation in starfish) |
| 3 body layers | 1) Ectoderm - outer layer ( skin and nervous tissue ) 2) Endoderm - inner layer ( lungs, liver, pancreas, etc ) 3) Mesoderm - middle layer (muscles, blood, kidneys, etc ) |
| Three types of symmetry | 1) Asymmetrical 2) Biradial - divided into two equal halves 3) Radial - divided along any axis |
| Coelem | a fluid filled cavity that provides space for the development of organs |
| 7 phyla of invertebrates | Porifera, cnidaria, molluscs (3 classes) , echinoderm, arthropod (4 subphyla), annelida |
| 5 classes of vertebrates | Fish, amphibians, reptiles, birds, mammals |
| Arthropod Subphyla | |
| Molluscs 3 classes | Bivalve, gastropod, cephalopod |
| Vertebraes | - have an endoskeleton made of cartilage or bone, a spine and a spinal cord - have complex organ systems including a closed circulatory system |
| Ectotherm | cannot regulate their body temperature and it is affected by the external environment |
| Endotherm | can regulate their body temperature |
| Heart chambers (vert.) | 2, 3 or 4 heart chambers |
| Respiratory system (vert.) | fish and juvenile amphibians extract oxygen from water using gills while all other vertebraes breathe using lungs. |
| External fertilization | - when a males sperm fertilizes a females egg outside of the females body |
| Internal fertilization | - when a males sperm fertilizes a females egg inside of the females body |
| egg vs birth | If an organism uses internal fertilization the offspring van develop inside a shelled egg or inside a placenta. |
Created by:
humclaren