biology exam: classifications
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biology exam: classifications - Marcador
biology exam: classifications - Detalles
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| 🇬🇧 | 🇬🇧 |
| What does infertile mean | Cannot produce an offspring |
| What is taxonomy | The study of classifications |
| Organisms are classified based on two things | 1physical appearance (morphology and anatomy), 2molecular evidence. |
| What is morphology | Form/ general shape |
| What is anatomy | Detailed structure; internal structure; structure of bones |
| What is molecular evidence | Similarity in DNA |
| What are the three domains | Eukaryote, bacteria, archaea |
| What are the characteristics of living things | Movement, nutrition, respiration, excretion, growth, reproduction, sensitivity |
| What is the binomial system | The system of naming an organism a scientific name |
| What are the two things that make up a species | 1 similarity in traits, 2 ability to produce a fertile offspring |
| What is stimuli | Change in the environment that organisms respond to |
| Types of stimuli | Temperature, chemicals in the atmosphere, changes in light |
| What are heterotrophs | Organisms that consume food |
| What are autptrophs | Organisms that make their own food |
| What are the levels of classification | Domain, kingdom, phylum, class, order, family, genus, species |
| What are the three domains | Eukarya, archaea, bacteria |
| Every cellhas... | Cytoplasm, cell membrane, dna, ribosomes |
| What is the function of ribosomes | They make protein |
| Whats the difference between the three domains | Eukarya have a nucleus unlike archaea and bacteria, archaea and bacteria can both have cell walls, but their cell walls have different structures |
| What are eukaryotes | Cells that have a nucleus |
| What are prokaryotes | Cells that have no nucleus |
| What is a species | A group of organisms that share similar traits or characteristics and can breed to produce a fertile offspring |
| Naming species by the binomial system | First name: genus second name: species |
| What is classification | To put organisms in groups of catagories based on their traits |
| What are the four kingdoms | Protests, animals, plants, fungi |
| What are animals | Heterotrophs- multi cellular |
| What are fungi | Decomposers- uni or multi cellular |
| What are decomposers | Organisms that break down food using digestive enzymes to get energy from it |
| What are the main phyla of animals | Chordata, annelids, arthropods |
| What are chordates | Animals that have backbones |
| What are arthropods | Animals which have joint legs and an exsoskeleton |
| What are annelids | Segmented worms, no legs |
| Classes of the phylum chordata | Fish, amphibians, reptiles, birds, mammals |
| What are molluscs | Phyla of animals, soft bodied, muscular foot, some have shells |
| Classes of arthropods | Insects, arachnids, crustaceans, myriapods |
| Explain the structure of the insects body | Thorax, abdomen, head, 2 pairs of antennae, 3 pairs of legs, terrestrial, wings may be vestigial |
| EXPLAIN THE STRUCTURE OF ARACHNIDS | 8 joint legs, no wings, no antennae, breath through gills, |
| Explain the structure of crustaceans | Tough outer exoskeleton, more than 4 pairs of legs,breath through gills, therfore most are aquatic |
| Explain the structure of myriapods | Many pairs of joint legs; a pair for each segment, one pair of antennae |
| Why arent viruses considered as living things | Because they are only alive when inside a hosted cell. otherwise they just exist. |
| What are viruses made of | Proteins and genetic material |
| What do viruses cause | Diseases |