Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Science Review • Organisms that are better adapted to their environment survive and reproduce more successfully than less well adapted organisms do is called? Answer • Natural Selection • What do we call the process by which populations slowly change over time? Answer •Evolution •What is adaptation? Answer •When certain genes make organisms more likely to survive and reproduce •What do we call when cat owners breed their pets to produce friendlier offspring? Answer •Selective breeding • What do we call it when a rabbit has 3 litters of 5 babies in litter a year? Answer •Overproduction • What evidence of natural selection is available today that was not available to Darwin? Answer There is great variation among organisms •What is a species? Answer • A species is a distinct group of animals or plants that have common characteristics and can breed with each other. Your pet Spot, is a member of the dog species. • What is a hybrid? • In biology a hybrid, also known as cross breed, is the result of mixing, through sexual reproduction, two animals or plants of different breeds What are some examples of hybrids? What is a disadvantage to being a hybrid? Answer •They can’t mate and have offspring •What features did whales possibly inherit from a fourlegged ancestor? Answer • hip bones • What is the closest relative to the lizard? Answer •Snake What are these? Answer •homologous structures, because they have similar bones • A wetland is a type of _________. Answer • SWAMP • Where would a bear with a thick fur coat live? ANSWER: A Tundra What animal can be found in a wetland? ANSWER Alligator What one word can be used to describe a desert? Answer: DRY This biome has largest number of animals and plants? ANSWER Tropical Rain Forest A hyena stealing food from a vulture is an example of ______. ANSWER COMPETITION When does competition occur? ANSWER When 2 or more organisms need the same resources. • A threadworm lives inside of an animal. It feeds off of an animal. The animal becomes unhealthy. What is the threadworm? ANSWER A parasite There are small fish that feed from and clean out the mouths of larger fish. The large fish have clean teeth and the small fish obtain their food. What type of relationship is this? ANSWER: Mutualistic There are small birds that nest beneath large bird of preys’ nests. The small birds are not in danger but they are protected from predators because of their closeness to the large birds. What kind of relationship are the two birds in? ANSWER • Commensalistic • Zebras and elephants must get their water from the same watering hole in a certain region. What will happen between the two? ANSWER • They must compete for the water. • Tapeworms live and feed off of the digested food inside an animal’s intestines. The animal becomes sick. What type of relationship is this? ANSWER • Parasitism • Viruses will always have what type of relationship with its host? ANSWER • Parasitic Draw and label a food web. Africa’s ostriches, South America’s rheas, Australia's emus, and New Zealand’s moas all share many similar characteristics. Geological evidence shows that the 4 land masses were once connected. What statement would support Darwinian ideas? Answer Organisms may have been from a common ancestor, but may show modifications due to the environment. • What are these statements an integral part of? • Limited resources lead to struggle where less fit individuals do not survive. • Populations have varieties of traits that are genetically inherited. • Some members of a population have better chances at surviving and reproducing than others. ANSWER • Darwin’s theory of evolution by natural selection • Large beaks are better at opening large dry seeds and smaller beaks are better at picking up small seeds that are abundant during wet periods. According to natural selection, what should the beak size do during a drought? ANSWER • INCREASE TRUE OR FALSE • According to natural selection, individuals in a population evolve to become more complex, and thus more fit to survive. Answer FALSE Plants in the desert need to conserve water. What adaptation might a desert plant have so it will survive? Answer • Thick leaves to store water • Can the following question be answered using the theory of evolution? • How has life on earth changed? Answer YES! What do fossils of ancient organisms show? Answer How living things have evolved since ancient times. • Different species with similar internal structures and a fossil record provides evidence of what? answer Evolution in organisms What are vestigial structures? answer Structures with no function or importance to an organism, but were important to ancestral species. • As the surrounding areas change, all organisms must do what to survive? Answer Adapt • How would a population of moths with wing patterns that look like tree bark affect the moths? Answer • They would probably not be eaten. True or False: According to natural selection, well-adapted animals will have trouble reproducing. answer False • What does a fossil record show? answer Common ancestry and changes over time • A change in a populations’ traits and extinction can be a possible result of ______ _____. answer Natural selection • A certain banana tree cannot make seeds to reproduce. What type of genetic engineering would be best to make more banana trees? answer • Vegetative propagation • What type of genetic engineering allows genetically identical offspring from a single cell? Answer: cloning How do protists move? answer Using flagella or cilia. How do Mitochondria get usable energy? answer They break down nutrients What is the function of a vacuole? answer Store food, water, and wastes Organs form body systems and body systems form ______. answer organisms What is a tissue? answer A group of similar cells that have the same role in an organism. The heart is an ______. answer organ What is an example of a covering tissue? answer skin • The smallest unit of life is a ____. answer cell Muscles contract and pull the bone to make ______. answer Movement In what kingdom do organisms produce their own food from the sun? answer Plant Which kingdoms have a true nucleus? answer Protista, Plant, Animal, and Fungi What is the sixth kingdom that is recognized by scientists? answer Eubacteria In what kingdoms do unicellular organisms not have nuclei? answer Archaebacteria Eubacteria Many frogs live in the river. If factories move near the river and pollute it, what might happen to the frogs? answer Might become extinct