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Description
Flashcards by amandaqt03, updated more than 1 year ago
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Created by amandaqt03
almost 9 years ago
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| Question | Answer |
| What is an adaptation? | a trait that helps an organism survive and reproduce. |
| A variation is a _______ between individuals of the same species | Difference |
| What are 2 function of the xylem? | Allows movement of water & minerals from roots to leaves and provides structure columns of hollow, dead reinforced cells |
| What process can cause variation? | Sexual reproduction |
| True/False individual organisms can adapt new traits in order to survive | False |
| A process that occurs when organisms that are better adapted to their environment are able to survive and reproduce is called __________? | Natural Selection |
| the wings of a seagull, the hooves of a horse and webbed feet of a duck are all examples of. . . A. Structural adaptation B. Physiological adaptation C. Behavioral adaptation | A. Structural adaptation |
| The migration of a duck, the hibernation of a bear are examples of. . . A. Structural adaptation B. Physiological adaptation C. Behavioral adaptation | C. Behavioral adaptation |
| saliva digesting carbohydrates and the protein web made by a spider are examples of. . . A. Structural adaptation B. Physiological adaptation C. Behavioral adaptation | B. Physiological adaptation |
| Which adaptation would help an animal in an aquatic environment? Wings, webbed feet of fur? | webbed feet |
| A birds diet consists of berries. During the summer when many berries are available, the competition between the birds for food will___________ . (Increase or Decrease) | decrease |
| the side of a volcano following an eruption that is starting to grow small weeds is undergoing ________succession | primary |
| the first species to colonize an area is a ________ ________ . | pioneer species |
| ______ is a example of a pioneer species . | lichen |
| An adaptation where color matching is used so an organism can blend into its surroundings is? | Camouflage |
| the process by which humans use animal breeding and plant breeding to select variations that are useful is called . . . | selective breeding |
| adaptations of an organism might include. . . A. Camouflage B. Streamlined bodies C. ability of a plant to hold water in its stems D. All of the above | D. All of the above |
| a scientist cross 2 different varieties of corn to produce 1 variety that has traits from both corns which help the corn fight against pests. What is this technique an ex. of . . . | Selective breeding {artificial selection} |
| an ecosystem has the ability to support, maintain, or endure and remain productive over a long period of time is called its. . . | sustainability |
| biodiversity is . . . | the # of diff. species in an area |
| what is the biggest threat to biodiversity? | Human activity |
| We sometimes introduce species into areas they are not usually found. This is called an ________ _______ | invasive species |
| An example of habitat destruction is _____________ . This is a threat to biodiversity. | deforestation |
| _______ ________ is the variety of all the genetic material that is present in organisms {due to sexual reproduction} | genetic diversity |
| Why is diversity of genetic material important to the stability of ecosystems? | it enables species to adapt to and cope w/ changes in the environment. |
| Darwin's theory of Natural Selection says that a _______ can adapt over time to survive and reproduce. | Species |
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