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biology test

QuestionAnswer
Which of the following arrangements lists items from simpler to more complex? cell, tissue, organ, organ system
Because the two species of barnacles attempt to use the same resources, they are in competition with each other.
An example of a biotic factor in an ecosystem is the number of competing species.
Which of these is not a property of all living things? care for their offspring
Which of the following is an example of commensalism? An orchid plant lives in the treetops, gaining access to sun and pollinators, but not harming the tree.
are sets of inherited instructions for making proteins that are coded in a molecule called deoxyribonucleic acid. Genes
In 1859, a small colony of 24 rabbits was brought to Australia. By 1928 it was estimated that there were 500 million rabbits in a 1-million square mile section of Australia. The rabbits had no natural predators in Australia.
The traits of individuals best adapted to survive become more common in each new generation because organisms with those traits are more likely to survive and reproduce.
A student wrote several observations in a field notebook. Observations • two grey wolves• five moose • several species of conifer trees • large granite rock • shallow pond. ecosystem
Does an organism need to show the six properties of life at every stage of its development? No, but it has to show all of them at some stage of its life.
The four steps or requirements of evolution by natural selection are overproduction, variation, selection, adaptation.
The ultimate source of energy for producers and all consumers is the sun.
Which of the following statements is false regarding blood pressure in humans? A healthy young adult will have a blood pressure reading of 145/90.
Which two processes help the Earth’s atmosphere maintain a fairly constant level of oxygen (roughly 21%)? cellular respiration and photosynthesis
Which of the following characteristics of living things best explains why birds fly south for the winter? Living things respond to their environment.
Which of the following is not part of the cell theory? All cells contain the same organelles.
Which of the following is an example of mutualism? An alfalfa plant gains fixed nitrogen from the bacterial species Rhizobium in its root system, while Rhizobium gains carbohydrates from the plant.
Which of the following is an example of parasitism? Roundworms establish a colony inside a cat’s digestive tract.
Some toads that live in a hot, dry environment bury themselves in the soil during the day. What characteristic of living things does this behavior describe? responsiveness
The algae are _____, while the leopard seals are _____. producers, consumers
Which branches of biology focus on the study of plants and of animals? botany and zoology
Which of the following is an abiotic factor? * the presence of strong currents around a reef
Which of the following is an example of predation? A fungus captures nematodes as a food source.
Evolution all of the above
Which of these is an example of reproduction A bacterium splits into two bacteria.
An example of a symbiotic relationship in which one organism is harmed is the relationship between fleas and a house cat.
Many orchids produce their nectar at the bottom of long tubes called nectaries. The insects that feed on them are equipped with tongues that are almost the same length. coevolution.
Created by: connor heck
 

 



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