PLEASE HELp!!.?

1. Lichens (1 point)


are parasites in the digestive systems of mammals.


are bacteria that survive in extremely hot water.


have a three-chambered heart and a closed circulatory system.


are symbiotic combinations of algae and fungus.


2. The lytic cycle (1 point)


is the method by which plants make sugar.


is the method by which viruses reproduce.


is the method by which cells make ATP.


is the method by which blood cells are formed.


3. When plants made the evolutionary transition onto land during the Devonian period they diverged into these two groups: (1 point)


angiosperms and gymnosperms


flowering and non flowering plants


vascular and nonvascular plants


monocots and dicots


4. Sponges obtain food (1 point)


by filtering small organisms from the water.


with stinging cells called nematocysts.


by photosynthesis.


by hunting and capturing prey


5. Organisms that are well adapted to their environment (1 point)


are larger than organisms less suited to that environment.


reproduce at a greater rate than those less suited to that environment.


live longer than organisms less suited to that environment.


need less food than those less suited to that environment.


6. Saprophytes are also called (1 point)


producers.


omnivores.


decomposers.


carnivores.


7. What is the function of meristematic tissue? (1 point)


allow exchange of carbon dioxide and oxygen


permit growth of stems and roots


transport sugar and water


attract pollinators to a plant


8. A sporozoan called Plasmodium is responsible for causing (1 point)


malaria.


red tide.


hemophilia.


swimmer's itch.


9. In flowering plants, the male gametophytes are produced by the (1 point)


stigma.


corolla.


pistil.


stamens.


10. Where does oxygen exchange occur in the human body? (1 point)


between the arteries and the veins


between the veins and the tissues


between the capillaries and the tissues


between the tissues and the organs


11. If two organisms are in the same class but different orders, they will (1 point)


be classified in the same species.


be classified in the same genus.


be classified in the same phylum.


be classified in different kingdoms.


12. The function of xylem is to (1 point)


transport sugars from the leaf to the roots of a plant


attract an insect or other animal to help pollinate a plant


transport oxygen and carbon dioxide throughout the plant


transport water from the root to the leaves of a plant


13. Which of the following combinations of characteristics describe flatworms of the phylum Platyhelminthes? (1 point)


radial symmetry, a three-layered body wall, and no distinct head region


bilateral symmetry, a three-layered body wall, and a distinct head region


radial symmetry, a two-layered body wall, and no distinct head region


bilateral symmetry, a two-layered body wall, and no distinct head region


14. Bacteria with a spherical shape are called (1 point)


coccus.


bacillus.


spirilla.


anaerobic.


15. Cniderians exhibit (1 point)


bilateral symmetry.


asymmetry.


radial symmetry.


reverse symmetry.


16. Hyphae and mycelium are body structures of (1 point)


plants.


fungi.


ciliates.


ferns.


17. A creature called Archaeopteryx is considered to be an evolutionary link between (1 point)


reptiles and mammals.


birds and mammals.


amphibians and reptiles.


reptiles and birds.


18. Red maple trees are also known as Acer rubrum. Its species name is (1 point)


red.


Acer.


maple.


rubrum.


19. A ganglion is (1 point)


a concentration of nerve cell bodies.


the respiratory structures of fish.


a specialized excretory organ in insects.


a large group of predatory cats.


20. Plant hormones that stimulate the elongation of cells and initiate gravitropism responses in root cells are called (1 point)


carotenes.


cytokinins.


auxins.


chlorophylls

PLEASE HELp!!.?
I didn't study for this test....you should be able to find the answers on the internet, searching with a few key words for each question..........