BiOOOO PLEASE HELP ME !?

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.

21. All organisms classified as protists (1 point)

are heterotrophic.

are parasites.

possess a nucleus.

manufacture their own food.

22. Giant kelp form dense “forests” in the ocean. Kelp are classified as (1 point)

algae

prokaryotes.

protists.

fungi.

23. A group of organisms of different species living together in a particular place is called a



(1 point)

population.

community.

ecosystem.

biosphere.

24. The phylum Porifera includes (1 point)

sea squirts.

segmented worms.

starfish.

sponges.

25. The occurrence of the same blood protein in a group of species provides evidence that these species (1 point)

evolved in the same habitat

evolved in different habitats

descended from a common ancestor

descended from different ancestors

26. Muscles are connected to bones by bands of tissue called (1 point)

cartilage.

tendons.

sphincters.

ligaments.

27. A feeding structure called a radula is possessed by (1 point)

mollusks.

arthropods.

annelids.

chordates.

28. Most biologists consider these organisms the direct ancestors of land plants: (1 point)

Phylum Ciliophora – the ciliates

Phylum Basidiomycota – the club fungi

Phylum Chlorophyta – the green algae

Phylum Pyrrophyta – the dinoflagellates

29. An amniotic egg first evolved in (1 point)

fish.

reptiles.

echinoderms.

birds.

30. The organism that causes Athlete’s foot is a member of the kingdom (1 point)

archaebacteria

protista

eubacteria

fungi

31. Precipitation that becomes overly acidic contains harmful levels of these acids (1 point)

sulfuric and nitric acid.

hydrochloric and carbonic acid.

acetic and boric acid.

lactic and muriatic acid.

32. Tube feet and radial symmetry describe the phylum (1 point)

arthropoda

echinodermata.

nematoda.

cnidaria.

33. Natural selection could not occur without (1 point)

genetic variability in species.

interspecific competition.

environmental changes.

the ozone layer.

34. Bryophytes are ____ plants that include _____. (1 point)

nonvascular; mosses

nonvascular; ferns

vascular; mosses

vascular; ferns

35. Production of blood clots is the job of (1 point)

red blood cells.

plasma.

white blood cells.

platelets.

36. Which of the following organisms possesses jointed appendages, an open circulatory system, and an exoskeleton? (1 point)

a starfish

a snail

a spider

a tapeworm

37. The waxy covering that protects the leaves of plants and helps prevent water loss in the (1 point)

cell membrane.

cuticle.

stomata.

sori.

38. A relationship between a producer and consumer is best illustrated by (1 point)

a caterpillar eating a milkweed plant.

a frog eating a dragonfly.

a shark eating a scuba diver.

an owl eating a mouse.

39. Which feature is NOT shared by members of the phylum Chordata? (1 point)

a tail

gill slits

a notochord

a water vascular system

40. The organism called Euglena is a protist that (1 point)

swims by means of cilia.

is classified in the phylum Sporozoa.

is parasitic.

is both autotrophic and heterotrophic

41. Stems exhibit _____ and _____. (1 point)

positive phototropism and positive gravitropism

negative phototropism and positive gravitropism

positive phototropism and negative gravitropism

negative phototropism and negative gravitropism

42. In his “primordial soup” experiment, Stanley Miller did not add oxygen to the apparatus because (1 point)

it is not essential to most forms of life.

it does not react with ammonia, methane, or hydrogen.

it would have lead to the formation of microorganisms.

it was not believed to have been present in the Earth’s early atmosphere.

43. All of the following evolved from early reptiles except: (1 point)

amphibians

birds

snakes

mammals

44. The functional unit of the kidney where urine production occurs is called the (1 point)

bronchiole.

nephron.

Malpighian tubule.

collar cell complex.

45. The term deciduous refers to (1 point)

plants that show seasonal loss of leaves.

mushrooms that grow in large rings.

microscopic organisms that undergo photosynthesis.

life cycles that alternate between haploid and diploid forms.

46. If CFCs were banned by all countries, (1 point)

acid rain would be eliminated.

destruction of the ozone layer would stop quickly.

photochemical smog would be reduced in large cities.

chlorofluorocarbons already in the atmosphere would continue to destroy ozone for another century.

47. Frogs, toads, and salamanders are classified in the class (1 point)

amphibia.

reptilia.

aves.

Osteichthyes.

48. Who developed the system of classifying organisms by assigning them a genus and species name? (1 point)

Miller

Linnaeus

Darwin

Aristotle

49. Two categories of the flowering plants called angiosperms are (1 point)

conifers and cycads.

monocots and dicots.

mosses and liverworts.

mold and mildew.

50. Cells of the skeletal system are called (1 point)

osteocytes.

myocytes.

monocytes.

myofibers.

BiOOOO PLEASE HELP ME !?
LMAO... the answer is ....





Do



Your



Homework



And



You



Might



Just



Learn



Something!
Reply:1. are symbiotic combinations of algae and fungus

2.

3. monocots and dicots (not too sure)

4. by filtering small organisms from the water

5. reproduce at a greater rate

6. deomposers

7.

8. malaria

9. stamens

10. between the capillaries and the tissues





Too much...... You should break it into separate questions....
Reply:1. Combination of algae and fungus

2.viruses reproduce

3. vascular and nonvascular i think

4.filter feed

5.live longer

6. decomposers

7.i have no clue

8.malaria

9....stamen...anther

10.i'm not sure bout that one but the in the aveoli

11.phylum

12.transport water

13.bilateral and no distince head region

14.cocci

15.radial (jellyfish)

16.fungi

17.hec if i know

18.rubrum First is genus second is species an the genus is alwas capitalized

19.nerve cell bodies like in an earthworm

20.i dont know

21.they can be all of them and the oposite

22.algae

23.ecosystem i think

24.sponges (pore bearing)

25. descended from a common acestor

26.neither tendons or ligaments i forgot

27.i think arthropods but i'm not sure

28.i think club fungi i know it can't be ciliates because those are bacteria that move by cilia

29.probably fish

30.fungi!

31.hydrochloric and carbonic. carbon is what causes over heating of the ozone layer

32.echinodermata

33.i'm not sure but maybe environmental factors, because that is wat causes natural selection so the organism best fitted will survuve.

34.i think nonvascular mosses.....I THINK

35.platelets

36.i think the spider.......I know a crayfish has an open circulatory system so which ever organism is closest to the crayfish.

37.cuticle

38.catipiller eating a milkweed

39.water vasscular system.....I THINK

40.none of them. Euglena are autotrophic they are not classified with sporazoa they're not parasitic, i'M confused on that one.

41.positive negative i tihnk

42.idk

43.nothing evolved.....geez.....idk

44.nephrons filter the blood in the kidneys.... I think its the nephrons....

45.plants that lose there leaves.... "deciduous forest"

46.distruction of the ozone layer would stop......

47.amphibia

48.Linnaeus

49.monocots and dicots

50.osteocytes..... "osteo refers bone"

CANT BELIEVE I JUST ANSWERED ALL OF THESE QUESTIONS FOR YOU! you better be appreciative! Just kddin
Reply:CHEATER!
Reply:you have got to be kidding me...

sorry, but no one will take the time answering all of those.
Reply:Do your own homework. We all had to do our own.
Reply:Oh my gosh. Do your reading and you'll find ALL of these answers!