Posted on 02 June 2011. Tags: Amphibian, charles darwin, chordate classification, Essay, life on earth, mammal, natural selection, organ system, Plant, protist, segmented worm, sexual reproduction, Someone, use, vascular plant
in science we have to write a final essay describing life on earth. here are the directions:
Write an essay describing life on earth. Which are the first organisms to appear? How are later organisms able to evolve? In what order did they appear? How are they different? Please use the following words in your essay
Algae
Amphibian
Angiosperm
Annelid (Segmented worm)
Arthropod
Asexual reproduction
Bacteria
Biome
Bird
Cell
Charles Darwin
Chordate
Classification
Cnidarian
Cold Blooded
Competition
Consumer
Echinoderm
Environment
Evolution
Fish
Flatworm
Gene
Gymnosperm
Insect
Invertebrate
Mammal
Molecule
Mollusk
Moneran
Natural selection
Niche
Nonvascular plant
Nucleus
Ocean
Organ
Organism
Organ system
Population
Producer
Protist
Reptile
Roundworm
Sexual reproduction
Species
Tissue
Vascular plant
Vertebrate
Virus
Warm blooded
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Posted on 18 October 2010. Tags: body, body shape, bushy tails, common ancestor, convergent evolution, divergent evolution, evolution, flying phalanger, flying squirrel, hawaiian honey, mammal, placental mammal, pouched mammal, selection, shape
1. Hawaiian honey-keepers are a group of birds with similar body shape and size. However, they very greatly in color an beak shape. each species occupies its own niche and is adapted to food available in its niche. The evolution from a common ancestor to a variety of species is an example of:
a. divergent evolution
b. convergent evolution
c. artificial selection
d. inbreeding
2. The flying squirrel of North America closely resembles the flying phalanger of Australia. they are similar is size and have long, bushy tails and skin folds that allow them to glide through the air. The squirrel is a placental mammal while the phalanger is pouched mammal. Their resemblances, even though genetically and geographically separated by huge distances, can best be explained by:
a. divergent evolution
b. convergent evolution
c. artificial selection
d. inbreeding
best answer gets 10 points. if you do not want to help then please do not comment.
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