"The Process of Biological Evolution" PPT courseware on the evolution of living things

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"The Process of Biological Evolution" PPT courseware on the evolution of living things

Evidence of biological evolution:

1. Fossils (direct evidence)

①The evolution process of horses: (the evolution process of the same species)

②The evolutionary process of birds (one type of organism evolves into another type of organism):

Some kind of reptile---Liaoxi bird---Archaeopteryx---Confucius bird

Conclusion: The fossils of simpler and lower organisms always appear in the older strata, and the fossils of more complex and higher organisms always appear in the more recently formed strata. This shows that living things develop through evolution.

Self-test (1)

1. The direct evidence of biological evolution is ( )

A: Creatures living now B: Creatures living in ancient times C: Biological "evolutionary tree" D: Fossils of ancient creatures

2. The fundamental reason why biological fossils can prove the evolution of organisms is ( )

A: Fossils are the remains and relics of ancient creatures preserved in the earth’s strata.

B: Fossils were formed over a long period of geological time

C: Fossils of various organisms appear in a certain order in the stratum.

D: Fossils are the research object of paleontologists

3． It is known that the fossils of species A, which are closely related, appear in the strata much later than the fossils of species B. It can be seen from this that ( )

A: There are more species A than species B

B: Species A has a more complex structure than species B

C: Species A must have evolved from species B

D: Species B must evolve from species A

4. A certain fossil team excavated many fossils in three different strata A, B, and C. The records are as follows: stratum A has dinosaur eggs, Archeopteryx, and turtles; stratum B has horses, ivories, and rhinos; stratum C has three leaves. Insects, squid, coral. The order of these strata from farthest to most recent is ()

A: A, C, B; B: B, A, C; C: B, C, A; D: C, A and B

5． Based on the Archaeopteryx fossils, we can determine which two organisms are closely related ()

A: Birds and mammals B: Birds and reptiles

C: Birds and amphibians D: Birds and fish

Development Law:

Living things follow the laws of development from scratch, from low to high, from simple to complex, from aquatic to terrestrial.

Self-test (2)

1. Among the following types of plants, the one that first appeared in the primitive ocean was ( )

A: Primitive algae B: Primitive bryophytes C: Primitive gymnosperms D: Primitive ferns

2. From the perspective of evolution from lower to higher, which of the following is the correct order ( )

A: Algae, bryophytes, ferns, seed plants

B: Bryophytes, ferns, algae, seed plants

C: ferns, bryophytes, algae, seed plants

D: Algae, seed plants, bryophytes, seed plants

3. Which of the following types of plants have completely lost their dependence on water for their reproductive processes ( )

A: Gymnosperms, angiosperms B: Bryophytes, ferns

C: Bryophytes, angiosperms D: Gymnosperms, ferns

4. The general process of animal evolution is ( )

①Invertebrates ②Primitive single-celled animals ③Vertebrates

A: ① ② ③ B: ① ③ ② C: ② ① ③ D: ③ ① ②

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Update Time: 2024-11-20

This template belongs to biology courseware People's Education Edition Biology for Grade 8, Volume 2 industry PPT template

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