1) A new type of organism has been discovered. As one of the top biologists in t

Question

1) A new type of organism has been discovered. As one of the top biologists in the world, you are asked to classify it. After much study, you realize that this organism consists of a single cell. It has many diploid nuclei and appears to be terrestrial. While studying its life cycle, you notice that it produces sporangia and flagellated cells and can grow to be extremely large. Based on this information name the type of organism. For each characteristic, explain how you reached your conclusion.

2)

Answer each of the following questions with one sentence. (6 marks)

a. What is the major evolutionary innovation associated with angiosperms that has allowed them to diversify and become the dominant form of plant life on Earth?

b. Why is the Devonian period known as the “Age of Fishes”?

c. Why do scientists believe that multicellular eukaryotes did not diversify until the late Precambrian?

Explanation / Answer

[I am going to answer question number 2. Thanks]

a. The major evolutionary innovation associated with angiosperms that has allowed them to diversify and become the dominant form of plant life on Earth is their ability of reproduction using fruits and flowers, which then produces a protected seed.

b. The Devonian period known as the “Age of Fishes” because at that time only marine or water organisms thrived immensely. So, earth covered with water, fishes show spectacular adapation and diversification.

c. Scientists believe that multicellular eukaryotes did not diversify until the late Precambrian because there is no fossil record till date.

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