Read the following sentences carefully a...

Read the following sentences carefully and choose the option having correct statements,
a. Units of life called spores were transferred to different planets including earth according to theory of spontaneous generation.
b. Oparin and Haldane proposed that life arises from non-living organic molecules by chemical evolution.
c. Psilophyton can be considered as an ancestor of conifers.
d. Coelacanth possibly evolved into the first amphibians.

(a) a & b only

(b) b & c only

(d) a, b, c and d

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Consider the following three statements and select the correct option stating which one is true (T) and which one is false (F). (i) Oparin of Russia and Haldane of England proposed that the first form of life could have come from pre-existing nonliving organic molecules (e.g, RNA, protein etc.) and that formation of life was preceded by chemical evolution. (ii) Based on observations made during a sea voyage around the world. Charles Darwin concluded that existing living forms share similarities to varying degrees only among themselves. (iii) Evolution by natural selection must have started when cellular forms of life with different metabolic capability originated on Earth.

Read the following statements carefully. A. Studies suggest that first organisms that invaded land were plants. br B. Saltations are large mutations and directionless while Darwinian variations are small and directional. br C. Sauropsids were common ancestors of therapsids and thecodonts. br D. Homo habilis was the first hominid with brain capacity ranging between 650-800 cc. Choose the correct option w.r.t. True (T) and False (F) statements

AAKASH INSTITUTE ENGLISH-TEST 2-EXERCISE

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