The major Canadian geological deposit that contains numerous Cambrian animals is the

A. Stomatolite formation.

B. Ordovician coast.

C. hydrothermal clays.

D. Gondwana formation.

E. Burgess shale.


E. Burgess shale.

Biology & Microbiology

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Which of the following statements about plant macronutrients is/are true? Check all that apply.  

_____  They approach or exceed 1% of a healthy plant's dry weight. _____  They reduce the need for CO2 during photosynthesis. _____  A deficiency in any one can have severe effects on a plant's growth. _____  They can have important implications for human nutrition. _____  The ability of the plants to take up minerals is affected by soil pH.

Biology & Microbiology

What is the part of the kidney where urine is formed?

A. The blood vessels B. The liver C. The nephron D. The ureter

Biology & Microbiology

Under the influence of antidiuretic hormone, you would expect to see an increase in ________

A) plasma volume B) blood pressure C) urine volume D) sodium reabsorption

Biology & Microbiology

The very first vertebrates were

A. fishes with jaws. B. fishes without jaws. C. cartilaginous fish. D. bony fish.

Biology & Microbiology