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In plants carrying out CAM photosynthesis, which of the following occurs during the day?

Which of the following structures is part of bark?

The conducting cells in _______ are dead at maturity

During cytokinesis in plant cells, the new cell wall between the daughter cells forms through _________.

Stomata open and close by _______

In what way are market orders superior to limit orders?

A trader buys a call option with a strike price of $50. The price paid for the option is $5. If the stock price at expiration is $60, what is the net profit / (loss)?

In practice except for when price-weighting, when we construct an index, we should set the index level to:

Suppose that you just short sold 100 shares of ABC stock for $50 per share. The initial margin requirement is 60%, which you cover by pledging T-bills as collateral. If the price of the stock falls to $41 per share, what return did you earn? Ignore the interest earned on T-bills.

You bought 40 shares of a $60 stock on margin one year ago. Today, the stock is worth $73 per share. You initially posted 75% margin. Ignoring any interest due and margin calls, calculate your rate of return.