Question

https://www.usatestprep.com/modules/video/video_player.php?testid=558&assignment_id=28022452&strand=2930&element=19158&vid=143&
((Don't know if the video will work. Sorry if it don't.)
1) As quoted in the video, plants, unlike animals, cannot ___.
A. Move
B. Feed

2) Desert plants have needles instead of leaves to help prevent ______ loss and discourage animals from eating the plants.
A. Energy
B. Water

3) As mentioned in the video, horseradish is spicy because the radish plant stores ________ in its roots for protection.
A. Water
B. Toxins
C. Peppers

Answer 1

 1. Plants, unlike animals, cannot move.  Living things move primarily to replenish their energy and find security by hiding from predators. Plants are able to do both quite fine while stationary as they are capable of mobilizing their inherent resources, plus those available from soil with the help of sunlight to make food                                                                                                                                                                    2. Desert plants have needles instead of leaves to help prevent water loss and discourage animals from eating the plants. Desert plants tend to look very different from plants native to other regions. They are often swollen, spiny, and have tiny leaves that are rarely bright green. Their remarkable adaptations to the challenges of the desert climate.                                                                                                                                                                                                                                              3. As mentioned in the video; horseradish is spicy because the radish plants stores toxins in its roots for protection. The pungency of horseradish is essentially a defense mechanism against herbivores. Plants do not have legs, therefore, they have evolved to protect themselves; for example the defensive poison by horseradish gives it's hallmark pungency. 

Answer 2

Answer:

The correct answers are:

Question 1. option A. "Move".

Question 2. option B. "Water".

Question 3. option B. "Toxins".

Explanation:

Question 1. Plants unlike animals, cannot move. Plants are organisms that adapted to produce its energy from carbon dioxide and sunlight by photosynthesis. Therefore, plants do not need to move to gather its energy unlike animals that function as consumers in the food chain.

Question 2. Desert plants have developed needles to prevent losing water and discourage animals to eat them. Cactus and other desert plants use needle as defense from animals, and also to prevent losing water from the extreme high temperatures. Needles are covered with a waxy coating that prevents transpiration.

Question 3. Horseradish is spicy because it contains isothiocyanate, a toxin that when oxidized by air and saliva, it gets the sense of spiciness we experience in our tongues. Horseradish stores isothiocyanate in its roots and is it used for protection against predators.