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QUESTION 1

1.1 Various options are provided as possible answers to the following questions. Choose the answer and write only the letter (A-D) next to the question number (1.1.1-1.1.10) in the ANSWER BOOK. For example, 1.1.11 A.

1.1.1 The type of animals that feed primarily on roughage:
A. Pigs
B. Chickens
C. Cattle
D. Ducks

1.1.2 The metabolic energy value of a feed is equal to the gross energy of the feed minus the energy lost in the...
A. manure, urine, and body heat.
B. gases, urine, and body heat.
C. manure, gases, and body heat.
D. manure, urine, and gases.

1.1.3 Diffusion is the process that refers to the movement of molecules or particles...
(i) from a higher to a lower concentration.
(ii) from a lower to a higher concentration.
(iii) along the concentration gradient.
(iv) against the concentration gradient.
Choose the correct combination:
A. (i) and (iv)
B. (i) and (ii)
C. (i) and (iii)
D. (ii) and (iv)

1.1.4 Animals can obtain water from the following water sources:
A. Converted water, drinking water, and water from feeds
B. Metabolic water, drinking water, and water from feeds
C. Essential water, converted water, and drinking water
D. Forced water, drinking water, and water from feeds



Answer :

GinnyAnswer

Final answer:

In biology, diffusion is the movement of molecules along a concentration gradient. The circulatory system in complex animals enables efficient nutrient transport. Single-celled organisms depend on diffusion for essential exchanges.


Explanation:

Diffusion is the process of molecules moving from a higher to a lower concentration, along the concentration gradient. In contrast, the circulatory system in animals with more complex bodies allows for bulk flow to transport nutrients efficiently. Single-celled organisms rely solely on diffusion for the exchange of nutrients and waste products.


Learn more about Diffusion in Biology here:

https://brainly.com/question/495875


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