Correct Answer: A) Ileum-Cecum-Colon-Rectum

Explanation

The question is asking about the order in which food passes through the digestive system. The digestive system is responsible for breaking down food into smaller components that can be absorbed by the body. The food passage starts from the mouth and ends at the anus. The options given in the question are different sequences of organs in the digestive system that the food passes through. Option A is the correct answer, which states that the food passes through the Ileum, Cecum, Colon, and Rectum in that order. The Ileum is the last part of the small intestine, which connects to the Cecum, the first part of the large intestine. The food then passes through the Colon, which is the longest part of the large intestine, and finally, it reaches the Rectum, which stores feces before elimination. Option B, C, and D are incorrect because they have a different order of organs in the digestive system than the correct answer. It is crucial to understand the correct order of the digestive system to understand how food is broken down, absorbed, and eliminated from the body. In conclusion, the correct order of food passage in the digestive system is Ileum-Cecum-Colon-Rectum, which is Option A.

Correct Answer: B. vertebrata

Explanation

(a)(i) Birth Control Methods include the following:

(i) Withdrawal method/Coitus - interruptus.

(ii) Intra-uterine device (IUD)/Coil/Loop.

(iii) Rhythm/Safe Period/Calendar method.

(iv) Pills/Oral contraceptive.

(v) Tubal ligation/ female sterilization.

(vi) Vasectomy/male sterilization.

(vii) Diaphragm/Cervical cap.

(viii) Male condom/Sheath/ femidom/femal condom.

(ix) Spermicides/foam.

(x) (Depo-provera) injections.

(xi) Abstinence.

(ii) Importance of family planning to a nation are:

(i) Promotes maternal/child health.

(ii) Prevents population explosion.

(iii) Reduces maternal/infant mortality rate.

(iv) Makes child spacing possible.

(v) Prevents indiscriminate abortion.

(vi) Increases standard of living.

Correct Answer: B. reversible increase in size

Correct Answer: A. Pancreas

Explanation

Lipase and trypsin are enzymes secreted by the pancreas into the duodenum of the small intestine. These enzymes aid in the digestion of food. Salivary glands produce amylase in order to begin digestion in the mouth and the stomach aids in digestion primarily via stomach acid (HCl).

Correct Answer: D. Broad leaves for storage

Correct Answer: D. excretory system of flatworms

Correct Answer: B. Grass, grasshopper, toad, snake, hawk

Explanation

(a)(i)Habitat: Any environment within an ecosystem where an organism lives naturally.

(1) Similar organisms tend to associate and live together

(2) Every habitat is affected by some environmental factor(s) / biotic and abiotic factors

(3) Habitats may be terrestrial e.g. Tropical rain forest/ grassland / Savanna/ desert/ any suitable example, or aquatic, e.g. ocean / lake pond, arboreal trunks / leaf surface / or any suitable example.

(ii)Ecological Niche:Every organism is adapted to a specific place, and play a role in that community e.g. it feeds on some organisms/serves as food for others, it derives / obtains nutrients from its habitat! returns nutrients to it habitat, it is either a producer of a consumer. The sum total of all these roles for any given organism is referred to as its ecological niche.

(b) List of Ecological instruments and their uses

(c) Plants of the Savanna Region: Grass -Acacia, shea butter, date palm, Mosses, Silk cotton, Flambouyant, Baobab, Lophina, Mango, Epiphyte / Orchid, Mushroom, Crotalaria, Parkia clapertonia, Vitex etc.

Animals of the Savanna Region Animal: Antelope, Elephant, Lion, Squirrel, Ants, Termites, Millipede, Centipede, Butterfly/ insects, Scorpions, snakes, Tortoise, Monkey, Baboon, Grasscutters, Giraffe, Zebra, Birds etc.

Correct Answer: B. Sheep