If a plant is kept in the dark for several days, what process is directly affected and why?, A. Growth, because light strengthens roots. , B. Respiration, because it stops without sunlight., C. Germination, because water cannot be absorbed. , D. Photosynthesis, because it requires light to make food., Which of the following is the correct order of the major parts of the digestive tract?, A. Esophagus → Mouth → Small Intestine → Stomach → Large Intestine, B. Mouth → Esophagus → Stomach → Large Intestine → Small Intestine, C. Mouth → Esophagus → Stomach → Small Intestine → Large Intestine, D. Stomach → Mouth → Small Intestine → Large Intestine → Esophagus, How do the roles of digestion and absorption differ in the processing of food in the body?, A. Both happen only in the stomach., B. Digestion occurs after absorption., C. Absorption breaks food, digestion takes nutrients into the blood., D. Digestion breaks down food, absorption takes nutrients into the blood., How should the learner respond to the claim that digestion is unaffected by damage to the small intestine?, A. It can still digest proteins, so that is enough., B. It depends on the size of the small intestine., C. Digestion happens mostly in the mouth, so it does not matter., D. That is incorrect. Without the small intestine, nutrients cannot be absorbed properly., How do the digestive and the excretory systems interact to support body function?, A. By producing hormones for growth, B. By carrying messages from the brain, C. By exchanging gases with the environment, D. By breaking down food and removing waste products, Which response MOST effectively disproves the claim that digestion ends in the stomach?, A. The stomach only breaks down food, it is not the final stage., B. Digestion begins in the mouth but continues beyond the stomach., C. The stomach starts digestion, but nutrient absorption happens later., D. Digestion continues in the small intestine; nutrients are absorbed and waste is excreted., After a plant is watered, what process shows how its organs work together to transport the water?, A. Water stays only in the roots., B. The flower stores all the water for later use., C. The stem carries water from roots to leaves., D. The leaf absorbs water directly from the air., How do the roots, stem, and leaves work together in the transport system?, A. The leaves store minerals and send them to the roots., B. Roots and leaves store food while the stem absorbs water., C. The stem and leaves absorb sunlight while roots make food., D. Roots absorb water, the stem carries it, and the leaves use it to make food., Which explanation BEST supports the idea that plant organs work together as a transport system?, A. The roots store sunlight for the leaves., B. The leaf sends nutrients down to the roots., C. The stem keeps the plant standing straight., D. Roots take in water, stem transports it, leaf makes food., Which aspect can a researcher analyze by comparing the traits of a nucleus-lacking microorganism using both the three-domain and six-kingdom classification systems?  , A. Traits help classify its domain and kingdom, B. Whether the organism is prokaryotic or eukaryotic, C. Whether the organism belongs to a species or genus , D. If it can be classified using only physical appearance.

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