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Questions in biology

[Done] Mark as true or false: 1. All living things grow up to be similar to their parents. 2. Most plants begin their life from flowers. 3. Seeds of different plants have the same size, shape, and colour. 4. In animals, young ones always resemble their parents when they are born. 5. Many animals lay eggs, which then hatch into young animals.

[Done] Use the Punnett Square below to answer the question. YY or Yy = yellow flowers yy = white flowers GG or Gg = green seeds gg = black seeds \begin{tabular}{|l|l|l|l|l|} \hline & YG & Yg & yG & yg \\ \hline YG & YYGG & YYGg & YyGG & YyGg \\ \hline Yg & YYGg & YYgg & YyGg & Yygg \\ \hline yG & YyGG & YyGg & yyGG & yyGg \\ \hline yg & YyGg & Yygg & yyGg & yygg \\ \hline \end{tabular} What percent of offspring have the YYGG genotype? A. $25 \%$ B. $6.3 \%$ C. $18.7 \%

[Done] Match the following. Column 'A' 1. Leaves of small plants 2. Flesh of dead animals 3. Corn, gram, oilcake 4. Grains, worms, fishmeal 5. Fruits, nuts, green and red chillies Column 'B' (a) vulture, raccoon (b) cow, buffalo, horse (c) ducks, hens (d) parrot (e) goat, sheep

[Done] The percentage DNA similarities between species could be used to show the following: (i) Similarities in protein synthesis (ii) Evidence for evolution (iii) Common ancestry Which combination shows the CORRECT application of the use of similarities between species? A. (i), (ii), and (iii) B. Only (i) and (ii) C. Only (ii) and (iii) D. Only (i) and (iii)

[Done] Each organ on the left belongs to the digestive or excretory system. Match each organ to its correct function on the right. 1. Esophagus - moves food from the back of the mouth to the stomach 2. Stomach - uses muscle contractions and acid to physically digest food 3. Small intestine - breaks down food with chemical digestion, absorbs nutrients and passes them to the blood 4. Large intestine - absorbs water from digested food 5. Rectum - stores feces until it is expelled from the body 6. Liver - produces bile to help fats absorb into the bloodstream 7. Gall bladder - stores bile until it is needed by the body 8. Pancreas - produces a juice containing enzymes and bicarbonate and releases it into the small intestine 9. Kidneys - clean and filter impurities from the blood using tiny structures called nephrons 10. Urinary bladder - stores urine until it is expelled from the body 11. Skin - releases waste products and water when you sweat or perspire 12. Lungs - release carbon dioxide and water each time you exhale

[Done] What is the difference between a hypothesis and a theory? A. A hypothesis is a description of events, but a theory explains why the events took place. B. A theory is a possible explanation of a natural event that has not been tested. A hypothesis is a question that cannot be answered through scientific methods. C. A hypothesis is based on observation of a single event. A theory has been verified by many observations by many scientists. D. A hypothesis has been tested, but a theory cannot be tested.

[Done] What happens if there is too much digestive enzyme in the lysosome? A. It can digest food faster. B. It will digest itself. C. It will produce energy for the cell. D. It will grow bigger.

[Done] Why is rising blood glucose considered negative feedback in this situation? A) This is actually an example of positive feedback because blood glucose rises to return to the set point. B) Because having low blood sugar is bad and anything out of the set range has negative consequences for the body. C) Because when glucose returns to the set point the initial stimulus goes away and the control center stops sending out the signal.

[Done] I. Fill in the blanks: i. Human beings speak many ______. ii. ______ walk in upright position. iii. ______ breathe through their spiracles. iv. Plants prepare food by a process called ______. v. Big and tall plants are called ______. II. State whether the following statements are true or false: i. Non-living things can breathe. ii. The thick stem of tree is called its trunk. iii. A rat lives in a hole. iv. Plants cannot feel the changes around them. v. Hibiscus plant is an example of shrub. III. Give two examples for the following: i. Cold blooded animals ii. Insects iii. Annual plants IV. Define the following: i. Natural things ii. Terrestrial plants

[Done] What type of sensory information do muscle spindles transmit? Choose the correct option. A. Changes in angle of joint B. Changes in muscle length C. Changes in muscle strength D. Changes in muscle tension Which of the following describes the function and location of Golgi tendon organs? Choose the correct answer. A. Monitor muscle tension, situated in series with muscle fibers B. Monitor muscle length, situated in series with muscle fibers C. Monitor muscle length, situated in parallel with muscle fibers D. Monitor muscle tension, situated in parallel with muscle fibers True or false? An alpha motor neuron and all the muscle fibers innervated by it make up the elementary component of motor control called the motor unit. Select one: True False