9th Class Biology English Medium Online Test For Full Book With Answers

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9th Class Biology English Medium Online Test For Full Book

Sr. # Questions Answers Choice
1 Which of the following best describes the mean of a data set. The most frequent occuring value The sum of all values divided by the number of values The middle value when data is ordered The difference between the highest and lowest values
2 In biostatictics which method is used to predict future outcom based on current data. Designing experiments Predicting outcomes Interpreting result Analysing data
3 What is the primary purpose of biostatistics. To analyse finacncial data To aply sttical methods to biological sciecnes To design engineering models To study historical events
4 According to pressur e-flow theory one of the following is not a sink Leaves Fruits Root Stem tubers
5 Pressur flow mechanism is about Transporation Translocation of food Opening of stomata Transport of water
6 Waht drives the translocation of organic solutes in plants. Differences in stem length Diffrences in root structure Difference in leaf size Difference in sugar concentration
7 What is the role of companion cells in the translocation process. They stor excess solutes in the phloem they assist in the absorption of water by roots They actively transport sugas into the phloem's sieve tube elements The help regulate water potential in the xylem
8 The sugar moves through pholem is mostly in the form of. Sucrose Lactose Maltose Glouse
9 Which of the following are ways hydrophyes adapt to osmotic condition Developing deep roots Having thick cuticle Producing large leaves Developing sunken stomata
10 Which of the followign are ways hydrophytes adapt to osmotic conditions. Developing deep roots Developing sunken stomata Producing large leaves Having thick cuticle
11 All of the following are the adaptation of exrophytes except. Thick cuticle Sunken stomata Deep root system Large number of stomata
12 The plants, which live completely or partially submerged in fresh water are. Hydrophyte Halophytes Xerophytes Mesophytes
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