Biology Test 2 Please don't use any search browser to find the answer. Just do it yourself so you can measure your knowledge power. Best of Luck! Please! Enter Password 1 / 50 The term Auxin was coined by: Hoshimata 1910 F.W. Went 1926 T-yabuta 1970 Walter 1928 2 / 50 The body’s normal metabolic rate is regulated by: Thyroid hormones Epinephrine Prolactin Metaboloxin 3 / 50 Which one doesn't belong to microtubules? Centrioles Flagella Chloroplast Cilia 4 / 50 Albumin is the most important protein in blood serum. It is produced by Lungs Liver Heart Endocrine glands 5 / 50 Are fungi predominantly diploid or haploid? Haploid Diploid None Of these 6 / 50 Bile: Body fluid isotonic to external environment Kidney Liver Large amount of hypotonic urine contain little salt 7 / 50 In which phase does the growth of bacteria take place? Lag phase Stationary phase Death phase Log phase 8 / 50 Planaria has: None of the above Differentiated cells for regeneration Special cells for regeneration Undifferentiated cells for regeneration 9 / 50 What is the name of covering the central nervous system? None of these Meninges Spinal cord Skull 10 / 50 Fatal heart attacks in a young is also done in cancer patients High level of blood cholesterol a condition in which liver cells lack receptor for removing cholesterol Kills the cancer cells 11 / 50 The mechanism of evolution called “natural selection” was proposed by: Mendel Lamarck Darwin Cuvier 12 / 50 Which structure is formed as a result of sexual reproduction in Zygomycetes? Sporangiophore Basidiocarp Zygospore Ascocarp 13 / 50 When the kinetochore fibers contract and microtubules elongate, the cell is present in which stage of mitosis? Leptophase Prophase Anaphase Telophase 14 / 50 Which of the followings is mismatched? (A) Oxytocin- hypothalamus Thyroid hormone- pituitary gland Insulin -. pancreas Glucagon - pancrease 15 / 50 Glands in the endocrine system: Produce hormones that are secreted into the digestive tract Release hormones as rapidly as nerve impulses are transmitted None of the above Release hormones into the bloodstream or the fluid around cells 16 / 50 In which type of fungi asexual reproduction is absent : Basidiomycetes Zygomycetes Deuteromycetes Ascomycetes 17 / 50 Blood received from each kidney is ……. 20% 50 80% 10% 18 / 50 The main objection on Lamarckism was that: It can pass from parent to offspring It cannot pass from parent to offspring It provides raw material for evolution A character inherited by an organism 19 / 50 Vegetative propagation does not involve: Stem parts Leaf parts Root parts Flower parts 20 / 50 The largest desert in the world is: Gobi Sahara Thar Thal 21 / 50 According to endosymbiotic theory mitochondria is: Photosynthetic bacteria undergoes photosynthesis Cellular body which produce energy Aerobic bacteria which produces energy Anaerobic bacteria which produces energy 22 / 50 Which of the following gasses is released during the process of respiration? Carbon dioxide Hydrogen None of the above Oxygen 23 / 50 Muscles are attached to bones by: None Ligaments Tendons Synovial membrane 24 / 50 Pachytene is a Second stage of prophase in meiosis Fourth stage of prophase in meiosis Third stage of prophase in meiosis First stage of prophase in meiosis 25 / 50 During emergencies, the “fight-or-flight” response: is stimulated by cortisol is caused by hormone secretions in the adrenal medulla is the result of aldosterone causing faster blood flow Decrease the heartrate 26 / 50 Carnivores represent what trophic level? Decomposers Secondary consumers Producers Primary consumers 27 / 50 Nutrition deficiency Scurvy Population explosion Congenital diseases Alzheimer 28 / 50 Homologous structures: None of the above Have same structures but different functions Have different structures and function Have same functions but different structures 29 / 50 Long term regulations of activities are brought in plants by? Hormones Organs Minerals Salt 30 / 50 Grassland in tropic climates have woody trees and are called Savanna Velt Pampas Prairies 31 / 50 What is the amount of blood contain in the human body? 5-6 liters 4-5 liters 7-8 liters 6-7 liters 32 / 50 How many bones are present in human ears? 3 8 9 6 33 / 50 Nitrogen makes following percent of gases in atmosphere: 78% 80% 0.03% 20% 34 / 50 Plant need…………..type of nutrient light for photosynthesis? Six Two Three Four 35 / 50 A series of mitotic divisions which take place in a zygote are called: Growth (A) Fertilization Gastrulation Cleavage 36 / 50 Which of the following is not aging? Dryness of skin Loss of hair pigment Increase of body weight Increase of number of cells 37 / 50 The total amount of energy that is converted to organic compounds in a given area per unit of time is called the: Net primary productivity Gross primary productivity Biomass Transpiration 38 / 50 Deserts generally occur in region where annual rain fall is less than: 25-50 cm 250-270 cm 5-10 cm 15-20 cm 39 / 50 How many calories are in fat……………..? 4 Calories 8 Calories 6 Calories 9 Calories 40 / 50 The forest of the world have been reduced by: 30% 44% 54% 60% 41 / 50 How many senses does a human have? 4 6 9 5 42 / 50 What is the role of progesterone hormone in women? Female secondary sex characteristics Spermatogenesis Follicle development Development of the uterine lining 43 / 50 The color of xanthophyll is: Green Orange White Yellow 44 / 50 Which of the followings is characteristic of parasitism? Two organisms live together and neither is harmed Two organisms nourish each other; both benefit One organism kills and consumes another Two organisms feed side by side from the same food 45 / 50 How many ribs are present in the human body? 44 33 24 12 46 / 50 An adult human endoskeleton consists of: Number varies by the individual 639 bones 363 bones 206 bones 47 / 50 Which of the following statements is true about Unio? Three-chambered heart One-chambered heart Two-chambered heart Four-chambered heart 48 / 50 Which of the followings are producers? Algae Grasshoppers Bacteria Termites 49 / 50 The shuffling of alleles due to meiosis and random fertilization having no effect on over all genetic structure of a population signifies: Went’s theorem Binomial theorem Fischer’s theorem Hardy-Weinberg theorem 50 / 50 The theory of natural selection says: All living organisms formed by divine All living organisms formed from ancestors All living organisms formed spontaneously None of the above Your score is 0% Restart quiz
