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