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 Blood received from each kidney is ……. 50 80% 10% 20% 2 / 50 Bile: Liver Large amount of hypotonic urine contain little salt Kidney Body fluid isotonic to external environment 3 / 50 What is the role of progesterone hormone in women? Follicle development Female secondary sex characteristics Spermatogenesis Development of the uterine lining 4 / 50 Homologous structures: Have same functions but different structures Have same structures but different functions None of the above Have different structures and function 5 / 50 What is the name of covering the central nervous system? Spinal cord Skull Meninges None of these 6 / 50 Which of the followings is characteristic of parasitism? Two organisms nourish each other; both benefit Two organisms feed side by side from the same food Two organisms live together and neither is harmed One organism kills and consumes another 7 / 50 The term Auxin was coined by: Walter 1928 T-yabuta 1970 F.W. Went 1926 Hoshimata 1910 8 / 50 The largest desert in the world is: Thal Thar Gobi Sahara 9 / 50 During emergencies, the “fight-or-flight” response: is caused by hormone secretions in the adrenal medulla is stimulated by cortisol Decrease the heartrate is the result of aldosterone causing faster blood flow 10 / 50 How many calories are in fat……………..? 6 Calories 8 Calories 4 Calories 9 Calories 11 / 50 A series of mitotic divisions which take place in a zygote are called: (A) Fertilization Gastrulation Cleavage Growth 12 / 50 How many bones are present in human ears? 8 3 6 9 13 / 50 Which of the following gasses is released during the process of respiration? Oxygen None of the above Hydrogen Carbon dioxide 14 / 50 Which of the following statements is true about Unio? One-chambered heart Two-chambered heart Four-chambered heart Three-chambered heart 15 / 50 The mechanism of evolution called “natural selection” was proposed by: Darwin Cuvier Mendel Lamarck 16 / 50 How many senses does a human have? 5 9 4 6 17 / 50 Long term regulations of activities are brought in plants by? Salt Hormones Minerals Organs 18 / 50 The theory of natural selection says: All living organisms formed from ancestors All living organisms formed by divine All living organisms formed spontaneously None of the above 19 / 50 Vegetative propagation does not involve: Flower parts Stem parts Leaf parts Root parts 20 / 50 Muscles are attached to bones by: Tendons Ligaments Synovial membrane None 21 / 50 Planaria has: Undifferentiated cells for regeneration Special cells for regeneration None of the above Differentiated cells for regeneration 22 / 50 Nutrition deficiency Scurvy Congenital diseases Population explosion Alzheimer 23 / 50 Which of the followings is mismatched? (A) Oxytocin- hypothalamus Glucagon - pancrease Insulin -. pancreas Thyroid hormone- pituitary gland 24 / 50 Carnivores represent what trophic level? Producers Primary consumers Decomposers Secondary consumers 25 / 50 The forest of the world have been reduced by: 30% 60% 44% 54% 26 / 50 According to endosymbiotic theory mitochondria is: Cellular body which produce energy Aerobic bacteria which produces energy Photosynthetic bacteria undergoes photosynthesis Anaerobic bacteria which produces energy 27 / 50 Pachytene is a First stage of prophase in meiosis Third stage of prophase in meiosis Second stage of prophase in meiosis Fourth stage of prophase in meiosis 28 / 50 Are fungi predominantly diploid or haploid? Diploid Haploid None Of these 29 / 50 Which structure is formed as a result of sexual reproduction in Zygomycetes? Basidiocarp Sporangiophore Ascocarp Zygospore 30 / 50 In which type of fungi asexual reproduction is absent : Basidiomycetes Deuteromycetes Zygomycetes Ascomycetes 31 / 50 An adult human endoskeleton consists of: 363 bones 639 bones Number varies by the individual 206 bones 32 / 50 Which one doesn't belong to microtubules? Centrioles Chloroplast Cilia Flagella 33 / 50 Deserts generally occur in region where annual rain fall is less than: 15-20 cm 250-270 cm 25-50 cm 5-10 cm 34 / 50 Plant need…………..type of nutrient light for photosynthesis? Four Six Three Two 35 / 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 Went’s theorem Fischer’s theorem Hardy-Weinberg theorem 36 / 50 Grassland in tropic climates have woody trees and are called Savanna Pampas Prairies Velt 37 / 50 Which of the followings are producers? Grasshoppers Bacteria Algae Termites 38 / 50 In which phase does the growth of bacteria take place? Log phase Death phase Stationary phase Lag phase 39 / 50 The color of xanthophyll is: Orange Yellow Green White 40 / 50 Albumin is the most important protein in blood serum. It is produced by Heart Liver Lungs Endocrine glands 41 / 50 What is the amount of blood contain in the human body? 7-8 liters 5-6 liters 4-5 liters 6-7 liters 42 / 50 Which of the following is not aging? Loss of hair pigment Dryness of skin Increase of number of cells Increase of body weight 43 / 50 Nitrogen makes following percent of gases in atmosphere: 80% 20% 78% 0.03% 44 / 50 When the kinetochore fibers contract and microtubules elongate, the cell is present in which stage of mitosis? Anaphase Telophase Leptophase Prophase 45 / 50 How many ribs are present in the human body? 24 12 44 33 46 / 50 Glands in the endocrine system: Release hormones into the bloodstream or the fluid around cells None of the above Produce hormones that are secreted into the digestive tract Release hormones as rapidly as nerve impulses are transmitted 47 / 50 The main objection on Lamarckism was that: It cannot pass from parent to offspring It can pass from parent to offspring It provides raw material for evolution A character inherited by an organism 48 / 50 The total amount of energy that is converted to organic compounds in a given area per unit of time is called the: Gross primary productivity Transpiration Net primary productivity Biomass 49 / 50 The body’s normal metabolic rate is regulated by: Prolactin Metaboloxin Thyroid hormones Epinephrine 50 / 50 Fatal heart attacks in a young is also done in cancer patients a condition in which liver cells lack receptor for removing cholesterol Kills the cancer cells High level of blood cholesterol Your score is 0% Restart quiz
