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Questions in biology

[Answered] 9. Tarun was having difficulty watching things in dim light. The doctor tested his eyesight, and he prescribed a particular vitamin supplement. He advised him to include a few food items in his diet regularly. Which component of food is he lacking in his diet? a) vitamin A b) vitamin C c) vitamin B d) vitamin D 10. Name the vitamin present in orange and lemon. a) vitamin A b) vitamin C c) vitamin B d) vitamin D

[Answered] In the dihybrid cross, what fraction of the parents had black fur and black eyes? What about the offspring?

[Answered] A diseased cell is no longer able to produce proteins. Which cell structure is most likely malfunctioning? A. cell membrane B. cytoplasm C. ribosome D. mitochondrion

[Answered] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Answered] Which of the following best explains why air is considered a natural resource? A. Air is expensive to produce and keep clean. B. Air is a raw material for biological processes supplied by the Earth. C. Air can be processed to generate expensive chemicals. D. None of the above

[Answered] Which holds the majority of CO2? A. vegetation B. animals C. phytoplankton D. seawater E. the atmosphere

[Answered] Which is most likely to change with new discoveries and technologies? A. classification of organisms B. kingdom of an organism C. order of the taxonomic levels D. use of binomial nomenclature

[Answered] Which type of growth occurs when population grows? A. decreasing B. exponential C. linear D. logistic

[Answered] Which of the following pair of cell organelles does not have DNA molecules? A. Nuclear Envelope and Mitochondria B. Lysosome and Vacuoles C. Chloroplast and Vacuoles D. Mitochondria and Lysosome

[Answered] Ozalla village has 1000 persons made up of 650 dominant homozygotes, 100 heterozygotes, and 250 recessive homozygotes. Is the population governed by Hardy-Weinberg law? List the conditions that must be kept constant for the Hardy-Weinberg principle to be operational in the village.