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Questions in biology

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

[Homework Help] What does the term motile mean? Multiple Choice A. magnification B. movable C. solid D. fixed

[Homework Help] When comparing salmonellosis and shigellosis, based on the relative infectious doses of the pathogens involved, ______. Multiple choice question. A. fewer Salmonella cells are required to cause a salmonellosis infection B. both diseases are equal in terms of their ability to be spread through a population C. salmonellosis does not spread as easily through a population D. more Shigella cells are required to cause a shigellosis infection E. shigellosis does not spread as easily through a population

[Homework Help] Are recipes for making proteins?

[Homework Help] Which one of the following would most easily pass through a cell membrane? A. Carbon dioxide molecule B. Large glycoprotein C. Chloride ion D. Hydrogen ion

[Homework Help] _____ is defined as the cell's nucleus making an exact copy of all the chromosomes and splitting into two new cells. A. Meiosis B. Homozygous C. Heterozygous D. Phenotype E. Genes F. Genotype G. Mitosis

[Homework Help] Where is the majority of the cell's deoxyribonucleic acid (DNA) found? A. central vacuole B. nucleus C. mitochondria D. golgi apparatus

[Homework Help] Given the table, which of the following amino acid sequences is coded by UCA, UGG, UCU, and GUA? A. Serine, Threonine, Arginine, Aspartic Acid B. Serine, Tryptophan, Serine, Valine C. Aspartic Acid, Valine, Leucine, Asparagine D. Leucine, Histidine, Glutamic Acid, Leucine

[Homework Help] Which of the following metabolic processes can occur without a net influx of energy from some other process? A. [tex]$6 CO _2+6 H _2 O \rightarrow C _6 H _{12} O _6+6 O _2$[/tex] B. [tex]$C _6 H _{12} O _6+6 O _2 \rightarrow 6 CO _2+6 H _2 O$[/tex] C. [tex]$ADP + P _{ i } \rightarrow ATP + H _2 O$[/tex] D. Amino acids [tex]$\rightarrow$[/tex] Protein

[Homework Help] Brain cells shrink as people get older. A. Get smaller B. Stay the same C. Change a lot D. Get larger