Biology, 09.10.2019 17:10 ahmedeldyame
During nuclear decay, a new isotope is created. how is the nucleus of the new isotope different from the parent if the parent isotope has undergone beta decay? a) the atomic number increases by 4 and the mass increases by 2. b) the atomic number increases by 2 and the mass decreases by 4. c) the atomic number increases by 1 and the mass remains the same. d) the atomic number remains the same and the mass decreases by 1.
Answers: 1
Biology, 22.06.2019 00:40
World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s
Answers: 3
Biology, 22.06.2019 02:30
Plz ! a scientist wants to produce a cow that makes a particular human protein in itβs milk the desired protein causes blood to clot and can be used to treat hemophilia (a blood clotting disorder). which of the following would be best for the scientist to use? a. genetic crosses. b. cloning. c. selective breeding. d. genetic engineering.
Answers: 1
Biology, 22.06.2019 03:00
Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.
Answers: 2
Biology, 22.06.2019 10:00
Which statement is true for bacteria a. bacteria have complex internal structures b. all bacteria are spiral in shape c. all bacteria cause disease in animals d. bacteria break down some foods
Answers: 1
During nuclear decay, a new isotope is created. how is the nucleus of the new isotope different from...
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