A man who was blood group A and a woman who was blood group B had four children, each with a different blood group A, B, AB, and O.
Which type of variation does this demonstrate?
A. continuous, environmental and genetic
B. continuous and genetic only
C. discontinuous, environmental and genetic
D. discontinuous and genetic only
Solved
Show answers
More tips
- C Construction and repair How to Choose the Best Underfloor Heating?...
- C Computers and Internet How to Get Rid of Windows Genuine Check?...
- C Computers and Internet War of Social Media: Which Platform is the Leader?...
- H Health and Medicine How to Treat the Flu: A Comprehensive Guide...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
Answers on questions: Biology
- B Biology Which are examples of active transport? Select all that apply. exocytosis phagocytosis diffusion pinocytosis...
- B Biology Why do earthquakes and volcanoes occur a long destructive and conservation plate boundaries?...
- B Biology Which level of organization includes all the other lovels of organization?...
- B Biology A group of students conducts an expA group of students conducts an experiment to test the amount of sugar that can be dissolved in water at 50°F, 100°F, and 200°F.eriment to...
- B Biology Organisms that may make use of anaerobic respiration include A. Human Beings B. yeast C. Bacteria D. All of the above...
- B Biology Use the diagram above to explain how breathing digestion,and cellular respiration work together...
- B Biology The graph below shows how two different enzymes react with a substance as the temperature increases...
- B Biology A control variable is: A. Measured to show the effect of a change. B. Collected to draw conclusions. C. Changed to test a hypothesis. D. Kept the same to make an experiment a...
- B Biology 5.Does the examples of body language associated with lying that Meyer shares line up with what is discussed in the module? Give specific examples and discuss and differences...
- M Mathematics A soap manufacturer decreases the size of its trial-size bottle of dishwashing soap to 4.5 ounces, which is 10% less than the original size. What is the original size of the...
Ответ:
He will use a radioactive element with a long half life of greater than 1 billion years
Explanation:
Rocks are an aggregation of solid mass which is usually rich in minerals. The age of rocks is established using radiometric dating method.
According to Oxford Dictionary, radiometric dating is "a method of dating geological specimens by determining the relative proportions of particular radioactive isotopes present in a sample."
The age of rocks can only be ascertained using isotopes that have very long half lives because many of these rocks are very old (aged billions of years) hence their age can only be determined using elements that has a half life greater than 1 billion years.