Answer:
2 in 4
Explanation:
If a female cat with orange fur (XOXO) is crossed with a male cat with black fur (XoY) then:
P: XOXO x XoY
F1: XOXo XOY XOXo XOY
This means that half of the offspring will be females with tortoiseshell color (XOXo) and other half of the offspring will be males with orange fur (XOY).
The correct answer that would answer the given question above would be EXPERIMENTATION. The scientific method uses observation to gather information, and to answer the questions based on the information gathered, this would involve experimentation. This is the testing of the information so that it would given a clear evidence on the answer. Hope this answer helps.
Answer:
due to the rate of blood circulation