All organisms, leaving out a select few have to have an even amount of chromosomes because they all sexually reproduce. Therefore when they go through Meiosis and Mitosis they need a even number to reproduce. If there was an odd number in Mitosis then one chromosome instead of 46-23 or 24-12 being evenly split would have to end up being 23-11.5 with a half which isn't possible.
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An odd number plus an odd number will be an even number. Odd number A is (even number + 1) Odd number B is (even number + 1) A + B = (even number + 1) + (even number + 1) = even number + even number + 2 Since all even numbers are divisible by 2 and 2 is divisible by 2, each part of the result is divisible by 2, so the sum as a whole is divisible by 2, which means it is an even number.
Every one of them has an even number of factors.
An even number can be divided by 2 evenly. An odd number will have a remainder of 1 when divided by 2. 56 is an even number.
Even. All numbers ending in six are even.
All even number can be divided by 2, and 46 and 50 are both even numbers.