20. d
21. a
22. c
23. b
24. c
25. b
26. d
27. a
<u>Answer:</u>
<em>The correct option is Option B i.e. a mutation that leads to individuals with genetic differences.
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<u>Explanation:</u>
The phenotype is the morphological character of an organism. Phenotype of a species depend on the genetic characteristics of the species itself, because all the characteristics are actually results of the genetic setup of the species.
So, a change in the genotype of the organism can bring massive changes in its phenotype. These genetic modifications are made up by the mutations.
A biological hazard is defined as any biological substance that threatens or may bring harm to the health of a living organism. Such includes virus or toxin samples and medical waste. Based on the given question above, the option that could be a biological hazard is option A. Pesticide.
Answer:
Endosymbionts Co-Evolution...
Explanation:
This is the only main evidence because let say we observe the size of mitochondrial DNA to be 70S and we measure the same for bacteria to be 70S. This means that there was some kind of endosymbiont relationship in ancient past or at origin of complex multi-cellular organisms that caused co-evolution of both of these and it;'s just not a mere coincidence...
Answer:
c; two electrons and a hydrogen ion
Explanation:
