Explanation:
Chromosomes carry DNA which is the genetic material of that organism.
WHILE.
Chromatids help the cell to duplicate and in turn aid in cell division.
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<span>If a scientist is trying to determine whether the use of cell phone contributes to brain cancer, then the most significant weakness in this type of study is the relationship between the cell phone and brain cancer itself. It is hard to identify its connections and consequences with each other.</span>
Answer: Tree
Explanation: Trees produce sap, nuts and fruits.
Answer:
to ensure that the two individuals are of the same species
Explanation:
It also involves stereotyped behaviours. Courtship behaviour informs a potential mate that the intention is breeding and not aggression.
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The only way invertebrates fight diseases is through excretion. Excretion is a process through which metabolic wastes and toxins are eliminated from a specific organism.