Explanation:
three new organisms ,x,y and z were discovered by a group of zoologists they observed that organisms x and y depend on organisms z for food . organisms z does not depend on oraganisms for food . oraganisms x is the . only one that can move on its own
Answer:
A. is increasing
Explanation:
The phrase "these days" tells us that we want something in the present. If it wanted the past, it would say "in those days" or something similar. So we can cross out d and b, because they are past tense.
It can't be c, because the subject-verb agreement is wrong (it would be increases, not increase).
We can conclude that the answer is a, <u>The population of the world these days </u><u>is increasing</u><u> very fast.</u> It's currently increasing.
Answer:
The <em>tetrad</em> occurs during the first phase of meiosis. It is the foursome of <em>chromatids</em> that forms when replicated homologous chromosomes align. It must be formed for crossing over to occur. It is broken apart when the homologous chromosomes separate in meiosis I.
Answer:
There are four principles at work in evolution—variation, inheritance, selection and time. These are considered the components of the evolutionary mechanism of natural selection.
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