<span>The question is asking us whether it is true that nonnative species disrupt the natural variability of an ecosystem. This is true. A famous example is the introduction of cats to Australia: they are non-native species and they hunt the native species, therefore reducing the species variability in Australia.</span>
Answer:
keratinocytes
Explanation:
The skin contains various types of cells like melanocytes, keratinocytes and Langerhans cells. The Keratinocytes constitute about 90% of the human skin and are mostly present in the basal skin.
The keratinocytes produce keratin protein which protects the skin and some keratinocytes contain keratohyalin granules which are filled with cysteine-rich and histidine-rich proteins. The keratin and these granules make the skin waterproof.
Thus, keratinocytes are the correct answer.
Answer:
Below:
Explanation:
PCR was used for the amplification of the microsatellite. This technique can increase the rate of mutations in the genome by errors during amplification that is known as PCR noise [19].
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Answer:
pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water. Water that has more free hydrogen ions is acidic, whereas water that has more free hydroxyl ions is basic. Since pH can be affected by chemicals in the water, pH is an important indicator of water that is changing chemically.
