Answer:
c. 10
Explanation:
The pH scale ranges from 0 to 14.
0 is the most acidic
7 is neutral
14 is the most alkaline
10 is near 14
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Answer:
c. population
Explanation:
biosphere includes different species and a broad ecosystem
ecosystem is different species
environment refers to a just the type of ecosystem such as aquatic environment
Answer:
b. Hiccupping is a vestigial reflex that suggests a common ancestry between humans and amphibians.
Explanation:
Hiccupping refers to an involuntary contraction of the diaphragm that usually occurs several times per minute. Some research has suggested that hiccuping is an evolutionary remnant of amphibian respiration. This is because the mechanism is remarkably similar to the way tadpoles gulp air and water across their gills. This would mean that hiccups exist due to an antecedent to modern lung respiration.
Answer:
When homologous chromosomes form pairs during prophase I of meiosis I, crossing-over can occur. Crossing-over is the exchange of genetic material between homologous chromosomes. It results in new combinations of genes on each chromosome. ... It is obviously another source of genetic variation in offspring.
Explanation:
i looked it up on google
