Answer:
C. 3:3
Explanation:
"Ozone is a gas that is naturally present in our atmosphere. Each ozone molecule contains three atoms of oxygen and is denoted chemically as O3. Ozone is found primarily in two regions of the atmosphere." https://csl.noaa.gov/assessments/ozone/2002/qandas1.pdf
Answer:
The correct phases would be
Homologous chromosomes are separated: It occurs during anaphase I of the meiosis I. It is the third phase of meiosis I during which homologous chromosomes are separated and pulled in opposite direction with the help of spindle fibers.
Homologous chromosomes are paired: It occurs during prophase I. The pairing of homologous chromosomes is termed as synapsis. The pairing is initiated in the zygotene stage of prophase I of the meiosis I.
Nuclear envelopes form around separated chromosomes: It occurs during the telophase I. It is almost opposite to the prophase I. After this phase, cytokinesis takes place.
The centrosome replicates: The replication of centrosome takes place during the S phase of the cell cycle. They migrate to the opposite ends during the prophase.
Answer:
The amount of carbon-dioxide atoms released by respiration are exactly equal to the atoms of these materials contained in the oxygen and carbon converted.
Explanation:
<span>Motility: Mechanical breakdown and mixing of ingested nutrients by smooth muscle movements, passage of nutrients through the digestive tract, and elimination of undigested or unabsorbed residues from the body.</span><span>Secretion: Release of enzymes, hormones, and other substances that take part in digestion.</span><span>Digestion: Chemical reduction of ingested nutrients into particles, then into molecules small enough to cross the lining of the gut and reach the internal environment of the body.</span><span>Absorption: Passage of digested nutrients from the gut lumen into the blood or lymph, which distributes them throughout the body.</span>
