Answer:C performing a courtship dance
Explanation:
Cells are divided into two main classes, initially defined by whether they contain a nucleus. Prokaryotic cells (bacteria) lack a nuclear envelope; eukaryotic cells have a nucleus in which the genetic material is separated from the cytoplasm. Prokaryotic cells are generally smaller and simpler than eukaryotic cells; in addition to the absence of a nucleus, their genomes are less complex and they do not contain cytoplasmic organelles or a cytoskeleton (Table 1.1). In spite of these differences, the same basic molecular mechanisms govern the lives of both prokaryotes and eukaryotes, indicating that all present-day cells are descended from a single primordial ancestor.
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Answer: D. Water will enter and exit the cells at a steady rate and their sizes will remain the same.
Explanation:
Osmosis occurs when the salt content is NOT the same as our red blood cells: the salt or lack of it causes our RBCs to swell or shrink. Isotonic fluid has the same salt content as our RBCs. This is why it's important to watch salt intake in congestive heart failure.
Carbon dioxide fixation in plants occurs at the STROMA.
Carbon dioxide fixation is the first step in the Calvin cycle and it occur in all plants. Carbon fixation is the process by which inorganic carbon is converted to organic compounds by the plants. The process of carbon fixation converts carbon dioxide and ribulose biphosphate into 3 phosphoglycerate.
Answer:
D
Explanation:
The chimicals pollutes the water with toxins
