Answer:
Explain:
Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants. Figure below shows the hands of several different mammals. They all have the same basic pattern of bones
Answer: Homeostasis
Explanation: One way that a cell maintains homeostasis is by controlling the movement of substances across the cell membrane. The lipid bilayer is selectively permeable to small, nonpolar substances. Proteins in the cell membrane include cell-surface markers, receptor proteins, enzymes, and transport proteins.
Answer:
Sand
Explanation:
Sand is the largest mineral particle and it has more pore space between its particles than silt or clay.
This is sort of a vague question, but my best guess:
Predator and it's Prey
Nitrogen is cycled through the air
