Answer:
Blood, the heart pumps oxygen-poor blood to the lungs to be oxygenated.
Explanation:
:) Merry Christmas!
Answer:
A sample with invertebrates like fresh water shrimp and mayfly larva indicates clean water, because these species have very low tolerance for any pollution.
Explanation:
Climate change has the effect of making the entire earth warmer, which means that winter begins later, and ends earlier. It's like if i have a boiling pot of water, and its in a room heated to room temperature, it'll cool somewhat fast, but if I have a boiling pot of water outside exposed to the sun, it will still cool, but not as fast and not as much.
Answer:
It allows the cells to move
Explanation:
A flagellum is a whip-like structure that allows a cell to move. They are found in all three domains of the living world: bacteria, archaea, and eukaryota, also known as protists, plants, animals, and fungi. While all three types of flagella are used for locomotion, they are structurally very different.
BRAINLIEST PLZ
Just So you know, <span>The molecular clock, explains Blair Hedges, is a tool used to calculate the timing of evolutionary events. Instead of measuring seconds, minutes and hours, the molecular clock measures the number of changes.</span>