The carbon cycle ensures that living things have a continual source of hydrogen. The carbon cycle helps transport nutrients in bodies of water.
Yes, when two root tendrils from a strangler fig touch, they fuse together. Because the roots wrap around the trunk of the host tree, they overlap a lot and eventually form a mesh that completely encircles the host.
The “host” being a cypress tree.
The crystal violet molecules are trapped in the peptidoglycan layer of bacteria. For Gram-positive with a large peptidoglycan layer, the crystal violet molecules don't get washed off easily by the ethyl alcohol decolorizer (as it does in gram-negative bacteria) after staining. This makes it is possible to view the structure of the gram-positive bacteria after gram staining.
Answer:
The correct option is: e. molecules move across the plasma membrane against their concentration gradient
Explanation:
Active transport refers to the <u>movement of the particles or molecules from higher concentration to lower concentration, across the plasma membrane of a cell.</u> This transport requires cellular energy as the movement of the molecules is <u>against the concentration gradient</u>.
Active transport can be divided into primary and secondary active transport.
