Answer: Bacteria producing oxygen for the oxygenation of the earth's atmosphere.
Explanation: ????????? NOT FOR SURE
Answer:
True
Explanation:
Cell membranes are selectively permeable because of the structure of the phospholipid bilayer.
This bilayer only lets certain things in because it depends on the polarity, size, and type of molecule.
For example, glucose molecules are too large to enter. But, carbon dioxide molecules can go in and out easily because of their small size.
Answer:
Most likely B).
Explanation:
Dominant traits are the most likely traits, although recessive traits are still possible to pass down, just less likely.
Answer:
Option D.
Water and the xylem are both polar. Water molecules have the ability to form hydrogen bonds with each other and with the walls of the xylem.
xylem.
Explanation:
water is able to move upward from the roots of a plant, through its xytem in the stem, and out to the leaves because Water and the xylem are both polar. Water molecules have the ability to form hydrogen bonds with each other and with the walls of the xylem and it is as a result of water covalently bonded to it's molecules which is as a result of unequal sharing of electrons, i.e slightly positive and slightly negative molecules on the side or partly ionic make water and xylem to form intermolecular associations with the wall of xylem which make water to move upward through its xylem in the root, stem.
Answer:
The water is drawn in the xylem through capillary action and is dispersed through out the entire plant from stem to tips of the leaves and petals. When the water is colored, the color from the water can stain the plant, especially if it is a light colored plant, such as the white petals on our flowers.
Explanation:
