Answer:
Lipids
Explanation:
Lipids are made of 3 fatty acids and 1 glycerol.
Proteins are made up of amino acids.
Nucleic acids are made up of nucleotides.
Carbohydrates are made up of glucose, galactose or sucrose.
Answer:
Root hair cell cytoplasm // Soil water
Explanation:
Water moves through the xylem vessels in a continuous transpiration stream:
root → stem → leaf
Transpiration produces a tension or ‘pull’ on the water in the xylem vessels by the leaves. Water molecules are cohesive so water is pulled up through the plant.
The transpiration stream has several functions. These include:
transporting mineral ions
providing water to keep cells turgid in order to support the plant
providing water to leaf cells for photosynthesis
keeping the leaves cool by evaporation
Root hair cells
The root hairs are where most water absorption happens. They are long and thin so they can penetrate between soil particles, and they have a large surface area for absorption of water.
Water passes from the soil water to the root hair cell’s cytoplasm by osmosis. This happens because the soil water has a higher water potential than the root hair cell cytoplasm:
Solution Water potential Concentration of dissolved solutes
Soil water High Low
Root hair cell cytoplasm Low High
Osmosis causes water to pass into the root hair cells, through the root cortex and into the xylem vessels
The three-domain system recognizes fundamental differences between two groups of prokaryotes.
Hope this helps!!
Share their findings through publications, public speaking and then news media. For scientist publishing findings is the most important way to share your work. printed in a scientific journal or a book. by a group of scientists to make sure that the evidence supports the findings.
Answer:
The correct answer is e. They tend to be similar to species from the closest mainland.
Explanation:
The species that live in the oceanic islands are more likely to be similar to the closest mainland because the chances of migration of species from the closest mainland are highest that from other areas that are very distant from the island.
The best example of this is seen in the Galapagos island which is 600 miles from South America. South America is nearest to Galapagos island than the African continent. Therefore the species found in the Galapagos island are more related to species found in lands of south America.
Therefore the correct answer is e. They tend to be similar to species from the closest mainland.
