Answer:
Law of the conservation of mass
Explanation:
Balancing equations demonstrates the fundamental law of the conservation of mass. It shows that you cannot create or destroy mass in a chemical reaction, so the mass stays constant.
Answer:
Replace the concentration descriptions with actual values
Explanation:
For results of this nature to mean much, they need to be able to be reproduced by a different experimenter. In order to be able to do that, the experimenter must be able to reproduce the salt concentrations. The graph would be more useful if it had the actual concentration values.
<span>The statement, “fruits develop from ovary walls,”
does not describe the nature of fruits accurately. Fruits are the reproductive
organs of plants just like the flowers and the seeds. They are mature ovaries
of the plants that serve as an important factor in perpetuating its species.
These mature ovaries encapsulate more seeds inside that promote germination.
They are an important source of dietary fibers and nutrients that are body
needs, particularly vitamin c. Through modern technologies fresh fruits can now
be made into jams, juices, and jellies and can be preserved through canning,
picking, and fermentation. </span>
The answer is “Organisms that contain functional recombinant DNA
Although there's plenty of nitrogen in the air, it's not in a form plants can use. They can only absorb nitrogen in the form of ammonium, nitrite, and nitrate. One way plants have access to these forms of nitrogens is decomposition of organic matter by soil organisms. Another source of usable nitrogen are mutualistic relationships between plants and bacteria. By providing nitrogen-fixing bacteria a place to live and feeding them with carbohydrates, plants get nitrogen in the form of ammonium. Plants that can do this include most legumes which form relationships with Rhizobium bacteria, and other plants like alder, bayberry, California lilac, and Russian olive that support Frankia bacteria on their roots.
There are also free-living nitrogen-fixing bacteria, as well as cyanobacteria that grow on the surface of plants or the soil, that add small amounts of plant-usable nitrogen to the soil. Lightning also generates usable nitrogen compounds.
Chemical fertilizer is a major source of plant-usable nitrogen. But other human activities, like the burning of fossil fuels and livestock operations, inadvertently produce widespread, nitrogen-enriched rainfall.