Answer:
In 1964 2.6 bales per hectare while in 2008, 380 bushels per hectare.
Explanation:
in 1964, the average corn yield was 2.6 bales per hectare which is equals to 570 kg per hectare while in 2008, the average yield of corn was 380 bushels per hectare which is equals to 9655 kg per hectare. This increase in the productivity of corn crop is due to advancement of technology, high yielding seed varieties and reduces post harvest losses. The yield of 2008 is 17 times higher than 1964.
Answer:
Sea urchins have a unique relationship of oxygen and carbon-di-oxide.
Explanation:
Sea Urchins spread oxygen in a unique way. They take in oxygen by staying inside water. Oxygen enters the body through their gills and tubed feet. CO2, which is waste is released through the anus. They get oxygen only through diffusion, i.e. diffusion of oxygen into the organism. Oxygen diffuses in body through the canals and carbon dioxide diffuses back into the canals. Urchins also have the capability to cope up with rising CO2 levels in the sea.
In drosophilia, the gene for eye color is located on the x chromosome.
Answer:
Are made of sugars = Carbohydrates
Are used by organisms for long-term energy storage = Lipids
Are used by organisms for energy = Carbohydrates
Are made of fatty acids = Lipids
Change one thing about the tests multiple times I'm guessing