Grain is eaten by cows, and cows are eaten by humans. if the ecological transfer efficiency between each trophic level is 10 percent, how much grain is required to produce 70 kg of human biomass?

What does the word cycle tell you about the chemical reactions of the Calvin cycle

What processes caused coal to form?

In what two plate tectonic settings do most volcanoes occur

Is there any one who is preparing fo medical entrance exam

1. When can two parent plants with purple flowers produce offspring with white flowers?

What is true of all eukaryotes? i need it asap

True or false: A beach that has an abundant sand supply is said to be a "healthy" beach.

5. Tay-Sachs disease is caused by a recessive allele. The frequency of this allele is 0.1 in a population of 3600 people. What is the frequency of the dominant allele, and how many of the 3600 people will be heterozygous for the condition

A male adolescent asks the nurse, "how will i know if i'm going through puberty?" the nurse discusses physical changes that usually occur, the first change being:

What type of molecule serves as the inorganic carbon reservoir for photosynthesis? A. Glucose B. Starch C. ATP D. Carbon dioxide