there are four trophic levels in a food chain: Algae, salmon, bears and humans. if algae produce 6500 kj of energy, calculate the amount of energy that is passed on to each trophic level

The appropriate unit for defining and measuring genetic variation is the

What term defines a gene made up of two different alleles? recessive heterozygous segregated homologous

Why does the length of the gene determine length of the mRNA?

Vitamin c is a water-soluble vitamin, so it is likely that this vitamin is polar. true or false

A nurse is caring for a client who had clostridium welchii (clostridium perfringens) cultured from a wound of the lower extremity. which disease results when this organism enters a wound, causing crepitus?

Which best describes the process of editing a conclusion?

What are the sections of aquifers?

What is biodiversity?

In what way are plants in a sunny meadow and sulfur bacteria in a deep sea vent alike A) They both use photosynthesis to make their own food B) They both produce carbohydrates C) They both use chemosynthesis to produce their own food D) They both

Maryland white oak trees make their own food. Their cells contain structures that capture energy from the sun. What are these structures?