1,000 kcal are available for the 1st trophic level, How many kcal are available for the tertiary consumer?

A river has different populations of lampreys and paddlefish. The paddlefish feed on zooplankton, while the lampreys feed on the paddlefish. Humans living around the river hunt the paddlefish.

Genetic engineering, gene splicing, and recombinant DNA technology are all techniques used in biotechnology. Before using these technologies, however, what is required? A. specific scientific knowledge about the natural system being modified B.

Which of the below is true about Brazil's Araucaria trees? a. They are one of the dominant trees in the Brazilian Amazon b. They were once Brazil's leading export, but are now almost completely gone c.

Charla's blood pH level is 7.3. How will her body most likely respond?

This is released by cells during cellular respiration

Two women are involved in an argument. The first woman says to the other, "If you don't shut up, I will kill you!" The second woman continues and the first woman punches her.

a mimic octopus has lost some of its arms, and is in the process of regeneration. Describe a scenario where this ability would provide the octopus an advantage in its environment.

Which of the following statements regarding NK cells is a false or incorrect statement? NK cells are present in the blood, spleen, lymph nodes, and red bone marrow; NK cells attack cancer cells and virus-infected body cells;

List two magnetic materials

Of the following, which one is an observational study? 1. Asking people for their opinion on the taste of a new cereal 2. Checking the effectiveness of a new headache medicine by giving one group the new medicine and one group acetaminophen 3.