Accidentally having extra variable in a controlled experiment is one way to introduce what to an experiment

After Gerry mows his lawn, he often puts the grass clippings into his flower garden. How will this affect his garden

Every member of a particular species is found within a certain population living in a desert. The growth of this population is limited by the availability of water in the ecosystem. The population has many food sources available to it.

Those arguing for the inclusion of a neutral option on an interval scale believe that some respondents do not have opinions formed on that item, and they must be given the opportunity to indicate their ambivalence.

A microbial ecologist wants to study a bacterium that is adapted to growth in lake water containing very low nutrient concentrations.

Match the following for the following questions: Part Aa. Secretes b. Regulatory c. Hormones d. Supports Body and Anchors e. Muscle f. Transports g. Substances throughout the body including the heart. h. Exchanges Oxygen and CO₂ between body and air.

Polydactylism is a dominant trait that results in extra fingers and toes in humans. A polydactyl man marries a woman with 10 fingers and toes. They have a child that has a normal number of digits.

Why are some sediments smaller than others

Ethanol is produced during what cycle or fermentation

Explain briefly why there is a limitation on how big a cell can be. Include in your explanation the relationship between a cell's size and its surface area and how this affects what the cell can do.

Which effect is most likely caused by nondisjunction during meiosis? A. an extra chromosome B. an increase in nuclei C. increased survival benefits from traits D. only two types of nitrogenous bases