Why do flowers have pigment, not how but the reason they have pigment

How are spring and neap tides different from regular tides? 1. They occur twice a day. 2. They are caused by wind. 3. They occur twice a month. 4. They are extra-high tides and extra-low tides. 5.

A pyramid of energy has 100 units of energy available for the first traffic level. How many units would be available for primary consumers? How did you calculate this?

How are organisms in the domain bacteria classified

Plant species X lives in a hot, dry environment. Slowly, over hundreds of years, the climate becomes wetter. Fungi attack species X and cause the population of species X to decrease.

Which of the following is not true of theories and laws? A law has no exceptions. A hypothesis might eventually lead to a theory. All theories will eventually become laws. A theory might be proven wrong.

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