- What are the smallest units of life?
- The number of birds is decreasing because the number of cats is increasing. The researcher that makes this observation indicates that the ? is the independent variable
- What are the components of organ systems? Select all that apply.
- distinct groups of cells with a similar structure and function are called
- various organs that carry out a major body function make up a(n)
- what happens to phospholipids when they are too hot
- which of the following is NOT a characteristic used to differentiate kingdoms
- this type of endocytosis is called cell drinking
- the process by which cells become specialized in form and function is called
- Hawaiian honeycreepers (birds), consisting of 50 species, some of which are now extinct, represent a much more diverse lineage than Hawaiian thrushes. Honey creepers have a remarkable variation in bill morphology, whereas Hawaiian thrushes exhibit far less morphological variation. Bill morphology is strongly linked to the resources available for these birds to eat. This suggests that in honey creepers may have occurred as a result of .
- four of the kingdoms include eukaryotes and the other two include
- Geographical isolation is strongly associated with the phenomenon known as
- The vegetable we know as the potato resulted from naturally occurring genome doubling within one species. In other words, the potato has twice as many chromosomes as the ancestor it was derived from. The potato could therefore be described as being the result of the process known as
- tissues organized into specialized structures with specific functions are called
- a carrier protein or channel protein within the plasma membrane transports a substance across the plasma membrane following the high to low concentration gradient
- A dam is built that separates a river into two sections—a deep upstream section and a shallow downstream section. When the dam is first built, a fish species is able to move from the upstream section into the downstream section, but not vice versa. Predators can more easily catch the fish in the shallow downstream section than they can in the deep upstream section. Which scenario is most likely to lead to speciation?
- a temporary collection of cells that come together for a period of time and then separate is called a(n)
- The sperm of species A dies when it comes in contact with the female reproductive tract of species B. This is an example of the phenomenon known as
- which kingdom contains both unicellular and multicellular organisms?
- The classification of organisms based on appearance alone is known as the ________ species concept.