When phospholipids and other molecules are placed into water, microspheres (primitive cells) form spontaneously. These microspheres are called.
Scientists believe that our atmosphere has progressively changed as some living organisms began to harness sunlight energy to split water molecules to form complex carbon molecules. This activity led to an increase in:
An organism has just been located and needs to be placed into one of the domains of life. The characteristics that have been reported are multicellular and autotrophic. Based on your knowledge, in which domain should this organism be placed?
. A system of statements and ideas that explain a group of facts or phenomena is called a:
The idea that each species consists of actually or potentially interbreeding individuals that are reproductively isolated from other such groups is called the:
A systematist is constructing a phylogenetic tree for a group (clade) of animals. He/she has determined the shared derived characteristics which are:
Inherited from the most recent ancestor
All of the following:
1. They are not fungi, plants, or animals
2. Most are microscopic, although some are as large as trees
3. Many are unicellular, but there are some colonial multicellular forms
4. All types of nutritional modes are formed
Structures which are derived from the same body part in a common ancestor but may have different appearances and functions are called
Monocots and eudicots
The tissue in plants that consists of living cells that transport sugars and other organic molecules from the leaves to the rest of the plant is called
Describing in precise mathematical terms the process by which genetic variation is generated and passed on within population is called