big bang theory- the theory that states that the universe formed by rapid expansion of matter and energy from an initial infinitely small, dense point
biological species- a group of interbreeding organisms that can produce fertile offspring
eukaryotic cell - a type of cell that has a membrane-bound nucleus and membrane-bound organelles
evolution- the process by which inherited characteristics within a population change over generations
fossil- remains or traces of organisms preserved over long periods of time
geologic time scale- an organizational chart that chronologically divides the natural history of earth into eras and
periods
homologous structures- structures that occur in different species but are similar enough to suggest that the species had a common ancestor
natural selection- the process by which species pass on the beneficial traits that help them survive
prokaryotic cell- a type of cell without a membrane-bound nucleus and without membrane-bound organelles, considered by scientists to be a more primitive type of cell than the more complex eukaryotic cells
selective breeding- the process of breeding organisms with the most desirable traits
speciation- when natural selection leads to an entirely new species
theory- an explanation or model of related natural events that can be tested by observations or experiments
vestigial structures- structures that appear to have no function for the organism but probably had a function in an ancestral organism
The right answer is B) Specialized tissues come together to create the stomach, which is an organ.
* Cells linked to each other form a set called tissue. The cells composing a tissue are not all identical, but they work together to provide a specific function.
* Each organ is a recognizable structure (eg, heart, lungs, liver, eyes, stomach) that provides a specific function. An organ consists of different types of tissues and, therefore, different types of cells.
The stomach is a thoraco-abdominal organ, located in the abdomen and in contact with the chest wall.
The stomach is a dilated segment of the digestive tract located between the esophagus and the duodenum. Its main function is to turn the food bolus into a mixture called gastric chyme.
The stomach is composed of two parts, two sides (anterior and posterior), two edges (small and large curvature) and two orifices (the cardia, upper orifice, and the pylorus, lower orifice).
Answer:
Gravitropism
Explanation:
Plants can respond to gravity, water, touch, and light in their environment. Plant parts can grow with or against gravity. This type of tropism is called gravitropism. Roots of a plant grow downward and exhibit positive gravitropism.
Answer:
B cell membranes protect a cell,and cell walls do not
