Answer:
Taxonomy is the study of classifying oranisms based on similarities different organisms share
the purpose of the classification stystem is to identify species and understand similarites between different species
Classifcation-Grouping oranisms based on similarites
Taxonomy- the study of classification of organisms
Explanation:
Cell Division in Animals and Plants
Animals: During the cell division stage, many things occur such as spindle fibers and organelles that only occur in animals. Animal cells build up a wall that then divides after all of the steps have occurred to create sister cells.
Plants: The plant cell develops a cell wall, but does not develop a cell wall that can divide itself. <span />
Answer:
In general, your body fights disease by keeping things out of your body that are foreign. Your primary defense against pathogenic germs are physical barriers like your skin. You also produce pathogen-destroying chemicals, like lysozyme, found on parts of your body without skin, including your tears and mucus membranes. In response to infection, your immune system springs into action. White blood cells, antibodies, and other mechanisms go to work to rid your body of the foreign invader. The immune system has a vital role: It protects your body from harmful substances, germs and cell changes that could make you ill. It is made up of various organs, cells and proteins.
Once infected cells have sensed an invading pathogen, they secrete molecules called cytokines and chemokines. These cells are then primed to resist an infection with the invading virus. Cytokines such as interferons activate anti-viral genes in the infected and neighbouring cells.
Microorganisms capable of causing disease—or pathogens—usually enter our bodies through the eyes, mouth, nose, or urogenital openings, or through wounds or bites that breach the skin barrier. Organisms can spread, or be transmitted, by several routes.
The second line of defense is nonspecific resistance that destroys invaders in a generalized way without targeting specific individuals: Phagocytic cells ingest and destroy all microbes that pass into body tissues. For example macrophages are cells derived from monocytes (a type of white blood cell).
If pathogens do manage to enter the body, the body's second line of defense attacks them. The second line of defense includes inflammation, phagocytosis, and fever.
Answer:
Biological predisposition.
Explanation:
Operant conditioning may be defined as the form of the learning that are mainly associated with the punishments and rewards of an individual. John B. Watson introduces the concept of operant conditioning.
The learning of the pigs to pick the coins and its deposition in the bank is considered as rewarded with some conditions. The biological predisposition occurs in the memory of the pigs as this increases the likelihood works of the pigs.
Thus, the correct answer is option (d).
Answer: A. True
Explanation: Cell receptors are proteins that receive signals and trigger a signal cascade for the cell can respond. There's many types of receptors, depend of their location and their enzymatic activity, and each type can recognize certain signals. For example, tyrosine-kinase receptors can recognize growth factors, JAK associated receptors can recognize cytokines, etc. That specificity is given by the structure of the receptor and the structure of the signal.