How does your immune system remember a particular pathogen?

What tools measure solids or liquids

What is the main function of the circulatory system in multicellular organisms? A. to bring oxygen into the lung B. to put carbon dioxide into all blood vessels C. to expel waste products from the body D. to transport materials throughout the body

Colonies occur when an animal produces many young asexually and they become detached from the original (parent) animal and result as an independent mass. a) true b) false

Only specialist species are well adapted to their native habitats.

What organ is described as hollow and serves as a reservoir for urine until it passes from the body?

What continents lie mostly north of the equator

The classification system includes the domain Archaea. What characteristic would NOT be found in an organism in this domain? A. a cell wall B. a nucleus C. a set of genetic instructions D. a cell membrane

Example of the stimulus and responds in human

What might happen to cells that are exposed to high concentrations of sugar?

Why are the results of genetic crosses shown in punnett squares interpreted as probabilities, not certainties? give some specific reasons?