It is particularly important for pregnant women to carefully wash their hands and take other precautions if they have a pet cat and are changing the litter box.An organism occasionally carried by cats,pig,and sheep can infect humans and pass from mother to child in utero,resulting in severe symptoms in the growing child.Microscopic examination of this organism shows a nucleus and other visible cellular organelles.It obtains all its nutrients from whichever host it currently occupies and can multiply by fission.This pathogenic organism is the

As Charlotte snorkels near the shoreline,she notices large masses of something green swaying with the surf.She suspects this to be a large plant in the ocean.She collects a sample.Upon closer examination,she discovers that there are no vascular structures to absorb and transport water and nutrients throughout the organism,but there are chloroplasts present in the cells.This organism most likely belongs to kingdom

On a hike,Cheryl notices some flat green plants clinging to the side of a damp rock.She brings a few of these flat but leaf-shaped plants back to the lab to examine under the microscope and determines that these plants are only a few cells thick and have no vascular tissues like xylem and phloem.They appear to be absorbing water directly through their surfaces.These little plants are probably