Fleas are wingless insects that undergo complete metamorphosis with four stages: egg, larva, pupa, and adult. fleas prefer a warm, humid environment, with temperatures ranging between 70° and 90° fahrenheit and a relative humidity of 75% or more. under ideal conditions, the cat flea life cycle takes just 18 days, from egg to adult. fleas require a blood meal on a regular basis. they prefer blood from your pet, but they will also fleas will bite you! bites are common around a person’s ankles or on their feet. the bites itch! the female flea may deposit up to 50 eggs per day on your dog or cat. as your pet walks around your home, many of the flea eggs fall off. flea eggs are tiny so they can go unnoticed in your pet's bedding, in carpets, or on upholstered furniture
according to the passage, the flea is a and your pet dog is the
a) host; prey
b) parasite; host
c) parasite; prey
d) predator; prey

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

What is the volume of 2.5 moles of nitrogen gas (n2)at standard temperature and pressure (stp)?

The image compares the arrangement of electrons in two different neutral atoms. a figure labeled atom q has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has six black spheres. to the left of this figure is another figure labeled atom p. atom p has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has seven black spheres. which of the following best explains the position of the two atoms in the periodic table? atom p has an estimated zeff of 7 and is therefore to the left of atom q, which has a zeff of 6. atom p has an estimated zeff of 7 and is therefore to the right of atom q, which has a zeff of 6. atom p has an estimated zeff of 5 and is therefore below atom q, which has a zeff of 4. atom p has an estimated zeff of 5 and is therefore above atom q, which has a zeff of 4.