Relationships between organisms may be or harmful. which of the following describes a relationship that is to both organisms involved? a. an african wasp pollinates a fig tree as it eats the tree's nectar. b. a female black widow spider mates with a male spider, then consumes him. c. a species of hyena known as the aardwolf consumes termites for nourishment. d. a tick attaches itself to the skin of a dog and takes a blood meal.

In an experiment, how can i change human errors? be specific.

The energy equivalent of the rest mass of an electron is

Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =