The MRI scanner measures this signal difference and displays the activity as a colored area (Figure 1). Diffusion Tensor Imaging (DTI) is a technique that detects how water travels along the white matter tracts in the brain (Figure 2). White-matter tracts connect different parts of the brain and must be protected during surgery. A dye (contrast agent) may be injected into your blood stream.
Quick Answer. Diving bell spiders of the species Argyroneta aquatica have the ability to swim, and they use this adaptation to live underwater. Although they live and swim in the water, diving bell spiders still breathe air by creating air pockets underwater that they use as homes. Continue Reading.
Second: There are three types of spiders called Banana Spiders: Actually not all spiders are venomous as the camel spider's bite doesnt contain venom is an incorrect edit as camel spiders are not spiders at all and are in fact solifuges. The Western Pacific Banana Spider, which is most commonly found in tropical islands such as Okinawa and the Philipeins. 2  It is a moderately large orb weaver with a distinctive, yellow mottled abdomen and is highly venomous.