Which two structures play direct roles in permitting bacteria to adhere to each other, or to other surfaces? 1. capsules 2. endospores 3. fimbriae 4. plasmids 5. flagella

Options 1 and 3

Explanation: The capsule are found in many prokaryotes. The capsule is a sticky outermost layer, it consist of polysaccharides. The capsule helps microorganisms to adhere to each other and to surfaces in their environment. It also helps prevent the cell from drying out.

The fimbriae are microscopic short, bristle like fibers used by microorganisms such as bacteria to adhere to one another and to adhere to cells and other inanimate objects. Bacterium may possess as many as 1,000 fimbriae. Fimbriae can only be visible with the use of an electron microscope. They can either be straight or flexible.

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.