On a certain day, donnie observes the wind is blowing at 2 miles per hour. a bird nesting near donnie's house flies three quarters of a mile down the road (in the direction of the wind), turns around, and returns exactly 12 minutes later. what is the airspeed of the bird? (here, 'airspeed' is the speed the bird can fly in still air.)

Air speed of bird is mph

Explanation:

let the speed of the bird in still air be "X"

Speed of the bird when it flies in the direction of flow of wind

Speed of the bird when it flies in the opposite direction of flow of wind

The total time taken is equal to minutes

hours

The distance in miles is equal to miles

On solving the above equation, we get -

Air speed of bird is mph

hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

hope this   and an i get brainlsiest