1* 1.
a.
Which of these best explains why birds and dogs both show gills in their early
development?
Both organisms can breath underwater
Both organisms share a common ancestor
Both organisms use them to process food when they are young
Both organisms have different ways of forming their lungs
b.
C.
d.
a
b
с
d

Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.

The body of water found at number 4 on the map above is the

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.