Which statement best explains why a fertilized egg develops into an organism that is structurally similar to its parents? a
inherited DNA sens messages to the brain
b
inherited DNA provides the code for making key proteins
c
the fertilized egg is nurtured directly by its parents
d
the fertilized egg obtains energy from the same sugars its parents utilize

Are substances released into the environment that in excess amounts cause damage

Which of the following is an example of competition a. the leaves of a tree prevent a small shrub from getting sunlight. three species of birds feed a different heights in the same tree. b. three species of birds feed at different heights in the same tree c. zebra and giraffe’s feed on different grassland plants d. cats living in two different homes eat the same brand of cat food.

If a keystone species is removed from an ecosystem