Which is an internal environmental factor that affects heredity?
Within a flock of birds, some birds have long narrow beaks, and other birds have short wide beaks. Environmental changes happen that make it harder for birds that have short wide beaks to find food. After several generations, most of the flock has long, narrow beaks. Which statement best describes the trait of the type of beak that a bird in this flock has?
A student is given a list of traits and is asked to organize them in a Venn diagram as shown below. Which traits should the student put in section II (Both)?

Chameleons have a long tongue used to catch insects. The five toes on each foot are bound in two separate groups: one group of two toes and one group of three toes. This allows chameleons to grasp onto branches. Chameleons also have a flexible tail they use to hold onto branches, and they can change the color of their skin to communicate with other chameleons and for camouflage. Which statement about chameleons refers to the expression of a trait that is most influenced by the environment?
Which is an acquired trait?
Which statement best describes how the environment influences the traits of an individual?
Lisa's mother is shown in the image. Which trait is Lisa most likely to inherit from her mother?

Which of these is an example of both an acquired and inherited trait?
Which statement best describes heredity?
Jaden’s father is not sensitive to poison ivy. Jaden is also not sensitive to poison ivy. Jaden’s lack of sensitivity to poison ivy is which kind of trait?
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