The black arrow in the picture above is pointing to an organelle that is packaging and shipping substances out of a cell. what is this organelle?
a. nucleus
b. golgi body
c. mitochondria
d. endoplasmic reticulum

Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.

Fredrick griffith made a scientific discovery in 1928

Babies with very low or very high birth weight are less likely to survive. observe a graph of the data.