Large type B whales eat mainly seals, especially Weddell seals, and also hunt minke whales. Small type B killer whales have been observed hunting penguins and are believed to mainly eat fishes. Type C killer whales mostly eat Antarctic toothfish (Dissostichus mawsoni).
An oval has two lines of symmetry. A line of symmetry is defined as the line that a figure can be divided into half, with the end result of the two halves matching up exactly. Each side of the divided side looks like a mirror image. Comments.
In particular, these are common traits of ovals: 1  they are differentiable (smooth-looking), simple (not self-intersecting), convex, closed, plane curves; 2  their shape does not depart much from that of an ellipse, and. 3  an oval would generally have an axis of symmetry, but this is not required.