QUESTION 3 Which structure(s) do all of the embryos have in common during Carnegie stage 8? Select all that apply.
Heart
1 Limb buds
Brachial arteries
Neural groove
| Umbilical cord
U Somites
| Tail bud
Help ??

The picture shows a fishing technique called trawling. how might trawling affect marine biodiversity

In a cladogram' when does a group of organisms branch off

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point