Blood vessels and nerves travel in connective tissues, not between the cells of epithelial membranes. why? would you expect to see strands of connective tissue within the pancreas and liver?

Nasa scientists must work together to make sure that everything is correct and accounted for when launching a shuttle. besides a physicist, what other type of scientist would be in making sure that the shuttle has the appropriate type and amount of fuel to reach its destination?

Why does sexual reproduction result in more genetic variation in a species

Earth is tilted on its axis. which of these would not exist if earth had no tilt?