Evolution Answers

Visiting a beach at the ocean, I recently saw a Blue Heron dive and catch quite a spiky/large (and colorful! I think it was called a sculpin) crosswise in it's bill. It appeared, meal was fighting to prevent becoming the bird's dinner. This fish was over a foot in length, quite girthy, and spiky fins! In about a minute the heron had its head and gulped the thing live the whole way down it’s long neck!!

It was a bit gruesome to watch the climax... I thought it was finally over, but once in the stomach you could see the fish kicking much to the discomfort (it appeared) to the bird!

We didn't hang around for longer. I wonder if that was the end for the fish or if the heron its meal??

Still, wouldn’t the sculpin stand a of escaping or even damaging (thrashing, sharp fins, biting, etc.) the bird's insides if eaten like that?? I thin the
elastic/stretchy insides could work against itself, giving the fish a chance to turn around? Thanks!

what are two examples of humans changing living things? and what is it called when people change the size and shape of living things? and why are living things like Giant ground sloths, Sabre tooth cats and ameonites have completed disappeared?

Fossils are preserved remains or traces of ancient organisms. Which of the following is not an example of a fossil? Quartz vein in a lump of granite / ammonite shells embeddded in stone / insects trapped in hardened amber

The trait that increases the gas exchange efficiency of fish gills is the
a. Unusually high velocity of blood flowing through the gills due to the pressure required by having only one ventricle
b. Back-and-forth movement of water that maximizes oxygen uptake
c. Largest respiratory surface of all vertebrates
d. High degree of oxygen saturation in water
e. Blood flowing through the gills in the opposite direction of water flowing over the gills

Which type of cell division is responsible for variability among members of a species, mitosis or meiosis? Why?

Which of these causes increased output of urine
A low blood pressure
B high reabsorption from collecting duct
C low water content in the body
D lowered osmotic pressure

The only taxonomic category that has a real existence

what are 3 adaptations that animals have that plants do not have?