Sarah loves animals and wants to become a veterinarian one day. She decides to learn all she can about vertebrates, and she finds that they all have certain characteristics in common. Identify and explain the traits that vertebrates have in common.

Vertebrates have spines as Invertebrates don't

Explanation:

VertebratesInvertebrates

They have spine or backbone.These animals lack the spine or backbone.

Notochord, a self-supporting rod, is present in the embryos during the embryonic period.They lack notochord.

Generally, large and fast-moving animals.Generally, small and slow-moving animals.

the answer is definitely c.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.