I don’t understand the question but if I can make a correct inference, they have thorns to protect themselves from predators.
I say the answer to your question is False because Day and Night are caused by the rotation on its axis!
Answer: It’s definitely not D. I’m thinking A or C
Explanation:
Because survival of the fittest mean that the ones that aren’t the best will die basically. So that why it’s not D
The correct answer is E. Vertebrates are all related to a common ancestor
Explanation:
According to biology and evolution, organisms from different species but that share similarities in morphology (body structures) as well as in genetics often have a phylogenetic relationship which means they descend from the same organism or share a common ancestor. This applies to multiple taxonomical levels including classes such as mammals or birds as it has been proved each of this derived from a common ancestor. Therefore, the similarity in the body structure (morphology) in all mammals suggest vertebrates are related to a common ancestor and as they evolved from this, they share similarities not only in terms of morphology but also in genetics.
Eliptical (oval shaped), rather than Circular.
