Answer:
Student B
Explanation:
They used to units of measurement to verify there answer.
Fist student rounded so its an estimate of the answer but second student verified with millimetes and cm.
Also its physics lol or maybe math.
Answer:
e) Invertebrates lack a nervous system
Explanation:
One of the main characteristics of invertebrates is that they don't have a backbone. Backbones belong to the skeletal system. A totally different story is the nervous system which runs inside the backbone. Although the more complex nervous systems appear in vertebrates the simply fact of having eyes like crabs or insects implies having a nervous system that can control them.
Mechanical digestion is the breaking down of food into smaller pieces physically. Mechanical digestion begins in the mouth as the food is chewed.
but in the case of chemical digestion, it breaks the food into simpler nutrients that can be used by the cells. Chemical digestion begins in the mouth when food mixes with saliva.
for more refer to this:
Hope this helped
and ur welcm
The first Olympic game was held in 776 BC
Answer:
I can’t see the answer choices. I would like to guess that it would either be natural selection, or something to do with limited natural recourses.
Brainliest? I’m trying to rank up. Thank you sooo much.
