Answer:
b is probably the answer because endosymbiont theory makes the most sense for building prokaryotic cells to eukaryotic cells.
Answer:
BELOW
Explanation:
Classrooms and Corridors: People rushing, locker doors, loose school items
On the territory surrounding the school: Rocks, trees, animals?, if not animals then: people
In the school: people, doors, bathrooms(no cameras)
In the settlement: People, doors, rocks
if an earthquake happens get in a doorframe and/or get on the ground and put your hands over your neck.
You should follow the teacher or staff's instructions
If you are alone find other people
911
(YOU KNOW THE NUMBERS i cant tell you)
There are just in plant cells hope this helps
Answer:
Explanation:
The most primitive tool I used today was the hammer. The hammer is age long in the history of household tools. It is used to hit in nails into walls or woods.
The most advanced tool I have used today is the mobile phone. This is a tool of the 21st century which makes communication easier and faster.
Answer:
c) receptor; control center; effector.
Explanation:
Homeostasis maintains the internal body conditions almost constant. It includes specific cells that sense any deviations of internal or external conditions from the normal range. These cells are called receptors. The sensory information from the receptors is delivered to the control center. The central nervous system mainly serves as a control system wherein sensory information from the receptors is processed. The control center commands muscles and/or glands to perform desired responses to restore the homeostasis. Here, muscles and glands serve as effectors.
For example, thermoreceptors sense the rise of body temperature and the brain (control center) commands sweat glands (effectors) to produce sweat.
