1. Which of the following effects would you expect if red blood cells were shaped like neurons? (1 point) (1 pt) They would not be able to move as easily through capillaries.
O pts) They would more easily carry out gas exchange in the alveoli.
(Opts) They would not need to be transported through the body.
C (0 pts) They would become more effective at picking up urea discarded by body cells.
1/1 point
2. Which of the following is not a function of the skeletal system? (1 point)
N
O pts) supports the body
C (Opts) works with other body systems to allow movement
C (O pts) manufactures new blood cells
(1 pt) sends signals to the brain
1/1 point
3. Which of the following body systems are involved in the first line of defense of the immune system
against infection?
(2 point)
(1 pt) integumentary, digestive, respiratory
CO pts) nervous, circulatory, skeletal
X (opts) muscular, endocrine, urinary
Ć (Opts) urinary, skeletal, integumentary
0/1 point
4. Which of the following sets of structures would be involved in ridding the body of unwanted urea? (1 point)
O pts) sensory neuron, intemeuron, spinal cord
CO pts) alveoli, atrium, cilia
ipt) capillary, nephron, ureter
Opts) brain, esophagus, small intestine
1 point

THIS MIGHT LOOK CONFUSING BUT IF YOU HAVE THE SAME ONE THE ANSWERS ARE
1A,2D,3A,4C,5B,6D,7C,8B,9C,10B
You’re welcome ig

question#1

ans:

cell is the basic unit of organization of all living things. cells are often called the building block of life and it is the smallest unit of life. the study of cell is called cell biology. cell consists of cytoplasm enclosed within membrane, which contain bio-molecules such as proteins and nucleic acid.

two third of cell is water, which means that two-third of your whole body is water. the rest is the mixture of molecules, mainly proteins, lipids and carbohydrates.

question#2

ans:

organ:

an organ is a group of tissues specialized to form a functional unit. an example is the heart in animals.

organ system:

an organ system is a group of several organs whose functions are synchronized to release an effective action in a living organism. an example is digestive system.

question#3

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#4

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system—working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#5

our body works because of the interactions that happen between organs and organ systems.  

for example:  

the heart to regulate blood flow throughout the body. the blood carries oxygen and nutrients to the cells and carries carbon dioxide and waste away from the cells. body systems work together in maintaining a constant internal environment. when this balance is disrupted, the body systems may not function properly, and human health can suffer.   you start to feel bad.

1)

i))the process of preparing food by green plants in the presence of sunlight is called photosynthesis.

ii) leaf is the site for photosynthesis.

iii) it takes place as,

6h2o+6co2=c6h12o6+602