Mitochondrial DNA is primarily involved in coding for proteins needed for electron transport. Therefore in which body systems would you expect most mitochondrial gene mutations to be exhibited?
Why is “(b) Nervous and muscular systems” the answer?
Category Archives: Muscular System Questions
Biology major help needed!?
can someboy who is VERY good at bio answer these questions for me?
structurally, how is the digestive tarct of an earthworm well adapted for eating dirt, while it is not for humans?
why do humans have a different digestive tract than an earthworm? focus on diet
a crayfish is more predatory than an earthworm, but its circulatory systemm is open compared with the erathworm’s closed circulatory stsytem. what are 2 reasons the worm has a better circulatory system?
the typhlsole is a large fold in the middle of the intestine. Why is this structure present in the intestine of an earthworm but not a flatworm parasite that resides in a human intesine?
earthworms have male and female reproductive organs. rather than fertilizing their own eggs w/ their own sperm they mate with other woms, exchchanging sperm that will be used to fertilizze eggs. why is this advantageous when it would be simpler for worms to fetilize their own eggs with their own sperm?
how are the integumentary (skin) systems of earthworms and starfish both multi-functinal, but in different ways? Articulate some of the multiple functons of each organisms’ integumentary systems.
How did the muscular arrangement/development of the earthworm differ from that of a chicken wing? Why does this difference exist?
This organism has no immune system. Why do so few organisms have well developed immune systems?
Biology question on tissues in organs?
Explain how the arrangement of the tissues (Epithelial, Connective, Muscular, Nervous) in the oesophagus contributes to the overall function of the system?
frog science question?
wat r tympanum (eardrum), and vocal sac? r they circulatory, digestive, excretory, nervous, reproductive, respiratory, skelton, or muscular systems?
The chemicals which cross the synaptic space from the axon to the dendrites are called..?
(a) myelin
(b) neurotransmitters
(c) calcium
question #2:
The series of smooth muscle contractions which move food through the digestive tract is called..?
(a) peristalsis
(b) muscular churning
(c) epiglottis
question #3:
Drugs that affect the central nervous system and relieve pain are:
(a) analgesics
(b)narcotics
(c)barbiturates
HELP Health question. need help fast please!!!!!!!!!!!?
Question 1 (True/False Worth 5 points)
The heart muscle tissue has the most endurance of any muscular organ in the body.
True
False
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Question 2 (Multiple Choice Worth 5 points)
Which of the following statements is NOT true?
Pulmonary arteries transport blood low in oxygen from the right ventricle to the lungs.
Veins carry blood away from the heart.
Capillaries form the connection between the arteries and veins.
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Question 3 (True/False Worth 5 points)
The heart is the key component of the cardiovascular system.
True
False
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Question 4 (True/False Worth 5 points)
The blood entering the right atrium is low in oxygen because it has just returned to the heart after nourishing the body with needed oxygen.
True
False
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Question 5 (True/False Worth 5 points)
Coronary circulation is the blood that circulates through the lungs.
True
False
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Question 6 (True/False Worth 5 points)
Without the pumping action of the heart, the cells of the body tissues die.
True
False
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Question 7 (Multiple Choice Worth 5 points)
The flow of blood within the heart is known as:
systemic circulation
pulmonary circulation
coronary circulation
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Question 8 (True/False Worth 5 points)
Arteries transport blood from the heart to the lungs and back to the heart.
True
False
——————————————————————————–
Question 9 (True/False Worth 5 points)
Pulmonary circulation is the flow of blood through the lungs.
True
False
——————————————————————————–
Question 10 (Multiple Choice Worth 5 points)
Blood returning from the body (systemic circulation) first enters which chamber of the heart?
left atrium
right atrium
left ventricle
right ventricle
Bill M you answered my question about what body systems help you breathe can you or any one else explain how?
(didn’t get to finish question) they work together.-(bill m told me
respiratory
circulatory
muscular
nervous oh yeah thnx bill m
passage of semen from the penis?
hey ppl, this is for my health class and i been trying to get answers but i can’t find them. also, check my other question for male reproductive system 
the question is “the passage of semen from the penis that is the result of a series of muscular contraction”
help with biology please.?
i have read the material but just don’t get this questions any help would be fine!
1.Blood pH level is maintained by the respiratory system.
True
False
2.Blood pressure, urine volume, and other body fluids are regulated by which organ system?
A. Excretory
B. Digestive
C. Circulatory
D. Lymphatic
3.Movement of the body is accomplished directly by the actions of which of these organ systems?
A. Muscular
B. Skeletal
C. Nervous
D. Integumentary
4. A negative feedback loop works by turning off the stimulus that initiated the feedback loop.
True
False
5. Negative feedback loops help the nervous and endocrine systems restore and maintain homeostasis.
True
False
HOMEWORK QUESTION!!! PLEASE HELP!!!!!?
how does the muscular system, nervous system and endocrine system work together
i need to write an essay on that