With age, the tissues making up a heart valve can lose flexibilty
300 joules of energy. 10% is lost as you go up the pyramid
Answer:
a.growing trees
Explanation:
growing trees decreases the level of co2 by taking in the co2 and convert it to oxygen
Answer:
I Think this
directly provide leaf cells with the water involved in photosynthesis
Explanation:
Answer:
D
Explanation:
All the body's systems are linked together in some way. They all interact to produce a fully functioning organism.
A is not correct, becomes hormones are part of the endocrine system, not the immyne system.
B is not correct, because they are not explicitly involved in homeostasis
C is incorrect, all the systems are always working in the background.
The correct answer is D, one way in which the two systems are linked is that the cells of the immune system need to circulate around the body. The circulatory system is incredibly important for this, ensuring that the cells can reach their target sites
