Decomposers
What will be an ideal response?
•recycle plant nutrients
•create soil organic matter
-retains nutrients
-maintains soil structure
-holds water for plant use
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Which of the following statements about joints is false?
A. A hinge joint can be controlled by two antagonist muscles, whereas ball and socket joints require at least four sets of muscle antagonists. B. The shoulder is the most mobile joint in the human body. C. A ball-and-socket joint is less stable than a hinge joint. D. Ball-and-socket joints allow motion along three axes, whereas hinge joints limit motion to one axis of rotation. E. The range of motion of a joint is determined by the shapes of the bone surfaces that meet at the joint.
Parthenogenesis is:
A. reproduction by way of diploid females laying diploid eggs that hatch into diploid females B. asexual reproduction by way of budding of a new individual from the parent C. reproduction by way of diploid females laying haploid eggs that require fertilization by sperm D. reproduction by way of haploid females laying haploid eggs that hatch into haploid females E. reproduction by way of diploid females laying haploid eggs that hatch into haploid males who in turn produce sperm that fertilizes other haploid eggs
A ____ mutation changes the DNA sequence but has no impact on the fitness of the individual
a. beneficial b. lethal c. random d. neutral e. deleterious
In summer, a __________ prevents upper and lower waters from mixing. Fill in the blank(s) with the appropriate word(s)