Can someone check my answers. i will fan and give medal.

1) due to a car accident, a young woman suffered an injury to her spinal cord at first lumbar vertebra. what major function could be lost due to her injury?

a) walking ** my choice **
b) chewing
c) breathing
d) pushing

2) a young diver injures the right dorsal root of his first lumbar vertebra a failed dive. what major functions could be lost due to his injury.

a) movement in his lower extremities
b) sensation in his lower extremities
c) control of the right section of his lower body ** my choice **
d) sensation in the right section of hi

3) a boy cuts his hand while playing in the park. the stimulus reaches the interneurons. what nerve pathway will the stimulus signal continue to follow in order to life his hand from the sharp object.

a) motor neuron, effector
b) motor neuron, receptor
c) sensory neuron, effector
d) sensory neuron, receptor ** my choice **

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".