Which drawing in the figure above depicts the electron configuration of an element with chemical properties most similar to helium (2He)?
A) A
B) B
C) C
D) D
E) E
Answer: E
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Which of the following statements describe the condition of fungal spores? Check all that apply.
_____ Spores can be produced asexually. _____ Spores can be produced sexually. _____ Spores grow into mature fungi. _____ Spores are the same as fruiting bodies.
An understanding of the relationship between the structure of elemental substances and their behavior
is the first step in learning biology.
Indicate whether the statement is true or false.A neuron sums all inhibitory and excitatory signals through ________
a. interneurons b. breakdown or reuptake of neurotransmitters c. threshold potential d. synaptic integration
Which of the germ layers gives rise to most of the internal organ systems?
a. mesoderm b. ectoderm c. endoderm d. both the mesoderm and ectoderm