A group is considered monophyletic if
A. all members of the group share a common ancestor that is included in the group.
B. not all descendants of the common ancestor are included.
C. all members share homoplastic traits.
D. the group does not contain the most recent common ancestor.
E. it is the most parsimonious grouping.
A. all members of the group share a common ancestor that is included in the group.
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In the male reproductive system, the ____________________ secretes a milky, alkaline fluid that neutralizes acidic vaginal secretions and enhances sperm viability
Fill in the blank(s) with correct word
Diseases such as ulcers and cardiovascular disease
A. have been shown to be, or may be due to, a bacterial infection. B. are solely due to lifestyle. C. are solely due to genetics. D. are due to new mutations in bacteria.
Soil nutrients that are leached from soils into ponds or other bodies of water can contribute to such phenomena as: (Check all that apply)
_____ Reduced production of water plants _____ Excess growth of certain algae _____ Increased nutrients for land plant growth _____ Reduced fertility of soils
Where does fertilization take place in the female reproductive system?
a. vagina b. ovaries c. oviduct d. uterus