The adaptations that are most responsible for gymnosperms and angiosperms being able to live and reproduce in much drier habitats than bryophytes and plants such as club mosses are:
a. The production of spores and gemmae
b. The production of seeds, spores, and fronds
c. The production of vascular tissue, spores, fronds, and gemmae
d. The production of pollen grains and seeds
e. All of these are correct
Answer: d. The production of pollen grains and seeds
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The organic matter in soil is referred to as
A. mineral soil. B. inorganic substance. C. bedrock. D. humus.
Inheritance of autosomal dominant disorders require to pass on the allele, while inheritance of autosomal recessive disorders require to pass on the allele for it to be expressed in the offspring.
A. either the mother or the father; both the mother and the father B. only the mother's X chromosome; only the father's Y chromosome C. the parent who has the disorder; the parent who is a carrier for the disorder D. only the father; only the mother E. All of the answer choices are correct.
What types of mutations are the most harmful, and why?
What will be an ideal response?
What is believed to be the origin of both mitochondrial and chloroplast organelles?
What will be an ideal response?