Which statement about plant classification below is true? a. no nonvascular plants bear seeds, but not all vascular plants bear seeds b. not all nonvascular plants bear seeds, but all vascular plants do bear seeds. c. all vascular plants are angiosperms, but not all nonvascular plants are mosses. d. not all angiosperms produce flowers, but all gymnosperms produce cones.

B. Not all nonvascular plant bear seeds, but all vascular plants do bear seeds.

Explanation:

A. No nonvascular plants bear seeds, but not all vascular plants bear seeds

Explanation:

Nonvascular plants are those that do not have conductive vessels (xylem and phloem), in addition, nonvascular plants do not have seeds, fruits or flowers.

Some examples of nonvascular plants are mosses and liverworts.

Most vascular plants (have conductive vessels) have seeds, as in the case of angiosperms and gymnosperms, however, there are also some species of seedless vascular plants, represented by the lycopods and especially the pteridophytes, which are in greater number.

Examples of seedless vascular plants: ferns and horsetails.

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."