In ferns, some leaves are "fertile" in that they bear sporangia. what are the structures in gymnosperms that are analogous to a leaf and sporangia? select all that apply.
(a)-seed coat and embryo
(b)-cone scale and pollen-producing sporangia
(c)-cones and seeds
(d)-cone scales and ovules

Donde se encuentra el adn nuclear en un organismo eucariota?

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these