plants can store high levels of nitrate, and they can translocate it from tissue to tissue without deleterious effect. Yet if livestock or humans consume plant material that is high in nitrate, they may suffer with,

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#Question id: 5740

#Unit 8. Inheritance Biology

Pollen from one species germinates on the stigma of another related species and sexually fertilizes the ovule. Most of the resulting plants are sterile but some of the resulting offspring undergo chromosome duplication resulting fertile plants. The fertile offspring are known as

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#Question id: 12588

#Unit 10. Ecological Principles

According to the equilibrium model of island biogeography, species richness would be greatest on an island that is

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#Question id: 10909

#Unit 6. System Physiology – Plant

The energy is essential for some aspects of movement from sieve elements to sink cells, which store or metabolize the sugar. This movement of photosynthate from sieve elements to sink cells is called

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#Question id: 3029

#Unit 2. Cellular Organization

Which of the following obtain energy by oxidizing inorganic substances; energy that is used, in part, to fix CO2?

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#Question id: 323

#Unit 1. Molecules and their Interaction Relevant to Biology

When the atoms involved in a covalent bond have the same electronegativity, what type of bond results?