chlorophyll a – photosynthetic pigment which participates directly in the light reactions to convert solar energy to chemical energy
Nitrogen-fixing bacteria – Bacteria found free living in the soil or in the root nodules of some plants that convert nitrogen gas into nitrate.
Chloroplasts – the photosynthesizing organelles of all photosynthetic eukaryotes
hydrophilic – "Water-loving"; pertaining to polar or charged molecules (or parts of molecules) that are soluble in water.
isotopes – atoms of the same element with different numbers of neutrons.
Niche – The way of life of organisms in an ecosystem; roles of species in a community
What is variation? – The differences between individuals of the same species, that come about as a result of either genetic or environmental factors.
autosomal gene – traits found on chromosomes 1-22 (i.e. hair texture)
heart attack – The damage or death of cardiac muscle cells and the resulting failure of the heart to deliver enough blood to the body.
Mitochondrion – Cell organelle that converts the chemical energy stored in food into compounds that are more convenient for the cell to use
The indicated layer is:
artificial selection – The selective breeding of domesticated plants and animals to promote the occurrence of desirable traits.
solution – Homogeneous mixture formed when a substance (the solute) is dissolved in another substance (the solvent).
Translocation – The process by which organic substances move through the phloem of a plant
hyposecretion – The production of too little of a substance.
The indicаted lаyer is:
Anion – a negatively charged ion (gained an electron)
character displacement – when competition causes two closely related species to become more different in regions where their ranges overlap
Ribonucleic acid – (RNA) part of the genetic material that organisms inherited from their parents