Biology EOC Vocab Crossword

one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
a film two molecules thick, in which each molecule is arranged with its hydrophobic end directed inward toward the opposite side of the film and its hydrophilic end directed outward.
the total mass of organisms in a given area or volume.
a green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis
factors which make populations resistant to evolutionary change.
the material or protoplasm within a living cell, excluding the nucleus.
the collection of glands of an organism that secrete hormones directly into the circulatory system to be carried towards distant target organs.
the tidal mouth of a large river, where the tide meets the stream.
a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores.
messenger RNA.
the specific area or role / function of an organism or species has in an ecosystem.
plural form of ovum.
a colorless unstable toxic gas with a pungent odor and powerful oxidizing properties, formed from oxygen by electrical discharges or ultraviolet light.
a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid, and higher values more alkaline.
the practice of questioning whether claims are supported by empirical research and have reproducibility.
able to be dissolved, especially in water.
a minute, typically one-celled, reproductive unit capable of giving rise to a new individual without sexual fusion, characteristic of lower plants, fungi, and protozoans.
a solution in which the solvent is water.
transfer RNA.
a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid