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Week 31 Spelling Words

Horizontales
The science of life and of living organisms, including their structure, function, growth, origin, evolution, and distribution and encompassing numerous fields such as botany, zoology, mycology, and microbiology.
Any of two or more substances that have the same molecular formula but differ in the way their atoms are connected to each other, in the spatial orientation of their atoms, or, in the case of large molecules such as DNA, in their molecular topology.
The deflection of a wave, such as a light or sound wave, when it passes obliquely from one medium into another having a different index of refraction.
A dark-pigmented, usually malignant tumor arising from a melanocyte and occurring most commonly in the skin.
Any of various prokaryotic microorganisms of the domain Archaea, being genetically distinct from bacteria and often living in habitats with extreme environmental conditions such as high temperature or salinity
The wave function of an electron in an atom or molecule, indicating the electron's probable location.
An inactive substance or preparation used as a control in an experiment or test to determine the effectiveness of a medicinal drug.
The synthesis of organic compounds by certain bacteria, especially in deep-sea hydrothermal vents, using energy obtained from the chemical oxidation of simple inorganic compounds. Chemosynthesis is thought to have been used by the first forms of life on Earth.
Members of this species had a large skull and stocky build and are associated with Middle Paleolithic tools.
The process or skill of communicating in or deciphering secret writings or ciphers.
Any of a group of glycoproteins that are produced by different cell types in response to various stimuli, such as exposure to a virus, bacterium, parasite, or other antigen, and that inhibit infection through mechanisms such as preventing viral replication or regulating the immune system.
A sensory system in certain animals, such as bats and dolphins, in which usually high-pitched sounds are emitted and their echoes interpreted to determine the direction and distance of objects.
An anxiety disorder characterized by intense fear or anxiety about being in open or public places.
Verticales
This amount of energy regarded as a unit.
The act or process of splitting into parts.
Any of a group of peptide hormones that bind to opioid receptors and act as neurotransmitters. Endorphins reduce the sensation of pain and affect emotions.
An organism's genetic material.
The elementary particle of light and other electromagnetic radiation; the quantum of electromagnetic energy.
A spherical or elongated organelle in the cytoplasm of nearly all eukaryotic cells, conning genetic material and many enzymes important for cell metabolism, including those responsible for the conversion of food to usable energy.
A finite set of unambiguous instructions that, given some set of initial conditions, can be performed in a prescribed sequence to achieve a certain goal and that has a recognizable set of end conditions.