The large organelle in eukaryotic cells that directs cell activities and contains important cellular
What is a nucleus?
Tissue that causes movement
What is muscle tissue?
The basic functioning unit of the nervous system
What is a neuron?
An organism's genetic material
What is DNA?
Slight differences in inherited traits among individual members of a species
What are variations?
The small structure inside a nucleus that produces ribosomes
What is a nucleolus
Tissue that provides structure and support and often connects other types of tissue together
The part of the nervous system made up of the brain and spinal cord
What is the central nervous system
A type of nucleic acid that carries the code for making proteins from the nucleus to the cytoplasm
An adaptation that enables a species to blend in with its environment
What is camouflage?
Long chains of amino acids that are used for communication, structure, and transport
What are proteins?
Tissue that forms the protective outer layer of skin and the internal lining of the body
What is epithelial tissue?
Special structures that detect stimuli; you have different ones for each sense
What is a receptor?
The four bases found in DNA
What are A, C, T, and G?
The process by which individuals with variations that help them survive in their environments live longer, compete better, and reproduce
What is natural selection?
A firm structure that protects some cells from attack by harmful organisms
What is a cell wall?
Tissue that carries messages to and from the brain
What is nervous tissue?
What is the retina?
The base found only in RNA
What is U?
An inherited trait that helps a species survive in its environment
What is an adaptation?
Saclike organelles that store food, water, and waste material
What are vacuoles?
Groups of different tissue working together to perform a particular job
What are organs?
The type of cell in the retina that detects color
What are cones?
What DNA stands for
What is deoxyribonucleic acid?
The man who developed a theory of how organisms change over time
Who is Charles Darwin?