cells
What do most organisms do to perform specific internal functions?
cell specializations
In DNA, thymine always pairs with _____?
adenine
What are the systems of a multicellular organism.
excretory and digestive circulatory and respiratory reproductive and endocrine skeletal and muscular.
An "allele" is best defined as __________.
a specific form of a gene
What is a multicellular organism?
A group of organs systems working together to perform a specific function forms this.
Red blood cells transport oxygen throughout the body, platelets aid in blood clotting, and white blood cells help destroy and remove old cells and foreign substances. This is an example of how A. every part of the body contains different cells with unique and unrelated functions. B. only similar cells are grouped together so they can perform a singular function. C. different cells are unable to be grouped together within the same organ or organ system. D. the cells of the body are of different kinds and are grouped in ways that enhance how they function together.
D
Cells store genetic information in DNA. That genetic information is used to synthesize _______.
proteins
Structures consisting of two or more tissue types that work together to perform specific functions are called
organs
What is the function of a network of long filaments/microfilaments?
This enables the movement of structures.
What is a group of cells working together, such as in bones, muscles, or nerves, known as _______.
A tissue
What are daughter cells?
cells that are genetically identical to both each other and to the parent cell.
Identify the double-stranded biological molecule that stores information in the form of a code.
DNA
The solid waste products that are generated during digestion are removed from the human body by the
excretory system
genome → ? → DNA → gene Identify the the missing category of genetic material.
Chromosome
Movement of the human body is possible because the bones of the skeletal system are connected by tendons to the body's _______ system.
muscular
The control center of a cell is the _____________.
nucleus
Mutations are:
Produce allelic variation and are more likely to be harmful then beneficial.
Which three organ systems interact to obtain, process, and transport oxygen and nutrients to all of the body's cells?
circulatory system, digestive system, respiratory system
Cells contain specialized parts, known as organelles, to perform specific tasks, such as waste disposal, protein building, and movement. Even though these basic cellular functions occur in all cells___
all cells do not perform the same exact functions in multicellular organisms.
what is the levels of organization in order from simplest to most complex.
organs → organ systems →cells →whole organisms→ tissues
What is the amino acid sequence function?
This determines the sequence of nucleotides in the DNA template.
_______, which are encoded by DNA, are responsible for the traits we observe in an organism.
Proteins
What are the different forms of energy required by living systems?
glucose and ATP
What is the main function of nucleic acids?
carry genetic material that helps to create structures inside the cell.
What human organ system is responsible for exchanging gases with the outside environment?
respiratory system