Level Up
The smallest level of structural organization in an animal body.
Cell
The process animals use to make more cells for growth and repair.
Mitosis
Name the four nucleotide bases found in DNA.
adenine, cytosine, guanine, and thymine
These cells contract to create movement.
Muscle cells
Name the four major tissue categories found in animals.
muscular, nervous, connective, and epithelial tissue
A group of specialized cells working together to perform a specific function.
Tissue
Mitosis produces this number of daughter cells.
two daughter cells
A DNA sequence made of three nucleotides.
Codon
These cells send impulses and communicate with other cells.
Nerve cells
This type of muscle attaches to bones and produces movement.
skeletal muscle
A group of tissues working together to perform a specific function.
Organ
A cell containing a complete set of chromosomes.
Diploid Cell
Each codon contains information for one of these protein building blocks.
amino acid
These nervous-system cells support and protect neurons.
glial cells
This muscle is found in hollow internal structures, while another type forms the heart wall.
What are smooth muscle and cardiac muscle
A group of organs working together to provide a common function.
Organ System
Animals grow mainly because their cells increase in this way.
cell number/amount
These molecules lead to cell specialization and visible differences among cells
proteins
Match these bone cells to their jobs: build bone, break down bone, and maintain mature bone.
osteoblasts, osteoclasts, and osteocytes
Epithelial tissue with one layer is called this, while epithelial tissue with several layers is called this
What are simple epithelium and stratified epithelium
Put these levels in order from largest to smallest: tissue, organism, cell, organ system, and organ.
organism → organ system → organ → tissue → cell
Describe the result of mitosis using chromosome number and genetic similarity
two genetically identical diploid daughter cells
cell changes its gene expression and becomes specialized through this process.
Cell differentiation
hese bladder cells slide past one another so the organ can expand and contract.
transitional epithelial cells
Adipose tissue, bone tissue, and loose tissue all belong to this supportive tissue category.
connective tissue