Life Science Review

The basic unit of structure and function in living things is the

• cell

• nucleus

• mitochondria

• mitosis

The thin structure that surround a cell is knows as

• nuclear membrane

• guard cells

• Cell membrane

• mitochondrian

The process by which cells reproduce is

• cell division

• mediocre

• cell replication

• vacuales

Cell structures that breaks down food to produce energy are the

• nucleus

• vacuole

• mitochondria

• cell membrane

All of the following are found only in plant cells except

• vacuoles

• cell walls

• chlorophyll

• chloroplasts

characteristics of an organism are called

• alleles

• traits

• homozygous genes

• heterozygous genes

an organism with two like genes for a trait is said to be

• heterozygous

• homozygous

• haleozygous

an organism with two unlike genes for a trait is said to be

• heterozygous

• homozygous

• haleozygous

The idea that living things come from nonliving things is called

• creation

• transportation of materials

• spontaneous generation

All of the following statements are true about every organism except

• all organisms use energy

• all organisms are made up of cells

• all organisms grow and develop

• all organisms reproduce by fission