Weekly Review 22

The basic units ^{"smallest living"} of structure in all living things are 

• nuclei
• tissues
• organelles
• cells

This Chemical Formula represents the biological process of 

• Photosynthesis
• Meiosis 
• Cellular Respiration
• Carbon Cycle 

A _______ allele is one whose trait always shows up in the organism when the allele is present. 

• dominant
• recessive 
• co-dominance 
• regressive 

An organism has two different alleles for a trait. 

• genetics
• DNA
• Hybrid
• Mitosis

The passing of physical characteristics from parents to offspring is known as the study of 

• transference
• Heredity 
• Mutation
• fertilization 

the part of the plant cell that makes it's own food

• cell membrane

• nucleus

• mitochondria

• chloroplast

this part of the plant and animal cell turns food into energy

• cytoplasm

• nucleus

• mitochondria

• cell membrane

This part of the cell keeps all the organelles inside the cell and allows things into and out of the cell.

• cytoplasm

• liver

• cell membrane

• nucleus

What is the correct order from smallest in hierarchy of living things?

• cells-tissues-organs-organ systems-organisms

• tissues-organs-cells-organisms-organ systems

• cells-organs-tissues-organ systems-organisms

• organs-organ systems-organisms-tissues-cells

this part of the cell regulates the activities of the cell's organelles.

• cell membrane

• cell wall

• nucleus

• mitochondria