Characteristics and Functions of Living Organisms in Biology

The video covers biology topics including characteristics of life, biomolecules, cell types, cell cycle, cell division, DNA structure, mutations, genetics, evolution, classification, ecological succession, and symbiotic relationships. It also provides test-taking strategies.

Which of the following is NOT a characteristic of living organisms?

• Ability to exchange gases

• Containment of one or more cells

• Ability to reproduce on their own

• Presence of a nucleus

What is the monomer of proteins?

• Fatty acids

• Amino acids

• Nucleotides

• Sugars

Which type of cell lacks a nucleus?

• Plant cells

• Eukaryotes

• Prokaryotes

• Animal cells

During which phase of the cell cycle is DNA replicated?

• Mitosis

• G1 phase

• S phase

• G2 phase

What is the result of meiosis?

• Four genetically different haploid cells

• Two identical diploid cells

• Four identical diploid cells

• Two genetically different haploid cells

Which nitrogenous base pairs with adenine in DNA?

• Cytosine

• Guanine

• Thymine

• Uracil

What is a heterozygous genotype?

• Two recessive alleles

• Two dominant alleles

• Two different alleles

• Two identical alleles

Which of the following is NOT evidence for evolution?

• Geographic distribution

• Embryology

• Symbiotic relationships

• DNA similarities

What is the first step in primary succession?

• Natural disaster

• Development of a climax community

• Growth of pioneer species

• Formation of soil

In a mutualistic relationship, what happens?

• Both species benefit

• One species benefits, the other is unaffected

• Both species are harmed

• One species benefits, the other is harmed