Biodiversity
What level of biodiversity refers to the variety of genes within a species?
a) Genetic diversity
b) Species diversity
c) Ecosystem diversity
d) Functional diversity
a) Genetic diversity
The best-adapted organisms are more likely to survive and breed. This is called..
a) selective breeding
b) natural selection
c) mutation
d) evolution
b) natural selection
1. The trachea and bronchi are part of which organ system?
a) Digestive
b) Respiratory
c) Circulatory
d) Excretory
b) Respiratory
Where is genetic information stored in a cell?
a) Cytoplasm
b) Nucleus
c) Cell membrane
d) Mitochondria
b) Nucleus
Name 3 abiotic & 3 biotic factors that can be found in an environment.
Abiotic
- Rocks, the sun, soil, air, water
Biotic
- Fungi, plants, animals, bacteria
Darwin observed the finches (a type of bird) on the Galapagos island were similar in form except for variations of their beaks. He deduced that these variations were useful for
a) surviving the cold
b) attracting a mate
c) getting food
d) building nests
c) getting food
Which organ is responsible for filtering waste from the blood?
a) Liver
b) Kidney
c) Stomach
d) Pancreas
b) Kidney
What does DNA stand for?
a) Deoxyribonucleic Acid
b) Dioxyribose Nitrogen Acid
c) Double Helix Nucleotide Arrangement
d) None of these
a) Deoxyribonucleic Acid
Name 3 factors that are contributing to the loss of biodiversity
- Pollution
- Deforestation
- Invasive species
-etc...
What role do mutations play in evolution?
a) They decrease genetic diversity in a population
b) They provide new genetic variations on which natural selection acts
c) They kill organisms and their offspring, leading to natural selection
d) They stop evolution
b) They provide new genetic variations on which natural selection acts
Arrange the following parts of the small intestine through which food passes during digestion:
a) Ileum
b) Duodenum
c) Jejunum
Duodenum, Jejunum, Ileum
Differentiate between genotype and phenotype with an example
Genotype: genetic makeup (ex: TT)
Phenotype: physical trait (ex: tall)
Taxonomy levels order organisms in common groups from most general to most specific.
Order the following: phylum, order, genus, family, species, domain, kingdom, class
Explain, in your own words, what evolution is.
Evolution is the change/development in the heritable characteristics of biological populations over many generations.
Name the main functions of the circulatory system.
Name the 4 nitrogen bases in DNA.
adenine (A), guanine (G), cytosine (C), and thymine (T)
What are eukaryotic cells? Describe the characteristics of these cells.
- A type of complex cell found in organisms like animals, plants, fungi, and protists
- Have a membrane bound nucleus & organelles
- Have a cytoskeleton
- Have multiple linear chromosomes
Explain, in your own words, what natural selection is.
Natural selection is the process where organisms with traits better suited to their environment are more likely to survive and reproduce, passing those advantageous traits to their offspring.
Name 5 parts of the digestive system.
- Stomach
- Epiglottis
- Esophagus
- Small intestine
- Large intestine
If a heterozygous tall plant (Tt) is crossed with a homozygous short plant (tt), what percentage of the offspring are expected to be tall?
a) 0%
b) 25%
c) 50%
d) 100%
c) 50%