Ecosystems
What is the term for "the largest number of organisms that an ecosystem can hold"?
Carrying Capacity
What is the term for "the gradual change in a species over time by natural selection"?
Evolution
What does the word "homologies" mean?
Similarities between organisms based on descent from a common ancestor
What are the building blocks of proteins called?
Amino Acids
True or False Ms. O'Neal is a BIG JOCE
true
Which option will reduce competition within a species' population?
A. Fewer individuals
B. Higher birthrate
C. Fewer resources
D. Higher population density
A. Fewer individuals
How does natural selection lead to evolution?
A. Stronger offspring kill weaker members of a species
B. Helpful variations accumulate among surviving members of a species
C. overproduction provides food for the stronger members of the species
D. Environmental changes favor weaker members of the species
B. Helpful variations accumulate among surviving members of a species
Who is LUCA?
The Last Universal Common Ancestor -- the last shared ancestor that multiple organisms diverged from
List the steps of protein synthesis:
Step 1: ____________ turns ________ into ________
Step 2: ____________ turns ________ into ________
Step 1: transcription turns DNA into RNA
Step 2: translation turns RNA into proteins
What else does Ms. O'Neal teach?
DANCE!
In a trophic pyramid, which way does energy flow?
-From producers to consumers
-From plants to herbivores to carnivores
-From plants to prey animals to predators
A physical structure, function, or behavior that allow an organism or species to survive and reproduce in a given environment.
Adaptations
If two species are descendants from the same common ancestor, then those species will...
A. be identical
B. be extinct
C. have no anatomical structures in common
D. have DNA sequences in common
D. have DNA sequences in common
They catalyze or speed up the reaction
What is Ms. O'Neal kids name?
Laylah and Kai
In the food chain: plant parts ---> cricket ---> mouse ---> hawk, which organism is the tertiary consumer?
A. Hawk
B. Mouse
C. Cricket
D. Plant parts
A. Hawk
What is the difference between a phenotype and a genotype?
The phenotype is the physical traits.
The genotype refers to the genes or DNA.
True or False: analogous structures between species are used to determine common ancestry.
FALSE: analogous structures are structures that serve the same function but are not necessarily similar in structure. This means that the 2 species did NOT have a common ancestor.
What is the term for "the repeating units that form a DNA or RNA molecule"?
Nucleotides
When is Ms. O'Neal Birthday?
April 9
Which process uses the following formula:
C6H12O6 + 6 O2 --> 6 CO2 + 6 H2O + energy
Cellular Respiration
The Arctic environment has temperatures that range between -22C and 6C with snow covering some of the area. Which adaptation would most likely help a population of organisms survive this environment?
A. long neck and tails
B. large shell and leathery skin
C. light colored fur and layers of blubber
D. brightly colored feathers and webbed feet
C. light colored fur and layers of blubber
Which statement below would best illustrate the concept of natural selection?
A. an organism can return to the characteristics of its ancestors
B. a population of animals will move from one region to another
C. those organisms that are best adapted to the environment will survive to produce more offspring
D. all organisms are made up of cells
C. those organisms that are best adapted to the environment will survive to produce more offspring
Dad has heterozygous brown eyes and mom has homozygous blue eyes. Brown eyes are dominant to blue eyes. What is the percent chance that their child has blue eyes?
Bb x bb --> 50% chance child has blue eyes (bb)
What college did Ms. O'Neal attend?
THEE Texas Southern University