nature selection & adaptations.
What does rRNA do?
They carry out proteins.
Who came up with the theory of natural selection?
Charles Darwin.
What are the two methods of dating fossils?
Relative Age, Absolute Age.
What is one pro of Asexual Reproduction?
- no need for a mate.
- saves time not looking for a mate.
- allows organisms to produce large numbers of offspring.
What is central dogma?
DNA to RNA to Protein.
What does tRNA do?
They transfer amino acids to ribosome, matching them to mRNA.
What is natural selection?
Survival of the fittest.
How many mass extinctions are there?
5.
What is budding?
Offsprings grow on the body of the parent.
What is regeneration?
When a offspring grows from a piece of its parent.
What does mRNA do?
Carries instructions from nucles to ribosome.
What happens when traits pass down generations?
Causes the population to change over time.
What are the four geological time units?
Eon, Era, Period, Epoch.
What is one example of a protective behavior?
- Circling
- Nest / den building.
What does gmo mean?
Genetically modified organism.
What three jobs does DNA do?
Storing info, copying info, gene expression.
What is selective breeding?
The selective breeding of an organism for the desired traits.
How do fossils change?
Organisms change as their environment changes.
What are two types of plant reproduction?
Seed and Seedless.
What is one way an animal attracts a mate?
The use of sound, light, chemicals, body language, gift giving, and competition.
What is nucleotides made of?
Nucleotides are made of a nitrogen base, a sugar molecule, and a phosphate group.
Which of the ones are an example of behavioral adaptations?
A: Jack rabbits powerful legs help them run away from predators faster. B: Jack rabbits stay still during some of the hottest parts of the day to conserve energy.
B: Jack rabbits stay still during some of the hottest parts of the day to conserve energy.
What are transitional fossils?
Fossils with characteristics from both ancestors and those who evolved.
What is one example of Innate animal behavior?
- Spiders know how to make webs for catching food.
- Tadpoles hatch already knowing how to swim.
What happens when a ladder becomes tightly coiled?
It forms a chromosome.