The amount of light, temperature, and precipitation affect these large areas of the surface of the Earth. An example is that star fish usually live in the Neritic Zone.
What are biomes?
100
Some starfish are able to reproduce asexually but others go through a process that ends up with unique individuals. The laws that are related to chromosomes uniquely sorting themselves and that each gene gives only one allele. The laws are respectively
What are the laws of independent assortment and segregation.
100
Starfish can be put on charts that show it having bilateral symmetry, a complete gut, and then adding an endoskeleton as part of how it has changed over time. These charts are
What are dichotomous keys?
100
The primary elements that make up starfish are CHNOPS. These elements are
What is Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorous, Sulfur?
100
We could create a(n) _________________ if we knew how many starfish were alive at each possible age in a given population. They can live to up to 34 years.
What is population pyramid?
200
The total weight of starfish in a given area.
What is biomass?
200
Starfish do have a centralized brain but have the ability to sense light and a motor neurons to help maintain balance. This part of our nervous system is
What is peripheral nervous system?
200
Starfish change over time. This concept is
What is evolution?
200
Starfish have adaptations that allow them to live in salt water, the solution of saltwater for starfish cells is a(n)
What is isotonic solution?
200
The phases of mitosis for starfish cells are
What are Prophase, Metaphase, Anaphase, Telophase?
300
Experimental removals of these species resulted in lower species diversity and allowed an herbivorous mussel to take over. Starfish are the most important species in an ecosystem.
What is keystone species?
300
While humans have used starfish for food, they are not a big enough demand to change their genetics so they would be a(n)
What is Genetically Modified Organism?
300
The names of the levels of classification are
Eukarya
Animalia
Echinodermata
Asteroidea
Paxillosida
Astropectinidae
Astropecten
duplicatus
What are Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
300
What are the 6 properties of water that allow starfish to live?
What are
a. Polar
b. Hydrogen bonds
c. Surface Tension
d. Resist temperature change
e. Expands when it freezes
f. Universal Solvent
300
A tsunami comes and carries away most of a starfish population, this affect on them is an example of
What is density independent factors?
400
Some starfish coral reef habitats have been destroyed by humans. The coral reefs can grow back from nothing or if there is a little be left.
What is succession?
400
Depending on the species of starfish, some act aggressively and some retreat when covered in darkness. So a starfish senses darkness and then moves away from darkness until it is in the light. It sense the light and then it stops moving. This system is an example of
What is negative feedback?
400
There are four pieces of evidence that help tells us how a starfish evolved.
What are fossils, embryology, anatomy, biochemistry?
400
Starfish neurons are able communicate through these areas between neurons.
What are synapses?
400
Starfish cells have an organelle that prevents things from coming or going out unless they selected to move through it. This organelle is
What is the plasma membrane?
500
Draw a nutrient cycle that includes Algae-->Mussels-->Starfish as part of the cycle.
See drawing.
500
Starfish rarely have out of control cell division that result in tumors spreading to different parts of their body. This would be
What is cancer?
500
Starfish have adapted to be able regrow their limbs. This must be an advantage to survive predatory attacks. They acquired this adaptation by individuals reproducing who could regrow larger and larger parts over generations.
What is natural selection?
500
Starfish have a sense of touch, this is a type of ____________ sense