Natural Selection & History of Life
Doodles are a very popular mix of dog right now in which people choose to breed their dog with a poodle to reduce shedding. This represents this selection type.
What is artificial selection?
This cell organelle holds the blueprint for each organism.
What is the nucleus?
Diverse offspring is a common advantage of this type of reproduction.
What is sexual reproduction?
In porifera, this cell type lines the canals and is responsible for creating a water current with its flagella and filtering the water with its collar.
What are choanocytes?
We talked about lots of groups of worms. This is the group that is segmented.
What are Annelids?
Male stags grow large antlers to intimidate and fight other males with to get more females. This principal of natural selection is represented.
What is competition?
These cell organelles are considered the powerhouse of the cell because energy is created here.
What is the mitochondria?
This is the correct order of classification.
What is Kingdom, Phylum, Class, Order, Family, Genus, species?
Cnidarians are known as this because they have two embryological tissue layers (the ectoderm and then endoderm).
What is a diploblast?
This is the term for having a true body cavity.
What is a coelomate?
The definition of "fitness" in natural selection.
What is survival and reproduction?
What is the xylem and phloem?
Hyphae is the thread-like, root-like structure of fungi. A mass of hyphae is called this.
What is mycelium?
These cells are found in the mesohyl of sponges and can become many other types of cells. Their main role is digestion of food particles.
What are amoebocytes?
These structures are near the mouth of many annelids and are sensory structures.
What are palps?
Cheetahs have undergone a large reduction in population a few times. This reduces the genetic variation in the population, which is this mechanism of evolution.
What is Bottleneck Effect?
This is the correct equation for photosynthesis.
What is 6 H2O + 6 CO2 + Light→ 6 O2 + C6H12O6 ?
Some salamander species can produce offspring but they are often too weak to make it to adulthood. This is an example of this postzygotic barrier.
What is reduced hybrid viability?
One reason why Cnidarians are considered more complex than Porifera is because Cnidarians have this type of symmetry.
What is radial symmetry?
On planarians, this structure is an external tube towards the middle on the ventral side of their body that they feed with.
What is the pharynx?
A few birds get off course and fly to a new island. They mate and create a population with only the original birds' traits. This mechanism of evolution is shown.
What is Founder's Effect?
These cell organelles are within the leaves of plants and are where photosynthesis occurs.
What are the thylakoids?
Some different species of wheat can reproduce and make viable offspring, but only for one generation. Then the hybrid wheat is sterile. This is an example of this postzygotic barrier.
What is hybrid breakdown?
These structures are secreted by sclerocytes and give sponges their shape.
What are spicules?
This class of freshwater Annelids use their 3 fang like structures to puncture skin and then feed on the blood.
What is Hirudinea?