Biodiversity – Notes for Unit Project

Bio 11

CirculationHeart

pumps blood

Location of blood Example

Open circulation

Blood pumped from heart into body cavity where it surrounds tissues

Insects, mollusks

Closed circulation

Blood always enclosed in blood vessels i.e. veins, arteries

humans, fish, frogs, worms

Not all organisms have a circulatory system

Some use diffusion from digestive tract to get nutrients and oxygen where they need to go

Some use diffusion across the cell membrane to get the necessary gases for life into the cell

Plants do have a circulatory system; however, it is not blood that is circulating

Corporal structure/ Division of work

Some organisms have only cellular structure (i.e. organelles, membranes)

Multicellular organisms likely have a more complex structure and division of work i.e.

cells with similar structures/functions form tissues Tissues with similar structures/functions form

organs Organs work together to form systems

Types of Symmetry Very important in Kingdom Animalia but

applicable to others as well Vocab:

Dorsal surface = back Ventral surface = front (ventral = stomach) Anterior = head Posterior = end opposite head Symmetrical = has symmetry Asymmetrical = doesn’t have symmetry *state this if your

organism/ Kingdom doesn’t demonstrate symmetry

Types of Symmetry Bilateral symmetry: dividing the

organism in 2 along one central line only creates 2 mirror images

Types of Symmetry Radial symmetry: the body is organized

around a central vertical axis. No right or left sides. Cutting through central axis at any point produces 2 halves that are mirror images.

Key words to explain or diagram (+ others you come across): Provirus, retrovirus Anaerobic Binary fission, conjugation, endospore Flagella, cilia, eyespot, pseudopod,

micronucleus, macronucleus Mycelium, hypha Vertebrate, invertebrate Xylem, phloem, stomata, pollination