Bio 2 1'st Exam Review

What subjects are the most difficult for you? If it isnt one here you can write it out in the next question

• Evolution(speciation, phylogenetics)

• Ecology(niche partioning, rule of 10)

• Molecular Movement(osmosis, diffusion)

• Plant Physiology(cohesion, tension, pressure flow model)

• Cellular Mechanisms(cellular respiration)

Are there any particular parts of the concepts you dont understand at the moment? If what you dont understand wasnt in the poll you can write it out now

The four main mechanisms of evolution are

• Genetic Drift

• Fitness

• Mutation

• Natural Selection

• Gene Flow

What does Darwin's theory of evolution suggest?

• species change over time
• extinct species are not related to living species
• different species can interbreed
• animals that look alike are most closely related

The study of embryological development provides anatomical evidence for evolution because...

• all vertebrate embryos pass through the same stages of development in the same sequence.

• all vertebrates are born with gills and a tail.

• all vertebrate embryos have completely different stages of development that look nothing alike.

• all plants and animals have wings, even if you can't see them when they are born.

In the given picture imagine the red and blue particles are solutes contained in containers seperated by a water permeable partition. What way would the water flow?

• To the right

• To the left

Answer explanation

To the left as due to there being fewer solutes there is a lower concentration of water on the left side

Osmosis it the diffusion of __________.

• water

• glucose

• air

• passive transport

DIFFUSION THROUGH A MEMBRANE IS...

• ACTIVE TRANSPORT

• OSMOSIS

• CROSS-MEMBRANATION

• EXOCYTOSIS

Diffusion is a form of...

• Active Transport

• Passive Transport

How does diffusion work?

• It moves up a concentration Gradient

• It moves down a concentration gradient

• It moves from Low to high