Choose any behavior in any animal you wish (one that we have not discussed at length in class) and explain that behavior from each of Tinbergen’s four levels of causation (proximate, ontogenetic, adaptive value, evolution).

Ls4208_endsem_2016

The question is from marine biology.

2. Fifteen of the sixty known species of seagrass worldwide occur in Great Barrier reef - Elucidate this statement from the context of seagrass biology (10 marks)

Some etiolated seedlings develop hairs on their epidermis when exposed to dim light. Describe an experiment to test the hypothesis that a phytochrome is the photoreceptor for this effect.

Scientist looked for the flowering hormone, which they named florigen for many years and finally have found it. What is florigen, i.e., what type of molecule? In what cells does it move throughout the plant? Does it act alone? (You do not need to know the detail but just the general concept of what happens in response to the correct environmental signal.)

Microbiology

What type of metabolic interaction among microorganisms occurs in the rumen and what two types of prokaryotes are involved? How is each affected by these interactions?

When the protein comes out of the ribosome it may not be finished. What else may be needed to be done to the protein and how is it done? (Hint, chaperones, sugars and more.)

subsidiary cells- would this be cells that surround the guard cells and aid in their function.

Three different types of cell arrangements are the stomata? would this be correct

paracytic

Diacytic- orientation is at a right angle to the orientation of guard cells

Anisocytic- not equal around guard cells

Amphistomatic- stomata are on both sides of leaf, top and bottom

Hypostomatic- stomata are on the underside of leaf

These were the questions - the above are what i think the answers would be.

What is the name for the cells that surround the guard cells and aid in their function?

Describe in words or labeled pictures the three different types of cell arrangements around the stomata?

In the original eye deprivation experiments Hubel and Wiesel closed one eye of a few days old kitten. A couple of month later they measured neuronal activity in the contralateral V1. What did they find?

Group of answer choices

They found mostly monocular cells.

They found mostly ocular dominance category 2 through 6 type cells.

They found mostly binocular cells.

They found that the receptive field of V1 neurons became large and nonspecific.

They found that V1 neurons no longer responded to visual stimulus.

Name three racial or ethnic disparities that exist in the practice or enforcement of current U.S. drug laws

Identify an unsolved problem about the microbiota that will be best solved through systems biological approaches.

What problem are you trying to solve? Why is it important?
What will be the objective of the study?

Does the somatosensory cortex have a columnar organization similar to the visual cortex?

a. Yes, alternating columns contain neurons responding to pleasant and aversive stimuli

b. No, columnar organization doesn’t make sense in the somatosensory system because the receptor types are too diverse to dedicate a full column to each sensory attribute.

c. No, the body is already represented several times in the somatosensory cortex, with different modalities assigned to different brain regions

d. Yes, alternating columns contain neurons responding to inputs arriving on the surface of the body and internal receptors

e. Yes, alternating columns contain neurons linked to slowly and rapidly adapting receptors.

Does management impact the carbon cycle?

Which of these attributes are similar between the visual and somatosensory systems?

a. All axons that carry information from the periphery are myelinated

b. All of these answers are correct

c. Topographical organization

d. Peripheral information reaches the cortex via the LGN

e. Peripheral receptors depolarize in response to environmental stimuli.

Is bipedalism a uniquely human trait? What makes us morphologically human and different? Expound on the uniqueness of humans compared to some of our closest relatives. Think behavior, neurological, social etc.?