Sort the terms and phrases as to whether they function in or describe primary growth or secondary growth? Place each term or phrase to the appropriate bin. If the term or phrase describes both primary and secondary growth, place it to the "both" bin. If the term or phrase describes neither primary nor secondary growth, drag it to the "neither" bin.
1) apical meristem
2) cork cambium
3) elongation
4) provides structural support
5) increases exposure to light
6) increases vascular flow
7) growth in thickness
8) occurs in plants that live many years
9) occurs in plants that live only one year
10) lateral meristem
11) vascular cambium
Bins:.
a) primary growth
b) secondary growth
c) both
d) neither

Explanation:

An increase in length of the shoot and the root is termed to as primary growth of a plant. It occurs as a result of cell division in the apical meristem. Secondary growth is identified by an increase in thickness or girth of the plant caused by cell division in the cambia or lateral meristems.

1) apical meristem- primary growth

2) cork cambium - secondary growth

3) elongation - primary growth

4) provides structural support - secondary growth

5) increases exposure to light - primary growth

6) increases vascular flow - secondary growth

7) growth in thickness - secondary growth

8) occurs in plants that live many years - both primary and secondary growth

9) occurs in plants that live only one year - primary growth

10) lateral meristem - secondary growth

11) vascular cambium - secondary growth.

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.