2 Kayaks have been used for thousands of years to hunt and fish in Arctic regions.
The total volume of a particular kayak is
285 litres (which is 0.285 m). It has a mass of
75 kg. The man using it has a volume of
0.066 mº. When sitting in the kayak, half of
man's volume is inside the kayak. The density
of the human body is about 1000 kg/m.
a Calculate the density of the empty kayak.
b Calculate the mass of the kayaker.
c What is the overall density of the kayak and the kayaker when it is being paddled?

Which of the following are responsible for sending messages from the hypothalamus to the thalamus?

Evolution acts upon the population of organisms and not on each individual organism

The us council on environmental quality, the world wildlife fund of the united states, the ecological society of america, the smithsonian institution, and the international union for the conservation of nature have proposed four principles of wildlife conservation. which of the following does not apply to wildlife conservation? a) continuous monitoring, analysis, and assessment b) ecosystem maintenance that includes wildlife c) a plan encompassing entire communities of organisms and all renewable resources d) a continued interest in harvesting populations for sport