What is the name given to organisms that can make their own food and thus sustain themselves without consuming organic molecules derived from other organisms? 

Diffusion does not require the cell to expend ATP. Therefore, diffusion is considered a type of 

Which of the following molecules is a reactant of photosynthesis? 

CO2 enters and O2 escapes from a leaf via 

A packet of light energy is called a 

Which of the following represents one of the largest expenses of the US federal government?  

Which of the following presents the LEAST security risk?

Identify the characteristics of acute and chronic conditions (use all available options): 

Construct a Huffman tree for a file that contains a single string “dsa is dsa”. Use the following constraints when building the tree:  the node with a lower frequency is attached to the left in case two nodes are merged after extraction from the priority queue; if two nodes have the same priority when merging, then the merged nodes are resolved as follows: if both nodes have letters (a.k.a. left nodes) then the letter with lower ascii value will be the left node when combining two nodes into a tree. Ascii value of space is 32, a is 97, d is 100, i is 105 and s is 115. if one or both nodes have cumulative frequencies, then the node with more number of nodes in the tree will be attached to the right, in other words, the smaller tree will be towards the left. traversing left from a node appends ‘0’ to the Huffman code and traversing right appends ‘1’.  Decode the following Huffman code using the tree: 01000111111010

The optimal temperature for a given cell culture is dependent on the body temperature of the organism, serving as the source of the cells. For example, in birds it is 38°C