Editing links contained within the header

I’ve found the code for the links that appear in the header (home and about)

<div id="menu">
<div id="navigation">
<li <?php if(is_home()){echo 'id="amenu"';}?>><a href="<?php bloginfo('siteurl'); ?>" title="Home">Home</a></li>
	<?php wp_list_pages('title_li=&depth=1');?></div>

Is it possible to change the links in the header to my own links or remove them without screwing the whole code up?

Here’s my blog: https://zygosgames.com/blog

Sorry if this is a noob question