user1142: In Yoroi I can see that there is some ADA locked up with my native assets:

Can I spend this ADA without the native asset? If I would not care about the native asset, could I create a transaction that only spends the ADA and not the asset?

user4302: In Cardano, each UTXO can contain a heterogeneous mixture of tokens and data, but must contain at least some amount of ADA. This is done on purpose to prevent both inadvertent and malicious chain bloat. Read more about the intricacies of minUTXOvalues here.
On your Yoroi wallet, you probably have a couple UTXO's with token data such that the min amount of ADA in each of those UTXO's totals to the locked amount displayed to you by Yoroi. In your case, it's not much, but if you want to free up the ADA you can always consolidate your assets into fewer UTXOs.

1142: <p>In Yoroi I can see that there is some ADA locked up with my native assets:</p>
<p><a href="https://i.stack.imgur.com/aF46j.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/aF46j.png" alt="enter image description here" /></a></p>
<p>Can I spend this ADA without the native asset? If I would not care about the native asset, could I create a transaction that only spends the ADA and not the asset?</p>
 4302: <p>In Cardano, each UTXO <em>can</em> contain a heterogeneous mixture of tokens and data, but <em>must</em> contain at least some amount of ADA. This is done on purpose to prevent both inadvertent and malicious chain bloat. Read more about the intricacies of minUTXOvalues <a href="https://github.com/input-output-hk/cardano-ledger/blob/master/doc/explanations/min-utxo-alonzo.rst" rel="nofollow noreferrer">here</a>.</p>
<p>On your Yoroi wallet, you probably have a couple UTXO's with token data such that the min amount of ADA in each of those UTXO's totals to the locked amount displayed to you by Yoroi. In your case, it's not much, but if you want to free up the ADA you can always consolidate your assets into fewer UTXOs.</p>
