Yes, one on the front and one on the back.
Nexus 7 tablet 2013 Has a front and rear Camera.
Yes, the Nexus One has a rear 5 MP camera with an LED flash.
In the 2012 Nexus 7, it came with a single camera (in the front). The 2013 Nexus 7 has two cameras, one in the front and one in the back.
Much like a camera app on an Android phone, the Nexus 7 also has its own camera app. If you have the 2012 Nexus 7, it has one front-facing camera. On the 2013 Nexus 7, you have a front- and rear-facing camera. The app is defaulted to the rear-facing camera, but it can be toggled depending on your needs.
The initial release of the 2012 Nexus 7 did not have the camera app installed, but future OS updates should have installed the app. If one still isn't installed on your Nexus 7, you can download a third party camera app, and it should function the same way as a smartphone camera app. The 2013 Nexus 7 should have the camera app pre-installed.
Yes. On the first generation Nexus 7 (2012), it has a front-facing camera. On the second generation Nexus 7 (2013), it has both front and rear-facing cameras.
nexus 10
Yes, it does.
Yes, but only on the front, no camera on the back, so you can only take selfies
It has both a front and rear camera.
Yes. It has 16GB of memory.
You would need to check with the manufacturer on that, which in the case of the Nexus 10 is Samsung.