Biology Lectures
v1.45 · 29.3 MB · code 45
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File information
UpdatedJul 8, 2025
PublishedJul 13, 2021
Packagecom.duhnnae.biologybiologia
Versionv1.45 (45)
Size29.3 MB
MD58286b2fb8ab6f259f14059ce1bfc0590
Min SDK29
Malware scanTRUSTED
Signature SHA1AC:4B:39:75:09:FC:F5:C5:31:B9:25:2A:64:CA:A4:68:6E:F2:D3:A6
SignerCN=Daniel C?rdoba, OU=duhnnae.com, O=duhnnae.com, L=Terrassa, ST=Barcelona, C=es
Total downloads100,000
This version100,000
Developerduhnnae
Age ratingEveryone
What's new in v1.45
New app design for categories.
Added Marine Biology and other courses.
Biology lectures, lessons and books.
Added anatomy - Cell Biology - Genetics.
Added Marine Biology and other courses.
Biology lectures, lessons and books.
Added anatomy - Cell Biology - Genetics.
Security scan
TRUSTED
- Developer signature verified 2025-07-08
- Signature SHA1 AC:4B:39:75:09:FC:F5:C5:31:B9:25:2A:64:CA:A4:68:6E:F2:D3:A6
- File MD5 8286b2fb8ab6f259f14059ce1bfc0590
How to install Biology Lectures v1.45 on Android 10+
Takes about 2 minutes. You'll need roughly 29.3 MB of free storage.
- Grab com.duhnnae.biologybiologia_45.apk — hit the Download button above (29.3 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 8286b2fb8ab6f259…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.duhnnae.biologybiologia_45.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Daniel C?rdoba, OU=duhnnae.com, O=duhnnae.com, L=Terrassa, ST=Barcelona, C=es. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open Biology Lectures — tap Open on the install screen, or find the Biology Lectures icon in your app drawer.
Common install errors for Biology Lectures
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android 10 or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.