LIFESCI 15 · Dis 1A
Life: Concepts and Issues
Seats, time, final and grades
Seats
Closed.
24 of 24 enrolled.
Meets
R 11:00am-12:15pm
This discussion only. You also attend Lec 1.
Final
Mon 7 Dec, 8:00am to 11:00am
One exam for the whole class, Los Angeles time.
Read 14 hours ago.
Grades
3,594 letter grades, everyone who has taught LIFESCI 15.
Read 25 minutes ago. This is a recent reading, not a live seat count.
dibs has seen this section open 26 times since 17 August. The last time was 30 September. 11 of those were readings where the capacity figure moved and the enrolled count did not, so dibs could not tell whether a seat existed and did not send an alert.
Watching is the one thing here that needs an account, because an alert needs somewhere to go. Everything else on this page works signed out.
Put this class on a board
A board is one quarter you are drafting, so it needs an account to live in. Signing in brings you straight back to this page, with this class still in front of you.
Before you can enroll
From the registrar limited early, then open
Conflicts between examinations and activities in other courses cannot be accommodated, so avoid conflicts when enrolling. Due to the curriculum of this course, enrollment will be closed by 3:00 p.m. on Friday, October 9, 2026. Late enrollment is rarely granted and requires instructor approval. PTE numbers are NOT available; do not contact the instructor or the Life Sciences Core Office for a PTE number. The department will not facilitate section switches between students; students should enroll in a section only if they can attend all quarter. Seats are held for entering students who enroll through New Student Orientation sessions beginning July 2, 2026. New student restrictions will be lifted on September 15, 2026 at 8 a.m. There will be one MANDATORY midterm examination from 6 to 7:50 p.m. on Thursday, October 29, 2026.
The limit stands until 15 September, and lifts then. dibs still counts this class as one you can take, but not yet.
When it meets
Meets: R 11:00am-12:15pm
Lecture: TR 2:00pm-3:15pm
Mathematical Sciences 3915D
Grades
1 person has taught LIFESCI 15 in the grade record: PHELAN, JOHN PATRICK at 3.39 over 3,594 grades.
- A range
- 52%
- P/NP
- 5%
- D/F/W
- 1.6%
What students say
dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.
What the work looks like
- 2 exams, said by 3 reviewers
- 4 quizzes, said by 3 reviewers
- Problem sets mentioned, no number given, said by 3 reviewers
- 1 group work, said by 3 reviewers
Read from 28 reviews about 1 month ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.
Will it still be here
high risk chance of closing before your enrollment pass.
Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.
- 35321F
- 33622W
- 6522S
- 35022F
- 34023S
- 37423F
- 34824W
- 36624F
- 36725W
- 20625S
- 36125F
Peak 374 · most recent 25F at 361
Seats over time
Filled by 7 over about 2 months
26 times reopenedA dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. The line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not: 25 minutes ago.
Show the readings (60)
| Recorded | Enrolled | Capacity | Status | Waitlist | Hours read |
|---|---|---|---|---|---|
| 1 Oct 17:22 | 24 | 24 | closed | - | 8 of 21 |
| 30 Sep 21:42 | 24 | 24 | closed | - | 3 of 8 |
| 30 Sep 14:42 | 23 | 24 | open | - | 2 of 4 |
| 30 Sep 11:12 | 24 | 24 | closed | - | 3 of 8 |
| 30 Sep 04:12 | 23 | 24 | open | - | 2 of 6 |
| 29 Sep 23:42 | 24 | 24 | closed | - | 2 of 4 |
| 29 Sep 20:12 | 23 | 24 | open | - | 8 of 26 |
| 28 Sep 19:42 | 24 | 24 | closed | - | 22 of 75 |
| 25 Sep 17:42 | 21 | 21 | closed | - | 8 of 25 |
| 24 Sep 17:02 | 24 | 24 | closed | - | 2 of 5 |
| 24 Sep 13:32 | 23 | 24 | open | - | 25 of 82 |
| 21 Sep 04:42 | 24 | 24 | closed | - | 4 of 11 |
| 20 Sep 18:12 | 23 | 24 | open | - | 35 of 116 |
| 15 Sep 23:12 | 24 | 24 | closed | - | 3 of 6 |
| 15 Sep 18:32 | 23 | 24 | open | - | 27 of 89 |
| 12 Sep 02:32 | 24 | 24 | closed | - | 2 of 4 |
| 11 Sep 23:52 | 22 | 24 | open | - | 2 of 2 |
| 11 Sep 22:02 | 24 | 24 | closed | - | 14 of 34 |
| 10 Sep 13:40 | 22 | 24 | open | - | 7 of 14 |
| 10 Sep 00:40 | 22 | 22 | closed | - | 6 of 18 |
| 9 Sep 07:40 | 21 | 22 | open | - | 2 of 8 |
| 9 Sep 00:40 | 21 | 21 | closed | - | 2 of 7 |
| 8 Sep 18:40 | 21 | 22 | open | - | 1 of 89, 88 no hourly record |
| 5 Sep 02:40 | 21 | 21 | closed | - | no hourly record |
| 3 Sep 23:40 | 19 | 21 | open | - | no hourly record |
| 3 Sep 19:40 | 19 | 20 | open | - | no hourly record |
| 3 Sep 12:46 | 19 | 21 | open | - | no hourly record |
| 3 Sep 12:46 | 19 | 21 | open | - | no hourly record |
| 31 Aug 02:40 | 19 | 20 | open | - | no hourly record |
| 30 Aug 22:40 | 20 | 20 | closed | - | no hourly record |
| 30 Aug 21:40 | 19 | 20 | open | - | no hourly record |
| 26 Aug 01:40 | 20 | 20 | closed | - | no hourly record |
| 25 Aug 22:40 | 18 | 20 | open | - | no hourly record |
| 25 Aug 21:55 | 20 | 20 | closed | - | no hourly record |
| 25 Aug 20:55 | 18 | 20 | open | - | no hourly record |
| 25 Aug 20:40 | 20 | 20 | closed | - | no hourly record |
| 25 Aug 18:55 | 18 | 20 | open | - | no hourly record |
| 25 Aug 17:55 | 20 | 20 | closed | - | no hourly record |
| 24 Aug 19:55 | 18 | 20 | open | - | no hourly record |
| 24 Aug 17:55 | 18 | 18 | closed | - | no hourly record |
| 24 Aug 15:55 | 18 | 20 | open | - | no hourly record |
| 24 Aug 14:55 | 18 | 18 | closed | - | no hourly record |
| 24 Aug 13:55 | 18 | 20 | open | - | no hourly record |
| 24 Aug 11:55 | 18 | 18 | closed | - | no hourly record |
| 24 Aug 10:55 | 18 | 20 | open | - | no hourly record |
| 21 Aug 01:55 | 18 | 18 | closed | - | no hourly record |
| 20 Aug 22:55 | 17 | 18 | open | - | no hourly record |
| 20 Aug 21:55 | 18 | 18 | closed | - | no hourly record |
| 20 Aug 20:55 | 17 | 18 | open | - | no hourly record |
| 20 Aug 19:55 | 18 | 18 | closed | - | no hourly record |
| 20 Aug 18:55 | 17 | 18 | open | - | no hourly record |
| 20 Aug 17:55 | 18 | 18 | closed | - | no hourly record |
| 20 Aug 00:55 | 17 | 18 | open | - | no hourly record |
| 19 Aug 23:55 | 17 | 17 | closed | - | no hourly record |
| 19 Aug 19:55 | 17 | 18 | open | - | no hourly record |
| 19 Aug 18:55 | 17 | 17 | closed | - | no hourly record |
| 19 Aug 17:55 | 17 | 18 | open | - | no hourly record |
| 19 Aug 12:55 | 17 | 17 | closed | - | no hourly record |
| 19 Aug 11:55 | 17 | 18 | open | - | no hourly record |
| 17 Aug 16:42 | 17 | 17 | closed | - | - |
How readings and alerts work
A reading and an hourly record are different things, and most charts here hold more of the second missing than present. dibs has taken readings of a section since long before it began keeping an hour-by-hour log of when it looked, so the empty stretches are dibs saying it was not keeping that log yet, not that it looked and found nothing. That is the age of the record and not a fault.
Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.
The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.
Class chat
Nobody on dibs watches this class or has it on a plan yet. Nobody has posted yet.
Dis 1A shares one room with Lec 1 and every other discussion under it, because that is what a student means by "my class".
Reading a room needs no account. Posting does, and it is free.