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LIFESCI 15 · Lec 1

Life: Concepts and Issues

Fall 2026Phelan, J.P.5 units

Seats, time, final and grades

Seats

Open, 39 seats left.

345 of 384 enrolled, lecture and all discussions summed.

Meets

TR 2:00pm-3:15pm

Lecture only. You also attend a discussion, listed below.

Final

Mon 7 Dec, 8:00am to 11:00am

One exam for the whole class, Los Angeles time.

Read 14 hours ago.

Grades

3.39
predicted, this instructor · 3,594 grades

3,594 letter grades, Phelan, J.P..

Read 21 minutes ago. This is a recent reading, not a live seat count.

Enroll on the registrar (opens in a new tab) Sign in to watch for an opening

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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.

Discussions

You enroll in the discussion, not the lecture, so the seat figure above is the sum across all of them and can read open while every discussion you could actually join is full.

16 discussions, 7 open.

  • Dis 1A

    R 11:00am-12:15pm

    Boutelle, C.

    Closed.

  • Dis 1B

    R 12:30pm-1:45pm

    Boutelle, C.

    Closed.

  • Dis 1C

    T 3:30pm-4:45pm

    Meyer-Lorey, R.

    Closed.

  • Dis 1D

    T 3:30pm-4:45pm

    Weymer, C.E.

    Open, 1 seat left.

  • Dis 1E

    T 5:00pm-6:15pm

    Finnegan, N.

    Open, 3 seats left.

  • Dis 1F

    T 5:00pm-6:15pm

    Weymer, C.E.

    Open, 6 seats left.

  • Dis 1G

    W 8:00am-9:15am

    Boutelle, C.

    Open, 11 seats left.

  • Dis 1H

    W 9:30am-10:45am

    Boutelle, C.

    Closed.

  • Dis 1I

    W 11:00am-12:15pm

    Finnegan, N.

    Closed.

  • Dis 1J

    W 12:30pm-1:45pm

    Meyer-Lorey, R.

    Open, 1 seat left.

  • Dis 1K

    W 2:00pm-3:15pm

    Meyer-Lorey, R.

    Closed.

  • Dis 1L

    W 3:30pm-4:45pm

    Finnegan, N.

    Closed.

  • Dis 1M

    W 3:30pm-4:45pm

    Meyer-Lorey, R.

    Closed.

  • Dis 1N

    W 5:00pm-6:15pm

    Finnegan, N.

    Open, 2 seats left.

  • Dis 1O

    R 8:00am-9:15am

    Weymer, C.E.

    Open, 15 seats left.

  • Dis 1P

    R 9:30am-10:45am

    Weymer, C.E.

    Closed.

When it meets

Mon
Tue
Wed
Thu
Fri
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm

Meets: TR 2:00pm-3:15pm

Discussions: T 3:30pm-4:45pm · T 5:00pm-6:15pm · W 8:00am-9:15am · W 12:30pm-1:45pm · W 5:00pm-6:15pm · R 8:00am-9:15am

Haines Hall 39

Grades

3.39
predicted, this instructor · 3,594 grades
A range
52%
P/NP
5%
D/F/W
1.6%

Full grade history for LIFESCI 15

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.

Workload, light. 3.6 of 5 for Jay Phelan, where 5 is lightest. Read 30 days ago.

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.

LIFESCI 15 reviews for Jay Phelan Reviews for all professors of LIFESCI 15

Will it still be here

medium 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
Enrollment by term: 21F 353, 22W 336, 22S 65, 22F 350, 23S 340, 23F 374, 24W 348, 24F 366, 25W 367, 25S 206, 25F 361

Peak 374 · most recent 25F at 361

Seats over time

Filled by 100 over about 2 months

1 time reopened
345 of 384 · 39 left in its discussions
17 Aug 12:329 Sep 02:371 Oct 16:42
dibs read 168 of the 551 hours its hourly record covers, 30%, and did not look in 383. dibs had no hourly record before 8 Sep, which is the other 534 of 1085 plotted.345 of 384 enrolled at the newest reading, 21 minutes ago, with 39 left in its discussions. Seats from 17 Aug 12:32 to 1 Oct 16:42, 245 to 345. dibs read 168 of the 551 hours its hourly record here covers, 30%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 383 hours dibs was keeping a record and did not reach this section. Nothing before 8 September at 18:00, where this section's record starts, has a read either way, which is 534 hours of this window. Where the drawing is faint or broken, that never means the readings are doubtful. It means the stretch between them is unaccounted for.

A 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: 21 minutes ago.

Show the readings (108)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 16:42 345 384 open - 1 of 1
1 Oct 16:42 345 384 open - 2 of 4
1 Oct 13:52 343 384 open - 5 of 13
1 Oct 01:12 345 384 open - 2 of 5
30 Sep 21:42 347 384 open - 6 of 18
30 Sep 04:12 344 384 open - 2 of 6
29 Sep 23:42 349 384 open - 2 of 4
29 Sep 20:12 346 384 open - 8 of 26
28 Sep 19:42 349 384 open - 22 of 75
25 Sep 17:42 336 336 closed - 2 of 4
25 Sep 14:12 355 384 open - 2 of 5
25 Sep 10:42 353 384 open - 3 of 7
25 Sep 04:12 355 384 open - 4 of 12
24 Sep 17:02 354 384 open - 5 of 16
24 Sep 02:02 356 384 open - 3 of 8
23 Sep 19:22 357 384 open - 2 of 5
23 Sep 15:32 351 384 open - 2 of 4
23 Sep 12:02 353 384 open - 4 of 12
23 Sep 01:32 351 384 open - 2 of 4
22 Sep 22:02 347 384 open - 2 of 5
22 Sep 18:32 349 384 open - 3 of 8
22 Sep 11:32 347 384 open - 4 of 11
22 Sep 01:32 345 384 open - 3 of 8
21 Sep 18:42 347 384 open - 3 of 5
21 Sep 14:42 345 384 open - 8 of 21
20 Sep 18:12 347 384 open - 6 of 17
20 Sep 02:02 349 384 open - 2 of 5
19 Sep 22:32 350 384 open - 7 of 20
19 Sep 03:52 348 384 open - 8 of 24
18 Sep 04:42 349 384 open - 2 of 4
18 Sep 01:12 348 384 open - 2 of 5
17 Sep 21:42 349 384 open - 3 of 8
17 Sep 14:42 347 384 open - 2 of 4
17 Sep 11:12 346 384 open - 3 of 8
17 Sep 04:12 347 384 open - 4 of 12
16 Sep 17:42 344 384 open - 3 of 8
16 Sep 10:52 343 384 open - 2 of 4
16 Sep 07:22 342 384 open - 2 of 5
16 Sep 03:52 341 384 open - 2 of 5
15 Sep 23:12 342 384 open - 3 of 6
15 Sep 18:32 337 384 open - 2 of 4
15 Sep 15:02 335 384 open - 2 of 5
15 Sep 11:32 337 384 open - 25 of 82
12 Sep 02:32 322 384 open - 2 of 4
11 Sep 23:52 307 384 open - 2 of 2
11 Sep 22:02 323 384 open - 14 of 34
10 Sep 13:40 307 384 open - 7 of 14
10 Sep 00:40 307 363 open - 6 of 18
9 Sep 07:40 301 363 open - 2 of 8
9 Sep 00:40 301 341 open - 2 of 7
8 Sep 18:40 301 363 open - 1 of 17, 16 no hourly record
8 Sep 02:40 301 341 open - no hourly record
5 Sep 02:40 300 341 open - no hourly record
3 Sep 23:40 282 341 open - no hourly record
3 Sep 19:40 283 318 open - no hourly record
3 Sep 18:40 282 341 open - no hourly record
3 Sep 12:46 283 341 open - no hourly record
3 Sep 12:46 283 341 open - no hourly record
3 Sep 01:40 283 318 open - no hourly record
31 Aug 02:40 282 318 open - no hourly record
30 Aug 22:40 283 318 open - no hourly record
30 Aug 21:40 282 318 open - no hourly record
29 Aug 01:40 283 318 open - no hourly record
28 Aug 01:40 284 318 open - no hourly record
27 Aug 22:40 281 318 open - no hourly record
27 Aug 21:40 284 318 open - no hourly record
27 Aug 20:40 281 318 open - no hourly record
27 Aug 19:40 284 318 open - no hourly record
27 Aug 01:55 281 318 open - no hourly record
27 Aug 00:55 282 318 open - no hourly record
26 Aug 22:55 281 318 open - no hourly record
26 Aug 21:55 282 318 open - no hourly record
26 Aug 20:55 281 318 open - no hourly record
26 Aug 18:55 282 318 open - no hourly record
26 Aug 17:55 281 318 open - no hourly record
26 Aug 01:40 282 318 open - no hourly record
26 Aug 00:40 283 318 open - no hourly record
25 Aug 23:40 263 318 open - no hourly record
25 Aug 20:40 283 318 open - no hourly record
25 Aug 18:55 263 318 open - no hourly record
25 Aug 17:55 283 318 open - no hourly record
25 Aug 00:55 263 318 open - no hourly record
24 Aug 22:55 264 318 open - no hourly record
24 Aug 20:55 263 318 open - no hourly record
24 Aug 19:55 264 318 open - no hourly record
24 Aug 17:55 264 295 open - no hourly record
24 Aug 10:55 264 318 open - no hourly record
23 Aug 01:55 264 295 open - no hourly record
22 Aug 00:55 265 295 open - no hourly record
21 Aug 23:55 264 295 open - no hourly record
21 Aug 22:55 265 295 open - no hourly record
21 Aug 21:55 264 295 open - no hourly record
21 Aug 20:55 265 295 open - no hourly record
21 Aug 01:55 264 295 open - no hourly record
20 Aug 22:55 245 295 open - no hourly record
20 Aug 21:55 264 295 open - no hourly record
20 Aug 20:55 245 295 open - no hourly record
20 Aug 19:55 264 295 open - no hourly record
20 Aug 18:55 245 295 open - no hourly record
20 Aug 17:55 264 295 open - no hourly record
20 Aug 00:55 245 295 open - no hourly record
19 Aug 23:55 245 271 open - no hourly record
19 Aug 19:55 245 295 open - no hourly record
19 Aug 18:55 245 271 open - no hourly record
19 Aug 17:55 245 295 open - no hourly record
19 Aug 12:55 245 271 open - no hourly record
19 Aug 11:55 245 295 open - no hourly record
17 Aug 12:32 245 271 open - -
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.

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