WordPress database error: [Duplicate entry '1088611' for key 'PRIMARY']
INSERT INTO wp1f_actionscheduler_actions ( `hook`, `status`, `scheduled_date_gmt`, `scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` )
SELECT 'wp_mail_smtp_summary_report_email', 'pending', '2026-04-20 11:00:00', '2026-04-20 14:00:00', 'O:32:\"ActionScheduler_IntervalSchedule\":5:{s:22:\"\0*\0scheduled_timestamp\";i:1776682800;s:18:\"\0*\0first_timestamp\";i:1776682800;s:13:\"\0*\0recurrence\";i:604800;s:49:\"\0ActionScheduler_IntervalSchedule\0start_timestamp\";i:1776682800;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\";i:604800;}', 13, 10, '[null]' FROM DUAL
WHERE (
SELECT action_id FROM wp1f_actionscheduler_actions
WHERE status IN ( 'pending', 'in-progress' )
AND hook = 'wp_mail_smtp_summary_report_email'
AND `group_id` = 13
LIMIT 1 ) IS NULL
WordPress database error: [Duplicate entry '1088611' for key 'PRIMARY']
INSERT INTO wp1f_actionscheduler_actions ( `hook`, `status`, `scheduled_date_gmt`, `scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` )
SELECT 'wp_mail_smtp_admin_notifications_update', 'pending', '2026-04-17 11:52:12', '2026-04-17 14:52:12', 'O:32:\"ActionScheduler_IntervalSchedule\":5:{s:22:\"\0*\0scheduled_timestamp\";i:1776426732;s:18:\"\0*\0first_timestamp\";i:1776426732;s:13:\"\0*\0recurrence\";i:86400;s:49:\"\0ActionScheduler_IntervalSchedule\0start_timestamp\";i:1776426732;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\";i:86400;}', 13, 10, '[null]' FROM DUAL
WHERE (
SELECT action_id FROM wp1f_actionscheduler_actions
WHERE status IN ( 'pending', 'in-progress' )
AND hook = 'wp_mail_smtp_admin_notifications_update'
AND `group_id` = 13
LIMIT 1 ) IS NULL
WordPress database error: [Duplicate entry '1088611' for key 'PRIMARY']
INSERT INTO wp1f_actionscheduler_actions ( `hook`, `status`, `scheduled_date_gmt`, `scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` )
SELECT 'aioseo_cache_prune', 'pending', '2026-04-17 11:51:12', '2026-04-17 14:51:12', 'O:32:\"ActionScheduler_IntervalSchedule\":5:{s:22:\"\0*\0scheduled_timestamp\";i:1776426672;s:18:\"\0*\0first_timestamp\";i:1776426672;s:13:\"\0*\0recurrence\";i:86400;s:49:\"\0ActionScheduler_IntervalSchedule\0start_timestamp\";i:1776426672;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\";i:86400;}', 9, 10, '[]' FROM DUAL
WHERE ( SELECT NULL FROM DUAL ) IS NULL
WordPress database error: [Duplicate entry '1088611' for key 'PRIMARY']
INSERT INTO wp1f_actionscheduler_actions ( `hook`, `status`, `scheduled_date_gmt`, `scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` )
SELECT 'aioseo_cache_prune', 'pending', '2026-04-17 11:51:12', '2026-04-17 14:51:12', 'O:32:\"ActionScheduler_IntervalSchedule\":5:{s:22:\"\0*\0scheduled_timestamp\";i:1776426672;s:18:\"\0*\0first_timestamp\";i:1776426672;s:13:\"\0*\0recurrence\";i:86400;s:49:\"\0ActionScheduler_IntervalSchedule\0start_timestamp\";i:1776426672;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\";i:86400;}', 9, 10, '[]' FROM DUAL
WHERE ( SELECT NULL FROM DUAL ) IS NULL
WordPress database error: [Duplicate entry '1088611' for key 'PRIMARY']
INSERT INTO wp1f_actionscheduler_actions ( `hook`, `status`, `scheduled_date_gmt`, `scheduled_date_local`, `schedule`, `group_id`, `priority`, `args` )
SELECT 'woocommerce_ac_send_email_action', 'pending', '2026-04-17 11:52:12', '2026-04-17 14:52:12', 'O:32:\"ActionScheduler_IntervalSchedule\":5:{s:22:\"\0*\0scheduled_timestamp\";i:1776426732;s:18:\"\0*\0first_timestamp\";i:1776426732;s:13:\"\0*\0recurrence\";i:900;s:49:\"\0ActionScheduler_IntervalSchedule\0start_timestamp\";i:1776426732;s:53:\"\0ActionScheduler_IntervalSchedule\0interval_in_seconds\";i:900;}', 10, 10, '[]' FROM DUAL
WHERE ( SELECT NULL FROM DUAL ) IS NULL
Cambridge IGCSE Biology Practical Skills Workbook (Hodder) - Pick A Book Limited
Roll over image to zoom in
Click to open expanded view
by Salma Siddiqui
Improve scientific enquiry and practical skills with suggested key experiments and simple, structured guidance.
The Practical Skills Workbook provides additional support for the accompanying Cambridge IGCSE (TM) Biology Textbook.
Become accomplished scientists: the workbook provides a series of investigations with step-by-step guidance which leads you through the method and the use of apparatus, complete with safety notes. Improve the quality of written work: guidance, prompts and write in frames provided throughout to help you record your observations, interpret data and evaluate the experiment. Develop understanding and build confidence: plenty of exam-style questions are provided for preparation for practical exams or alternatives, whilst ‘Going Further’ questions encourage you to stretch yourself.
ISBN: 9781398310469
Cambridge IGCSE Biology Practical Skills Workbook (Hodder)
WhatsApp us for any enquiry...
Reviews
There are no reviews yet.