Angelo Mark P Walag

14 Questions 48 Answers 0 Followers

Questions related from Angelo Mark P Walag

How to determine sex in sea stars/starfish?

I plan to compare sex differences in terms of bioenergetics and biochemical composition of Acanthaster planci. Is there any external morphological feature I can use to determine sex? If no, what...

19 September 2018 9,899 5 View

What are improvised science instructional materials you can suggest?

We are planning to conduct a training for elementary science teachers on making improvised instructional materials to improve the quality of science teaching. Most of the science teachers in our...

16 October 2017 215 11 View

How long to freeze dry marine samples?

We collected marine echinoderms (sea stars, sea urchins, sea cucumbers) along the coast. We reduced the sizes of these organisms to roughly 1-2 inches. We plan to subject the specimens to freeze...

09 October 2017 8,515 2 View

What are the different theories to support presence of marine natural products?

I am interested with different theories and concepts that I can use to support my study on the proximate biochemical composition of marine organisms and the production of marine natural products...

15 July 2017 8,805 2 View

How to preserve marine sea stars?

I plan to collect marine sea stars from a far sampling site at around 6 hours of travel and freeze drying would not be immediately possible for around 2-3 days. How do I travel the marine sea...

15 July 2017 1,432 2 View

What tool to use to determine profound understanding in Science?

I plan to conduct a diagnostic study to determine the profound understanding of elementary science teachers in the whole city. I am looking into a simple tool (one that would require short time to...

11 July 2017 2,051 9 View

What echinoderm species are these?

What echinoderm species are these? Please help identify the following species. I have pre-identified some which are Pic 1 - P. nodosus Pic 2 - L. laevigata Pic 3 - A. planci Pic 4 - T....

09 July 2017 4,134 5 View

What echinoderm species are these from the Philippines?

Please help identify these species

09 July 2017 3,059 5 View

What are common marine natural products in sea stars and brittle stars?

I am embarking on an exploratory research project on secondary metabolites of marine organisms particularly on sea stars and brittle stars. What natural products should I consider first? Im...

05 June 2017 4,787 3 View

How to effectively interpret cronbach coefficient of reliability?

I gave a pre test on competencies in biology. The index of reliability for the pre test is 0.77 which is somehow considered as moderately reliable. When the same test was given to the same group,...

31 May 2017 5,805 10 View

What spider species is this?

Have a prosperous new year to everyone! What spider species is this found in a commercial swimming resort in Jasaan, Misamis Oriental, Philippines. Please help in identification

02 January 2017 5,565 10 View

What are current teaching strategies to teach various topics in Chemistry?

Can you share some teaching methodologies/strategies to teach specific topics in general chemistry?

01 December 2016 706 6 View

What brittle star species is this?

Please help identify brittle star species shown below

28 October 2016 198 6 View

What echinoderm species are these?

Please help identify species level of the following specimens

23 October 2016 7,833 12 View