biology education project materials

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Classroom Resources

Biology Classroom Resources

This collection of lessons and web resources is aimed at classroom teachers, their students, and students' families.

Biology Research Overview Resource: All Audiences https://www.nsf.gov/news/overviews/biology/index.jsp A bat, a mushroom, a long blade of prairie grass. They're easy to identify as "life." what about a cold virus? Mold growing on a slice of bread? Or seeds encased in hard protective "shells" that can lie dormant for centuries? What, in essence, is this thing we call life? This Web page on the National Science Foundations's Web site gives us answers to many biological questions. Beautiful images can ignite the interest of all ages.

Naked & Amazing: Mole rats in the city

How research on bacterial immune systems led to CRISPR

Profiles of Scientists and Engineers: Biochemist

Tomato: Decoded -- Science Behind the News

DNA -- Chalk Talk

Material mimics real bone to repair injuries faster--Biotech's Future

See more videos related to Biology in the NSF Multimedia Gallery

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First page of “BIOLOGY PROJECT TOPICS AND MATERIALS”

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BIOLOGY PROJECT TOPICS AND MATERIALS

Related papers

By the end of the course, the learner should be able to: 1. communicate biological information in a precise, clear and logical manner 2. develop an understanding of interrelationships between plants and animals and between humans and their environment 3. apply the knowledge gained to improve and maintain the health of the individual, family and the community 4. relate and apply relevant biological knowledge and understanding to social and economic situations in rural and urban settings 5. observe and identify features of familiar and unfamiliar organisms, record the observations and make deductions about the functions of parts of organisms 6. develop positive attitudes and interest towards biology and the relevant practical skills 7. demonstrate resourcefulness, relevant technical skills and scientific thinking necessary for economic development 8. design and carry out experiments and projects that will enable them understand biological concepts 9. create awareness of the value of cooperation in solving problems 10. acquire a firm foundation of relevant knowledge, skills and attitudes for further education and for training in related scientific field.

Journal of Biological Education, 1992

@Ysrunka, 2014

Mosquitoes constitute a serious Public Health menace, resulting in millions of death worldwide each year. Emergence of insecticide resistant strains of the mosquitoes poses a serious threat and hence calls for alternative control measures. This study assessed the larvicidal efficacy of the methanolic and aqueous extracts of different parts of Picralima nitida against the 4th instar larvae of the malaria vector Anopheles gambiae . Larvicidal activities of the leaf, seed and pulp of the plant were therefore studied on laboratory reared larvae of A. gambiae at concentration ranges of 0.5 mg/ml to 5.0 mg/ml. The LC 50 and LC 95 values were obtained from probit analysis using SPSS version 16.0, at 95% confidence limit (CL). The Median Relative Potency of the extracts was also obtained using probit analysis at (P ≤0.05). Results of the study indicated that the LC 50 and LC 95 values of the aqueous leaf extracts were 3.14 mg/ml and 42.15 mg/ml at 24 h, 0.35 mg/ml and 4.73 mg/ml at 48 h and 0.16 mg/ml and 2.20 mg/ml at 72 h. A lower larvicidal activity was however observed with the methanolic leaf extract: LC 50 value of 48.38 mg/ml, 15.82 mg/ml and 0.33 mg/ml at 24 h, 48 h and 72 h respectively. Methanolic seed extract on the other hand, exhibited a higher degree of potency compared with the aqueous seed extract with a low LC 50 value of 0.87 mg/ml, 0.21 mg/ml and 0.15 mg/ml at 24, 48 and 72 h respectively; and an LC 95 values of 0.74 mg/ml, 0.18 mg/ml and 0.12 mg/ml at same time interval. A higher efficacy of activity was exhibited by the aqueous pulp extract than the methanolic pulp extract; with lowest LC 50 of 2.79 mg/ml at 72 h, and LC 95 value of 10.40 mg/ml. The relative potency estimate of the aqueous extract at 24 h gave the following result: aqueous leaf extract was 5.48 times more potent than the aqueous seed; the aqueous pulp 2.20 times greater than the aqueous seed whereas the aqueous leaf was 2.50 times more potent than the aqueous pulp. Similar trend was also observed at 48 and 72 h. Comparatively, at 24 h the methanolic seed extract was 269.76 times more potent than the methanolic leaf extracts; the methanolic pulp extract 2.40 times more potent than the methanolic leaf while the methanolic seed gave a potency of 112.49 times more than the methanolic pulp. However at 48 and 72 h, there was a reversal in trend with the methanolic leaf extract showing a relative potency of 2.73 and 11.51 times that of the methanolic pulp. The LT 50 (Median Lethal Time) of the extracts, evaluated at concentration of 1.0mg/ml with P = 0.05, was the following LT 50 ; 28h, 3.6 h and 57 h for aqueous leaf extract, methanolic seed extract and methanolic leaf extract respectively. Similarly, comparative evaluation of the overall efficacy of the various extracts showed that the methanolic seed extract exhibited the highest degree of activity (P<0.05), followed by the aqueous leaf extract and methanolic leaf extract. Conclusively, aqueous seed, methanolic pulp and aqueous pulp extract showed a relatively lower activity and an LT 50 value of 300 hrs and above at a concentration of 1.0 mg/ml. The results of this research therefore underscores the efficacy of the plant and further suggest the use of methanolic seed, aqueous leaf and methanolic leaf extracts of P. nitida as an eco-friendly alternative in malaria vector larviciding.

With the rise in the followers of the low carb diets, many people are turning to them to reap their health benefits. This paper was conducted to find out the effects of following a healthy high fat diet with the focus on the ketogenic diet. The ketogenic diet is a high fat (~70% of calories), low carb (~5% of calories), and moderate protein diet (~25% of calories). Expectations were that evidence will be in favor of following the ketogenic diet. To reach a conclusion, an extensive review of literature was conducted and data was analysed. The expectations were met with the findings proving that a proper high fat diet can drastically improve a subject's overall health.

Traditional plant used as medicine by the subanen (subanun) tribes In Limpapa, Zamboanga City at Mindanao (c) Ms. Ruzenda Cconception Bellen

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TNU Journal of Science and Technology, 2021

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for the learning of mathematics, 1998

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