Spiracles Study guides, Class notes & Summaries

Mark Scheme (Results) Summer 2023 Pearson Edexcel GCE In Biology B (8BI0) Paper 02: Core Physiology and EcologyEdexcel and BTEC Qualifications Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We provide a wide range of qualifications including academic, vocational, occupational and specific programmes for employers. For further information visit our qualifications websites at or . Alternatively, you can get in touch with us using the details on ...

Each pesticide business shall present to each customer for whom he or she performs a pest control service involving the application of pesticides a written statement of services or contract setting forth the following information: - Answer- Business name and address of the pesticide business; 2. Name and address of the customer; (All addresses should include the street address or rural route) 3. The name of each pest to be controlled;4. Date and location of the application of the pesticide; 5. C...

Adaptions of early Tetrapods correct answers Addition of teeth Paired fins to limbs Gills replaced by lungs Larynx for vocalization Tongue Increased skeletal support Larger cerebral cortex Devonian correct answers Tetrapods emerge (Ichthyostega & Tiktaalik) Mesozoic correct answers Lissamphibians (Salamanders, Frogs, Toads, Caecilians explode) Tiktaalik correct answers Late Devonian 375 mya Transitional species for salamanders Lungs as well as gills 1st tetrapod with neck S...

Question Number Answer Additional Guidance Mark 1(a) Accept HO for OH (1) OH H OH H Question Number Answer Additional Guidance Mark 1(b) An answer that includes three of the following: • cellulose is made up of beta glucose (monomers) but starch is made up of alpha glucose (monomers) (1) • cellulose contains {unbranched / straight / linear} chains (of glucose) but starch contains branched chains (1) • cellulose contains 1,4 glycosidic bonds but starch contains 1,4 and 1,6 ...

As the weather warms, insects____ - ANSWER increase reproduction . Fumigants such as Sulfuryl Flouride are.... - ANSWER inhaled by insects through spiracles a gas at room temperature non-specific and at high concentrations will kill most living things known for NO residual after the gas is cleared from a structure

AQA AS BIOLOGY 7401/1 Paper 1 Question Paper & Mark scheme June 2023 VERIFIED 100% What are the advantages of multi-cellular organisms? - --able to move -able to hunt(likely to he in top if food chain) -able to adapt to environment -specialised body reigons -able to find a mate What are the disadvantages of multi-cellular organisms? - -As they get bigger diffusion is less efficient and specialised exchange surfaces are needed Single felled organisms have a __________ surface area to volum...

Bio 106 WSU Carloye Exam 4 Questions with Verified Solutions What is the difference between blood and hemolymph? Blood: In a Closed circulatory system and is confined to vessels. Hemolymph (AKA interstitial fluid): In an Open circulatory system and bathes the body cells. What are the major types of blood cells? red and white cells What adaptations allow an animal to use diffusion across its skin as the only mechanism for gas exchange? The animal must be thin and have a large sur...

What is a surface area to volume ratio? How is it calculated? - AnsA way of describing how close the internal section of an object is to its surface Surface area of object / volume of object How do we calculate the surface area to volume ratio of a 10cm cube? - AnsSide length: 10cm Volume: 10 x 10 x 10 = 1000cm^3 Surface area = (10 x 10) x 6 = 600^2 SA: V = 0.6 How do you calculate the surface area and volume of a sphere? - AnsSurface area - 4 x pi x radius^2 Volume - 4/3 x pi x radiu...

What is the difference between blood and hemolymph? - Blood: In a Closed circulatory system and is confined to vessels. Hemolymph (AKA interstitial fluid): In an Open circulatory system and bathes the body cells. What are the major types of blood cells? - red and white cells What adaptations allow an animal to use diffusion across its skin as the only mechanism for gas exchange? - The animal must be thin and have a large surface area. Animals that only diffuse across the skin have a dense ...

AQA AS Biology Exam Frequent Questions and Answers What are the advantages of multi-cellular organisms? - ANSWER -able to move -able to hunt(likely to he in top if food chain) -able to adapt to environment -specialised body reigons -able to find a mate What are the disadvantages of multi-cellular organisms? - ANSWER As they get bigger diffusion is less efficient and specialised exchange surfaces are needed Single felled organisms have a __________ surface area to volume ratio - ...