Pollination by insects - Study guides, Class notes & Summaries

Eukaryotic cells evolved when an ancestral host cell, probably a ____________ formed a mutualistic, endosymbiotic relationship with ______________ - Answer-Archaean; an alphaprotobacteria Snowball Earth Hypothesis suggests the hardened, spiny exoskeleton evolved as a result of: - AnswerRelease of calcium after global glaciations You find a colony of single celled organisms that are living (thriving and reproducing) in an extreme environment, such as an alkaline or reducing environment. Which...

What does insect hemolymph transfer in the body? Nutrients, wastes, hormones, immune cells and peptides, BUT NEVER O2!! What kind of circulatory system do insects have? open circulatory system: hemolymph is in direct contact with tissues Brainpower Read More What is the dorsal vessel? Main circulatory organ of insects. It spans the entire length of an insect's body on the dorsal side. Anterior: aorta. Posterior: heart What are Alary muscles? muscles that hold the heart in...

Illinois Field Crop exam guide Questions and Correct Answers number of pests that should be controlled to prevent economic damage form occurring - CORRECT ANSWER-economic threshold- action threshold list several economic thresholds for some insect pests - CORRECT ANSWER-number of insects per plant % defoliation insects per feet of row Cornroot worms - CORRECT ANSWER-larvae tunnel in the roots and cause lodging adults eat silks signs of corn rootworms - CORRECT ANSWER-silks clipped 1/...

Genetics Chapter 11 Exam Questions With 100% Correct Answers Mendels Factors - answer•****Law of segregation-- only pass on half of your chromosomes passed on-- supported by meiosis -- paired genes will seperate ***Independent assortment--shoe analogy in meiosis 1 -- leads to variation in cells even after just one meiotic event genetic info inside 4 germ cells is never same- X and Y- will have chrom 1-22 but 23 will be diff-- non disjunction may mess this up Austrian monk turned botanis...

Entomology Test bank Questions and Answers 100% Pass Insects make good -Answer-detectives Which has the greater species diversity and impact on plant pollination? -Answer-moths "It may be doubted that there are many other animals which have played so important a part in the history of the world as these lowly organized creatures." Who said this, and what is the animal? -Answer-Charles Darwin, earthworm Conservation-oriented biological control seeks to ________ large populations of nativ...

fruit development ~ what happens when auxin is applied to the stigma of a unpollinated flower ? Provide food to animals eating the fruit even if pollination isn't successful à Maintaining dispersers alive for seeds that do develop ~ Advantage of having some parthenocarpic fruits for the plant? when there are more than 2 sets of chromosomes ~ what is polyploid Autopolyploidy ~ polyploid product of intraspecific crossing (2 parent cells from the same species) gibberellin ~ pl...

1# problem for predators - Starvation Active searching - (search and capture) Walking around until they pick up a trail of prey. Wolfs, wolf spiders, Tiger beetles. Adaptations for storing food - Enlarged salivary glands that make food sticky can stick to places. Nest early, Memory (a large hippocampus provides excellent spatial memory). Chickadee's hippocampus grows larger before winter. Adaptions of Brown Headed Cowbirds - Fast egg laying, 20-40 seconds compare to hour to not get caugh...

Genetics Chapter 11 Exam Questions With 100% Correct Answers Mendels Factors - answer•****Law of segregation-- only pass on half of your chromosomes passed on-- supported by meiosis -- paired genes will seperate ***Independent assortment--shoe analogy in meiosis 1 -- leads to variation in cells even after just one meiotic event genetic info inside 4 germ cells is never same- X and Y- will have chrom 1-22 but 23 will be diff-- non disjunction may mess this up Austrian monk turned botanis...

25.Chlorophyll containing autorophic thallophytes is called as (A) Algae (B) Lichens (C) Fungi (D) Bryophytes correct answers (A) (SSC (10+2) Level Data Entry Operator & LDC 2013) Exp: Autotrophs are those plants who make own food as carbohydrate in the presence of sunlight. Autotrophic thallophytes are algae which have chlorophyll contain for photosynthesis. 48. 'Table sugar' is which type of sugar? (A) Frutose (B) Galactose (C) Glucose (D) Sucrose correct answers (D) (SSC (10+2) Level Dat...

Entomology Test bank Questions and Answers 100% Pass Insects make good -Answer-detectives Which has the greater species diversity and impact on plant pollination? -Answer-moths "It may be doubted that there are many other animals which have played so important a part in the history of the world as these lowly organized creatures." Who said this, and what is the animal? -Answer-Charles Darwin, earthworm Conservation-oriented biological control seeks to ________ large populations of nativ...