Energy cannot be created or destroyed but can be transformed 1^st law of thermod
ID: 90136 • Letter: E
Question
Energy cannot be created or destroyed but can be transformed 1^st law of thermodynamics 2^nd law of thermodynamics law of conservation mass Entropy % of of energy/bio mass is passes from one trophic level to the next trophie level 1 10 30 50 Heart is 2 chambered in fishes reptiles mammals birds and mammals In male mammals both sperms and urine pass through Free radicals released from CFC's damage ozone layer magnetic field of earth lonospere all of these cephalothorax and abdomen, no antennae, 4 pairs of legs bee spider crab Centipede Bilateral larva, radial adult flat worms cnidarians Sponges annelids A net like Nervous system is present in cnidaria comb jelly sea star tunicate Early vertebra fossil trilobit tiktaalik halkuouella archaeopterye Amniotic egg was first developed by fishes reptiles mammals birds sewage and fertilizer runoffs result in rapid growth of cyanobacteria and algae in lakes symbiosis eutrophication stratification biomagnification Egg laying mammals are monotremes eutherians marsuplats none Fertilization takes place in ovary oviduct uterus vagina The part of brain, regulates balance medulla cerebrum cylimbic system cerebellum Functional part of brain associated with awake and sleep cycles. reticular formation cerebrum limbic system hypothalamus The most abundant fishes are cartilaginous lobelins ray fins Agatha The sum of a species use of biotic and abiotic resources is ecological niche resource partitioning competitive exclusion character displacement stores waste material inside chick egg amnion allantois chorian yolk sac Beavers act as dominant species keystone species invasive species ecosystem engineers mechanical defense against predation is seen in skunk dart frog porcupine all %of global water exists in oceans 1 2 5 97 A relationship where two or more species live in direct and intimate contact with one another is Predation symbiosis competition association Animals feeding on nonliving organic matter like feces, fallen leaves herbivore carnivore omnivore detrivore Germ layer forms epidermis, brain and retina mesoderm endoderm ectoderm none of these Most critical nutrient for producers is Phosphorus Potassium oxygen NitrogenExplanation / Answer
Answer:
1). A. 1st law of thermodynamics
Explanation:
The first law is also known as law of conservation of energy, which states that energy cannot be created or destroyed in an isolated system. The second law of thermodynamics states that the entropy of any isolated system always increases.
2). B. 10%
Explanation:
Only a fraction of the energy available at one trophic level is transferred to the next trophic level; the fractions can vary between 1-15%, with an average value of 10%. Typically the numbers and biomass of organisms decreases as one ascends the food chain.
3). A. Fishes
Explanation:
Fishes- 2 chambers (atrium and ventricle)
Amphibians – 3 chambers (2 atria and 1 ventricle)
Reptiles - 3 chambers (2 atria and 1 partically divided ventricle)
Birds & Mammalas – 4 chambered (2 atria and 2 ventricles)
4). C Urethra
Explanation:
In male mammals, the urethra serves a dual purpose transporting sperm to the pennis and urine from the urinary bladder.
5). A. Ozone layer
Explanation:
CFC’s (Chlorofluorocarbons) are used to be used as an aerosol propellant (help shoot the product out of the canister), fridge coolant and for foaming plastics, but it was found that they are very damaging to the environment, mainly the ozone layer.
6). B.Spider
Explanation:
Four pairs of legs, no antennae, no wings, uniramous appendages found in spiders,Ticks, Mites, etc.
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