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irinina [24]
3 years ago
10

Variation in snail color is an example of

Biology
2 answers:
Shalnov [3]3 years ago
8 0
Genetics, acquired variations come from genetic input.
Semenov [28]3 years ago
4 0
Dependent selection.
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What mineral is not included in children's multivitamin/mineral supplements because it is a major cause of unintentional poisoni
MariettaO [177]
The correct answer is iron, because it is often not included in children's multivitamin/mineral supplements. Iron is an important element for our health. It is especially important for the proper functioning of our red blood cells and it is found in many foods. Although iron is essential, too much can lead to iron toxicity. Iron poisoning was the leading cause of death from the medicine overdose in children younger than 6 years until the ends of the 1990s. But the trend has since changed due to better warning labels, education of prescribers, changes in iron preparations, and consumer awareness.
8 0
3 years ago
If two objects have the exact same volume and they both sink, but one has more mass than the other, will they displace the same
drek231 [11]

Answer:

No.

Explanation:

No, they will not displace the same volume of water because both objects has same volume. The volume of water displaces if the volume of an object is increases while more mass has no effect on the volume of water. So if we put the two objects in water having same volume so it will not displace the volume of water if mass is increased.

3 0
3 years ago
This geographic feature gave rise to early civilization.
rewona [7]
All of the choices in some ways gave rise to the early civilizations. Mountains helped India to be protected from China, the ocean helped for food, the Sahara desert protected lower Africa from invasion for many centuries. Rivers also helped since they were a major trade routes and the most fertile soil. I think that the Rivers were the most important geographic feature. So the correct answer is C. 
4 0
3 years ago
Read 2 more answers
mosquitos have 6 chromosomes, dogs have 78, and a adder's tongue fern has 1262 chromosomes. Given this information, what can be
kherson [118]

Answer:

No information can be inferred

Explanation:

Chromosome number provides no reference for establishing any relationship between organisms. The number of chromosome cannot depict whether a living species belong to plant kingdom or animal kingdom. It cannot even depict the evolutionary history of any species. Thus, the organism with lesser chromosome has not necessarily evolved from the species having larger number of chromosome or vice versa.  

Chromosome number can only depict the quantity of genetic material with in an organism and hence no relationship can be established living species only on the basis of chromosome number.  

7 0
3 years ago
• nitrogen-fixing • producer • biosphere • consumer • biotic factor • heat • condensation • parasitism • commensalism • neritic
Katarina [22]
  • <u>Nitrogen-fixing bacteria</u> carry out the conversion of gaseous nitrogen to a biologically useful form of nitrogen
  • An energy pyramid illustrates that energy in the form of <u>heat</u> is lost to the surroundings as it is passed from one organism to the next
  • The energy role of a grizzly bear is that of a <u>consumer</u> because it cannot make its own food
  • <u>Decomposers</u> cycle nutrients from dead organisms back to the soil, where it becomes available for plants
  • The <u>Savanna</u> biome is characterized by its lack of trees, warm temperatures, and moderate rainfall

Explanation:

  • The nitrogen-fixing bacteria like Azotobacter which lives in symbiotic relationship in the rhizomes of leguminous plants. They convert inorganic atmospheric nitrogen gas through the action of its enzymes like nitrogenase to organic nitrogen in the form of ammonia, which is readily assimilated by the plants.  
  • In an ecosystem, at each tropic level of an energy pyramid, only 10% of energy is utilized and transferred to the next higher tropic level whereas the majority of energy is dissipated as heat during various metabolic processes.  
  • Decomposers also called saprophytes like earthworms, bacteria, fungi survives on dead and decayed remains of plants and animals and also on fertilizers, pesticides etc in the soil. They recycle the nutrients by breaking down the complex biomolecules into simpler forms and release back into the soil.  
  • Grizzly bears being omnivores eat both plants and animals according to their availability. Hence they are both primary and secondary consumers.
  • Savanna is a grassland biome with a typical tropical wet and dry climate and receives moderate rainfall. Hence it cannot support trees but only have grasses.
6 0
3 years ago
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