Complex organisms with gills and lungs were major life forms that existed in the

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Answer 1

Answer: Complex organisms with gills and lungs were major life forms that existed in the Paleozoic era.

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a semipermeable membrane is placed between the following solutions. which solution will decrease in volume? mastering biology

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Answer:

whichever solution has a lower concentration of the solute in it will lose volume as in osmosis water is attracted to the side with a higher volume of the solute

Is Haystack rock typical of continental crust or oceanic crust

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the one of the oregon coast is whereits located

How many atoms of nitrogen are in a chemical formula Ni(NO3)2?O 3
O 2
O 1
O 6

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The answer is 2 because its the outside number and not in the parentheses

Answer:

just did test

Explanation:

4. An animal that relies on a digestive tract for digestion breaks down food bya. both intracellular and extracellular digestion.b. extracellular digestion onlyc. neither intracellular nor extracellular digestion.d. intracellular digestion only

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The answer is b. An animal that relies on the digestive tract for digestion breaks down food via extracellular digestion. The digestive tract uses mechanical and chemical processes to digest the food. Extracellular digestion is a type of digestion that happens in an opening as part of a digestive system where the nutrients produced from digestion is transferred to the blood or other body fluids. The digestive tract serve as the opening.

Myelinated nerve fibers that rapidly transmit acute pain information from the sensory fibers to the central nervous system are _______

Answers

Answer:

Delta fibers.

Explanation:

Myelinated fibers may be defied as the fibers that are covered by the myelin sheath. Three different classes of nerve fibers are group A nerve fibers, B fibers and C fibers.

Delta fibers are the type of group A fibers. These fibers are involved in the transmission of the acute pain information. The information is transferred from the sensory fibers to the central nervous system. These delta fibers can carry information faster and they are larger than the C fibers.

Thus, the correct answer is delta fibers.

All of a person's genetic material makes up the ____, whereas the _____ consists of only observable characteristics.

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Answer:

genotype, phenotype

Explanation:

The genotype is the individual's collection of genes, is a unique version of DNA sequence. Phenotype is the expression of these genes, they are the observable characteristics an individual presents and it can be influenced by many factors such as environment, diet, etc.

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Select the three statements that are true. To review the germ layers and the terminology associated with body cavities, see the Hints. A. The digestive tract of a coelomate functions as a coelom. B. A diploblast has no mesoderm. C. In a pseudocoelomate, the tissue lining the inner side of the body cavity arises from the same germ layer as the muscles. D. A pseudocoelom has the same functions as a true coelom. In a coelomate, the tissue lining the inner side of the body cavity arises from the same germ layer as the tissue lining the outer side of the body cavity. E. An acoelomate triploblast has no endoderm. In a coelomate, the tissue lining the inner side of the body cavity arises from the same germ layer as the lining of the digestive tract.