At the end of which period on the geological time scale did the dinosaurs become extinct? A. Jurassic B. Quaternary C. Cretaceous D. Tertiary

Answers

Answer 1
Answer: Hey, Rockstar2405!The dinosaurs become extinct in the Cretaceous Period. I hope this helps;)
Answer 2
Answer: (C. The dinosaurs became extinct after the Cretaceous time period, after living on Earth for about 165 Million Years

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What is the relationship between observation and explanation

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Observations are things you use your "five senses" to determine - how something smells, looks, tastes, sounds, or feels.Inference is something that you assume based on previous knowledge.

?Do you guys think there is another earth in a different galaxy?

Answers

The Hubble telescope has not spotted any life forms on other planets in different galaxies...
Studies haven't shown that their is another 'earth' that people can survive on. 

Why do oceanic upwelling promote growth of micro plankton

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Because in the process of oceanic upwelling , the currents bring out the nutrient-rich water from the deep water to the surface. This nutrient-rich water will be the perfect breeding spot for micro plankton since now they have a lot moree source of food

A group of similar cells that perform the same function is called a (an)a. organ.
b. organ system.
c. tissue. d. tendon.​

Answers

Final answer:

A group of similar cells performing the same function is called a tissue in biology. Tissues include muscle tissue in animals and xylem tissue in plants.

Explanation:

In Biology, a group of similar cells that work together to perform a specific function is known as a tissue. Therefore, the answer to your question is c. tissue. Examples of tissues include muscle tissue, which allows for movement in animals, and xylem tissue in plants, which transports water from roots to other parts of the plant.

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Final answer:

A group of similar cells that perform the same function is called a tissue. Tissues combine to form organs, and several organs make up an organ system.

Explanation:

In biology, a group of similar cells performing the same function is called a tissue. Tissues may vary in their structure and composition, but they unify to fulfill a specific role. For example, muscle tissue, connective tissue, and nervous tissue - each is formed of similar cells and contributes to the organism's overall function. Several tissues combine to form an organ, like your heart or brain. Several organs working together comprise an organ system, such as the circulatory system or nervous system.

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Describe how turning off the electric current in an industrial electromagnet affects magnetic fields

Answers

Electromagnets are used in a number of everyday devices.

One useful characteristic of an electromagnet is the fact that you can vary its magnetic force by changing the amount and direction of the current going through the coils or windings around it. Loudspeakers and tape recorders are devices that apply this effect.Some electromagnets can be very strong and its power can be readily turned off and on. Junk yard electromagnets, common doorbells and electromagnetic locks are examples.Electromagnets can also be used to create continual motion when opposed by other electromagnets or permanent magnets. Examples include electric motors and maglev trains.

Which organism has the following characteristics: heterotrophic, eukaryotic, unicellular or multicellular, cell wall made of chitin?

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Kingdom Plantae: multicellular, eukaryotic, autotrophic, and has a cell wall comprised of cellulose and Kingdom Fungi: multicellular, eukaryotic, heterotrophic, and has a cell wall comprised of chitin.

What is multicellular and unicellular ?

If the body is made up of single cell it is called as unicellular and if the body is made up of multiple cells it is called as multicellular condition.

Filamentous fungi Unicellular, cell walls of chitin, absorb nutrients as these are all the characters of fungi in which they are feeding on the surface areas and they usually absorb nutrients. Cell walls are made up of chitin in which there is N-1,4 glycosidic linkage and are heterotrophic mostly.

Algae are the members of the kingdom protists and they are photosynthetic protists and they are producing hyphae are present in filamentous hypahe structures.

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Answer:

Fungi

Explanation: