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11111nata11111 [884]
3 years ago
11

A crater in mexico's yucatan peninsula may be the result of an impact that brought about the extinction of numerous species at t

he end of the ________ period.
Biology
1 answer:
Ann [662]3 years ago
3 0

Answer:

Cretaceous

Explanation:

From what has been examined so far, there are evidence that at the end of the Cretaceous period a very large asteroid or comet stuck the Earth. The impact was where modern day Yucatan is located, and it released such an enormous energy that it managed to change the face of the Earth. The explosion itself managed to kill off pretty much everything nearby, but there was also a very hot wave that circled the whole planet. Enormous amounts of dust and ashes were released into the atmosphere that blocked the Sun, and the volcanoes all over the globe were triggered. This caused major climate and environmental changes, leading to a mass extinction, with the most noticeable victims being the dinosaurs.

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Explain why your model improves upon the student’s original model. How would your model help someone who was learning about phot
lora16 [44]

Answer:

Determine how many groups you will have.  

Prepare ping-pong balls.  

Collect egg cartons.  

Prepare the egg cartons.  

Prepare “energy tokens.”  

 Post signs in the classroom.  

 Prepare filled H20 and C02 “molecules.”

Explanation:

Photosynthesis occurs in two stages. In the first stage, light-dependent reactions or light reactions capture the energy of light and use it to make the energy-storage molecules ATP and NADPH. During the second stage, the light-independent reactions use these products to capture and reduce carbon dioxide.

8 0
2 years ago
Read 2 more answers
What statement correctly explains why moist-heat is more effective than dry-heat for sterilization purposes?
tino4ka555 [31]

Answer:

Dry heat will always be a lower temperature than moist hea

Advantages of Dry Heat sterilization

Reliable, nontoxic.

Low cost and is easy to install.

As the instrument remains dry after sterilization, there are no chances of corrosion.

Not harmful to the environment.

Disadvantages of the Dry Heat Sterilization

It requires more time for sterilization.

Exposure to the higher temperature may be harmful to the instrument.

Explanation:

3 0
3 years ago
Proteins are made out of ____________. What determines the primary structure of a protein? State two functions of proteins. What
Kobotan [32]

Answer: See explanation

Explanation:

It should be noted that protein consist of amino acids. There are hundred of amino acids that are contained in protein. Examples of protein include fish, meat, eggs, nuts etc.

The amino acid sequence that can be found in the protein determines the primary structure of protein. The functions of protein include building and repair of body tissues, it also helps in maintain a proper potential of hydrogen (PH) for the body. Lastly, protein is also essential for growth as they help in cell and tissue growth.

Enzymes are catalysts that are responsible for speeding the chemical reaction rate in the body cells. Enzymes help in digestion.

Hemoglobin, is a protein that contains iron that can be found in the blood of animals. The function of the haemoglobin is to help in transferring oxygen to the tissues from the lungs.

5 0
3 years ago
Which statement best describes an environmental consequence of unsealed landfills? Landfills can produce carbon dioxide that lea
kirill [66]

The correct statement describing environmental consequence of unsealed Landfills is : ( A ) Landfills can produce carbon dioxide that leak into the atmosphere

A landfill is composed of 4 essential components and some are ;

  • bottom linear
  • hydrogeologic component and
  • A cover ( seal )

Given that a landfill constitutes of about 40 to 60 percent of C0₂ the environmental consequence of not providing a proper seal for the landfill will be the leakage of C0₂ into the atmosphere. while

The release of Heavy metals as leach ate into the surrounding can be controlled with the provision of a system in the landfill, materials in landfill undergo decomposition for a long period of time.

Hence we can conclude that Landfills can produce carbon dioxide that leak into the atmosphere.

Learn more : brainly.com/question/12745559

5 0
2 years ago
Read 2 more answers
BRAINLIESTTT ASAP!!
kifflom [539]

New moon: we see darkness (aka nothing)

Waxing crescent moon: we see a sliver of light that indicates the crescent (during this time, the moon moves eastward away from the sun)

First quarter moon: when half the moon's face is illuminated.

Gibbous moon: when more than half the moon is illuminated, we call this a gibbous

Full moon: we see the whole round moon, lit up.

Waning gibbous moon: when the moon becomes thinner, but is still lit up for over half of its shape.

Third quarter moon: this is where the moon shows the other half of itself (that we didn't see in the 1st quarter) while the other half is dark.

Waning crescent moon: when the moon is a thin crescent, traveling down into the darkness of the full moon.

This process takes about a month (29.53 days).

6 0
3 years ago
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