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catalyst

Explanation:

catalyst promote chemical reaction without being used up in the reaction

Answer:

It's A

Explanation:

Answer:

1- Option A) describes an index fossil. Trilobite existed for a short time, but was abundant and lived in many locations.

2- Option B) Continents were once joined and have since drifted apart.

Explanation:

1) Fossils are animal and vegetable rests found in different strata of sedimentary rocks. Sedimentary layers deposit chronologically, so they are used to reflect history. They keep in each layer some of the forms of life that inhabited that area in the past. These fossils turn to be very useful while dating ages. The term Index fossils refer to those fossils that only existed in a given era or geological period during evolution.  

Index fossils must:    

• Be easily recognizable and distinguishable from all the other fossils

• Have lived in a relatively short geological period

• Present a wide geographic distribution

• Have lived in different sedimentary basins

• Appear in different types of rocks

• Be abundant

A) Trilobite existed for a short time, but was abundant and lived in many locations. The species accomplish the requirements. It is easily recognizable, had a wide geographic distribution, was abundant, and lived for a short time.  

2) The tectonic plates theory states that there is a continual movement of the crust. It explains the movement of the different plates and their directions and interactions. The continental drift theory explains how these movements have been taking place since millions of years ago. When continents were together in a unique continent, many species used to inhabit it. When plates started to separate, they took some of these species that got apart by the ocean. Some species were already dead and fossilized, while some other organisms died during continental drift and got fossilized after the divergence. The existence of the same fossils, placed in the same layers and of the same age, suggests that they used to inhabit the same area and died during the same time, meaning that continents were together when they got fossilized.

Answer:

optic nerve

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Answer:

50%

Explanation:

Answer:

A

Explanation:

firstly, conservation because by planting trees, the land dat was once proned to erosion is covered thereby conserving de land and reforestation because, u hv replaced trees dat were once cut there

The DVD experiment is not found here but the idea of spontaneous generation is wrong and therefore does not cause bacterial growth (Option C).

Spontaneous generation is an erroneous idea form the past indicating that organisms can emerge without previous life.

This idea was refuted by the experiment of L. Pasteur who showed spontaneous generation does not occur.

In conclusion, the DVD experiment is not found here but the idea of spontaneous generation is wrong and therefore does not cause bacterial growth.

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Answer:

jioheiuchwdcnddwjnichehigfiyheidiewiuffffffffwcgbxxxxxxxxxxxxdwkjleud gdiulifhuew fhaufbigo4iy3tfq77777777777777777777777kifiejfhruhyigvi3rhifhi3heuhf3jehfdui34yhrf4iuhfui4hfiu4hrf4iu

Explanation:

theres the answer.

Answer:

HHHt

its not one of the options but thats the correct answer

here, i placed a link (it had all the answers)

https://www.livingston.org/cms/lib9/NJ01000562/Centricity/Domain/600/Monster%20Genetics%20ANSWER%20KEY.pdf

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Answer:

Declines of lynx in the lower 48 states were due to trapping and timber harvests that removed, changed and fragmented habitat. Today, timber harvest, recreation and their related activities are the threats to lynx habitat.

Explanation:

Your welcome! :)

Answer:

Agrarian

Explanation:

Answer:

A.the foundation of most food chains

Explanation:

It is the only organism which is a source in the ecosystem.

Answer:

hmm I'd say something like "Solar and Wind energy systems are renewable sources and ultimately are healthier for the planet, the drawback is that other resources (i.e oil and coal) tend to be cheaper"

Answer:

Benefits-

Drawbacks-

Benefits-

Drawbacks-

Answer:

c

Explanation:

Answer: Imma be honest I think it's the 2nd one

Explanation:

Answer:

option b

Explanation:

have a great dayyyyy

Answer:

Answer is a Tape worm

Answer:

The definition of trade off is an exchange where you give up one thing in order to get something else that you also desire. An example of a trade off is when you have to put up with a half hour commute in order to make more money.

Explanation:

Answer:

A, it will increase

Explanation:

nitrogen is essentially like food to plants. so the more they get the bigger they can grow.

Answer:

Yes

Explanation:

Answer:

Las interacciones interespecíficas son determinantes importantes de la dinámica de la población y la estructura del paisaje puede influir en estas interacciones. Todas las especies interactúan con depredadores, parásitos, competidores, etc., como parte biótica de su entorno.

Explanation:

Answer:

Las interacciones interespecíficas son determinantes importantes de la dinámica de la población y la estructura del paisaje puede influir en estas interacciones. Todas las especies interactúan con depredadores, parásitos, competidores, etc., como parte biótica de su entorno.

Explanation:

Espanol

Explanation:

increases

I hope I helped u >~<

The statement about the s exual pictures is TRUE.

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Answer:

Name of the process : phosphorylation.

Explanation:

This process is known as phosphorylation. Glucose can be converted into Glucose-6-phosphate by the addition of the phosphate group from ATP. ATP serves as the biological energy company, releasing energy for both anabolic and catabolic processes and being recharged by energy generated from other catabolic reactions

Answer:

It's not so much what happens to the backyard, it would be overgrown with grass and weeds and probably be a new home to animals like snakes, but its more what would happen to what's in the backyard, tools and bikes would rust, soon anything indicative of a previous owner would hardly be recognizable

Explanation:

If the backyard of a garden is left unattended for years then the grass in that area will over-grow and a number of different organisms will inhabit in the area. The biodiversity of the area increase as well as rusting is observed.

Rusting is the corrosion of iron. Rustin happens when iron is left open in air. The iron metal reacts with the oxygen gas in the humid condition which results into rusting of iron. The vehicles parked in the backyard will rust in this condition.

The biodiversity is the sum total of all the living organisms present in a particular area. When the backyard of a house is left unattended the grass in that area will grow very fast and this will cause the insects to inhabit in that area which will cause increase in the biodiversity.

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Answer:

1570

Explanation:

Answer:

when things are working normally, the amount of air we breath in is about the same as the amount we breath out. But during an asthma attack, air gets trapped in the lungs making it harder and harder to breath

Answer:

Because the organism is asymmetrical and it was able to regenerate, it’s probably (an amphibian), and belongs to the phylum (Mollusca).

In regeneration, the organism is asymmetrical and it was able to regenerate, it’s probably (an amphibian), and belongs to the phylum (Mollusca).

In plants and animals, regeneration is the natural process of restoring damaged or missing cells, tissues, organs, or even entire body parts to full function.

One of the processes by which an organism split into multiple pieces regrows to its original state is regeneration. Stem cells are specialized cells that carry out this process. It happens in life forms that have an exceptionally basic construction with not many particular cells.

Plants and animals can replace or restore damaged or missing cells, tissues, organs, and even entire body parts to full function through a natural process known as regeneration. Regeneration is being studied by scientists for its potential medical applications.

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water molecules are polar.

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