Why are the oldest fossils found in the oldest rock layers?

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Answer 1
Answer:

Answer:

Explanation:

This is usually because when they first became fossils, they embedded into the ground. Over many years afterwards, more layers came to cover that layer and so on. Newer fossils would be embedded into newer layers. That's why the older ones tend to be found the deeper you look.

Answer 2
Answer:

Answer: Well probably because of the fact that over time the rocks stack up on top of each other because of weathering and erosion and as they stack they get deeper and deeper, so fossils that were at the top one time will slowly sink as the time progresses.


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A cell may transport a substance in lysosomes / vesicles if the substance is too large to cross the membrane.

Answers

Answer:

The correct answer would be vesicles.

Vesicles are defined as fluid filled sac or bladder enclosed by lipid bilayer.

Transport vesicles are specialized vesicles used in transportation of material (such as proteins, enzymes, hormones, neurotransmitters etc) within the cell as well as outside the cell.

Proteins required by cell organelles and plasma membrane are usually synthesized by ribosomes at rough endoplasmic reticulum and transported to Golgi bodies with the help of vesicles for further maturation and modifications.

Post-modifications these proteins are transported to their destined organelles (like plasma membrane, peroxisome, outside the cell etc) after packed into the transport vesicles.

The lipid membrane of the transport vesicle merges with the plasma membrane in order to release these proteins outside the cell.

In contrast, lysosomes are the cell organelles which contain digestive enzymes. They help in digesting food particles and unwanted cellular components or cellular debris.

Which of the following chemical food preservatives is used in the wine industry but may cause asthmatic reactions in some individuals?nitrites
sulfites
propionic acid
benzoic acid

Answers

Answer:

Sulfites  are thechemical food preservatives which used in the wine industry but may cause asthmatic reactions in some individuals .

Explanation:

A chemical food preservative is a chemical species which are added to a product such as the beverages , food , drugs , paints , wood etc , to prevent  the process of degradation by microbes .

Sulfite is also an example of chemical food preservatives , sulfites helps the food from turning brown , in the presence of air .

Apart from helping the food from degrading , it too have same life - threatening symptoms for some people suffering from asthma .

Symptoms are - breathing difficulty , stomach cramps , tightness in the chest area , diarrhea .

Sulfites are used as a food preservatives in , wine , dried fruits , frozen potato , certain jams .

What percent of species will be gone in 100 years

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One half of plant species and animal species will be gone in 100 years

Identify and explain if cloning is a form of asexual reproduction or sexual reproduction[Written response] [45 POINTS!!!] Please help

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Answer:

Organism cloning. Organism cloning (also called reproductive cloning) refers to the procedure of creating a new multicellular organism, genetically identical to another. In essence this form of cloning is an asexual method of reproduction, where fertilization or inter-gamete contact does not take place.

Describe the animals and vegetation that you see in the different climate zones.

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Answer:

Explaining Below V

Explanation:

There are 5 different kinds of climates globally.

Tropical

Dry

Temperate

Continental

Polar

Tropical climates are very hot and humid. There's lots of rain (estimated around 59-60 inches per year). The average temperature tends to be over 60°F or 18°C. Plants you can find are incredibly diverse in both plants and animals. You can find animals such as monkeys, parrots, anacondas, jaguars, tigers, and many more. The tropics have the greatest plant diversity on the planet. The climate generally is centered around the equator.

Dry climates are generally very warm and dry. Humidity is very unlikely as everything is mostly dry heat. There's very little precipitation. Dry climates usually consist of deserts (Fe: Sahara desert). Plants such as cacti, succulents, wildflowers, and small trees, shrubs, and grasses. Animals can vary from things such as tarantulas, rattlesnakes, foxes (only some), camels, and rabbits. Depending on the desert, the heat can shoot up past 100°F while being frigid at night.

Temperate climates are generally warm summers with storms and mild winters. Plants can range from owls, raccoons, sparrows, meadowlarks, deer, and occasionally bears. This climate fluctuates the most in temperature compared to other climates. Plants can range from things like clover plants to a common bean.

Continental climates have mediocre summers with very cold winters. In the winter, snowstorms and strong winds are most likely. Sometimes, the temperature can drop below -22°F. Plants can range from Lavender and fern to Carolina Lupine and Silver maples. Animals can consist of squirrels, chipmunks, prairie dogs, skunks, and raccoons.

Polar climates are frigid. Its cold year round. There's animals such as polar bears, foxes, wolves, and caribou. Plants can vary from Tundra moss to Arctic Willow. Plants are generally smaller and are more like tiny shrubs.

Hope this helps.

Why lenses in a microscope is important. essay

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Answer:

So you can see what is on the glass slide