The tundra is a cold, ice-covered region on Earth. Recently there has been an increase in the number of plants growing there. This new plant growth is MOST likely due to A) an effort by the local people to plant trees.
B) global warming, resulting in warmer temperatures on Earth.
C) more people going to the area for recreation and vacations.
D) animals leaving the tundra for warmer regions with less snow cover.

Answers

Answer 1

Answer:

Answer: B) global warming, resulting in warmer temperatures on Earth.

Explanation:

Tundra is the coldest biome of the world. It exhibit very low temperature range and treeless plain with snow precipitation. The global warming is the phenomena which is related with rise in global temperature due to abundance of greenhouse gases into the atmosphere. These gases are released into the atmosphere by burning of fossil fuels, industrial gaseous release and deforestation. These gases traps the heat energy from sunlight making the atmospheric temperature warm. As a result of global warming the ice caps and snow bearing areas of the tundra biome will deplete. The melting of the ice will provide proper unfrozen soil for the growth of plants. Hence, new plants will increase in numbers due to global warming.

Answer 2

Answer: The tundra is a cold, ice-covered region on Earth. Recently there has been an increase in the number of plants growing there. This new plant growth isMOST likely due to global warming, resulting in warmer temperatures on Earth.
Thus the answer is letter B.

Related Questions

Fingerprints cannot be used to identify particular people. True False
A biome that has a large amount of rainfall,high temperatures, and a poor soil is a
An organelle inside eukaryotic cells where the dna is located
Why do scientists believe that there used to be a single continent, and what was it called?
Compare and differentiate the types of neurons that synapse in the posterior, lateral, and anterior gray horns of the spinal cord.

How do biological communities get to be the way they are?

Answers

Biological communities evolve through ecological succession. Ecological succession is the change in the structure and composition of species in a specific ecological community over time that can be observed. Ecological succession can occur as a natural process of time, or it can be instigated by a sudden event, a wild fire, for example. There are natural changes that occur that effect the species type and variation that exists and thrive in the communities.

Answer:

ecological succession

Explanation:

If you cut your finger, which organ systems will be involved in the healing process? How do they work together?

Answers

Answer:

The circulatory system stops the bleeding with platelets, which provide a seal so that healing can begin. The immune system kills off any bacteria that get into the wound and helps to eat away any debris so healing can begin. The nervous system responds to the cut with pain, telling me that an injury occurred.

Explanation:

This is the answer from Edmentum

Answer:

Platelets from the circulatory system halt the bleeding, creating a seal that allows healing to start. In order for healing to start, the immune system eliminates any germs that enter the wound and aids in the digestion of any waste. The cut causes my neurological system to produce pain, alerting me to the fact that I've been hurt.

Explanation:

paraphrased answer from edmentum

Match the following carbohydrate molecules with the class of molecule that they belong to:Molecules: (I) Glucose; (II) Starch; (III) Sucrose

Classes:

A) Polysaccharides
B) Disaccharides
C) Monosaccharides

Answers

(I) Glucose; is C
(II) Starch; A
(III) Sucrose B

A) Polysaccharides
B) Disaccharides
C) Monosaccharides

Monosaccharide, disaccharides, and polysaccharides are the three major categories of molecules in Carbohydrates.

Monosaccharides, known as simple sugar, is the simplest form of carbohydrates. Its basic molecular formula is CH2O. Monosaccharides are glucose, fructose, and galactose. Its primary function is to be the source of energy of living organisms. It is also the primary requirement for the formation of disaccharides and polysaccharides.

Disaccharides are formed when two monosaccharides are bonded together through a covalent bond. Common Dissaccharides are sucrose (glucose+fructose) or table sugar, maltose (glucose+glucose), and lactose (glucose+galactose). Its primary function is to provide nutrition for monosaccharides. Sugar in food is mostly dissaccharides.

Polysaccharides are formed when another monosaccharides is bonded to the disaccharides. This bond is called glycosidic bond. Two major polysaccharides are starch and glycogen. Starch is made by plants while glycogen is made by animals. Polysaccharides' major function is to immediately release energy from its storage. When glucose is consumed, some of them are stored and will only be released when the body needs it to satisfy the body's immediate need of energy.

Final answer:

Glucose is a Monosaccharide, Starch is a Polysaccharide, and Sucrose is a Disaccharide. Monosaccharides are simple sugars, Disaccharides are two sugar molecules, and Polysaccharides are complex carbohydrates.

Explanation:

The carbohydrate molecules belong to the following classes:

(I) Glucose belongs to the class of Monosaccharides.
(II) Starch belongs to the class of Polysaccharides.
(III) Sucrose belongs to the class of Disaccharides.

To explain, Monosaccharides are the simplest form of carbohydrates, such as glucose. Disaccharides are two monosaccharide molecules linked together, in this case, sucrose is composed of glucose and fructose. Polysaccharides are complex carbohydrates, made of many sugar units - starch is one such example.

Learn more about Carbohydrate Classification here:

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A microbiologist observed the genetic sequence of DNA change fromTAC GCA TGG AAT
AUG CGU ACC UUA
to
TAC GTA TGG AAT
AUG CAU ACC UUA.

Name the kind of mutation that occurred.

insertion
deletion
substitution

Answers

i think substitution

A student explains the formation of the planetary system as follows. "The birth of the planetary system begins with a rotating cloud called nebula which contains hot gases. When these gases cool, the nebula expands and becomes a flattened disk. Gravitational force causes rings of gases to be left behind when the nebula expands. At the center of the nebula, the gases combine to form the sun and the planets form in the outer flattened portion of the disk.
What is the flaw in the students explanation?
A. The nebula contracts and shrinks instead of expanding
B. The gases in the nebula get heat

Answers

A. The nebula contracts and shrinks instead of expanding

Nebula is the cloud of interstellar dust and gas that forms a star. It is collborately shaped during colliding and collapsing of the interstellar mediums this is influenced by the gravitational attraction of the atoms and particles in the entites. Hence, there are three types of nebular namely, are classical nebula, diffuse nebula, planetary nebular and supernova remnants.

Which of the following is not a direct fate of the energy flowing through photosynthesis? a. carnivores b. cellular respiration c. herbivores d. heat sinks

Answers

Answer:

The correct answer is a. carnivores.

Photosynthesis is the process by which plants make their food from carbon dioxide and water in the presence of sunlight and chlorophyll. Hence, they convert light energy into chemical energy (food or glucose).

This energy is first utilized in the cellular respiration and then the rest in transferred to the primary consumers i.e. herbivores which feed on green plants.

They use this energy in their metabolic processes. The rest is transferred to the secondary consumers i.e. carnivores which feed on the herbivores.

Hence, energy from the photosynthesis indirectly passes to the carnivores via herbivores.

Carnivores among the following choices is not a direct fate of the energy flowing through photosynthesis. The correct option among all the options that are given in the question is the first option or option "a". It is basically neither transmitted or absorbed or reflected. I hope the answer comes to your help.

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