In the above reading, it talks about one population wandering away from the other in search of food as the beginning of the polar bear sub-species. Which of the following best describes what occurred to cause this split of the bear population?

A. The brown bears were killed by disease 125,000 years ago leaving only a population of polar bears.

B. The massive glaciers isolated the populations causing geographic isolation

C. They had a variety of fur color alleles, so all the white furred bears moved north

D. All of the Above

Question 2.
Which of the following is an adaptation that allows a polar bear to survive in this biome?

A. Thick fur to help them stay warm


B. They began hunting seal carcasses and then live seals at the waters edge to gain nutrients to survive


C. Their molar shape changed to adapt to eating seals instead of berries.


D. All of the above

Answer:

The lithosphere

Explanation:

The upper mantle is in between the lower mantle and the earths crust Crust. In other words, the outer most solid shell of the earth. The earth's crust and uppermost mantle form the lithosphere.

Hope this helped!

Answer:

lithosphere

Explanation:

Answer:

Explanation:

DNA utilizes four bases, adenine (A), guanine (G), cytosine (C), and thymine (T), in its code. RNA also uses four bases. However, instead of using 'T' as DNA does, it uses uracil (U). Therefore, if your DNA sequence is 3' T C G T T C A G T 5', the mRNA sequence would be 5' A G C A A G U C A 3'.

Answer:

Sky Blue :)

Yw

Answer:

Blue

Explanation:

Alot of people are saying that the sky is every color in the world but I don't get that

Answer:

A

Explanation:

The central vacuole in plant cells is a large sac that holds water in the cell. Filling the vacuole creates turgor pressure, swelling the cells and allowing the plant to stay upright.

Answer:

presence of ribosomes because they are the main sites of production of proteins

Answer:

3. Presence of ribosomes

Explanation:

Mitochondria has its own ribosomes which help in the synthesis of protiens

Answer:

mitochondria are to produce the energy currency of the cell, through respiration, and to regulate cellular metabolism.

Explanation:

the role of mitochondrion is to generate the energy commodity of the cell, by respiration, and control of cell metabolism.Mitochondrial is the ATP synthesis site for the cell. The amount of mitochondria present in a cell is also a strong predictor of the cell 's rate of metabolic activity; cells that are very metabolically active, such as hepatocytes, may have more mitochondria.

hope this helped!

Answer:

The answer is True.

Answer:

D= Overpopulation will result in drastic climate change.

Explanation:

overpopulation is bad because the increased demand for resources such as fresh water and food, starvation and malnutrition, consumption of natural resources faster than the rate of regeneration, and a deterioration in living conditions.

// have a great day //

Answer:

People can transfer pollen from one flower to another, but most plants are pollinated without any help from people. Usually plants rely on animals or the wind to pollinate them. When animals such as bees, butterflies, moths, flies, and hummingbirds pollinate plants, it's accidental. hope that helps love!!

Answer:

Producing a path for current to flow.

I guess.

Answer:

D

Explanation:

Dominant and the recessive allele are the traits present in the genes that get inherited from the parent to their offspring.

The trait that is visible in the phenotype is called dominant while the trait that gets masked in the proximity of the dominant allele is called recessive.

The correct answer is:

Option C. Jessica inherited one recessive form of the gene from each parent.

This can be explained by :

See the attached image below for the cross:

The genes gets independently assorted and Jessica inherits the recessive form of the genes from both of her parent.

Therefore, Jessica inherited recessive gene one from each parent.

To learn more about independent assortment follow the link:

https://brainly.com/question/19412775

Answer:

D. Random

Explanation:

The term "population distribution pattern" refers to the method or form in which population of a certain organism living in a certain area occupy that area.

For example:

Uniform distribution  pattern in which organisms are arranged in a equal or regular manner in the area. This gives a competition to the organisms of the area with reference to each other.

If we talk about Oysters, they are able to travel many and many kilometers across a certain area. Therefore, they don't stay at a place in a regular manner and this gives them random distribution pattern.

Hope this helps you.. Good luck!

Answer: Many eukaryotic organisms are related based on the shared core characteristics and processes.

Explanation:

The following are the shared core processes shared by all eukaryotes.:

1. Cytoskeleton: It is a network of structural proteins, that helps in movement of cell and organelle support.

2. Membrane-bound organelle: Mitochondria and chloroplast are organelles that formed via endosymbiosis these are present in all eukaryotic organisms.  

The DNA is the basic genetic material that is found in almost majority of living beings on earth. The DNA is being transmitted from the primitive organisms on earth to the modern day organisms. The chromosomes are the  carriers of DNA. These chromosomes are passed from the parents to the offsprings through reproduction. This is the basis of relatedness among organisms and these are also considered while studying the phylogenetic relationships.

Answer

Pacific Plate, oceanic tectonic plate

Explanation:

the large brown plate is   pacific plate was under the ocean and also named after the ocean pacific ocean. so it is easy to guess

hope you understood it . it was my explanation up for more info down i have pasted what they told in google.

Pacific plate

In fact, six of the seven major tectonic plates are named after the continents they contain. The one exception is the Pacific plate, which lies beneath the Pacific Ocean. Not only is this the only major tectonic plate that is mainly underwater, it is also the largest, spanning over 100 million square kilometers.

Pacific Plate. The Pacific Plate is an oceanic tectonic plate that lies beneath the Pacific Ocean. At 103 million km2 (40 million sq mi), it is the largest tectonic plate. The Pacific Plate contains an interior hot spot forming the Hawaiian Islands.

Answer:

The correct answer is option C, that is, have a wider range of environments.

Explanation:

It has been known that geographic isolation is a general way for the initiation of the process of speciation, like the rise of mountains, rivers changing course, migration of organisms, continental drift, due to this what was once a steady population gets differentiated into two or more kinds of smaller populations.  

A mountain range, due to distinctions in temperature and precipitation as a result of different altitudes, can lead to a higher rate of speciation. Due to these differences, a single mountain range can exhibit an enormous array of biodiversity and climate zones.

In comparison to populations living in broad, open grasslands, populations living on rocky, steep mountains would experience a higher rate of speciation due to the mountain's ability to divide populations into smaller subgroups . So, the correct option is C.

Geographic isolation is known to be a common way for the beginning of the process of speciation, similar to the formation of mountains, the alteration of rivers, the migration of organisms, and continental drift. As a result, what was once a stable population becomes divided into two or more different kinds of smaller populations.  

A mountain range might result in a greater amount of speciation because to differences in precipitation and temperature as a result of various altitudes. A single mountain chain can display a huge variety of biodiversity and temperature zones as a result of these variances.

Therefore, the correct option is C.

Learn more about Population, here:

https://brainly.com/question/27991860

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Answer:

I wasn't quite sure what virus you were referring to in your question, but here's a general answer: Viruses use their host cells' machinery to replicate themselves.

If they are a specific type of virus known as a retrovirus, they have the ability to use the host cells' enzymes to change the RNA contained within the virus into DNA (via some type of replication I suppose).

In other cases, if they contain DNA instead of RNA (that is, the virus), they can use the host cell's machinery to create RNA via enzymes involved in transcription and/or they can incorporate that DNA into the host cell's DNA. This is part of a type of viral replication cycle known as the lysogenic cycle.

In another type of viral replication cycle known as the lytic cycle, the virus simply has itself and its genome duplicated until the host cell bursts, releasing the viral material. Here, again, the virus uses the host cell's machinery to replicate itself.

Answer:

Genes are found in their own, separate regions of DNA

Explanation:

Answer:

No one knows yet

Explanation:

They haven't mentioned yet but they have started giving

Please don't take

Thanks.

Corona-virus is spreading around the world, but there are still no vaccines to protect the body against the disease it causes, C ovid-19.

Medical researchers are working hard to change that.

Answer:

Explanation:

Hope this helps you

Answer:

k

Explanation:

that is correct because i did that a few years ago

Answer:

Some enzymes require the addition of another non-protein molecule to function as an enzyme. These are known as cofactors, and without these enzymes remain within the inactive.

Explanation:

^^

Answer: Plant growth over time

Explanation:

i would say that because its very likely that the growth of the plant will change, the rest of them seem like a independent variable. Have a good day hope i helped.

Answer:

there are no examples provided

Explanation:

sorry I can't help without the examples

Answer:the energy from the sun goes to the plant than the plants energy goes into the robin because the robin consumed it.

Explanation:

Answer: A market supply schedule is a chart that lists the quantity supplied for a good or service that suppliers throughout the whole economy are willing and able to supply at all possible prices, so in this case:

Explanation:

Answer:

Cnidarians and animals with bilateral symmetry.

Explanation:

I don't have a very good explanation as to how I got this answer, but I can tell you that I got this question right in my test. Good luck with yours. :)