Have you ever noticed that aside from zoos, you don't see kangaroos, wombats, and koala bears outside of Australia? This is because there is a trench that is a "biogeographical transition zone between Asian and Australian flora and fauna". What is the name of that trench?

Answers

Answer 1

Answer:

Wallace Line

Explanation:

Wallace Line is a boundary line which is a transitional zone between Asia and Australia. This boundary drawn by the British naturalist Alfred Russel Wallace in 1859. This boundary restricts the transferring organisms such as flora and fauna from Australia to Asia. So that's why kangaroos, wombats, and koala bears are only present in Australia not in the continent of Asia.


Related Questions

When observing a group of children at a daycare center, Emily made the following observations:
Five year old children played in one location during independent play time. Three year old children moved between different activities, rather than staying in one location.
By analyzing Emily’s observations, what could be a valid conclusion?
a.
Five-year-old children have longer attention spans than three-year-old children.
b.
Three year old children do not like being in daycare.
c.
Five-year-old children are favored over three-year-old children at the daycare center.
d.
Three-year-old children are favored over five-year-old children at the daycare center.

Answers

Answer:

the answer is a

Explanation:

you can read twice. it show the 5 year emily have longer attention. thay why he see 3 year children go around

the answer is a. five year olds have a longer attention span which means that they can do one activity for a longer amount of time. three year olds are easily distracted so it would be more beneficial to keep them intrigued with multiple short activities.

Which is a function of the cell membrane? performs photosynthesis controls what enters and leaves the cell produces proteins provides energy to the cell

Answers

Answer: controls what enters and leaves the cell

Explanation: it is a barrier keeping the constituents of the cell in and unwanted substansces out and is also a gate allowing transport into the cell of essential nutirnts and movement from cell of waste products.

The cell membrane is also referred to as the plasma membrane or cytoplasmic membrane of the cell. It lays various functions in the cell.

The correct answer is:

Option B. controls what enters and leaves the cell

Role of the cell membrane are:

The cell membrane is a biological membrane, which separates the interior of the cell from the external environment.

The cell membrane is selectively permeable such that it allows certain molecules to pass through them.

The cell membrane controls the entry and exiting of molecules from the cell.

Thus, the correct answer is Option B.

To know more about cell membrane, refer to the following link:

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The precursor of EGP is translated from a transcript that has had one non templated nucleotide added to the open reading frame. This change does not create or eliminate a stop codon. Compared with the protein sGP, which is produced from the unedited transcript, EGP most likely has the same primary:

Answers

Answer:

Explanation:

It was added somewhere in the middle. Since this is a frameshift, everything downwind of the addition will most likely be different.

The question is basically asking, if you change everything from the middle to the end of an amino acid sequence, which end changes and which end would remain the same?

It basically asks, when amino acids are assembled into proteins, are they built from the amino to the acid direction, or the acid to the amino direction?

The answer is that amino acid sequences are always assembled N to C, much like nucleotide sequences are built 5 to 3.

Which are the 3 major areas of society affected by science?

Answers

Answer:

Explanation:

the three major areas of society affected by science are economic democratic and cultural

mark me brainlist if my answer is right

The linear strands of DNA in eukaryotes are efficiently packed within the nucleus of the cell. The packing of DNA strands is mediated by proteins called

Answers

Answer: Chromatin.

Hi! The answer you're looking for is chromatin.

Chromatin helps to organize DNA into the strands you're talking about, which are called nucleosomes.

Glad to help!

Based on the data table below, which number would be the BEST choice for the top number of the scale on the vertical axis of a scatter plot showing this data? (PLZ HELP ME UNDERSTAND AND ANSWER THIS:)

Answers

Answer:

D) 70

Explanation:

Vertical is going up so it would the highest number.

Which statement correctly compares the "Analysis" and "Conclusion" sections of a lab report?

Answers

Answer:

Hello. You did not enter the answer options, but I can help you by stating that the correct comparison between "analyze" and "conclusion" is one that shows that "Analysis" is able to compare specific research data, while "conclusion" is able to suggest additional research to arrive at more concrete data.

Explanation:

In a scientific research, the "Analysis" section is where the specific research data and the interactions and information that can be extracted from them are analyzed, in a succinct and explanatory way. This section is very important to present how these data were acquired and how they work within the theme developed in the research.

The section called "conclusion", in turn, presents the section where the research will conclude the established theme, showing an affirmation discovered through the research or suggesting additional research that will help to establish an efficient conclusion.

Answer please..... I'll be very grateful to you

Answers

The answer is b, 12 ng
The answer is 12 ng the option B

the absence of the sry gene will result in: a) external genitalia of a female; internal genitalia of a male b) A phenotypic female c) and intersex individual d) A phenotypic male e) external genitalia of a male; internal genitalia of a female

Answers

Answer:

The correct answer is option b.

Explanation:

Sex determining Region of the Y chromosome gene or sry gene is a important gene found on the Y chromosome which is responsible for testis development or so the male characteristic. An XX individual with the SRY gene of the Y chromosome, will develop as male.

Hence, Absence of SRY gene will not result in phenotypic male So,option d is not correct.  intersex have male characteristic so option c is not correct.

Absence of SRY gene will lead to development of phenotypic female due to form ovary and Fallopian tube in absence of this gene

Hence, option B is correct

Jacqueline is a 42-year-old woman who is in her third trimester of pregnancy. Jacqueline has had three other children; their birth weights were 9.0 lbs, 9.5 lbs and 9.3 lbs. Jacqueline is a smoker with high blood pressure, and has gained 75 pounds during the last 4 months. 1. What is your diagnosis? 2. What test can you use to confirm your diagnosis? 3. What is Jacqueline's prognosis? 4. What treatments are available?

Answers

 The health condition identified is diabetes in pregnancy. To confirm my diagnosis, blood glucose test is performed.Jacqueline's prognosis, that is cause of the medical conditions, is gotten from her history of over weight babies and smoking. The available treatment is insulin injections.

Diabetes mellitus is a metabolic condition that occurs when the pancreas fails to produce enough insulin or when the body fails to use the insulin produced for glucose metabolism thereby leading to hyperglycaemia (increased blood glucose levels).

In pregnancy, diabetes is suspected in women who give this type of history:

Previous Delivery of babies weighing 9.0lbs and above.Cigarette smoking. And abrupt weight gain toward term of pregnancy.

Constant monitoring of Jacqueline is required to prevent complications during and after the pregnancy. This is done by performing series of tests and giving insulin injections when the need arises.

Learn more here:

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What happens during rusting of an iron nail?

1 sulfur and oxygen combine to form a sulfur dioxide coating

2 iron and oxygen combine to form iron oxide

3 sulfur, iron, and oxygen combine to form iron sulfoxide

4 iron and sulfur combine to form iron sulfide

Answers

Answer: the correct answer is B number 2

Explanation: I just answered this question

basic question for fun . HOW TO FIGHT WITH TYPES OF VIRUS IN THE WORLD AND HOW GET RID FROM IT EXAMPLES: CORONA VIRUS, INFLUENZA, TYPHOID, HEPHATITISAND CHLOREA?

Answers

Answer:

Boost immunity power( follow these):

1. Have enougn sleep.

2. Be happy...overcome stress.

3.Do exercises frequently.

4. Have regular check ups ;these may help to diagnosis on early stage.

5. Consume the foods which boosts immunity.

6. Be mentally strong.

Explanation:

There isn't proved ideas ...however, we can fight by making our immune system strong...

HIT LIKE

1. Bacteria after transduction contains :

a) Enhance supply of ATP
b) Numerous new plasmids
c) Fewer DNA segments than it originally had
d) New DNA segments​

Answers

D

Explanation:

transduction is the process by which forging DNA is introduce into a cell by virus or viral Vector ,so bacteria after transduction contains new DAN segment

how much water was retained by soil C​

Answers

Answer:

we dont know sorry but i dont know

When a human egg is not fertilized, extra blood and tissue from the uterus are released through the vagina in a process called

Answers

Answer:

Unless the egg is fertilized by a sperm while in the fallopian tube, the egg leaves the body about 2 weeks later through the uterus — this is menstruation. Blood and tissues from the inner lining of the uterus combine to form the menstrual flow, which in most girls lasts from 3 to 5 days.

Which of the following is true about oncogenes

Answers

Answer:

genes involved in the cell cycle following a mutation become oncogenes.

Please i need help !!!☹️

Answers

Answer: C. 9

Explanation:

Gestation refers to the time between when a baby is conceived till the baby is delivered. This is why the period of pregnancy is known as the Gestation Period.

During that time and after the fertilized egg implants itself in the uterus, the baby develops and grows until it is ready to be delivered.

The structure this occurs in is the uterus (womb) which is labelled 9 in the structure above.

Which term best describes the difference in colors of the birds below? 4 birds are shown. One has light brown feathers with darker wings. One has very dark feathers with lighter wings. Another has medium brown feathers with light wings. The last one has medium brown feathers with very dark wings. natural selection reproductive maturity genetic variation genetic drift Mark this and return

Answers

Answer:

genetic variation

Explanation:

Genetic variation refers to the difference in genetic content of organisms within a population. The genetic makeup of living organisms are made up of GENES, which exists in contrasting pairs called ALLELES. Each allele is responsible for variation in traits exhibited by the organisms. Differences in the allelic content of organisms of the same species leading to the display of varying phenotypic characteristics is referred to as GENETIC VARIATION.

This is the case in the example given in which four birds in a population possess a range of wing and feather colors i.e light brown feathers with darker wings, dark feathers with lighter wings, medium brown feathers with light wings, and medium brown feathers with very dark wings, all resulting from a variation in their genetic content. Hence, this is an example of GENETIC VARIATION.

Answer:    C. Genetic variation

Explanation: :)

RNA thường bắt đầu bằng base nào

Answers

Answer:

Xin lỗi vì bản dịch xấu.  Nó được tạo thành từ các căn cứ adenine, cytosine, guanine và uracil.

Explanation:

So với RNA, DNA có thymine thay vì uracil trong một phân tử di truyền polymer.


A scientist wants to find the percent of teens that like the taste of "brand X"lemonade over "brand Y" lemonade. She conducts a taste test of
500 teenagers. She gives each teen a bottle of lemonade with the labels showing the brand of each lemonade. She asks each teenager to taste
each brand after drinking water in between. She finds that 50% of teens like brand X and 50% like brand Y lemonade. Why are the results
of the survey most likely unreliable?

a

Adults were not interviewed.

b

Not enough teens were interviewed.

с

The investigation was based on taste,

d

The lemonade labels introduced bias.​

Answers

Answer:

c

Explanation:

beacuse the investigation was beacesd on taste  

Which sentence about protist is accurate

Answers

Answer:

there are no sentences

Explanation:

A graduate student studying biology at the University of Nebraska has identified a new species of spider found only in Eastern Nebraska around Omaha. The graduate student determines that the spider has six homologous pairs of chromosomes. How many chromosomes would a cell in that spider have during metaphase of mitosis?

Answers

Answer:

12 chromosomes

Explanation:

Mitosis is a type of cell division that involves the formation of two genetically identical daughter cells. The two daughter cells are genetically identical in the sense that they contain the same number of chromosomes as the parent cell. Mitosis involves four stages namely: Prophase, Metaphase, Anaphase and Telophase.

In the metaphase stage as stated in this question, homologous chromosomes align at the equator of the cell called cell plate, before each chromatids are pulled apart by microtubules at the Anaphase stage.

According to the question, the spider being worked on has 6 pairs of chromosomes, which will align at the cell's equator during metaphase stage of mitosis. Since the replicated chromosomes (chromatids) are yet to separate to opposite poles of the cell, the cell will still contain 12 chromosomes at the metaphase stage.

N.B: Each chromosome contains 2 chromatids or replicated chromosome, which will be separated at the Anaphase stage. Each chromatid will be an individual chromosome after cytokinesis.

What causes potential energy that accumulates in a fault to transfer to the surface during an earthquake? A. refraction B. Triangulation C. Seismic waves D. Lithostatic pressure

Answers

Answer: C.

Explanation: Seismic waves causes potential energy that accumulates in a fault to transfer to the surface during an earthquake.

Seismic waves cause potential energy that accumulates in a fault to transfer to the surface during an earthquake. So, the correct option is C.

What are Seismic waves?

A seismic wave is defined as a wave of acoustic energy that travels through the Earth or any other planetary body that can be generated by an earthquake, volcanic eruption, magma movement, a large landslide, and a large man-made explosion that produces low frequency acoustics energy.

There are three basic types of seismic waves which are as follows:

P-wavesS-waves Surface waves.

P-waves and S-waves are sometimes collectively referred to as body waves.

Thus, Seismic waves cause potential energy that accumulates in a fault to transfer to the surface during an earthquake. So, the correct option is C.

Learn more about Seismic waves, here:

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Characteristics of Living Things
7. The basic unit of organization of living things is a(n)
A. atom B. organism
C. cell
D. organ
8. Storing energy obtained from food is an example of
A. evolution B. homeostasis
C. response
D. growth
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9. The passing of genes from one generation to another is
A homeostasis
B. response
C. growth D. heredity
10. The main function of reproduction is to
A. have enough male and female to reproduce
B. overpopulate
D. to be able to replace themselves.
C. grow
11. The milkweed plant feeding the caterpillar is an example of
A. interdependency.
C. preparing to die after a long life.
B. reproduction
D. heredity
12. Adaptation is very important to species because it allows them to
A. grow and become successful
C. Die
B. produce offspring better equipped to survive.
D. produce many offspring.

Answers

Answer:

bbbc

Explanation:

all of these were to long so

AZT is a reverse transcriptase inhibitor. How does this drug prevent the replication of a retrovirus

Answers

Answer:

AZT is a thymidine analog

Explanation:

Azidothymidine (AZT) is an antiviral drug used for the treatment of the Human immunodeficiency virus infection (HIV/AIDS) by preventing the transmission of HIV from infected cells. AZT is capable of suppressing the activity of the enzyme reverse transcriptase of the retroviral HIV genome, which enables it to copy RNA into DNA. In infected cells, this double-stranded DNA is integrated into the host genome which is then instructed to produce identical HIV copies. AZT is a thymidine analog that is incorporated into DNA and thus interferes with DNA synthesis, thereby inhibiting cell proliferation.

Pleaseeeee help me. When a rabbit eats a plant, nutrients from the
plant become available to the tissues of the
rabbit. During this process, some of the energy
from these nutrients is lost and the energy
becomes heat and unavailable chemical energy.
This energy loss partly explains why the total
energy is greater in
A. predator populations than in scavenger
populations.
B.consumer populations than in producer
populations.
C. producer populations than in consumer
populations.
D. predator populations than in prey populations,

Answers

Answer:

C.

Explanation:

Answer:

C.

Explanation:

total energy is greater in producer populations than in consumer populations

Why are so many of the same genes found in almost all living organisms

Answers

Answer:

Molecular homology occurs when different species inherit similar molecules, such as nucleic acids or proteins, from an evolutionary common ancestor. In many cases, especially for essential housekeeping genes involved in protein synthesis or DNA replication, genes are homologous across most, if not all, living organisms. Hope this helps!

Explanation:

Which is one of the bases found in DNA?
O A. Serine
O B. Leucine
O C. Lysine
O D. Cytosine

Answers

Answer:

D. Cytosine

Explanation:

The bases of the DNA(a material found in the Nucleus that contains genetic information) are four in number.

ACGT:

An acronym that stands for

A= Adenine

C= Cytosine

G= Guanine

T= Thymine

Hope this helps ;) ❤❤❤

Cytosine is the base which presents in the DNA. Therefore, option "D" is correct.

What is nucleotide base pairing?

There are five types of nucleotide bases adenine, cytosine, guanine, thymidine, and uracil. These divide into two classes of nucleotides pyrimidine and purine nucleotide bases. Pyrimidines are uracil, thymine, and cytosine whereas adenine and guanine are purines.

DNA consists of adenine, cytosine, guanine, and thymidine. In RNA, adenine, cytosine, and guanine are present but thymine is replaced by uracil.

Pyrimidine always binds with the purines through hydrogen bonding. Adenine binds with thymine. Cytosine binds with guanine. But when adenine pairs with uracil in RNA.

Therefore, these four bases are basic units of DNA.

Learn more nucleotide base pairing, here:

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Al wonders if adding salt to water will affect how long it takes the water to freeze. Al thinks that salt water will freeze more quickly than fresh water. He decides to check his hypothesis by conducting an experiment. Al takes two ice trays and fills one with distilled water and the other with distilled water that has two tablespoons of salt added. He makes sure he puts exactly the same amount of water in each ice tray. Al takes the trays and puts them side by side in the freezer. Al checks the ice trays every 10 minutes to see if the water in each tray has begun to freeze. Al finds that after 20 minutes the water in the ice tray without the salt has started to form ice, while the ice tray with the salt water is still completely liquid.
What is his hypothesis?
a. Salt water freezes slower than fresh water.
b. Water freezes in a freezer
c. Salt water freezes faster than fresh water.
d. water will freeze in 20 minutes

Answers

salt water freezes slower than fresh water

what type of rocks form from decaying plants

Answers

Answer:

Types of rocks are three types in :- metamorphic, igneous and sedimentary rocks, these are rocks formed dirt,soil and organic matter.

Explanation:

Sedimentary rocks are is known to plant contain animal fossils, there is a high level of animals and plant they develop layer of rock fuel include oil natural gas.

Sedimentary rock due to the consist addition of new particles by the water and erosion,basins found on to the earth fore arc and back arc basins.

Coal is the type of sedimentary rock that is plant and dead animals or organic matter,long period under time right conditions.

Sedimentary rock is different type carbonate, coal, chemically performed  carbonate rock several kind of chalk and carbonate minerals.

Metamorphic and igneous rocks are abundant and they the most of rocks are on the earth actually are sedimentary rock,an animal and plant refuse one location and settle there soil and organic matter decaying animals.  

Answer:

Organic sedimentary rocks form from decaying plants. Over time, organic matter from decaying plants and animals is pressed together and compacted to rocks.

Explanation:

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