Elephant tusks are either present or absent due to genetics, specifically the existence of key genes that regulate tusk growth. Environmental elements, however, can also affect the proportion of tuskless elephants in a population.
Elephants are frequently hunted down during conflicts or wars for their ivory tusks, which are highly sought-after on the illicit market. Over time, the population of elephants with tusks may decline as a result of this selective hunting of those with them.
The age range of 10 to 20 years old is essential because it coincides with the period of time when elephants usually begin to grow their tusks. Around the age of 6 to 8 years, young elephants may start developing their tusks, and by the time they are 10 to 20 years old, their tusks should typically be more noticeable and developed.
It is possible that many young elephants with developing tusks will be killed if a conflict or a period of rampant poaching takes place during this crucial time, which will reduce the number of tusked elephants in the population. After such a conflict or a period of heavy poaching, there can be a larger percentage of tuskless elephants between the ages of 10 and 20.
This theory makes the assumption that there was greater poaching or selective hunting occurring during the conflict, which would have a disproportionately negative effect on elephants with tusks. In order to provide a more comprehensive knowledge of the issue, additional examination of local conditions and data would be required. The individual situations and variables affecting elephant populations can differ.
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Which example is a body fossil?
dinosaur footprint
shrimp burrow
fossilized animal droppings
wooly mammoth tusk
Answer:
D. wooly mammoth tusk
Explanation:
i took the test
Answer: wooly mammoth tusk
Explanation: took da test
Which of the following are chemical changes? Select all correct
answers.
A. table salt dissolving in water
B. a liquid evaporating to form a gas
I C. a force causing a sheet of metal to bend
D. wooden logs burning to form ash
E. hydrogen and oxygen forming water
Answer:
D and E
Explanation:
The others are physical methods and can be separated again.
Hope this helps :)
Ashes (which are made of carbon), carbon dioxide gas, water vapor, heat, and light are produced when wood is burned. Since this change cannot be undone, it is a chemical change. Since oxygen and hydrogen unite to create a single product, Thus option D and E is correct.
What is chemical changes?A chemical change is the transformation of one substance into another, the emergence of new compounds with distinct properties, or any combination of these.
It happens when two compounds mixes to create a new material (synthesis or either decomposes to form more substances).
Chemical synthesis, or, alternatively, chemical breakdown into two or more separate molecules, occurs when one material reacts with another to create a new substance.
These processes are referred to as chemical reactions, and they are typically irreversible barring additional chemical reactions.
Therefore, burning of wooden logs and formation of water is an example of chemical changes.
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Im sorry but i need the answer to this question to...
Answer:
A colloid is a heterogeneous mixture in which the dispersed particles are intermediate in size between those of a solution and a suspension. ... Because the dispersed particles of a colloid are not as large as those of a suspension, they do not settle out upon standing.
Hope that helps!♡
An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of _____ amu
Answer:
The answer is 13
Explanation:
To find the amu you have to add the # of protons to the # of neutrons.
where did the extra chromosome in down syndrome come from?
Anna wanted to see what battery lasted the longest. She put each battery into a clock and recorded the time that the clock stopped. She used Duracell, Energizer, Kroger brand, and EverReady. Independent Variable (IV): _Type of clock_____________________________________________ __________________________________________ Dependent Variable (DV): ______________________________________________ Control: _____________________________________________________________ Constants:____________________
Answer:
Independent variable: Type of battery
Dependent variable: Time the clock stopped
Control: None for this experiment
Constants: Same type of clock
Explanation:
Independent variable in an experiment refers to the variable which the experimenter changes or manipulates in order to bring about a measurable response. In this case, the independent variable is the TYPE OF BATTERY USED.
Dependent variable is the variable that responds to changes made to the independent variable. It is the measured variable in an experiment. In this case, the dependent variable is the TIME THE CLOCK STOPPED FOR EACH BATTERY
Control is the group that does not receive the experimental treatment. In this case, NO control group is USED.
Constant is the variable that the experimenter keeps unchanged throughout the experiment for all groups. The constant in this experiment is the CLOCK USED.
Answer:
Independent variable: Type of battery
Dependent variable: Time the clock stopped
Control: None for this experiment
Constants: Same type of clock
Explanation:
HELPPPPPP ASAAPPPPPPPPP
how many plant species of the tropical rain forest are identified as having some measure of cancer-fighting ability?
The National Cancer Institute (NCI) has screened approximately 35,000 plant species for potential anticancer activities. Among them, about 3,000 plant species have demonstrated reproducible anticancer activity
In Hawaii, new land forms when lava erupts from Kīlauea volcano and hardens. The new land is without any living things. The first organisms to populate the surface of that new land are known as species. With time, a series of changes called succession occur on the new land through which it becomes colonized by a variety of organisms.
Answer:
Primary succession
Explanation:
The new landforms that are devoid of any vegetation have barren and rocky environment are colonized by the first plant species like grass and moss is called as primary succession which changes with time and occurs on new lands that not colonized yet and later on gets colonized a variety of organisms.Which of the following result in the formation of a dome mountain? Rock layers tilted by vertical subsurface pressure Vertical movements along fault lines Plates colliding causing rock to fold upward together A block of rock lifting at the fault line
Answer: Rock layers tilted by vertical subsurface pressure
Explanation:
Answer:
a
Explanation:
The fraction whose denominator is 8 more than the numarator
Answer:
Explanation:
1/9
Answer:
[tex]\frac{8}{16}[/tex]
Explanation:
Describe why Canada geese migrate to meet their basic needs.
Answer:
Canada Geese migrate because when winter gets harsh the lakes, ponds, and streams all freeze over so then the Canadian Geese can't eat, so they migrate to somewhere where there is open water. ... From their original home in the North the Canadian Geese fly all the way down to the south.
Explanation:
Answer:
Canadian geese eat grass, during the winter in Canada the snow either covers all pf the available grass, or it dies. So they travel to warmer, southern regions where their grass is still abundant.
i need help with this,
it’s for biology
Explanation:
this is your answer
I hope it is clear
Answer: This is the REAL answer smh
Explanation:
how do organisms generate energy when oxygen is ot available
Answer:
Fermentation releases energy from food molecules by producing ATP.
What’s the biggest change in skull anatomy that occurred from the dawn of horse to the modern horse
Answer:
Each skull has a large diastema, or gap between the front and back teeth. 2. What is the biggest change in skull anatomy that occurred from the dawn horse to the modern horse? The size of the skull is dramatically larger in the modern horse.
Explanation:
The main change in skull anatomy that occurred from the dawn horse to the modern horse is that the skull of the modern horse is dramatically larger.
What are the characteristics of the dawn horse?Eohippus, (genus Hyracotherium), also called dawn horse, an extinct group of mammals that were the first known horses. They flourished in North America and Europe during the early Eocene (56-33.9 million years ago).
Eohippus, "dawn horse" or more correctly called Hyracotherium, which lived in the Eocene approximately 55-58 million years ago, is the oldest ancestor of the modern horse.
Hyracotherium, or eohippus (dawn horse), as scientists called it, first appeared on earth as a small, shy creature no bigger than a dog. It existed between 55 and 5 million years ago.
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“I have been trying to get the population of a fish pond to 80 for 3 hours”
This is a question my friend is asking, if someone could quickly answer by today that would be greatly appreciated :]
Answer:
[tex]well, \: i \: think \: your \: friends \: get \: rate \\ \: is \: \frac{80 \: p}{3 \: hrs} = 26.67 {p(hrs)}^{ - 1} [/tex]
PLSSSS HELPP IT IS DUE IN 10 MINS!! I WILL GIVE BRAINLIEST!
If Cytosine makes up 33% of a DNA sample, what percentage of the DNA is made up of thymine containing nucleotides?
Answer:
Since cytosine and guanine are present in equal amounts, we can simply divide their sum by 2. The final composition is 22% adenine, 22% thymine, 28% cytosine, and 28% guanine.
Explanation:
Which text would MOST likely require the strongest reading skills?
A: a list of library books
B: a newspaper article
C: rules for a gym membership
D: a restaurant menu
Answer:
C
Explanation:
The terms and conditions of contracts are very complex and hard to understand.
Your model should clearly illustrate cellular division (mitosis) as well as differentiation into specialized cells
can someone tell me what to draw i really dont kno?
Cellular division (Mitosis) is the biological process whereby a parent cell breaks itself into different parts called daughter cells.
This process is important because it helps to divide cells so that they can:
Experience growthRepair broken cellsReproduce, etcCellular differentiation is the process of a cell going from one form to a more specialized cell.
A good example of this is the process of a fetus being formed from a single celled zygote.
Attached below is an image of cell differentiation and cellular division.
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The government want to set new regulation that reduce carbon emission
Answer:
"It will reduce greenhouse gases in the atmosphere" is the one reason among the following choices given in the question that this act will help with the sustainability of our environment. The correct option among all the options that are given in the question is the first option. I hope that the answer has helped you.
Explanation:
Why is graphing important to
scientists? (Give at least 2 reasons)
Answer:
They can help visualize the data.
You can actually see what all of the numbers in a data table mean.
Explanation:
Its hard to look at a set of data and understand what it means without organizing it in a way which is easy to understand and refer back to.
If there has been a drought for 6 month's what is the likely response of a seed?
Once the neuron is excited, how
does the message pass down the
axon to the knob?
A. Through potassium
B. Through the glia cells
C. The sodium pump
GUYS PLS HELP
Answer: C. The sodium pump
Explanation: Acellus
Which of the following is an example of how enzymes are catalyst?
A. Enzymes can alter the free energy change (∆G) for a chemical reaction.
B. Enzymes increase the free energy of the reactants to make the reaction go faster.
C. Enzymes provide the activation energy for the reactions they facilitate.
D. Enzymes lower the activation energy so that reactants absorb enough energy to reach transition state.
Answer:
d
Explanation:
Describe the effect of increasing the number of tablets dissolved in water on the number of new leaves in four weeks. 25 points
Describe hydrogen bonding
please help me! :)
Answer: hydrogen bonding is the association between a hydrogen atom which is somewhat positive because it is bonded to a small electronegative atom and an atom of O, N or F on another molecule
Explanation:
The diagram shows the formation of a fault-block mountain. Arrows
outside of the block show the directions of force. Arrows inside the blocks
show the directions of movement. The blocks K and L move along a line
marked J. What does the line marked by the letter J represent?
A.)a river
B.)a rock layer
C.)a fault line
D.)the focus
Hurry plzzzz >_<
How are plant and animal cells similar?
Answer:
Plant and animal cells are similar because both are eukaryotic. Every plant and animal cell has a cell membrane and cytoplasm. In addition, nearly all plant and animal cells have a nucleus.
Explanation:
I got it right
In the United States, alcoholic beverages that are sold in stores display a government warning stating that pregnant women should not drink alcoholic beverages. This is because
it prevents cleavage division from occurring, so a zygote cannot become a blastocyst.
if a woman drinks alcohol while she is pregnant, she may not be able to ovulate again after childbirth.
studies have proven that alcohol consumption causes long-lasting disorders in the fetus.
the science of chemistry has shown that alcohol is a reactive substance that may interfere with the mother’s food digestion.
Answer:
It should be "studies have proven that alcohol consumption causes long-lasting disorders in the fetus."
Explanation:
because everything the mother eats enters the child's body alchoholcan cause problems as if th e child were aready born and drinking.
Answer:
c
Explanation:
I WILL GIVE BRAINLIEST IF U HELP ME AND I MEAN ACTUALLY HELP
Each year, the United States' federal costs exceed the anticipated national budget. In fact the last time that the United States government was able to end a fiscal year without accruing more debt was in 1960. This means that due to excessive spending and compounding interest accrued, the United States' national debt has escalated astronomically over the past several decades. The table shown below lists the recorded U.S. national debt amounts, written in standard form, for each decade, from 1960 to the year 2010.
Year U.S. national debt (in U.S. dollars)
1960 $286,330,760,848.37
1970 $370,918,706,949.93
1980 $907,701,000,000.00
1990 $3,233,313,451,777.25
2000 $5,674,178,209,886.86
2010 $13,561,623,030,891.79
For each decade, convert the U.S. national debt amount to a number in scientific notation, rounded to the nearest hundred millions dollars. Enter in numerical answers only.
Year U.S. national debt (in U.S. dollars)
written in standard form U.S. national debt (in U.S. dollars)
written in scientific notation
1960 $286,330,760,848.37 $2.863 ∙ 10
1970 $370,918,706,949.93 $3.709 ∙ 10
1980 $907,701,000,000.00 $9.077 ∙ 10
1990 $3,233,313,451,777.25 $3.2333 ∙ 10
2000 $5,674,178,209,886.86 $5.6742 ∙ 10
2010 $13,561,623,030,891.79 $1.35616 ∙ 10
Answer:
Given the US National Debt,
1960 $286,330,760,848.37
1970 $370,918,706,949.93
1980 $907,701,000,000.00
1990 $3,233,313,451,777.25
2000 $5,674,178,209,886.86
2010 $13,561,623,030,891.79
Then, rounding off these numbers to nearest hundred million,
1960 $286,000,000,000.00
1970 $370,900,000,000.00
1980 $907,700,000,000.00
1990 $3,233,300,000,000.00
2000 $5,674,200,000,000.00
2010 $13,561,600,000,000.00
While representing a number in scientific notation, it is written as a number between 1 and 10 and then multiplied by a power of 10.
The debt amount becomes,
1960 $2.86×10¹¹
1970 $3.709×10¹¹
1980 $9.077×10¹¹
1990 $3.2333×10¹²
2000 $5.6742×10¹²
2010 $1.35616×10¹³
Explanation:
Given the US National Debt,
1960 $286,330,760,848.37
1970 $370,918,706,949.93
1980 $907,701,000,000.00
1990 $3,233,313,451,777.25
2000 $5,674,178,209,886.86
2010 $13,561,623,030,891.79
Then, rounding off these numbers to nearest hundred million,
1960 $286,000,000,000.00
1970 $370,900,000,000.00
1980 $907,700,000,000.00
1990 $3,233,300,000,000.00
2000 $5,674,200,000,000.00
2010 $13,561,600,000,000.00
While representing a number in scientific notation, it is written as a number between 1 and 10 and then multiplied by a power of 10.
The debt amount becomes,
1960 $2.86×10¹¹
1970 $3.709×10¹¹
1980 $9.077×10¹¹
1990 $3.2333×10¹²
2000 $5.6742×10¹²
2010 $1.35616×10¹³
Explanation:
An important similarity between photosynthesis and cellular respiration is that both processes
use and store O2.
use and make ATP.
store energy in glucose.
release energy from glucose.
Answer:
b use and make ATP.
Explanation:
big brain
good luck
Answer:
B
Explanation:
E2020