10. Use the theory of evolution to explain the observation that there are no tuskless males in the
park. WHY do males retain their tusks, when 50% of females lost them.
Type Here

Answers

Answer 1
Tusks are essentially overgrown teeth. Yet they’re typically used for most task of daily living; digging for water or vital minerals in the ground, debating trees to secure fibrous food, and helping males compete for females
Answer 2

Based on the theory of evolution, poaching of males for their tusk exacted a pressure on the elephant population which made more tuskless males to survive more than males with tucks as a result of natural selection.

Also, tucklessness as a trait is sex-linked, this explains why 50% of females lost their tusks why the males retain theirs.

Recall:

The theory of evolution describes the change that occur overtime through natural selection, whereby, offspring that are "fitter" are reproduced.Those that lack the fitness to survive produce fewer offspring than will survive.

Male elephants are known to have tusks. However, poaching of elephants with tusks have exacted the pressure of natural selection on the population of elephants in the park.

The few tuskless males that are left surviving therefore produce more offspring as they pass the gene of tucklessness to their offspring. Over a long time, more tuckless males emerge while males with tusks will become almost non-existence as a result of natural selection.

A study showed that most females elephants have no incisors which suggests that the trait for tucklessness is sex-linked. This explains why 50% of the females lost their tusks and males retain theirs.

In summary, based on the theory of evolution, poaching of males for their tusk exacted a pressure on the elephant population which made more tuskless males to survive more than males with tucks as a result of natural selection.

Also, tucklessness as a trait is sex-linked, this explains why 50% of females lost their tusks why the males retain theirs.

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Related Questions

Which of the following is not a way in which carbon gases are introduced into the atmosphere? a forest fires b. respiration C. photosynthesis d. burning of fossil fuels Please select the best answer from the choices provided O A ОВ oc​

Answers

Answer:

C. Photosynthesis

Answer:

its C

Explanation:

Which describes bedrock?
o consists of solid rock
o lies directly above the soil layer
o does not contain weathered rock
o forms from decomposed material

Answers

Answer:

consists of solid rock

Explanation:

bedrock contains only solid rock unless you are talking about a different type of bedrock this bed is called saprolite. saprolite contains severly weathered rock and lies above the solid layer of bedrock

Answer:

a

Explanation:

Which step in the digestive process represents a chemical change in food?

Answers

Answer:

digestion

Explanation:

The passive movement of particles from a region of higher concentration to a
region of lower concentration is known as...
A. Diffusion
B. Active Transport
C. Osmosis
D. Selective Permeability

Answers

Answer:

Answer is A. Diffusion

Explanation:

Because diffusion is a passive process in which a substance moves from a higher concentration to a lower concentration until the concentration becomes equal

The passive movement of particles from a region of higher concentration to a region of lower concentration is known as diffusion. Thus, the correct option is A.

What is Diffusion?

Diffusion may be defined as the passive movement of particles from a region of higher concentration to a region of lower concentration.

Active transport requires energy for the movement of particles. Selective permeability may be defined as the ability to differentiate the movements of different types of particles in and out of the membrane.

Therefore, the correct option for this question is A.

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Why do planets close to the sun have thin atmospheres and the planets far away from the sun have thick atmospheres. Use what you know about the nebular theory.

Answers

Answer:

There are two primary factors: size and distance from the Sun. Gravity helps planets and moons to hold on to their atmospheres, so small planets/moons such as Mars and the Moon have thin atmospheres. The reason why the outer planets are larger is probably down to two major factors. The first is simply the amount of material available which may be accreted to a planet. Clearly, the further away from the Sun, the longer the orbit (twice as far means an orbit twice the physical length).

Explanation:

Which of these is a condition where the endometrial lining that is normally supposed to only be inside the uterus, ends up outside the uterus (for instance, in the pelvic cavity) and causes extreme pain during menstruation? This condition affects up to 1 in 4 women.

Answers

Answer:

Endometriosis is called the pathology

Explanation:

Endometriosis is a pathology where fibroblasts or connective tissue cells proliferate outside the fallopian tubes in the abdomen, close to the intestine, and adjacent to the ovaries, by proliferating and reducing the space between the organs, the pressure of the terminals increases nervous and during menstruation it hurts.

They are benign proliferative cell foci.

HELP HELP HELP ASAP ILL GIVE 100 points

Answers

Answer:

What's the question you need help with?? I will try my best to help. I'm not taking free points btw. I'm just wondering on what your question is

release,connect and contract

whats the definition of photosynthesis?

Answers

Answer:

the process by which green plants and some other organisms use sunlight to synthesize get nutrients from carbon dioxide and water.

Explanation:

hopes this helped :)

Photosynthesis is defined as the processes that bring about the manufacturing of food by green plants.

Food is complex energy-rich organic matter which living organisms feed on to obtain nutrients, substances necessary for life. Green plants which are known as autotrophs has the ability to produce their own food through the process of photosynthesis.

The main features of photosynthesis include:

It takes place in the chloroplasts of plants, in the presence of sunlight.The energy needed for the process is gotten from sunlight which is absorbed by chlorophyll found in the chloroplasts.The raw materials used are low-energy containing inorganic compounds, example: carbon dioxide and water.The final products are high-energy containing sugars. oxygen is given off as a waste product.

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describe how and where carbondioxide enters the leafe?​

Answers

Answer:Carbon dioxide cannot pass through the protective waxy layer covering the leaf (cuticle), but it can enter the leaf through an opening (the stoma; plural = stomata; Greek for hole) flanked by two guard cells. Likewise, oxygen produced during photosynthesis can only pass out of the leaf through the opened stomata.

Explanation:

When sleeping overnight, a person doesn't eat for many hours and blood sugar decreases. How does negative feedback work to affect this physiological value in a healthy person?

A. Insulin is released to cause cells to release glucose into the bloodstream.
B. Glucagon is released to cause cells to absorb glucose from the bloodstream.
C. Glucagon is released to cause cells to release glucose into the bloodstream.
D. Insulin is released to cause cells to absorb glucose from the bloodstream.

Answers

Answer:

It is c

Explanation:

C is the answer ur looking for my guy

Laws have been enacted to regulate cigarette labeling and advertising. What is this an example of?
an impact of changing scientific knowledge on society
the interrelationship of science and technology
an influence of society on scientific progress
the changing nature of scientific knowledge

Answers

Answer: B

Explanation: Society is basically a community of people and the way they live.  The study on smoking is definitely science.  So it would be b.

Answer:

A

Explanation:

I'm pretty sure it's A :)

all of the following statements support the cell theory except-​

Answers

Answer:

L

Explanation:

J I’m pretty sure their is bacteria way smaller than a cell

Name a structural difference between triglycerides and phospholipids

Answers

Answer:

Phosphate group is the structural difference between triglycerides and phospholipids. A triglyceride contains three fatty acids attached to the glycerol backbone whereas a phospholipid has two fatty acids and a phosphate group attached to the glycerol.

Explanation:

define the following term ​

Answers

Answer:

What is the following term?

Explanation:

What you are asking is vague, you should add a term to define.

What is the relationship between snails and Elodia

Answers

Answer:

The relationship between snails and elodea is symbiotic in that the snail eats algae and produces carbon dioxide. The elodea takes in the carbon dioxide and, through photosynthesis, creates oxygen, which the snail and every living thing in the tank uses to breathe.

Explanation:

hope it helps you!!

n.kjbhykvgtcf vbhijbhjjbhiygihkjbm

A diagram that is used to show the loss of energy as you go forward in a food chai
a.) food web
b.) energy pyramid
c.) concept map
d.) trophic levels

Answers

Answer:

tropical levels ........

Please help. This is due today :(

Label the following.. Word bank is below

Answers

label what..? where’s the word bank

1. What has to be added to a substance to cause a phase change?

Answers

Answer:

To cause a phase change, you either add heat energy to a substance to cause it to evaporate, melt, or sublimate, or you subtract heat energy, or take it away, to make the substance freeze or condense. Hope it helps!

Explanation:

Phase changes require either the addition of heat energy (melting, evaporation, and sublimation) or subtraction of heat energy (condensation and freezing). ... Changing the amount of heat energy usually causes a temperature change.

The number of waves passing the observer per second is:
- the wavelength
- the amplitude
-the frequency
- the period

Answers

Answer:

frequency

Explanation:

comment if im wrong

The number of waves passing the observer per second is the frequency. Hence, the correct option is C.

What is frequency?

Frequency refers to the number of waves that pass from a fixed point in unit time. It is a measure of the rate of repetition of a periodic phenomenon such as vibration or a wave.

It is measured in hertz (Hz), an international unit of measure where 1 hertz is equal to 1 cycle per second. The more cycles that occur per second, the higher the frequency of the system is.

For example-The human heart beats at a frequency of 68 beats per minute.

In general, frequency is a very important concept in many fields including physics, engineering, music and the natural sciences, and it is used to describe and analyze a wide range of periodic phenomenon.

Therefore, the correct option is C i.e., frequency.

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Consider the separate stages of an animal virus life cycle. Assemble a list of structures and processes that are unique to the virus and would make good drug targets for an antiviral agent. Explain your rationale for each choice.

Answers

Answer:

Explanation:

In order to make an antiviral agent, we need to find good drug targets, that is, to find structures and processes that are only present in the virus, so there is no harm on human cells when this antiviral agent is being applied.

In the virion of a naked virus, only nucleic acid and  protein are present forming the nucleocapsid. The nucleic acid and proteins of the capsid, specially, are found only in the virus and therefore make good drug targets. For example, we can express antibodies to recognize the proteins of the capsid and guide the immune system to destroy them.

Although virus particles are  metabolically inert, one or more key enzymes are present  within the virion in some viruses, for example, the reverse transcriptase. This enzyme is only found in viruses and if we find a way to inhibit the activity of this reverse transcriptase, like for example finding a competitor substrate, the virus will not be able to synthesize the DNA needed for its replication.

Regarding processes in the virus life cycle, they all have similar steps: first the attachment of the viral particle onto the cell, then the penetration of the virus, then the synthesis of early and intermediate enzymes using the host cell machinery, and finally the assembly of these viral components and lysis of the host cell to release new viral particles.

The attachment of a virion to a host cell is a highly  specific process. Recognition proteins on the virus recognize  specific receptors on the host cell. Substances that compete with the virion for these specific receptors can be used. If there is no attachment, there is no infection.

Humans deplete the most resources when

Answers

Answer:

Resource depletion is the consumption of a resource faster than it can be replenished. Natural resources are commonly divided between renewable resources and non-renewable resources (see also mineral resource classification). Use of either of these forms of resources beyond their rate of replacement is considered to be resource depletion. The value of a resource is a direct result of its availability in nature and the cost of extracting the resource, the more a resource is depleted the more the value of the resource increases. There are several types of resource depletion, the most known being: Aquifer depletion, deforestation, mining for fossil fuels and minerals, pollution or contamination of resources, slash-and-burn agricultural practices, Soil erosion, and overconsumption, excessive or unnecessary use of resources.

Resource depletion is most commonly used in reference to farming, fishing, mining, water usage, and consumption of fossil fuels. Depletion of wildlife populations is called defaunation.

Explanation:

If correctly answered I will give out Brainliest.

Answers

Answer: D

Explanation: A = Thrust

B=Lift

C=Drag

D=Gravity

2
If an organism has 15 chromosomes in a single sperm cell, how many
chromosomes would reside in its somatic cells?
O 15
O 30
0 7.5
45

Answers

Answer:

i just think but not sure

the answer is 30.....

I think but not sure

clarify and tell whether I am correct or not

How do you know that vinegar was diffused into the cubes

Answers

The higher the surface area smaller volume the faster the rate of diffusion it would eventually reach equilibrium you should have seen the vinegar diffused all the way to the center of the smallest cube

Describe the energy-releasing reaction shown in figure 1

Answers

idkeubeekenebekeenne

The energy-releasing reaction shown is the reaction of phosphorylation of fructose-6-phosphate to fructose-1, 6-bisphosphate.

Phosphorylation simply means the biochemical process that has to do with the addition of phosphate to an organic compound.

In this case, there's a reaction with fructose-6-phosphate to fructose-1, 6-bisphosphate.

Also, the ATP molecules have three high-energy phosphate groups which are vital for the transfer of one of its phosphate groups to fructose-6-phosphate and also provide energy to carry out the reaction.

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STATION 4 Cell Theory Select the answer choice with increasing levels of organization. R. Tissue, Organ System, Organ, Population S. Cell. Tissue. Organelles, Organ System T. Cell. Tissue, Organ, Organ System V. Organ System, Organ, Cell, Tissue​

Answers

Answer:

The answer is S.

A cell has chloroplasts, numerous ribosomes, an endoplasmic reticulum, and a cell wall. What type of cell is this?

Answers

Answer:

The cell with chloroplasts, abundant ribosomes, plus an endoplasmic reticulum, and a cell wall is of the plant cell type.

Explanation:

Plant cells are eukaryotic cells found in all plants, with specific characteristics given their ability to be autotrophic and use solar energy to synthesize their nutrients. The presence of many ribosomes and a developed endoplasmic reticulum is due to their high capacity for plant protein synthesis.

One characteristic that differentiates plant and animal cells is the presence of a cell wall, which surrounds the cell membrane, and chloroplasts. Chloroplasts are responsible for making the process of photosynthesis possible.

I NEED SOMEONES HELP ON THIS QUESTION THE PICTURE IS ABOVE

Answers

Answer:

chemical that's the answer!

Answer:

c) Chemical

Explanation:

The poison dart frog triggers the production of a chemically dangerous alkaline Batrachotoxin, when it feels a threat to itself or its habitat.

The skunk similarly sprays chemical containing aerosols, that have an offensive odour to defend itself.

Plz help me with this question!!!!!!

Answers

ANSWER:_____________________________________

Solution : It is a mixture of solvent (Major component mostly liquid) and solute (Minor component).

It is asking from a solution where water and solute are moving whether outise or inside.

_____________________________________As Per Hint Given:

Solute ; Moves from higher concentration to the lower concentration by the process of diffusion.Solvent(Water) ; Moves from low solute area to the high solute area by the process of osmosis._____________________________________ROW 1 :

26: Inside the cell (because inside the cell there is 5% solute(salt) whereas outside the cell it is 10%)

27: Outside the cell (outside the cell there is more concentration of salt so water moves out)

ROW 2:

In Row 2 there is equal amount of salt outside and inside the cell so Solute and Solvent do not move because the solution is ISOTONIC

28: NO MOVEMENT

29: NO MOVEMENT

ROW 3:  

30: Glucose moves outside the cell

31: Water moves inside the cell (because glucose is more inside the cell)

ROW 4

32: Outside the cell (same reasons as above)

33: Inside the cell

ROW 5

34: NO MOVEMENT

35: NO MOVEMENT

ROW 6

36: Outside the cell

37: Inside the cell

ROW 7

38: Inside the cell

39: Outside the cell

ROW 8

40: Outside the cell

41: Inside the cell

ROW 9

42: Inside the cell

43: Outside the cell

_____________________________________

Planet X is a terrestrial planet in our solar system. It has 21% oxygen in its atmosphere. Humans can walk on this planet without the aid of a space suit. Based on the description, planet X is____ .
a.Earth
b.Mars.
c.Mercury
d.Venus

Answers

Answer: the answer is actually earth

Explanation: A

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