Answer:
N (t) = 788 individuals
Explanation:
There are some parameters to consider when analyzing the evolution of a population in time regarding its size. Some of them are the generational time -T-, the intrinsic growth rate per capita -r₀-, the net reproductive rate -R₀-, the reproductive value -V₀-. among others.
To obtain the net reproductive rate -R₀- of a population, we must relate the contribution of individuals of each age to the next generation, with the possibility that those individuals reach that age.
It can also be considered the media of female offspring that each female can produce throughout its whole life.
You can also think about it as a quantity by which the population abundance will increase, decrease, or remain the same in the followings generations. And this concept is related to what is stated in the problem.
If R₀>1 ⇒ the population size increasesIf R₀<1 ⇒ the population size decreases If R₀=1 ⇒ the population is in equilibrium. Its size remains the same.According to the given information, we can use different formulas to calculate R₀
R₀ = N(t) / N(0) ------> (N0 being the population size at time zero, and Nt in a
certain generation)
R₀ = sum (lx * mx)---> (Lx being the survival rate and mx the fertility rate)
-------------------------------------------------------------------------------------------------------
To answer this question, instead of calculating the R₀ value, we need to calculate Nt, which is the population size at t generation. In this example, is the following generation, so t=1.
We already know that N₀ = 788 individuals and that R₀=1.
By clearing the equation R₀ = N(t) / N(0), we can get the Nt value.
N (t) = N₀ x R₀
N(t) = 788 x 1
N(t) = 788 individuals
The population size at time 0 and time 1 is the same. This is because the R₀ value = 1, meaning that the population is in equilibrium. It does not increase either decrease. Probably there are as many deaths as births.
Return to the MyPlate food plan calculator, and make an eating plan for someone whose weight and age are different from yours. You can change the person’s age, gender, and activity level. How does this checklist differ from yours? Why do you think the person’s energy needs are different?
Answer:
Increase consumption of food to increase weight.
Explanation:
There is my friend who is very weak and thin about 52 kg weight and he is one year older than me. I wanted to increase his weight up to 70 kg so I will recommend him to eat more nutritive food having large amount of proteins because proteins made muscles in the body. I suggest him to eat more food and exercise regularly to have a muscular body. The checklist is different from my checklist due to different goals. I wanted to lower my weight and increases the weight of my friend. My friend's energy needs are different from mine due to different goals to achieve.
Answer:
Males generally need more calories than females. Because men have an overall larger body in both height and weight, they need to consume more calories. For a male who is 20 years old, 5 feet and 10 inches, weighs 198 pounds, and has moderate physical activity, he should consume about 2,800 calories per day. That is about 1,000 calories more than my average caloric intake. To consume that many calories, he should eat 2 ½ cups of fruit, 3 ½ cups of vegetables, 7 ounces of protein, 3 cups of dairy, and 10 ounces of grains per day.
Explanation:
What types of molecules make up the cell membrane?
Answer:
The double layers of cell membranes are made up of PHOSPHOLIPIDS.
The cell membrane, also called plasma membrane is made up of double layers of phospholipids. The Phospholipid is a type of lipid, which is made up of two parts, an hydrophillic head, and a hydrophobic tail. The hydrophillic head is made up of phosphate and glyerol while the hydrophobic tail is made up of fatty acids. The double layer of phospholipids serves as a barrier that allows only certain substances to enter into the cells.
Explanatiion:
I searched it up : p
During prophase in both mitosis and meiosis, chromosomes condense. At this time, identical copies of chromosomes are connected. What is each copy of a chromosome called? ______________________
Answer:
Well, DNA's arranged in chromosomes, as you know, so what happens is, as a chromosome replicates, or makes a copy of itself, it's arranged as two chromosomes next to each other, called chromatids.
Explanation:
Well, DNA's arranged in chromosomes, as you know, so what happens is, as a chromosome replicates, or makes a copy of itself, it's arranged as two chromosomes next to each other, called chromatids.
Answer: sister chromatids
Explanation: since each of the parent's cells chromosomes were replicated during interphase, there are two copies of each chromosome in the cell during prophase
Which of these is a long-term human health issue likely caused by air pollution?
A. Bioremediation
B. Damaged hearing
C. Dementia
D. Heart disease
Answer:
D
Explanation:
Heart disease is a long-term human health issue that is likely caused by air pollution. Thus, the correct option is D.
What is Air pollution?Air pollution may be defined as any unwanted or contaminated impurities present in the air of living surrounding that causes harmful health effects to organisms.
Dementia is caused by the loss of nerve cells and their significant connections in the brain and is not likely the source of air pollution.
Majorly heart diseases are caused by the inhalation of contaminated air that forms a layer of harmful substances in the heart and lungs. Some of them include lung cancer, cardiovascular death, asthma, etc.
Therefore, the correct option for this question is D.
To learn more about Heart diseases, refer to the link:
https://brainly.com/question/13135199
#SPJ2
What structure will form during synapsis in Prophase I if there is a partial chromosome deletion or duplication?
a. inversion loop.
b. tetravalent complex.
c. solenoid.
d. nucleosome.
e. unpaired loop.
Answer:
The correct answer is option e, that is, unpaired loop.
Explanation:
For base pairing to take place, the duplicated or the deleted region will not possess any kind of complementary region. Thus, it produces an unpaired loop. The formation of the inversion loop takes place at the time of paracentric and pericentric inversion. A high-level packaging composition produced by chromatin is known as a solenoid. A bead on string structure produced by enveloping DNA around the core of histone proteins is termed a nucleosome.
Plzplz ppz help with this riddle! Links will be reported. Thank you!
Answer: Hello Luvv
Green st patrick's day.
Explanation:
Hope this helps
Mark me brainset please.
Anna ♥
Answer: Hello!....
Patricks Day
Explanation:
Mark me brainest please. Hope I helped! Hope you make an 100%
-Anna♥
All of these are true about carbon fiber parts EXCEPT that: damage may not be visible from the front side of the part. repairs may not be allowed by some vehicle makers. they are a combination of fiberglass and carbon fibers. the carbon fiber cloth may be visible on some panels.
Answer:
they are a combination of fiberglass and carbon fibers.
Explanation:
Carbon fiber is made from organic polymers, which consist of long strings of molecules held together by carbon atoms. About 90% carbon fibers are made up of polyacrylonitrile (PAN) process whereas very small amount about 10% are manufactured from rayon or the petroleum pitch process. carbon fibers are stronger than fiberglass and very expensive due to usage in many industries.
Be sure to answer all parts.
Find the pH and the volume (mL) of 0.407 M HNO3 needed to reach the equivalence point in the titration of 2.65 L of 0.0750 M pyridine (C5H5N, Kb = 1.7 × 10−9).
Volume = mL HNO3
pH =
Answer:
pH = 3.215
Explanation:
From the given information;
Using the equation for the dilution of a stock solution:
Since moles of C5H5N = moles of HNO3
Then:
[tex]M_{C_5H_5N}\times V_{C_5H_5N}= M_{HNO_3}\times V_{HNO_3}[/tex]
[tex]0.0750 M \times 2.65 L = 0.407 M \times V_{HNO_3}[/tex]
[tex]V_{HNO_3}= \dfrac{0.0750 M \times 2.65 L}{0.407 M}[/tex]
[tex]V_{HNO_3}=488.33 \ mL[/tex]
The reaction between C5H5NH and H2O is as follows:
[tex]C_5H_5N^+H + H_2O[/tex] ⇄ [tex]C_5H_5N + H_3O^+[/tex]
[tex]Molarity \ of \ C_5H_5N^+H = \dfrac{moles}{addition \ of\ the\ total\ volume}[/tex]
[tex]Molarity \ of \ C_5H_5N^+H = \dfrac{0.0750 \ M \times 2.65 \ L}{2.65 \ L + 0.48833 \ L}[/tex]
[tex]Molarity \ of \ C_5H_5N^+H = \dfrac{0.19875 \ ML}{3.13833 L }[/tex]
[tex]= \ 0.06333\ M[/tex]
Now, the next step is to draw out the I.C.E table.
[tex]C_5H_5N^+H + H_2O[/tex] ⇄ [tex]C_5H_5N + H_3O^+[/tex]
I 0.06333 0 0
C - x x x
E 0.06333 -x x x
[tex]K_a = \dfrac{10^{-14}}{1.7 \times 10^{-19}} \\ \\ K_a = 5.8824 \times 10^{-6}[/tex]
[tex]K_a = \dfrac{[C_5H_5N][H_3O^+] }{[C_5H_5N^+H] } \\ \\ 5.8824 \times 10^{-6} = \dfrac{x^2}{0.06333 - x}[/tex]
Assuming x < 0.06333
[tex]x^2 = 5.8824 \times 10^{-6} \times 0.06333[/tex]
Then
[tex]x^2 = 3.72532392 \times 10^{-7} \\ \\ x= \sqrt{3.72532392 \times 10^{-7}} \\ \\ x = 6.1035 \times 10^{-4} \ M[/tex]
[tex][H_3O^+] = x = 6.1035 \times 10^{-4} \ M \\ \\ pH = -log (6.1035 \times 10^{-4}) \\ \\ \mathbf{\\ pH = 3.215}[/tex]
The pH for HNO3 needed to reach the equivalence point in the titration of 2.65 L of 0.0750 M pyridine (C5H5N, Kb = 1.7 × 10−9) is
HNO3 + C5H5N→CSH5NH + + NO3
Moles of C5H5N = volume x concentration
=2.65 x 0.0750
=0.1987 mol
Moles of HNO3 needed = moles of C5H5N = 0.19875 mol Volume of HNO3 eeded = moles / con
=0.19875/0.54
=0.363L
=363 mL
At the equivalence point, most effective C5H5NH + a NO3-are Moles of C5H5NH+ = moles of C5H5N = 0.19875 mol
Total extent of answer n = 2.65 + 0.363 =3.013 L
Initial concentration [ C5H5NH + ] o = moles/ volume =0.19875/3.013 =0.06596 M
Kb of C5H5N = 1.7 x 10 ^ 9
By fixing the equation,
H + = 6.199 * 10 ^ 4 M
pH=-log[H+]
=3.207
=3.21 pH
What is pH ?The pH is the degree of ways acidic or simple a substance is. In humans, pH stability performs a position in preserving the frame functioning optimally. The best pH of the frame is barely alkaline, which helps sure biochemical reactions like oxygenating the blood.
Thus it is clear above.
To learn more aboyt the titration refer to link :
https://brainly.com/question/186765
What is an example of a problem that a chemical engineer solves.
Answer:
Well, it would be easier if I had choices, but here's what I found:
"Chemical engineers also develop solutions to environmental problems, such as pollution control and remediation. And yes, they process chemicals, which are used to make or improve just about everything you see around you.""Another source mentioned that they use chemistry to solve everyday problems. They also help make [them] as environmentally safe as possible, and eliminate as much waste as they can."Hope this helps! :)
Which is not a fossil fuel
Group of answer choices
coal
nuclear
natural gas
Petroleum
Natural gas is not a fossil fuel
hope it is helpful to you
Which of the following has the highest sodium content?
A) Fresh fruits and vegetables
B) Lunchmeats, processed cheeses and canned soup
C) Mild, roast beef sandwich
D) Tossed salad with vinegar and oil dressing
Answer:
b
Explanation:
I think that's right since canned food has a lot of sodium to help preserve
what is the role of diaphragm in inhalation and exhalation
Cell Consist of chloroplast ?
6. Examine the specimen in the photograph below. a. Explain the origin of the two circular openings on this specimen. ____________________________________________________________ b. Tell what sort of organism most likely made these circular openings, and why they are located in this particular place on the specimen. ____________________________________________________________ ____________________________________________________________ c. What might have caused the light-colored circular patches near the top edge and on the left side of this specimen
Which is not a form of precipitation?
Please help ASAP
A Snow
B Fog
C Sleet
D Hail
Answer:
B: Fog
Explanation:
The four types of precipitation are snow, rain, sleet, and hail. Fog is technically a cloud.
How does the washing of hands help prevent a societal problem
Answer:
It reduces the spread of disease.
Explanation:
np give me brainliest and thank me plz
What makes an illness reportable? Give an example of a mandatory reportable disease and a reason
why it might have made the reportable list. HELP PLEASE
Answer:
Explanation
Reportable diseases are divided into several groups: Mandatory written reporting: A report of the disease must be made in writing. Examples are gonorrhea and salmonellosis. Mandatory reporting by telephone: The provider must make a report by phone.PLEASE HELP ME ON BOTH QUESTIONS ASAP!!!!! GIVING 13 POINTS AWAY!!!!!!
Answer:
the awnser for the first question i think is D because a funnel is used to clean water of contaminants.
Explanation:
the awnser for the second question is A.
Describe how and why this happens (try to do an easy description)
A comet in space continues to move without slowing down or slowing up.
Answer:
because there is no force acting in the comet making it able to go on forever without change in its path or speed
explanation
newton's first law
PLS HELP
Identify the Golgi Apparatus
Answer:
D
Explanation:
It is the golgi apparatus
(I put a labeled diagram of an animal cell)
Do skeletal muscles work alone?
According to the EPA, what are three benefits to geothermal heat pumps?
Answer:
Environmentally Friendly. Geothermal energy is more environmentally friendly than conventional fuel sources such as coal and other fossil fuels.Renewable.Reliable. ..
Explanation:
At high temperatures enzyme activity declines
because of:
Answer:
protein get denatured
Explanation:
at high temperatures enzyme activities in our body decline due To the proteins getting denatured
Biology i will give brainliest
10 J
As you move up each trophic level 90% of the energy from the previous level is lost. That is, only 10% of the energy from the level below is recieved.
Plants - 1,000 J
Primary consumers - 100 J
Secondary Consumer - 10 J
why do the body need specialized cells?
Answer: Hello, There! your Answer is Below!!
specialized cells allow for different types of tissues to exist in our organs, so that the organs can perform different functions in our organ systems.
Explanation:
Cell specialization allows new cells to develop into a range of different tissues, all of which work together to make living organisms function as a whole.
Hope this helps!!!
Have a great day!!!
The number of different species living in a defined area is known as which of the following?
• bioconcentration
• habitat
• preserve
• biodiversity
Answer:biodiversity
Answer:
Biodiversity
Explanation:
"Biodiversity is the biological variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic, species, and ecosystem level. Terrestrial biodiversity is usually greater near the equator, which is the result of the warm climate and high primary productivity. "
- wiki
Plants contains many cells (multi-cellular) and are called
Answer organism
Explanation:
Answer:
Eukaryotic cells.
Explanation:
Plant and animal cells are eukaryotic, meaning that they have nuclei. Eukaryotic cells are found in plants, animals, fungi, and protists.
All multi-cellular organisms are Eukaryotic.
I hope this helps!
What is the greatest source of carbon that enters the ocean
from the atmosphere?
a
carbon monoxide
w
b carbon dioxide
C
bicarbonate ions
Answer:
c.)carbon dioxide
Explanation:
Most carbon enters the ocean when carbon dioxide in the atmosphere dissolves in ocean water. When carbon dioxide dissolves in water (H2O), it forms an acid called carbonic acid (H2CO3). The reaction is given by the equation: CO2 + H2O ↔ H2CO3.
For hair color, having dark/brunette hair is dominant to having light or blond hair. Olivia Keller is blond but her mother, Mrs. Keller is brunette. Mr. Keller is also brunette. Use a Punnett Square to show whether Olivia could be the Kellers’ daughter.
Answer:
Olivia could be the Keller's daughter if both parents are heterozygous for their brunette hair coloration. Please find the punnet square in the attachment section.
Explanation:
According to this question that involves a gene coding for hair color in humans, the allele for dark/brunette hair (B) is dominant to the allele for light/blond hair (b). This means that a heterozygous individual (Bb) will have a brunette hair coloration.
Olivia Keller is said to have blond hair but her mother, Mrs. Keller and father, Mr. Keller both have brunette hair coloration. Since Olivia is blond (recessive), she must have a genotype "bb". However, this is possible if both of her parents i.e. Mr and Mrs. Keller have a heterozygous genotype (Bb).
From the punnet square of the cross, Bb × Bb, in the attachment section, it can be observed that brunette color (BB, Bb, Bb) and blond color (bb) were produced in the offsprings in the ratio 3:1. This means that it is very likely that Olivia could be the Keller's daughter.
Why are phytoplankton essential to aquatic life zones?
=Answer:Phytoplankton are essential to aquatic life zones because: they provide the basis of food chains. Log in for more information. Added 5/22/2016 9:52:12 AM This answer has been confirmed as correct and helpful.
Explanation: