Answer:
A. The population will be 3,845 after a year. The bison will not pose a problem until the following year, and no conservation action will need to take place.
Explanation:
The exposed example refers to a population that exhibits a logistic growth model, Where the principal limiting factor is food availability
N is the total size of the populationNt the population size after a T timeK the carrying capacityr the population growth rate per capitaWhen N < K the population has not reached the maximum size that can be supported by the environment. It can increase in size.
When N = K the population has reached the maximum size that can be supported by the environment. It can not grow anymore. The population reached a maximum point delimited by available resources, such as food
When N > K the population has supered the maximum size that can be supported by the environment. It must decrease in size. because there are not enough resources.
To calculate the population size after one year, we need to use the following equation.
N t+1= Nt+rN(1-N/K)
Available data:
K = 4500
N = 3652
r = 0.28
Nm= 4000
N/K = 3652/4500 = 0.8115
r.N = 0.28 x 3652 = 1022.56
N t+1= Nt+rN(1-N/K)
N t+1= 3652+1022.56(1-0.8115)
N t+1= 3652+1022.56(0.1885)
N t+1= 3652+192.753
N t+1= 3844.75
rounding up to 3845
in an appropriate design experiment, a scientist is able to test the effect of?
Answer:
This question is incomplete as it lacks options, the options are:
A) a single variable
B) multiple variables
C) the hypothesis
D) scientific observations
The answer is A
Explanation:
An experiment is conducted to solve a particular problem or find answers to a given scientific question. In an experiment, which usually consists of variables, only A SINGLE VARIABLE is tested at once.
This means that the effect of a variable called INDEPENDENT VARIABLE is tested at a time. The independent variable is the variable that is changed or manipulated in an experiment. This means that only a SINGLE VARIABLE can be changed at at time in an an appropriate design experiment.
Calculate the molarity of 0.75 L of a solution containing 0.83 g of dissolved KCI. A 0.015 M B 0.75 M C 1.1 M D 6.2
Answer:
A 0.015M
Explanation:
Molarity, which refers to the molar concentration of a solution, can be calculated using the formula:
Molarity (M) = mole (n) / volume (L)
Based on the information provided in this question, the solution contains 0.83 g of dissolved KCI.
We can calculate the number of moles of KCl in the solution by using the formula:
Mole = mass ÷ molar mass
Where atomic mass of; K = 39, Cl = 35.5
Molar Mass of KCl = 39 + 35.5
= 74.5g/mol.
Mole = 0.83g/74.5g/mol.
mole = 0.01114
Approximately, n = 0.011mol
Hence, molarity = 0.011mol/0.75L
Molarity = 0.0146
Molarity = 0.015M
Explain the relationship between the number of whales, the number of plankton (Biomass), and the amount of CO2 (Carbon Dioxide) in the atmosphere.
Answer:
Plankton are producers therefore they use the CO2 in the atmosphere and convert it to oxygen. Whales eat the plankton while sometimes using the oxygen that the plankton produces. In this situation, the whale is a primary consumer, or a heterotroph, as the plankton is the producer, or autotroph. Hope this helped :D
For something to be considered dead, it used to do what? Plz help
Answer:
C. Carry out all 5 of the life processes but no longer can
Explanation:
All living things are characterized by their ability to grow, reproduce, use energy by respiration, respond to stimuli, and easily adapt to their environments. When a living thing loses the ability to perform all of these basic functions, then it can be said to be non-living, or dead.
In addition, locomotion, excretion, metabolism, and nutrition were all exhibited when dead things were once alive.
Explain the Identification methods
How many of the 17 children have arthritis
Answer:
Why purple guy kill five of the and stuff the in animatronic suit?
the oxygen of air diffuses out from
Answer:
From higher concentration to lower.
Explanation:
The oxygen diffuses out from a region of higher concentration to the region of lower concentration because of diffusion. The air contain high amount of oxygen and human body has low oxygen level so the oxygen moves from the air to the lungs of the human body from there oxygen is loaded in the hemoglobin while on the other hand, carbondioxide is removed from the blood into the lungs which goes outside the body through breathing.
Which elements will have the same properties? A. Boron, Carbon, Nitrogen B.Gold, Silver, Titanium C. Beryllium, Magnesium, Calcium D. hydrogen, helium hassium
Answer:
b
Explanation:
it would be silver and gold hope helps
The function of glomerulus and Bowman's capsule of the nephron is to?
(A) reabsorb water into the blood
(B) eliminate ammonia from the body
(C) reabsorb salts and amino acids.
(D) filter the blood and capture the filtrate
Answer:
The function of glomerulus and Bowman's capsule of the nephron is to filter the blood and capture the filtrate (option D).
Explanation:
The set of glomerulus and Bowman's capsule is known as the renal corpuscle, and it is the structure responsible for the filtration of blood and its uptake as urine, which passes to the renal tubular system.
The renal glomerulus is the functional unit of the kidney, and is the structure responsible for filtering the blood that arrives through the renal capillary, to eliminate the waste products present in the blood.
Bowman's capsule surrounds the glomerulus and constitutes the second component of the filtration of blood plasma, in contact with the renal tubular system.
The other options are not correct because:
A. Reabsorb water into the blood occurs in the renal tubules.
B. eliminate ammonia from the body. Ammonia is one of the waste substances, converted to urea, that is eliminated by the kidney.
C. reabsorb salts and amino acids, occurs in the renal tubules.
The picture shows a model of a cell. What is the main function of the cell part labelled Y in the model
I need help due today please
Answer:
sedimentary
Explanation:
the esophagus connects the
Answer:
The esophagus connects the throat with the stomach, and is used to carry food and liquid from your mouth down to the Gastric.
~
When lizabeth remembers the marigolds, what emotions does she feel?
of the cell. *
15) DNA is located in the
O Vacuole
O Nucleus
O Cytoplasm
O Membrane
List three questions you would need to answer in order to support the claims being made about GroBIg
Answer:
Who is grobig
Explanation:
Answer: For production agriculture this generally means supplementing precipitation with irrigation. ... Increases in fuel prices means that pumping extra irrigation water increases irrigation expenses without ... GROBig Red Virtual Learning Series.
The _______________ has a negative charge. The ______________ is smaller than the other particles and can be found outside of the ___________________, which is another name for the center of the atom. In the center, there are ________________ and ___________________. The __________________ have no charge but weigh a lot compared to the ________________. The proton has a __________________ charge. In order to get the atomic mass, add the number of ________________ and _________________ together
Answer:
The electron has a negative charge. The electron is smaller than the other particles and can be found outside of the nucleus, which is another name for the center of the atom. In the center, there are protons and neutrons. The neutron have no charge but weigh a lot compared to the electron. The proton has a positive charge. In order to get the atomic mass, add the number of protons and neutrons together.
Explanation:
Answer:
electron
?
nucleus
protons
neutrons
neutrons
electrons
positive
protons
protons
neutrons
(because electrons weigh so little it dosnt make a difference)
A positive control is a sample in an experiment that produces a known result to compare with the test sample after the same treatment. It is used to control for unknown variables and confirms that all your reagents work.
In this case, the positive control is a cell line expressing wild-type CCR5.
Which of the following do you think will be a good positive control for this experiment?
a) T Cell Helper Line
b) Macrophage cell line without CD4
c) Unedited wild type macrophage
d) Edited macrophage
Explanation:
Human immunodeficiency virus type 1 (HIV-1) enters target cells by first binding to the primary receptor CD4 and then to a coreceptor, generally one of the chemokine receptors CCR5 and CXCR4 (4). CD4 binding induces structural changes in the envelope (Env) glycoprotein that form and expose the coreceptor binding site. There are two main interactions between Env and coreceptor (13, 14, 25, 50, 51): the base of the third variable loop (V3) engages the N terminus of the coreceptor, while the crown of the V3 loop that includes the highly conserved GPGR/Q arch motif binds to the extracellular loops of the coreceptor, with the second extracellular loop of the coreceptor being particularly important (16, 25, 35, 48, 62). Although some HIV-1 strains are able to use a variety of different G protein-coupled receptors to gain entry into CD4+ cell lines, the great majority of these viruses use CCR5 and/or CXCR4 as coreceptors to infect primary cells (3, 4, 10, 23, 47, 66). CCR3, GPR15, APJ, and FPRL-1 are among the most frequently used alternative coreceptors when overexpressed on cell lines (11, 26, 43, 47, 57). Rare cases of HIV-1 strains that are able to use FPRL-1 and GPR1, but not CCR5 or CXCR4, have been reported (57); however, their in vivo relevance remains unknown.
To characterize the biological processes underlying HIV/simian immunodeficiency virus (SIV) transmission, we recently developed an experimental strategy that permits the identification, enumeration, and molecular cloning of transmitted/founder (T/F) viruses (28, 53). This strategy, which employs single-genome amplification (SGA) and direct amplicon sequencing of HIV/SIV RNA or DNA from the plasma or infected cells, makes it possible to infer the nucleotide sequence of the viral strain(s) that initiated productive infection weeks earlier (1, 28, 29, 37, 53, 58, 67). An important prediction of this approach has been that inferred T/F viruses are fully functional and encode all proteins necessary to establish a new infection. Indeed, this prediction has been borne out in numerous studies, which have shown that T/F viral genes as well as full-length genomes are biologically active. Sets of T/F Envs have been shown to mediate efficient virus entry in single-round infection assays, and they invariably use CCR5 as a coreceptor (28, 34). Similarly, T/F infectious molecular clones (IMCs) of HIV-1, SIVmac and SIVagm all produce replication competent virus that grow to high titers in primary CD4+ T cells (22, 38, 54).
MATERIALS AND METHODS
Amplification of the HIV-1 env gene. Serial plasma samples collected from an acutely infected plasma donor, ZP6248, were purchased from ZeptoMetrix. A total of seven plasma samples were collected between 12 February and 9 March 1997, and viral loads (VLs) were determined by the COBAS Amplicor HIV-1 monitor test.
Sequence analysis. All SGA amplicons were sequenced directly by cycle sequencing and dye terminator methods using an ABI 3730xl genetic analyzer (Applied Biosystems, Foster City, CA). Individual sequences were assembled and edited using the Sequencher program 4.7 (Gene Codes, Ann Arbor, MI). The env sequences were aligned using CLUSTAL W (60), and manual adjustment for optimal alignment was done using MASE (20).
__________ is a mixture of minerals, organic matter, liquids, and gases that can provide a medium for plant growth.
A)
Sand
B)
Clay
C)
Soil
D)
Silt
E)
Humus
Which species have a short life span and reproduce in large numbers over a short period of time?
A)
threatened species
B)
invasive species
C)
k-selected species
D)
nonnative species
E)
r-selected species
Answer:
The first question is the C and second is E
Explanation:
You need a dog to work with the police.What traits would you want the dog to have? Why?
What factors limit and control the cell cycle?
Answer:
Many cell cycle control factors, mainly cyclins, cyclin-dependent kinases (Cdks) and cyclin-dependent kinase inhibitors (CKIs). Cyclins and Cdks activate cell cycle factors that are essential for the start of the next cell cycle phase.
Explanation:
Hope this helps
Which of the following helps to keep the biological membranes in a fluid state?
A.Waxes
B. Cholesterol
C. Phospholipids
D. Water
Answer:
C. Phospholipids
Explanation:
So sorry if I am wrong, but I hope this helps!
Which would most likely contribute to better digestion and respiration?
Answer: Energy is released when bonds in the food molecules are broken during digestion.
Explanation:
What do you think is the colour for happiness?
Answer:
yellow
Explanation:
Answer:
Yellow is the color of sunshine. It's associated with joy, happiness, intellect, and energy.
Explanation:
Drinking too much water during exercise can cause a condition in which the concentration of sodium in the blood is lower
than normal.
What immediate response would the blood cells have in this condition?
Cells swell as water moves into them.
Cells swell as water moves out of them.
Cells shrivel as water moves out of them.
Cells shrivel as water moves into them.
Answer:
c. Cells shrivel as water moves out of them.
Explanation:
right on edge 2021
We have that the right behavior of the cell in a situation where excess water enters the cell is
Cells swell as water moves into them.
Option A
WaterGenerally Water is Good for the body, But excess of water has its own adverse effect .
Sodium wash away in the blood causes hypo tonic solution in comparison to blood cell.
Therefore, on the count of excess water entering into to the blood cells, the cells tends to rise or swell as water enters into them.
Cells swell as water moves into them.
Option A
For more information on Water visit
https://brainly.com/question/13439286
How does mercury change from something benign to something harmful?
Answer:
Burning coal releases mercury into the atmosphere. It falls into sediments and is converted into methyl mercury by bacteria
Explanation:
Unit 1: (5 pts)
What are the 6 main properties of life that all living things share?
- What is the Scientific Method and why is it important?
Unit 2: (5 pts)
What are the major Biomolecules and why do we need them/what do they do?
-What are enzymes ang why are they important
Unit 3: (5 pts)
-Compare Prokaryotes vs. Eukaryotes
-Compare Plant vs. Animal Cells
- Tell how Cell working together and what is cell signaling and why important?
-Diffusion and Osmosis: What are they and what do they help do?
Unit 4: (5 pts)
-ATP/energy- what is it and why is it important?
Unit 5: (5 pts)
-Cell Respiration-what is it, what is the chemical reaction and how does it relate to
photosynthesis and what life forms do it?
Unit 6: (5 pts)
-Photosynthesis- what is it; what is the chemical reaction and how does it relate to cell
respiration and what life forms do it?
Answer:
all living things made up of cells
all living thing born,grow,and die
all living things breath
Explanation:
scientific method is the way scientist used to find new idea and even solution. and also to answer any questions.
steps of scientific method
observation or question researchhypothesis experiment analysis conclusionAnnie Laurie helped bring the story of the devastating
San Francisco earthquake.
Lindbergh kidnapping.
Galveston flood.
World War I.
Answer:
Galveston flood
Explanation:
Answer:
Galveston flood
Explanation:
Which optical phenomena are formed by ice crystals?
How do you think the systems on Earth work together to create what we see on Earth?
Answer:
The five systems of Earth (geosphere, biosphere, cryosphere, hydrosphere, and atmosphere) interact to produce the environments we are familiar with.
divide the planet into two main components: the biosphere, which consists of all life, and the geosphere. Because these subsystems interact with each other and the biosphere, they work together to influence the climate, trigger geological processes, and affect life all over the Earth
Explanation:
why is forcing the cell to increase the rate of the cell cycle lead to error in DNA replication