Answer:
A. S phase of interphase
Explanation:
hope this helped :)
was Dr. Gey's use of Henrietta Lacks' cells unethical? Support
your response with evidence from all three sources,
For the source material please read the Radiolab segment, as well as the two articles on Dr. Gey's use of Henrietta Lack's cells from the biomedical test chapter 3.
Answer:
Dr. Gey's use of Henrietta Lack's cells after 24 years was not unethical due to his effort to figure out what was wrong with cells and why it happened to Henrietta.
Even if he did his intentions were to figure out how to treat cancer and help many people from the lethal condition. His effort made it possible to grown immortal human cells in culture. That help in developing the polio vaccine, and many other milestones.
Question 4
Which of the following is NOT a service that diverse ecosystems provide?
O Soil & nutrient retention
O Diversity of food items
O Water retention
O Animal habat
O Global warming
8. Which of the following statements is true about meiosis?
A. Meiosis produces 2 genetically identical daughter cells
B. Meiosis produces 4 identical daughter cells
C. Meiosis produces 4 genetically different daughter cells
D. Meiosis produces 2 different daughter cells
Answer:
B
Explanation:
Meiosis produces gametes that contain one complete haploid set of chromosomes
Meiosis is a reduction division, where the number of chromosomes in the daughter cells is reduced to half as compared to the parent cell. This set of chromosomes is called a haploid set or genome. The reduction from diploid to haploid occurs during Anaphase I of meiosis I, where homologous chromosomes separate and enter into two different cells. Meiosis takes place only in reproductive cells that divide to form gametes
So, the correct answer is 'Meiosis produces gametes that contain one complete haploid set of chromosomes'
hope that helps
A coyote has 78 chromosomes in its nucleus. What are the diploid and Haploid numbers of the coyote?
Answer:
I believe that the answer would be 39 and 78
Predator/prey interactions regulate the populations of both groups. Which chain of events follows from an increase in predators?
A. decrease in prey → decrease in predators → increase in prey
B. increase in prey → decrease in predators → decrease in prey
C. decrease in prey → increase in predators → decrease in prey
D. increase in prey → increase in predators → decrease in prey
Question: "Predator/prey interactions regulate the populations of both groups. Which chain of events follows from an increase in predators?"
Answer: "First, with a constant amount of predators in an environment, there will be a decrease in prey no matter what. However, if the population of predators decreases, this helps help improve the chances of future prey living, therefore, increasing the prey populations. Hence, in a nutshell, Option A is the best option that supports this."
The chain of events that follows from an increase in predators are decrease in prey → decrease in predators → increase in prey. That is option A.
Predator and prey interactionsPredators are animals that are usually carnivorous and hunts other smaller animals as preys.
Preys are those animals that are hunted, captured and eaten by predators.
In a particular habitat, when there is increased predators, there would be subsequent decrease in prey.
When the predators migrate to other areas in search of food, they decrease in number leading to increased number of preys in the area they migrated from.
Therefore, the chain of events that follows from an increase in predators are decrease in prey → decrease in predators → increase in prey.
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HELPPPPPPPPPPPPP!!!
Answer:
i think the answer is the one you clicked on, the first answer.
Explanation:
If the population of beetles in model 1 mated naturally would your prediction for the offspring in Question 4 still be valid? Explain.
Complete question:
Model 1 – Controlled (Selective) Mating: (Imagen in the attached files, PNG)
4. If each mating pair has one offspring, predict how many of the first generation offspring will have the following genotypes.
BB Bb bb
7. If the population of beetles in Model 1 mated naturally would your prediction for the offspring in Question 4 still be valid? Explain.
Answer:
7) If the population of beetles in model 1 mated naturally, the prediction for the offspring in Question 4 would not be valid. The number of individuals with each genotype in the F1 would change because there would be other possible types of crosses: Bb x bb, Bb x Bb, bb x bb
Explanation:
Due to technical problems, you will find the complete explanation in the attached files (PDF)
4 The finger-like structure in the wall
of the small intestine through which
food is absorbed into the blood-
stream is called
A duodenum.
B bile duct
C villus.
D pancreas.
E ileum.
Answer:
...................C
[tex]{ \blue{ \tt{option \: (c)}}} \: { \green{ \boxed{ \red{ \sf{ \underline{villus}}}}}}[/tex]
Explanation:-
Villus, plurally called villi, in anatomy any of the small, slender, vascular projections that increase the surface area of a membrane. Important villous membranes include the placenta and the mucous-membrane coating of the small intestine.
Y red ballonls and m green ballons were divided evenly amoung three kids. How many ballons did each kid get
Answer:
Each kids will get Y red balloons + M green ballons ÷ 3.
Explanation:
This is because Y red balloons and green red balloons are the total number of balloons present.
The total number of ballons are Y red+M green ballons.
The total number of kids are 3.
Therefore each kids with get the addition of the ballons divided by 3.
Therefore, Y red ballons + M green ballons ÷ 3.
how does adrenal glands overcome the low surrounding temperature at high altitude?
Answer:
The major secretions of the adrenal cortex (Box 4.2) are cortisol (the main ... for steroid synthesis is captured by receptors which bind low-density lipoproteins (LDL) ... It is essential to do this slowly and progressively to avoid precipitating acute
Explanation:
Which biome would animals be adapted to collecting FRUITS in the CANOPY layer of trees?
Answer: the forst or the jungly
Explanation:hope this help
The density of ocean water varies from place to place across the Earth. What factors control the density of ocean water?
A. depth and salinity
B. depth and temperature
C. salinity and life-forms
D. salinity and temperature
Answer:
D. Temp and salinity
Explanation:
explain what happens during old feild succession
Answer:
If undisturbed, an open field over time will be invaded by shrubs, which in turn will be replaced by saplings, young trees, and eventually a mature forest. Foresters often refer to these phases as the grass and forbs stage, shrub and sapling stage, pole stage, and mature forest.
Explanation:
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Which side represents high concentration?
Which of the following are techniques to estimate population size?
counting individuals
sampling
mark-and-recapture
population index
Answer:
The Mark-Recapture technique is used to estimate the size of a population where it is impractical to count every individual. The basic idea is that you capture a small number of individuals, put a harmless mark on them, and release them back into the population.
Two important measures of a population are population size, the number of individuals, and population density, the number of individuals per unit area or volume. Ecologists often estimate the size and density of populations using quadrats and the mark-recapture method.
Wildlife managers use 4 general approaches to estimate population sizes of wildlife: total counts, incomplete counts, indirect counts, and mark-recapture methods.
The answer is counting individuals and mark-and-recapture.
The technique counting individuals, sampling, mark-and-recapture, and population index are used to estimate population size.
What is population?A population is the entire set of individuals, whether that group is a nation or a group of people who share a characteristic.
To estimate population size, the following methods can be used:
Individual counting entails physically counting every individual in a population. This method is appropriate for small or sparsely populated areas.Sampling is the process of taking a representative sample of a population and extrapolating the results to estimate population size. This method is best suited for large or densely packed populations.Capturing and marking a sample of individuals, releasing them back into the population, and then capturing another sample later. The proportion of marked people in the second sample is used to calculate population size. This method is appropriate for populations that are difficult to directly count or sample.Population index: This method estimates population size by using indirect measures such as the number of nests or tracks. This method is appropriate for populations that are difficult to observe directly or for counting individuals. It is, however, less accurate than other methods.Thus, all the given options are correct.
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The evolution of the peppered moth over the last two hundred years has been studied in detail. Originally, the vast majority of peppered moths had light colouration, which effectively camouflaged them against the light-coloured trees and lichens upon which they rested. However, due to widespread pollution during the Industrial Revolution in England, many of the lichens died out, and the trees which peppered moths rested on became blackened by soot, causing most of the light- coloured moths to die off due to predation. At the same time, the dark-coloured moths flourished because of their ability to hide on the darkened trees. Since then, with improved environmental standards, light-colored peppered moths have again become common, but the dramatic change in the peppered moth's population has remained a subject of much interest and study Which type of selection is illustrated by the peppered moth's during the Industrial Revolution?
Answer:
Directional selection
Explanation:
The phenotype of individuals and the environment where they live, interact and determines the genes´ destiny in space and time. The result of this interaction and the gene destiny is Natural Selection. Natural selection selects beneficial alleles and increases their frequency in the population.
Among the different types of natural selection, we can find "directional selection".
Directional selection increases in the proportion of individuals with an extreme phenotypic trait, in this case, dark moths color. This selection presents more frequently in those cases in which interactions between living organisms and the environment modify in the same direction.
In the exposed example, the moth population must be adapted to its environment. The coloration is related to survival strategies. In the beginning, they expressed light coloration useful to camouflage and to avoid predators while resting on their lighted-substrate (lichens and light-colored trees). After the severe environmental impact of the Industrial Revolution, the environment changed. This change acted as a selective pressure. Lichens died, and trees became darker. Light moths were exposed and died after predation. Probably at one point of the evolution, the gene for color mutated, and dark-colored moths appeared. By natural selection, the mutation got fixed. This example reflects directional selection because the population turned from light color to dark color.
In the attached files you will find two graphs expressing directional selection.
help me please please
Answer:
just as too much or too little light causes yellowing of the seedlings
Explanation:
just as too much or too little light causes yellowing of the seedlings ,too much water or not enough can cause it
Farmer Joe wants to reduce water pollution from his farm. Select ALL of the methods below that would help him reach this goal.
1.Use biological controls
2.compost
3.Use organic fertiliser
4.Make biogas
Answer: 4. 3.
Explanation:
What is competition? Give example
Answer:
Competition is a relationship between organisms that strive for the same resources in the same place. ... Intraspecific competition occurs between members of the same species. For example, two male birds of the same species might compete for mates in the same area.
Hope it helps!!!
Which of the following statements best describes the structure of the cell membrane?
Technological advances are eliminating what kind of jobs?
a. corporate
c. nonprofit
b. less-skilled
d. none of the above
Answer:
less skilled
Explanation:
trust
Technological advances are eliminating less killed type of jobs.
what are different types of jobs ?The airline industry is a multi-billion-dollar job industry where Aviation jobs are available both in the air and on the ground, Creative arts and who love art and design can enhance their careers in an arts-related field.
Business Administration jobs make it in business, many jobs in this category will require some education past high school as well as an aptitude
Some education-related job like teaching jobs with the ability to teach can specialize in certain subjects, Educational requirements vary with the law of enforcement jobs.
For skilled writers, editors, and designers, media jobs are offered and these kinds of jobs might be found at print or digital publishing companies.
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Are we running out of clean water? And why, explain.
Answer:
well were not running out but not every place has clean water and no we never run out of clean water. theres always clean water
Explanation:
Answer: hm, our planet won't run out of water. fresh water isn't always avaliable when humans need it. half of the freshwater can be found only in 6 countries. more than one million humans live without clean water.
Explanation:
12. Which macromolecule is involved in how the trait for curly hair is passed
from parents to their children?
O carbohydrate
O nucleic acid
О lipid
O
protein
Answer:
c
Explanation:
edge 2020
Help please confusing
Answer:
Learned
Explanation:
Only this answer makes sense.
I don’t understand how we can see the sky and clouds and when your outer space you don’t see the sky or clouds you only see the ocean and the land?
Helpp!!!
A disease kills most members of a predator population. Which is the most likely effect on the prey population?
It too will be killed by the disease.
It will decrease in size.
It will increase in size.
There will be no effect on the prey.
Answer:
C. It will increase in size.
Explanation:
Please help, will mark brainliest if answered correctly.
If meiosis, specifically independent assortment, crossing over, and fertilization lead to genetic diversity, then how is it that we often see two individuals with no relation, look so much alike? Think doppelgängers.
What is a Cladogram?
Answer:
a branching diagram showing the cladistic relationship between a number of species
Please help me asap i will give brainlest
Answer:
number 1 its 25 number 2 its 10000
Explanation:
Definition of photosynthesis
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