Answer:
C. It was located in the Fertile Crescent.
Explanation:
Human civilization develop on the lands that situated between rivers because of the fertility of the land. These rivers brings nutrients rich soil which is deposited at the side of the river. Due to this nutrients rich soil, the agriculture is possible and we know that for agriculture is also very very important which is also available near to these soils so that's why the people of early civilization settled in this region.
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:
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
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.
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:
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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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:
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!!!
What do you think a convergent (destructive) boundary is? How do the plates interact with each other?
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.
Help please confusing
Answer:
Learned
Explanation:
Only this answer makes sense.
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.
HELPPPPPPPPPPPPP!!!
Answer:
i think the answer is the one you clicked on, the first answer.
Explanation:
According to the weather map seen here, we could expect weather conditions in Memphis to include
Answer:
Explanation:
A. Warmer tempartures,clearing
Answer:
Warmer temperatures, clearing.
Explanation:
I took the test :)
4. Floating algae called Phytoplankton is a
A.) secondary producer
B.) consumer
C.) primary producer
D.) very large plant
Answer:
In a balanced ecosystem, they provide food for a wide range of sea creatures.Phytoplankton, also known asmicroalgae, are similar to terrestrial plants in that they contain chlorophyll and require sunlight in order to live and grow.
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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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
If B is the dominant gene for brown eyes and P is recessive gene for blue eyes, what is the genotype for brown eyes?
Answer:
D
Explanation:
Both BB and Bb will result in brown eyes as it is the dominant trait. Only bb will result in blue eyes thus the answer is both choice 1 and 2.
A fruit fly somatic cell contains 8 chromosomes. How many chromosomes will each fruit fly gamete contain?
Answer:
The somatic cells of fruit flies contain eight chromosomes, which means they have two sets of four chromosomes. Meiosis is the process by which sex cells are produced. Sex cells are haploid, which means they have one set of chromosomes.
Explanation:
Fruit flies have two sets of four chromosomes because their somatic cells have eight chromosomes. The process through which sex cells are created is called meiosis. The haploid nature of sexual cells means that they only have one set of chromosomes.
What is Meiosis?In sexually reproducing organisms, meiosis is a unique type of cell division of spermatids that results in the production of gametes, such as sperm or egg cells. Two rounds of division are necessary, and the end product is four cells with just one duplicate of each chromosome.
When the chromosome count in daughter cells is decreased to half that of the parent cell during meiosis, the process is known as reduction division. For instance, while a human cell has 46 chromosomes, the egg and sperm cells created by meiotic division only have 23. In the above given example, fruit flies have two sets of four chromosomes as their somatic cells have eight chromosomes.
Thus, fruit flies have two sets of four chromosomes because their somatic cells have eight chromosomes.
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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 ASAP!!!! 15 points
Answer:
2= cytoplasm
1= cell membrane
3= DNA
Explanation:
That all i know
Is a pencil a biotic or abiotic matter?
Anna is creating a model to show atoms  of solid bromine and gases bro mine how should her three models differ.
Answer:
The size of the atoms should vary depending on the state. The mass of the atoms should vary depending on the state.
Explanation:
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.
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)
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
Which of the following amendments might you choose to improve the overall quality of the soil in the following scenario?
The soil in a garden is loamy, with a high organic content. On testing, the soil is sour, with a low pH of 4. You wish to grow lilacs, which prefer a more alkaline soil.
potassium
calcium carbonate
compost
nitrogen
Answer:
compost
Explanation:
Which of the following statements is likely to also be true of the TRAPPIST-1 planets based the characteristics of the terrestrial planets in our solar system?
Answer:
The star we today call TRAPPIST-1 was first discovered in 1999 by ... Telescope and ground-based telescopes discovered that the system ... Three of these planets are in the theoretical "habitable zone," the area around a star where rocky planets are most likely to hold liquid water. The TRAPPIST-1 system hosts seven Earth-sized, temperate exoplanets orbiting an ultra-cool dwarf star. As such, it represents a remarkable setting to study the formation and evolution of terrestrial planets that formed in the same protoplanetary disk
Explanation:
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
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?