Answers
Answer:
2000
Explanation:
It is very close between 1990 and 2000, but from what I can see, 2000 had the least precipitation.
Related Questions
The mutation rate in bacteria is about 3 nucleotide changes per 10 billion nucleotides per cell generation. Under laboratory conditions, bacteria such as Escherichia coli can divide and double in number about every 40 minutes. If a single Escherichia coli cell is allowed to exponentially divide for 24 hours in this manner, how many mutations would you expect to observe on average in the genome (5 million nucleotides) of each of the resulting bacteria compared to the original cell
Answers
Answer:
About 0.05 mutations
Explanation:
Given that:
The no. of mutations per generation = 3 nucleotide changes per 10 billion or 3 per 10000 million.
For 5 million nucleotides; we have = (3/10000) × 5 = 0.0015
For 24 hours i.e 36 generations; we have:
= 0.0015 × 36
= 0.054 mutations
Which of the following statements is true regarding salt water
Answers
Answer:
if you out the statements, I will still answer them, but as you gave no statements, I cannot answer this question.
How does meiosis relate to haploid cells? How does fertilization relate to
diploid cells?
Answers
Answer:
Sexual life cycles involve an alternation between meiosis and fertilization. Meiosis is where a diploid cell gives rise to haploid cells, and fertilization is where two haploid cells (gametes) fuse to form a diploid zygote.
During meiosis Diploid cells divides which gives rise to haploid cells
while During fertilization two haploid cells fuses together which gives rise to offspring carrying a Diploid cell.
Cells found in human body are Diploid cells because they contain 46 chromosomes, while the sexual gametes are haploid cells because the number of chromosomes they possess is half ( 23 ) the number of chromosomes contained in every other body cell .
Meiosis is a cell division process whereby a parent cell is broken down into four gametes with each gamete containing half the number of genetic material/chromosomes contained in the parent cell.
Hence we can conclude that During meiosis Diploid cells divides which gives rise to haploid cells while during fertilization two haploid cells fuses together which gives rise to offspring carrying a Diploid cell
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Which of the following mutations is most likely to become fixed in a population? A neutral or nearly neutral mutation in a very small population. A beneficial mutation in a very small population. A beneficial mutation in an extremely large population. All of these mutations are equally likely to be fixed. A neutral or nearly neutral mutation in an extremely large population. Item at position 4
Answers
Beneficial mutations are more frequently fixed in large populations than in small ones, whereas deleterious mutations are more frequently eliminated.
Explanation:
List the organisms in a food chain of your choice. Label each organism as producer, primary consumer, secondary consumer and tertiary consumer (top
consumer).
Answers
Explanation:
producer(grass)primary consumer(zebra)secondary consumer(lion)tertiary consumer(vulture)
Which of the following correctly compares the types of root structures.
A. tap roots have many small roots while fibrous roots have a primary root and auxiliary roots
B. Tap roots have a root cap and undergo primary growth, fibrous roots lack a root cap and undergo
secondary growth
C. monocots have fibrous roots, dicots have tap roots
D. monocots have tap roots, dicots have fibrous roots
Answers
Answer:
C
Explanation:
Dicots have a tap root system, while monocots have a fibrous root system. A tap root system has a main root that grows down vertically, and from which many smaller lateral roots arise.
Helppp plssss important
Answers
Answer:
Due to its negative effect.
Explanation:
The drift nets are no longer used them because of its negative effect on the marine animals. These nets catch more than just fish, they could catch dolphins, whales, and many other species that leads to decrease their population and could be an endangered specie. So due to its negative effect on the marine animals, the drift nets have been banned in many countries.
What effect does overfishing have on a marine ecosystem?
OA It can lead to overconcentration of mineral elements.
ОВ. It can lead to loss of species or ecosystems.
OC. It can lead to increase in marine debris.
OD. It can lead to decrease in ocean pH levels.
Answers
Answer: ОВ. It can lead to loss of species or ecosystems.
Explanation: Too much fish farming could lead to extinction of some marine
wildlife.
7. The characteristic of life in which an organism obtains and uses energy is
A- homeostasis.
B- evolution.
C- growth and development.
D- metabolism.
Answers
WBCS are often called soldier of the body why
Answers
Answer:
WBC are called the soldier of body because
they make antigen to fight against the
any external things that try to
harm our body
by doing this they prevent our body
from being affected by these things
that's why they are called soldier of the body
what happens to carbon that has been in the soil for millions of years
Answers
Answer:
The element carbon is a part of seawater, the atmosphere, rocks such as limestone and coal, soils, as well as all living things. ... When plants and animals die, their bodies, wood and leaves decays bringing the carbon into the ground. Some is buried and will become fossil fuels in millions and millions of years.
Explanation:
Create a food chain that contains four organisms from a producer through three consumers using corn, rabbit, grass, wolf, snake, eagle, grasshopper, Fox, rat, and hawk.
Answers
Answer:
Corn → rat → hawk → wolf
Explanation:
A food chain is a linear relationship that shows the feeding pattern of different organisms. The food chain portrays which organism located in one trophic level eats another. A forward arrow (→) is used to show that the organism after the arrow feeds on the organism before the arrow.
Every food chain starts with an organism called PRODUCER, which is capable of supplying the energy that is transferred from one organism to another. The energy moves along organisms called CONSUMERS as they feed on one another. According to this question, the below food chain shows the feeding relationship between four organisms:
Corn → rat → hawk → wolf
Note that, corn is the PRODUCER, while rat, hawk and wolf are CONSUMERS
Which is an example of an abiotic factor that might limit the number in an
African grassland giraffe population?
Select one:
decrease in predators
increase in predators
severe drought
increase in the birth rate
Answers
Answer:
severe drought, since other are biotic factors.
Answer:
the person above me or below me is correct
Explanation:
explain why strength of lifting weights cannot be passed from parent to offspring in terms of evolution
Answers
Answer:
cuz if your parents lift weights but you sit on the couch all day and do nothing dont expect to be in good shape
Explanation:
28 female, purple body and green eyes12 female, purple body and brown eyes 29 female, orange body and green eyes8 female, orange body and brown eyes9 male, purple body and green eyes 29 male, purple body and brown eyes7 male, orange body and green eyes 30 male, orange body and brown eyes After looking at these results, what can you conclude about the inheritance of body and eye color in these insects
Answers
Complete question:
After you complete college, you decide to marry an entomologist. While on your honeymoon with your spouse in Costa Rica, you come across a new insect species. Upon getting approval from the Costa Rican government, you and your entomologist take a few male and female insects back to the US so you can study them. You pick a female insect with a purple body and green eyes, while your spouse chooses a male insect with an orange body and brown eyes. Back in the lab, you and your spouse breed the insects so that you, a geneticist, can understand how body color and eye color are inherited among this newly discovered species. Your crosses results in the following progeny:
28 female, purple body and green eyes12 female, purple body and brown eyes 29 female, orange body and green eyes8 female, orange body and brown eyes9 male, purple body and green eyes 29 male, purple body and brown eyes7 male, orange body and green eyes 30 male, orange body and brown eyesAfter looking at these results, what can you conclude about the inheritance of body and eye color in these insects
Answer:
We can conclude that, for each of the genes, there is complete dominance of one allele over the other. That neither of the genes that codify for these traits is sex-linked. And that the observed quantity of males vs females expressing each of the traits seems to be random.
Explanation:
Due to technical problems, you will find the complete question, answer and explanation in the attached files.
Select from the drop-down menu the best answer for each question. Which specialized organelle is shown? Which process occurs in the above organelle?
Answers
Answer: the person who asked this question attached the answer at the bottom of thier question I Just wanted to put an answer so people won‘t miss it.
Explanation:
Answer:
the person so submitted this question also had the answers attached, but it's Mitochondrion and Cellular Respiration
Explanation:
Plants, like all organisms, adapt to the conditions of their environment. Some special challenges a plant may face are drought, flooding, and a salty environment. Your task is to identify and describe ways that plants adapt to these challenging conditions in their environment. Select one plant adaptation to drought, one adaptation to flooding, and one for salt tolerance. Explain how each adaptation enhances plant survival. Identify a scholarly source of information for each. Use quotes appropriately; be sure your responses are written in your own words
Answers
Answer:
Hydrophytes is flood tolerant plants, barley is salt tolerant crop and sorghum is a drought tolerant crop.
Explanation:
Hydrophytes also known as flood tolerant plants that have adaptations to survive flood problems. The plant has the development of air spaces in the roots and stems which allow diffusion of oxygen from the aerial portions of the plant into the roots. Barley shows a greater degree of salt tolerance by applying method of osmoregulation which helps the plant to tolerate salt stress. Sorghum is a plant that is adapted to drought condition. These plants have less number of stomata and waxy layers on the leaves which lowers the rate of evaporation or transpiration.
HELP PLSSSSSSSS PLS PLS PSL
Answers
Good luck!
A female guinea pig that was pure-breeding for white fur, mated with a male guinea pig
that was pure-breeding for brown fur.
All the offspring had brown fur.
One of the male offspring mated with a female with white fur.
What proportion of white offspring would be expected from this cross?
one half
none
one third
O one quarter
Answers
Answer:
one half
Because they both were pure breed (bb and BB) and all the offspring came out as brown that means that brown is the dominant trait. So the offspring are all Bb and if the offspring mated with a white fur she would have to be bb meaning their children woild be either Bb or bb
3. In tropical regions,
a, a permanent thermocline traps nutrients in the deep water
b. primary productivity is high all year round, because there is a constant supply of solar energy for
photosynthesis
c, the thermocline disappears in the winter
d. the upper and lower layers of water mix all year round
Answers
Answer:
a, a permanent thermocline traps nutrients in the deep water
b. primary productivity is high all year round, because there is a constant supply of solar energy for photosynthesis.
Explanation:
Thermocline occurs in the tropical regions because the temperature is very high which warms the upper layer of water bodies whereas the lower layer of water has low temperature due to no sunlight. The primary productivity is high all year in the tropical regions, because there is a constant supply of sunlight that is needed by the plants for preparing their own food.
The condition influenza is caused by a virus
Answers
Answer:
True.
This means antibiotics will have no effect on the infection.
An example of a virus caused by a bacteria would be pneumonia.
What are ways animals adapted to our current urban environment
Answers
Answer:
Did you know that animals camouflage themselves so they can adapt to their environment? Adaptation can protect animals from predators or from harsh weather. Many birds can hide in the tall grass and weeds and insects can change their colour to blend into the surroundings.
Explanation:
Select ALL of the following genotypes below that respresent males.
XXY
XX
XYY
XXX
XY
Answers
Answer:
Is it XXX that all males want?
Explanation:
Just joking! I still think it is XXY
The genotype that represents males is XY of 50 % of both X and Y chromosomes where a slight change in the alignment might cause to chromosomal disorders .
XXY , XYY , XY represents males genotypes.
What are chromosomal disorders ?
These are the disorders which are associated with the change in the normal XY sequence of males. Various disorders and syndromes are associated with the mutation and the responsible factor can be trisomy like.
XXY is a chromosomal mutation found in the males only called as Jacob syndrome, XYY is a chromosomal disorder called as klinefelter syndrome found in males only.
XX is the genotype of a female, XXX is a condition that affects 1 in every 1000 females.
Thus, except XX and XXX is the exception as both of these represent females.
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Being able to understand the relationship between DNA, mRNA, tRNA, ribosomes and proteins, is necessary for any researcher interested in gene therapy. Gene therapy is dedicated to correcting genetic defects by replacing mutated genes with wildtype versions. This can include complete removal and replacement of the entire gene (knock-outs or knock-ins) or removal of only the actual mutated nucleotides. Sickle Cell Disease is an example of a single-point mutation: GAG becomes GTG, which codes for a new amino acid. One would only need to replace a single base to correct the disorder making it very amenable to gene therapy. The mutant sickle cell allele is called HbS (for sickled hemoglobin) while the wt allele is HbA. Philippe Kasongo, a masters student from Oxford is studying for an oral exam on gene therapy, and has an especial interest in the disorder since he comes from the Democratic Republic of Congo where Sickle Cell has a historical high rate of occurrence due to the prevalence of malaria. Oral exams are a feature of certain British schools where students form a line and have to answer a series of questions from their proctor rather than take a written exam. Should we try oral exams at Lehman this semester
Answers
Answer:
Yes.
Explanation:
Yes, we should try oral exams at Lehman this semester in order to fulfill the research on gene therapy done by the masters student. Test is to evaluate the performance of the student in the class, it can be taken by both the methods i.e. through written or through oral exams. Both have the same significance because both evaluate the performance of the students so we can try oral exams instead of written exams at Lehman this semester to help the masters student in his research.
HELP PLS THIS IS DUE IN 20 MINUTES AND I FORGOT 2 STUDY
Why are lichens a good pioneer species after a volcanic eruption?
a - They are able to grow on moist soil.
b - They are able to grow on bare rock.
c - They are able to attract animals.
d - They are able to grow without water.
Answers
In moths, White wings are dominant to tan wings. If a Ww moth is crossed with a ww moth, what are the possible phenotypes for their offspring? (Draw a Punnett square to help you.)
0% White, 100% Tan
25% White, 75% Tan
50% White, 50% Tan
75% White, 25% Tan
100% White, 10% Tan
Answers
Answer:
The genotypes are: Ww,Ww,ww,ww
So we will have 50% White, 50% Tan
What are the living and non-living parts of blood called?
Answers
Answer:
The non-living component of our blood is known as the extracellular matrix, called plasma,and it makes up 55% of our blood composition and makes blood unique among connective tissues because it is fluid.
Explanation:
Living blood cells)—include red blood cells (RBCs), white blood cells (WBCs), and cell fragments called platelets, and this makes up 45% of our blood composition.
To live in a hot desert environment organisms have to be adapted to
Answers
Desert animals must adjust to the extreme heat, lack of water, and harsh conditions.
What is adaptation?The process of adapting involves modifying something or your behavior to suit a new environment or purpose. The majority of living things can adapt when forced to.
Desert animals have to adapt to the intense heat, scarcity of water, and challenging environment.
The evenings, when it is cooler, are the only times of day where many desert creatures are active. To escape the severe conditions during the day, some animals burrow.
In deserts, animals live underground or take refuge in burrows during the sweltering summer months.
Some organisms do not require much, if any, water consumption because they obtain the moisture they require from their diet. Others occupy the desert's periphery, where there are more plants and places to hide.
Thus, this way, the organism adapt the extreme environment of desert.
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Define the term mixture.
Answers
Answer:
Hey mate....
Explanation:
This is ur answer....
A mixture is defined as the result of combining two or more substances, such that each maintains its chemical identity. In other words, a chemical reaction does not occur between components of a mixture. Examples include combinations of salt and sand, sugar and water, and blood.
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.
Traits that are due to _______ are considered to be acquired traits.
A education
B nutrition
C injuries
D all of these