Earth's orbit is not a perfect circle. It is elliptical, or slightly oval-shaped. This means there is one point in the orbit where Earth is closest to the Sun, and another where Earth is farthest from the Sun.
pls mark pls pls pls
What is the name of the system of measurement used by most countries
around the world?
Answer:
The International System of Units
Explanation:
(SI, abbreviated from the French Système international (d'unités)) is the modern form of the metric system. It is the only system of measurement with an official status in nearly every country in the world.
The ______________ system consists of the hypothalamus, pituitary, amygdala and hippocampus. They are located in the brain just under the cerebrum.
A) endocrine
B) limbic
C) nervous
D) skeletal
Answer:
The answer is B or limbic.
Explanation:
"The amygdala is the emotion center of the brain, while the hippocampus plays an essential role in the formation of new memories about past experiences."
Answer: LIMBIC
Explanation: I JUST DID IT.
Please help me I’m so confused
Answer:
I think wave A might have a lower pitch
Explanation:
Maybe since it has a lower frequency it has a lower pitch.
Answer:
Wave A has a lower pitch.
Two boats are operating near each other. One of these boats must take early and substantial action to keep well away from the other boat. Which is the boat that must take action?
Answer:
The boat is referred as the give way boat
Explanation:
The give way boat is the one who is meant to take any action and must take early and substantial action to keep well away from the other boat.while the other boat is meant to sail on the sea normally. This is used in the prevention of accidents on the sea as a result
Of the two boats trying to maneuver their way at the same time.
Incineration is a way to control pollution. which is an example of an incinerator
Answer: For example, hospitals and research facilities generally use incinerators to dispose of biological tissues, blood-contaminated materials, and other medical wastes such as disposable hypodermic needles and tubing.
Explanation:
Answer:
afterbuner
Explanation:
2. Name the vessels that arise from the aortic arch
Answer:
Three vessels come out of the aortic arch: the brachiocephalic artery, the left common carotid artery, and the left subclavian artery.
Explanation:
Hope this helps! <3
Huntington’s disease: Huntington’s disease is a disease in which certain parts of the brain waste away; symptoms usually begin later in life. In a community in Venezuela, an allele for Huntington’s disease (represented by the letter H) is completely dominantto the allele for no Huntington’s disease (represented by a lowercase h). The three possible parental genotypes are HH, Hh, and hh. There are six possible crossings that can be made between these genotypes (for example, HHxHH, HHxHh, etc.). Show the probabilitiesof the genotypesandphenotypesin the F1 generation from all sixpossible crossings.
Answer:
HH x HH, HH x Hh, HH x hh, Hh x Hh, Hh x hh, hh x hh.
Explanation:
In a community in Venezuela, an allele for Huntington’s disease (represented by the letter H) is completely dominant to the allele for no Huntington’s disease (represented by a lowercase h).
The three possible parental genotypes are HH, Hh, and hh.
There are six possible crossings that can be made between these genotypes. These are HH x HH, HH x Hh, HH x hh, Hh x Hh, Hh x hh, hh x hh.
HH x HH
Genotype: All HH
Phenotype: all express the huntington's disease (prob: 1)
HH x Hh
Genotype: 1/2HH 1/2Hh
Phenotype: all express the huntington's disease (prob: 1)
HH x hh
Genotype: All Hh
Phenotype: all express the huntington's disease (prob: 1)
Hh x Hh
Genotype: 1/4HH, 1/2Hh, 1/4hh
Phenotype: 3/4 express the disease, and 1/4 do not express the disease
Hh x hh
Genotype: 1/2Hh 1/2hh
Phenotype: 1/2 express the disease, and 1/2 do not express the disease.
hh x hh.
Genotype: All hh
Phenotype: All do not express the huntington's disease (prob: 1)
Which statement best describes the limits of science?
Answer:
Science cannot answer philosophical answers.
Answer:
No scientific theory can ever be proven true.
Physics has two tremendously good theories: Einstein’s Theory of Relativity, and Quantum Field Theory.
These have been around for about a century and no contradictions have shown them to be false.
And yet these theories contradict each other, so one or both will eventually be supplanted.
Explanation:
Science is based upon evidence. And no matter how much evidence you have for a theory, it is impossible to say it is true.
Thus, truth is beyond what science if capable of.
i need help in biology both questions!!
Answer:
4. a) Monoculture
5. c) Fossil fuels
Explanation:
4. a) Mono culture is the practice of cultivating one crop on a given land. Completely opposite to multiple cropping.
5. c) Fossil fuels provide energy to industries as industries get energy from mining. Therefore fossil fuels is an logical answer.
There are two species of freshwater shrimp that are introduced to a pond. The first species, Caridina cantonensis, is brightly colored with red and white stripes. The second species, Caridina multidentata, is more mottled drab in coloration. Fish have an easier time finding and eating Caridina cantonensis due to their bright colors. When each of these species reproduce they produce about 100 offspring, but only 30% Caridina cantonensis offspring survive to reproductive age, while 75% Caridina multidentata offspring survive to reproductive age.
A. In this situation what is natural selection selecting for?
B. In this situation what is natural selection selecting against?
C. How do you predict this population will evolve?
D. Identify how each of the listed conditions from the above scenario that influence natural selection. Population must have variation. Some variations are favorable More offspring are produced than survive Those that survive have favorable traits Differential reproductive success
Answer:
A. Colour of the freshwater shrimp
B. Predator fish problem
C. Based on the number of offsprings that has survived
D. Differential reproductive success
Explanation:
A. The freshwater shrimp species C. cantonensis is brightly coloured which is easy to find by fish whereas C. multidentata is mottled drab in colour which can hide in the environment. Therefore the natural selection will select for the mottled drab of the shrimp.
B. The mottled drab colour of the shrimp will be selected against the predator species which feeds on the shrimp population as the predator species can find the brightly coloured species easily but the mottled drab colour will not be found.
C. The population is evolving can be identified based on the number of population found in that area as 75% of C. multidentata species reach reproductive stage while only 30% of C. cantonensis reach the reproductive rate.
D. The condition will be known as Differential reproductive success.
Yersinia pestis, the organism that causes the bubonic plague, led to the deaths of approximately 75 million people is the 1300's. This was known as the Black Death. Which type of organism caused the bubonic plague?
Answer:
Yersinia pests
Explanation:
it is a bacterium. its vectors is infected flea from an animal. The plague can also results from contact with contaminated fluid from dead infected animal from bubonic plague.
when the flea bites, the bacterium enters the blood stream and through the lymphatic systems it finds it way into the lymph nodes of the armpit and pubic region.
it localized in the nodes leading to swelling, enlarged nodes-buboe, with painful sensation.
chills, high fever, seizures, are some of the symptoms.
proper hygiene is the best preventive methods.
How many deciliters are in 8.12 decaliters?
deciliters
Answer:
812
Explanation:
You just want to multiply it by 100.
Answer:
the answer to your promblem is 812
Question 25 of 34
1 Point
Which of the following describes the structure of nucleic acids?
A. Nucleic acids consist of carbon, hydrogen, and oxygen only.
B. Nucleic acids are formed when a glycerol molecule joins with
three fatty acids.
C. Nucleic acids are long chains of nucleotides.
D. Nucleic acids are made of long chains of sugar molecules.
Assume that three loci, each with two alleles (A and a, B and b, C and c), determine the differences in height between two homozygous strains of a plant. These genes are additive and equal in their effects on plant height. One strain (aa bb cc) is 10 cm in height. The other strain (AA BB CC) is 22 cm in height. The two strains are crossed, and the resulting F1 are interbred to produce F2 progeny. Give the phenotypes and the expected proportions of the F2 progeny.
Explanation:
In the given question, the trihybrid cross has been provided for the height trait and it is provided that recessive alleles (aabbcc) contribute 10 cm whereas dominant allele (AABBCC) contribute 22cm.
The height contributed by each dominant allele (A+A+B+B+C+C)= 22cm
The height contributed by each recessive allele (a+a+b+b+c+c)= 10 cm
The dominant genotype is 12 cm taller than recessive genotype which indicates that dominant allele contributes 2 cm.
In trihybrid cross-64 genotype will be formed with these dominant allele based on which the height of the plant will be determined.
The genotype with dominant allele (Height) and F2 progeny are
0 (10cm) - 1/64
1 (12cm)- 6/64
2 (14cm)- 15/64
3 (16 cm)- 20/64
4 (18cm)- 15/64
5 (20 cm)- 6/64
6 (22 cm)- 1/64
Answer:
Given,
aabbcc = 10 cm
AABBCC = 22 cm
The genes are additive which means that each dominant allele will contribute to the overall height. The base minimum height is 10 cm (no dominant allele) and the maximum height is 22 cm (all six dominant alleles). Thus, six dominant alleles contribute 12 cm of height to the base height, which means that each dominant allele adds 2 cm of height.
When, aabbcc X AABBCC :
AaBbCc ( F1 )
When, AaBbCc X AaBbCc :
7 types of phenotype is possible. They are:
6 dominant alleles = 22 cm
5 dominant alleles = 20 cm
4 dominant alleles = 18 cm
3 dominant alleles = 16 cm
2 dominant alleles = 14 cm
1 dominant allele = 12 cm
0 dominant allele = 10 cm
They will be in the ratio = 1 : 6 : 15 : 20 : 15 : 6 : 1 as given by the ratio of additive effect governing three loci. The intermediate phenotype ( 16 cm ) will be maximum in number and the numbers will decrease as we move to the extremes.
As the amount of water vapor in the air increases,
Answer:
what's the full question
Answer:
it would be, " relative humidity increases"
CRAZY REWARD FOR ANSWER AND 5 STARS FOR EVERY ANSWER
The apple tree receives 1000kJ of light from the Sun, but only uses 500kJ. Of this, only 250kJ are stored in the tree to be transferred through the food chain.
a)Calculate the efficiency of the tree (2)
b)State the ways in which the remaining energy has been transferred out the of the food chain (3)
a) [tex]\frac{250}{1000}[/tex] × [tex]100[/tex] [tex]= 25[/tex]%
b) Respiration, decomposition
briefly explain the mode of nutrition
Explanation:
There are 2 forms of nutrition/, autotrophic, and heterotrophic,
autotrophic= makes its food from raw materials,
heterotrophic= consumed nutrition, in mammals..
the following are the size of shoes 7,3,8,4,6,7
find the
1 mean
2 mode
Answer:
Mean is 28.3
Mode is 7
Explanation:
Draw a starch structure
Explanation:
I miss not sure if it's right
An object is located 8 cm away from a convex lens. The image is 24 cm away from the lens on the other side. What is the focal length of the lens?
A. 4 cm
B. 6 cm
C. 16 cm
D. 32 cm
Answer: B. 6 cm
Explanation:
First we take down the information given to us,
distance from the lens to the image (v) = 24cm
distance from the original object to the lens (u) = 8cm
So using the formula
1/u + 1/v = 1/f
Where f is the focal length
So we just input our information
1/8 + 1/24 = 1/f
Therefore;
3/24 + 1/24 = 1/f
4/24 = 1/f
1/6 = 1/f
f = 6
Our focal length = 6cm
Answer:B.6
Explanation:
:)
Which is the largest group of mollusksWhich is the largest group of mollusks?
Answer:
gastropods
Explanation:
The largest group is the gastropods
Answer:
gastropods
Explanation:
What is green building?
Answer:
Green building refers to the application of processes that take place throughout a building's life-cycle including planning, designing, construction, maintenance, renovation.
Explanation:
Green building is also known as green construction or sustainable building. It refers to the application of processes that take place throughout a building's life-cycle including planning, designing, construction, maintenance, renovation. All of these processes are environmentally responsible and resource-efficient. Green building ensures efficient use of land, energy, water, and materials.
Answer:
It is the practice of maximizing the efficiency with which buildings and their sites use resources (energy, water, and materials).
It is the practice of minimizing building impacts on human health and the environment.
Green building is also known as sustainable or high-performance building.
Explanation:
Edu 2021
What are the chemical signals that trigger increased respiration
Answer:
Sources of these signals include mechanoreceptors in the exercising limbs; the arterial chemoreceptors, which can sense breath-by-breath oscillations in the partial pressure of carbon dioxide; and thermal receptors, because body temperature rises as metabolism increases.
Explanation:
Which of the following are examples of an inherited trait for plants? (Check ALL correct answer.)
a) The type of fruit it makes
b) How tall it grows
c) If it receives enough rain
d) The color of its flowers
Answer:
A,b,d
Explanation: These are traits
How did Scientist find the human gene that makes insulin
Answer:
Recombinant DNA is a technology scientists developed that made it possible to insert a human gene into the genetic material of a common bacterium. This “recombinant” micro-organism could now produce the protein encoded by the human gene. Scientists build the human insulin gene in the laboratory.
Explanation:
If a plant has a genotype Rr, what is the probability it will produce a gamete that’s is R?
A) 25%
B) 50%
C) 0%
D) 100%
Answer:
B 50percent I think
Explanation:
correct me if I'm not sure
If a plant has a genotype of Rr, then the probability that it will produce a gamete that is R is 50%, which is present in option B. 50% represents the R, and the remaining 50% represents the r.
What are the gametes?The gametes are the products of the cells that undergo meiosis, and by the law of segregation, the alleles can segregate and the gametes are formed by the law of independent assortment. The alleles in this case are the R and r that are present on the chromosomes, and according to the segregation rule, half of the cells get the R allele and the other half get the r type of allele.
Hence, if a plant has a genotype of Rr, then the probability that it will produce a gamete that is R is 50%, which is present in option B. 50% represents the R, and the remaining 50% represents the r.
Learn more about the gametes here.
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To be effective, key choices must be
Many organisms depend on the land as a food source. Seasons can affect the amount of food that is available to these organisms. How would a long, cold winter most likely affect a population of deer?
The deer population will decrease.
The deer population will increase.
The deer population will remain almost the same.
The deer population will rebound the next year.
The deer population decreasing will most likely affect a population of deer.
What is a Population?This can be defined as the number of organisms in a given area over a period of time.
Winter season is characterized by unavailability of plants for grazing due to the harsh weather condition which will lead to starvation and a decrease in the deer population.
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A long, cold winter is likely to decrease the population of deer due to reduced food availability and increased stress and mortality rates.
Why cold winter affects deer population?A long, cold winter is likely to have a negative effect on the population of deer. This is because during a long, cold winter, the availability of food for deer can become scarce, especially if the winter is severe and there is a lot of snow on the ground. The snow can make it difficult for deer to access their food sources, such as grasses and shrubs. This can lead to malnutrition and starvation in some individuals, which can cause a decline in the population.
Additionally, a long, cold winter can also affect the reproductive success of deer. If the winter is too harsh, it can cause stress and illness in pregnant does, leading to fewer fawns being born in the spring. This can also contribute to a decline in the deer population.
Learn more about population, here:
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A graph with a calibration curve, linear regression and extrapolation was drawn up from your lab results. What were the two types of data that were being compared on the graph? (In other words what was on the X and Y axis) What does this graph tell you about the water sample you collected?
Answer:
X is the concentration of the substance being measured and Y is the response from the instrument that is being used to measure
Explanation:
A calibration curve is the plot of known concentration of substances where x is the increasing known concentration and Y is the response, typically "absorption" taken from the instrument that is used for measuring. This curve is then used to find out the concentration of the unknown substance by using it's absorbance and comparing it with the calibration curve. For example:
Concentrations and absorbance readings are as follows
0.5mg/mL=10 nm
1.0mg/mL=15nm
1.5mg/mL=20nm
2.0mg/mL=25nm
This data is plotted on a calibration curve. Next we measure the unknown substance the absorption is 20nm. We can suggest that the concentration is 1.5 mg/mL. If there are readings that fall inbetwen values then the formulat to calculate the right concentration would be y = mx + b, where m is the slope and b is the y-intercept.
Linear regression uses the modification of the slope formula y= a + bx to best see how the data of the water samples would fit on the slope of the calibration curve. X is the independent variable , b is the slope of the line and a is the y-intercept.
Extrapolation would be the action of calculating data that are outside the calibration curve, assuming the trend would continue.
which of the following is an example of mechanical weathering
Answer:
Examples of mechanical weathering include frost and salt wedging, unloading and exfoliation, water and wind abrasion, impacts and collisions, and biological actions. All of these processes break rocks into smaller pieces without changing the physical composition of the rock.
Explanation:
Mechanical weathering involves mechanical processes that break up a rock: for example, ice freezing and expanding in cracks in the rock; tree roots growing in similar cracks; expansion and contraction of rock in areas with high daytime and low nighttime temperatures; cracking of rocks in forest fires, and so forth.