Which of the following is a data piece a demographer would NOT be interested in when studying demography
A. Fertility
B. Mortality
C. Jobs
D.Migration
Answer:
C. Jobs
Explanation:
Demography is usually defined as the science of vital and social statistics, as of births, deaths, diseases, marriages etc. of populations.
This means that a demographer study both birth and death rates as they focus on human characteristics.
In demography, fertility is the birthrate of a population. Or in other words, the ability to produce offspring in a population. Mortality is the opposite of fertility; the death rate of a population. Both of these things are something that a demographer would study as they relate to the continuation of human society. Migration though, is a demographic process in which people migrate between different locations or places, resulting in a contribution to a population. So to explain the demographic terms, international migration takes an impact on a population with its age and size structure resulting in an indirect influence on the rate of future births in a population. This means that a overall, fertility, mortality, and migration all are therefore things that a demographer would study. After using process of elimination between the options, there is one left over, which is:
Option C - Jobs
What would be the first thing you would do if your clothes caught fire while working in a laboratory?
A.
Call out to your teacher
B.
Drop and roll on the floor to extinguish the fire
C.
Run towards a source of water to extinguish the fire
Answer:
Im going to go with (B) or (C)
Explanation:
These look like safe procedures that can help put out the fire.
Suppose a hare spotted a coyote and tried to run away. Coyotes can run at a speed of 70 km/h. Hare's can run at a speed of 65 km/h. How far could the hare run before the coyote catches up? assume the hare is 25 m from the coyote
Answer: 0.35 km or 350 m
Explanation:
The coyote runs 70 km/h
The hare runs 65 km/h
The coyote is 5 km/h faster than the hare
The hare is 25 m away, 0.025 km
I will graph this. x is the time passed, y is the distance. The point of intersection is when the coyote catches up.
(0.005, 0.35)
-> The hare can run 0.35 km before the coyote catches up.
All of the following are examples of evidence for evolution except... *
vestigial structures
o
non inheritable skills/traits
analogous structures
3
o embryology
Answer:
non inheritable skills/traits
is the moon a star or a satellite
Answer:
A star but I like to prefur a planet
Explanation:
i'll give brainliest! plss help
imagine that you are kneading dough for homemade pizza. Describe how the different areas of your body communicate through the nervous system.
Answer: you are using a few
Explanation:Your brain tells you hades to knead the dough and tells you how to move your arms hands
The nervous system is the control and the coordination center that passes the signals in the body. The motor and sensory actions work in accordance with the muscular system.
What is the nervous system?
The nervous system is the commanding center that controls the body's movement in response to action and stimuli. The body receives an action in the form of kneading in case of making pizza.
The somatic nervous system sends the sensory impulses to the brain and the spinal cord of the body to react to the kneading action. The impulses are received by the brain and the motor nerves send the reaction back to the muscles.
Therefore, the sensory and the motor nerves communicate in the nervous system.
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In what way can the human circulatory system be described as double circulation?.
Answer:
Explanation:
The human circulatory system has three key components: blood vessels, blood, and the heart. It is called a double circulatory system because blood passes through the heart twice per circuit.
The right pump sends deoxygenated blood to the lungs where it becomes oxygenated and returns to the heart.
The left pump sends the newly oxygenated blood around the body. When this blood returns to the heart, it has returned to a deoxygenated state.
Blood Passes Through The Heart Twice Per Circuit
Blood enters the heart:
Deoxygenated blood from the body enters the right atrium of the heart.
Blood pumped to lungs:
The right ventricle pumps this deoxygenated blood out of the heart and towards the lungs.
Lungs oxygenate the blood:
In the lungs, the deoxygenated blood exchanges carbon dioxide for oxygen. This is how it becomes oxygenated (contains oxygen).
Blood returns to the heart:
Oxygenated blood returns to the left atrium of the heart.
Blood pumped into the body:
This oxygenated blood is pumped out of the heart and to the body by the left ventricle.
Blood returns to the heart:
The oxygenated blood gives its oxygen to body cells in exchange for carbon dioxide. The blood becomes deoxygenated and returns to the heart.
Question 7 of 34
Which system does the endocrine system interact with to regulate water
levels in the body?
O A. Respiratory system
O B. Excretory system
O C. Reproductive system
O D. Digestive system
Answer:
B. Excretory system
Explanation:
Because the excretory system is made to remove urine which consists of waste materials such as excess salts and water. The kidneys are present in it as well. If there is too much water in the body the excretory system will produce urine with higher water concentration so whiteish urine will be produced and if there is a low amount of water in the body the excretory system will produce urine with lower water concentration so yelloish or greenish urine will be produced
human population increase as medical care improves and becomes more available true or false
What kind of vegetation would you most likely expect to find in the chaparral biome?
a.
deciduous trees
b.
tall grasses
c.
hardy shrubs
d.
tall pine trees
Hardy shrubs is the kind of vegetation would you most likely expect to find in the chaparral biome.
What is Chaparral biome?This type of biome is characterized by hot and dry summers and mild winter period.
It is composed of mostly hardy shrubs and is susceptible to fire during late summer period.
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Answer:
C. hardly shrubs
Source:
trust me bro
Explain the properties of RNA
Answer:
RNA forms in the nucleolus, and then moves to specialized regions of the cytoplasm depending on the type of RNA formed.
RNA, containing a ribose sugar, is more reactive than DNA and is not stable in alkaline conditions. RNA’s larger helical grooves mean it is more easily subject to attack by enzymes.
RNA strands are continually made, broken down and reused.
RNA is more resistant to damage from UV light than DNA.
RNA’s mutation rate is relatively higher.
Unusual bases may be present.
The number of RNA may differ from cell to cell.
Rate of renaturation after melting is quick.
RNA is more versatile than DNA, capable of performing numerous, diverse tasks in an organism.
RNA or ribonucleic acid is a polymer of nucleotides which is made up of a ribose sugar, a phosphate, and bases such as adenine, guanine, cytosine, and uracil.
It is a polymeric molecule essential in various biological roles in coding, decoding, regulation, and expression of genes.
Explanation:
Answer: The full form of RNA is RIBONUCLEIC ACID and is present mostly in viruses. RNA contains genetic information just like DNA.
Explanation:
Give a example of something being low supply what can happens to prices
Suggest a means by which you could separate mrna from the other types of rna in a eukaryotic cell
A method by which you could separate mRNA from the other types of RNA in a eukaryotic cell is oligo (dT) chromatography.
What do you mean by mRNA?mRNA may be defined as a molecule in cells that holds codes from the DNA in the nucleus to the sites of protein synthesis in the cytoplasm.
The mRNA can be easily isolated from other types of RNA by the most reliable and convincing method of oligo (dT) chromatography which is the magnetic separation method that bounds oligo (dT) molecules on the surface of paramagnetic beads.
Therefore, a method by which you could separate mRNA from the other types of RNA in a eukaryotic cell is oligo (dT) chromatography.
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What do phloem tissues do?
Answer:
Conducts foods made in the leaves during photosynthesis to all other parts of the plant
Answer:
Conducts foods made in the leaves during photosynthesis to all other parts of the plant.
Explanation:
Phloem tissues are found in plants and distributes food made from photosynthesis to the whole plant.
the method for determining energy expenditure in which the amount of oxygen a person uses is measured is called
Answer:
In indirect calorimetry, energy expenditure is determined by measuring the amount of oxygen consumed and carbon dioxide produced.
Explanation:
2. Match the description with the type of mammal:
• give birth to live young but then carry the tiny babies in a special pouch until they are fully developed
• babies can feed off of the milk in the pouch of their mothers.
• do not have nursing nipples,their babies simply lick the milk from the mammary glands on the skin
• found in Australia for the most part except for the opossum
O marsupials
O monotremes
O placentals
Answer:
marsupials
eg. Kangaroo
why is deforestation a key problem in LA?
Answer:
The loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for indigenous people.
Explanation:
With reference to the induced fit model, describe how the tertiary structure of a named enzyme facilitates its function as a biological catalyst
The induced-fit model includes the change in the conformational site of the substrate and enzyme. It is done till the enzyme completely binds the substrate. This will then activates the enzyme to perform its work.
What is induced fit theory?Induced fit theory or model suggest that the activation site of enzymes and the binding site of substrates undergo some conformational changes to fit into each other.
This binding results in activation of the enzyme and as the enzyme has a three-dimensional tertiary structure, this would help it to get fitted into the substrate.
Thus, with reference to the induced fit model tertiary structure of enzyme facilitates its function as a biological catalyst.
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Why does it help to organize data in a table?
Answer:
Organized data allows you to examine or analyze the data for patterns.
Explanation:
Answer:
Quality work and knowledge.
Explanation:
Keeping your data organized in a table will help you undertsand what youre looking at and how you can use it. Maximum organization keeps your mind organized as well.
what part of a plant is needed to propagate a new plant?
Answer:
a stem or a leaf
Explanation:
Cuttings can be made from any part of the plant. Most frequently, however, either a stem or leaf is used. A stem cutting includes a piece of stem plus any attached leaves or buds. Thus, the stem cutting only needs to form new roots to be a complete, independent plant.
Even though there are gaps in the fossil record, some of the most direct evidence for evolution comes from fossils called ______ fossils that illustrate how certain major transformations in life forms occurred.
Transitional fossils illustrate how certain major transformations in life forms occurred.
What is evolution?The term evolution refers to the changes that take place in organisms as they move from ancient forms to their present forms.
Fossil records have been very helpful in the determination of evolution patterns. Transitional fossils illustrate how certain major transformations in life forms occurred.
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In rabbits, brown fur is dominant over white fur. Fur color in rabbits is an autosomal trait (not s3x-linked). Two heterozygous rabbits are crossed. What is the probability of producing a white rabbit?
Which of these animals is known for its ability to detect electricity? cat platypus manatee tasmanian devil.
Platypus is an animal that is known for its ability to detect electricity. Details about platypus can be found below.
What animal is platypus?Platypus is a semi-aquatic, egg-laying monotreme mammal with a bill resembling that of a duck, that has a mole-like body, a tail resembling that of a beaver, a waterproof pelt, and flat webbed feet.
Electro-receptive animals like platypus can detect weak electrical fields generated by prey. They use these feature to catch prey or communicate.
Other examples of animals that can detect electricity are as follows:
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How long does it take to recover from a fractured elbow.
Menopause in women is a natural part of aging. During this transition the body's production of two hormones fluctuate and decrease. One is progesterone, the other is ________
Menopause in women is a natural part of aging. During this transition the body's production of two hormones fluctuate and decrease. One is progesterone, the other is estrogen.
What does estrogen do for a woman?Estrogen assists make women shapier than men by creating their pelvis and hips vaster, and their breast development.
Estrogen is part of menstrual cycle, helps you get pregnant, and recreates a part in aids you growth bones and grow hair.
It also helps control your tempers and affects your brain growth and network.
Thus, estrogen is the correct answer.
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What are some producers, consumers,
scavengers, and decomposers you have seen in your
neighborhood?
Answer:
Producers: oak trees, flowers, maybe pine trees
Consumers: Squirrels, spiders, dogs, cats
Decomposers: Wild mushroom, fungus on rotting food
Scavengers: Crows, possums, ants
Explanation:
Which animal is most closely related to the hyena?.
Well a hyena is a type of a dog, so dog or wolf
a thermometer with measurements divided into tenths is more ____ than a thermometer with measurements divided into whole numbers
Answer:
Accurate would be the answer I believe.
Explanation:
A thermometer would be more accurate in tenths because it can get much closer to the actual value of the temperature that is being read. Let's say someone has a temperature of 98.7 a thermometer that is in the tenths would be accurate and say that the temperature is 98.7, but if it was in whole numbers it would have to round the temperature, which would be inaccurate.
Accuracy: description of how close a measurement is to an accepted or true value.
Answer:
Accuracy would be the correct answer.
AlaskaFishing
10 minutes ago
Biology
High School
A man who is heterozygous for type A blood has children with a woman who has type O blood. What is the probability they will have a child with type O blood?
100%
75%
25%
50%
0%
Answer:
75%
Explanation:
3/4 of the phenotype will have O blood group, and 1/4 will have A blood group.
describe the five cellular targets of antibiotics, and explain antibiotics are effective against bacteria but not viruses.
Five cellular targets of antibiotics were exploited withinside the improvement of antimicrobial drugs: cell wall synthesis, protein , ribonucleic acid , (DNA) , and middleman metabolism.
How do antibiotics acts as resitance?The principal mechanisms of resistance are: proscribing uptake of a drug, amendment of a drug target, inactivation of a drug, and lively efflux of a drug. These mechanisms can be local to the microorganisms, or received from different microorganisms.
In principal, there are 3 principal antibiotic objectives in bacteria: The cell wall or membranes that surrounds the bacterial mobileular. The machineries that make the nucleic acids DNA and RNA. The equipment that produce proteins (the ribosome and related proteins).
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