Final answer:
The number of individuals that die in a population during a certain time period is referred to as the mortality rate, which is typically expressed as the number of deaths per 1,000 individuals per year, calculated based on age groups or sex within the defined time period.
Explanation:
The concept being described is known as the “mortality rate,” which is a measure of the number of deaths in a population during a specified time period. This can be applied generally or to specific causes of death. The typical expression of mortality rate is in units of deaths per 1,000 individuals per year. To accurately assess mortality, one would need to count the number of individuals that died within different age groups and possibly differentiate between sexes over a defined period. This could help determine age-specific mortality rates and sex-specific mortality differences which may be important in understanding the demographic characteristics of the population.
When calculating mortality rates, it is common to divide the number of individuals dying during an age interval by the number of individuals surviving at the beginning of that interval, and then multiplying by 1,000 to obtain a rate per 1,000 individuals. A high mortality rate in a population suggests a shorter life expectancy and can impact the population size and structure over time. The mortality rate is also referenced as the death rate, which especially in human demographics, is quantified as the number of deaths per 1,000 people per year.
4. Different restriction enzymes cut the same DNA molecule into different
numbers of fragments, because different restriction enzymes have
a. different base pairs
b. different sticky ends
c. different restriction sites
d. different nucleotide sequences
Final answer:
Different restriction enzymes cut DNA at specific restriction sites, each with its own recognition sequence, leading to different numbers of DNA fragments.
Explanation:
Different restriction enzymes cut the same DNA molecule into different numbers of fragments because they recognize different restriction sites on the DNA sequence.
Each restriction enzyme is able to identify its specific recognition sequence, which is often a palindromic sequence of nucleotides, and cut the DNA there. This can result in varying numbers of DNA fragments with different sizes.
These fragments typically have either 'sticky ends' or 'blunt ends', depending on the manner in which the enzyme cuts the DNA.
These ends can be used to recombine the DNA fragments with complementary DNA sequences in processes such as molecular cloning and recombinant DNA technology.
These beetles have a uniform distribution. In year 1, how many beetles are there per hectare? How many beetles per hectare were there in the year the beetles reached carrying capacity? Round up or down to the nearest whole number, if necessary.
Answer: In year 1, the population was 11,500 spread over 115 hectares.
The number of beetles per hectare is beetles.
By year 6, when the beetles reached the carrying capacity, the number of beetles per hectare is beetles.
Explanation:
Answer:
In year 1, the population was 11,500 spread over 115 hectares.
The number of beetles per hectare is beetles.
By year 6, when the beetles reached the carrying capacity, the number of beetles per hectare is beetles.
Explanation:
Edmetum
2 Points
Which of these is formed when a sodium ion is attracted to a chloride ion?
O
A. An ionic compound
B. A neutral ion
C. A covalent bond
D. A charged molecule
SUBMIT
Answer:
The correct answer is A. An ionic compound
Explanation:
Sodium (metal) and chlorine (nonmetal) form an ionic bond to each other, forming the NaCl (sodium chloride) molecule. Sodium transfers an electron to chlorine, which is missing an electron to complete the octet rule.
What is the relationship between parent and offspring genetic information?
Answer: The offspring contain one one set of chromosome from the mother and one from the father.
Explanation: During sexual reproduction, when the egg and sperm meet, the sperm contains 23 chromosomes and the egg also contains 23 chromosomes. Together the chromosomes combine, accounting for the genetic information in the offspring.
What limits woods plant growth in tundras
Answer:
The ecotone or ecological boundary region between the tundra and the forest is known as the tree-line or timberline. ... The soil there is frozen from 25-90 cm. Therefore, it is impossible for trees to grow.
Explanation:
In physical geography, tundra is an area where the tree growth is hindered by low temperatures and short growing seasons.
I hope this helps!
Answer:
soil
Explanation:
Xylem and _______________ are the two types of tissue that comprise a plant's vascular tissue.
A.mylem
B.phloem
Answer: B, is the asnwer you are looking for.
Explanation:
Identify the plant tissues in the three images.
DONE
Answer:
a. dermal
b. vascular
c. ground
next:
dermal, ground, vascular
Explanation:
did the assignment ;)
bones give us shape, protect internal organs, and
Answer: help us move ? it might also be that the support our body.
Explanation: im not too sure but i think this is the answer
The student chewed the bread and kept it in test tube and added few drops of Iodine solution
Answer: here`s your answer
Explanation: the solution will turn blue black colour as the presence of starch in bread and saliva from the mouth the iodine reacts with it and turns it blue black
What is defined as the body’s ability to protect itself from pathogens it is exposed to?
Answer:
Skin, tears and mucus are part of the first line of defence in fighting infection. They help to protect us against invading pathogens. You have beneficial bacteria growing on your skin, in your bowel and other places in the body (such as the mouth and the gut) that stop other harmful bacteria from taking over. Hope this kinda helped
Explanation:
Which of the following energy transfers occurs when food is digested?
Explanation: transformed into thermal energy your body putting off heat
answer mechanical energy
Some areas of an ocean are known as dead zones. These zones form when excess organic material decomposes. This increased decomposition uses up the oxygen from the water. Which human activity is most affected by the increasing number of dead zones in the ocean?
Answer:
Water Pollution
Explanation:
Dumping trash in the ocean and the smoke from factories goes in the water which makes the ocean more acidic and having less oxygen.
~Hope this Helps~
Answer:
It's B) Commercial fishing, because fish cannot survive without oxygen
Jamie is estimating the portion of his ecological footprint that arises from the food he eats. what property of the food should he measure?
A. Its cost to jamie or his family
B. the carbon dioxide that its production adds to the atmosphere
C.the total area of land or water resources that is needed to provide & transport the food
D. the total volume of fossil fuels, fertilizer, fresh water, and other resources that are needed to provide the food
Answer:
D. the total volume of fossil fuels, fertilizer, fresh water, and other resources that are needed to provide the food
Explanation:
Jamie's ecological footprint shall be determined by the volume of ecology affecting inputs used.
For instance, the amount of clean water to be used shall impact on the water supply given that clean water is a scarce resource.
Fertilizer affects the ecology negatively by draining harmful chemical compounds into the soil, so the lesser of this used, the better the ecological footprint she leaves.
Answer:
the total area of land or water resources that is needed to provide and transport the food
Explanation:
What do both scientific laws and theories require?
Answer: Both require A) Acceptance from the scientific community. B) Extensive amounts of valid evidence supporting the law and theory.
Explanation:
PLEASE ANSWER THIS
After recording the mass of the wood block, what other measurement must the student determine to calculate the density?
A) color
B) mass
C) temperature
D) volume
Answer:
D. volume
Explanation:
formula for density is mass / volume
I think it's volume.
A cows grazing in the field. Under what conditions does the cow have relative motion
Relative motion has been defined as the motion or the velocity of the object in reference to the start point. The cow will have relative motion if it changes its position compared to the reference.
What is relative motion?Relative motion or relative velocity has been the velocity and motion of the object with reference to the initial point and to the other body. It defines the rate of change occurring in two different bodies at the same time.
It can be used to show the relative motion of the cow as a reference point or frame is taken as the point to which the motion or the velocity of the cow is taken into consideration. The field is the fixed point to which the cows show motion.
Therefore, the relative motion of the cow can be explained based on the reference point of the field.
Learn more about relative motion, here:
https://brainly.com/question/17228388
#SPJ2
Relative motion between the cow and its surroundings occurs when either the cow is moving while the surroundings remain stationary, or when both the cow and the surroundings are in motion but with different velocities or directions.
When the cow is grazing in a stationary field, there is no relative motion as both the cow and the field are moving together with zero relative velocity.
However, if the cow is walking across the field or if the field is being traversed by other elements such as wind or water currents, relative motion between the cow and the surroundings arises.
Additionally, if the cow is stationary while the field is being traversed by, for example, a strong wind, relative motion occurs.
In essence, relative motion between the cow and its surroundings happens when there is a difference in their velocities or directions of movement.
Which activity is most likely to lead to lactic acid fermentation?
O
eating a big breakfast
O
sleeping for ten hours
O
taking a difficult exam
O
doing 100 sit ups in 5 minutes
Explain why DNA is the best type of evidence for evolution.
Evidence for large-scale evolution (macroevolution) comes from anatomy and ... DNA sequences comparisons can show how closely species are related. ... In this article, we'll look at several types of information biologists use to trace and ... of organisms on Earth follows patterns that are best explained by evolution, ...
Answer:
DNA is the best type of evidence because it shows that human DNA is closest to Monkey and gorillas which leads people to believe we came from them and evolved into a different species
Explanation:
These cells are typically found throughout the body tissues are called ?
Answer:
Somatic cells
Explanation:
Answer:
These cells are typically found throughout the body tissues are called?
Muscles are found everywhere in the body tissues made up of parenchyma cells
Explanation:
What is shown in the image?
prokaryote
eukaryote
chloroplast
mitochondrion
Answer:
C. Chloroplast i just did the test on edgeunity
Explanation:
What can you infer about water in the air?
Water in the air contains contaminates.
Water in the air does not have contaminates.
Water in the air is very large.
Water in the air is very salty.
Answer:
I believe water in the air contain contaminates c:
Explanation:
Heat from the Sun causes water to evaporate from the surface of lakes and oceans. This turns the liquid water into water vapor in the atmosphere. Plants, too, help water get into the atmosphere through a process called transpiration! ... Water can also get into the atmosphere from snow and ice.
Final answer:
Water in the air contains contaminants because all naturally occurring water can absorb substances from the environment. Human activities and natural phenomena both contribute to the contamination of atmospheric water vapor.
Explanation:
Based on the information provided, we can infer that water in the air does contain contaminates. All naturally occurring water, including atmospheric water vapor, can absorb various substances from the environment, such as minerals, pollutants, and biological materials. As water is a good solvent, it easily dissolves materials it comes across, leading to the presence of contaminants. While environments can handle a degree of contamination, there is a threshold beyond which the contamination becomes harmful to health and ecosystems.
Pollution happens when contaminants are introduced into the environment at damaging levels. Water vapor in the air can be contaminated by human-induced pollution, such as industrial emissions, or by natural phenomena, like volcanic eruptions. It is our human activities – agricultural, industrial, and sewage treatment processes, among others – that have a significant impact on the quality of water in the environment. This holds true for the water in the air, as it is part of the global water cycle and is subject to the same contamination processes as surface and ground water.
What relationship exists between genes and chromosomes?
The relationship that exists between genes and chromosomes is that genes are found in chromosomes.
What is a chromosome?Chromosome is defined as the hereditary material that are found in the cells of parents which are transferred to their offspring during reproductive processes.
The chromosomes are made up of proteins called histones which the genes are wound around .
Genes are defined as the functional hereditary unit that is found in the chromosomes of mammalian cells.
Therefore, a relationship is said to exist between the chromosomes and the genes because the genes are found within the chromosomes.
Learn more about genes here:
https://brainly.com/question/25703686
#SPJ6
Which of the following is NOT a carbohydrate
Glucose
Sucrose
Glycine
Cellulose
Answer:
Glycine
Explanation:
Glycine is an amino acid, not a carbohydrate.
Glycine is not a carbohydrate. Therefore, option (C) is correct.
What are carbohydrates?Carbohydrates are one of the main classes of macronutrients that are essential for the human diet. They are molecules composed of carbon, hydrogen, and oxygen in a ratio of approximately 1:2:1, and are used primarily as a source of energy in the body. Carbohydrates are found in many foods, including fruits, vegetables, grains, and dairy products.
There are two main types of carbohydrates: simple and complex. Simple carbohydrates, such as glucose and fructose, are made up of one or two sugar molecules and are quickly digested and absorbed by the body. Complex carbohydrates, such as starch and fiber, are made up of many sugar molecules and take longer to digest, providing sustained energy.
Learn more about carbohydrates, here:
https://brainly.com/question/29775112
#SPJ5
What is shown in the diagram below?
A. Sun breeze
B. sea breeze
C. land breeze
D. water breeze
Answer:
b sea breeze
Explanation:
I hope I helped
Answer: C. Land breeze
Explanation:
Since there is a lower pressure over the ocean and the air is warmer it is going to try to move towards the higher pressure to balence it out. Causing a Land Breeze
Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions.
Online Content: Site 1
According to the article, how does the intermittent recovery test differ from the intermittent endurance test?
The intermittent recovery test differ from the intermittent endurance test in the way that intermittent recovery test uses twenty-five meter long strip of floor space instead of twenty-two and half meter long strip.
Explanation:
In intermittent endurance test, twenty-two and half meter long strip divides the floor into two sections - one of twenty meter and another of two and half meter. The subject is supposed to run in the longer section a per CD until he reaches the other side or he hears the recorded beep.
One hearing the beep, he must turn and return back to his starting point. On reaching there, he is given five seconds time to walk or jog in the shorter section which is of two and half meter.
If the subject fails to cover twenty meter long section before beep sound, a warning is issued to him.
In case of intermittent endurance test, twenty-five meters long strip is used to divide the floor section into parts, one of one of twenty meter and another of five meter. In this test extra five seconds are also added for active break time, thus making it of ten seconds.
Answer:
The intermittent recovery test differ from the intermittent endurance test in the way that intermittent recovery test uses twenty-five meter long strip of floor space instead of twenty-two and half meter long strip.
Explanation:
Which of these is true about vaccines?
A
They prevent viruses from replicating once you are infected.
B
They are not effective at giving people immunity against a virus.
C
They cause the body to produce antibodies against a specific virus.
D
They cause the body to become actively infected with a mild form of a specific virus.
Answer:
a
Explanation:
Answer:
A. C, and D
Explanation:
A: it inserts that type of virus into your body so your immune system learns how to defend your body from it.
C: Your body produces some type of small organism cell or whatever it is to work and fight against that specific virus.
D: Yes, the vaccine is basically the virus but a test so your body learns how to fight it.
Can someone please help me this question?
The choices are:
A) move and capture food
B) create and exchange genetic material
C) Store and regulate water
D) make and store energy
Answer:
A) move and capture food
Explanation:
Amoeba is madeup of single cell and having a true nucleus or membrane around the nucleus. Amoeba belongs to kingdom protista because it has some characteristics of animals such as it can move from one place to another. Amoeba used phagocytosis which is a type of endocytosis in which large substances are entered into the cell. Pseudopod is part of amoeba body which is responsible for the movement and capturing the food.
The energy of a UV wave from the sun becomes part of the internal energy of the sidewalk causing the sidewalk to heat up, then the wave's energy was
Answer:
The wave energy was transformed into thermal energy.
Explanation:
Thermal energy is energy related to the generation of heat within a system. This is because thermal energy arises when potential energy agitates the molecules of a system, generating kinetic energy. This agitation of the molecules promotes heat to the system, transforming the kinetic energy into thermal energy and making the system temperature higher.
An example of this can be seen when the waves coming from solar energy promote the heating of a system, like a sidewalk for example. These waves promote the movement of the sidewalk molecules, transforming the wave energy into thermal energy.
Does a cell use energy when molecules diffuse in or out of the cell?
Why?
Answer:
There are two major ways that molecules can be moved across a membrane, and the distinction has to do with whether or not cell energy is used. Passive mechanisms like diffusion use no energy, while active transport requires energy to get done.
Explanation:
The cell use energy when molecules diffuse as there are two major ways that molecules can be moved across a membrane, and the distinction has to do with whether or not cell energy is used. Passive mechanisms like diffusion use no energy, while active transport requires energy to get done.
What is diffusion?Diffusion has been defined as the process of passive transport in which a single substance would moves from an area of high concentration to an area of low concentration until the concentration has been equal on both areas.
Diffusion distance rate of diffusion depends on the distance molecules have to travel. The greater the diffusion distance needs to travel the longer it takes to move.The greater the distance that a substance must travel, the slower the rate of diffusion. Oxygen moves from the alveolus to the capillary through the respiratory membrane which means the thickness of the respiratory membrane is diffusion distance.
Therefore, The cell use energy when molecules diffuse as there are two major ways that molecules can be moved across a membrane, and the distinction has to do with whether or not cell energy is used. Passive mechanisms like diffusion use no energy, while active transport requires energy to get done.
Learn more about diffusion on:
https://brainly.com/question/14852229
#SPJ2
Volume of Rectangular Prisms
A rectangular prism has a length of 14m, a height of 6m, and a width of 20m. What is
its volume, in cubic m?
Answer:
1,680 cm.
Explanation:
--> LxWxH.
--> 14x6x20.
Final answer:
To find the volume of a rectangular prism with dimensions of 14m in length, 6m in height, and 20m in width, you multiply these dimensions to get 1680 m³.
Explanation:
The question involves finding the volume of a rectangular prism. The formula to find the volume of a rectangular prism is to multiply its length, width, and height. Given a rectangular prism with a length of 14 meters (m), a height of 6 meters (m), and a width of 20 meters (m), the volume is calculated as follows:
Volume = Length × Width × Height
Volume = 14m × 20m × 6m
Volume = 280m × 6m
Volume = 1680 cubic meters (m³)
Therefore, the volume of the rectangular prism is 1680 cubic meters (m³).