Answer:
Value of p: 0.68
Value of q: 0.32
1. What do epidemiologists study?
A. risk factors for different diseases
B. how often a disease occurs in a particular area or group of people
C.blood and heart diseases
D. Non-infectious diseases and their causes
what are some sources of nitrogen
The main source of nitrogen include: atmospheric precipitation, geological sources, agricultural land, livestock and poultry operations and urban waste. Agricultural emissions show a strong increase due to the application of fertilizer to agricultural soils, grazing of animals and spreading of animal manure.
Which of the following is the best example of natural selection?
A)A population of a rabbits decreases in number as some move to another area.
B)The shell of a crab becomes harder over time as a result of being hunted by a predator.
C)A person's muscles become firmer from riding a bike for exercise.
D)A cheetah living in a zoo lives 10 years longer than average.
Answer:
B)The shell of a crab becomes harder over time as a result of being hunted by a predator.
Explanation:
Answer:
D
Explanation:
Plzz help I need this like right now it 20 points
Answer:
1. it is releasing antigens to destroy bacteria
1. Eight components present in nucleic acids are listed in the box.
Components of Nucleic Acids
1. Phosphate
2. Ribose sugar
3. Deoxyribose sugar
4. Uracil
5. Thymine
6. Adenine
7. Guanine
8. Cytosine
Which components bond with adenine in a section of double-stranded DNA?
By means of hydrogen bonds, the nucleic acid thymine bonds with adenine in a section of double-stranded DNA.
What are nucleic acids?Nucleic acids are the monomer units of DNA which is composed of long chains of nucleic acids linked together by phosphodiester bonds as well as by hydrogen binds between two DNA strands.
In double-stranded DNA molecule, the nucleic acid adenine bonds with thymine, while guanine bonds to cytosine through hydrogen bonds.
Therefore, thymine bonds with adenine in a section of double-stranded DNA.
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Most of the work of mixing humus within the soil is done by
A fungi
B.ants
C. earthworms.
D. bacteria.
Answer:
C. earthworm
Explanation:
Earthworms do most of the work of mixing humus with other materials in the soil. They carry humus down to the subsoil and subsoil to the surface.
The huge number of fish being harvested by humans from the oceans would be an example of
valuing biodiversity
exotic species introduction
over exploitation
humans being animals which is only natural
habitat destruction
Answer:
Over exploitation
Explanation:
The middle layer contains smooth muscle tissue, which contracts and relaxes to push blood. It also contains elastic connective tissue, which helps to regulate blood pressure. How do the two tissues in the middle layer relate to the artery's function?
Answer and explanation:
Arteries are the blood vessels that take blood from the heart to the tissues where it's needed. For this task to be achieved, arteries have different structures and properties in each of their layers.
Arteries have 3 layers, also called tunicas: the intima (in contact with the blood), the media, and the adventitia (the most external layer).
The media -or middle layer- is composed of smooth muscle tissue and elastic connective tissue. This tunica is usually the thickest of the three and has a hugely important role in blood flow and blood pressure regulation.
Blood pressure (BP) is a variable that the body needs to maintain in a range for everything to work effectively. When blood pressure falls, the middle layer of the artery contracts (both in response to the change in blood flow and thanks to the action of specific hormones) so blood can flow somewhat faster and compensate for the disturbance in BP. On the other hand, when blood pressure rises, the middle layer of the artery dilates, to make the blood flow slower.
Smooth muscle tissue is fundamental for contraction, while elastic connective tissue is needed for dilatation.
Answer:
D. The two tissues contain different types of cells, and each type performs different functions.
What factors limit the size of a cell?
Answer:
The factors limiting the size of cells include: Surface area to volume ratio (surface area / volume) Nucleo-cytoplasmic ratio. Fragility of cell membrane.
answer: The factors limiting the size of cells include: Surface area to volume ratio (surface area / volume) Nucleo-cytoplasmic ratio. Fragility of cell membrane.
Explanation:
WILL GIVE BRAINLIEST
Some steps in cell division are shown below:
1. Chromosomes condense and pair up
2. Segments of DNA of sister chromatids twist and cross
3. Exchange of DNA occurs between chromosomes
4. Four daughter cells are created that are haploid
Which of the following steps is least likely to occur during meiosis 1?
Step 1
Step 2
Step 3
Step 4
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Answer
1. Chromosomes condense and pair up
Explanation:
this is the very last step of miosis so it would not occur during miosis 1
This is made from weakened virus particles, that cause the body to build up a defense before you get an infection.
Answer:
live attenuated vaccine
Explanation:
The correct answer would be a live attenuated vaccine.
Vaccines are made from weakened/inactivated pathogens or their toxins and when they are administered to the body, they stimulate the body's immune system to produce antibodies that tend to persist and tackle any future invasion of the body by the pathogen.
Vaccines can be an inactivated ones if they are made from inactivated pathogens, they can be live attenuated if they are made from a weakened or attenuated version of the pathogen, or toxoid vaccine if they are made from toxins of the pathogen. Other forms of vaccines include mRNA vaccines, conjugate vaccines, and viral vector vaccines.
Species that require pristine conditions for survival and reproduction are useful as a(n)
exotic species
warning system
resource
parasite
image to capture the hearts and pocketbooks of today's youth.
Answer:
The correct answer is - warning system.
Explanation:
Warning systems are a type of system that could be technical or biological in nature that can help in assessing or inform about the possible danger or change in a particular setting such as ecosystem, weather, water quality, and many others. It helps in avoiding such threats before occurring or become serious threats.
Certain biological species that live or require a particular set of conditions for their survival and reproduction can act as a biological warning system for water pollution, air pollution.
I need help on 13,14,15 please ASAP
Answer:
Email your teacher they will give you the answers try it yourself
Explanation:
dangerous chemicals from a nearby mine have entered this lake. How do you think these chemicals will affect the fish in the lake?
Answer:
As a result of daily activities, man has been altering the environment since before recorded history. Increased urbanization, the Industrial Revolution, and an overall larger population base have accelerated the process considerably. While providing numerous societal benefits, modern chemical technology has also brought about a marked increase in the number and variety of chemicals ultimately entering natural surface waters. The last century has witnessed a substantial growth of the chemical industry and it is estimated that there are presently over two million known, chemical compounds in existence, with nearly 250,000 new compounds currently synthesized each year. Of this number, it is estimated that approximately 1,000 new chemicals each year will find their way into the environment as the end result of marketing, use, and disposal.
Explanation:
Why is oxygen consumption a good measure of respiration in yeast?
Answer:
The respiration of a suspension of yeast cells was measured by determining the decrease in pressure of the gas above the cell suspension. The apparatus was arranged so that the gas was confined to a constant volume, 16 cm3 and the entire pressure change was caused by the uptake of oxygen by the cells. The pressure was measured in a monometer, the fluid of which had a density of 1.034 g/cm3. The entire apparatus was immersed in a thermostat at 37. In a 30 minute observation period the fluid in the open side of the manometer dropped 37mm. Neglecting the solubility of oxygen in the yeast suspension, compute the rate oxygen consumption by the cells in mm3 of O2 (STP) per hour
Explanation:
did i get it
pleaseee help what does this mean-
Complete the following table comparing asexual and sexual reproduction.
Which of the following describes how an animal welfare activist would feel about raising cows for food and leather?
An animal welfare activist would feel fine about farmers raising cows for food but not for leather.
An animal welfare activist would feel fine about farmers raising cows as pets but not for any human consumption.
An animal welfare activist would feel fine about farmers raising cows for food and leather in a humane environment.
An animal welfare activist would feel fine about farmers raising cows for leather but not for food.
Answer:
An animal welfare activist would feel fine about farmers raising cows for food and leather in a humane environment
Explanation:
The correct answer is an animal welfare activist would feel fine about farmers raising cows for food and leather in a humane environment. The theory behind animal welfare is that animals can be owned and used by humans as long as they are treated well.
The other person is wrong and didn't try, report!!!!
Which of the following fur colors are possible in males? Choose all that apply.
Remember that the S gene for white spots is on an autosome, and the O gene is on the X chromosome.
Black
Black and White
Black, Orange, and White
Orange
Orange and White
Answer:
Black, Black and White, Orange, Orange and White
Explanation:
Black, black and white, and orange, orange and white are the available fur color possible in males due to the S gene present on an autosome.
What is autosome and X chromosome?When a gene is found on one of the numbered, or non-gender, chromosomes, it is said to be on an autosome.
Here, the O genes are found on the X chromosome whereas the S genes for white spots are found on an autosome. As a result, the progeny have fur that is black, white, and orange.
As a result, there are three conceivable fur colors: black, black, and white, and orange, orange, and white.
Therefore, S gene is present on autosome, hence black, black, and white, and orange, orange and white are possible fur colors in males.
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How are Saturn and Jupiter alike?
They both have rock surfaces.
They both rotate very slowly.
They both have rings.
They both have very low densities.
Answer:
Jupiter and Saturn are alike in six different ways. They both are huge and they both have a lot of moons. They both have rings and they are in our Solar System. Plus they are both gas planets, and they and they don't have any solid ground.
Explanation:
c they both have rings
Vhich is the MOST cooperative relationship between species?
Answer:
Mutualism
Explanation:
Which of the following is a circumstance under which asexual reproduction is beneficial? A. When a lot of genetic diversity would give an advantage B. When the environment is stable C. When the environment is frequently changing D. When there are lots of mates, making finding a mate easy
What happens when two plates interact?
Answer:
When two plates come together, it is known as a convergent boundary. The impact of the colliding plates can cause the edges of one or both plates to buckle up into a mountain ranges or one of the plates may bend down into a deep seafloor trench. ... Two plates sliding past each other forms a transform plate boundary.
What was the purpose of the Kinetic energy lab, the importance of the topic, and the question you are trying to answer? Ed genuity
Answer:
It is important to learn about, and very interesting. I would still like to learn more about it!
Explanation:
What occurs when Earth’s shadow covers the moon?
neap tide
spring tide
solar eclipse
lunar eclipse
When Earth's shadow covers the moon, it is called a lunar eclipse. This is the last option, as the lunar eclipse occurs when the Earth passes between the sun and the moon.
What is a lunar eclipse?A lunar eclipse occurs when the Earth, moon, and sun are aligned in a straight line with the Earth in the middle. When this happens, the Earth blocks the sun's light from reaching the moon, casting a shadow on the moon's surface. There are three types of lunar eclipses: total, partial, and penumbral. A total lunar eclipse occurs when the entire moon is covered by Earth's shadow, known as the umbra.
Hence, when Earth's shadow covers the moon, it is called a lunar eclipse. This is the last option, as the lunar eclipse occurs when the Earth passes between the sun and the moon.
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Explain why you think learning about different body parts will help us better understand human life and health? (I will give brainliest)
How is a penguin able to survive in the warm, Galapagos island weather?
How many chromosomes will this daughter cell have?
Answer:
Answer: 10 Chromosomes
ITS AN EMERGENCY PLEASE HELP ME ANSWER THESE 2 questions !!!!!!
Answer:1. D 2.A
Explanation: I am taking this class and I had a test with both of these questions and got it right
A forest fire in California destroys almost fifty acres of Forest. For scientists working
in the forest in the years after the fire, which will they be observing?
A. disturbance succession
B. post succession
C. secondary succession
D. primary succession
1) Sembrar 5 granos de maiz en cada uno de los siguientes recipientes sustratos, arena, canto rodado, arcilla, tierra negra abonada. 2 Medir semanalmente por un mes su crecimiento. Describe lo observado y redacta conclusiones de la experiencia
Answer:
El contenedor que tiene fertilizantes crecerá más.
Explicación:
El contenedor que tiene fertilizantes en dosis óptimas crecerá a un ritmo más alto y producirá más vegetación en comparación con otros contenedores que tienen poco o ningún fertilizante porque los fertilizantes tienen los nutrientes que necesitan las plantas en mayor cantidad para su crecimiento y desarrollo. El fertilizante contiene nitrógeno, fósforo, potasa y algunos otros nutrientes que contribuyen al crecimiento y desarrollo del cuerpo de la planta, por lo que podemos concluir de este experimento que el contenedor con nutrientes crecerá más rápido que otros.