Answer:
D is the correct answer
Explanation:
It drops from 9 to 3 individuals to the female population between the ages of 9 and 19.
What is population?A population is made up of every organism of a specific species that resides in a specific location. Demography is the statistical study of populations and how they evolve through time.
Population size, or the total number of people, and population density, or the number of people per unit of space or volume, are two crucial indicators of a population. Ecologists use quadrats and the mark-recapture technique to evaluate the size and density of populations.
A population of organisms may be dispersed randomly, uniformly, or clumped. When a population is described as uniform, it is evenly spaced, random indicates uneven spacing, and clumped, it is dispersed in groups.
Therefore, It drops from 9 to 3 individuals to the female population between the ages of 9 and 19.
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True or False.
The lymphatic and immune systems contain the lymphatic vessels and ducts, lymph nodes, bone marrow, and spleen.
Answer:
True
Explanation:
I also like your profile picture
The lymphatic system consists of lymphatic vessels and ducts, lymph nodes, and spleen. The immune systems consist of bone marrow. Hence, statement true.
What is immune system?The system that helps to fight infections and diseases with the help complex system of tissues, cells, organs is called as immune system.
In humans, immunity is of 3 types including:
adaptive immunity- natural immunityinnate immunity- develops throughout lifepassive immunity- borrowed from any source that doesn't last long.Bone marrow and the thymus are primary parts of the immune system. Bone marrow play significant role in production of blood cells including B and T lymphocytes. In also includes organs of lymph system such as lymph node, thymus, spleen, tonsils, lymph node, and lymph vessels.
Therefore, The statement above is true.
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What is the role of enzymes in the DNA replication process?
A. Enzymes read the DNA code and build a new DNA molecule from scratch.
B. Enzymes link together to form a template for a new DNA molecule to be built.
C. Enzymes split the DNA molecule into two rails and then transport corresponding nitrogenous bases to each rail.
D. Enzymes link adjacent nucleosides together, becoming an integral part of the structure of the new strands of DNA.
Answer:
B.
Explanation:
what is a sedimentary rock
Answer:
Sedimentary rocks are formed from pre-existing rocks or pieces of once-living organisms. They form from deposits that accumulate on the Earth's surface. Sedimentary rocks often have distinctive layering or bedding. Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at the Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles to settle in place. Sedimentary rocks are made when sand, mud and pebbles get laid down in layers. Over time, these layers are squashed under more and more layers. Eventually, the layers are lithified – turned to rock. Sedimentary rocks can be formed in deserts, lakes, rivers and seas .
Which of the following areas of science would
allow someone to obtain a job for NASA?
A. Physical Science
B. Life Science
C. Social Science
D. Medical Science
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Cat coat color is an X-linked trait.
Calico cats typically have patches of black, white, and orange on their coats as a result of X-inactivation. Most calico cats are female, but rarely a male calico will be born into a litter.
Which of the following could explain calico coat color in a male kitten?
Choose 1 answer:
(choice A)
A
The male kitten has a genotype of XXY.
(choice B)
B
The male kitten has a genotype of XXX.
(choice C)
C
The male kitten has a genotype of XYY.
(choice D)
D
The male kitten has a genotype of YY.
Answer:
d)Explanation:
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Overgrazing reduces grass cover and negatively impacts the soil health by reducing it's ability to hold water . How can Overgrazing be prevented and support a more sustainable use of grasslands ?
A. Allow developers to buy rachlands for housing .
B. practice moving confined cattle every few days
C. Allow unlimited animals to graze in a given area to reach carrying capacity.
D. practice grazing an area of land at the same stage of plant growth each year .
Answer: C. Allow unlimited animals to graze in a given area to reach carrying capacity.
Explanation: I choose this as the answer because the animals grazing in the wrong parts be part of the reason the soil can't hold the water it needs, so allowing animals in a particular area that's less of a problem with Overgrazing would be helpful
Which two traits are acquired during a person's lifetime?
O A. Dimpled cheeks
O B. A back injury
O C. A short haircut
O D. Brown eyes
Answer:
B and C
Explanation:
Technically these are not traits. They are subjects that someone has acquired over the period of their life.
Hope this helps :D Have a great day
Answer:it's b and c
Explanation:
Trust me
Why do you think mendel spent so much time observing plants & their offsprings before he began experimenting with them?
I don't know if you mean, like, historically or in relation to the scientific method...
I know he was a monk... (I think it was his job to be the gardener too)
But you're supposed to observe before you can come up with a question that you would then answer through experimentation.
Scientists learn about the universe by studying the light that comes to Earth from stars and other objects in space. If you were a scientist hoping to understand the universe, what three questions would you ask?
50 POINTS MAKE IT FAST
Answer: Here's 4 so you can choose
How many stars are in space?
How far away from Earth are certain stars?
Are there other planets like Earth?
Could a large meteor ever strike Earth
Explanation:
Anaerobes carry on whereas aerobes carry on cellular respiration
Answer:
Anaerobes carry on cellular respiration in the absence of oxygen, whereas aerobes carry on cellular respiration in the presence of oxygen.
Explanation:
Many of the cell processes needed need some energy to occur. Cellular respiration is the process by which cells degrade organic compounds and turn them into energy. Cellular respiration follows two ways, which depend on the presence or absence of oxygen, and both of them begin with the process of glycolysis, which occurs in the cytoplasm and does not need oxygen to occur.
Aerobic Respiration
Occurs in the presence of free oxygen.Series of reactions by which pyruvic acid (product of glycolysis) turns into CO₂ and H₂O, producing many ATP molecules. Respiration occurs in the mitochondria.Takes place in two steps or stages: Krebs cycle and electron transporter chain. Glycolysis and Krebs cycle produce electrons, which then travel along the electron transporter chain while releasing energy, and ATP is produced.Anaerobic Respiration
Occurs in the absence of free oxygenSeries of reactions by which using pyruvate (product of glycolysis) 2 ATP molecules van be produced. There are two ways in which anaerobic respiration can be produced: lactic fermentation and alcoholic fermentation. Lactic fermentation produces lactic acid and 2 ATPAlcoholic fermentation occurs in two steps, and the final products are ethylic alcohol, 2ATP, and 2 CO₂The whole anaerobic process occurs outside the mitochondria.Which is held constant when a gas obeys Boyle's law?
A. motion
B. pressure
C. temperature
D. volume
Answer:
B
Explanation:
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When a gas obeys Boyle's law, the temperature is held constant. The correct option is C.
What is Boyle's law?Boyle's law is given by Charles Boyle. It is a gas law that states the pressure decrease with the increase in the volume and the temperature remain constant. In other words, the pressure exerted on gas is inversely proportional to the volume of the gas.
The law shows the relationship between pressure and volume, with the temperature remaining constant. There are three gas laws which are given by different scientists. These laws show the relationship between two variables and the third remains constant. These variables are temperature, volume, and pressure.
Thus, the correct option is C. temperature regarding the gas obeys Boyle's law, and it remains constant.
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which of the following substances is formed during photosynthsis hurry please thx
Answer:
Glucose
Explanation:
During photosynthesis plants produce a substance called glucose from simple inorganic molecules.
Hope this helps :D Have a fantastic day ^-^
According to the reading, the sun is NOT a typical star.
O True
O False
what is a cell wall and what are its functions
Answer:
a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants it consists mainly of cellulose.
Explanation:
i hope this helps!
Which describes the number of new infants per one thousand individuals in a
population per year?
A. Birthrate
B. Space availability
C. Carrying capacity
D. Death rate
Answer: a
Explanation:
birth rate
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What is the source of all energy in an lecosystem?
Options:
Cellular Respiration
Photosynthesis
Recycling of Matter
Solar Energy
Answer:
solar energy
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Answer:
SOLAR ENERGY
Explanation:
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What types of cells have cell walls ?
The type of cell that possess cell wall is plant cell. The correct option is A.
What is cell wall?A cell wall is a structural layer located just exterior the cell membrane that surrounds certain types of cells.
It can be tough, flexible, along with being rigid at times. It basically aids structural support as well as protection to the cell, as well as acting as a filtering mechanism.
The cell wall is made up of a network of cellulose microfibrils and cross-linking glycans embedded in a matrix of pectin polysaccharides that is highly cross-linked. Lignin can be found in secondary cell walls.
Plant cell walls, as the interface between adjacent cells, frequently play important roles in intercellular communication.
Plant cell walls play an important role in plant-microbe interactions, including defense responses against potential pathogens, due to their surface location.
Thus, the correct option is A.
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Your question seems incomplete, the missing options are:
Plant cell.Muscle cells.Blood cells.Animal cells.Increasing the number of coils in a solenoid or an electromagnet results in a ___
magnetic field.
Answer: Stronger Magnetic Field
Explanation:
The magnetic field in a solenoid is given by
[tex]B=\mu nI[/tex]
where B=magnetic field
[tex]\mu=[/tex]Permeability
n=no of turns per unit length
I=Current through solenoid
When No of turns increases, it increases the strength of the magnetic field.
Answer:
Hey I saw that you had the Geometry end of year review escape room I was wondering if you maybe had the answers and work for the rest of the pages?
Explanation:
Thank u
1.scientist refer to a biological community and the abiotic parts of the environment that affects the community as _______?
A. Biome
B. Ecosystem
C. Population
D. Community
The charged particles in the beams that Thomson studied came from atoms. As these particles moved away from their original atoms, they formed a visible beam. The current model of the atom includes protons, neutrons, and electrons.
What is the best use of an atomic model to explain the charge of the particles in Thomson’s beams?
An atom’s negative particles are surrounded by positive matter, so the positive particles are easier to remove.
An atom’s positive particles are surrounded by negative matter, so the negative particles are easier to remove.
An atom’s smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to remove.
An atom’s larger positive particles are at a distance from the central negative particles, so the positive particles are easier to remove.
The question to the above information is;
What is the best use of an atomic model to explain the charge of the particles in Thomson's beams?
Answer;
An atom's smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to remove.
Explanation;
-Atoms are comprised of a nucleus consisting of protons (red) and neutrons (blue). The number of orbiting electrons is the same as the number of protons and is termed the "atomic number" of the element.
J.J. Thomson discovered the electron. Atoms are neutral overall, therefore in Thomson’s ‘plum pudding model’:
atoms are spheres of positive chargeelectrons are dotted around insideAnswer:
Its C on edge
Explanation:
What is it called when DNA is not bunched together
How long ago was our solar system born from its stellar nebula?
Answer:
Approximately 4.6 billion years ago
Explanation:
QUICK PLS
Body cells have
____ the number of chromosomes as sex cells.
a: 4times
b: one half
c: one fourth
d: twice
Answer:
Body cells have twice the number
Which of the following is a
mechanical wave?
A. Sound
B. Light
C. Radio
D. Gamma Rays
What is the genotypic ratio for this Punnett square?
3:1
02:2
O 1:2:1
O 1:1:1:1
Answer:
3:1
Explanation:
because there is a ratio of 3 A TO 1 B
if the first letters are dominant
True or false the main source of energy and water cycle is gravity
Answer:
False please mark me brainlest.
Explanation:
The following RNA strand was produced:
5′ AAA AUG AGU AAG 3′
Which of the following DNA strands could have been the template for this RNA?
Choose 1 answer:
(Choice A)
3′ AAA ATG AGT AAG 5′
(Choice B)
3′ UUU TAC UCA UUC 5′
(Choice C)
3′ TTT TAC TCA TTC 5′
(Choice D)
3′ TTT ATG TGC TTC 5′
Answer:
Choice 3
Explanation:
Because T corresponds with A and the letter could have been an option but the letter U cannot be in a DNA strand
The sequence of DNA below is part of a gene. How many amino acids are coded for by this segment?
5 ATTAGTCCGTAC 3
A. 2
B. 3
C. 4
D. 5
Answer:
b
Explanation:
Where do the mineral resources in which society depends on come from
Answer:Without minerals we would not have electricity, food, or shelter. Minerals make today's technology-based life possible, but that's something many of us take for granted.
Explanation:Soil, rocks, and minerals provide essential metals and other materials for agriculture, manufacturing, and building. 7.7. Earth scientists and engineers develop new technologies to extract resources while reducing the pollution, waste, and ecosystem degradation caused by extraction.
Does Natural Selection affect individuals or populations? EXPLAIN.
Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.