Answer:
In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species? are related and gradually change over time.
Question 9 (5 points)
The iron triad of transition metals includes____
iron, zinc, and copper
cobalt, iron, and nickel
copper, silver, and gold,
zinc, cadmium, and mercury
Answer:
b. cobalt, iron, and nickel
Explanation:
Answer:
It's "Iron, Cobalt, and Nickel."
Explanation:
Hope my answer has helped you!
Call poison control for someone who has swallowed poison.
O
A. True
B. False
Is this true or false ?
Answer:
A. True
Explanation:
You should always call poison control for someone who has swallowed poison.
The statement "Call poison control for someone who has swallowed poison" is definitely true.
What is Poison control?Poison control may be defined as a method of monitoring the individual and prescribing immediate treatment to the person who swallowed poison.
Poison control centers are built in order to provide immediate treatment to the person who swallowed poison through telephonic methods.
Therefore, the above statement is definitely true.
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factors that can increase mutation rates are______ a. high temps b. low temps c. food additives d. UV rays
Answer:
high temperatures, food additives and UV rays.
Explanation:
Factors that can increase mutation rates are high temperatures, food additives and UV rays.
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Factors that can increase mutation rates are UV rays.
Option D
Explanation:
The physical or chemical agent which damages the DNA and creates mutation are UV rays, gamma rays, and x rays. These rays damages the bonds between the nucleotides specially between the thymine -thymine nucleotides resulting into thymine - thymine dimer. This mutations disrupts the processes like replication or transcription and can be corrected with the help of DNA repair mechanism of the cell.
Hydrogen is group with alkali metals because it
A.Is a metal
B.Has one electron in its outer energy level
C.it is a gas
D.does not readily form compounds
Hello There!
Hydrogen is group with alkali metals because it "does not readily form compounds"
Hydrogen is found in many substances. Our body needs Hydrogen because essentially everything we see contains Hydrogen.
Option B is correct. Hydrogen is group with alkali metals because it has one electron in its outer energy level.
What are the alkali metals?
Alkali metals are those chemical elements that carry one single electron in their last energy level.
These metals are usually
shiny, soft, and malleable. light and express high reactivity. good electricity and heat conductors.
Although Hydrogen is placed among the alkaline metals, it is not really alkaline.
It is grouped there because of its atomic characteristics because it has a single electron in its outermost layer.
However, it does not express any of the alkaline chemical properties.
Option B is correct. Hydrogen is group with alkali metals because it has one electron in its outer energy level.
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On which part of the compound light microscope are specimens placed for viewing?
B
D
E
F
The answer is Part D.
.
.
.
Specimens are placed on the stage of a compound light microscope for viewing (D) Stage. Therefore , (D) Stage is correct .
Here is a brief explanation of each component:
(A) Arm: The arm is a structural component that supports the microscope head (or body) and connects it to the base.
It provides stability and allows for the movement of the head in a vertical direction to adjust focus.
(B) Head (Body): The head, also known as the body, houses the optical components of the microscope. This includes the eyepiece (ocular lens) and the objective lenses.
Users typically look through the eyepiece to view the specimen. The head may also have additional features like the fine and coarse focus adjustments.
(C) Eyepiece (Ocular Lens): The eyepiece is the lens that you look through when using the microscope.
It magnifies the image produced by the objective lens and typically provides a standard magnification, such as 10x. Some microscopes have eyepieces with a built-in pointer or reticle for measurement.
(E) Nosepiece: The nosepiece is a revolving turret located under the objective lenses.
It holds multiple objective lenses of varying magnifications, allowing users to switch between them easily by rotating the nosepiece.
(F) Base: The base is the sturdy and flat lower part of the microscope that supports the entire instrument. It provides stability and balance to prevent the microscope from tipping over.
In some microscopes, the base houses the illuminator (light source) and electrical components for lighting the specimen.
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Living organisms respond to changes in environmental conditions such as temperature. Which series lists the correct order in which the body would respond to such a change?
tissue, cell, organ, organ system, organism
tissue, cell, organ system, organ, organism
cell, tissue, organ, organ system, organism
cell, tissue, organ system, organ, organism
Answer: Cell, tissues, organ, organ system, organism
Explanation:
Living beings shows several changes occurring in the environment by their sensibility.
Cell, tissues, organ, organ system and organism is the correct order of sensing the changes occurring in the external environment of the organism such as temperature change. The cell is the smallest unit of the organism body. The group of cells called as tissue. The group of tissues forms the specialized structure that is called as organ. The organ performs functions in the body of the organism.
The cells exhibit receptors which transfer the information to the tissues, the tissues form the organ system, the organ and organ system generates the mechanism of homeostasis to control the body regulation according to the changing external temperature. Thus the organism survive in the changing temperature.
What is the purpose of the turbines in coal-fired power plants?
O carrying electricity
O burning coal
O generating steam
O converting energy
Answer:
converting energy ( last choice)
The purpose of the turbines in coal-fired power plants is to convert energy.
What is a turbine?A turbine is a machine that is used to generate electricity. It is attached to any plant in which the purpose is the generation of electricity.
Hence, the purpose of the turbines in coal-fired power plants is to convert energy.
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9. What area of study applies scientific findings to create ways for solving problems
or improving life?
A biogeology
B mathematics
c manufacturing
D engineering
Answer:
Engineering
Explanation:
Engineering applies scientific findings to create ways for solving problems since it introduces advancements in society.
Answer:
D engineering
Explanation:
A key feature of animal body plans is that they can show multiple types of symmetry. For example, a dog would represent bilateral symmetry, while a jellyfish and other cnidarians would represent
A. spherical symmetry.
B. circular symmetry.
C. planar symmetry.
D. radial symmetry.
Explanation:
the correct answer is d radial symmetry
Answer:
radial symmetry
Explanation:
PENN
How does a dog meet all the characteristics of life
here's yur answer mate
yur welcome
Which of the following is a feature of all cells?
O
A. All cells have a nucleus.
O
B. All cells have DNA for at least part of their life cycle.
HET
.
O
C. All cells are spheres.
O
D. All cells have a rigid cell wall.
: A. All cells have a nucleus. All cells contain a nucleus, which is the control center of the cell. The nucleus is responsible for controlling the activities of the cell, including the production of proteins and other molecules.
What is the function of a cell ?It also stores the cell's genetic information in the form of DNA. The nucleus is surrounded by a membrane, which separates the nucleus from the rest of the cell. Without a nucleus, the cell would not be able to carry out its necessary functions. B. All cells have DNA for at least part of their life cycle.
All cells contain DNA, which is the genetic material that carries the instructions for how the cell will grow and develop. DNA can be found in the nucleus of the cell, as well as in the cytoplasm. DNA is present in all cells for at least part of their life cycle.
Also, It is responsible for passing on genetic information from one generation to the next and is essential for the growth and development of the organism. Therefore, A and B are features of all cells.
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DNA is always read in the direction___, whereas RNA is read in the___direction.
Answer:
DNA is read in the 3 prime to 5 prime direction, and RNA is read 5 to 3.
Answer:
DNA is always read in the direction 3' to 5', whereas RNA is read in the 5' to 3' direction.
Explanation:
I just got this question on Edginuity and got it right.
describe how light waves interact with the clothes you're wearing and your eyes
Light waves reflect off of certain things and absorb into others, but these things depend on the color of the wave. Your eyes don't see light that is absorbed, but rather reflected off of the surface of the object. For example, a white T-Shirt is white because all light is reflected, as an orange T-Shirt is orange because red and yellow light waves are both reflected.
Light waves interact with our clothes and eyes through reflection, absorption, and transmission. The color we perceive is determined by which wavelengths of light are reflected by the object and absorbed by our eyes.
Explanation:Light waves interact with the clothes you're wearing and your eyes in several ways, primarily through reflection, absorbance, and transmission. For instance, a shirt you're wearing may appear a specific color because it reflects light waves of that color while absorbing others. This light is reflected from your clothes and then reaches your eye, which processes it and allows you to perceive the color.
The lens of your eye functions similarly to a camera lens or a mirror. It forms an image of the light coming from the surrounding environment, including the light bounced off your clothes. Light from your clothes or the environment is absorbed by your eyes, and depending on the wavelength of the light, you perceive different colors.
In fact, if you're wearing a red shirt, your shirt is reflecting the red wavelengths in the white light that shines on it, and absorbing all other colors. When this reflected red light enters your eyes, the cells in your retina perceive it, and transduce it to nervous impulses that your brain interprets as the color red.
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Which helps prevent errors in DNA replication?
Answer:
Complementary base pairing
Explanation:
The DNA replication is the process by which one DNA makes exact copies of it during the cell division.
The attachment of bases to one another is complementary which means that the adenine will always combine with thymine and guanine always pairs with the cytosine.
Answer: Complementary base pairing reduces errors) is the answer
Explanation:
I am doing the apecx test i spelled it wrong because it says that it is inappropriate.
what is the role of
a pioneer species in primary succession
The process by which Prokaryotic cells divide is known as:
Answer:
binary fission
Explanation:
The process by which Prokaryotic cells divide is known as binary fission.
prokaryotic cells are cells that do not have a nucleus and replicate through the process of binary fission
Explain the color of the moon in this image
A) The moons color is the reflection of the sunset on earth
B) The color of the moon is the light that is transmitted from earth
C) The refraction of the sunlight into earths atmosphere gives the color
D) The sun is so large that it rats pass by the earth in lights up the moon
C.
The rest don't make sense.
The Moon during a lunar eclipse, when the Earth's shadow casts on the Moon, is entering the Earth's shadow which blocks most of the light from the sun. The light isn't totally blocked out, which this gentle glow of red is caused by the light getting refracted by our atmosphere, making it appear a rust color.
Vague explanation.
The refraction of the sunlight into earths atmosphere gives the color explain the color of the moon in this image. Thus, the correct option is C.
What is the colour of moon answer?The photo of the Moon, taken from space are the true color views of the Moon. That gray color we see comes from the surface of the Moon that is mostly oxygen, magnesium, silicon, iron, calcium and aluminum. The lighter color rocks are generally plagioclase feldspar, whereas the darker rocks are pyroxene.
During a lunar eclipse, when the Earth's shadow casts on the Moon is plunge into the Earth's shadow that blocks most of the light from the sun. The light is not totally blocked out, so this soft red glow is due to the light getting refracted by our atmosphere on earth, makes it appear a rust color.
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Which statements accurately describe soil? Check all that apply.
Soil condition directly affects crop growth.
Soil is used faster than it is replaced.
Soil cannot be replaced in a short time.
The amount of soil on Earth is unlimited.
The destruction of soil can take just minutes.
Answer:
1, 2, 3, and 5
Explanation:
I tried it and it was right.
Soil is the topmost layer of Earth, contains minerals and organic matter. soil can affect crop growth, used faster than replaced, can't replace in short period, its destruction can occur in just minutes.
What are the characteristics of soil?Soil is composed of organic as well as inorganic materials. It can be of three types, i.e., sand, slit and clay.
The main points to be noted regarding soil are:
Soil can affect crop growth directly or indirectly.Its texture decides the cultivation of crop.Soil is used faster than it is replaced.It is not possible to replace soil in short period of time.Soil can be destructed within some minutes.Percentage of presence of sand, slit and clay gives proper texture to soil.Thus, option 1, 2, 3 and 5 is correct.
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How do adaptation affect a species?
Hello There!
An adaptation is a way that an animal has changed in its environment that allows the animal to survive.
Adaptations make the species more genetically diverse
Answer: Adaptations helps the organism to have genetic variability.
Explanation:
Adaptations help the organism to survive in the extreme conditions. This is because there is something special in the body of the organism that helps in living the life more smoothly.
In case of any change in the environmental conditions the change in the body of the organism helps in survival. Such as padded feet of polar beer aids in living in such an extreme colder environment.
The polar beers that evolved and adapted in such conditions will survive and rest will not.Adaptation in the body is genetic that aids in physical change.
So, adaptations helps in survival of organisms by genetic variability.
What is technology?
A. A method for doing scientific research
B. Science applied to practical problems
C. A system of government
D. The use of science to answer ethical questions
Answer:
It is B. Science applied to practical problem I did process of elimination and also researched on all the other answers and found them wrong.
Explanation:
Which of the following explains Darwin's theory of natural selection?
1. Individuals in a population with traits best suited for that environment survive and increase in number.
2.Present organisms are related to and descended from past organisms.
3.More recent species of organisms are changed descendants of earlier species.
An example of genetic drift
Answer:
A random succession of births results in all other hair colors going extinct within a village full of redheaded people.
Explanation:
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You'll need to select a sample that represents a larger group when you're conducting
A. a case study. B. archival research. C. survey research. D. naturalistic observation.
Final answer:
You'll need to select a sample that represents a larger group when you're conducting survey research, as it allows for the collection of data from a designated group of respondents to understand broader population characteristics.
Explanation:
You'll need to select a sample that represents a larger group when you're conducting survey research. Survey research involves collecting data from a predefined group of respondents to gain information and insights on various topics of interest. Selecting a representative sample is crucial in survey research because it allows researchers to generalize the findings from the sample to the larger population. Surveys can be administered in various ways, such as online, by phone, or in person, and they enable researchers to collect vast amounts of data relatively quickly. However, it's important to note that the depth of information obtained may not be as detailed as that from methods like case studies or in-depth interviews.
A fly has two alleles for the color of its eyes. the green allele is recessive and is represented by q. the blue allele is dominant and is represented by p. if 44 of 100 organisms are green, what is p?
Answer:
[tex]p = 0.34[/tex]
Explanation:
Given -
Green allele is recessive and is represented by "b"
Blue allele is dominant and is represented by "B"
Also out of [tex]100[/tex] organisms, [tex]44[/tex] are green in color. Thus, all these [tex]44[/tex] organism would have genotype "bb"
As per Hardy Weinberg's equation , frequency of "bb" is represented as [tex]q^{2}[/tex]
Thus frequency of allele "b" would be equal to
[tex]\sqrt{q^{2} }[/tex]
[tex]= \sqrt{\frac{44}{100} } \\= \sqrt{0.44} \\= 0.66[/tex]
As per first equation of Hardy Weinberg-
[tex]p+q=1[/tex]
Frequency of allele "B" will be equal to
[tex]p = 1-q[/tex]
Substituting the value of q, we get
[tex]p = 1-0.66\\p = 0.34[/tex]
A(n)_____ Element is one in which the nucleus breaks down and gives off particles and energy
Stable
Gaseous
Metallic
Radioactive
Answer:
It's D. Radioactive element.
Explanation:
Hope my answer has helped you!
Answer : The correct option is, Radioactive.
Explanation :
Radioactive element : It is an element in which the nucleus breaks down and gives off energy and particles.
Radioactive decay : It the process in which an unstable atomic nucleus loses energy by emitting the radiations like, alpha particles, beta particles, or gamma rays.
The radioactive materials have unstable nuclei.
The naturally occurring radioactive elements are, radium, thorium, and uranium.
Thus, a radioactive element is one in which the nucleus breaks down and gives off particles and energy.
Why are bacteria good for copying large amounts of DNA?
O
A. They do not contain their own DNA.
O
B. They cannot accept DNA from other organisms.
O
C. They can reproduce very quickly.
O
D. They have a very thick cellular membrane.
Bacteria are good for copying large amounts of DNA, as they can reproduce very quickly.Therefore, the correct option is C.
What are bacteria?Bacteria are single-celled microorganisms that belong to the domain Bacteria. They are among the most abundant and diverse forms of life on Earth.They have the ability to rapidly copy DNA due to their fast replication rates. They can divide and produce offspring every 20–30 minutes under optimal conditions, allowing them to copy large amounts of DNA in a short period of time.
This makes them useful in a variety of molecular biology techniques, such as the amplification of DNA through polymerase chain reaction (PCR) or the production of large quantities of recombinant DNA using bacterial cloning vectors.Therefore, the correct option is C.
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Which of the following is a detritivore?
A. Radish
B. Elephant
C. Earthworm
D. Jaguar
A detritivore is a animal that feeds on dead organic matter. A good example for a detritivore will be option C "Earthworm." A Earthworm feeds on dead organic matter such as dead plants, animals, rotten fruit, etc...
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what are 3 domains of life
Archaea, Bacteria, and Eukarya.
The three domains of life are Domain Bacteria, Domain Archaea, and Domain Eukarya, encompassing all living organisms based on cellular structure and genetic relationships. Bacteria and Archaea are prokaryotes without nuclei, whereas Eukarya are complex eukaryotic organisms with nuclei.
The Three Domains of Life
The concept of the three domains of life is a central idea in biology, classifying all living organisms into these categorical groups. These domains are based on differences at the molecular level, particularly the genetic sequences and cellular structures.
Domain Bacteria: This group contains prokaryotic organisms that are characterized by cell walls and a lack of membrane-bound nuclei and organelles.
Domain Archaea: Similar to bacteria, archaea are prokaryotes without a nucleus, but they have distinct biochemistry and gene sequences that set them apart from bacteria.
Domain Eukarya: Eukaryotes, organisms with cells that feature a nucleus, fall into this domain. This diverse domain includes plants, animals, fungi, and protists.
The discovery and classification of these domains reflect our understanding of the evolutionary relationships among organisms. The domain Eukarya is believed to be more closely related to Archaea than it is to Bacteria, as indicated by gene sequences. All three domains are thought to have evolved from a single common ancestor, often referred to as the last universal common ancestor (LUCA).
Overall, the three domains of life offer a framework for understanding the diversity and biological relationships of all organisms on Earth.
1. What was the independent variable in this lab? *
A. water volume
B. water mass
C. time
D. soil type
The image below shows a common blood pressure gauge.
What does this device do?
A.
measures the level of oxygen present in the blood
B.
measures the pressure of blood when the lungs expand and compress
C.
measures the electrical activity of the heart
D.
measures the pressure of blood when the heart contracts and relaxes
Answer:
measures the pressure of blood when the heart contracts and relaxes..Blood pressure Gauge, commonly known as a “sphygmomanometer,” which is a device used to measure blood pressure. Thus, option D is correct.
What is the sphygmomanometer?Every sphygmomanometer works under the assumption that when a hollow rubber air bladder-filled cuff is placed around a limb and inflated.
The pressure inside the bladder equals the pressure on the artery beneath the cuff.
An inflatable cuff that restricts blood flow and a mercury or mechanical manometer that measures pressure together make up a blood pressure.
When the heart beats, the heart muscle contracts (squeezes), propelling oxygen-rich blood into the blood arteries. This pressure is known as the systolic blood pressure.
Therefore, sphygmomanometer measures the pressure of blood when the heart contracts and relaxes.
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