Which two characteristics describe a good index fossil?
A. Having existed for a very long time
B. Being very rare
C. Being found in many regions
D. Having an unusual shape
Answer:D. And C.
Explanation:
I did it
The characteristics that describe a good index fossil are :
Having existed for a very long timeHaving an unusual shape.What is a Fossil ?Fossil refers to the remains of dead plants and animals that have accumulated over years or centuries which can be use as fuel, researches, or monuments.
Therefore, The characteristics thatdescribe a good index fossil are :
Having existed for a very long timeHaving an unusual shape.Learn more about fossil below
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Which of the following resons for absence of life on the gas giants is a direct result of their distance from the sun? A.they have no soild surfaces. B. Their atmosphere have too little oxygen. C. Their gravities are too strong. D. They are too cold to surpport life.
Answer:
D
Explanation:
Because the Gas Giants are the farthest section of planets away from the sun, they are too cold to support life.
chromosomes are in pairs, what else comes in pairs
Answer:
Humans have 23 pairs of chromosomes--22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X and Y. Each parent contributes one chromosome to each pair so that offspring get half of their chromosomes from their mother and half from their father.
Explanation:
(Sorry, I'm not sure)
6. why is specialization useful in biology
What will be the results in the F2 generation after a monohybrid cross?
all recessive traits
3/4 dominant and 1/4 recessive
all dominate traits
1/3 dominant and 2/3 recessive
Answer: [tex]\dfrac34[/tex] dominants and [tex]\dfrac14[/tex] recessive.
Explanation:
Mendel's monohybrid cross is definied as
a genetic combination of two homogeneous genotypes.One is dominant(TT) to other (tt-recessive).Result in F1 generation: 4 dominant(Tt), 0 recessive (tt)
Result in F2 generation: 3 dominant(TT, 2Tt), 1 recessive (tt)
[If one T is present then we call it Tall (Donimant effect), if none then we call it dwarf]
The results in the F2 generation after a monohybrid cross: [tex]\dfrac34[/tex] dominants and [tex]\dfrac14[/tex] recessive.
Which describes the two ways that energy is measured?
in convection and in temperature
in temperature and in radiation
in radiation and in convection
in wavelength and in temperature
Answer:
The answer is D. In wavelength and temperature
Explanation:
can I have brainiest Please
Energy is the ability to do work, and it is measured in two ways: in temperature and in wavelength. Temperature is a measure of the average kinetic energy of the molecules in a substance, and is typically measured in degrees Celsius or Kelvin.
What is Wavelength?Wavelength, which is commonly expressed in nanometers (nm), is a measurement of the separation between two adjacent points in a wave pattern.
The average kinetic energy of the molecules in a substance is measured by thermometers to determine temperature. This is accomplished by measuring a material's thermal expansion during heating or contraction during cooling.
The molecules have more kinetic energy at higher temperatures. Temperature is an important factor in convection, which is the transfer of heat energy from one place to another through the movement of fluids or gases. Wavelength is measured with spectroscopy, which is the study of the interaction of light with matter.
Spectroscopy is used to measure the wavelength of light, which is the distance between two successive points in a wave pattern. Wavelength is an important factor in radiation, which is the emission of energy in the form of electromagnetic waves. Radiation is the main way that energy is transferred from one place to another in space.
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4. Write the building units of the below given nutrients.
a. Carbohydrates -
b. Proteins -
c. Nucleic acids -
A. Carbohydrates
Explanation:
If 10 glucose molecules enter the Krebs Cycle, how many possible molecules of ATP can be produced?
Answer:
20 molecules of ATP
Explanation:
Krebs cycle or also known as Tricarboxylic acid cycle (TCA) is the second stage of aerobic cellular respiration which occurs in the mitochondria. In the kreb cycle, pyruvate, which was synthesized in the first stage of cellular respiration (glycolysis) is broken down into carbon dioxide (CO2).
However, in the krebs cycle, two (2) ATP molecules is produced per glucose molecule that enters cellular respiration. Hence, according to this question, If 10 glucose molecules enter the Krebs cycle, (2 × 10) = 20ATP molecules will be possibly produced.
Answer:
20 molecules of ATP
Explanation:
Have a good day :)
The acids on the pH scale run from
0-14
1-100
0-6
8-14
Who discovered electrons?
Answer:
J.J. Thomson
Thomson was a physics professor at Cambridge University in the UK. He placed cathode tubes in electric and magnetic fields.
Answer:
J.J. Thomson
Explanation:
He decided to be curious and find out about it. Thomson was also a professor at Cambridge University in the UK.
What is the first thing you do if you accidentally spill a chemical?
A.Clean it up
B.Pour water on it
C.Walk away and potentially risk someone else getting hurt
D.Tell the teacher
Answer:
D
Explanation:
because it could be dangerous
In the Florida map shown below, use the law of superposition to determine which rocks are youngest?
A
B
C
D
Which of these scenarios is an example of natural selection?
A.) Farmers crossbreed two types of cows to produce a breed of cow that has high-quality beef and can tolerate a hot climate.
B.) Dogs of the same breed and having a desirable coat color are bred with one another to produce more puppies with that same coat color.
C.) Wolves with thick coats survive a cold winter more than wolves with thin coats. Thick-coated wolves have more offspring the following spring.
D.)People kill rattlesnakes that rattle when approached by humans, but people do not kill rattlesnakes that remain silent. The quiet snakes survive and breed.
Answer:
C
Explanation:
Natural selection is when an animal with a better trait survives and reproduces. C is the best answer.
The scenarios that are examples of natural selection are People kill rattlesnakes that rattle when approached by humans, but they do not kill rattlesnakes that remain silent, the quiet snakes survive and reproduce; this is option D.
What is the role of natural selection in the evolution process?Natural selection has numerous implications because it is the driving force behind evolution and the reproduction of individuals with advantageous traits, which leads to this natural selection process and an increase in the frequency of these traits in the population over time.
Hence, the scenarios that are examples of natural selection are People kill rattlesnakes that rattle when approached by humans, but they do not kill rattlesnakes that remain silent, the quiet snakes survive and reproduce; this is option D.
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Write Three food chains with at least 3 links
Grass-> Cow -> Human
Grass -> Bunnies -> Foxes
Mice-> Snakes -> Hawks
Sartre asserts that we can rely only on those things within our power of control and on the sum of possibilities that made our actions possible, there are other people,
however, who have the same freedom, and thus we cannot control them "Can you cite your personal experience, an instance, or a situation that you're into that you don't
have control of your situation?
Answer:
Global is a better source of energy to help for the future but the most likely need for a better deal to help the government with a the market to help build the up for the future and hopefully we can have a better solution for the next few weeks before we
Explanation:
Gdysgs udhdhdvd the on 66666666 will have 3rd of March off and the other one is going to be the first thing I want to say to you and the other one you have in the past and have been working with in the past and have been working with in the past and have been working with in the past and have been working with in the past and have been working with in the past and have been working with in the past and have been working with in the past and have been working with
6 and I have been working g with the other people who worked in various projects and I have been working with in the past and have been working with in the past and have been working with in the past
How can recycling impact the environment? A) It uses less energy to make something from recycled materials than from new materials. B) It increases the amount of landfill space needed. C) It uses more natural resources than new materials do. D) It increases the need for mining, creating jobs.
Answer:
A) It uses less energy to make something from recycled materials than from new materials.
Explanation:
When a recycled material is used to make a new product, it conserves energy because the recycled materials have already been processed once; so making something from it for the second time uses less energy-intensive than the first. For example: Making new aluminium from old products uses 95% less energy than making it from scratch.
Hence, the correct answer is "A)"
What does epithelial tissue do?
write this the asnwer in a simple way
Answer:
Epithelial tissues are general throughout the body. They form the covering of all body surfaces.
Explanation:
(please mark brainliest if you can)
Answer:
They perform a lot of functions such as protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.
Explanation:
Son cuando los restos orgánicos son cubiertos por el suelo y con el tiempo se degradan dejando espacio en la roca que los confina natural mente
Answer:
Podrían ser fósiles pero puede que no ...
PLEAS HELP ME I WILL GIVE BRAINLIEST I NEED AN EXPLANATION TOO PLEASE
Answer:
Producers
Explanation:
they get their energy directly from sunlight and inorganic nutrients.
PLEASE HELP I WILL MARL BRAINLIEST AND I NEED AN EXPLANATION PLEASE
Answer:
Ocean and atmosphere
Explanation:
Because when the sea evaporates it goes to the atmosphere creates cloud clouds get heavier and rain comes down
what is the three types of neurons?
Answer:
Sensory neurons- they are activated when the senses receive stimuli from the environment
Motor neurons- transmit impulses from the brain and spinal cord to the muscles, glands, and organs in the body
Interneurons- transmits impulses between sensory and motors neurons
Hope this helps:)
How the Law of Conservation of Matter and Energy is conserved during these processes based on the numbers of molecules of the reactants and products?
Explanation:
The law of conservation of matter states that in any given system that is closed to the transfer of matter, the amount of matter in the system stays constant.
The law of conservation of matter says that in chemical reactions, the total mass of the products must equal the total mass of the reactants.
PLEASE IS DUE IN 5 minsss
Answer:
Distance and Direction
Explanation:
Displacement includes distance and direction of the stopping point from the starting point. Displacement measures the distance and direction between the starting and stopping points.
(hope this helps :P )
Shabbir added an unknown substance to a bottle of water and shook the bottle until the two substances were combined. Then he set the bottle aside for 30 minutes. When he came back, the unknown substance had settled on the bottom of the bottle, and the water had risen to the top. Based on Shabbir’s experiment, what can you tell about the unknown substance? A It is hydrophilic. B It is a type of oil. C It is hydrophobic. D It is a homogeneous solution.
Answer:
C. it is hydrophobic
Explanation:
hydrophobic means failing to mix with water, and this is the exact situation described. if i need to elaborate more tell me
In the process of choose, dna is used as a template for making another type of nucleic acid called choose. The process begins when the enzyme choose binds to a region called the choose
Transcription is a process of central dogma in which genetic data from DNA is copied to another nucleic acid called messenger RNA.
All the cells make the copy of RNA from the DNA. This copy of RNA provides the data for further processing into proteins.
The answer for the blanks are:
1. transcription
2. RNA
3. RNA polymerase
4. promoter
The reason for the blanks are:
Copying information from DNA into RNA is called transcription.The enzyme required in the process is RNA polymerase which copies DNA sequences into the RNA sequences. Three different types of RNA polymerase play an important role in Eukaryotic transcription.The process only takes place when the RNA polymerase adheres to the promoter array. Promoter sets the path of the process.To learn more about transcription follow the given link:
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Which statement describes the process of photosynthesis shown in the equation below
A.Chemical energy from sugar is changed into light energy.
B.Sugar is obtained from the environment.
C.Organic molecules are changed into inorganic food molecules.
D.Light energy is changed into the energy of sugar.
could you please show me the equation?
Explanation:
A scientist performs an experiment to see how plants respond to acid rain. He places the water plants in water of varying pH measurements. The pH levels are 2.5, 6.0, 7.0, and 9.0. Each day, he measures the health of the plants by counting the number of leaves on the plant. The plants used in this experiment typically grow in water at a neutral pH.
Why was only one variable tested in this experiment?
The scientist tested one variable to determine what caused the number of leaves to change.
It just happened that way; you can test as many variables as you want.
The scientist ran out of materials so he tested only one variable.
The scientist tested two variables.
Answer:
The scientist tested one variable to determine what caused the number of leaves to change.
Explanation:
how did different animal colors arise in the first place
Answer:
Direct production occurs through the presence of visible coloured cells known as pigment which are particles of coloured material such as freckles. Indirect production occurs by virtue of cells known as chromatophores which are pigment-containing cells such as hair follicles.
Explanation:
The cover of high-elevation clouds in 2002 was
closest to which of the following?
A. 5.5 okta
B. 4.0 okta
C. 3.0 okta
D. 2.5 okta
Answer:
B. 4.0 Okta
Explanation:
Okta is a measurement of cloud elevation in metrology. NASA used this metric to identify the cloud elevation. The cloud elevation reached to 4.0 okta during the year 2002. High elevation ecosystem is vulnerable. The change in okta does not produces new substance and the elevation of cloud is changed.
High elevations clouds are located at a height of 20,000 feet. They are high above where the temperature is very low and are composed of ice crystals and appears white.
The correct answer is:
Option B. 4.0 Okta
This can be explained as:
A unit of measurement of cloud extension is called okta. The amount of cloud cover at a given place in meteorology can be defined by okta.This is widely used by the meteorology department of NASA.During 2002, the elevation of clouds reached 4.0 okta.This high value of okta can make the ecosystem vulnerable.The elevation in okta value does not affect the production of any new substance.Therefore, the value was 4.0 okta in 2002.
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Identify the cavity that develops entirely from the mesoderm.
Answer: the only one on the left
Explanation:
i took the test and got an 100
your just going have to trust me