Answer:
Edwin Drake was the first person to strike oil in America. His world-famous well was drilled in Titusville, PA, a small town in Crawford Count
Answer:
Drake met stockholders of the Pennsylvania Rock Oil Company, which claimed a lease on land near Titusville, Pennsylvania, where oil had been gathered from ground-level seepages for medicinal uses. The company hoped to make money selling the oil for lighting, and to this end the stockholders sent Drake to Titusville to assess the viability of the enterprise. Letters of introduction to businessmen in the area referred to Drake as “Colonel,” and for the rest of his life he was known as Colonel Drake. After Drake returned to New Haven with a favourable report, the New Haven stockholders formed a new company, the Seneca Oil Company, sold some stock to Drake, and sent him back to develop the site.
Explanation:
HELPPP
4. What two variables are necessary to calculate population growth?
birth rate and death rate
Ogrowth rate and carrying capacity
Obirth rate and growth rate
growth rate and death rate
Answer:
Birth rate and death rate
Explanation:
Birth rate will decrease and death rate will fluctuate and they will balance the other out.
(ONLY ANSWER IF YOURE GOOD AT SCIENCE, NO SPAM!!) Bacteria play many roles in nature. How do they affect us? From the list below, select all of
the choices that correctly describe roles of bacteria.
Select all that apply.
A aiding with digestion in the human gut
helping plants obtain nitrogen
с
breaking down decaying matter
D
causing human disease
E producing true tissues
F
forming true organs
being genetically engineered to produce products
Answer:
A, C, D (as far as I know, however I might have missed something or added something)
an example of a biotic factor in an ecosystem is
Answer:
abiotic factors are those which are non-living like physical conditions and chemical agents in the ecosystem.
Explanation:
Definition for chemical formula.
What is the main function of the cell membrane?
Answer:
It controls the movement of dissolved substances in and out of the cell.
Explanation:
It is said to be semi-permable
What was Hans Molisch’s hypothesis?
Answer:
Molisch’s test is a chemical test which is used to check for the presence of carbohydrates in a given analyte. This test is named after Czech-Austrian botanist Hans Molisch, who is credited with its discovery. Molisch’s test involves the addition of Molisch’s reagent (a solution of ∝-naphthol in ethanol) to the analyte and the subsequent addition of a few drops of concentrated H2SO4 (sulphuric acid) to the mixture.An object that can be easily formed into any shape is
Answer:
A liquid, and example is water, since it can form into the shape of its container.
Explanation:
Answer:
the answer is clay,for sure
Which of the following IS NOT a function of the skeletal system?
O Protecting the body from pathogens
O Producing blood cells
O Storing minerals
O Providing attachment
Answer:
A) Protecting the body from pathogens
47.
Base your answer to the question on the diagram below and on your knowledge of biology. The diagram represents
interactions between organisms in an ecosystem.
Species
D
Species
E
Species
A
Species
с
Species
B
Which statement correctly describes an interaction that contributes to the stability of this ecosystem?
A. Species E is not affected by the activity of species A.
B. Species B returns compounds to the environment that may later be used by species C.
C. Species C recycles nutrients from species B and D to obtain energy.
D. Species D is directly dependent on the autotrophic activity of species B.
An interaction that contributes to the stability of this ecosystem is: B. Species B returns compounds to the environment that may later be used by species C.
What is an ecosystem?An ecosystem simply refers to a biological community that is made up of species of living organisms (biotic factors) and the physical environment (abiotic factors) in which they exist and all interact.
Based on the schematic diagram shown in the image attached below, we can logically deduce that an interaction which contributes to the stability of this ecosystem is that Species B returns chemical compounds to the environment that may later be used by species C.
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What reacts with water in the atmosphere to form carbonic acid to make regular rainfall slightly acidic?
A: Carbon Dioxide
B: Lead
C: Helium
D: Argon
the answer is caebin diaxode
Answer:
A. carbon dioxide
Explanation:
How could you tell whether a given sequence was DNA or mRNA?
Was it easier to decode messages written in DNA or in mRNA sequences?
Which cellular enzymes or machines are you imitating when you "transcribe" DNA into mRNA?
Which cellular enzymes or machines are you imitating when you "translate" mRNA into a chain of amino acids?
What else needs to happen in a eukaryotic cell between the processes of transcription and translation?
In step 5, how did different mutations affect the amino acid sequence that was encoded?
Explain why some single nucleotide mutations affect an amino acid sequence and some single nucleotide mutations do not.
Explain why nucleotide insertions and deletions affect the amino acid sequence so profoundly.
Why could your secret message include only 20 of the 26 letters of the alphabet?
Did you find that it was difficult to work with only these letters?
Answer:
1. You could tell whether a given sequence was DNA or mRNA because of Uracil and Thymine base differences in both
2. Answers may vary up to you, but messages are easier to decode written in DNA
3. You are imitating RNA polymerases.
4. You are imitating RNA polymerase once again
5. The RNA strand is delivered to start the process of translation; RNA>>Protien
6. Different mutations affect different amino acid sequences because they alter the code which makes it un-easy to decode the sequence
7. Some single nucleotide mutations affect an amino acid sequence depending on what mutation it is causing. Some single nucleotide mutations do not do this because they aren't as severe and they don't cause codons to mix up.
Answer:
1
ADNA sequences use the nucleotides A, T, G, and C, while mRNA sequences use the nucleotides A, U, G, and C.
B It was easier to decode the messages written in mRNA sequences because these sequences could be translated directly into the amino acid sequence.
2
A The cellular enzyme that carries out transcription is RNA polymerase.
B The cellular machine that carries out translation is the ribosome, which is composed of both rRNA and ribosomal proteins.
C In a eukaryotic cell, an mRNA transcript often has additional untranslated regions and a poly-A tail. A eukaryotic mRNA transcript would need to be transported from the nucleus to the cytoplasm before it could be translated.
3
A Some amino acids are encoded by several codons. If a single nucleotide mutation still encodes for the same amino acid, the resulting amino acid sequence would not be affected. This happens most often with nucleotides in the third position of a codon.
B If a single nucleotide mutation changes the amino acid encoded, the resulting amino acid sequence would be affected. This happens most often with nucleotides in the first and second positions of a codon.
C Nucleotide insertions and deletions cause frameshift mutations, which change the reading frame of translation and will encode completely different amino acids from that point forward.
4
A There are only 20 canonical amino acids, so the letters B, J, O, U, X, and Z are not used as one-letter codes.
B It was a little difficult to not use the letters B, J, O, U, X, and Z at first, but there are messages to write without these six letters.
Explanation:
Use the drop-down menus to complete each sentence.
А
is an organism that eats other organisms to gain energy, it is also called
A
v is an organism that makes its own food; it is also called
v is an organism that breaks down waste and dead organisms.
А
Answer:an organism who make its own food is autotrophic
Explanation:
Which statement is true about DNA? (1 point)
name the five senses and their sense organs
Answer:
The Senses are:B. What are two reasons that this layer can contain so much water vapor? (2 points)
The two reasons that this layer ( Troposphere ) will contain much water vapor are :
AltitudeAir compressibility The layer of the atmosphere with the most water vaporThe troposphere contains so much of the water vapor present in the atmosphere due to gravity and the compressibility air. As we move higher above the earth surface, the density of the atmosphere decreases rapidly. causing the majority of water vapor to be retained at the troposphere. which is lowest part of the atmosphere closest to the earth surface.
Hence we can conclude that The two reasons that this layer ( Troposphere ) will contain much water vapor are : Altitude and Air compressibility.
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GUYS PLS HELP , 20 POINTS
Which of the following describes initial data analysis?
clear hypotheses about the data are tested
concerned with avoiding answering the original research question
no clear hypothesis is stated before analyzing the data, and the data is searched for models that describe the data well
analyses aimed at answering the research question are performed as well as any other relevant analysis needed to write the first draft of the research report
Answer:
no clear hypothesis is stated before analyzing the data, and the data is searched for models that describe the data well
this is the answer
What do the depositional plains and the erosional plains have in common
In both erosional and depositional plains, there is the movement of soil from one point to another.
What is an erosional plain?An erosional plain is formed when rock moves unto a higher area. It is different from depositional plains in which debris move away.
Hence, in both erosional and depositional plains, there is the movement of soil from one point to another.
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What is the largest source of water on Earth?
A.Seawater
B.Freshwater
C.Groundwater
D.Frozen water
Groundwater is one of the largest source of water on Earth.
The food web models a community along the coast of Alaska. Which
organism in the food web is a carnivore?
bald eagle
sea otter
sea gul
sea urchin
fish
mussel
rat
rock ptarmigan
zooplankton
kelp
phytop ankton
plants
O A. Phytoplankton
O B. Rock ptarmigan
O C. Zooplankton
O D. Sea otter
Answer:
Sea otter
Explanation:
The rest of the organisms on that answer list are too small to be carnivores, Hope this helps.
ONLY ANSWER IF YOU KNOW!! NO SPAMS :)
Answer:
The answer is Mycellium.
Explanation:
Hope this helps! :)
Answer:
D
Explanation:
I'm pretty sure this is the answer
(Love your pfp btw)
(plate tectonics) HELP PLEASEE ILL GIVE BRAINLIEST
Answer:
Plate tectonics is the theory that Earth's outer shell is divided into large slabs of solid rock, called “plates,” that glide over Earth's mantle, the rocky inner layer above Earth's core. Earth's solid outer layer, which includes the crust and the uppermost mantle, is called the lithosphere.
The picture shows a scientist collecting data from an ice core: What kind of data can be collected from ice cores to learn about past climates?
A. humidity
B. air pressure
C. amount of carbon dioxide in the air
D. ocean surface temperature
Ice core can tells various information regarding the atmosphere. It can reveal the temperature, precipitation, and other atmospheric conditions. Here in the image, the scientists can learn about the ocean surface temperature, i.e., option D.
What is an ice core?Ice cores are ice-drilled cylinders made from ice sheets and glaciers.
They are capsules that are frozen and allow scientists to reconstruct climate far into the past.
It can be used to detect the ocean surface temperature.
Thus, the correct option is D.
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Surface weather map
Please help
Answer:
the file is below
Explanation:
which one of these animals has the lowest fertility of offspring?
a) insects
b) worms
c) fish and aquatic animals
b) mammals
Answer:
I think it is Mammals
am only 85% sure of the answer am giving you
Which situation does NOT describe a function of the reproductive system?
ensures species survival
regulates the menstrual cycle
allows sperm and eggs to combine
Answer:
regulates the menstrual cycle
Explanation:
The other 2 answers are apart of the reproductive system
Explain why clouds are more likely to form at higher elevations. (Use the terms relative humidity and dewpoint in your answer)
Answer & Explanation:
At higher elevations, water condenses from the air and produces clouds, which often blanket lofty peaks and completely obscure them. As the clouds get saturated with moisture, rain and snow fall. The precipitation, when combined with the strong winds, results in frequent stormy weather.
Question 9 of 10
Sound wave A has a higher pitch than sound wave B. What must also be true
of these two waves?
O A. Wave A has a higher frequency than wave B.
B. Wave A has a lower frequency than wave B.
C. Wave A is softer than wave B.
O D. Wave A is louder than wave B.
Answer:
wave A has a higher frequency then wave b
Explanation:
test
The true statement regarding the two sounds is Wave A has a lower frequency than wave B. Thus, option "B" is correct.
What is the pitch of a sound?The pitch of a sound is the sensation of the sound frequency.
A high pitch sound corresponds to a high-frequency sound wave and a low pitch sound corresponds to low frequency.
Sound of the same amplitude has the same loudness.
Thus, option "B" is correct.
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name the type of inheritance shown by thes plants
Answer:
Inheritance that can happen from these flowers (red and white) can make pink flowers by incomplete dominance. Where they appear to blend together by the definition of incomplete dominance.
ur welcome :)
correct me if i’m wrong
brainliest please?
what will happen to the temperature in your decomposition layer if decomposition actually occurs in your ecocolumn?
A: Stay the same
B: Increase
C: Stay exactly 75 degrees Fahrenheit
D: Decrease significantly
Explanation:
the temperature of that layer will increase.
Answer the following question in the photo
Answer:
1.The father is able to roll the tongue because the allele for the ability to roll the tongue is dominant over the allele for the inability to roll the tongue
2.(BO) Father's Genotype
3.A maternal effect is a situation where the phenotype of an organism is determined not only by the environment it experiences and its genotype, but also by the environment and genotype of its mother.
4.The mother's genotype is AO
5.Within an individual organism, the specific combination of alleles for a gene is known as the genotype of the organism, and (as mentioned above) the physical trait associated with that genotype is called the phenotype of the organism
(the physical trait associated with that genotype)