A. DNA
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1.Compare the natural greenhouse effect with the human-induced process.
2.What are the greenhouse gases? Which one is the biggest concern?
3.What are scientists doing to collect data?
4.What role does the carbon cycle play in this problem?
5.What are the political and economic factors that complicate this problem?
6.Why is the study of global warming so scientifically complicated?
7.Are there skeptics of global warming? What are their arguments?
Experiments in warmer waters have reported as much as a 50% decline in biomass in habitats that experienced
A. a 6-degree Celsius decrease in water temperature.
B. a 6-degree Fahrenheit decrease in water temperature.
C. a 6-degree Celsius increase in water temperature.
D. a 6-degree Fahrenheit increase in water temperature.
Answer:
C. A 6-degree Celsius increase in water temperature.
Explanation:
Took the Module 1 Exam.
Which of the following blood vessels uses elasticity to push blood further along the bloodstream?
Arteries
Capillaries
Varicose veins
Atrioventricular node
Answer:
The answer is A. Arteries
Explanation:
The large intestine absorbs most of the ________ from the food and some vitamins and minerals.
water im [pretty sure because when i answered nutrients it was wrong
How to understand the difference from active transport and passive transport?
one way organisms interact is through competition what do organisms compete for
What is the endosymbiotic theory? (Cells)
Which does not affect the quality or pattern of cloth as it is woven on a loom?
speed of weaving
type of thread used
how the loom is threaded
In a food web, arrows poinet in just one direction beacsue the show what?
Tsunamis are caused by _______. a. underwater volcanoes b. El Niño c. underwater earthquakes d. global warming
Which of the following contain the genetic code?
1)carbohydrates
2)lipids
3)nucleic acids
4)proteins
Nucleic acids are the carriers of the genetic code. The molecules that carry and transmit genetic information in living things are called nucleic acids, specifically the deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) families. Therefore, the correct option is C.
The fundamental genetic material, DNA, is located in the nucleus of cells, while RNA is involved in gene expression and protein synthesis. Sequences of nucleotides, the constituent parts of nucleic acids, contain the genetic code. Proteins, lipids, and carbohydrates all play important roles in many cellular processes and functions within an organism, but none of them directly contain the genetic code.
Therefore, the correct option is C.
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How are natural selection and microevolution illustrated in this scenario?
The body tissue that connects the muscle to the bone is called
Answer:
The answer is: Tendons.
Explanation:
Tendons are fibrous connective tissue that joins muscles to bones. They can also attach muscles to structures such as the eyeball. Tendons serve to move the bone or structure, while the ligaments are the fibrous connective tissue that joins the bones together and generally their function is to join structures and keep them stable.
The answer is: Tendons.
There are many methods used to obtain energy for use in our daily lives. Some of these methods have possible environmental consequences to rivers, groundwater, and organisms. One type of pollution involves excess carbon dioxide being released into the air. Some of the carbon dioxide reacts with water to form acid rain. Which energy sources can release carbon dioxide and carbon monoxide waste into the atmosphere?
Answer: Coal,petroleum
Explanation:
he process that we call "burning" actually is chemical reactions with oxygen in the air. For the most part, the carbon combines with oxygen to form carbon dioxide (CO2), and the hydrogen combines with oxygen to form water vapor (H20).
Some of the carbon dioxide reacts with water to form acid rain, and the energy sources can release carbon dioxide and carbon monoxide waste into the atmosphere through the burning of fossil fuels, coal, oil, etc.
What is the significance of burning fossil fuels?Carbon dioxide, which is also considered a "greenhouse gas," and other greenhouse gases in the atmosphere trap heat from the sun but never let the heat pass through the earth's atmosphere and make the earth hot. This is caused by the combustion of fossil fuels and causes air pollution, which can be harmful to human health and the earth.
Hence, some of the carbon dioxide reacts with water to form acid rain, and the energy sources can release carbon dioxide and carbon monoxide waste into the atmosphere through the burning of fossil fuels, coal, oil, etc.
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Why does incomplete dominance not support the blending theory of inheritance?
What is combustion and how does ir affect the carbon cycle?
I only have two questions, thank you! One difference between a point mutation and a chromosomal mutation is that ____
A. A point mutation affects the DNA of more genes than a chromosomal mutation
B. A point mutation can involve a insertion or deletion, but cannot result in a frameshift.***
C. A chromosomal mutation can change the number of chromosomes in a cell.
D. A chromosomal mutation is more likely to be passed on to offspring or daughter cells.
A mutation that involves one or a few nucleotides is called ____.
A. A mutagen B. An inversion C. A point mutation*** D. A translocation Thanks so much for your help! Happy Holidays! :)
Answer:
1. The most appropriate answer would be an option C.
A point mutation refers to the mutation or change that occurs at only one or a few nucleotides of the DNA.
Usually, a single nucleotide is substituted with the wrong nucleotide due to which only a single codon is affected.
However, it can cause frame shift mutation if insertion or deletion of nucleotide takes place.
In contrast, in chromosomal mutation long segment of DNA is involved. It may involve one or more genes. It mainly includes insertion, deletion, translocation, and inversion.
In addition, chromosomal mutation can cause change in the number or sets of chromosomes such as poliploidy, aneoploidy et cetera
2. The correct answer would be C. A point mutation
A point mutation refers to the mutation or change that occurs at only one or a few nucleotides of the DNA.
When the cell excretes sodium from within, against the natural tendency of matter, it is performing
Is blood sugar regulated by positive or negative feedback?
Biologists have separated Monera into two kingdoms according to the differences between the two groups. In which classification does this separation occur?
A) Two kingdom clasification
B) five kingdom classification
C) Six kingdom classification
What is the main source of energy that drives the water cycle?
The sun is the primary source of energy that drives the water cycle. It provides the heat necessary for evaporation, the initial phase of the water cycle, and influences all subsequent stages of the cycle including condensation, precipitation, and surface runoff.
Explanation:The main source of energy that drives the water cycle is the Sun. The sun's energy warms the oceans and other surface waters, which leads to the evaporation or sublimation of liquid or frozen water into the atmosphere. This water vapor then condenses into clouds, leading to precipitation that brings the water back to Earth's surface again, completing the water cycle.
Evaporation and sublimation are critical first steps in the water cycle. These processes involve the transformation of liquid water or ice into water vapor due to the Sun’s heat.
The water, now in a gaseous state, ascends into the atmosphere where it eventually condenses to form clouds due to lower temperatures at higher altitudes. This is referred to as condensation and it's often followed by precipitation, the process where water is returned to the Earth’s surface as rain, sleet, hail, or snow.
Upon reaching the surface, the water can take several paths. It can flow on the surface, leading to surface runoff, or it can seep into the soil contributing to subsurface water flow. Some of the water ends up in rivers and streams, referred to as streamflow, and eventually makes its way back to the ocean again, completing the cycle.
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How was the the Hershey chase blender experiment conducted?
Final answer:
The Hershey-Chase blender experiment led by Hershey and Chase involved radiolabeling T2 bacteriophage DNA with 2P and proteins with 5S. They demonstrated that DNA, not protein, is the genetic material as radioactive DNA was found inside bacterial cells and the genetic information was used to produce new viruses.
Explanation:
The Hershey-Chase blender experiment was a crucial study in molecular biology, conducted by Alfred Hershey and Martha Chase, to determine whether DNA or proteins were the genetic material responsible for heredity. Hershey and Chase used T2 bacteriophage, a virus that infects bacteria, for their experiments. They grew the viruses in cultures containing radioactive isotopes: 2P for DNA and 5S for proteins, since DNA contains phosphorus but no sulfur and vice versa for proteins. The viruses thereby incorporated these isotopes into their DNA or proteins, respectively.
Two separate sets of E. coli bacteria were then infected with the radiolabeled phages. After allowing the phages to attach to the bacteria, the mixtures were placed into a blender to separate the phage coats from the E. coli cells. The mixtures were then centrifuged, so the heavier bacteria formed a pellet, and the lighter phage particles and detached coats remained in the supernatant. In the set with 5S-labeled proteins, the radioactivity was found in the supernatant, indicating that the protein did not enter the bacteria. Conversely, in the set with 2P-labeled DNA, the radioactivity was detected in the pellet, indicating that the DNA entered the bacteria and therefore was the material responsible for directing the production of new phage particles. Thus, Hershey and Chase concluded that DNA is the molecule that carries genetic information.
Select the FALSE statement below about the structure of myoglobin.
a. The O2-binding pocket of myoglobin contains several nonpolar amino acid sidechains that can interact favorably with a nonpolar molecule of O2.
b. The polypeptide of myoglobin provides a pocket for O2 to fit, and stabilizes the bound O2 via hydrogen bonding with the distal His.
c. The polypeptide of myoglobin protects the heme iron from oxidation.
d. The active site of deoxy myoglobin is 5-coordinate with a histidine occupying one axial position while the other axial position is left open for oxygen binding.
e. Myoglobin has a single polypeptide chain so it has 1o, 2o, 3o and 4o structure.
The coyote (canis latrans) is found across North America which makes it a specialist species.
true or false
its super False broooooo
Where do most earthquakes originate?
1) within Earth's core
2) along specific belts within the crust
3) randomly across the entire Earth's surface evenly spaced along the Moho interface
When errors occur in dna what activity do checkpoint controls inhibit
Some studies have indicated that our eyes naturally travel from bottom left to top right, so putting the diagonal along that path can take advantage of our eye patterns.
True ort False?
Answer:
True
Explanation:
I just got 100% on this quiz
Gradpoint
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What process powers the movement of tectonic plates?
Which of the following statements about seafloor spreading is false?
A. Continents move as the seafloor spreads along a mid-ocean ridge.
B. The oldest crust is closest to the mid-ocean ridge.
C. Magma rises through the mid-ocean ridge, forming basalt.
B. The oldest crust is closest to the mid-ocean ridge.
Explanation;Seafloor spreading refers to the process by which new oceanic crust forms along a mid-ocean ridge and older oceanic crust moves away from the ridge. Seafloor spreading occurs at the mid-oceanic ridge where the divergent boundaries cause two plates to move away from each other resulting to the spreading of the sea floor.As the divergent plates move apart, new materials wells up and then cools at the edge of the plates. Seafloor spreading is important as it helps explain the continental drift in support of the theory of plate tectonics.When bacterial cells participate in conjugation, the bridge between the cells through which dna passes is