Answer:
The heart has four chambers: two atria and two ventricles.
Explanation:
The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle. The right ventricle pumps the oxygen-poor blood to the lungs. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle.
Answer:
The four chambers of the heart are the Right atrium,Left atrium,Right ventricle and Left ventricle.
Explanation:
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In the diagram of the plasma membrane shown below, which structures are indicated
by letters A and B?
Answer:
A - proteins; B - lipids
If today is Monday and it is a 1st quarter moon, what phase will it be on Thursday
Answer:
Saturday
Explanation:
because
what general type of mutation has the greatest effect on the protein produce
Answer: The most serious of these mutations will be the insertion of 2 bases. Becasue the genetic code is read in triplets, a 2 base insetion will alter the reading frame of the code causing a frameshift mutation meaning every amino acid after the site of the mutation will be incorrect.
One day you experience violent thunderstorms followed by a few days of colder weather. Which type of front most likely moved through your area? occluded front stationary front warm front cold front
Answer:
d
Explanation:
The whether occurrence as described in the question is caused by the cold front.
What is a front?In discussing about weather, a front refers to a region in which there is a transition between air masses on the earths surface. The occurrence of various types of front is the reason behind different types of whether patterns.
The violent thunderstorms followed by a few days of colder weather is caused by a cold front.
Learn more about whether fronts: https://brainly.com/question/16357973?
A pine tree is a conifer. What type of plant is a conifer?
an
angiosperm
a gymnosperm
Answer: A subset of Gymnosperms
Explanation: They are cone-bearing seed plants
In a paragraph below, explain the definition of biotechnology and cite at least three examples of it. Also, explain why it is a controversial field of science.
Answer:
Biotechnology is a branch of science that deals with technology by utilizes biological systems, living organisms, or parts of this to develop or create products with the goal of human welfare.
During brewing and baking bread yeast are used to produce alcohol are examples of processes that fall within the concept of biotechnology, Genetically modified orgnisms and crops are also product of the biotechnology. The insulin production also an example of this process.
People consider use of biotechnology unethical to produce genetically modified organisms or crops and cloning is considered as against the law of nature.
What is a molecule in your own words?
Answer:
A molecule is two or more atoms bonded together to form a single chemical entity.
Why is it important that courts create the expectation that business will be
conducted fairly?
Build the hierarchy of Federal Courts below:
Answer:
Supreme Court (top)
Courts of Appeal (middle)
District Courts (bottom)
Explanation:
alfred hershey and martha chase designed an experiment to determine the chemical makeup of griffith's transforming principle. define the term bacteriophage and explain why this organism was a good choice for this particular experiment. describe the procedure of the experiment using the terms bacteriophage, DNA, and proteins in your answer. Describe the results of the experiment and connect them to hershey and chases conclusion
Answer:
Bacteriophages (phages) are viruses that infect only bacteria and do not infect mammalian or plant cells. Phages are ubiquitous in the environment. Phages or bacteriophages were chosen as a model system for their simplicity, as they only contained protein-coated nucleic acid. Alfred D. Hershey and Martha Chase (who were part of the bacteriophage group) in 1952 studying the infection of the bacterium Escherichia coli by the T2 phage show that the information definitely resides in the DNA. They used phage with either [32P] -labeled DNA or [35S] -labeled proteins to infect the bacteria. Immediately afterwards, they centrifuged the sample so that the infected bacteria remain in the pellet and the virus capsids (proteins) remain in the supernatant. [35S] is found in the supernatant, whereas [32P] is found in bacteria. After one cycle of infection, it was observed that when phage labeled in the [35S] proteins were used, only 1% of the radioactivity was incorporated into the progeny. But when phages were [32P] labeled, more than 30% of the radioactivity was in the progeny. They showed directly that what is transmitted from one progeny to another is the DNA and not the proteins, despite having first "diluted" in a bacterium.
Explanation:
Bacteriophages are viruses that infect bacteria in a specific way. Bacteriophages, like other known viruses, are found in an intermediate zone between living organisms and inert matter. Bacteriophages bind to the host pathogenic bacterium, introduce their genetic material, replicate inside it and destroy it. Hersey, along with his assistant Martha Chase, used phages because they knew that T2 phages were made up of 50% proteins and 50% nucleic acids and that phages entered bacteria and reproduced. As the progeny carried the same infection traits, the genetic material of this had to be transmitted to the offspring, but the mechanism was unknown. These scientists carried out an experimental work with the T2 virus, a bacteriophage that infects the bacterium Escherichia coli, which it reproduces by attaching itself to the outer wall of the bacterium, injecting its DNA into it where it replicates and directs the synthesis of the phage's own proteins. Phage DNA is encapsulated within proteins and produces phages, which lyse or disrupt the cell and release phage from progeny. They infected a culture of bacteria with radioactively labeled phages: the protein coat with sulfur (35S) and its DNA with phosphorus (32P). After infection, they separated the phages from the bacteria by violent shaking using a mixer (hence the name of the experiment). By centrifugation the much smaller phages remained in the supernatant and the much larger bacteria in the pellet. 85% of the radioactivity corresponding to DNA appeared in the pellet and 82% of the protein in the supernatant. This result supported the idea that DNA was the only component of the bacteriophage that penetrated the interior of the bacteria and, having the ability to form new phages, constituted the genetic material.
in 2008, engineers at nasa developed the Fermi gamma ray telescope. gamma rays come from the most extreme places in the universe. NASA is studying them because scientists want to learn more about environments in the universe that make gamma rays. this includes objects such as exploding stars. the photograph below is an image taken using the Fermi gamma ray telescope. using the information above, along with your knowledge of the electromagnetic spectrum column where should the Fermi going rate telescope be placed to enable the highest quality images to be recorded by this telescope? A. orbiting in space somewhere outside earth's atmosphere. B at the top of a tall mountain away from all sources of light pollution. C any area on Earth that will allow enough room for a large satellite dish. or D. two opposite locations on earths surface are required, including the north and south pole.
I’ll mark brainliest!
Answer:
B
Explanation:
*WORTH 12 POINTS * Punnett squares show all of the following except __________.
A. all of the possible traits an organism can have
B. the possible outcomes for the genotype of an offspring
C. the possible outcomes for the genotype of an offspring
D. the genotype of the father for a specific trait
Answer:
D
Explanation
Because you are attempting to find out about the offspring not the parents.
Which are true about changes in carbon dioxide in the Earth's atmosphere since 1860? Select the two correct answers.
A. The increases in carbon dioxide are caused by human activity.
B. The increases in carbon dioxide can be explained by the Milankovitch cycle.
C. The rate of change in carbon dioxide is exponential.
D. The changes are triggered by a new interglacial period.
The true statements about changes in carbon dioxide in the Earth's atmosphere include:
The rate of change in carbon dioxide is exponential. The increases in carbon dioxide are caused by human activity.What is Carbon dioxide?This is a gas which is found in the atmosphere and it is what we exhale when breathing and used by plants during photosynthesis.
The changes in the gas in the Earth's atmosphere since 1860 is as a result of the factors mentioned above.
Read more about Carbon dioxide here https://brainly.com/question/1016850
Give an example or describe how WATER QUALITY can be impacted by the Water Cycle in an Aquatic Environment
Answer:
the water cycle can cause some waters that come from a polluted source to be cycled into aquatic enviroment lowering life quality for the inhabitants. at least i think so
Explanation:
Which carries information by copying an original sound?
analog signal
digital signal
volume
frequency
Answer:
Analog signal ..............
Answer:
analog
Explanation:
Why are seismic waves considered
mechanical waves?
A. They must travel through a medium, such as
the bedrock of the Earth.
B. They will only travel through empty space.
C. They travel in circles.
D. They do not require a medium.
Answer:
The correct answer is - option A.
Explanation:
The seismic waves are the waves that are the result of an explosion or the breaking of the rock within the earth. In other words, when these explosions or breaking cause an energy transfer within the earth are seismic waves. Seismic waves require a medium to travel and normally it is the earth.
The bedrock of earth is a great example of a medium for traveling these waves that make it a mechanical wave. Earthquake is the result of such waves.
Explain how spirogyra is also called green algae reproduces in water.
Answer: Spirogyras are filamentous green algae, named for their spiraling chloroplasts. Each cell of the filaments features a large central vacuole, within which the nucleus is suspended by fine strands of cytoplasm
Explanation:
What should be the goals of managing forests?
an
Which of the following is the amplitude
of this wave?
B. B
A. A
C. C С
D. D
29. A teacher presented the two models below to the dass. The models represent a eukaryote and prokaryote cell. The teacher asked the students to label the structure of each cell that contains the genetic code and
tell where it is located.
structure C, located in the cytoplasm in Cell A and structure C, located in the cytoplasm in Cell B
structure H, located in the cytoplasm in Cell A and structure A, located in the nucleus in Cell B
structure C, located in the nucleus in Cell A and structure C, located in the cytoplasm in Cell B
structure H, located in the cytoplasm in Cell A and structure A, located in the cytoplasm in Cell B
Answer:
C. structure C, located in the nucleus in Cell A and structure C, located in the cytoplasm in Cell B
Explanation:
This question contains images that depicts an eukaryotic cell (animal) and a prokaryotic cell (bacteria). According to the question, a teacher asked the students to label the structure of each cell that contains the genetic code (DNA) and tell where it is located.
In an eukaryotic cell, the genetic material (DNA) which contains the genetic code is located inside a well defined membranous structure called NUCLEUS while the genetic material in a prokaryotic cell is found naked in a region of the cytoplasm called NUCLEOID as they lack a membrane-bound nucleus. Based on this explanation;
- Structure C is the genetic material (DNA) which contains the genetic code of cell A (eukaryotic cell), hence, the genetic code of cell A is found in structure C, which in turn is located in the centrally-placed NUCLEUS.
- Structure C is the genetic material containing the genetic code of cell B (prokaryotic cell), hence, the genetic code of cell B is found in structure C, which in turn is located in the CYTOPLASM.
what kingdom does eubacteria belong to
Answer:
Like archaebacteria, eubacteria are complex and single celled. Most bacteria are in the EUBACTERIA kingdom. They are the kinds found everywhere and are the ones people are most familiar with. Eubacteria are classified in their own kingdom because their chemical makeup is different.
Explanation:
Global climate has changed in the past due to ___ and ____ .
Answer:
The answer of this question is continent and oceans.
are cell membranes in plant or animals or both?
Answer:
Both
Explanation:
Answer:
Cell membranes are in both Plant and Animals cells.
Explanation:
Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane, they both give the plant structure and support. Animal cells simply have a cell membrane, but no cell wall.
please answer!!
what would the offspring of a chicken look like if feather color were inherited through incomplete dominance?
Are mitochondria found in both plant and animal cells?
1. Which of the following is NOT correct? PLEASE HELP I WILL MARK BRAINLIEST
A) A population is all the organisms of the same species that live in the same area
B) A community is all the populations of different species that live together in the
same area
C) A population is all the populations of different species that live together in the same area
D) An ecosystem is all of the living and nonliving things in an ares
a population is all the populations of different species that live together in the same area is the incorrect one
Change to hypothesis
What effect does the water temperature have on solution rate?
As the temperature of the water increases so does the solution rate as the atoms gain more energy therefore there will be more frequent collisions.
what are the two biggest planets on earth
Answer:
️ ️
Explanation:
what happens to most solar radiation when it gets to earth??
Answer:
Most of the solar radiation is bounced off of earth´s atmosphere.
Explanation:
Due to earth´s magnetic field, we are able to be protected from most of the solar radiation the sun emits.