Answer:
23
Explanation:
At the end of meiosis-I, two daughter cells are formed having half the number of chromosomes present in diploid cell undergoing meiosis. Each cell has half the number of chromosomes present in the diploid cell.
Genetically identical armadillos were kept in the same controlled environment from birth and provided the same diet. Even though the animals were genetically identical and shared the same mother, they showed variations in their phenotypes that were beyond the normal range in expression.
Based upon today’s knowledge of genetics, which explanation describes the most likely cause of the phenotypic variations?
Phenotypic variations in genetically identical organisms that grow in the same controlled environment may be due to mutation.
MutationThis refers to a sudden change to the DNA sequence of living organisms.
When the DNA base sequence of organisms changes, the effect is shown in the morphology of organisms.
For organisms that are genetically identical but grow in different environments, phenotypic variations might exist as a result of environmentally acquired traits during the struggle to adapt to their environments.
In the same environment, however, genetically identical organisms are not expected to be phenotypically different, unless a mutation to the DNA of one has occurred.
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Which two systems are most likely interacting when a person experiences itching caused by a skin irritant?
Answer:
circulatory and excretory
Explanation:
The two systems that are most likely to interact when a person feels itchy from a skin irritant are the nervous system and the immune system.
What is the physiological explanation of itching?
In general, itching is a signal sent by nerves from the skin to the brain after the immune system releases substances - such as histamine - in response to irritation.
With this information, we can conclude that the two systems that are most likely to interact when a person feels itchy from a skin irritant are the nervous system and the immune system.
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1. Students need to describe how genetic traits are determined by information encoded in
DNA passed on from parent to offspring.
Answer:
One copy is inherited from their mother (via the egg) and the other from their father (via the sperm). A sperm and an egg each contain one set of 23 chromosomes. When the sperm fertilises the egg, two copies of each chromosome are present (and therefore two copies of each gene), and so an embryo forms.
Explanation:
Resistance occurs when a patient transfers strong emotions felt about another individual to one’s therapist. Please select the best answer from the choices provided T F.
The statement that resistance occurs when a patient transfers strong emotions felt about another individual to one’s therapist of false.
Who is a therapist?A therapist is a professional person who is trained to provide care and rehabilitation.
People with mental stress or physical problems often see a therapist.
They treat people by talking to them or give then antidepressant or other medicine.
Thus, the given statement is false.
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Gene flow, a mechanism of evolution, works in populations not separated by ______
Explain the steps of Kreb's Cycle in detail.
Proper steps to be included or it will be reported.
Answer:
Krebs:
The citric acid cycle is also known as the Krebs cycle. This cycle occurs following glycolysis. Purpose of this cycle is to generate electron carriers or reduction carriers. These carriers transfer that energy to oxidative phosphorylation in the mitochondria.
1: Citrate synthase. The first step is to put energy into the system. ...
2: Aconitase. ...
3: Isocitrate dehydrogenase. ...
4: α-Ketoglutarate dehydrogenase. ...
5: Succinyl-CoA synthetase. ...
6: Succinate dehydrogenase. ...
7: Fumarase. ...
8: Malate dehydrogenase.
Hope this helps.
Which term best describes the role of plants?
producer
primary consumer
decomposer
secondary consumer
Answer:
secondary consumer
Explanation:
What other function can a muscle perform besides movement
1. Blood circulation
Cardiac muscles are the ones that aid the pumping action of the heart thus helping with the heart circulation2. Heat generation
Shivering is a method that the muscular system uses to generate heat to warm a body up3. Support
Muscles that line the body to help support the internal organs in their place4. Movement
Skeletal muscles pull on the bones causing movements at the joints.The movement caused by the respiratory muscles enables breathing.5. Protection
Skeletal muscles cushion the body's internal organs from force applied to the body externallyHope that helps!
explain how asthma affects the respiratory tract.
please answer this, ty
Answer:
If you have asthma, the inside walls of the airways in your lungs can become inflamed and swollen. In addition, membranes in your airway linings may secrete excess mucus. The result is an asthma attack. During an asthma attack, your narrowed airways make it harder to breathe, and you may cough and wheeze.
Explanation:
Carmen bought an aquarium along with sand, rocks, several kinds of aquatic plants, and two fish. After observing the aquarium for three months, she makes the following conclusion: The aquarium does not have enough consumers. What observations would support Carmen’s conclusion?
Answer:
Sorry I do k know answer =(
When pieces of soil are eaten and digested by worms they come out with a higher mineral content. These are known as___________.
A. aquifers
B. silt
C. castings
D. aerates
Answer:
C.) castings
Explanation:
Worm castings are a biologically active mixture of bacteria, enzymes, plant materials and animal dung leftovers, as well as earthworm cocoons. When worms digest food or other materials, complex nutrients are broken down into more accessible forms than those present in the castings. I hope this helps! ^-^
A connective tissue disorder in which dense irregular connective tissue fails to form properly will affect the formation of
Inability of dense irregular connective tissue to form properly will affect the formation of organs and the skin.
What is connective tissue?Connective tissue is the tissue that provides supports, and gives structure to other tissues and organs in the body.
Connective tissue is made up of cells, elastic fibers, and collagen.
The dense irregular connective tissues are distributed throughout the body are important in the formation of the skin, the eyes and walls of organs.
Inability of dense irregular connective tissue to form properly will affect the formation of organs and the skin.
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what is osmosis? how does a liquid travel through a membrane?
please help me with this question please
osmosis is the net movement of water across a selectively permeable membrane driven by a difference in solute concentrations on the two sides of the membrane
considering that glycolysis produces two pyruvic acid molecules per glucose. How many total Co2 molecules will be produced from the complete breakdown of each molecule? Show a mathematical equation to support your answer.
Answer:
3+3=6. 6/1=6
Explanation:
Pls, choose me as brainliest!
Answer:
[tex]3+3=6.\ \ 6/1=6![/tex]
I hope this helps you
:)
I need help finding real life images of both prophase and interphase. I end up mixing them together
Answer:
i found this, i think it might help
Explanation:
Attached under
During the early days of X-ray use for medical imaging. X-ray technicians developed cancer at a much higher rate than the general public.
Which argument BEST explains this trend?
A. X-ray exposure causes DNA bases to pair incorrectly which may led to cancer.
B. X-ray exposure causes double -stranded breaks in DNA which may lead to cancer.
C. X-ray exposure causes thymine dimer formation in DNA which may lead to cancer.
D. X-ray exposure causes DNA polymerase to make more mistakes which may lead to cancer.
PLEASE ANSWER IMMEDIATELY
X-ray exposure causes DNA polymerase to make more mistakes which may lead to cancer.
How X ray causes cancer?Ionizing radiation such as X ray is classified as a human carcinogen means that it can damage DNA and cause cancer disease.
If a person has an error in a DNA repair gene and mistakes remain uncorrected. Then, the mistakes leads to mutations. These mutations may eventually lead to cancer so we can conclude that X-ray exposure causes DNA polymerase to make more mistakes which may lead to cancer.
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Which of the following best describes a feature of the Kingdom Animalia that differentiates it from Fungi? Animalia have cell walls and Fungi do not. Animalia are heterotrophs and Fungi are not. Animalia are eukaryotes and Fungi are not. Animalia have complex organ systems and Fungi do not.
Animalia has complex organ systems and Fungi do not.
Fungi are heterotrophic organisms with a chitinous cell wall. The fungal frame is fabricated from thread-like lengthy systems referred to as hyphae. Many hyphae collectively make an entangled shape referred to as mycelium.
Hence, fungi showcase the tissue stage of frame organization animals are heterotrophic organisms and do not use a cell wall around their cells. They showcase the organ machine stage of frame organization, this is to say, that they have got numerous organ structures of their frame to carry out distinct functions.
What is a feature of the Kingdom Animalia?The feature of the Kingdom Animalia are:
multicellulareukaryoticcell wall absentheterotrophicHence concluded that Animalia has complex organ systems and Fungi do not.
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Answer:
Animalia has complex organ systems and Fungi do not.
Explanation:
Definition of Homologous morphology?
Which form of biotechnology involves creating a genetic duplicate of an organism
A. Therapeutic cloning
B. reproductive cloning
C. Somatic gene therapy
D. germ line gene therapy
Creating a genetic duplicate of an organism using biotechnological methods is known as reproductive cloning.
Reproductive cloningCloning generally refers to the production of clones.
Clones are exact copies of an organism or something.
When it comes to living organisms, clones are both genetically and physically the same.
Thus, creating a genetic duplicate of an organism is a form of cloning known as reproductive cloning.
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How do muscles generally create movement
A) constant contraction of muscle groups
B)constant relaxation of muscle groups
C)Uncoordinated contraction and relaxation of muscle groups
D)Coordinated contraction and relaxation of muscle groups
Answer:
D) Coordinated contraction and relaxation of muscle groups
Explanation:
In order for muscles to properly work, the muscle groups have to contract and then relax in coordination.
If muscles were to constantly contract, then the muscles would get overworked and fail to function correctly.
If muscles were to constantly relax, then the muscles wouldn't be able to work at all.
If the contraction and relaxation of muscle groups were uncoordinated, then the organism wouldn't be able to have muscle control, which is needed.
Due to the antiparallel nature of the dna double helix, _________.
The antiparallel nature of the DNA double helix is responsible for the opposing direction of replication.
DNA replicationThe DNA is made up of two strands that are antiparallel to each other. One is in a 5' to 3' direction while the other is in a 3' to 5' direction.
The replication process can only proceed in 5' to 3' direction only.
Consequently, one strand at a replication fork is synthesized in the direction of the fork, while the other is synthesized in the opposite direction away from the fork.
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What would happen if the valves separating the chambers and a person's heart did not close?
a) The volume of blood pumped from the atria to the body would be reduced because blood would backflow in the ventisles (WRONG!!!)
b) The volume of blood pump from the ventisles to the body would increase because blood would flow without restriction from the atria
c) The volume of blood pumped from the ventisles to the body would be reduced because blood would backflow into the atria
d) The volume of blood pumped from the atria to the body would increase because blood would flow without restriction from the venticles
Answer:
d)
Explanation:
The volume of blood pumped from the atria to the body would increase because blood would flow without restriction from the ventricles.
How does a decrease in abiotic factors impact the population growth in an ecosystem?.
Answer:
The availability of abiotic factors (such as water, oxygen, and space) and biotic factors (such as food) dictates how many organisms can live in an ecosystem. … If resources are destroyed, the ecosystem will not be able to support a large population. This causes the carrying capacity to decrease
Explanation:
What does the term rhetorical situation refer to?
A. The relationship between the speaker, the speaker's style of
address, and the audience's expectations
B. Parents, teachers, and other adults who are on social networking
sites
C. A specific occurrence in ancient Greece when politicians bullied
the people
D. Ideals that a speaker uses to guide a speech no matter who the
audience is
An atmosphere is a layer of gas or layers of gases that envelop a planet, and is held in place by the gravity of the planetary body.
What is atmosphere?An atmosphere is a layer or layers of gas that envelops a planet and is held in place by the planetary body's gravity. The names of the layers of the atmosphere. The name of the layer in which Earth’s weather occurs. The layer in which ozone is found. The purpose of classifying the layers of the atmosphere.
Stratosphere contains the ozone layer. Mesosphere is the coldest layer of the atmosphere are Troposphere, Stratosphere, Mesosphere.m Thermosphere is the hottest layer of the earth.
Therefore, An atmosphere is a layer of gas or layers of gases that envelop a planet, and is held in place by the gravity of the planetary body.
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What are the answers to the read and respond for the classification flocab
Answer:
I need a specific link or something to a flocabulary, I'm sorry but next time send screenshots or study
What is the main component of the thin filaments in muscle fibers and is responsible for muscle contraction? actin myosin atp dna
The main component of the thin filaments in muscle fibres that is responsible for muscle contraction is Actin.
What are actin and myosin filament and how they are responsible for muscle contraction?Actin and Myosin both are proteins that are found in muscle tissue. Myosin protein is the thick filaments whereas actin protein is the thin filaments that work together to generate muscle contraction and movement.
Along with the actin, there are some other proteins such as troponin and tropomyosin that forms the thin filament. However, actin plays an important role in the contraction of muscles as each actin molecule consists of a single myosin-binding site.
All actin molecules join together to form a chain twisted into a helix configuration which is important for the contraction mechanism in muscles.
However, actin is the thin filament that plays an important role in the contraction of muscles.
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Answer:
A.) actin
ur welcome ;)
Hello there, can you please answer this question, ty
Explain how asthma affects the respiratory tract.
Answer:
It can cause the respiratory tract to close during an attack, limiting oxygen which can be fatal. It also summons the presence of unhealthy lungs tat may need treatment, which is not good.
I hope this answers your question, please click the thanks button.
The cell membrane is able to move and/or change shape.
True
False
Answer:
For me, it's can the shape but not very much
HURRY PLEASE
Medusa, Cerberus, Cyclops, The Minotaur, The Kraken, Pegasus, Typhoon, The Hydra
What is the BEST category to put these characters in?
(1 Point)
1.heroes
2.creatures
3.goddesses
Once the cell has gone through interphase, it is ready for division. What is this process called?
Cellular Respiration
Mitosis
G0
S phase
Answer:
S phase
Explanation:
During the interphase which is also called the S phase, the cell duplicates its chromosomes and ensures its systems are ready for cell division. If all conditions are ideal, the cell is now ready to move into the first phase of mitosis.