Answer:
The answer is A
Explanation:
The statement that is not true is option A i.e., mutation are not part of evolution.
What is mutation?A mutation is an alteration in an organism's DNA sequence. Mutations can occur as a result of missteps in DNA replication during cell division, mutagen exposure.
Mutation can be takes as engine that drives evolution as it generates genetic variation.
Thus, the correct option is A.
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Rainforests are very biodiverse, meaning they ________.
are found all over the world
have several days of precipitation throughout the year
have many different kinds of plants and animals
have several different types of atmospheric gases
Answer:
I don't know for sure but I think it's, "have many different plants and animals."
Explanation:
It's sound rite?
Answer:have many different kinds of plants and animals
Explanation:
WHICH STATEMENT IS the strongest evidence in support of endosymbiotic theory of eukaryote evolution
Answer:
Please see my answer below.
If you like my response you can mark it as brainliest.
If you have any doubts (no joke) you can reach out to me in the comments.
Explanation:
The endosymbiotic theory states that some of the organelles in eukaryotic cells were once prokaryotic microbes. Mitochondria and chloroplasts are the same size as prokaryotic cells and divide by binary fission. Mitochondria and chloroplasts have their own DNA which is circular, not linear.
Which statement best describes why the body tries to maintain homeostasis?
- The body must maintain homeostasis so that the internal environment matches the
outside environment
- The body must maintain homeostasis so that the internal environment stays the same if the outside environment changes.
- The body must maintain homeostasis to make sure that a person’s heart and respiration rates are the same.
****Its the second one, (just took test) im just posting for other peeps****
Answer: The body must maintain homeostasis so that the internal environment stays the same if the outside environment changes
what fruits can give to our respiratory system and circulatory system
Answer:
pomegranate , kiwi and i think banana too .
Explanation: Respiratory System: Vitamin C, a potent antioxidant, prevalent in red bell peppers, strawberries, papaya, kiwi, leafy greens, cabbage, Brussels sprouts, and more, may alleviate inflammation in your respiratory system. Toss some extra fruit or veggies in with every meal, your health and overall energy will thank you.
Circulatory System: Citrus fruits like oranges, lemons and grapefruit are packed with antioxidants, including flavonoids. Consuming flavonoid-rich citrus fruits may decrease inflammation in your body, which can reduce blood pressure and stiffness in your arteries while improving blood flow and nitric oxide production.
In 1915, the scientist Thomas Hunt Morgan discovered that certain genes on chromosomes are associated with specific traits in fruit flies. However, the mechanism through which this process occurs was not detailed until 1966. That is when Marshall Nirenberg and several other scientists demonstrated that specific sequences of nucleotides in DNA correspond to specific proteins. After gene sequencing was introduced in 1977, scientists were able to use Nirenberg's discoveries to predict an organism's proteins from its DNA sequences.
How does the information above illustrate the nature of science?
A.
It shows that scientific progress is made primarily through observational rather than experimental evidence.
B.
It shows that earlier scientific ideas are typically incorrect since genes code for proteins and not traits.
C.
It shows that scientific ideas are durable but are developed as new data are collected.
D.
It shows that scientists like Nirenberg did not rely on ideas of others in making major discoveries.
A female rabbit had eight babies. Four of the babies was black and four was white. In rabbits, the allelle for black fur B is dominant to the allele for white fur b. What genotype in the mother and father rabbits could produce this outcome in the phenotypes of their offspring. Write a scientific explanation that explains the genotype of the female and male rabbits.
According to the gate control theory, what is one reason we are able to block the perception of pain?
Answer:
Gate theory claims that pain sensations must pass through a space, or gate, in the spinal cord, which can be closed to block pain signals sent from the brain or peripheral receptors.
Explanation:
According to the gate control theory, the activities of large fibres cause the excitation of inhibitory neurons. This reduces the transmission of pain signals.
What is gate control theory?
This is a type of defence mechanism by our nervous system. In this mechanism, the signals that are sent to the brain, by the spinal cord for the perception of pain, are managed by the spinal cord itself.
This may include the mechanism of reducing or increasing the pain. Therefore, the gate theory can heighten or decrease the perception of pain meaning the gate can either be closed or it can be open. The pain signals will pass to the brain if the gate is open and they will be restricted to the spinal cord if the gate is closed.
A painful or noxious stimulus of pain can be restricted or managed by a non-noxious stimulus. Like a backache can be managed by a gentle back massage.
Therefore, a gate control mechanism helps in blocking the perception of pain in the spinal cord.
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movement through the cell cycle is not controlled in the cells?
True or False
Answer:
False is the correct answer
Cell-cycle control is entirely dependent on post-transcriptional mechanisms such as phosphorylation of Cdk activity and the binding of regulatory proteins such as cyclins, which are themselves regulated by proteolysis.
movement through the cell cycle is not controlled in the cells is True.
What regulates the movement of a cell through the cell cycle?In addition to this structural function, the cytoskeleton is in charge of cell movement. Internal transport of organelles and other structures (such as mitotic chromosomes) through the cytoplasm is one of these.Cell-cycle control is entirely dependent on post-transcriptional mechanisms such as phosphorylation of Cdk activity and the binding of regulatory proteins such as cyclins, which are themselves regulated by proteolysis.Disruption of normal cell cycle regulation can result in diseases such as cancer. When the cell cycle is uncontrolled, cells can divide haphazardly and accumulate genetic errors, which can result in a cancerous tumor.To learn more about : Cell cycle
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Compare the growth of normal cells with and without growth factors.
Answer:
In contrast to normal cells, cancer cells don't stop growing and dividing, this uncontrolled cell growth results in the formation of a tumor. Cancer cells have more genetic changes compared to normal cells, however not all changes cause cancer, they may be a result of it (:
Explanation:
hope this helped <3
What part of the reproductive system is highlighted below?
A. Urethra
B. Vas deferens
C. Seminal vesicles
D. Epididymus
Answer:
Urethra and vas deferens
Explanation:
they are found in male reproduction part
The highlighted part in the image appears to be the Vas deferens.
This is the vas deferens, which is a tube that carries sperm from the epididymis to the urethra during ejaculation. The vas deferens is a part of the male reproductive system and is located in the spermatic cord that runs from the testicles through the inguinal canal and into the abdominal cavity.
It is one of the tubes that are cut or blocked during a vasectomy procedure, which is a form of male contraception in reproductive system.
The vas deferens is surrounded by smooth muscle, which helps propel the sperm towards the urethra during ejaculation.
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for
5. A photoheterotroph uses
for energy and
carbon
a. Light, organic molecules
b. Organic molecules, Organic molecules
c. Organic molecules, Light
d. Light, Light
Explanation:
c and a are same
the answer is a or c
what form of energy is needed to make photosynthesis happen?
(A) solar energy
(B) proton energy
(C) eletron energy
(D) chemical energy
Answer: (A) solar energy
Answer:
A
Explanation:
bc it says it................
choose one ecological relationship, define it, and give one original example that is not found in the lesson
Answer:
Ecological Relationships
Explanation:
Answer
There is a type of bird known as the honey bird in Africa. It actually guides people to bees nests so they can have honey, then once the people are gone it eats the honeycomb.
Explanation:
PLEASE ANSWER QUICKLY BRANLIES AND 100 POINTS WHOEVER ANSWERS PROPERLY.
Write a “lifeline” of a robin over the first year of its life. Include important events.
Explanation:
Robins are born in the spring or summer and are mature birds and ready to breed in the following spring or summer. They do not mate for life. Pairs usually remain together during an entire breeding season, which can involve two or three nestings. However, in spring, sometimes a male and female who mated the previous year will both return to the same territory and end up together for another year. This happens most frequently when they were successful raising babies the previous year. Robins lay one egg per day, for a total of 5–6 eggs in a clutch. The eggs hatch about 12 - 14 days after the last egg was laid. Baby robins jump from their nest when they are about 13 days old, but the range is 9 - 16 days. After leaving the nest (fledging), it takes another 10-15 days for babies to become strong fliers and independent birds. The parents continue to feed their young during this period.
Most robins die their first year. But the lifespan goes up dramatically for the ones that survive this critical time, because they've learned so many important life skills. Of those that survive their first year, most wild robins live to be about 5 or 6. As of February, 2001, the longest-living banded wild robin ever recorded had survived 13 years and 11 months, according to the Bird Banding Laboratory at the Patuxent Wildlife Research Center. In captivity, robins have survived longer than 17 years.
Answer:
In the spring, robins travel north and mate. Much chirping and singing go on among the robins before they mate. The eggs are fertilized inside the female's body. Newborn robins are nearly helpless. Their eyes are closed. They cannot feed themselves, so their parents get insects and bring them to the young. When another animal or bird gets near the nest, the parents protect the young robins. After the little robins grow enough to survive on their own, they are pushed from the nest by the parents.
Explanation:
Bryophyllum ; Leaf : : _______; root
Answer:
stem? pretty sure
Explanation:
What was the NEGATIVE effect of the oil embargo?
A: The price of fuel increased
B: Americans started using more renewables
C: Americans began using energy less efficiently
Compare and contrast open, closed, and isolated systems. Be sure to discuss the exchange of energy and exchange of matter, and provide at least one example of each
Answer:
Open, Closed, and Isolated Systems
A closed system does not allow matter to enter or leave, but does allow energy to enter or leave. A covered pot on the stove is approximately a closed system. An isolated system does not allow either matter or energy to enter or leave
Explanation:
calculate the circular cross-section of the deep water horizon pipe.
The circular cross-section is the concentric circle of the pipe. It can be calculated by using the diameter values or the ratio values.
How to calculate the circular cross-section of a pipe?
When talking about circular cross-sections we are referring to the concentric circle resulting from the intersection between the pipe and a plane.
To calculate the cross-section area, Ac, we need to know either the values of the diameters or the ratios.
the values of the inner and outer diameters, D and d.The formula to calculate it is Ac = π * (D² - d²) / 4
the inner and outer ratio values r, r1 and r2.
The formula is Ac = π * (r₁² - r₂²)
According to the provided information in your problem statement, use any of these formulas to calculate the circular cross-section of the deep water horizon pipe.
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12. Your body normally maintains a temperature of 98.6°F. This is an example of what?
Answer: This is an example of Homeostasis!! :D
Explanation:
Why DNA is absent in blood plasma?
Answer:
Red blood cells and blood plasma do not contain DNA. Red blood cells don't have the DNA containing nucleus and mitochondria. Only white blood cells in blood contain DNA. With blood donation, usually most of the white blood cells are filtered out.
Explanation:
because red blood cells don't have the DNA containing nucleus and mitochondria
Electronegativity increases when atoms
A. are located on the right on the periodic table
B. are located on the left on the periodic table
c. have a large atomic radius
D. have a small atomic radius
Answer:
A. and D.
Explanation:
If we go horizontally, from the left to the right on the periodic table, the electronegativity increases.
If the radius is small, that means the electrons are closer to the nucleus, which makes them more electronegative.
What is one result of meiosis?
two haploid cells
four diploid cells
four haploid cells
two diploid cells
Help ASAP
Which of the following best explains how higher concentrations of nitrogen and phosphorus contribute to eutrophication?
Answer:
See the answer below
Explanation:
It seems that you forgot to include the options for the question.
Nevertheless, one of the best explanations for how higher concentrations of nitrogen and phosphorus contribute to eutrophication is the fact that after light, both nutrients represent the most important limiting factor for algal growth. The overabundance of these two nutrients leads to the stimulation of the growth of various algal species present in the ecosystem, eventually causing what is referred to as algal bloom.
Apart from constituting a nuisance to waterways, the bloom of algae causes a host of problems to the environment which include the blockage of sunlight from getting to water bodies, the release of toxins into water by algal species, hypoxia of water bodies, and eventual death of aquatic species.
Which of the following choices correctly orders the flow of energy during the swampland leaf experiment?
Explanation:
you need to give us the choices
Answer:
Explanation:
It forms from an equal amount of potential energy.
and are usually always the same gender,
Identical twins have identical DNA,
A. temperament
B. blood type
C. personality
D. experiences
THE answer is B
Identical twins have identical DNA, and blood type, and are usually always the same gender.
What are identical twins?The term identical twins make reference to monozygotic twins, i.e., twins produced from the same zygote.
The zygote is a cell that generates during fertilization, i.e., by the fusion of a sperm cell and an egg cell.
The monozygotic twins have the same DNA because they were formed from the same sperm and egg cells.
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Answer:
B. blood type
Explanation:
I got it right
In which phase does a cell grow the most?
Answer:
Interphase
Explanation:
Which of the following is in the correct order from simplest to most complex cells tissue organ systems organs organisms
Answer:The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
Explanation:
The major levels of organization in the body, from the simplest to the most complex are: cells, tissues, organs, organ systems, and the human organism.
What is the simplest level of body organization?The human body is made up of atoms, cells, tissues, organs, and organ systems. The chemical level, which is the simplest, is made up of atoms. Cells are the smallest units of life that can do work.
Similar cells form tissues. The main types of tissues are epithelial, muscular, connective, and nerve.
Organs are structures made up of at least two types of tissue that do specific jobs in the body. The liver, the stomach, the brain, and the blood all do different things. Organs help the body perform functions.
Then come the organ systems. A system of organs is a group of organs that work together.
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Which of the following is not a protein made by the lac operon?
(A) Lactase
(B) Beta-galactosidase
(C) Permease
(D) Transacetylase
Answer:
Lactase
Explanation:
Lac operon (lactose) is degraded to glucose and galactose by three enzymes :beta galactosidase, galactoside permease and thiogalactosidase transacetylase.
Which refers to the rate of change in velocity?
a. speed
b. acceleration
C. direction
Plsss helpppppp
The answer is B. Acceleration
Acceleration definition- In mechanics, acceleration is the rate of change of the velocity of an object with respect to time. Accelerations are vector quantities. The orientation of an object's acceleration is given by the orientation of the net force acting on that object.
Help please thank you due today