Answer:
The correct answer is B. the preferred tree is the one that minimizes the amount of evolutionary change.
Explanation:
The principle of maximum parsimony selects the cladogram or phylogenetic tree that explains the phylogeny that has the minimum number of evolutionary changes. It is based on the principle known as Occam's Razor (Occam’s razor) formulated by William Ockham in the 14th century. This principle refers to a type of reasoning based on a very simple premise: other things being equal, the simplest solution is probably the correct one. This is because the simplest solution requires the least number of assumptions and logical operations. The basic premise in Parsimony is that taxa that share a characteristic (similarity) do so because they inherited that characteristic from a common ancestor, homology.
Question 8 of 10
Which question can be answered using the scientific process?
you need ot put the thing
Answer: Answer: Option D is the correct one. Science consists of methodsical activities that formulate hypotheses by using observations and experiments in order to address scientific questions.
Explanation:
I can't see the questions but i did this before sooo I may or may not be correct
What part of the body is not working as it should when you have coronavirus
Answer: The abdomen mainly the heart and brain.
Explanation: Corona virus mainly attacks the lungs
clogging them up with mucus making it hard to breath
this can disrupt airflow throught the blood.
during what phase of the cell cycle does the cell prepares for Mitosis?
Answer:
interpahse
Explanation:
A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division
Answer:
during interphase......
how the skin cells, neurons, muscle cells, and blood cells you have observed relate to the functions of skin, nerve, muscle, and blood tissue?
Answer:
All the type of cels perform different kind of functions that are specific to them.
Explanation:
Every cell has its own work to do but different cells may have different functions in multicellular organisms, cell with the same type of job often work together.
These groups of specialized cells from tissue in turn, the tissue often group together to form larger units called organs the heart is an organ; so is the stomach.
3.5.2 Test (CST): Computer-Scored Unit Test
Question 18 of 25
Why does having a genetically diverse population make a species more likely
to survive a change to the environment?
A. They are more likely to reach carrying capacity.
B. They are more likely to have harmful mutations.
C. They are more likely to become an invasive species.
D. They are more likely to have some individuals adapted for survival.
Answer:
D
Explanation:
Looks correct if you go with D
Genetically diverse population make a species more likely to survive a change to the environment because they are more likely to have some individuals adapted for survival. Thus, the correct option will be D.
What are Genetic variations?Genetic variation is the difference in the DNA molecule among different individuals or the differences between different populations of a species. The multiple sources of genetic variation include changes which could result from mutation and genetic recombination.
Mutations are the ultimate sources of genetic variation in a population, however other mechanisms, such as genetic drift, also contribute to it, as well. The populations which are genetically diverse are more likely to have some individuals adapted for survival.
Therefore, the correct option will be D.
Learn more about Genetic variations here:
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What is the human female reproductive cycle regulated by?
hope this helps
Answer:
The menstrual cycle is regulated by hormones. Luteinizing hormone and follicle-stimulating hormone, which are produced by the pituitary gland, promote ovulation and stimulate the ovaries to produce estrogen and progesterone.
How does ocean expansion occur?
Answer:
Sea level rise
Explanation:
State 3 characteristics of iodated salt
Answer:
1. soluble in water
2. White Crystalline Powder
3. Transparent and Colorless
Neutral theory proposes that
A) molecular clocks are more reliable when the surrounding pH is close to 7.0.
B) most mutations of highly conserved DNA sequences should have no functional effect.
C) DNA is less susceptible to mutation when it codes for amino acid sequences whose side groups (or R groups) have a neutral pH.
D) DNA is less susceptible to mutation when it codes for amino acid sequences whose side groups (or R groups) have a neutral electrical charge.
E) a significant proportion of mutations are not acted upon by natural selection.
Answer:
The correct answer is E) a significant proportion of mutations are not acted upon by natural selection.
Explanation:
The neutral theory, proposed by Motoo Kimura in 1968, proposes that part of the molecular variability produced by mutations that exists in populations is natural variability, that is, a large part of the genetic variation observed in populations is due to random fluctuation of genetic variants that are neutral, on which natural selection hardly acts, so they are not an evolutionary force since they do not contribute predominantly to natural selection and proposes genetic drift as an evolutionary mechanism.
what do you mean by the chromatin fibres ?
Hey buddy I am here to help!
Chromatin fibers are coiled and condensed to form chromosomes. Chromatin makes it possible for a number of cell processes to occur including DNA replication, transcription, DNA repair, genetic recombination, and cell division.
Hope its helps!
Plz mark me brainliest!
state four activities that can cause hazards at work places
Answer:
cords in walkway , horseplay, not locking and tagging out broke machines, tools not put away in proper place
10.What were we trying to prove about Mars by making our claims about
the channel on Mars?
that Mars was once habitable
that Mars was better to live on than the Earth
that Mars had rocks
that Mars had volcanoes
that there once lived humans on mars
Answer: That mars was once habitable.
Explanation:
mars was habitable just like earth, until it’s magnetosphere weakened and it lost its atmosphere.
______ is an enzyme that catalyzes the conversion of phosphate and ADP into ATP during oxidative phosphorylation in mitochondria.
a- Acetyl CoA
b- Cristae
c- ATP synthase
d- Krebs cycle
List at least 5 environmental problems caused by human populations inhabiting the earth. Propose some possible solutions that might address these problems.
Answer:
1 - Deforestation
2 - Industrial Fishing (mass fishing; when industries use those big nets to collect a ton of fish. y’know that Finding Nemo scene?
3 - Global Warming
4 - Poaching
5 - Pollution
Explanation:
Deforestation is destructive to our air quality, as well as the homes of wild life. This can and does causes animals to die, and not enough animals for the greater part of the food chain.
Industrial fishing is harmful to entire environments purely by there being a lack of fish for other animals to eat, as well as a large portion of the worlds fish being now absent because of this mass fishing.
Global Warming is caused by harmful gasses being released into our atmosphere, which is harmful for all life on earth when the earth’s temperatures are being raised.
Climate change in general is bad and caused by humans’ negative impact.
Poaching is illegally hunting animals. This leads to [if not already endangered] wild animals being endangered or extinct.
Pollution can go from anything to littering on the street or beach to industries dumping oil into our oceans, which is harmful for our water supply and all ocean wildlife.
22. Which of the following situations is the result of epistasis?
A mouse has black fur, black eyes, and black skin.
A mouse has white fur with black spots and black eyes.
A mouse has black fur with white spots and black eyes.
A mouse has white fur, pink eyes, and pink skin.
Answer:
The result of epistasis is actually:
A mouse has white fur with black spots and black eyes.
Explanation:
Answer:
Genotype: BBee
Phenotype:
✔ black
fur and
✔ red
eyes
Genotype: BbEe
Phenotype:
✔ black
fur and
✔ black
eyes
A mouse with black fur and red eyes could have the genotype
✔ Bbee
.
The same mouse with black fur and red eyes could also have the genotype
✔ BBee
.
Explanation:
Did it all correct
A pack of Ramboulet sheep were imported from Australia to Pakistan in November. After some days, various sheep were suddenly died. Remaining of them were carefully examined by an expert veterinarian who found that sheep were extremely weak with yellowish mucus membrane. Sheep were gasping and it was examined that some of them are anxiously looking at their belly. He prescribed some emergency drugs along with fecal examination. Results showed presence of large quantity of parasite oocytes approximately ranging from 145 -155 um in length and 85-95um in width. How will you proceed with diagnosis as veterinarian? What is differential diagnosis and lifecycle of parasite?
Answer:
Through medication.
Explanation:
First I will apply medication that kills the pathogen that is present in the feces as well as good feel to maintain the health of sheep which was weak due to the pathogens. I have to apply vaccines that kills oocyst that is responsible for this infection. A differential diagnosis refers to a list of possible conditions or diseases that could be causing your symptoms. It can be obtained from your symptoms, medical history, laboratory results, and a physical examination. We can find out the disease through the symptoms that we observe from physical examination.
Cellular Respiration requires the use of __________ which are located on the _________.
Answer:
Cellular respiration requires the use of glucose which are located on the mitochondria.
Explanation: Hope this helps :)
The Earth is also called a/an
a) Population
b) Ecosystem
c) Biosphere
d) Species
draw the metaphase stage of mitosis in plant cell with chromosomes
Answer:
get a life sci study guide it will help u
What is the relationship of gravity to Earth, the sun and moons?
Explanation:
Our sun is 27 million times larger than our moon. Based on its mass, the sun's gravitational attraction to the Earth is more than 177 times greater than that of the moon to the Earth.
The cassava is an important food crop for people living in sub-Saharan Africa. In the 1970s, mealybug infestations destroyed harvests and people starved. A researcher who studied the mealybug in its native environment discovered a parasitoid wasp that was a natural predator. After extensive testing to determine safety, the parasitoid wasp was introduced into the sub-Saharan region with tremendous effect controlling the mealybug throughout most of Africa. This approach represented a form of
Answer:
Biological control.
Explanation:
The introduction of parasitoid wasp into the sub-Saharan region in order to control the population of mealybug throughout most of Africa. This approach represented a form of biological control because one harmful organism is controlled with the help of other living organisms that feed on them. This method is environmental friendly and good as compared to chemical method of removing harmful insects.
I just need number one I need to fill in the blanks
NPK fertilizer are added in the soil to fulfill the need of ________
Answer:
Fertilizer is added to soils to increase plant productivity. A common type of fertilizer is called NPK fertilizer because of its ingredients: nitrogen (N), phosphorus (P), and potassium (K).
Explanation:
What are two different characteristics that scientists examine to classify living things?
a. blood characteristics and naming characteristics
b.chemical characteristics and DNA characteristics
c.physical characteristics and chemical characteristics
d. physical characteristics and environmental characteristics
Characteristics such as appearance, reproduction, mobility, and functionality are just a few ways in which living organisms are grouped together. These specialized groups are collectively called the classification of living things.
Scientists examine the physical and chemical properties of organisms to classify them. Thus, the correct option is C.
The physical characteristics of organisms include the macroscopic and microscopic characteristics such as body's structure, the type of specialized tissue present, the skin type, the cellular structure
The chemical characteristics of organisms include the cellular composition, the type of proteins present, the organ/tissue system present, the DNA composition, the enzymes present, the metabolic processes that occur.
Thus, the correct option is C.
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by which process does air move into the lungs?
Answer:
When you breathe in, the diaphragm moves downward toward the abdomen, and the rib muscles pull the ribs upward and outward. This makes the chest cavity bigger and pulls air through the nose or mouth into the lungs.
pls mark me the brainliest
Answer:
respiratory system
Explanation:
The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs, and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.
Hope this helps
chromosomes with one arm very small and other very long called
Answer:
Acrocentric
Explanation:
hope this is right
give 5 application of Charles law
Answer:
Try out a turkey timer. Pop-up turkey thermometers work by applying Charles' Law. The thermometer is placed in the turkey. As the temperature rises and the turkey cooks, the air in the thermometer expands to pop the plunger
AMP-PNP is a non-hydrolyzable analog of ATP that can bind to proteins in a similar manner as ATP but is no longer hydrolyzed. Predict what would happen to helicase activity if AMP-PNP were added to a DNA replication reaction. Choose one: A. Helicase would function normally, since AMP-PNP is not the same as ATP and would not bind to helicase. B. Helicase would function normally, since AMP-PNP is an analog of ATP and would function in the place of ATP. C. Helicase would function faster than normal, since the AMP-PNP is not hydrolyzed. ATP binding induces conformational changes, but hydrolysis slows DNA unwinding by helicase. D. Helicase would no longer function, since the AMP-PNP is not hydrolyzed. ATP binding and hydrolysis induce the conformational changes that facilitate DNA unwinding by helicase.
Answer:
The correct answer is - D. Helicase would no longer function, since the AMP-PNP is not hydrolyzed. ATP binding and hydrolysis induce the conformational changes that facilitate DNA unwinding by helicase.
Explanation:
During the replication process, helicase unzips or unwinds the double-stranded DNA. Helicase is a motor protein that uses ATP molecule hydrolysis in order to break the H-bonding between the strands of DNA.
If AMP-PNP added during DNA replication then it will bind to helicase and remains bound to helicase due to fact that it is a nonhydrolyzable ATP analog.
p,ease help meeeee
due in 5
Answer:
A membrane is partially permeable which means if a molecule that is smaller than another it can pass through the membrane but the molecule which is larger cannot (this totally depends on the membrane)
Ecotourism can provide an incentive for local people to preserve the environment in order to attract more visitors, but sometimes development is done with little planning for long-term environmental impacts. On a small island in the Caribbean, a local group is considering opening a resort for ecotourism. If they wish to build a sustainable and ecofriendly business, what should be the next steps in their plan?
A. Investigate the ecological impacts and gather evidence on which to base their decisions
B. Hire an agent to locate a suitable property and start developing infrastructure
C. Market the development to investors and explain ecotourism to them to raise money for the resort
D. Determine what types of activities the resort will offer and hire staff
Answer: The next steps in their plan should be to (Investigate the ecological impacts and gather evidence on which to base their decisions). The correct option is A.
Explanation:
ECOTOURISM is defined as the visitation of individuals (tourist) to natural areas that conserve the environment and sustains the well-being of the local people. It has to do with the interaction of the biotic components of the natural environment by tourists. This has the advantage of providing an incentive for the local inhabitants but can cause a long term negative environmental impact of not properly planned.
Conservation of these natural resources improves the quality of lives. It enables the inhabitants to live in a clean and healthy environment (eco-friendly). To set up a tourism center, certain rules and regulations needs to be met in order to avoid endangering both the biotic and abiotic components of the ecosystem. Therefore these local groups should investigate the ecological impacts and gather evidence on which to base their decisions. This would help conclude if a particular selected environment is conducive.