Answer: B, C, and D
Explanation:
The application of the insecticide caused directional selection in the mosquito population. There were some mosquitoes with innate genetic resistance to the insecticide before it was sprayed the first time. Natural selection selects for a phenotype in a population that has an advantage under certain environmental pressure. The correct options are B, C, and D.
What is case study?A case study is defined as 'an intensive study of a person, a group of people, or a unit with the goal of generalizing across several units'.
A case study has also been defined as a focused, systematic investigation of a single person, group, or community.
The insecticide application resulted in directional selection in the mosquito population. Before the insecticide was sprayed for the first time, some mosquitos developed innate genetic resistance to it.
Natural selection favors phenotypes in a population that have an advantage under certain environmental conditions.
Thus, B, C, and D are correct options.
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Someone please help! I will mark you as brainlist!!o
Answer:
cycadophyte
Explanation:
cycadophyte
How many atoms are in this formula
C₆H₁₂O₆
Answer:
3
Explanation:
If you ever need help on a question like this again, use this link: https://adrianbobak.github.io/atom-counter/
The phenotypic variation in behavior between the two populations can best be described as resulting from sexual selection sexual selection A natural selection natural selection B artificial selection artificial selection C genetic drift
About the question:
I failed to find the complete question. However, I propose the following answer and explanation according to the given statement.
Answer:
Natural selection
Explanation:
Natural selection is the product of the interaction between phenotype and environment, which determines gene destiny in space and time, selecting beneficial alleles and increasing their frequency in the population.
Natural selection results in adaptation, which means the increase of the aptitude phenotype. Aptitude is the contribution of each genotype to the next generation.
In many cases, adaptations -as a result of natural selection-, can be correlated to environmental factors or selective pressures applied by other organisms or habitats. These organisms might change or modify their habits according to the environmental pressures that are acting on them. Natural selection favors these new habits and behavior. The better an organism can behave in an environment, the higher chances to survive.
In the exposed example, if assuming that these two populations belong to the same species, they might behave differently from each other if they are, for instance, occupying different niches, changing their feeding habits, competing with other species, among other factors. If these two groups are separated in space and/or time, they might receive different environmental pressures that lead them to change the original behavior to a new one. And as both groups are separated, those pressures probably differ, modeling a behavior adapted to a specific niche.
Answer:
The correct answer is natural selection.
What is the expected genotypic ratio resulting from a heterozygous ´ heterozygous monohybrid cross?
Answer:
1:3:1
Explanation:
Drawing a Punnett Square helps
what are all the steps of the water cycle
Answer:
Brainliest please!
1. Evaporation - During this process, surface water turns into water vapor. This is done by the transfer of heat energy. Water absorbs this heat energy and turns into its gaseous state.
2. Condensation - Water vapor rises into the atmosphere and is changed into water droplets. When gas is chilled, it turns back into a solid state. These water particles that form in the atmosphere then come together to form clouds.
3. Sublimation - Ice directly converts into water vapor without first converting into a liquid. This process accelerates when the temperature is low or pressure is high.
4. Precipitation - It is the result of evaporation and condensation. Precipitation describes any liquid or solid water that falls to Earth as a result of those two processes. It includes rain, hail, snow, sleet and a bunch more.
5. Transpiration - When precipitation happens, the soil absorbs some of the water. While in the soil, the roots of plants will take in the water and push it towards the leaves where it is used for photosynthesis.
6. Run Off - This happens as a result of precipitation, so it is again, technically not a process. As water pours down, it leads to runoff. This is the action of water running over the surface of the Earth. As water runs over the ground, it can displace the topsoil with it and move minerals along lakes, seas and oceans.
7. Infiltration - This last process happens when water does none of the things stated above after precipitation. Sometimes, some of the water will move deep into the soil. Avoid the plants, avoid evaporation, avoid runoff, everything. The water instead seeps down and increased the level of the groundwater table. It is called pure water and is 100% fresh and drinkable.
Bone remodeling is a function of what cell?
Answer:
a)Osteoclasts
b)Osteoblasts
Explanation:
a) destroys the bone matrix
b) have osteogenic functions
Bone remodeling is a function of cell - Osteoclast, and osteoblast
Bone remodeling is a lifelong process where mature bone tissue is removed from the skeleton called bone resorption and new bone tissue is formed called ossification or new bone formation.
the removal of mineralized bone by osteoclastsafter removal of mineralization, the formation of the bone matrix through the osteoblastsprocess of bone remodeling also called bone metabolism is regulated by keeping maintenance between bone formation and bone resorptionThus, the correct answer is - Osteoclast and osteoblast.
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5. The reactants and products for respiration are exactly the
same for a plant cell and an animal cell, the difference is
the _______
of the reactants.
Answer:
Source
Explanation:
Respiration, which occurs in all living organism, is the metabolic process by which organisms obtain energy (ATP) via the breakdown of their food substances.
The process of respiration in plant and animal cells is similar in the sense that reactants and products for respiration are exactly the same for both cells. The reaction is as follows:
C6H12O6 (glucose) + 6O2 = 6CO2 + 6H2O
The difference between this process in plant and animal cells is the SOURCE of the glucose or food molecule that is broken down. Plants get their food from PHOTOSYNTHESIS (autotroph) while animals get theirs by feeding on other organisms (heterotroph).
Suppose we have access to the four nucleotides which compose DNA: A, T, C and G. Placed into a sequence with one another, they form a code which can be read by the cell to provide a blueprint for the creation of proteins. When forming a sequence of three nucleotides, the sequences TAA, TAG, and TGA are codes to tell the cell to stop reading the DNA. Assume each sequence of nucleotides is equally likely to be formed.
A. How many possible ways are there to form a sequence of three nucleotides? - 64
B. Of the possible ways to form a sequence of three nucleotides, what is the probability to form a stop sequence? = 0.0469
C. What is the probability that a sequence that is not a stop sequence is formed? 64-3 = 61 61 = 0.983
D. For a three-nucleotide sequence, G is engineered to be in the third place. For the remaining two nucleotides in the sequence, C cannot be in the second place (for example CTG is allowed but not TCG). How many sequences can be formed?
E. Of the number of sequences found in Part D, what is the probability that a stop sequence is formed?
Answer:
The correct answer is :
A. we know there are four nucleotides and three sequence makes a triplet code then total possible ways are:
4^3 = 4×4×4= 64 ways.
B. The stop codons by 64 amino acid or triplet codes: TAA, TAG, and TGA then the probability would be = 3/64 = 0.0469
C. the probability that a sequence that is not a stop sequence is formed = total minus probability of stop codons:
64-3 = 61
61/64 = 0.953
D. G at end place and c should not be in the middle then:
the codes will be =
ATG
AGG
AAG
TTG
TGG
TAG
CTG
CGG
CAG
GTG
GGG
GAG
Total 12 triplet code sequences.
E. Among all these 12 codons there is only one stop codon that is TAG so the probability of this stop codon is :
1/12 = 0.083
5. The process involving the transfer of molten material from one place in the earth's crust to
another, resulting in landforms of great elevation, are called:
5.1 exogenous forces
5.2 volcanism
5.3 diastrophism
5.4 isostasy
5.5 mountain formation
5.6 ignore question
Volcanism is the process of transferring molten material from one location in the earth's crust to another, going to result in landforms of great elevation.
What is volcanism?The explosion of molten rock from within the Earth to the surface is known as volcanism.
Volcanism is caused by the Earth's internal heat and is associated with tectonic activity as well as being a part of the rock cycle. Volcanic eruptions happen when molten lava reaches the Earth's surface.
Thus, the correct option is 5.2.
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Which statement best describes biodiversity? *
5 points
A) a geographic area on earth that contains ecosystems
B) The variety of life in a habitat or ecosystem
C) An area that receives very little rain
D) A nonliving thing that affects an ecosystem
Answer:
B)
Explanation:
It refers to all the variety of life that can be found on Earth (plants, animals, fungi and micro-organisms) as well as to the communities that they form and the habitats in which they live.
IT WOULDN'T LET ME ANSWER. NOW YOU SAID TO HELP ME TOO.
Which of these is based on a deduction?
a. If I tum the key in the ignition while stepping on the gas pedal, then my car will start.
b. My car battery is dead.
c. My car is out of gas.
O d. My car won't start.
Answer:
d
Explanation:
A(n) __________ is all the animals of the same species in the same area at the same time.
A. community
B. population
C. species
D. ecosystem
Answer:
B. Population
respiratory pigment
What measure is used to determine a star's absolute magnitude?
apparent magnitude
astronomical units
luminosity
size
Answer:
A you use apparent magnitude to find the absolute magnitude
How can alleles show incomplete dominance?
Answer:
When an allele isn't completely expressed over its paired allele for a specific trait, the result is an intermediate of the two allele, a third phenotype.
This is termed as incomplete dominance.
__________ of tissues by hard bones
Answer:
Connective tissue
Explanation:
Bone tissue is a type of dense connective tissue.
Hope this helps you!
Answer:
Connective tissue
Explanation:
Connective tissue of tissues by hard bones
what is the correct order of steps in gene expression a).rna, to DNA , to protein b).DNA to rna to protein c). DNA to protein to rna
Answer:
B
Explanation:
But instead of it being RNA it would be DNA->mRNA->protein
The correct order of steps in gene expression is DNA to RNA to protein, The correct option is B.
What is gene expression?The process by which the information stored in a gene is used to create a functional product, such as a protein, is referred to as gene expression. This procedure is divided into two stages: transcription and translation.
From DNA to RNA to protein, This is known as molecular biology's central dogma and describes the flow of genetic information within a biological system.
Through a process known as transcription, DNA serves as a template for the synthesis of RNA. In turn, RNA serves as a template for protein synthesis via a process known as translation.
Thus, the correct option is B.
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What is the benefit of having a variety of pollinating birds and insects, and how could this service be harmed by changes in their population?
Answer:
b
Explanation:
The benefit of pollinating birds and insects is that they help to fertilize plants iby transferring pollen from one flower to another between plants when feeding on nectar
What is pollination?Pollination is the process by which pollen grains is transferred from the male anther of a flower to the female stigma. Pollination occur so that there will be production of offspring for the next generation. One of the ways that plants reproduce their offsprings is by making seeds.
Therefore, The benefit of pollinating birds and insects is that they help to fertilize plants iby transferring pollen from one flower to another between plants when feeding on nectar
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HELP PLZ ASAP GIVING BRAINLIEST!!
Answer:
I think D. Loss of Wildlife may be correct
Explanation:
An old alternative hypothesis for the evolution of infanticide was that parents killed offspring (including their own) when food was short for the good of the group. On the basis of a modern view of adaptation, why is this not a good explanation for the evolution of infanticide
Answer:
On the basis of gender preference.
Explanation:
In the modern view of adaptation, the main cause of infanticide is not the food but the gender preference. In many societies, people killed their infant when they knew that the infant is a girl. They thought that having a girl is curse or shameful thing so they kill the infant. These type of people wants male baby or prefer male child so that's why they kill the infants. In the ancient times, infants were killed that were abnormal or having any defects but today it happen due to gender preference.
A few years ago, the labels from one class section's experimental treatments plants fell off in the greenhouse and got swept away! One group was the only group in the section to test the effects of indole acetic acid (IAA) on bean plants. The IAA group applied lanolin paste to one side of their bean stems. What should they look for in order to identify their experimental plants from other groups
Answer:
The group needs to find signs of apical dominance, growth in response to light, vascular tissue differentiation, formation of lateral and adventitious roots, etc.
Explanation:
Lanolin is a solvent used to study physiological processes in plants by diluting hormone growth regulators (in this case, indole acetic acid). Indole acetic acid (IAA) is the most important auxin hormone in plants. Auxins are essential plant hormones synthesized in expanding shoot tips that move down the stem to the roots. These hormones coordinate cell division, elongation and identity during plant body development. IAA hormone is well known to regulate different plant developmental processes including, among others, apical dominance (where the central stem grows more strongly than other lateral stems), tissue differentiation, stem elongation, phototropism (growth in response to light) and gravitropism (response to gravity). For instance, under the application of IAA, it is expected that bean stems grow to imitate the response to light (phototropism) by bending away from the side where lanolin was applied.
BIOLOGY PLEASE HELP 15PTS AND BRAINLIEST
What three processes take place in the digestive system?
Answer:
digests food, absorbs released nutrients, and excretes food components that are indigestible.
approximately how much dna is found inside the nucleus of a typical human cell if it were unwound and stretched end to end
Answer:
2 meters (3 Gb of base pairs)
Explanation:
The human genome is composed of 3 billion (3 Gb) base pairs, which are organized in 23 pairs of chromosomes. Within the nucleus, DNA is compacted by histone proteins to form nucleosomes and these structures are then organized in chromatin fibers that undergone higher-order compaction. The compaction of chromatin fibers is accomplished by proteins and Matrix attachment DNA regions (MARs) that bind specifically to the nuclear matrix. In an unwound state, each cell nucleus in the human body has approximately 2 meters of DNA (if the DNA molecule would be stretched end-to-end).
Please help i need answer ASAP
Answer:
C
Explanation:
A divergent boundary is when the plates move apart from each other. When the plates part, magma from under either plate rises and forms a volcano. A hotspot is the third place a volcano can form. This particular type is the least common.
Answer:
I think A, because b is where the volcano is, c looks like a volcano ready erupted so I might be dormant and may erupt another time. while A is plain surface.
How to use informal assessment effectively to prepare for examination
Answer:
Kindly check explanation
Explanation:
The use of informal assessment while preparing for an examination could take various forms. Informal assessment include the use of actual grading of a set of questions which one decides to test his/her knowledge on in other to check or evaluate performance. Similarly, one may employ the use of a colleague or friend to set out a few likely questions from the subject or the use of previous test or examination questions to ascertain how well one has grasped or covered in the subject. Also, one could personally reminisce on the areas covered, frame likely questions in reasoning and check if the appropriate response could be proffered.
E
Which of the following explains why artificial selection is described as artificial?
It is the label used to show which animals have been given hormones and artificially-made nutrients.
ООО
It deals with synthetic or superficial genes and traits like color, markings, size, and speed.
It is the opposite of natural selection, in which organisms adapt to their environments without human intervention
O It alludes to the process of artificial insemination, a process of unnaturally planting a fertilized egg.
Answer: it deals with synthetic or superficial genes and traits like color, markings, size, and speed.
Explanation: a good example of artificial selection is breeding dogs. people mix breeds to get these kinds of quality’s.
Artificial selection is the opposite of natural selection, in which organisms adapt to their environments without human intervention. So, the correct option is C.
What is Artificial selection?Artificial selection, commonly known as selective breeding, is the intentional breeding of particular plants or animals by humans to advance certain desirable traits. On the other hand, natural selection occurs in the wild when organisms with favorable characteristics are more likely to survive and reproduce.
The term "artificial" in artificial selection refers to deliberate human manipulation of the reproductive process as opposed to allowing natural processes to occur. The use of nutrition, hormones or artificial insemination is not mentioned. A wide variety of traits, including color, markings, size, movement, and other physical or behavioral characteristics, are possible through artificial selection.
So, the correct option is C.
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What is glucagon's major role in the body?
Answer:prevent blood glucose levels dropping
Explanation:Glucagon's role in the body is to prevent blood glucose levels dropping too low. To do this, it acts on the liver in several ways: It stimulates the conversion of stored glycogen (stored in the liver) to glucose, which can be released into the bloodstream. This process is called glycogenolysis.
Help ASAP please
15. (07.05 MC)
How does the timing of meiosis in humans differ in males and females? (1 point)
In females it begins prior to birth, while in males, it begins after birth.
ОО
In females it ends at the end of puberty, while in males, it ends at birth.
In females it is completed as puberty begins, while in males, it starts at puberty.
In females it continues throughout life, while in males, it stops at puberty.
Answer:
In females it begins prior to birth, while in males, it begins after birth.
Explanation:
Hope this Helps you!
HAve a great day!!I
n human males, meiosis occurs in the seminiferous tubules of the testicles while in females, it occurs in cells called as oogonia. In males, meiosis occurs at puberty while in females it occurs right at birth
Sharks eat large fish, crabs, and starfish because they are ______. *
Answer:
Predators
Explanation:
sharks eat other animals because they are predators.
What evidence in Courtney's data would most likely lead her to change the way she is conducting her study?
Answer: Her times at lunch were always faster, no matter what type of meal she ate.
Explanation: