i need to know the answers to 13 and 14
suppose skin color in a frog is determined in two alleles: B (blue) and Y(yellow). B and Y show incomplete dominance, where BY heterozygotes are green. Suppose frog 1 is blue and frog 2 is green. frog 1 and frog 2 produce 200 offspring together. in actual numbers, how many of these offspring will be blue, green, and yellow?
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what is a diatom? what makes them different from other algae?
Which is considered a chemical mutagen? tanning beds tobacco X-rays precious metals Mark this and return Save and Exit
what is the difference between mechanical and chemical digestion
in what order do the birds blue jay, robin, cardinal, canary and pelican go in a cladogram
The blue jay, robin, cardinal, and canary, being songbirds, are closely related and would be clustered together in a cladogram. The pelican, however, belongs to a different clade, Aequorlitornithes, and would be positioned separately from the others.
Ordering Birds in a Cladogram
To understand the order in which the birds blue jay, robin, cardinal, canary, and pelican should be placed in a cladogram, we need to consider their evolutionary relationships. The blue jay, robin, and cardinal are part of the Passeriformes order, which is part of the Inopinaves clade—a larger group that also includes hawks, owls, woodpeckers, and songbirds. The canary is also a songbird and therefore falls within the same clade. Pelicans are part of the Pelicaniformes order and belong to a different clade called Aequorlitornithes, which includes diving birds and wading birds.
In a cladogram, the birds that share the most recent common ancestor are grouped more closely. Since blue jays, robins, cardinals, and canaries are all considered songbirds, they are closely related and should be grouped together in the cladogram. The pelican, on the other hand, would branch off earlier as it is part of a different clade.
Without specific genetic information, placing these birds in an exact order is challenging, but in general, canaries, cardinals, robins, and blue jays would appear closer together while the pelican would be positioned apart from them in the cladogram.
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What type of power generation can cause air pollution?
A. Wind
B. Coal
C. Geothermal
D. Solar
A ____ lens has a center that is thicker than its edge
if a chromosome unfold itself how is transportation enhanced
1.The dna region is easily accessible
2.the dna region is not accessible
3.the rna region is not accessible
4.the rna has already been made
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A chromosome unfolding enhances transportation by making DNA segments accessible for transcription. Hence, the correct option is option 1.
When a chromosome unfolds itself, the process enhances transportation by allowing specific segments of DNA to become accessible for transcription. The nucleosomes, which are complex structures of DNA and protein, can slide down the DNA to open up chromosomal regions. This opening of the chromatin structure is vital for the transcriptional machinery, such as RNA polymerase, to initiate the transcription of DNA into RNA. Hence, accessibility is significantly increased as the unfolded DNA provides an opportunity for transcription factors and RNA polymerase to bind to the exposed DNA sequences and carry out the transcription process.
Accessible, transcriptionally active regions of DNA are known as euchromatin, while DNA packaged so that it is inaccessible to regulatory protein binding is known as heterochromatin. Essentially, chromatin dynamics—such as the opening and closing of nucleosomes—allow DNA to be transcribed, move histones to open or close a chromosomal region, and are temporary changes that contribute to gene regulation.
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What is the advantage of using models to predict how changes in sea level shape earth
A. Estimates impact on inland locations
B. Predicts impact on coastal populations
C. Predicts change in temperature with time
D. Estimates which location will have more rainfall
Question
What is the advantage of using models to predict how changes in sea level shape earth
A. Estimates impact on inland locations
B. Predicts impact on coastal populations
C. Predicts change in temperature with time
D. Estimates which location will have more rainfall
Answer:
B. Predicts impact on coastal populations
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What Is The Function of The Digestive System?
a. Transport Nutrients.
b. Break Down Food.
c. Remove Waste.
d. Respiration.
Please Help Me O-O
Answer:
B. Break down food, I took the test, if you are in K12 <3
Samantha???s job involves studying ecosystems and their components. Specifically, she deals with the population and growth of the organisms in the ecosystem. What???s Samantha???s profession?
1. conservationist
2. entomologist
3. population ecologist
5. veterinarian
Answer:
C is your answer
Explanation:
Mendel suggested that each trait is the result of the interaction of two factors for that trait. Which term names these factors?
A. genes
B. alleles
C. traits
D. gametes
Answer:
alleles
Explanation:
Allele was the term Mendel used to name these factors. He suggested that each trait is as a result of the interaction between two alleles for that trait.
Gregor Mendel, an Austrian monk is the dubbed the father of genetics for his pioneering work in the field of genetics.
He proposed the mendelian laws of independent assortment and segregation from his observation.
He suggested that each trait is carried by an allele.
When parents combines to produce an offspring, they each give a copy of their allele.
The allele gives the trait of the offspring produced.
B. alleles is the names for the trait that result of the interaction of two factors.
What is Allele?In genetics, an allele is one of the possible forms of a gene that exists in a population. Alleles determine the expression of traits, such as eye color or hair type, by coding for a specific variation of a particular gene.
Mendel's law of segregation suggests that each individual has two alleles for a given trait, one inherited from each parent, and that these alleles segregate during the formation of gametes (sex cells) such that each gamete only receives one allele from each parent.
Mendel's law of independent assortment further suggests that the inheritance of one trait is independent of the inheritance of another trait, meaning that the distribution of alleles for one trait does not affect the distribution of alleles for another trait.
Together, these laws suggest that each trait is the result of the interaction of two alleles, one from each parent, and that the combination of these alleles determines the expression of the trait.
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True or False: Always cut towards the body when using knives or paring utensils, like peeling a carrot or apple. Jarod knows this is a safety precaution.
Tommy is planning his science fair project. He wants to measure the rate of photosynthesis in plants that live in fresh water. Is this an example of a scientific investigation or an experiment? An experiment because it shows a cause and effect relationship An experiment because it does not ask a testable question An investigation because it can be easily done in natural settings An investigation because there is a control group
The given is an example of an experiment because it does not ask for a testable question. Thus, the correct option will be B.
What is an experiment?An experiment can be defined as a procedure which is being carried out to support or to refute a hypothesis, or for determining the efficacy or likelihood of something which is previously untried. Experiments have been found to provide insight into the cause-and-effect type of relationship by demonstrating what actually the outcome occurs when a particular factor is manipulated in an experimental study.
Tommy is planning a science fair project. He wants to measure the rate of photosynthesis in the plants which live in fresh water. This is an example of an experiment because it does not ask for a testable question.
Therefore, the correct option will be B.
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Your question is incomplete, most probably the complete question is:
Tommy is planning his science fair project. He wants to measure the rate of photosynthesis in plants that live in fresh water. Is this an example of a scientific investigation or an experiment?
a. An experiment because it shows a cause and effect relationship
b. An experiment because it does not ask a testable question
c. An investigation because it can be easily done in natural settings
d. An investigation because there is a control group
Which step only occurs in the formation of coal?
A. Movement of the earth causes the rock to fold and form a trap
B. Decaying swamps are covered with seawater
C. Great temperatures build up over layers of organic material
D. Organic remains are trapped under layers of sediment and water
In coal formation, Decaying swamps are covered with seawater
what is Coal?Coal is a solid fossil fuel material that is black in color and readily combustible it contains a large amount of carbon based material.
Coal formation begins in swampy areas where there is enough groundwater and is near or slightly above the topsoil.The plants or flora present in the areas decomposes to produces organic matter that is needed. For the organic matter to be produced, the plants must be buried in water for it to decompose.Therefore, decaying of swaps covered with sea water is a major step in Coal formation as they aid the decomposition and formation of organic matter.
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What are the two main steps of DNA replication
he birds shown above have beaks with three different shapes and sizes.these genetic variations in the black each appeared initially due to? -environmental factors -mutations -natural disaster -conscious choice by the birds
The birds shown above have beaks with three different shapes and sizes. The genetic variations on the beak each appeared initially due to
Answer 1- mutations
Look at the three beaks which flock's birds have beaks that seem most likey to Pierce a piece of fruit?
Answer 2-Flock X
Suppose that s plant disease kills all fruit. The change could become a
Answer 3- selective pressure
Check all possible effects of this selective pressure
Answer 4- 1, 2, 3, and 4 are true.
Flock x may try to eat other foods -True
Flock x could migrate in search of fruit -True
Flock Y and Z could benefit and increase- True
Flock x could try to mutate- False
100 points help!!!! How is electricity produced in a dam? (Use these words: water, kinetic energy, reservoir, penstock, turbine, generator, transformer, electrical lines)
Hydroelectricity comes from using the kinetic energy stored in the water. When the high pressure through the blades are released, its kinetic energy is transferred onto turbine blades to generate electricity.
water, kinetic energy, reservoir, penstock, turbine, generator, transformer, electrical lines) Hope This Helps
Should genetically modified organisms be available for human consumption? Explain why or why not.
Yes, genetically modified organisms should and are available for human consumption, and they are fully tested before introducing to humans.
What are genetically modified organisms?A genetically modified organism (GMO) is a living organism whose DNA has been altered using genetic engineering techniques. Humans have utilized breeding strategies to modify creatures for thousands of years. Over millennia, corn, livestock, and even dogs have been selectively selected to have particular desired features.
These organisms are safe to eat because they are fully tested before introducing to people. These organisms contain more nutrients than normal animals and can prepare in vitro conditions.
Therefore, yes, genetically modified organisms should be available for human consumption.
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Which best describes what happens to a developing fetus during the third trimester?
Answer:
fetus continue to grow in size and weight
Planet C has a tilt of zero degrees. What seasonal changes would be expected on this planet?
Extreme temperature changes between seasons
No change in temperatures between seasons
Seasonal changes along the equator only
Seasonal changes at the poles only
Answer:
No change in temperatures between seasons or B
Explanation:
The prefix centi- means A) 1/100. B) 1/1000. C) 100. D) 1000.
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In one type of plant, orange petals (O) are dominant over yellow petals (o) and tall stems (T) are dominant over short stems (t). Complete a dihybrid cross for parents with the genotypes: OOTt × OoTt and answer the following in complete sentences.
Describe how you would set up a Punnett square for this cross.
List the likelihood of each possible offspring genotype.
List the likelihood of each possible offspring phenotype.
Genotype Likelihoods: We count each of the possible results and tabulate the number of times each appears, and divide by the total number of combinations (16).
OOTT: 2/16 = 1/8 = 0.125
OOTt: 4/16 = 1/4 = 0.25
Oott: 2/16 = 1/8 = 0.125
OoTT: 2/16 = 1/8 = 0.125
OoTt: 4/16 = 1/4 = 0.25
Oott: 2/16 = 1/8 = 0.125
Phenotypes: Check attachment. Based on the genotypes, use the dominant gene if at least one is dominant (Ex. Oo = O, oo = o)OT: 12/16 = 3/4 = 0.75
Ot: 4/16 = 1/4 = 0.25
is the raccoon a producer, primary, secondary, or tertiary consumer?
Which of the following factors interact to create currents that are less than 50 m deep?
A. temperature, gravity, and the Coriolis effect
B. wind, friction, and the Coriolis effect
C. wind, temperature, and salinity
D. density, temperature, and salinity
Answer B. Wind,Friction and the Coriolis effect
Explanation:
Answer: The correct answer is : B. wind, friction, and the Coriolis effect
Explanation: The patterns of surface currents are defined by the direction of the wind, the Coriolis forces from the rotation of the earth and the position of the landforms that interact with the currents.
the fluid filled space within the nuclear envelope
The correct answer is nucleoplasm.
The nucleus of the majority of the cells comprises a substance, which suspends compositions inside the nuclear membrane. Similarly, to the cytoplasm, the nucleus comprises of nucleoplasm, also called karyoplasm.
The nucleoplasm is a kind of protoplasm, which comprises the majority of water, dissolved ions, and a mixture of different molecules. It is entirely enveloped inside the nuclear envelope or nuclear membrane. It is a sticky liquid, highly gelatinous, which supports the nucleoli and chromosomes.
The main activity of the nucleoplasm is to function as a suspension material for the organelles within the nucleus. It also assists in sustaining the composition and shape of the nucleus and plays an essential function in the transportation of substances, which are important to cell function and metabolism.
Which process describes the discharge of waste from the body? Absorption Chemical Elimination Mechanical
The elimination describes the discharge of waste from the body.
What do you mean by elimination?The food molecules that cannot be digested or absorbed need to be eliminated from the body. The removal of indigestible wastes through the anus, in the form of feces, is defecation or elimination.
Many internal organs and systems are responsible for eliminating waste from the body including: the lungs, skin, kidneys, liver, colon and lymphatic system.
The final step in digestion is the elimination of undigested food content and waste products. After food passes through the small intestine, the undigested food material enters the colon, where most of the water is reabsorbed.
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