Zoo-archaeology is the branch of archaeology dealing with the study of faunal remains which are the remains or the items left after the death of the animal. These items mainly consist of bones, chitin, scales, teeth, hair and sometimes proteins or DNA. The skin, muscles or other organs usually are not found as they get damaged and decompose over the time by decomposers, by physical or environmental agents. This causes problems to identify and interpret the significance from these faunal remains as these provide incomplete information.
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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
An owl eats its prey whole or in large pieces. Summarize what is found in an owl pellet and why it is regurgitated.
An owl’s digestive system cannot break down parts of the prey such as teeth, bones, fur, and exoskeletons. These parts of the prey are compressed into an owl pellet. The owl regurgitates this material so that it can leave the owl’s stomach.
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An owl pellet is a regurgitated mass containing the indigestible parts of an owl's prey such as bones, fur, and feathers. It is formed in the gizzard and regurgitated as a means to eliminate these materials from the owl’s body.
Explanation:An owl pellet is a regurgitated mass of the indigestible parts of an owl's food. After an owl swallows its prey, the ingested food passes through their unique digestive system. It first travels through the crop where it is stored, then to the proventriculus where digestive juices break down the food, and then to the gizzard which grinds down the food with the help of swallowed stones or grit.
The owl's digestive system is unable to break down some parts of the food like bones, fur, and feathers. These are formed into a pellet within the gizzard, and then regurgitated by the owl. So, the owl pellet serves as a way for the owl to eliminate indigestible materials from its body.
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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
is the raccoon a producer, primary, secondary, or tertiary consumer?
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
if the mass of the skateboard doubled but the net force on it remained constant ,what would happen to the skateboard's acceleration
The final acceleration of the skateboard will be half its initial acceleration
According to Newton's second law, the formula for calculating the force is expressed as:
F = ma .................. 1
If the mass of the skateboard doubled but the net force on it remained constant, then;
m₁ = 2m
F₁ = m₁a₁
F₁ = 2ma₁ ........................ 2
If the force on it is constant then F₁ = F and the second equation becomes;
F = 2ma₁
Divide both equations 1 and 2 to get the acceleration of the skateboard "a₁"
[tex]\frac{F}{F} = \frac{2ma_1}{ma} \\\frac{F}{F} =\frac{2a_1}{a} \\1=\frac{2a_1}{a}\\a=2a_1\\a_1=0.5a[/tex]
This shows that the final acceleration of the skateboard will be half its initial acceleration.
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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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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.
can someone help ASAP
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.
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?
i need to know the answers to 13 and 14
what is a diatom? what makes them different from other algae?
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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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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There are islands in the ocean that are growing larger. The Hawaiian Islands are good examples of this. The reason that the islands were formed and are still growing is A) they were produced by drought. B) they were produced by volcanoes. C) they were produced by hurricanes. D) they were produced by earthquakes.
Some of the force required to pedal a bicycle is used to overcome the______ of the moving parts.
Answer:
the answer is friction
What type of power generation can cause air pollution?
A. Wind
B. Coal
C. Geothermal
D. Solar
Computers talk to each other through a worldwide system called the
A ____ lens has a center that is thicker than its edge
give 2 examples of a physical response to an enviromental change that would enable an organism to maintain homeostasis
what is the difference between mechanical and chemical digestion
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:
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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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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
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
Which is considered a chemical mutagen? tanning beds tobacco X-rays precious metals Mark this and return Save and Exit
is a crayfish a producer, primary, secondary, or tertiary consumer?
Which part of a mushroom can you see above the ground? hyphae mat feeding network reproductive structure mycelium
The correct answer is reproductive part.
The mushroom belongs to the family of fungus. It is composed of two parts one underground part called as mycellium and the other part which can be seen above the ground. This part is the reproductive part of mushroom which is often edible. The other parts of the mushroom includes stem, hypae, volva, spores, gill, ring cap. There are variety of mushrooms available but all the forms are not eatable some of them are poisonous to human health.
Why is the age of a fault younger than the rock in which it is found?
A fault is a fracture through rocks that has experienced significant movement. The age of a fault is typically younger than the rock in which it is found because the fault forms after the formation of the rock. This movement can cause displacement and deformation of the rock layers, resulting in the creation of a fault.
Explanation:A fault is a fracture through rocks that has experienced significant movement. The age of a fault is typically younger than the rock in which it is found because the fault forms after the formation of the rock. Faults are created when stress causes the rocks to break along a specific plane, allowing for movement to occur. This movement can cause displacement and deformation of the rock layers, resulting in the creation of a fault.
The age of a fault is younger than the rock in which it is found because the fault represents a period of tectonic activity that occurred after the rock formed and solidified.
To understand this, consider the following points:
1. Rock Formation: Rocks are formed through various geological processes such as volcanic activity, sedimentation, or metamorphism. Once a rock forms and solidifies, its age can be determined through radiometric dating methods, which give the time since the rock's minerals crystallized.
2. Fault Formation: A fault is a fracture or zone of fractures between two blocks of rock, which may have moved past each other. The movement along the fault is due to tectonic forces and can occur at any time after the rock has formed.
3. Relative Timing: The fault's formation postdates the formation of the rock. This is because the rock must first exist before it can be broken or displaced by tectonic forces. Therefore, the fault cannot be older than the rock it cuts through.
4. Geological Evidence: Field evidence such as cross-cutting relationships can be used to determine the relative ages of geological features. A fault that cuts through a rock layer must be younger than the layer it cuts.
5. Dating Techniques: While the rock can be dated using radiometric dating, the fault itself is dated by its position in the stratigraphic sequence and by dating the youngest rocks that it cuts through. The fault's activity can also be bracketed by dating the sedimentary or volcanic rocks that fill the fault zone or by dating minerals that formed within the fault due to hydrothermal activity associated with faulting.
In summary, the age of a fault is determined by the timing of tectonic activity that caused the faulting, which necessarily occurred after the rock formed. Thus, the fault is younger than the rocks it affects.