Help!
A species of cactus has two alleles for the length of its spines: long spines
(L) and short spines (). The Punnett square below predicts the outcome of a
cross between two cacti, one LL and the other Ll for length of spines.
What phenotype ratio should be observed in the offspring of this cross?
Answers
Answer: 4 : 0 (long spines to short spines)
Explanation:
Dominant allele: L
Recessive allele: l
When is there at least one dominant allele in the phenotype it shows the dominant trait (long spines)
There has to be two recessive alleles to make the phenotype the recessive trait (short spines).
Therefore since there is one L in every box, all of the offspring will show the dominant trait (long spines).
Hope that helps!
Related Questions
PLEASE ANSWER THIS QUESTION I WILL GIVE BRAINLIEST!!! PLEASEEEEEE AND EXTRA POINTS!
Answers
Answer: I think it is A
Explanation:
The metal is hot and the water is cold, so when both temperatures collide, I believe either temperature will drop or rise until balanced.
Why does the sun appear to rise in the east and set in the west every day?
A.) Earth is rotating counter clockwise
B.) The sun is moving from East to West
C.) All moons and stars have an East to West orbit
D.) Earth is orbiting the sun
Answers
Answer:
A. Earth is rotating counter clockwise
Explanation:
The Sun, the Moon, the planets, and the stars all rise in the east and set in the west. And that's because Earth spins -- toward the east. ... Earth rotates or spins toward the east, and that's why the Sun, Moon, planets, and stars all rise in the east and make their way westward across the sky.
Let me know if this is wrong...good luck and hope this helped!
The image shows one of the main types of landforms. Which type of landform is shown? field mountain plains plateau
Answers
Answer:
It is plains
Explanation:
There is no picture but i just took test
The type of landform that is shown in the given image is plains. The correct option is C.
What is a landform?Landforms are features on the Earth's surface that contribute to the terrain, such as mountains, valleys, plains, and plateaux.
They also include coastal features like peninsulas and bays, as well as underwater features like ocean basins and mid-ocean ridges.
The four major types of landforms are mountains, hills, plateaus, and plains. Buttes, canyons, valleys, and basins are examples of minor landforms.
Landforms can be created by tectonic plate movement beneath the Earth by pushing up mountains and hills.
A plain is a large expanse of relatively flat land. Plains are one of the most important landforms, or types of land, on the planet.
They occupy more than one-third of the global land area. Every continent has plains. Grasslands.
Thus, the correct option is C.
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Your question seems incomplete, the missing image is attached below:
Which are uses of lasers? Check all that apply.
scanning a bar code on a price tag for a shirt
creating a magnified image of the moon
cutting an iron bar into two pieces
reshaping a cornea to improve vision
making a leaf appear larger so its veins are visible
Answers
Answer:
Scanning a bar code
Reshaping cornea
Explanation:
Answer:
a
Explanation:
UCSAU
New York State charges consumers a fee when purchasing beverages sold in aluminum cans
and plastic bottles. This money is returned to purchasers when they return these items for
recycling. Programs such as these are an attempt to
A)
encourage people to spend more money on their beverages
B)
conserve the resources these containers are made from
C)
reduce the amount of carbon dioxide produced by deforestation
D)
totally eliminate the use of reusable containers
Answers
Answer:
B)conserve the resources these containers are made from
especially to reuse and recyle and ensure they dont waste the recyclable materials
The money that is returned to purchasers when they return aluminum cans for recycling is an attempt to conserve the resources these containers are made from.
What do you mean by conservation of resources?"Planned use of resources in order to meet the present needs and to store a part for the future generations is called conservation of resources."It is based on the fact that resources are not everlasting and if we continue exploiting it, it will get exhausted at much faster rate than it is renewed.So, we should carefully use these resources in order to make it long lasting.What do you mean by recycling?"Recycling is the process of collecting and processing materials that would otherwise be thrown away as trash and turning them into new products"It will benefit environment as well as us.Hence, the correct option is B) conserve the resources these containers are made from.
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Why must matter be recycled on earth
Answers
Answer:
so we donthave to live on mars in 100 years
Explanation:
Why did the author begin the article by
mentioning the coronavirus?
A
because it underscores a reason why
people have lower immune systems
B
because it shows that people who are
stressed are more likely to get flu-like
illnesses
st
because it highlights a reason why more
Americans are engaging in stress-eating
because it shows that stress-eating can
have a positive effect on those who are
sick
Answers
I think it's because it highlights a reason why more Americans are engaging in stress-eating
The author begins the article by mentioning the coronavirus as a means to set the context for a discussion on stress-related illnesses or behaviors. The specific reason depends on the actual content of the article, but options could include highlighting increasing stress-eating behaviors or situating the pandemic as an example of stress-related illness.
Explanation:
The author likely begins the article by mentioning the coronavirus to set the context for the discussion that follows. Given the options provided, it isn't immediately clear which is correct without reading the actual article. However, let's consider some possibilities. If the author's intention is to highlight a reason why more Americans are engaging in stress-eating, the author could be using the coronavirus pandemic as a backdrop to explain the increased levels of stress and thus, the rise in stress-eating behaviors. Alternatively, if the author wants to show that people who are stressed are more likely to get flu-like illnesses, the mention of coronavirus might serve to provide an example of a flu-like illness that people might contract when their immune systems are weakened due to stress.
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Please help in answering in your own words for thiss:/
Answers
Answer:
Water moves through the Earth's Geosphere by surface runoff and infiltration.
Explanation:
hope this helps !
In 2003, the city of Rochester, New York, began killing weeds with steam. A machine heats water to 280°F then sprays it on the weeds with great pressure. The extreme heat destroys the cellular structure of the plants. What is a possible disadvantage of this method of weed control? *
Answers
Answer:
"The success of the steam application on weed burndown depends on a thorough canopy and stem penetration. For instance, the steam application was found to be relatively ineffective on certain weeds, like pusley, due to their prostrate (creeping) growth nature, which prevents an adequate coverage of steam on the entire plant....some of these weeds are adapted to grow back from the steam burndown." -VSC News
Explanation:
I googled it and found this on a news website, so these are not my words. :) I hope this helps.
Final answer:
The main disadvantage of using steam for weed control is its potential non-selectivity and the need for repeated applications for perennial weeds, along with the high costs and energy use.
Explanation:
A possible disadvantage of using steam to control weeds, as practiced in Rochester, New York, is that while steam effectively destroys the cellular structure of plants, this method might not be selective, potentially harming non-target plants in the vicinity. It also targets only the surface growth, often requiring repeated applications to address regrowth, particularly from perennial weeds. There may also be concerns over the costs and energy requirements associated with generating high-temperature steam for large-scale application.
plz i need help!!! describe three factors that affect the climate of an area.
Answers
Answer:
Three factors are:
1) Distance from the sea
2) Ocean Currents
3) Direction of prevailing winds
Which of the following words best matches this definition: The process in which the best-adapted organisms survive and pass on their traits, while those that are NOT well-adapted do not survive to pass on their traits.
Question 9 options:
Variation
Artificial Selection
Natural Selection
Answers
Answer:
Natural Selection
Explanation:
Natural Selection best-adapted organisms survive and pass on their traits, while those that are NOT well-adapted do not survive to pass on their traits. Thus the correct option is C.
What is natural selection?Those who are unable to evolve are terminated by the harsh conditions of nature. Those who are unable to pass their abilities to survive to their offspring also get wiped off. Those who adapt and reproduce are deemed to be selected naturally to survive hence the term - Natural Selection.
Evolutionists have stated that the Giraffe is an example of an animal that evolved. It developed a long neck to enable it to reach for food far off the ground and on trees when there was a condition that wiped off shrubs available for them to graze on easily off the ground.
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A person with Type O blood has the following alleles for blood group:
a) IBi or IBIB
b) IAIB
c) ii
d) IAi or IAIA
Answers
C, ii, since type O blood is recessive.
Answer:
c
Explanation:
Type O blood is the recessive trait, so you would need both recessive alleles to have type O blood.
Harriet is testing the hypothesis that her cat is faster than her dog in a short sprint. She times her cat, Mittens, as it runs 30 meters. She then times her dog, Mandrake, as it runs the same thirty meters.
Animal
Time (seconds)
Mittens
3.4
Mandrake
4.1
Can Harriet conclude that her cat is faster than her dog?
A.
No; Harriet should race the animals several times before she makes that conclusion.
B.
Yes; since Mittens finished with a faster time than Mandrake, he must be a faster runner.
C.
Yes; since Harriet's data agrees with her hypothesis, it must be correct.
D.
No; Harriet should time her animals at much longer distances before she makes that conclusion.
Answers
Answer:
A.
No; Harriet should race the animals several times before she makes that conclusion.
Explanation:
When you make a conclusion, you have to consider that your data can come out differently each time. After you race them about 5 times or so, collect the data and find the average time of each one, then you will get a basic idea of which one is faster.
Answer:
A.
No; Harriet should race the animals several times before she makes that conclusion.
Explain the 3 functions of enzymes in living organisms
Answers
Answer:
Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways. They are essential for respiration, digesting food, muscle and nerve function, among thousands of other roles.
2) speed up reactions by lowering activation energy
3) making and breaking chemical bonds
Which best describes what happens to a developing fetus during the third
trimester?
A. The external sex organs develop.
B. The limbs form.
C. The organs grow larger.
D. The eyes develop.
Answers
During the third trimester, a developing fetus shows the growth and maturation of numerous organs. Thus, the correct option for this question is C.
What is a fetus?A fetus may be defined as an unborn baby or offspring that develops and grows inside the uterus (womb) of a woman.
The development of the fetus is initiated after 8-9 weeks after the successful fertilization of an egg by a sperm and ends at the time of birth. The development of external sex organs usually takes place in the first trimester typically 6-7 weeks after successful conception.
The formation of limbs occurs in the ninth week of pregnancy or maybe seven weeks after successful conception. The development of eyes generally occurs during the 18-20 weeks after successful conception. Around 27 weeks of pregnancy, the developing baby first opens his/her eyes.
Therefore, during the third trimester, a developing fetus shows the growth and maturation of numerous organs. Thus, the correct option for this question is C.
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How does structure relate to function in organelles such as:
Cell wall:
Vacuole:
Nucleus:
Answers
OK so a cell wall protects just like the walls of a house. Vacuoles are extremely important in providing structural support in a cell, so like beams for supporting structures. And the nucleus is the command center as it consists of many structured elements that allow it to perform its functions.
Which factor is NOT needed to calculate a moving object’s average speed?
A. total time
B. total distance
C. total displacement
-------------------------
An arrow representing the velocity 3 m/s east and an arrow representing the velocity 6 m/s east would have the
A. same direction and same length.
B. different directions and same length.
C. same direction and different lengths.
D. different directions and different lengths.
-------------------------
10. Which equation could be used to solve for the average speed of a car that travels 90 m in 20 seconds?
A- Average Speed= 90m/20s
B- Average Speed= 20s/90m
C- Average Speed= 90m x 20s
D- Average Speed= 20s + 90m
Answers
Answer:
Q1. C Q2. C Q10. A
Explanation:
Q1. Displacement is used to calculate mass, weight, or density.
Q2. Since they have different velocities, but same direction.
Q10. S= D/T (Speed = distance / time)
Answer: Q1.
Explanation:
A farmer grows four different crops on his farm. The table shows the amount of water each of the crops need. One year it is very hot and there is very little rain, 500 mm, and only some crops survive. Which of these crops will MOST LIKELY not survive?
A) Corn
B) Melons
C) Corn and potatoes
D) Tomatoes and melons
Answers
Answer:
D
Explanation:
:)
Given the historically high water requirements of corn, it is most likely that A) corn will not survive drought conditions with limited rainfall.
In general, crops like corn have high water needs and are less likely to survive in conditions of severe water deficit. Corn is known as a C4 plant, which makes it more efficient in photosynthesis under high temperature and light conditions compared to C3 plants, but it still requires adequate water to thrive. On the other hand, traditionally, crops like melons have some drought tolerance.
Additionally, the practice of planting a single crop over a large area is known as monoculture. This can have several consequences, including vulnerability to pests and increased demand for water and nutrients. In contrast, diverse cropping systems can enhance the resilience of the farm to various threats, including droughts and pests.
Identify the equilibrium point between the positively charged and negatively charged spheres.
Answers
Answer:
D!!!!!!
Explanation:
6. Animals have many adaptotions for survival Describe each adaptation
below, and explain how it could help on organism better survive its
environment
A.camouflage
B.mimicry
C.venom
Answers
Answer:
Explanation: camouflage is an adaptation that helps organisms blend in with its surroundings. Blending in helps the animal avoid predators and increases its ability to survive.
Mimicry is an evolved resemblance between an organism and an object which protects them from predators for example how moths evolved to be brown like bark on trees helps them to blend in and reduces their chances of being eaten.
Venom helps animals to immobilise or kill prey or neutralise predators in self defence this benefits the animal because they are less likely to be attacked by predators
Animals have many adaptations for survival. By adapting, the organisms are able to live in their environment in a much better way. These adaptations can be of many types.
What is adaptation?Adaptation in organisms refers to the process by which species change over time in response to changes in their environment. This process, also known as biological evolution, occurs through a combination of genetic variation and natural selection.
Camouflage- It is a type of adaptation that enables an organism to blend in with its surroundings, making it less noticeable to predators or prey. This allows the organism to avoid detection or to approach its prey without been seen.Mimicry-In this type of adaptation, the organisms resemble another organism or an inanimate object in its environment. This allows the mimic to blend in with its environment and avoid detection by predators or to attract the prey.Venom- It is a type of adaptation which enables certain organisms such as snake, spiders, and scorpion to capture prey or defend themselves from against predators. Venom is a toxic substance that is produced through the specialized gland and ejected through special structure, such as fangs or stingers.Therefore, it can be concluded that through the process of adaptation, the organisms are better able to survive in the environment in which they are present.
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A food chain shows the flow of energy in an ecosystem. Choose an ecosystem and describe a food chain of four organisms that includes at least one producer
Answers
Answer:
Environment: Woodland
producer: Maize or corn
primary consumer: locust
Secondary consumer: Lizard
Tertiary consumer: Snakes
Tertiary consumer: Eagles
Explanation:
Final answer:
A food chain in a grassland ecosystem could start with grass as the producer, followed by a zebra as the primary consumer, a lion as a higher-level consumer, and decomposers like bacteria to recycle nutrients.
Explanation:
A food chain shows the flow of energy in an ecosystem by outlining who eats whom, starting with the producer and ending with the apex predator. Let's consider a grassland ecosystem:
Producers: Grasses - They convert sunlight into energy via photosynthesis.
Primary Consumers: Zebras - Herbivores that eat the grass.
Higher-Level Consumers: Lions - Carnivores that eat the zebras.
Decomposers (addition to the food chain): Bacteria and fungi - They break down dead matter, returning nutrients back to the soil.
Decomposers play a crucial role in the food chain by recycling nutrients and maintaining ecosystem health. They are not shown in a simple food chain diagram but are implied as they break down organisms at all levels after deat.
Which of the following does work?
A. An apple growing on a tree.
B. An apple on a table.
C. An apple being pushed across the floor.
Answers
Answer:
C. An apple being pushed across the floor
Explanation:
Do do work, the direction of the force and the motion of the object has to be the same. For example, holding an apple in the air isn’t doing work because the Apple is motionless but the force is going upward from your hand to hold it up. But if you hold the Apple and push it upward then it does work because it is moving upward and you are also pushing upward. Hope this helps!
What are the stages of secondary succession
Answers
Answer:
Sequence of events that occur in secondary succession
Secondary succession is one of the two types ecological succession of a plants life. As opposed to the first, primary succession, secondary succession is a process started by an event (e.g. forest fire, harvesting, hurricane, etc.) ... Seeds, roots and underground vegetative organs of plants may still survive in the soil
Explanation:
mark brainlest plz
Secondary succession involves a disturbance in an environment, the establishment of pioneer species, competition between species for resources, and finally stabilization, with a climax community being formed. Each stage contributes to diversity until stability is achieved.
Explanation:The stages of secondary succession involve various phases from the growth of organisms in an environment after a disturbance to the establishment of a climax community. The stages include:
Disturbance: This is the initial change in the environment which can be natural or human-induced. Establishment: Opportunistic species known as 'pioneer species' colonize the area first, usually plants or lichens. Competition: As more resources become available, other species compete to colonize the area. Stabilization: A climax community is formed once the establishing species are outcompeted.
In all stages, each subsequent appearance of flora and fauna contributes to diversity in the ecosystem until stability is achieved.
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Both GMOs and unmodified heirloom plants are commonly able to pass on genetic material through "Blank" gene transfer without human assistance.
Answers
Answer:
Energy
Explanation:
I honestly don’t know
Answer:
The Answer is Vertical Gene Transfer
Explanation:
I got it right on the quiz!
Can someone help me with this please. 7.
An insertion or deletion can result in a frameshift
mutation. To demonstrate this, complete the following.
Note: You will need a codon chart.
Normal Stand:
DNA:
GCA ATG CAC
mRNA:
Amino Acids:
Deletion Strand
Taking out the first “G” in the original DNA above results in:
DNA:
CAA TGC AC
mRNA:
Amino Acids:
Answers
Answer:
normal strand
mRNA:CGU UAC GUG
amino acids:GCA ATG CAC
Deletion strand
mRNA:(GCA ATG CAC)*
CGU UAC GUG
Amino acids: GCA ATG CAC
From the DNA strand GCA ATG CAC , CGU UAC GUG mRNA is formed. The amino acid sequence is Arg-Tyr-Val. From the DNA, CAA TGC AC, mRNA is GUU ACG UG. Amino acid chain is val-Thr- .
What is a frameshift mutation?A frameshift mutation is a type of mutation that changes the frame of a polypeptide chain. The frame is changed due to the insertion or deletion of mRNA bases. The RNA has a uracil base instead of a thymine base. Here the DNA sequence is GCA ATG CAC. The mRNA will be CGU UAC GUG . The amino acids are added to form polypeptide chains by reading this mRNA. The polypeptide is Arg- Tyr- Val.
After the deletion of the G base from the DNA, the DNA has CAA TGC AC. The mRNA that is formed by transcription is GUU ACG UG. The polypeptide chain is valine–threonine. The two nucleotides don't code for any amino acid. This base change shows the complete change in the polypeptide frame.
Hence, the DNA strand GCA ATG CAC , CGU UAC GUG mRNA is formed. The amino acid sequence is Arg- Tyr- Val. From the DNA, CAA TGC AC, mRNA is GUU ACG UG. The amino acid chain is val-Thr.
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ANSWER FOR 44 POINTS AND BRAINLIEST Janelle wants to buy some strings of decorative lights for her home. She is trying to decide between two strings of lights that are wired differently.
How should Janelle’s lights be wired, and why?
Answers
Janelle should choose decorative lights with bulbs that short circuit when they burn out since the other bulbs will remain lit. The normal operating voltage for 40 bulbs on a 120 V string is 3 V each, and if one bulb burns out in newer strings, the others operate at 3.08 V each.
Janelle is trying to decide how her decorative lights should be wired for her home. The older lights wired in series with bulbs that act like an open switch when burnt out will cause the entire string to go out if one bulb fails. For such a string operating on 120 V with 40 bulbs, each bulb would normally operate at 3 V (total voltage divided by the number of bulbs). On the other hand, newer lights with bulbs that short circuit, behaving like a closed switch when they burn out, will allow the rest of the bulbs to remain lit. With one bulb out, the remaining 39 bulbs on a 120 V string would each have an operating voltage of approximately 3.08 V.
If comparing brightness in bulbs wired in series, the one with the higher resistance (usually the one with the lower wattage rating) will be brighter, due to the voltage division in series circuits. Therefore, a 60 W bulb would typically be brighter than a 100 W bulb when connected in series to household power.
Which of the following is NOT considered a special sense?
A. gustation
B. equilibrium
C. sight
D. touch
WILL MAKE BRAINLIEST
Answers
Answer:
B
Explanation:
Gustation, or taste, as well as sight and touch are all considered special senses. The sense of equilibrium is not considered to be, however. Hope this helps!
The touch is NOT considered a special sense (Option D).
The special senses are different senses which contain specialized organs and cells designed to perform a specific task.The special senses are five and include vision, balance, hearing, taste, and smell.The vision is controlled by the eyes, hearing-balance is controlled by the ear, the smell is controlled by the nose, and the taste is controlled by the tongue.In conclusion, touch is NOT considered a special sense (Option D).
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What can occur in plants and animals that result in changes? (Choose all the apply)
a
random trait mutations
b
modifications
c
growth factors
d
none of the above
Answers
I think the changes will be growth factors
Answer:
i dont even know but i believe it is random trait mutations.
Explanation:
Which statement is correct? Group of answer choices The fossil in Layer A is older than the fossil in Layer B. The fossil in Layer C is older than the fossil in Layer D. The fossil in Layer C is younger than the fossil in Layer A. The fossil in Layer B is younger than the fossils in Layer C.
Answers
Answer:
"The fossil in Layer C is younger than the fossil in Layer A."
Explanation:
In geology and stratigraphy, the principle of superposition states that in a sequence of undisturbed rock layers, the youngest layer is on top, and the oldest layer is at the bottom. This means that as new layers of sediment or rock are deposited, they accumulate on top of older layers.
In the given statement, Layer C is mentioned to be younger than Layer A. This indicates that the fossil found in Layer C was deposited more recently than the fossil found in Layer A. Since the layers are undisturbed and follow the principle of superposition, the fossils in these layers can be dated relative to each other, with the one in Layer C being the more recent of the two.
In dogs, black fur (B) is dominant over yellow fur (b). A heterozygous black dog is matted with a yellow dog. Do a Punnett square to show the cross and predict the offspring.
Answers
This means that there is a 50/50 chance of getting some puppies with full yellow fur but there is another 50/50 chance of then having the dominant gene of black fur but still having the yellow fur gene hidden.