Answer:
They can invade our bodies and make us ill. They can cause infectious diseases like the flu or measles. Hope this helped and if it did then please mark brainliest. Have a nice day.
All of the following are characteristics of modern amphibians except:
Separate sexes
Smooth moist skin
oooo
Endothermic
Bony skeleton
Answer:
Endothermic
Explanation:
Amphibians are ectothermic organisms. Ectothermic animals are coldblooded animals. From the options above, the correct answer is endothermic because amphibians are not hot blooded and are never endothermic.
Wyatt and Darnell are designing an experiment to study water mold reproduction. Water mold is an example of a protist that reproduces both sexually and asexually in a process called alternation of generations. Look at the diagram of the water mold life cycle. At which point is genetic information combined?
In water molds, and other protists exhibiting alternation of generations, genetic information is combined during sexual reproduction, specifically when haploid gametes fuse to form a diploid zygote. Binary fission, multiple fission, and budding represent asexual reproduction where no genetic information is combined.
Protists exhibit diverse reproductive strategies, including both asexual and sexual reproduction. Asexual reproduction in protists can occur through binary fission, multiple fission, or budding, which results in offspring that are genetically identical to the parent. On the other hand, sexual reproduction involves the combination of genetic material from two parents to produce offspring with genetic variation.
In the context of the water mold's life cycle, genetic information is combined during the process of syngamy, where two haploid cells, typically in the form of spores or gametes, fuse to form a diploid zygote. This diploid stage undergoes meiosis to generate new haploid cells that can either grow into new organisms or, under stressful conditions, form cysts that are resistant to harsh environmental factors.
The water mold Saprolegnia is a coenocytic organism that is predominantly diploid. The fusion of a sperm from the antheridium with an egg from the oogonium results in the combination of genetic information, leading to the formation of a diploid zygote. Afterward, this zygote undergoes meiosis and returns to a haploid state, completing the cycle of alternation of generations.
complete questions
Wyatt and Darnell are designing an experiment to study water mold reproduction. Water mold is an example of a protist that reproduces both sexually and asexually in a process called alternation of generations. Look at the diagram of the water mold life cycle. At which point is genetic information combined?
The first choice on a dichotomous key is:
"1A. Are wings covered by an exoskeleton?
vs. 1B. Are wings not covered by an
exoskeleton?" Which organism is separated
from the others by this question? SC.6.L.15.1
help asapp!! dis is a quizz
Answer:
1A- Wings are covered by an exoskeletan. 1B- Ladybug.
Explanation:
I am in 6th grade, so I'm not completely sure if this is correct...
Create a food web with the following organisms. Utilize the internet to identify the organisms as producer, herbivore, carnivore, or omnivore if necessary to assist placing them in the proper trophic level. Producers are at the bottom of the food web. A food web is made of OVERLAPPING food chains; don’t forget your arrows!
Answer:
Hope this helps!!!!!!
First, identify the role of each organism in the food chain: producer, herbivore, carnivore, or omnivore. Then based on their roles and who eats who, draw a diagram placing these organisms in their respective levels and connect them with arrows showing the direction of energy flow.
Explanation:Let's say, for this exercise, we have the following organisms: grass, rabbit, wolf, and bear. First, you need to identify the type of each organism. Here, grass is a producer, rabbit is herbivore, wolf is carnivore, and bear is omnivore. The food web begins with a grass as a producer that is eaten by the herbivore - rabbit. The rabbit, in turn, is eaten by a carnivore - wolf. Finally, the bear as an omnivore, it can eat both the herbivore (rabbit) and carnivore (wolf). The arrows in the food web point from the prey to the predator. Therefore, the food web can be visually created by placing all these organisms in their respective levels and, then connect them using arrows based on who is eating who.
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Add your results to those of your partner to produce a total of 20 tosses. Assuming that you expect ten heads and ten tails in 20 tosses, how close are these results to what was expected?
Answer:
the results are 3 away from being a 50/50 which are expected results
Explanation:
i flipped a coin 20 times and it landed on heads 13 times and tails 7 times
Where in the state of Indiana would you expect to experience earthquakes as a result of the Wabash Valley Fault System?
Central
southwest comer
northeast comer
southern half of the state
If a man is heterozygous (Aa) for a trait, predict his possible sperm
Answer:i know that the first one is the southwest corner
Explanation:
What is the citric acid cycle input
Answer:
(Inputs) 2 Acetyl CoA + 6 NAD+ + 2 FAD + 2 ADP + 2 Pi + 4H2O --> (Outputs) 4 CO2+ 6 NADH + 6 H++ 2 FADH2+ 2 ATP + 2 CoA
Explanation:
Answer: acetyl-CoA is the main one
Explanation:
1. What are the benefits and costs of renewable and nonrenewable resources?
Answer:They include fossil fuels such as oil, natural gas, coal, and uranium used for nuclear energy. Despite this, they have a couple of advantages: The main advantages of non-renewable energies is that they are abundant and affordable. ... Non-renewable energy is cost effective and easier to product and use.
Explanation:
Renewable resources have the benefits of being replenished naturally and having a lesser environmental impact. However, the costs involve initial investment and infrastructure while nonrenewable resources have limited reserves and long-term costs.
Explanation:The benefits of renewable resources include their ability to be replenished naturally and their lower environmental impact compared to nonrenewable resources. Renewable resources, such as wind, water, geothermal, and solar power, do not deplete over time and contribute less to global warming. On the other hand, nonrenewable resources, like fossil fuels and nuclear power, have limited reserves and can have negative environmental consequences.
The costs of renewable resources primarily involve the initial investment in infrastructure and technology needed to harness and utilize these sources of energy. However, over time, the costs of renewable energy have been decreasing as technology advances and economies of scale are achieved.
Nonrenewable resources, although currently more affordable due to existing infrastructure, have long-term costs associated with their depletion, environmental impact, and potential hazards, such as nuclear waste disposal.
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How does a DNA molecule determine which proteins are produced by a cell?
Answer: The order of nitrogen bases along a gene forms a genetic code that specifies what type of protein will be produced.
Explanation:
Please help and explain.
What molecular clock might be useful to examine the evolutionary relationship
between several phyla in the Plant Kingdom? Explain your answer. *
Final answer:
The DNA sequence-based molecular clock is useful to examine the evolutionary relationship between several phyla in the Plant Kingdom.
Explanation:
A molecular clock that might be useful to examine the evolutionary relationship between several phyla in the Plant Kingdom is the DNA sequence-based molecular clock.
This molecular clock compares the DNA sequences of different plant species to estimate how long it has been since these species diverged from a common ancestor. It is based on the assumption that mutations accumulate at a steady rate in a given region of DNA over time. By comparing the number of DNA sequence differences between species, scientists can determine the level of relatedness and the time of divergence.
For example, if two plant species have fewer DNA sequence differences, it suggests a more recent common ancestor, indicating a closer evolutionary relationship. On the other hand, if two plant species have more DNA sequence differences, it suggests a more distant common ancestor, indicating a more distant evolutionary relationship.
Hydrolysis of polymer will produce ?
Answer:
Monomers.
Explanation:
The process of hydrolysis, reactions tends to breakdown polymers into monomers when they react with water, this process is easily seen as the opposite of dehydration synthesis which only forms water during polymer synthesizing from monomers. Hydrolysis also breaks bonds and release energy during the course of its reactions.
The formed synthesis here, is described as a molecule that forms the basic unit for polymers, they form the basic structures of proteins. Monomers also tend to bind with other monomers to form cycles of chain molecules through polymerization.
The hydrolysis of a polymer typically yields monomers, the initial small molecules that made up the polymer. This happens through the breaking of bonds in the polymer chain, facilitated through the addition of water.
Explanation:The hydrolysis of a polymer typically produces monomers, the small molecules from which the polymer was originally formed.
This process involves the breaking of bonds in the polymer chain, facilitated by the addition of water. For instance, when a polyester polymer undergoes hydrolysis, it produces monomers like carboxylic acids and alcohols. Similarly, the hydrolysis of a protein, which is a peptide polymer, generates amino acids.
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Read the following scenarios and answer the question in each one.
15. A 17-year-old linebacker for the high school football team had a helmet-to-helmet collision with the running back
from the opposing team. The linebacker was assisted off the field and evaluated by the trainer, who
recommended that he be evaluated in the emergency room. The MRI in the emergency room showed bruising of
the cerebral tissue. What is the diagnosis for this patient?
The diagnosis for this patient in the given scenario is - Cerebral contusion
Cerebral contusion
It is a form of traumatic brain injury in which found bruises of the brain tissue like in this case MRI showed bruising of the cerebral tissue. In this case, the collision of both players leads to cerebral contusion.
A cerebral contusion can lead to microhemorrhages, small blood vessel leaks into brain tissue. A cerebral contusion occurs due to severe head injuries. This could result in a fatal condition.
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The linebacker's diagnosis is likely a concussion, a common form of traumatic brain injury in contact sports like football.
Explanation:The diagnosis for the 17-year-old linebacker who experienced a helmet-to-helmet collision and showed bruising of the cerebral tissue on an MRI is most likely a concussion. This is considered the mildest and most common type of traumatic brain injury (TBI) and can cause symptoms like headache, drowsiness, and confusion. Football is a contact sport where the risk of concussions is significant despite the use of helmets.
What pattern is described by the theory of punctuated equilibrium? Punctuated equilibrium
Answ
paces of species
Explanation:
The theory of punctuated equilibrium in evolutionary biology posits that long periods of stability in species are interspersed with brief phases of rapid evolutionary change. This concept, proposed by Eldredge and Gould, contrasts with gradualism, which argues for steady evolutionary change over time.
Understanding Punctuated Equilibrium
The theory of punctuated equilibrium describes a pattern in the evolutionary process. According to this theory, the evolution of species is marked by long periods of relative stability or stasis, interrupted by short, but significant phases of rapid evolutionary change. This model contrasts with gradualism, which suggests that evolutionary change occurs slowly and steadily over time. The concept of punctuated equilibrium was first proposed by paleontologists Niles Eldredge and Stephen Jay Gould in 1972.
Drawing from fossil records, this model observes that species often remain unchanged for extended intervals—a phenomenon known as stasis. Evolutionary transformations appear more abrupt in geological terms, happening over thousands or maybe a few million years, which still seems sudden compared to the lifespan of most species. This rapid change is usually associated with speciation events, where new species are formed.
Therefore, punctuated equilibrium is a model of the timing of evolution, highlighting how long periods of little evolutionary change are punctuated by bursts of rapid evolutionary change. It's important to note that these periods of rapid change are not instantaneous but are rapid in comparison to the long periods of stasis that precede them.
Which of the following is a non renewable resource?
A.hydropower
B.Solar
C.Petroleum
D.Biomass
Answer:petroleum
Explanation: Others can be renewed
c. a snickers bar has 29 grams of fat.
2. An example of qualitative data is:
a. a snickers bar has chocolate, peanuts, and
caramel in it.
b. a snickers bar weighs 4 ounces.
d. a snickers bar is 180 calories.
Darwin developed the theory of evolution. Which of these observation is the best evidence for the theory of evolution?
Humans have very diverse traits today.
There appear to be missing links in the evolutionary chain.
Life on earth has been found to date back billions of years.
D)
DNA found in older primate fossils resemble those of humans today
30)
According to Darwin's theory of evolution, which organisms are BEST able to survive in nature?
Answer:
DNA found in older primate fossils resemble those of humans today
Explanation:
40 POINTS!!!!!!!
You have been given charge of 40 adult wild wolves. This pack of wolves includes 20 males and 20 females.
Your assignment is to create offspring from these wild wolves that are tame enough for humans to have as indoor pets.
Answer the following questions each in a separate paragraph: When writing the explanations be sure to provide at least a paragraph on each to answer each question.
A) Explain to step by step how you would go about this task
B) Explain what sort of time frame you think this project will take and why.
C) Explain why this scenario is both similar and different from how dogs evolved
D) Explain why this scenario is both similar and different from how house cats evolved
is c I think, I'm not sure tho!
Answer:
a) First I would separate the males and females. Make sure that they have the ability to create offspring. See how each male and female react to each other. Make sure that they can stand being next to each other without fighting.
b) I think I would be able to do this within two months. I say within two months because trust takes time to build and animals comfortably level next to each other also takes time to build. They should be able to stay a whole night in the same area without fighting.
c) Wolves and dogs are similar in this case because its up to the female when she is ready to mate with the male. And sometimes the female might not want offspring with a certain male of the group but with a different one. It's also different because with wolves, they want to eat you. With dogs, trust can grow to the point of rolling in the mud together and tolerate you and other humans.
d) Cats are unpredictable. You can cuddle one moment and it scratch you the next out of nowhere. It probably did give off signs of it not wanting to be in the mood that you missed. And female cats might have the same problem of wanting to choose it mate. And they are not similar to a wolf or dog. Dogs and wolves howl and cat meow.
Hope I helped, this was fun to type ^-^
Plants have large central vacuole. What is the function of the central vacuole in plants?
Answer:
To store things in the cell.
Explanation:
Answer:
Storage.
Explanation:
In plants, a large central vacuole is usually found in a mature cell. It is lined with a membrane and filled with the cell sap. Cell sap acts as a store house for many substances including excretory products.
They are located in both animal and plant cells and are way larger in plant cells. Vacuoles stores food and different varieties of nutrients, a cell might need to survive. They can even store waste products so the rest of the cell is protected from contamination.
Emily (who is 5.5 feet tall) wants to measure the height of a tree in the
forest near where she lives since there is a big storm approaching and she
is worried that it might fall over and hit her house if it is too tall. If she can
see the top of the tree at an angle of 46.4 degrees and if she estimates the
distance between her house and the tree to be 100 feet, is the tree tall
enough to hit her home?
Answer:
YES
Explanation:
Here apply the formula for tangent of an angle to find height of the tree
Distance from house to tree is 100 ft = adjacent side
Tan ∅ = opposite side/adjacent side
Tan 46.4° = height of tree/100
h= 100 tan 46.4° = 105.01 ft
Given height of Emily is 5.5 ft, add this to 105.01 to find total height of the tree
=105.01 + 5.5 =110.51 ft
The tree is tall (110.51 ft) enough to hit her home which is 100 ft away from the tree.
what is the difference between milk and buttermilk?
Answer: The answer is, Therefore, the main difference between milk and buttermilk is that the first one is the natural product that is obtained from the mammary glands of female beings whereas buttermilk is the name for milk from whom all the butter and cream removed so that the liquid that is left behind can last for a long time
Explanation:
Answer: The deffrence is one has butter in the milk
Explanation:
Hope it helps
Atomic radius blank as the atomic number increases across the period.
Answer:
The atomic radius of atoms generally decreases from left to right across a period. ... Within a period, protons are added to the nucleus as electrons are being added to the same principal energy level. These electrons are gradually pulled closer to the nucleus because of its increased positive charge
Explanation:
hope this helped
All BUT one is an example of a invasive species. That is
Answer:
Notable examples of invasive plant species include the kudzu vine, Andean pampas grass, and yellow starthistle. Animal examples include the New Zealand mud snail, feral pigs, European rabbits, grey squirrels, domestic cats, carp and ferrets.
Hope I'm right! : )
Answer:
C) tomato plants brought into a garden and given the opportunity to grow and thrive without any harm to any other plant species.
Explanation:
The one that is not an invasive species would be that tomato plants brought into a garden and given the opportunity to grow and thrive without any harm to any other plant species. In order to be invasive, a species must be introduced,have no natural predators or competitors, reproduce rapidly, and cause a problem to the native species. All of these are example of species that have been introduced and have led to environmental problems except the example with tomatoes.
Which rock layer in figures 1 and 2 are about 500-600 million years old?
Answer: layers F and L
Explanation:
They are the lowest the younger layers are at the top.
Compare the benefits of natural change to ecosystems to the disadvantages.
Answer:
(Natural changed to the ecosystem relate to environmental shock that occur naturally. Natural changes include floods, volcanic activity, hurricanes, etc. They can be destructive, but they also have advantages. Floods have the contribution of nutrients to the soil which was lacking. It can also relocate fishes and organisms living in bodies of water which improves the ecosystem.)
Explanation:
Edg 2020
Do you think you can live without one of your organ systems? Explain.
help plzzzzzzzzzz. could a genetically engineered organism hybridize with a wild animal or plant? why or why not?
SO CONFUSED
Elizabeth and Benjamin are investigating the forces that result from electric charges. They rub inflated balloons with wool cloth. Which of the following observation supports the claim that the balloons have the same electric charge?
A)Not all the balloons were rubbed with wool.
B)The balloons were all about the same size.
C)The balloons repelled each other without touching.
D)The balloons are made of thin material.
Answer: Option C.
The balloons repelled each other without touching.
Explanation:
The balloons repelled each other without touching is an observation that the balloons has electric charge.
Electric charge is of an object either positive or negatively charge.
The balloons are positively charged that is why they repel each other. The objects that are positively charged repel each other. That is positively charged ballin will exert a repulsive force against another positively charged balloon.
Final answer:
The observation that supports the claim that the two balloons have the same electric charge is that they repel each other without touching, indicating they are both negatively charged due to the transfer of electrons from the wool cloth. (option C)
Explanation:
When Elizabeth and Benjamin investigate the forces that result from electric charges, they discover that when two balloons rubbed with wool cloth repel each other without touching, this observation supports the claim that the balloons have the same electric charge.
This phenomenon is explained by the principle that like charges repel each other, which is a basic concept in static electricity.
In the PhET Explorations simulation 'Balloons and Static Electricity', it is possible to visualize how rubbing the balloons with a sweater transfers negative charges to the balloon, and similarly charged objects will repel each other, just as the balloons do after being rubbed with wool.
What type of energy occurs when a sock is stuck to a blanket when it is taken out of the dryer?
Answer:
static electricity
Explanation:
Static electricity is the buildup of electrical charge in an object. Sometimes static electricity can suddenly discharge, such as when a bolt of lightning flashes through the sky. Other times, static electricity can cause objects to cling to one another. Think of how socks fresh out of the dryer stick together
A fly has two alleles for the color of its eyes. The green allele is recessive, and
is represented by q. The blue allele is dominant, and is represented by p. If 29
of 100 organisms are green, what is q?
Homozygous dominant + Heterozygous + Homozygous recessive = 1
p+ 2pq + q^2 = 1
A. 0.71
B. 0.46
C. 0.29
D. 0.54
The equations of the Hardy-Weinberg equilibrium are useful to get allelic and genotypic frequencies. In the example q = 0.538 ≅ 0.54 . Option D. 0.54
What is the Hardy-Weinberg Equilibrium?
The Hardy-Weinberg equilibrium theory states that allelic and genotypic frequencies remain the same through generations in a population that is in equilibrium.
Assuming a diallelic gene,
The allelic frequencies in a locus are represented as
The frequency of the dominant allele f(X) is pThe frequency of the recessive allele f(x) is qThe genotypic frequencies after one generation are
p² (H0m0zyg0us dominant genotypic frequency), 2pq (Heter0zyg0us genotypic frequency), q² (H0m0zyg0us recessive genotypic frequency).The addition of the allelic frequencies equals 1
p + q = 1.
The sum of genotypic frequencies equals 1
p² + 2pq + q² = 1
In the exposed example, the gene coding for eye color is diallelic.
B is dominant and codes for blueb is recessive and codes for greenN = 100 individuals
Green eyed individuals = 29
Blue eyed individuals = 71
The frequency of green eyed individuals is 29/100 = 0.29 ⇒ q²The frequency of blue eyed individuals is 71/100 = 0.71 ⇒ p² + 2pqIf q² = 0.29, then
q = √0.29
q = 0.538
If q = 0.538, then the value of p can be calculated by clearing the following equation
p + q = 1
p + 0.538 = 1
p = 1 - 0.538
p = 0.462
We can use the p value to calculate p²
If p = 0.462, then
p² = 0.462²
p² = 0.2134
And the frequency of the heter0zyg0us genotype is
2pq = 2 x 0.462 x 0.538
2pq = 0.497
p² + 2pq + q² = 1
0.213 + 0.497 + 0.29 = 1
The frequency of the recessive allele is q = 0.538.
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A species of fly lacks wings. How would biologists explain how a species of fly without wings evolved from an ancestral fly species with wings ?
Answer:The species of fly did not need the wings because of its specific environment.The species of fly did not need the wings because of its specific environment.
Explanation: The species of fly did not need the wings because of its specific environment.
The species of fly did not need the wings because of its specific environment.
Biologists can explain how a species of fly without wings evolved from an ancestral fly species with wings through environmental adaptedness.
Environmental change is any change in an ecosystem or environment that warrens adaptability from the inhabiting organisms in order to survive. The ability to adapt to these changes is known as environmental adaptedness. This is a form of evolution in which an organism will generate or loose characteristics in response to changes in its way of life.
Biologist can explain how a species of fly without wings evolved from an ancestral fly species with wings through environmental adaptedness because the presence of unnecessary wings would have caused the expenditure of energy with no benefit to the fly, therefore, the offspring of a fly who lives in an environment which has no need for the ability to fly will gradually loose their wings in order to retain more energy and function more efficiently. This is evolution through environmental adaptedness.
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