Answer:
Contents
Animal tissues
2 Plant tissues
2.1 Meristematic (forming) tissue
2.2 Roofing fabric
2.3 Parenchymal tissue
2.4 Conductive tissue
2.5 Excretory tissue
2.6 Mechanical tiss
Both species of garter snakes prey on the California newt, Taricha torosa, a small amphibian that produces a potent neurotoxin (TTX) in its skin. However, neither species of garter snake is affected by TTX. The resistance to TTX is associated with mutations in the SCN4A gene. Which of the following best supports a claim that
a. TTX resistance arose independently in T.
b. atratus and T.
c. sirtalis
Complete question:
Both species of garter snakes prey on the California newt. Taricha torso, small amphibian that produces a potent neurotoxin (TTX) in its skin. However, neither species of garter snake is affected by TTX. The resistance to TTX is associated with mutations in the SCN4A gene. which of the following best supports a claim that TTX resistance arose independently in T. atratus and T. sirtalis?
A. The stomach contents in fossils of both species include the remains of food items that contains TTX.
B. Both species of snakes possess the SCN4A gene.
C. The two species of snakes have different genetic mutations in the SCN4A gene.
D. T. atratus and T. sirtalis are sister species that share many of the same morphological features.
Answer:
C. The two species of snakes have different genetic mutations in the SCN4A gene.
Explanation:
These are two different species that feed on the same amphibian species and that developed resistance to TTX. Resistance to the toxic is associated with mutations in the SCN4A gene. So probably both species by separated developed different mutations in the gene that led them to be resistant to the toxin.
Supporting the fact that natural selection is not random, both species might have become resistant to TTX through different mutations in the same gene. Both species are feeding on the California newt that produces neurotoxin in the skin. Animals that feed on this amphibian need to be resistant to the toxin to avoid death and keep preying. TTX might be acting as a modeling pressure that led snakes to develop resistance to the toxin, favoring the same phenotype but independently.
A. The stomach contents in fossils of both species include the remains of food items that contain TTX. → Food items with TTX in the stomachs do not mean that species were resistant to the toxin. And if they were, it does not mean that species developed the resistance independently or not.
B. Both species of snakes possess the SCN4A gene. → The fact that both species have the gene does not mean that they have mutations in the gene
C. The two species of snakes have different genetic mutations in the SCN4A gene. → That both species have different mutations in the same gene means that they evolved independently from each other. They suffered different mutations in the same gene that led them to express the same resistance phenotype.
D. T. atratus and T. sirtalis are sister species that share many of the same morphological features. → Morphological features do not necessarily reflect molecular features. The fact that they are similar sister species does not say anything about the SCN4A gene.
The condition that best supports this experiment is the two species of snakes have different genetic mutations in the gene described above.
What do you mean by Mutations?Mutations may be defined as sudden, stable, and inheritable changes in the genetic material of an organism.
Both species of snake have different mutations in the same gene means that they evolved independently from each other. They undergo different mutations in the same gene that led them to express the same resistance phenotype.
Therefore, the condition that best supports this experiment is the two species of snakes have different genetic mutations in the gene described above.
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Water pressure is due to the weight of the water above a particular point.
Please select the best answer from the choices provided
T
F
Identify the sections of the mid-oceanic ridge that have reversed polarity on the right side of the ridge.
Normal magnetic
polarity
Reversed magnetic
polarity
Mid-ocean ridge
Lithosphere
Magma
Answer:
Normal And Mid-Ocean
Explanation:
Just did it and it was right :)
Based on the magnetism on the seafloor, the sections with reversed polarity on the right side are shown as the grey areas in the diagram attached.
Magnetism on the seafloor
Leads to ridges having reversed and normal polarity.These ridges often alternate.The first ridge to the right will have a normal polarity. The next ridge will be reversed and this trend will then repeat till the end.
Find out more about reversed polarity at https://brainly.com/question/14382969.
person who studies inscets
Answer:
An entomologist
Explanation:
ppppppppppppppppppppppppp
Answer:
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
Explanation:
:> tank u for pointe
UwU
Give an example of physical evidence used to organize Earth’s history on the geologic time scale.
Answer:
The Earth is 4.6 billion years old. Some examples of events listed on the geologic time scale include the first appearance of plant life on Earth, the first appearance of animals on Earth, the formation of Earth's mountains, and the extinction of the dinosaurs.
Explanation:
please mark this answer as brainliest
Why is it important for international organizations to work together on environmental policy?
Answer:
Environmental issues don't regard borders. They can compile all of their thoughts together to critically analyze the environmental issues that we face around the globe.
Explanation:
How many years does a snake live and how many times does it change its skin without pictures please and without links
Answer:
9 years
Explanation:
Boa constrictor: 30 years
Boa constrictors are native to North, Central, and South America, mainly dwelling in rainforests. The lifespan for the large, heavy-bodied snake averages about 20 years in the wild, but living in captivity can increase that by 10 to 15 years.
Answer: Some types of snake can live for 2-3 decades, such as the boa constrictor, whereas others, such as garter snakes, will be fortunate to reach 10 years of age. On averge a snack changes its skin up to 2-4 times a year.
Explanation:
Which of these events is a likely result of thermal water pollution? O A. Sediment particles floating in water clog the gills of fish. B. Algae are killed by solvents that have run off into a pond. O C. Fish die from lack of oxygen due to an algal bloom. D. Rainbow trout disappear from a stream because of high water temperatures.
Answer:
D is the answer
Explanation:
This is the only answer that specifically references a thermal effect.
The events is a likely result of thermal water pollution is Rainbow trout disappear from a stream because of high water temperatures. Thus, option "D" is correct.
What is water pollution?Water pollution occurs when materials are disposed in water body, thus making it unfit for use. A polluted water can not be used for various purposes that water can be used for. Examples include: recreation, drinking, washing etc.
Water scarcity is the situation when available water is not sufficient for the use of organisms in a community. This majorly occurs in arid area.
Thus, option "D" is correct.
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#SPJ2
PLEASE HELP TAKING TEST NOW NO LINKS PLEASE!!!!!!!!!!!!!! In an ecosystem with low biodiversity, the removal of a species will (1 point)
O not affect the ecosystem because another species will take its place.
o disturb the ecosystem because another species will not be able to replace it.
o not affect the ecosystem because another species will not be able to replace it.
disturb the ecosystem because another species will take its place.
Answer:
disturb the ecosystem because another species will not be able to replace it.
Explanation:
Difference between palisade cell and fungal cell
Answer:
Explanation:
Plantae and Fungi are two of the three main kingdoms in the domain Eukaryote (the third group is Animalia, which includes you and me).
Many fungi grow in a way that’s similar to plants. They inhabit similar ecosystems and may even form symbiotic relationships together. Mycorrhizae are fungi that grow on the roots of plants, helping the plants take up nutrients in the soil while the plant provides the fungus with sugar. Of course, most fungi don’t look much like plants.
But the differences between fungi and plants are more than just skin (or bark) deep. While mushrooms often inhabit similar ecosystems to plants, molds and yeasts are even more different from plants!
Looking at a plant cell and a fungi cell under a microscope will reveal some interesting similarities and differences.
Bird species from temperate regions must cope with relatively short breeding seasons. A study examined the relationship between blood testosterone level (ng/ml) and the duration of the egg-laying period (months) in temperate bird species. The scatterplot below displays this relationship, after taking the logarithm of each variable. A plausible value for the correlation between the logarithm of egg-laying duration and the logarithm of testosterone level is
Answer:
The answer is "-0.4".
Explanation:
In that situation, the value of the possible correlations between the egg-laying logarithm as well as the testosterone level logarithm is equal to 4 It value is equal to the percentage 4=-0.4.
Which type of mutation does the model demonstrate?
Answer:
G
Explanation:
TATC is being inserted into the sequence
Using the figure, match the following
The muscle fiber (cell) is indicated by
Label A
Label B
Label C
Label D
Answer:
Hope it helps
Explanation:
The label A represents mitochondria.
The mitochondria are also called the powerhouse of the cell which converts glucose to energy-rich molecules of ATP.
Label B represents the nucleus.
The nucleus contains the genetic material or DNA, RNA, nucleolus, chromatin fibers, and proteins. It contains the chromosomes which control the hereditary characteristics.
Label C represents the lysosome.
Lysosomes contain digestive juices which break down large cell parts and large molecules and help in intracellular digestion.
Label D represents rough endoplasmic reticulum having ribosomes.
The rough endoplasmic reticulum provides a surface for protein synthesis. It is also used to transport cellular contents from one cell to another.
How did Robert Koch proved the germ theory disease
Answer:
In the final decades of the 19th century, Koch conclusively established that a particular germ could cause a specific disease. He did this by experimentation with anthrax. Using a microscope, Koch examined the blood of cows that had died of anthrax. He observed rod-shaped bacteria and suspected they caused anthrax.
answer and show proof and ill give brainliest
Answer:
Explanation: negative human impact on the pH of Earth’s oceans can be reduced.
plants get ____ from animals.
Answer:
carbon dioxide
Explanation:
plants get carbon dioxide from animals.
as well as animals get oxygen from plants.
Which event is responsible for the genetic variation seen from meiosis?
1
Homologous chromosomes exchange RNA with one another.
Sister chromatids exchange ribosomes with one another.
Homologous chromosomes exchange DNA with one another.
Sister chromatids exchange amino acids with one another.
Answer:
Homologous chromosomes exchange DNA with one another.
Explanation:
During crossing over, the two Homologous chromosomes line up next to eachother and the DNA "crosses over" changing the genes on the chromosome.
Im having trouble with this
Do students learn more when they are hungry? I don’t think so. We should have a vending machine at our school because people get hungry in the middle of the day, it would raise money for sports and clubs, and students would learn more.
Answer:
No they will not learn more because thier mind will in food and they will not understand
draw and label a diagram of the water cycle using the words below.
Gravity
Sunlight
Evaporation
Condensation
Precipitation
water cycle
Transpiration
Runoff
human disruption of the carbon cycle has been implicated in..?
Answer:
D. Climate change
Explanation:
The carbon cycle is disrupted by several activities of man which includes burning if fossil fuels anong others. These leads to accumulation of huge amounts of carbon dioxide in the atmosphere which leads to global warming. The resultant effects of global warming is what one of the major cause of climate change.
Therefore, human disruption of the carbon cycle can be said to have been implicated in climate change.
What do we call the area of Earth,
from the top of the highest mountain
to the bottom of the ocean, in which
all life exists?
A. atmosphere
B. life bubble
C. biosphere
give proof and show work and ill give brainliest
Answer:
An outbreak of a disease that infects squirrels in the park.
Explanation:
All the other answer choices would increase the population of squirrels. For the first option, more trees = more habitats = more squirrels to live in. For the second option, less hawks = less predators = more squirrels that will survive. For the third option, heavy rain = more acorns = more food for more squirrels.
Only the last option would limit the growth of a population of squirrels since diseases kill organisms in a population.
Under certain conditions, it is possible to get more work out of a machine than you put into it.
Please select the best answer from the choices provided
T
F
Answer:
f :)
Explanation:
HELP PLEASE!! Field test is done on the milkweed in the wild and the clothianidin content per plant was about 1 ppb. larvae spend days in the wild eating the milkweed. how is this different from the experimental conditions? how would you design an experiment to test these conditions?
Answer:
In the question it is given that the milkweed with clothianidin above the 1ppb concentration will result in less successful hatching of monarch butterfly eggs. Along with the data from the experiments, the exposure of clothianidin on the monarch habitats will lead to a decrease in the population of the monarch butterfly initially. Then in later generations if any mutation occurs and a resistant butterfly is developed then the population of the monarch butterfly will recover. But without this mutation the population size will be reduced and the size and weight of the butterfly will also get reduced.
Explanation:
Chloroplasts require oxygen.
True
Or
False??
Answer:
yes true because The oxygen released by the chloroplasts is the same oxygen you breathe every day.
Explanation:
The joints in all of your fingers are _________________________ joints.. Single line text.
Answer:
I believe they would be h_i_n_g_e.
Explanation:
The Fingers can only move so much unlike the thumb.
Answer:
Explanation:
proximal interphalangea joint metacarpophalangeal joint distal interphalangeal joint
Which greenhouse gas is produced by commercial refrigeration and air conditioning systems?
carbon dioxide
fluorinated gas
nitrous oxide
methane
answer:
-- b), fluorinated gas
hope this helps.
The greenhouse gas that is produced by commercial refrigeration and air conditioning systems is fluorinated gas.
WHAT IS GREENHOUSE GAS?A greenhouse gas is a gas that has the ability to trap and release heat energy into the atmosphere.
Greenhouse gases are the major causes of global warming, which is the rise in the global atmospheric temperature.
Examples of greenhouse gases are carbon dioxide, methane, fluorinated gas etc. Therefore, greenhouse gas that is produced by commercial refrigeration and air conditioning systems is fluorinated gas.
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How does overpopulation harm a species?