Answer:
The Canals made shipping more efficient, but as an unintended consequence also allowed rapid expansion of the zebra mussel's range. By the 1830s, these mussels covered much of Europe and Britain.
Successful introduction of zebra mussels into the Great Lakes probably occurred in 1985 or 1986, after transoceanic ships discharged contaminated ballast water from foreign ports into lakes St. Clair and
Zebra mussel is a freshwater organism that belongs to the phylum Mollusca and is invasive species. They can spread quickly as they are small and can spread by the water current.
What is a Zebra mussel?Zebra mussels are the Molluscans that are composed of the outer hard shell and are found in the freshwater rivers and lakes. It was unintentionally transported to the new ecosystem.
They are small and free-swimming organisms that can easily flow and transport through the water currents and can easily attach to the surfaces of the rocks, fishes and vessels.
Therefore, zebra mussels can spread quickly.
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Rounded rock formations with plant covering. A scientist is studying rock formations. She notices some unusual rocks like those pictured here. What can she conclude about this area? It was part of a slow underwater eruption. It was formed at a subduction zone. It is moving toward a mid-ocean ridge. It is a very young piece of land.
The rock formations are the result of the weathering of the big and large rocks by wind and water erosion. The conclusion is that rocks were part of a slow underwater eruption.
What is the formation of the rocks?Rocks can be formed due to volcanic eruptions as when the magma of the volcano rises outwards but, in the underwater surfaces, the magma can't completely rise to the outer surface and faces some pressure.
The oceanic water creates very heavy pressure on the magma of the volcanoes causing them to form some unusual structures that later solidifies into rocks.
Therefore, option A. is part of a slow underwater eruption.
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Answer:
A. It was part of a slow underwater eruption.
Explanation:
Primary malignant tumors arising from the bone marrow of long bones in children and young adults usually causing localized pain are indicative of:
What two types of cells did the stem cells differentiate into.
Answer:
Stem cells are divided into 2 main forms. They are embryonic stem cells and adult stem cells. Embryonic stem cells.
Describe an example of a feedback loop in nature or in your everyday life.
What is a feedback loop?
Answer:
A feedback loop is the part of a system in which some portion (or all) of the system's output is used as input for future operations.
Answer: A thermostat is one example of a negative feedback loop, because when the temperature gets too high or too low, the thermostat responds in a way that returns it to its original temperature.
Explanation:
sample answer
The term ____________ is used to describe genes that do not determine gender, but are carried on the X chromosome.
Answer:
x linked is the answer mark me brainiest if correct
Explanation:
Are most chemical reactions in living cells at equilibrium?.
Answer:
Most chemical reactions are not at equilibrium in living cells. This is because at equilibrium a system has minimized free energy.
Janet’s sister has cystic fibrosis, which is disease caused by recessive genes. Neither of her parents has the disease. What is the chance that her mother is a carrier (heterozygous) for the trait? What chance is there that Janet herself is a carrier?
The chance that Janet’s mother is a carrier (heterozygous) for the trait is 100 percent. It is a recessive disease.
What is a recessive disease?A recessive disease is a type of disease that only expresses when both recessive alleles are found in the genotype.
In this case, cystic fibrosis is a recessive disease caused by a mutation in both copies of the Cystic fibrosis transmembrane conductance regulator (CFTR) gene.
In consequence, the only way of inheriting this disease is by receiving one allele from each parent.
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Interphase consists of what part of the cell cycle?
Answer:
This is DNA replication
Explanation:
G1 --> S --> G2 --> PMAT
Describe how the DNA in a cauliflower plant is similar to and different from the DNA in Brussels sprouts.
Answer:
Cabbage is a different story. Per capita consumption of it peaked way back in the 1920s, when the average American ate 22 pounds of it per year. Nowadays, we eat about eight pounds, most of it disguised as cole slaw or sauerkraut.
This makes it pretty interesting that kale and cabbage — along with broccoli, Brussels sprouts, cauliflower, collard greens, and kohlrabi, and several other vegetables — all come from the exact same plant species: Brassica oleracea.
In some circles, kale has become really, really popular. Once a little-known speciality crop, its meteoric rise is now the subject of national news segments. Some experts are predicting that kale salads will soon be on the menus at TGI Friday's and McDonald's.
While swabbing objects to sample bacteria, you want to create a negative control to ensure that you are practicing proper aseptic technique. You place an applicator in the sterile broth, and spread it on an agar plate without swabbing any surfaces. Which result would yo see from a properly prepared negative control?.
Answer:
no bacteria. took the test and got it right :)
Explanation:
The result which would be seen from a properly prepared negative control is nothing.
What is a Negative control?
This type of control is used to test and ensure that in the absence of the antigen we do not still get a positive reaction.
Since proper aseptic technique was practised and there was no swabbing of the surface then there would be nothing seen in the properly prepared negative control.
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For most stars, what does a higher temperature tend to go with?
O A lower luminosity
O A higher luminosity
O A red color
O None of the above
Answer:
A higher luminosity
Explanation:
Luminosity is the apparent brightness of a star. Temperature impacts the luminosity as the hotter the temperature is, the more energy/reactions there is, which results in a higher luminosity.
1)Explain the Genotype of the parents
2)Set up the Punnett Square
3)Explain how to complete the punnett square
4)Explain the genotypic ratio
5)Explain the phenotypic ratio
Answer:
1)Explain the Genotype of the parents
Each parent contributes one allele to each of its offspring. Thus, in this cross, all offspring will have the Bb genotype. Each parent contributes one allele to each of its offspring. Thus, in this cross, all offspring will have the Bb genotype.
2)Set up the Punnett Square
STEP-BY-STEP: HOW TO SET UP A PUNNETT SQUARE
Example
Step 1: Write out the cross T = tall, t = short Tt x Tt
Step 2: Draw 2 by 2 Punnett square
Step 3: Write the alleles for parent 1 on
the left side of the Punnett square.
Step 4: Write the alleles from parent 2
above the Punnett square.
Step 5: Fill in the squares for parent 1.
Step 6: Fill in the squares for parent 2.
3)Explain how to complete the punnett square
STEP-BY-STEP: HOW TO SET UP A PUNNETT SQUARE
Example
Step 1: Write out the cross T = tall, t = short Tt x Tt
Step 2: Draw 2 by 2 Punnett square
Step 3: Write the alleles for parent 1 on
the left side of the Punnett square.
Step 4: Write the alleles from parent 2
above the Punnett square.
Step 5: Fill in the squares for parent 1.
Step 6: Fill in the squares for parent 2.
4)Explain the genotypic ratio
The genotypic ratio is the ratio depicting the different genotypes of the offspring from a test cross. It represents the pattern of offspring distribution according to genotype, which is the genetic constitution determining the phenotype of an organism.
5)Explain the phenotypic
Phenotypic variation, then, is the variability in phenotypes that exists in a population. For example, people come in all shapes and sizes: height, weight, and body shape are phenotypes that vary. Hair, eye color, and the ability to roll your tongue are variable phenotypes, too.
A phenotype is an individual's observable traits, such as height, eye color, and blood type. The genetic contribution to the phenotype is called the genotype. Some traits are largely determined by the genotype, while other traits are largely determined by environmental factors.
Mendel's law of ____________ states that genes are not inherited together offspring can inherit any combination of its parent’s genes
Answer:
the answer is independent assortment
Can someone help me with this question? Thank you!!
Answer:18 kcal
Explanation:
Law of ecological pyramid - the production of organisms of each subsequent trophic level is always on average up to 10 times less than the production of the previous one
1800/10=180
180/10=18
Answer:
18 kcal
Explanation:
it loses 10 times less energy so just divide by 10 up
How does your protein support the cross- concept of structure and function? If there was a mutation in the DNA that altered several of the amino acids in your protein structure, how would that alter the structure and function of the protein? Why might that be good or bad for the organism?
Answer:have a great day
Explanation:
Which of the following is an example of an autotroph?
Answer:
An organism that can provide itself with natural and nutritional substances from non-natural substances.
Example ↓
The potted plant in that window across the street.
Plankton.
Bacteria.
The medicine in the diagram above has molecules that are moving
around eachother. The doctor needs to slow down the molecules enough
to cause a phasechange. How will she do this, and how will this affect the
medicine?She transfers energy...
Answer:
I think it's c "Out of the medicine until it is a solid
Explanation:
Since the pill and container is a solid
No matter how long and hard lerae studies, she always feels she hasn't studied as much as she should have. A freudian psychologist would suggest that lerae shows signs of a
Which of the following does not explain the importance of mangrove forests? a. They provide shelter to organisms on high energy coasts. B. They help prevent erosion along coasts. C. They increase surface runoff and flooding. D. They filter and process pollutants out of the environment. Please select the best answer from the choices provided A B C D.
Answer:
C
Explanation:
The statement (C) is correct. Mangrove forests increase surface runoff and flooding.
What are the features of the mangrove forests?Mangrove forests, also called mangrove swamps, mangrove thickets or mangals, are productive wetlands that occur in coastal intertidal zones. Mangrove forests grow mainly at tropical and subtropical latitudes because mangrove trees cannot withstand freezing temperatures.
Moreover, the Sundarbans of India and Bangladesh is the only largest mangrove forest in the world colonized by the Royal Bengal Tigers. Mangroves are dense and floristically diverse along the east coast of India and the Andaman and Nicobar Islands.
Hence, it also functions as a site for fertilization for a variety of aquatic fauna resulting in rich biodiversity. Special characteristics of mangrove forests include adaptation to low levels of oxygen, uptaking nutrients from the atmosphere, limiting salt intake, increasing survival of offspring and limiting water loss.
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HELP! In this assignment, you are asked to write a short paragraph, on your own
piece of paper, explaining the difference between things that have matter
and things that do not have matter.
Your paragraph should include discussion of three things that have matter
and why, and three things that do not have matter and why. Your paragraph
also needs to have a topic sentence, supporting details, and a concluding
sentence.
Answer:
things that have matter are living things and with matter are nonliving things
PLEASE CAN SOMEONE HELP? ITS DUE TODAY!!
The abiotic factors will define which organisms are able or not to live in a specified place. The living organisms will constitute the biotic factors, which define if and how can an organism live in a specified environment. So, the abiotic factors are controlling the biotic factors of an environment. Factors like snow, and rain can determine if the animal belongs there.
12. What are the four major parts of a flower?
Answer: The 4 major parts of a flower are petals, sepals, stamens, and pistil.
Hope this helps!
The table shows the survival rate of two types of beetles in the same environment over a
period of three years.
Survival Rates
Year
1
2
3
Green Brown
Beetle (%) Beetle (%)
78
31
83
29
77
28
Which statement about the beetles in this environment is best supported by the data?
A Green beetles are more fit for the environment than brown beetles are.
B Brown beetles undergo a greater number of unfavorable mutations than green beetles do.
C Green beetles have a greater gene frequency among their population than brown beetles
have.
D Brown beetles have a shorter life cycle than green beetles have.
The survival rate is a measure of the fitness of each species. Option A is correct. Green beetles are more fit for the environment than brown beetles are.
What is fitness?
Fitness or Aptitude can be defined as the contribution of each genotype to the next generation.
Fitness is reflected by the phenotype that results in the survival, fertility, and capability of having a mate.
It is a way of measuring the individual ability to leave fertile offspring.
Aptitude must be significant to the natural selection act in its favor.
In the exposed example we can see the survival rate of two species.
The survival rate is telling us about the fitness of each species.
The green beetle increases its survival rate (fitness) each yearThe brown beetle decreases its survival rate each yearThese results lead us to believe that the Green beetles are more fit for the environment than brown beetles are. Option A is correct.
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How is the number of animals remained same according to Darwin's theory?
Darwin believed that the desires of animals have nothing to do with how they evolve, and that changes in an organism during its life do not affect the evolution of the species.
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Define binomial system
Answer:
• a system of nomenclature in which each species of animal or plant receives a name of two terms of which the first identifies the genus to which it belongs and the second the species itself.
• It is called the binomial system because each plant or animal is known by two names. The first, defining the group within which it has natural affinities, is its genus. The second, including only those creatures with which it can interbreed, is its species.
Explanation:
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Explain how the size of the wolf population affected the size of the deer population and how the size of the deer population affected the wolf population
Which scenario is an example of a scientific way of thinking?
Answer:
beginner at this what he proves to be true
Both animals and plants carry out cellular respiration. Cells in both animals and plants contain organelles called mitochondria, where cellular respiration happens. Cellular respiration uses glucose and oxygen to produce a chemical energy source in the form of ATP (adenosine triphosphate) molecules along with water and carbon dioxide. ATP is used to sustain the processes needed for life. You may remember that photosynthesis uses water and carbon dioxide in the presence of chlorophyll and sunlight to produce glucose and oxygen in plants. Plants and animals then use the glucose as food, along with oxygen, to transform energy in the process of cellular respiration.
Using only the reactants you have already constructed, create the products of cellular respiration. Use your student reference sheet to refer to the structures of the two products.
Answer:
This sounds like you need interactive materials to complete?
Explanation:
The bottom says this: Using only the reactants you have already constructed, create the products of cellular respiration. Use your student reference sheet to refer to the structures of the two products.
Why are insertions and deletions called frameshift mutations?.
Answer:
if a mutation, for example, an insertion or a deletion of the nucleotide, occurs, this could result in the alteration of the reading frame. It completely changes the amino acid sequence. Such mutations are known as frameshift mutation (also called reading frame mutation, reading frame shift, or framing error).
Explanation:
Answer:
It completely changes the amino acid sequence.
Explanation:
Claim
What makes diamonds so special?
Diamonds makes so special for being the hardest substance known to man, diamonds also have unrivalled thermal conductivity (100x better than copper) and inertness, which makes poor quality 'boart' diamonds ideal for a whole host of next generation technology uses today.
I hope this helps :)
Answer:
In addition to being the hardest substance known to man, diamonds also have unrivalled thermal conductivity (100x better than copper) and inertness, which makes poor quality 'boart' diamonds ideal for a whole host of next generation technology uses today.
Explanation:
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