Answer:
False, it is only represented by one class: Crinoidea (sea lilies).
Explanation:
Echinoderms (phylum Echinodermata) are marine organisms that comprises more than 6,000 species. These animals are deuterostomes that are differentiated to have an ambulacral vascular system and a pentameric symmetry. Echinoderms are divided in the following classes: 1- Ophiuroidea (snake stars), 2-Asteroidea (sea stars), 3-Crinoidea (sea lilies), 4-Holothuroidea (sea cucumbers) and 5-Echinoidea (sea urchins), which can be easily distinguished by anatomical and ecological characteristics.
What is the fitness of an organism?
Answer:the fitness of an organism is the ability to survive and reproduce
Explanation:
What is a stem cell?
Explanation:
A stem cell is a cell with the unique ability to develop into specialised cell types in the body. In the future they may be used to replace cells and tissues that have been damaged or lost due to disease.
based on the scientists results, which of the following is true?
During summer in the Northern Hemisphere,
A.
the Sun rises earlier and sets later than during other seasons.
B.
the Sun appears lower in the sky than during other seasons.
C.
there are fewer hours of visible sunlight each day than during other seasons.
D.
the Sun rises in the Southeast and sets in the Southwest.
Answer:
A
Explanation: In the summertime in the northern hemisphere, the Earth is farther from the Sun because of the ellipse in its orbit, but the angle of the Earth's tilt points the hemisphere towards the Sun, making the days longer. The Sun's angle is also higher during the summer months than the winter months.
Answer:
A
Explanation:
Study Island
Land subsidence is caused by
O groundwater overpumping
O runoff
O gophers
O infiltration
Answer:
groundwater overpumping
Explanation:
What are the steps for hypothesis
Answer:
Step 1: State the Null Hypothesis.
Step 2: State the Alternative Hypothesis.
Step 3: Set.
Step 4: Collect Data.
Step 5: Calculate a test statistic.
Step 6: Construct Acceptance / Rejection regions.
Step 7: Based on steps 5 and 6, draw a conclusion about.
Explanation:
The data show that both paper grocery bags and plastic grocery bags cause harm to the environment.
Answer:
Can you explain more
Explanation:
Which term describes a pure substance that is made up of only one type of atom?
matter
rock
compound
element
Answer:
Element
Explanation:
Answer:
Element
Explanation:
I took the test
If water were a nonpolar molecule, how would its properties be different?
Answer:
Water would not be able to climb up inside plants.
Explanation:
Answer: water would not stick together as well
Explanation:
WHAT IS (ARE) THE END RESULTS OF MITOSIS?*
Answer:
Explanation: Mitosis and meiosis result daughter cells for growth, development and reproduction in the living world. Mitosis results similar daughter cells generally for growth and development. ... The resultant daughter haploid cells unite during the fertilization process and retains the diploid number of chromosomes
Explanation:
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Which types if the following sets of phenotypes describes James P. Sullivan?
A. Has two horns, two legs, and blue &purple fur
B. Has no legs, yellow eyes, and green fur
C. Has no fur, eyes on stalks, and spikes on back
D. Has clawed toes, three eyes, and blue &purple fur
Use the drop-down menus to complete the sentences.
Horsetail has been used to____
Ferns are used around homes and businesses for____
Club moss is sold during the holidays as a____
Use the drop-down menus to complete the sentences.
Horsetail has been used to____
Ferns are used around homes and businesses for____
Club moss is sold during the holidays as a____
The answers are:
Treat urinary tract infections, Landscaping, & decoration.The correct answers are mentioned as used to treat kidney stones and UTI, Landscaping, decoration respectively.
What are vascular plants?Vascular plants are a group of plants that have a specialized system for transporting water, nutrients, and sugars from the roots to the leaves and other parts of the plant. This system, called the “vascular system,”
It consists of tubes called xylem and phloem that are responsible for moving water and nutrients, respectively. There are two main groups of vascular plants: ferns and seed plants.
Seed plants include conifers, such as pine trees, and flowering plants, such as roses and daisies, club moss and horsetail used for various purposes as mentioned above.
Learn more about vascular plants, here:
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Is the role of the liver
Answer:
The main role is to filter blood coming from the digestive tract before it passes through the rest of the body. The liver can also detoxify or remove toxic chemicals like drugs and metabolize them. The liver then creates bile that ends up back in the intestines.
"After scanning the green labeled areas and the red labeled areas, when we combine the two images, the spots that show up as yellow correspond to "
Answer:
... areas labeled both red and green.
Explanation:
The spots that show up as yellow correspond to areas labeled both red and green.
__
The effect of combining images will depend on the method used to create the combination. There are many possibilities when combining color images.
When mixing red and green light, yellow light is produced. When mixing red and green pigment, brown pigment is produced. When mixing digital representations of red and green, the effect depends on the individual representations, the method of mixing, and the interpretation of the mixed result.
__
Given the way the question is worded, we assume that yellow is produced by a combination of red and green appearing in the same area of the images. That is, ...
The spots that show up as yellow correspond to areas labeled both red and green.
All BUT ONE is a reason why environmentalists question biofuels as sustainable energy resources.
A) The production of certain biofuels consumes more water than any type of fuel energy.
B) Large-scale biofuel production would divert land from producing food needed to feed the world.
C) Reduction in greenhouse gas emissions drastically reduces the carbon footprint of a combustible fuel.
D) Biofuel production can result in habitat loss and increased invasive species, especially if crop production replaces native forest.
Answer:
C.
Explanation:
The question states it is looking for a reason that supports biofuels instead of questioning them and all but C. explain that biofuels may not be a good energy source, so the answer is C
The CRISPR/Cas9 system can cleave genomic DNA at sequences other than the desired target, a phenomenon referred to as off-target cleavage. To avoid off-target cleavage, sites targeted for mutation should appear only once in the genome. What is the minimum length of the part of an sgRNA molecule that binds DNA whose base pair sequence would be expected to be unique within the fruit fly genome
Answer:
correct answer: 14
Explanation:
the question is incomplete, so a graph with the complete questionnaire is attached and the requested question is answered
We will start from the exercise requesting the minimum length that a sequence forms with more than 1.4x10ˆ8 permutations
for this we deduce that two base pairs can have:
4 * 4 = 16 permutations
we deduce that 3 base pairs can have:
4 * 4 * 4 = 64 permutations
Thus we multiply successively until we reach that 14 base pairs can obtain: 2.68x10ˆ8 permutations that are random
Thus, the 14bp sequence will be found only once in the genome of the fruit fly.
Abigail just completed a report on plastics, which are manufactured using petroleum. She concluded that the price of plastic will
likely rise significantly in the years to come as petroleum reserves are depleted. She recommends that manufacturers begin making
less plastic from petroleum reserves to prevent extreme price increases in the future.
Abigail's younger brother Henry just completed a report on waste management. Henry concluded that plastic products are a major
component of garbage that ends up in landfills. He recommends that humans reduce the amount of plastic they put in landfills.
Which of the following would help implement both Abigail's and Henry's recommendations?
A. Recycle more plastic products.
B.
Use alternatives to plastic products, such as canvas grocery bags.
C.
Reuse more plastic products,
D.
all of these
Answer:
all of theseExplanation:
study island
Answer: All of these
Explanation:
Biologists notice that a population of ferrets introduced into a reserve begins to show exponential growth. The figures represent the population of the ferrets for the first four years after their introduction. Which set of figures represents the exponential growth of the ferrets? A. 50, 88, 145, 227 B. 50, 92, 90, 95 C. 50, 32, 17, 9 D. 50, 95, 59, 97
Answer:
A. 50, 88, 145, 227
Explanation:
The correct option would be option A.
When something grows exponentially, it means the growth increased at a high rate. More specifically, each rate of increase results in more or less doubling of the preceding rate. For example, if the current value of growth rate is 2 for a substance that is growing exponentially, the next growth rates will be 4, 8, 16, etc.
In this particular illustration, the only option that best fit into an exponential system is option A in which the growth rate more or less doubles each time from 50 to 88, from 88 to 145, and then from 145 to 227.
Answer:
A
Explanation:
I just got it right.
3. How does the cell use both DNA and RNA to direct protein synthesis?
Answer:
proteins are made in the cell cytoplasm on tiny structures called ribosomes,to make proteins ribosomes use a code in the DNA
DNA is found in the cells nucleus and cannot move ,so the cell needs to get the code from the DNA to the ribosome this is done using a molecule called RNA (mRAN) - which is made by copying the code from DNA , the RNA acts as a messenger between the DNA and the ribosome - it carries the code between the two
Explanation:
Which phrase best describes the rock's texture
Answer:
Foliated
Explanation:
15. Knowing that the genetic code is almost universal, a scientist uses molecular biological methods to insert the human B-globin gene into bacterial cells, hoping the cells will express it and synthesize functional B-globin protein. Instead, the protein produced is non-functional and is found to contain many fewer amino acids than does B-globin made by a eukaryotic cell. Explain why.
Answer:
The genetic information of living organisms is sequenced in DNA, which allows inheritable factors to be transmitted with each replication process. Proteins play a very important role by intervening in their metabolism during the translation and transcription of information. .
eukaryotic and prokaryotic organisms have different evolutionary sequelae that are reflected in the mechanisms they use for DNA translation, such as in the initial stages, lengthening and termination of sequencing, these differences are imparted by the order of the genes, the ribosome and its structural form and the promoter sequences.
In this way we can conclude that although the eukaryotic genes enter into a bacterium, the type of information that they take may arrive incomplete and this may generate subsequent defects for their operation, but there may be processes that guarantee a better transfer of information with the use of genetic engineering and enzyme management to introduce different bacterial genetic expressions with eukaryotic genes.
Eukaryotic cells like humans and prokaryotic cells like bacteria vary in central dogma methods.
The generative data of an organism is stored in the sequenced DNA that gets transferred during the process of replication.
The DNA transcription and translation process in prokaryotes and eukaryotes differ like the steps concerned in the beginning and the termination of the arrays are defined by various sets of genes in both types of organisms.
The promoter, ribosomes and the structural genes make both the organism distinct from each other.
So, when the eukaryotic gene intrudes bacteria may lack some data that can get misinterpreted and the resulted proteins or amino acids will differ.
To learn more about prokaryotic and eukaryotic gene expression follow the link:
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A California biotechnology firm submitted a tomato that will not rot for weeks to the U.S. Food and Drug Administration. It designed such a fruit by changing the genetic structure of the tomato. What effect will this technological change have on: The price of tomatoes? Farmers who grow tomatoes? The geographic areas where tomatoes are grown? Where tomatoes are generally placed on salad bars in winter?
Answer:
1.There is a high probability that the price of tomatoes will decrease, which allows biotechnology to obtain a better product than the normal tomato, which will result in a reduction in the price of the normal tomato, which will not be able to compete with the characteristics of the new tomato.
2. Regarding access to biotechnology, it is assumed that its high cost will make it inaccessible for a group of farmers who do not have the resources and are at a disadvantage with their crops, however when the prices of biotechnology is less, the production in general could be acquired by all the farmers and their conditions would improve
3. By using less geographic area, it will become an advantage of the new technology, increasing production by area
4. By lowering prices you can increase tomato consumption in salad bars, and if your price is lower in winter there will also be an increase in consumption, salad bars by using more tomatoes can decrease the price and generate more profit
Use the following diagram to answer questions 13. The gas released in this investigation is...
A. Carbon Dioxide
B. Hydrogen
C. Nitrogen
D. Oxygen
Explain what is happening to air mass from the sea as it moves up the side of the mountain and down the other side.
Answer:
The orographic effect creates cooler air moving up the windward side of mountains and warmer air moving down the leeward side. Often, as the leeward air plunges down the slope, it warms quite dramatically and rapidly. Such rapid warming and drying of air can produce very high winds known as Chinook or Foehn winds.
Explanation:
Sorry if i got it wrong
Which is an application of DNA technology in medicine?
mapping human genes for manipulation
determining specific traits that a baby will have before its conception
producing disease resistant humans
determining hereditary diseases in individuals and familiesWhich is an application of DNA technology in medicine?
Answer:
determining hereditary diseases in individuals and families
Explanation:
DNA technology is used to join together DNA segments. DNA technology includes DNA sequencing and DNA cloning.
DNA technology is important to the pharmaceutical industry. By genetic modifications such as high nutrition value, it helps in improving the food production quality.
DNA technology helps in determining hereditary diseases in individuals and families.
Answer:
D - determining hereditary diseases in individuals and families
Explanation:
The punnet square shows the results when two parent cows are crossed. R represents red hair and represents white hair. Which best describes this inheritance pattern?
Answer:codominance
Explanation: Both genes will be expressed equally without overshadowing the other
Answer:
A
Explanation:
Incomplete dominance because the intermediate from of the trait is chosen
Which are the major functions of the genetic material
Answer: usally genetic material is the "coding" for a organism. It tells the organism how to complete basic needs.
Explanation:
Number of eyes found in earthworm
Answer:
none, worms dont have eyes
Explanation:
Answer:
0
Explanation:
Earthworms have no eyes, but they do have light receptors and can tell when they are in the dark, or in the light.
f(x) = 16x2 + 32x - 9?
Answer:
this is bioldy site
Explanation:
Which part of the brain is made of all four lobes? (Parts A, B, C, and D) *
Answer:
Yes frontal lobe is the correct answer.
