The term "deuterostome" derives from a Greek term that means "mouth second," signifying that the anus is the first organ to mature. Both the superphylum Deuterostomia and the phylum Chordata, in which humans are classified, are made up of the phyla Echinodermata.
The only deuterostomes are echinoderms and chordates; all other invertebrates are protostomes. These species have been well preserved as fossils because of the echinoderms' abundance and calcareous shells. Deuterostome is a Greek term that means "second mouth." It is a superphylum of the kingdom Animalia that unites all creatures with bilateral symmetry and a blastopore, which develops into an anus during embryonic development. They comprise the Chordata and Echinodermata.
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Why chordates and echinoderms are called as deuterostomes?
Which structure of the plants is an opening that exchanges gas and water?
A. chloroplasts
B. stem
C. stomata
Answer: C. stomata
Explanation:
QUESTION:
Which structure of the plants is an opening that exchanges gas and water?
A. chloroplasts
B. stem
C. stomata √√√√√√√√
ANSWER:
The exchange of oxygen and carbon dioxide in the leaf (as well as the loss of water vapor in transpiration) occurs through pores called stomata (singular = stoma). Normally stomata open when the light strikes the leaf in the morning and close during the night.
C. stomata √√√√√√√√
Explanation:
can i get the crown please thanks
i hope it's helpful for you
Which of the following is true about the Earth's natural resources?
A.
Natural resources were once formed by geologic processes inside the Earth, but they are now created only by human-made processes.
B.
The natural resources on Earth can never be used up because humans can always make more resources to replace them.
C.
The same natural resources are available in all areas of the Earth because the geologic processes that formed them occurred the same way in every location.
D.
Natural resources are unevenly distributed on Earth because the geologic processes that formed them occurred in different locations over time.
Answer:
im gonna have to go with D
which of these is a distinguishing characteristic of a savanna
Answer:
answer will be explained
Explanation:
Grasses and trees - The savanna is a rolling grassland with scattered trees and shrubs. Rainy and dry seasons - Savannas have two distinct seasons in regards to precipitation.
TRUE OR FALSE Prokaryotic cells can’t replicate DNA, because they do NOT possess nuclei.
Answer:
false
Explanation:
hope it helps
which are examples of steroids? A. testosterone and trans fats B. cholesterol and phospholipids C. cholesterol and vitamin D D. estrogen and phospholipids
Answer:
A
Explanation:
because it really is suppose. to make u more stronger tougher and high testosterone.
How would the acidic solution affect a clam living in the ocean ? what does a weakened shell mean for the clam
Answer:
Ocean acidification makes it harder for clams and mussels to find the material they need to build and maintain their calcium carbonate shells. A weakend shell often results in but is not limited to the organisms growing slowly or neededign more food to actually survive if the acidity levels were to increase.
Explanation:
A. Identify both the cellular component and the location of the component that is responsible for producing the luciferase protein from mRNAs transcribed in the plasmid-containing T lymphocytes. Explain what dictates to the lymphocytes the correct order in which amino acids should be linked to form the luciferase protein.
B. Identify the independent variable in the experiment described. Identify the plasmid that was used as a negative control for luciferase activity. Justify including the plasmid with the non- CD3γ active promoter in the experiments.
C. Identify the plasmid that must contain the CD3γ core promoter sequence but the fewest or no negative regulatory sequences. Based on the data in Figure 2, describe the most likely cause of the variation in luciferase activity among the cells that contain plasmids pCD3γ-419 , pCD3γ-309 , pCD3γ-239 , and pCD3γ-199. Calculate the approximate percent increase in luciferase activity between cells containing plasmid pCD3γ-59 and cells containing plasmid pCD3γ-149. Round to the nearest whole number
A. The cellular component that is responsible for producing the luciferase protein from mRNAs transcribed in the plasmid-containing T lymphocytes is ribosomes, which are found on the rough endoplasmic reticulum (RER) or free floating in the cytosol.
The correct order in which amino acids should be linked to form the luciferase protein is dictated by the genetic code. B. The independent variable in the experiment described is the type of promoter contained in the plasmid. The plasmid that was used as a negative control for luciferase activity is pGL3-Basic. The plasmid with the non-CD3γ active promoter was included in the experiments as a control to see if it caused any changes in luciferase activity. C.
The plasmid that must contain the CD3γ core promoter sequence but the fewest or no negative regulatory sequences is pCD3γ-59. The most likely cause of the variation in luciferase activity among the cells that contain plasmids pCD3γ-419, pCD3γ-309, pCD3γ-239, and pCD3γ-199 is due to the number of negative regulatory sequences in each plasmid, which affect the level of luciferase expression. The approximate percent increase in luciferase activity between cells containing plasmid pCD3γ-59 and cells containing plasmid pCD3γ-149 is more than 100%. (178-65)/65 x 100 = 173% (rounded to the nearest whole number).
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Which of the following leads to cooler temperatures (in general)? Choose all that apply. a) moving from low altitudes (close to sea level) to higher altitudes (mountains) b) moving from higher latitudes to lower latitudes (closer to the equator) c) moving from high altitudes (mountains) to lower altitudes (close to sea level) d) moving from lower latitudes (closer to the equator) to higher latitudes
Moving from low altitudes (close to sea level) to higher altitudes (mountains) (Option a) and Moving from lower latitudes (closer to the equator) to higher latitudes (Option d) leads to cooler temperatures.
a) Moving from low altitudes (close to sea level) to higher altitudes (mountains):
As you move to higher altitudes, there is a decrease in atmospheric pressure. The air becomes thinner because there is less air mass above. Thinner air has a lower capacity to hold heat, which means it cannot retain heat as well as denser air at lower altitudes. As a result, the temperature tends to decrease with increasing altitude. This phenomenon is known as adiabatic cooling. On mountains and higher altitudes, the air is usually cooler compared to low-lying areas or sea level.
d) Moving from lower latitudes (closer to the equator) to higher latitudes:
When you move from lower latitudes (closer to the equator) to higher latitudes, the angle at which sunlight strikes the Earth's surface changes. At lower latitudes, near the equator, sunlight strikes more directly, resulting in a more concentrated and intense delivery of solar energy. This direct exposure to sunlight leads to warmer temperatures. However, as you move towards higher latitudes, such as towards the poles, the angle at which sunlight hits the Earth becomes more oblique. Sunlight gets spread over a larger surface area, resulting in a lower concentration of solar energy per unit area. This dispersion of solar energy leads to cooler temperatures at higher latitudes.
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Smoking reduces the surfactant layer in the alveoli. This would cause which of the following to occur? (2 points)
A. Depressed macrophage activity
B. Destroyed red blood cells
C. Reduced ability of gases to diffuse through the water layer
D. Reduced ability of gases to enter or exit the alveolar space
Answer:
B
Explanation:
destroyed red Blood cells
genomic libraries are constructed from the fragments generated from a ________ digest.
Genomic libraries are constructed from the fragments generated from a restriction enzyme digest.
What is a genomic library?A genomic library is a collection of cloned fragments that consist of the entire genomic DNA of an organism, which are usually cloned into a collection of bacterial host cells. Clones are made by separating DNA into smaller pieces using a restriction enzyme, followed by insertion into a cloning vector, such as a bacterial artificial chromosome (BAC) or a phage lambda vector.
Because a genomic library contains the entire genome of an organism, it is important in genomics research. By cloning the genomic DNA of an organism into a library, the researcher can sequence the genome and learn more about the genetic makeup of the organism. It can also be used to identify and clone specific genes or regulatory regions.
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Which of the following statements is TRUE about food for animals and
plants
Answer:
umm
Explanation:
Which best describes the storage of the genetic code?
A gene is a segment of DNA, a condensed DNA molecule makes up a chromosome, a chromosome is inside a nucleus, and a nucleus is contained within a cell.
A DNA molecule is a segment of a gene, a gene makes up a chromosome, a chromosome is inside a cell, and a cell is contained within a nucleus.
A gene is a segment of a chromosome, a condensed chromosome makes up a DNA molecule, a DNA molecule is inside a nucleus, and a nucleus is contained within a cell.
A DNA molecule is a segment of a chromosome, a chromosome makes up a gene, a gene is inside a cell, and a cell is contained within a nucleus
Answer:
I think the answer is B ( I'm sorry if this is wrong :( )
Explanation:
Answer:
b
Explanation:
it seems like the most... correct answer
Alpha globulin is a blood borne indicator of systemic acute inflammation. Which of the following compounds would also be a common blood borne indicator?
A. C reactive protein
B. Nitric oxide
C. Selectin
D. Substance P
Alpha globulin is a blood-borne indicator of systemic acute inflammation. The compound that will be a common blood-borne indicator is A. C reactive protein
A class of globular plasma proteins known as alpha globulins are very mobile in alkaline or electrically charged solutions. They have strong inhibitory efficacy and inhibit several blood proteases. The blood-borne marker C reactive protein (CRP) is frequently used to detect acute systemic inflammation. The liver produces CRP, an acute-phase protein, in response to tissue injury, infection, or inflammation.
It can act as a signal for the presence and intensity of systemic inflammation because of how quickly its levels rise during acute inflammation. Therefore, C reactive protein in this case would be a typical blood-borne indication of systemic acute inflammation among the possibilities presented.
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Which of the following is NOT an example of a biotic factor in an ecosystem?
F.
Grasses
G.
Bacteria
H.
Beetle
J. Water
The planets in our solar system revolve around the Sun. One revolution is considered to the one year. Year length varies for each planet. The planets DO have one thing in common though. What do they have in common?
A) Day length is the same for all.
B) Their orbits are elliptical in shape.
C) All the planets are solid, orbiting bodies.
D) The force of gravity is constant throughout the solar system.
Answer:
i think letter D.
Explanation:
correct me if im wrong
If blood had a similar viscosity to dish soap but was effected to be more similar to honey, how would blood flow be affected?
Answer:
It would be impossible for a human to live under these circumstances.
Explanation:
Blood would not carry to the heart on time and they would die. Proper nutrients would not get to your digestive system on time. More awful things would also happen. Humans just aren't made for that type of blood in their bodies.
Have a good day(I was cringing the whole time while writing the answer my tummy hurts)!
true or false: cardiac muscle has sr, but less sr than skeletal muscle.
Answer:
True.
Explanation:
True, cardiac muscle has sr, but less sr than skeletal muscle.
Hope this helps!
Identify 3 similarities between the structure of the DNA of human and Maple Tree.
Answer:
In fact, the actual structure of the DNA molecule and how it codes for proteins is the same from bacteria to yeast to plants and animals. The DNA molecule in plants, humans, and all living things are all the same shape -- like a twisted ladder, or a double helix.
Explanation:
HOPE IT'S HELPS YOUTHANKYOUboth plant and animal cells:
A) produce proteins
B) contain a large vacuole
C) photosynthesize
D) contain green pigments
Answer each with a T for true of a F for false
Which of the following BEST describes the primary goal for meiosis:
Answer:
D) Daughter cells are produced with only half the chromosomes of the parent cell.
Explanation:
The primary goal of meiosis is to create four gametes, which are cells with only half the chromosomes of the parent cell
Glucosuria occurring in conjunction with myocardial infarction may be caused by:
Glucosuria occurring in conjunction with myocardial infarction may be caused by impaired renal function or stress-induced hormonal imbalances.
Glucosuria can be defined as the presence of glucose in the urine, and it is a sign of hyperglycemia. Myocardial infarction (MI) is the medical term for a heart attack. It happens when blood flow to a part of the heart is blocked for a prolonged period of time, causing damage to the heart muscles.There is no clear evidence that myocardial infarction causes glucosuria. However, stress-induced hormonal imbalances and renal insufficiency can contribute to the development of glucosuria.
This is because hormonal imbalances such as elevated levels of cortisol or adrenaline can lead to hyperglycemia. The resulting high blood glucose levels can cause glucose to spill into the urine, resulting in glucosuria.Renal insufficiency can also lead to glucosuria because glucose reabsorption in the kidneys is impaired. When blood glucose levels are high, the kidneys are unable to reabsorb all the glucose, causing it to be excreted in the urine as glucosuria.
Furthermore, people who have both MI and diabetes are more likely to develop glucosuria due to insulin resistance caused by hyperglycemia.
In conclusion, glucosuria occurring in conjunction with myocardial infarction may be caused by impaired renal function or stress-induced hormonal imbalances. However, further research is needed to fully understand the relationship between these two conditions.
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The map shown here suggests that the MOST LIKELY location of current mountain formation is?? A? B? C? D?
Answer:
a
Explanation:
Which statement best explains the significance of meiosis in the process of evolution within a species?
-meiosis produces eggs and sperm‘s that are alike
-equal number of eggs and sperm are produced by meiosis
-meiosis provides for variation in egg in sperm cell produced by an organism
-The egg and sperm cells produced by muses ensure continuation of any particular species by asexual reproduction
No links please.
Answer:
meiosis provides for variation in egg in sperm cell produced by an organism
Explanation:
meiosis is like mitosis for sex cells and it makes 4 individual cells at the end
Describe reasons for the fluctuation of the population.
What is the difference between the original strand of DNA and the mutated
strand?
(HELPP)
Answer:
An original section of dna has the base sequence agcgttaccgt. A mutation in this dna strand results in the base sequence aggcgttaccgt. This change represents a frameshift mutation. It is a genetic mutation caused by indels (insertions or deletions) of a number of nucleotides in a DNA sequence that is not divisible by three.
Explanation:
Answer:
one is a mutant
Explanation:
Examine the structure of the genetic material of the alien sample. Explain the similarities in the structures of the alien genetic information system with those found in eukaryotic life on earth
The structure of the genetic material of the alien sample has not been explicitly mentioned in the question. Therefore, we will assume that the genetic material has a double-stranded DNA structure.
The similarities in the structures of the alien genetic information system with those found in eukaryotic life on earth are that both DNA strands are made up of nucleotides. The nucleotides contain a sugar, a phosphate group, and one of the four nitrogenous bases that is, adenine, guanine, cytosine, or thymine.In both alien and eukaryotic life on earth, the DNA strands have a complementary base pairing. Adenine bonds with thymine and cytosine bonds with guanine. The base pairing helps to maintain the structural stability of the double-stranded DNA helix.
The DNA replication process is also similar in both alien and eukaryotic life on earth. In both cases, the DNA helix unwinds and each strand serves as a template for the synthesis of a new complementary strand. The new strands are then joined together to form two identical DNA molecules.In summary, the genetic material of the alien sample has a double-stranded DNA structure similar to that of eukaryotic life on earth. Both systems share similarities in their nucleotide composition, complementary base pairing, and DNA replication process.
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Which of the following plasmids enables E. coli strain W to catabolize styrene?
a. pISM7
b. PIP27
c. PSTY
d. PUE14
The naturally occurring Escherichia coli genetic element known as PIP27, which contains EcoVIII Restriction-Modification System genes, is mobile among enterobacteria. Hence (b) is the correct option.
DNA replication starts in the ori, allowing a plasmid to replicate itself as necessary for survival inside cells. K-12 derived DH5 is one of the most often used laboratory E. coli strains for maintaining and amplification of tiny plasmid DNA. Typical DNA assembly and cloning processes involve transforming the created plasmid into capable DH5 cells as their last step. A key method for molecular cloning is the purification of E. coli plasmid DNA.
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1.1.1 A young woman stepped on a dirty, rusty nail. The following diagrams
show bacteria isolated from the wound and a range of antibodies that
were already present in her body. The antibodies have a specific shape that
binds with the antigen found on the surface of the bacteria
N
P
bacteria
antibodies
The bacterium most likely to cause a severe infection is ...
A M
B. N
C.O
D. P
Answer:
M
Explanation:
HOPE IT HELPS :)
please help I'm stuck on this
Answer:
Hmm I don't know really I saw a video about this but I don't remember it