The most primitive surviving vertebrate are those in the Agnatha class.
AgnathaThis refers to a group of fishes that are jawless. They include lampreys and hagfishes.
Fishes in the Agnathan class have no fins nor stomachs.
Hagfishes still exist with over 76 species in different cold waters around the world.
Lampreys live mostly as parasites on other fishes and are found in the Atlantic oceans.
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Which of the following could result in secondary succession?
the formation of a tall sand dune on a previously grassy beach
a vast glacier in motion forming a U-shaped valley in its wake
a volcanic eruption that covers most of what used to be a forest
an introduced species that destroys all the native plants in an area.
The answer is D. An introduced species that destroys all the native plants in an area.
1. The greatest concentration of minerals in Arizona surrounds this city:
O Ajo
Phoenix
Flagstaff
Tucson
Kingman
Answer:
Flagstaff
Explanation:
Got the answer correct
The greatest concentration of minerals in Arizona in found in the city called Flagstaff.
Arizona is one of the most dense and prolific states in the USA for mineral and rock collectors.
It is incredibly diverse in terms of geology.
Minerals like copper, gems, crude perlite, molybdenum, silver, zeolites and more are present here in a very abundant amount.
The best places to collect minerals in Arizona includes area surrounding the cities namely, Flagstaff, Phoenix, Tucson, Clifton, Morristown and Kingsman. But the area with highest concentration those minerals is the near Flagstaff.
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Elephantiasis is caused by _____.
Cnidarians: jellyfish
Platyhelminthes: flat worms
Nemotoda: round worms
Mollusca: mollusks
Annelida: segmented worms
Answer:
Elephantiasis is caused by nematodes (roundworms).
What is elephantiasis?
A chronic filarial disease resulting in lymphatic obstruction, characterized by marked enlargement of the parts affected, especially the legs and scrotum, transmitted by mosquitos.
Elephantiasis is caused by nematodes (round worms). Round worms are any nematode, especially Ascaris lumbricoides, that infests the intestine of humans and other mammals.
Some prevention to take against elephantiasis:
Mosquito nets, insect repellentVoodoo healing techniquesElevate and exercise affected body partSkin treatment
Wash area twice dailyAntibacterial creamCDP
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What types of animals are simians?
Simians are a group of higher primates animals such as monkeys, apes, and humans.
What are simians?Simians are a taxonomic category of animals under the primate order.
Primates are divided into Simians and Prosimians. Simians are more advanced than Prosimians.
Humans belong to the primate order and are classified as Simians along with other animals such as monkeys and apes.
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Read pages 19 and 20 carefully and identify the correct solution.
A. Hypertonic
B. Hypotonic
C. Isotonic
22. Solution A has a salt concentration lower than the salt concentration inside the cell.
Solution A is
23. If you drink an excess of water your body could become___
24. The liquid portion of blood.
25. The cells shrink when placed in Solution G. Solution G is
26. Water from Solution H moves in and out of the cell at equal rates. Solution His
Answer:
22.solution A is hypertonic
23.hypotonic
24.hypertonic
25.hypotonic
26.isotonic
What is the function of the epithelium?
The function of the epithelium is the lining of the inner and outer body surfaces and comprising the parenchyma of the glands.
What is the function of the body tissue?The epithelium is defined as a type of body tissue that forms the covering on all internal and external surfaces on the human body, lines body cavities and hollow organs and is the major tissue in glands.
Now, the function of the epithelium is the lining of the inner and outer body surfaces and comprising the parenchyma of the glands.
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reviewing Meiosis:
1. Draw a diagram depicting the process if crossing over.
Answer:
I attached a diagram I found online. This one is a bit more general. If you want me to include the PMAT part of meiosis, then just ask.
Animals help with seed dispersal by (doing what?)
One way animals help with seed dispersal is via digestion,
Anita thinks that she has heterozygous alleles for red hair. if she is correct, which of these diagrams best illustrates anita’s alleles for red hair? 2 chromosomes are labeled upper r and upper r. 2 chromosomes are labeled upper r and r. one chromosome is labeled upper r and another is unlabeled. 2 chromosomes are labeled r and r.
Answer:
R r One uppercase R and one lowercase r
Explanation:
Heterozygous means having two different alleles. Since R is the dominant it means she has red hair and is still heterozygous.
Answer:
2 chromosomes are labeled R and r
Heterozygous means different, so you need two different traits.
Which methods are commonly used by sysadmins to organize issues? check all that apply
The methods which are most commonly used by the sysadmins to organize issues are;
Random machine checks.Service monitoring alerts.Which methods are commonly used by sysadmins to organize issues?In a bid to further enhance early detection of issues, it has become standard practice to carry out random machine checks at frequent intervals and enable service monitoring alerts. The combination of the aforementioned techniques helps sysadmins detect faults early before they get out of hand.
Remarks;
Random machine checks
Daily checks on each machine
Service monitoring alerts
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Two different bacterial samples, a and b, were inoculated onto simmons citrate agar. What conclusions can you make?
Bacteria sample A utilizes citrate while sample B does not.
What is the result of a simmons citrate agar?Simmons citrate agar is a nutrient agar which contains the compound sodium citrate as a carbon source for microorganisms.
It is used to differentiate bacteria based on their use of citrate as a sole source of carbon.
A positive result for for citrate utilization will change the agar from green to blue while a negative result will remain green.
Therefore, since bacterial sample A produced a blue color while sample B agar remained green, A utilizes citrate while B does not.
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The oldest oceanic crust is
a. found at the mid-ocean ridges.
b. beneath the least amount of sediment.
c. older than the oldest continental crust.
d. less than 180 million years old.
The oldest oceanic crust is found at the mid-ocean ridges. Thus, option "A" is correct.
How old is the youngest oceanic crust?The ocean crust is about younger than 200 million years (for example, smaller than 5% of the age of the earth).
The crust is most naive (still being created by volcanic eruptions) along the axis of the mid-ocean ridges and increases in age down the sides of the mid-ocean rises and out onto the more serious basin floors.
Thus, option "A" is correct.
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How is the law of conservation of mass applied to ecology?
Answer:
The laws of conservation of mass applies to ecology because the transfer of nutrients from organisms to the ground results in excess energy not disappearing
Answer: The law of conservation of mass states that the total amount of mass remains constant in a system. In ecology, this means that when an organism is eaten, its mass is conserved. Some of the organism’s mass is used to make new proteins, and some of it is passed as waste in the form of urine or feces. The rest is converted directly into energy. This energy helps the consumer to move and grow, and it helps it to build and repair new tissue.
Explanation: The written response for you guys
Specialized cell types organized in a way that provides a specific function form.
Answer:
Tissue
Explanation:
A tissue is a collection of cells which are similar in structure and perform similar functions.
In this level a group of specialised cells stay together especially in higher plants.
Eg mesophyll layer in leaves
epidermal tissue, xylem tissue etc
Hope it helps
Organisms that are distributed
evenly across the environment
have a
dispersal
pattern.
A. uniform
B. clumped
C. random
what is the relationship amount chromosomes, genes, and DNA
Answer:
life
Explanation:
Rocks and Minerals as Resources Lab Activity
Reflection Questions:
1. Describe the ways mining in the real world can affect society, ecosystems, and the environment of a specific region.
2. Using your answers to the question above, list the criteria you believe should be addressed by land reclamation. Prioritize your criteria by order of importance. Explain the order you selected for your criteria.
3. Complete reclamation of mined land is the solution you practiced in this cookie mining lab. What reasoning supports this solution as one that will provide the largest benefits and least costs to society and the environment?
4. Legislation requiring the reclamation of the land makes mining more expensive. How important is this constraint to achieving complete reclamation of mined land?
5. Were the minerals evenly distributed throughout the cookie mines? In the real world, how important is this constraint (distribution of mineral ore) to achieving complete reclamation of mined land?
6. Were you able to restore the land exactly as it was prior to mining? In your experience, would reclamation of mined land be able to restore and stabilize the natural system of the region?
Refining Design
1. How would you refine your mining techniques in this activity in order to maximize reclamation? Be sure to include proposed changes in costs, safety, and restoration of the area.
2. Predict how your refined mining techniques could affect the social and environmental stability of the region.
Mining is the birth of minerals and other geological accouterments of profitable value from deposits on the Earth.
Mining negatively affects the terrain by converting loss of biodiversity, soil corrosion, and impurity of face water, groundwater, and soil. Mining can also spark the conformation of holes. The leakage of chemicals from mining spots can also have mischievous goods on the health of the population living at or around the mining point.In some countries, hidden-trapping companies are anticipated to cleave to recuperation and environmental canons to ensure that the area hidden-trapped is ultimately converted back into its original state. still, violations of similar rules are relatively common.Loss Of Biodiversity
frequently, the worst goods of mining conditioning are observed after the mining process has desisted. The destruction or drastic revision of the pre-mined geography can have a disastrous impact on the biodiversity of that area. Mining leads to a massive niche loss for a diversity of foliage and fauna ranging from soil microorganisms to large mammals. Aboriginal species are most oppressively affected since indeed the fewest dislocations in their niche can affect extermination or put them at high threat of being wiped out. poisons released through mining can wipe out entire populations of sensitive species.legislation related to mining-
There are different kinds of legislation. The legislation that needs land to be restored after mining tends to make mining to be veritably precious as it does so through the duty of some rules and regulations for the hidden-trapping companies.Through this, it handles the responsibility of their land declination and takes back the land to its original form. This process is known to contribute to the fiscal counteraccusations of a company.Why is it important to take land after mining?
Mining is known to be an act that disturbs the land. A lot of mines now are been known to reclaim the face in the course and after mining is completed, and therefore they return the land for useful purposes.
Reclaimed mine lands are known to be veritably beautiful and useful to wildlife and mortal uses.
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What is the purpose of
statistical analysis?
A. to compare the data to the hypothesis and the
difference between the expected values and the
results
Hope
C. to list the observations of the experiment and
develop a hypothesis
B. to state the best possible outcome of the
experiment
D. to organize the data from the experiment into
a chart
Answer:
A.
Explanation:
This functional group consists of phosphorous bonded to three oxygens and double-bonded to one oxygen. Which functional group is shown in this image? O=P OT O This functional group consists of phosphorous bonded to three oxygens and double - bonded to one oxygen . Which functional group is shown in this image ? O = P OT O
The biomolecule which consists a functional group in which phosphorous bonded to three oxygens and double-bonded to one oxygen is Adenylic acid.
Adenylic acid is a nucleotide.
A nucleotide has three chemically distinct components.
One is a heterocyclic compound, the second is a monosaccharide and the third a phosphoric acid or phosphate unit.
It is a building block for a nucleic acid.
the heterocyclic compounds in nucleic acids are the nitrogenous bases named adenine, guanine, uracil, cytosine, and thymine. Adenine and Guanine are substituted purines while the rest are substituted pyrimidines. The skeletal heterocyclic ring is called as purine and pyrimidine respectively. The sugar found in polynucleotides is either ribose (a monosaccharide pentose) or 2' deoxyribose. A nucleic acid containing deoxyribose is called deoxyribonucleic acid (DNA) while that which contains ribose is called ribonucleic acid (RNA).
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determine the following describe an acid,base, or neutral substance
According to the research, acids and bases are two different types of substances opposite to each other and it is neutral when it is neither acidic nor alkaline.
What is an acid, base or neutral substance?An acid is that chemical substance capable of transferring protons (H+) to another chemical substance.A base is that chemical substance capable of capturing protons (H+) from another chemical substance.A neutral substance is one that when dissolved in water dissociates into its ions.Therefore, we can conclude that according to the research, acids and bases are two different types of substances opposite to each other and it is neutral when it is neither acidic nor alkaline.
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Sam was a 60-year-old man. As a result of picking up a heavy object, he fractured the radius and ulna of his right arm. X-rays indicated that he had severe osteoporosis. His blood calcium levels were above normal and the pathologist found cancer cells that produced a hormone-like substance. That substance was most likely
That substance was most likely parathyroid hormone.
What is a parathyroid hormone?It should be noted that the parathyroid hormone is the hormone that is released to control calcuim levels in the blood.
In this case, this is illustrated as the blood calcium levels were above normal and the pathologist found cancer cells that produced a hormone-like substance.
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Which two species produce fewer offspring, each of which has a high chance of surviving to maturity?
A. Specialist species
B. Generalist species
C. R-selected species
D. K-selected species
Answer:
I think the answer is K.
Explanation:
R Species produce more offspring. Whereas K species produce fewer species due to carrying capacity.
I hope this helps! Correct me if I am wrong.
How do we investigate translocation using the ringing experiment?
Translocation can be investigated by using the ringing experiment, while peeling and removing the bark and phloem of a plant.
What is translocation?Translocation can be defined as a biological process which involves the transfer (movement) of water and other soluble nutrients from one part of a plant to another, especially through the xylem and phloem.
Generally, translocation can be investigated by using the ringing experiment, while peeling and removing the bark and phloem of a plant. Also, if sucrose is present, it would cause a swell and thus indicating translocation.
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An organ is a part of the body composed of two or more tissue types and is designed to perform at least one specific physiological function
Monotheism is
a religion that believes in many gods.
an agnostic position toward the existence of god.
religion that believes in the existence of one god.
a belief that god does not exist.
What environmental impacts does green roofs and double window glazing have?
Answer:
A green roof can increase building efficiency and help reduce electricity costs.
Explanation:
I hope this helps!
Drag the labels to the appropriate locations in this concept map.
Answer:
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Proteins are the polymer of amino acids have many functions, joined by peptide bonds. Each amino acid consist of central carbon. Proteins consist of four group of structure primary structure, secondary structure, R group, tertiary structure and quaternary structure.
What are amino acids?Amino acids are defined as a chemical substances with functional groups from both amino and carboxylic acids. You need 20 of these molecules for your body to function properly because they are the building blocks of protein that are required by all living organisms. 11 of the essential amino acids are produced by your body.
Proteins are defined as a macro- and large-scale biomolecules that contain one or more long chains of residues from the amino acid. Proteins are composed of amino acid chains, which fold into recognizable three-dimensional structures. The bonds found inside protein molecules help to secure the final folded shapes of proteins, which are well-suited for their functions.
Thus, proteins are the polymer of amino acids have many functions, joined by peptide bonds. Each amino acid consist of central carbon. Proteins consist of four group of structure primary structure, secondary structure, R group, tertiary structure and quaternary structure.
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Which is considered a chemical mutation? tanning beds, tobacco, X-rays, or sunlight
Explanation:
chemical mutations are those chemical which change the DNA molecule in such an extent that it function and make different expressions of gene
tobacco is considered as chemical mutation
One way in which photosynthesis would be affected if all the air spaces in the leaf were filled with cells
Carbon dioxide must flow from the air spaces into the leaf for photosynthesis to take place. By diffusing via tiny pores called stomata, it achieves this.
How gaseous exchange is affected if cells are filled in the air spaces.
Cells called stomata are found on the epidermis, or skin, of an above-ground plant. These cells allow water and oxygen to enter the plant while also allowing carbon dioxide to depart. The process through which plants absorb carbon dioxide and exhale oxygen as waste is known as photosynthesis. Intake of carbon dioxide reacts with water in the presence of sunlight to produce glucose and other molecules that are high in energy.If, air spaces are filled with the cells no exchange of gases takes place which does not allow plants to produce energy-rich compound glucose.To learn more about the photosynthesis, you can refer to-
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The plasma membrane is mostly made up of molecules that have Hydro folic head and hydrophobic tails. These molecules are called
The plasma membrane is mostly made up of molecules that have Hydro folic head and hydrophobic tails. These molecules are called phospholipids.
What are phospholipids?Phospholipids are lipid bilayers that are made up of phosphate group, fatty acids and glycerol units.
These phospholipids are found in the plasma membrane. The hydrophilic head is made up of phosphate group while the hydrophobic tail is made up of fatty acids.
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