The zika virus was first identified in Uganda in 1947. The virus is transmitted from person to person by a bite from a mosquito. It is commonly carried by the Aedes mosquito which is prevalent throughout Central Africa. The virus has more recently spread to the Americas (South, Central, and now North) and is expected to spread to Europe. There is a concern that the virus may reach epidemic proportions. Zika virus is related to yellow and dengue fever. Common symptoms are low grade fever and a distinctive skin rash and other symptoms include vomiting, headache, and muscle and/or joint pain. Pregnant women should avoid traveling to areas known to have zika virus present because the virus is known to cause microcephaly and developmental difficulties related to the central nervous system. Based on the paragraph above, class discussions, and other VALID (be careful with your selection of e-materials! CDC – Center for Disease Control is a good place to start) sources of information please answer the following questions.
1. State a reason why the virus has spread to the Americas and likely to spread to Europe.
2. Define the term microcephaly.
3. What bones of the fetal skull would be affected by zika? Specifically, what area of the CNS is not fully developed in microcephalic individuals.
Answer:
1. It is a highly contagious disease transmitted from person to person and thereby it is expected that infected persons carried the virus to America
2. Microcephaly is a serious birth defect where a baby’s head is much smaller than expected.
3. Occipital bone. CNS malformations: ventriculomegaly, parenchymal and periventricular calcifications and cortical migration anomalies
Explanation:
The Zika virus (Flaviviridae) causes a contagious disease and it is transmitted by Aedes mosquitoes, which are also the main vectors of the dengue virus. Microcephaly is a condition where the baby’s brain has not developed properly during pregnancy, and it has been shown that this birth defect is associated with the Zika virus. During 2015 in Brazil, the incidence of infants with microcephaly born from mothers that contracted this disease during pregnancy was higher, thereby suggesting an association between both conditions. Baby health problems associated with Zika infection include microcephaly (skull partially collapsed), joints with limited motion, etc.
what role does energy play in changing particle motion?
Answer:
A rise in temperature increases the kinetic energy and speed of particles; it does not weaken the forces between them. The particles in solids vibrate about fixed positions; even at very low temperatures. Individual particles in liquids and gases have no fixed positions and move chaotically.
Explanation:
Which climate zone is hot and receives a lot of precipitation throughout the year?
Answer: Tropical
Explanation:
true or false all cells living or dead can produce new living cells
Answer:
TRUE!
Scientist use dead cell embryos to produce living cells
All cells living or dead cannot produce new living cells. Only the living cells can produce new cells. Therefore, the given statement is false.
What is Cell division?Cell division is the process by which a parent cell divides into two new daughter cells. Cell division usually occurs as a part of a larger cell cycle in which the living cell grows and replicates its chromosome before undergoing division.
Cell division occurs in living cells through mitosis and meiosis. The cell division occurs through karyokinesis and cytokinesis. Cell division is a part of the cell cycle. Cell cycle is divided into different phases such as G1 phase, S phase, G2 phase, and M phase.
Learn more about Cells here:
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An aquifer must contain a permeable layer of rock, sand, or soil. Which is true about a permeable rock layer?
soo! a sloping layer of permeable rock sandwiched between two layers of impermeable rock and exposed at the surface. The permeable rock is called the aquifer, and the top layer of impermeable rock is called the CAPROCK. Well through which water flows freely without being pumped.
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(nutrient Cycles)
1. described what "carbon-based life"
means:
2. what causes carbon to return to the atmosphere in a very short time?
3. if one or more nutrients are missing in soil what could happen to the plants?
4. in salt water, blank causes algal blooms whereas in freshwater blank algal blooms.
please help thermal energy transfer Click the links to open the resources below. These resources will help you complete the assignment. Once you have created your file(s) and are ready to upload your assignment, click the Add Files button below and select each file from your desktop or network folder. Upload each file separately. Your work will not be submitted to your teacher until you click Submit.
Answer:
these are instructions
A black bear in Washington may spend up to five months in hibernation, while a black bear in Florida may spend only four weeks. Which of the following explains why there is such a big difference in their hibernation periods?
A.Florida does not have a cold winter season, and food is available all year long.
B.The bear in Florida must feed more often than the bear in Washington.
C.There are more places to hibernate in Washington than in Florida.
D.It rains much more in Florida, and the bear cannot stay asleep.
PLZ HELP FAST.
Answer:
A
Explanation:
Bears hibernate in the cold, hibernating in the heat would be uncomfortable for the Floridian bear
Meiosis produces which type of cells?
O Haploid somatic cells
Diploid somatic cells
Haploid gametes
Diploid gametes
Answer:
Explanation:
Haploid somatic cells
Answer:
Haploid because during meiosis one cell divides twice to for four daughter cells.
Explanation:
What is the difference between active transport across a cell membrane and diffusion across a cell membrane?
Identify the structure labeled B
A. Nucleotide
B. Base
C. Phosphate
D. Sugar
Based on what you have learned in this activity, will you share the link to that article on
brainpower? Why or why not? What should you tell your friend who originally shared the link
about the article? The next time that you run across a link on social media, what steps will
you take to evaluate it before clicking "share"?
I
Submit
Answer:
b
Explanation:
yes
Match the following terms describing the physical/mecahnical events with the correct phases of the cardiac cycle. Each phase may be used more than once.Question Selected MatchAll 4 cardiac valves are closed and all 4 chambers are relaxed during this phase.The maximum amount of blood is in the ventricles at the end of this phase.The pressure in the ventricles is higher than in the atria, but lower than in the arteries, during this phase.The semilunar valves are open and the AV valves are closed during this phase.The atria contract at the end of this phase.The pressure in the ventricles is higher than the pressure in both the atria and the arteries during this phase.Systole begins with this phase.All Answer ChoicesA.ventricular ejectionB.ventricular fillingC.isovolumetric relaxationD.isovolumetric contraction
Answer:
1. Isovolumetric relaxation.
2. Ventricular filling.
3. Isovolumetric contraction.
4. Ventricular ejection.
5. Ventricular filling.
6. Ventricular ejection.
7. Isovolumetric contraction.
Explanation:
In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.
Generally, the cardiac cycle occurs in two (2) stages;
Diastole: in this stage, the ventricles is relaxed and would be filled with blood. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.The following terms describe the physical or mecahnical events with the correct phases of the cardiac cycle in mammals (human beings).
1. Isovolumetric relaxation: All 4 cardiac valves are closed and all 4 chambers are relaxed during this phase.
2. Ventricular filling: The maximum amount of blood is in the ventricles at the end of this phase.
3. Isovolumetric contraction: The pressure in the ventricles is higher than in the atria, but lower than in the arteries, during this phase.
4. Ventricular ejection: The semilunar valves are open and the AV valves are closed during this phase.
5. Ventricular filling: The atria contract at the end of this phase.
6. Ventricular ejection: The pressure in the ventricles is higher than the pressure in both the atria and the arteries during this phase.
7. Isovolumetric contraction: Systole begins with this phase.
in order to release energy through aerobic processes like cellular respiration, cells need to have access to which of the following gasses?
A
Nitrogen
B
Water vapor
C
Carbon Dioxide
D
Oxygen
A key difference between plants and animals is the method by which glucose is obtained to be converted to ATP. By what process do most plants obtain glucose for energy?
A. Photosynthesis
B. Ingestion of organic material
C. Aerobic cellular respiration
D. Anaerobic cellular respiration
Answer:
A. Photosynthesis
Explanation:
Plants absorb co2 and water. Through photosynthesis they create glucose.
Damage to the nerve cells without myelin sneath is perment because regeneration of nerve cells can only happen when
Answer:
Damage to the nerve cells without myelin sneath is permenent because the regeneration of nerve cells can only happen when schwann is present!
Hope this helps please give me brainliest!
God bless :)
Which adaptation helps the arctic fox survive by allowing it to sneak up on its prey undetected?
a bushy tall
b large litter size o ability to eat a wide variety of foods
c white winter coat and brown summer coat
Answer:
c - white winter coat and brown summer coat
Explanation:
The white winter coat blends in with the snow during the winter. Similarly, the coat changes to brown once it is summer so that the white coat doesn't stick out.
What is chemosynthesis?
• How do chemosynthetic organisms get energy? Some examples of organisms include colorless sulfur bacteria, iron bacteria, and giant tube worms (Riftia parchyptila).
Answer:
By making reactions between elements or compounds.
Explanation:
Sulfur bacteria use sulfur as their main source of energy. We can say that they eat sulfur as you eat a burger or a fruit salad. This is the samething for iron bacteria.
Fermentation is an example of which of the following pathways?
Answer:
Anaerobic respiration
Explanation:
penn
If you move farther away from Earth, does it have the same amount of
gravitational force acting on you or does it change?
Answer:
The strength of the force is inversely proportional to the distance squared. The farther away an object is, the weaker the force; the closer, the stronger.
One ounce is equivalent to
10 grams
20 grams
30 grams
40 grams
Answer:
30 grams
Explanation:
1 ounce= 28.3495 grams
If you round it, it will be the closest to 30 grams.
Hope this helps!
a construction company is building a house. After a truck delivers the materials, workers build a wooden frame, cover the exterior with bricks, and spread gravel for the driveway. which resource used in the scenario is nonrenewable?
Answer:
the diesel fuel in the delivery truck
Explanation:
i took the quiz
Answer:
here u goo got a 100%
Explanation:
Identify the cellular structures where photosynthesis occurs.
Answer:
Chloroplasts
Explanation:
Animals store most of their excess energy reserves as ____.
Answer:
Lipids (Fats)
I need help ASAP please
Answer:
D
in both the Eastern and Western Hemisphere
Explanation:
Various cultures designate racial categories differently, and they often base these categories on very different traits. For example, some cultures use nose shape as one of the defining traits for a racial group. Other cultures do not use nose shape in defining racial groups, but use hair color instead. Conduct a survey in person on your campus, via social media accounts online, or among your friends and family. Ask at least 20 people what five traits they think are most important when distinguishing racial groups. Document the responses, and then review the data. Did every person use the same traits? What do differences in racial classification such as these suggest about the universality of race and racial groupings?
Answer:
In the clarification portion below, the definition of the topic is mentioned.
Explanation:
This shows that the distinctions between people living in a culture or geographical region are often based on ethnicity including ethnic groupings. A single population belonging to a specific geographical region has been shown to possess many characteristics, including hair color, body potential for heat resistance, and menu variety. In something like a specific race or ethnic group, these social traits bring them alongside, and the young government associated with a particular race is often obligated to answer the custom practiced by individuals related to such a particular demographic. These are assumed that understand the connection to a specific community follow these rituals only to solve difficulties they have previously faced due to errors perpetrated by certain ancestors.What part of the cell determines the type and order of the amino acids that make up a protein?
Answer:
The gene, or sequence of DNA, ultimately determines the unique sequence of amino acids in each peptide chain. A change in nucleotide sequence of the gene's coding region may lead to a different amino acid being added to the growing polypeptide chain, causing a change in protein structure and therefore function.
Mitosis occurs in all the cells of the organism.
Answer:
Mitosis is the process in cell division by which the nucleus of the cell divides (in a multiple phase), giving rise to two identical daughter cells. Mitosis happens in all eukaryotic cells (plants, animals, and fungi). It is the process of cell renewal and growth in a plant, animal or fungus.
A certain species of lizard comes in three colors: cream, golden, and brown. All lizards are a single solid color (ie, none ever have spots or stripes) You carry out matings between these lizards, and collect the following data:
• Cream and brown lizards can be true-breeding, but golden lizards never breed true.
• Matings between cream and golden lizards always yield cream and golden offspring in a 1:1 ratio.
• Matings between brown and golden lizards always yields brown and golden offspring in a 1:1 ratio.
• Mating golden lizards with other golden lizards always yields brown lizards, golden lizards, and cream lizards in a ratio of 1:2:1, respectively.
Required:
Assign allele symbols to all alleles of the lizard color gene, and indicate which genotypes result in which phenotypes.
Answer:
Cream and brown lizards can be true-breeding, but golden lizards never breed true.
Explanation:
Which products do not have scientific studies supporting their claims to be beneficial when used?
A. Cofactors and coenzymes to support enzyme function
B. Lactase enzymes used in milk sugar digestion
C. Enzyme that aids in the digestion of oligosaccharides
D. Enzymes to promote immune system function