Tropical rainforests occupy only 2% of the earth’s surface but it contains 50% of plants and animals on Earth. The reasons why plants and animals are abundant in this place are:
1) Climate – Plants and animals get a lot of sunlight responsible for photosynthesis. Energy converted is stored by plants and then later consumed by animals.
2) Canopy structure- offers sources of food and shelter to plants and animals
This is the sample question on e academy:
Tropical rain forests are warm and wet, and the temperature does not vary much. Because of this, a huge variety of plants can live in tropical rain forests. Because there are so many kinds of plants, there are habitats for many different kinds of animals as well.
The three parts of the information-processing model of memory are ________. encoding, storage, and retrieval sensory memory, short-term memory, and long-term memory shallow, medium, and deep processing cs, ucs, ur, and cr
How do sebaceous glands protect the skin normally
Viral infection will provoke cell mediated immunity but will not activate a humoral response.
a. True
b. False
The diagram shows the embryo development of four vertebrates and suggests all of the following EXCEPT A) common ancestry of vertebrates. Eliminate B) there are no similarities in the embryos of all four groups. C) there are very few differences in the early development of any vertebrates. D) common features (gills and segments) in the embryos of all vertebrates.
Answer:
The answer is B
Explanation:
USATestPrep
The myosin head contains binding sites for what two molecules
what layer of the atmosphere is most ozone gas found inside
What accurately describes the process of translation
Suppose the protein specified by bicoid was injected into drosophila embryos, so that a high concentration was present everywhere in the embryo. what might be the result of such an experiment
The right answer is The embryos would show no development of posterior regions.
Bicoïd is a maternal-effect gene deposited in the oocyte by the female during oogenesis. It is expressed at the level of the egg and is involved in the development of the anteroposterior axis in Drosophila and more precisely in the early determination of the development pattern of the anterior region in the embryo. This area develops later to form the head and thoracic part in adults.
It is also the first known morphogen, whose decreasing concentration gradient from the anterior part of the oocyte, specifies different regions in the embryo and allows the formation of its axes of polarity (thus its presence in the whole of the embryo implies that there is no development of the posterior part).
Bicoïd also has a homeobox that encodes a homeodomain. This sequence is involved in the regulation of the expression of several genes that lie along the anteroposterior axis of Drosophila. The protein, therefore, acts either as a transcription factor that stimulates the synthesis of mRNAs from DNA or as an inhibitor of the translation of mRNAs into proteins, depending on the genes involved.
Which process moves water molecules across the membrane of a cell? A) diffusion B) endocytosis C) exocytosis D) osmosis
What is the best way to prepare food in a survival situation sere 100?
The best ways to prepare food in a survival situation are cooking over a campfire, using a portable stove, and consuming raw food when necessary. Water purification and food safety should also be prioritized.
Explanation:Best Ways to Prepare Food in a Survival SituationIn a survival situation, it is important to have access to safe and nutritious food. The best way to prepare food in a survival situation is through methods that are safe, efficient, and require minimal resources. Some effective methods include:
Cooking over a campfire: This method allows you to cook food using wood or other flammable materials. It is important to have a safe cooking area and use a sturdy pot or pan to avoid accidents.Using a portable stove: A portable stove is a compact and lightweight option that can be fueled by gas, alcohol, or solid fuels. This method is quick and convenient.Raw food consumption: In some situations, it may be safer to consume food raw to avoid potential risks associated with cooking methods. This can include fruits, vegetables, and nuts.It's important to remember that water purification is essential in a survival situation to prevent waterborne illnesses. Additionally, prioritize food safety by properly storing and handling perishable items.
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Mrs. olson was diagnosed as having a malignancy characterized by a progressive increase of abnormal leukocytes. this type of cancer is known as
The answer is leukemia. This cancer begins in the bone marrow where leucoblasts are formed. These lymphoblasts do not differentiate into normal leucocytes but proliferate in the blood in their blast-form. Some of the symptoms of Mr. Oslon would be feeling tired frequently, and having poor immunity.
The right answer is Leukemia.
Leukemia is a cancer of the cells of the bone marrow (the cells of the marrow produce the blood cells, hence the term sometimes used for blood cancer), forming part of the hematological malignancies.
Leukemias are distinguishable from lymphomas that develop from a secondary lymphoid organ.
Bone marrow stem cells produce billions of red blood cells, white blood cells and platelets daily. Leukemia is characterized by an abnormal and excessive proliferation of precursors of white blood cells, blocked at a stage of differentiation, which ends up completely invading the bone marrow and then the blood. A medullary insufficiency chart is established, with insufficient production of red blood cells (source of anemia), normal white blood cells, polynuclear cells mainly (neutropenia, source of serious infections) and platelets (thrombocytopenia, source of haemorrhages). provoked or spontaneous).
Describe how excess nitrogen from agriculture can kill fish.
A client is admitted to the hospital after an accident. the nurse uses the glasgow coma scale (gcs) with the client. the client is alert and opens his or her eyes when there is a sound or when someone talks. when questions are asked, the client answers in a confused manner. the client obeys commands, such as being asked to move a leg. what would be the client's total score? record your answer using a whole number.
The Rationale provided by Elsevier for this specific question:
Rationale
The Glasgow Coma Scale (GCS) is used to measure the level of a client’s consciousness and assigns a numerical score for each area of neurological status. The score for opening eyes on sound or speech is a 3. The score assigned for confused verbal responses is a 4. A score of 6 is assigned to the motor response of obeying commands. Therefore, the total score of the client is 13.
Early in mitosis the nucleus nucleolus and nuclear envelope begins to dissolve in preparation for cell division. In which stage of the cell cycle is this process reserved
A plant that has both male and female reproductive structures is able to do what
a. selfreolicate
A pregnant woman in her second trimester arrived at the hospital for a general health checkup. the physician recommended a pelvic examination to the client. which position is most suitable for assessing the client in this condition
When different tissues work together, they form a(n)?
A client newly diagnosed with tuberculosis has a productive cough. which is the most appropriate nursing intervention to teach the client?
The baltic sea has ____________ because of ______________.
Primary succession is most likely caused by what?
Proteins such as interferons and interleukins released by the t cells are called what?
Proteins like interferons and interleukins that are released by T cells are called Cytokines, which are important for cellular communication, particularly in immune responses.
Explanation:The proteins released by the T cells, including interferons and interleukins, are called Cytokines. Cytokines are a broad group of small proteins that are essential for transmitting signals between cells. Interferons are types of cytokines that especially play a crucial role in our immune responses, they alert other cells to the presence of a pathogen (such as a virus) and stimulate them to mount an appropriate defensive response.
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Genetic variation is the raw material of evolution. identify two different sources
The two different sources of variation is mutation and recombination. Mutations are changes in the DNA where a single change can have large effect in evolution when accumulated. It can stimulate rapid evolution of populations by providing new genetic variation on which natural selection, genetic drift, or gene flow can act.
Meanwhile, DNA recombination involves the exchange of genetic material either between multiple chromosomes or between different regions of the same chromosome through sexual reproduction where genetic shuffling occurs. This shuffling is important for evolution because it can introduce new combinations of genes in every generation.
Tina had brisk capillary refill (less than 3 seconds). what does this mean?
Tina's brisk capillary refill time of less than 3 seconds suggests healthy peripheral circulation and good cardiovascular health. It is a quick test to assess the efficiency of blood flow and can indicate potential issues if the time is longer than normal.
Explanation:Tina having a brisk capillary refill of less than 3 seconds indicates that her peripheral circulation is healthy. Capillary refill time is commonly assessed by pressing on a fingernail or the skin until it turns white, and then observing the time it takes for color to return once the pressure is released.
A capillary refill time of less than 3 seconds is considered normal, suggesting efficient blood flow and good cardiovascular health. If the capillary refill time is longer, it may indicate poor circulation, which could be a sign of various health issues including hypovolemia, heart failure, or obstructive shock.
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The sa and av nodes are often supplied by both the ________ and ________ arteries.
A client delivered a 7-lb 6-oz (3345 g) female infant at 11 pm yesterday after a labor of 14 hours. after breakfast the nursery staff brings the baby to the new mother. the mother smiles at the baby, then asks that the nurse take the baby back to the nursery because she has not had a shower yet. one hour later the nurse returns with the infant. again the mother smiles at the baby; then she holds her, kisses her, and feeds her a bottle. immediately after feeding the baby, the mother calls the nursery and asks if the baby be picked up so she can take a nap. which behavior is the new mother demonstrating
List at least one advantage and one disadvantage to asexual reproduction.
Asexual reproduction refers to a kind of reproduction, which only needs one parent. The offsprings produced only exhibit the features and traits from that parent. This is the most general kind of reproduction for single cell species, like bacteria and prokaryotes.
One of the advantages of asexual reproduction is that it provides the tendency to generate huge quantities of offspring. This assists in occupying the niches briskly and inhibits competition and intruders from invading.
With advantages it has some disadvantages as well, one of the major disadvantages of asexual reproduction is that the organisms cannot adapt adequately.
A species has established reactions against some kind of things, and all of these reactions are passed on to the offsprings in case of asexual reproduction, this makes it impossible for these species to amend themselves with the changing conditions.
Which statement is correct, with regard to the catalase enzyme catalyzing the breakdown of hydrogen peroxide into water and oxygen?
A. Water is a substrate in this reaction.
B. Bonds in the Hydrogen peroxide are weakened in catalase's active site, allowing the chemical reaction to occur.
C. Hydrogen peroxide is produced by the catalase enzyme.
D. The breakdown of hydrogen peroxide would still occur naturally but occurs less rapidly with the catalase enzyme.
How is the work of the digestive and circulatory systems related to the respiratory system?
The process of using the information in mrna to synthesize a protein is ______.
Scientists have used computer models to create a series of maps that show how susceptible coastal cities and island countries are to the sea rising at different levels. The maps show that a 1-meter rise would swamp cities all along the U.S. eastern seaboard. A 6-meter sea level rise would submerge a large part of Florida. Thermal expansion has already raised the oceans 10 to 20 centimeters.
The MOST likely cause, directly and indirectly, for such a rise in sea level is
A) global warming.
B) increased sedimentation.
C) change in ocean salinity.
D) decrease in ocean density.