Answer:
The answer is A, asteroids.
Explanation:
Many meteoroids are formed from the collision of asteroids, which orbit the sun between the paths of Mars and Jupiter in a region called the asteroid belt. As asteroids smash into each other, they produce crumbly debris which are meteoroids. Other meteoroids are the debris that comets shed as they travel through space.
(d), meteorite. A meteoroid is space, meteor burning up in the atmosphere, meteorite is
what reaches Earth’s surface
Which of the ideal criteria for a successful screening program is satisfied by the following statement: Screening those older than 50 years using fecal occult blood testing every year and flexible sigmoidoscopy every 3-5 years have been shown to be effective strategies for screening for colon cancer?
A. Early detection improves outcome.
B. The disease produces substantial mortality or morbidity.
C. There is a feasible testing strategy.
D. Screening is acceptable in terms of costs, harms, and patient acceptance.
Answer:
A. Early detection improves outcome.
Explanation:
These screening tests are carried out in order to the medical condition of the people who are older than 50 years. These screening tests tells us about the disease in early stages. The disease can be cured if they are diagnosed in early stages so early detection of the disease plays important role in saving the life of the patient from that dangerous disease and the results are in favor of the patient. If these screening tests are not carried out earlier so the disease may cause serious damage which leads to death.
Which characteristic is one of the three main characteristics used to classify igneous rocks?
Answer: Texture
Explanation: the rate at which the rock had cooled when molten magma was cooling gives out a clear comparrison of the rocks which is the texture
Answer:
Explanation:
Texture
Help pls. ive been stuck on this for a long time
Answer
Tundra: lichens and moose
Taiga: cone-bearing evergreens and timberwolves
Deciduous Forests: broad leafed trees and ptarmigans
Grasslands: grasses and hyenas
Rainforests: air plants and parrots
Desert: succulent plants and dingo dogs
hope it helps
Select all the correct answers.
Exotic pets, such as lizards and tarantulas, have increased in popularity. These animals are caught in the wild and sold as pets. What are two possible effects this action can have on biodiversity?
It will lead to greater biodiversity in these animals’ native environments.
Populations of these animals could decrease in the wild.
It could increase competition among predators of these organisms.
It increases the chances that wild organisms will find an unrelated mate.
Answer:
B and C
Explanation:
PLATO
;)
Populations of these animals could decrease in the wild and It could increase competition among predators of these organisms actions can have on biodiversity.
What do you mean by biodiversity?Biodiversity or biological diversity is the variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic, species, and ecosystem level.
Biodiversity is all the different kinds of life you'll find in one area—the variety of animals, plants, fungi, and even microorganisms like bacteria that make up our natural world.
Biodiversity is the natural world around us, and the variety of all of the different kinds of organisms - the plants, animals, insects and microorganisms that live on our planet.
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what faution generator????
Answer:
Fusion power is a proposed form of power generation that would generate electricity by using heat from nuclear fusion reactions. In a fusion process, two lighter atomic nuclei combine to form a heavier nucleus, while releasing energy. Devices designed to harness this energy are known as fusion reactors.
which of the following adaptions allowed plants to transport water and nutrients from the soil to all of the cells within the plant?
A. Vascular system
B. Leaves
C.Cuticle
D. circulatory system
Answer:
c
Explanation:
I took the test
Answer:
D. circulatory system
Explanation:
Circulatory system is the method of transport of plants and animals. It gives the plants nutrients and carbon dioxide in every cell and release waste products from their system.
Determine the correct sequence of events during the creation of recombinant DNA.
I. Plasmid is cut open with enzymes
II. Target gene is cut out with enzymes
III. Plasmid is inserted into the bacterium
IV. Target gene is bonded to the plasmid with Ligase
A. IV, I, II, III
B. II, I, IV, III
C. I, II, III, IV
D. IV, III, I, II
Answer:
I believe the correct answer to your question is A
IV, I, II, III
What is endocrine system? What are its functions? Name the important endocrine glands present in a human body. Draw a labelled diagram to show the positions of these endocrine glands in the human body (male/female)
Answer:
endocrine system produces hormones required to coordinate reactions in the body.
answer the questions above
Answer:
Hey there!
3) Well injection is usually done through the vein because they need the substance to go into the blood.
4) Some people believe that the heart is on the left side because its the left ventricle and atrium responsible and when people hear left they think the heart is on the left.
5) People living in high altitudes don't get as much oxygen so their bodies evolved into carrying ,more RBC so more oxygen is carried into their bodies.
Hope this helps :)
what is scientific advancement? describe characteristics
Scientific or technological advancement is the generation of information or the discovery of knowledge that advances the understanding of scientific relations or technology. This definition encompasses the definition of scientific advancement, advancement of scientific knowledge and technological advancement. The only difference is that scientific advancement and advancement of scientific knowledge relate to science whereas technological advancement relates to technology.
Cystic fibrosis is a genetic disease that results from a malfunctioning chloride transport protein. This causes the accumulation of a thick mucous in the lungs and around the pancreas. Why might an individual with cystic fibrosis have malabsorption and nutrient deficiencies
Answer:
In cystic fibrosis, there is an alteration in the chlorine channels of all cells, so all kinds of body secretions are affected.
Body fluids thicken at the intestinal level, forming a mucus that blocks the ducts that carry digestive enzymes from the pancreas to the intestine.
These enzymes are responsible for generating nutrients or proteins, vitamins and even fats are absorbed.
Explanation:
This intestinal factor results in malnutrition, growth impairment, hypovitaminosis, decay, anemia, capillary fragility, decline and fatigue.
7) The evolution of animal species has been prolific (current estimates of species numbers reach into the tens of million). Much of this diversity is a result of the evolution of novel ways to ___.
Answer:
The options are
A) arrange cells into tissues
B) form an embryo and establish a basic body plan
C) sense, feed, move and choose mates
D) reproduce
E) I don't know
The answer is C) sense, feed, move and choose mates
Evolution occurs after a long period of time and it occurs as a result of organisms adapting to new environmental conditions. Much of this diversity is a result of the evolution of novel ways to sense, feed, move and choose mates and the they are features which are essential in an organisms survival.
An adult with a history of tanning has his genome sequenced. The beginning of a protein-coding region of his DNA reads ATGGGGATATGGCAT. If the protein-coding region of a healthy adult reads ATGGGGATATGAGCAT, identify the site and type of mutation.
Answer:
Explanation:
The protein-coding region of a healthy adult reads ATGGGGATATGAGCAT.
The beginning of a protein-coding region of the tanning individual DNA reads ATGGGGATATGGCAT
The site of mutation is close to the end - GGCA - between the two G's, a base (A) has been deleted.
Thus this type of mutation is termed deletion: a process whereby one or more bases are removed from a nucleotide sequence of DNA.
Describe the importance of photosynthesis in producers
Question 1 of 10
10 Points
You are working to catalogue some of the species in the Amazon rainforest
before they become extinct from logging. You collect 3 organisms that all look
similar to the Coral snake and do a phylogenetic analysis on them before
classifying and naming them. The Coral snakes DNA barcode is
ATTCGCGATAC. Compare it to each sample organism's DNA barcode to
determine how related they are to the Coral Snake, from closest to furthest.
Organism 1: ATTGGCCATAC
Organism 2: ATCCGGGATAG
Organism 3: ATTCGCCATAC
Answer:
The organism closest to the coral snake is organism 3, followed by organism 1 and finally organism 2.
Explanation:
The more similar the DNA composition of the organisms, the closer and more closely related they are. With that we can say that the coral snake is closer to organism 3, since the sequence of nitrogenous bases in its DNA is more similar, in relation to other organisms. After organism 3, it is organism 1 that most resembles a coral snake. Organism 2, however, has a different DNA composition, the organism being less similar and the more distant from the coral snake.
Which of the following is not a Eukaryote? A. Bacteria B. Mushroom C. Human D. Oak tree
Answer:
A. Bacteria
Explanation:
Cells that contain a cytoskeleton, organelles surrounded by cytoplasm, nucleus surrounded by nuclear envelope, etc. are called eukaryotic cells. Animals, plants, and fungi are all made up of eukaryotic cells, but bacteria are not (they are prokaryotes).
hope this helps!
Which of the following statements about energy producing technologies is true? a. Some currently used energy producing technologies have no disadvantages. b. Alternatives to nonrenewable energy sources can be as effective. c. Air pollution is common to all energy producing technologies. d. Alternatives to nonrenewable energy sources are typically more damaging to the environment. Please select the best answer from the choices provided A B C D
Answer:
b. Alternatives to nonrenewable energy sources can be as effective.
Explanation:
Sources of energy can either be renewable or nonrenewable. Nonrenewable sources of energy e.g petroleum, coal etc are those that are used faster than can be replenished. They tend to release pollution into the environment.
On the other hand, renewable sources of energy has been employed in order to reduce the debilitating effect caused by the nonrenewable sources. Renewable sources of energy, which include solar, wind etc are being technologically used to produce energy. They have proven effective in the sense that they generate energy in an eco-friendly manner. This is the reason they are called Green or clean energy.
Renewable sources are found to be effective and eco-friendly alternatives to the nonrenewable sources.
Answer:
b. Alternatives to nonrenewable energy sources can be as effective.
Question 7 of 18
What is the standard deviation of this data set? Use a calculator to help you.
Round your answer to the nearest tenth.
11, 16, 22, 28, 29, 30, 31, 34, 37, 38, 43, 49, 56, 78, 99
O A. 25.9
O B. 23.2
O C. 29.3
O D. 27.5
PREVIOUS
Answer:
23.2
Explanation:
Tachycardia, decreased or absent breath sounds on the affected side, hyperresonance, and sudden chest pain on the affected side are clinical manifestations of:__________
A) Sarcoidosis
B) Pneumothorax
C) Hypersensitivity pneumonitis
D) adult respiratory distress syndrome
Answer: Option B.
Pneumothorax
Explanation:
Pneumothorax occurs when air buildup between the chest wall and the lungs thereby leading to increased pressure in the chest and it inturn decrease the amount of blood that flow back to the heart because the blood find it difficult to force it's way into the chest and the heart. This is cause by injury to the chest, lung danage, rupture air blisters and mechanical ventilation.
The symptoms include decreased or absent breath sounds on the affected side, hyperresonance, and sudden chest pain on the affected side , racing heart, shock.
When a pneumothorax is large, a needle or tube is used to remove excess air.
Which of the following biological macromolecules is correctly paired with one of its functions?
Choose ONE answer:
A. Proteins ----> provide cell structure
B. Carbohydrates ----> store genetic information
C. Nucleic acids ----> digest dead cells
D. Lipids ----> give quick energy to cells
Of the given options, proteins is correctly paired with its function, that is, provide cell structure.
What are proteins and their functions?They are the large and complex molecules, which perform many essential roles in the body. They perform majority of the function in cells and are needed for the structure and function of the cells. Apart from this, they also play an essential role in the regulation of the tissues and organs of the body.
Of the different kinds of proteins found in the body, the structural proteins provide structure and support for the cells. On a bigger scale, they also help the body in movement, for example, actin protein.
Thus, the correct answer is option A.
Find out more information about the proteins and their functions here:
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: What is lymph? What is lymph? thick carbohydrate matrix that supports cells in various tissues of the body the portion of blood that contains red blood cells the layer of lipids that collects under the skin for protection and insulation protein-rich blood plasma that has left capillaries the portion of blood that contains white blood cells and platelets
ANSWER;
protein-rich blood plasma that has left capillaries
Lymph is un reabsorbed interstitial fluid which are trapped in the capillaries called lymph capillaries. it is pale in color(compare to red of the the blood),and continuously flood the body tissues for fluid balance and waste removal.
Macrophages and lymphocytes (WBC) are the principal cellular components,however it also contain proteins,lipids.It is similar to blood plasma,except for higher amounts of lipids but will lesser amount of WBC and platelets.
Its special channels are the lymphatic vessels of the lymphatic system,which are the lymph nodes and vessels.
The functions of Lymph are:
Responsible for the removal of tissues bathing the tissues(Interstitial fluids ) from the tissues.
Transport of fats from the lacteal during absorption.
Transport of WBC across from the L.nodes to the bone.
it also mediates in immune response,through the transport of antigen-presenting cells.
it is similar to blood because it is a circulating fluids,through special vessels,and both linked by network of capillaries.
However, more wbc,rbc,platelets,oxygen are present in blood than the lymph. In addition because it returns proteins,it is said to contain proteins,but in actual sense if lacks protein
How is the earth protected from the sun’s particles? Select one: a. The earth’s magnetosphere protects it b. The sun is 93 million miles away, and the particles do not impact the earth. c. The earth is not protected from solar particles. d. The heliosphere protects the earth.
Answer: A.
Explanation: The Earth has a magnetic sphere that protects it from the sun's particles. Even though the particles take a while to travel to Earth, whenever they are deflected that is what causes the Northern Lights.
A Histoplasmosis (caused by the fungal pathogen Histoplasma capsulatum) is typically seen only in the Ohio and Mississippi river valleys, whereas Aspergillosis (caused by the fungal pathogen Aspergillus fumigatus) is widespread regardless of geographical location. Which of the following statements describes why this disparity with regards to disease distribution occurs?
1. Histoplasma capsulatum is an endemic fungus that prefers sols erwiched with bal guano, whereas Aspergillus furgatus is a ubiquitous soll langus.
2. Individuals are not as routinely vaccinated against Aspergillosis as compared to Histoplasmosis
3. Histoplasma capsulatum is an opportunistic fungal pathogen affecting immunocompromised individuals, whereas Aspergillus fumigatus is a true fungal pathogen affecting both healthy and immunocompromised individuals.
4. The arthropod vector that carries Histoplasma capsulatum is only found in the Ohio and Mississippi valley regions, whereas the arthropod vector that carries Aspergillus fumigatus is found in many geographical locations.
Answer:
3. Histoplasma capsulatum is an opportunistic fungal pathogen that affects immunocompromised individuals, while Aspergillus fumigatus is a true fungal pathogen that affects both healthy and immunocompromised individuals.
Explanation:
Histoplasmosis is an oprtounista mycosis, that is to say that it increases in number in our organism occasionally generating infectious and non-protective pathology like the commensal flora.
Histoplasmosis respects American geographic limits and is because it lives in tropical and freshwater climates.
Histoplasmosis pathology is triggered if the person has a deficit in the immune response and if the risk of living or transiting the endemic area is corrected.
On the other hand, the aspergillus fungus is a fungus that enters the inhalation routes in a sporulated form and developed in the lungs, generating a high fatal risk, since it triggers inflammatory and necrotic symptoms in the lung, regardless of whether the person is immunodeficient or not. ... There were people who were shaved by this fungus and even selected hypersensitivity pictures, that is, the opposite of an immunodeficiency.
The Fungi of the Aspirgillus group do not discriminate against age, immune status, or other factors ... only inhalation of the spore is required to develop the pathological picture.
Fill in the blanks:
1. Light-touch receptor located at the epidermal-dermal border:__________.
2. Light-pressure receptor located in papillary layer of dermis: ____________.
3. Deep pressure receptors:__________.
4. Receptors that respond primarily to pain and temperature:________.
a. Merkel cells.
b. nociceptors.
c. lamellated corpuscle.
d. tactile corpuscle.
Answer:
1. merkel cells
2. tactile corpuscle
3. lamellated (lamellar) corpuscle
4. nociceptors
Explanation:
Merkel cells are epithelial cells found around hair follicles which are capable of sensing gentle touch sensations such as, for example, tactile discrimination and environmental exploration. Tactile corpuscles are a class of nerve ending required for mediating sensitivity to light touch sensations. The lamellar corpuscles are another class of nerve ending capable of sensing deep touch sensations and vibrations. Finally, nociceptors are somatic sensory receptors capable of sensing noxious (damaging) stimuli.
1. Light-touch receptor located at the epidermal-dermal border: Tactile corpuscles (D)
Light-touch sensors called tactile corpuscles, sometimes referred to as Meissner's corpuscles, are situated near the epidermal-dermal boundary. They are located in the papillary layer of the dermis's dermal papillae, which are tiny, finger-like projections.
Particularly dense populations of tactile corpuscles can be seen in skin regions like the lips, palms, and fingertips that are sensitive to gentle touch.
2. Light-pressure receptor located in the papillary layer of the dermis: Merkel cells (A)
3. Deep pressure receptors: Lamellated corpuscle (C)
4. Receptors that respond primarily to pain and temperature: Nociceptors (B)
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Crosses between red and white true-breeding plant types yield offspring that are pink in color. When these pink offspring are crossed with other pink individuals, the resulting progeny show a range of color. This result is consistent with the theory of
Answer:
The correct answer is - particulate inheritance.
Explanation:
The theory of particulate inheritance expresses that discrete "particles" are passed from one generation to another generation offspring. While Mendel utilized the term particles, we presently realize that these particles are really genes.
For instance, codominance in the flower of two distinct colors present in the different alleles of genes expressed or visible together without mixing and can be communicated distinctively in later generations individually.
Thus, the correct answer is - particulate inheritance.
In captivity, tigers and lions have been known to interbreed and produce hybrids, known as ligers. Why does this NOT make them the same species, according to the biological species concept
Answer:
Explanation:
A cross between a tiger and a lion will produce an hybrids. During fertilization it has been observed that both the father and the mother contributes equally to the genetic makeup of the offspring this therefore will make the liger have 50%gene from the tiger and 50% gene from the lion which is different genetic makeup from the parents.
Since the parents are of two different species the offspring will always be of a different species because its makeup is genetically different from the two parents it is a combination of two species forming a new species.
If the parental species are the same i.e two lion or tiger the offspring will be of the same species but a combination of the parental gene.
Which form of natural selection does the graph represent? A graph has trait value on the horizontal axis and proportion of individuals on the vertical axis. The original population increases to a maximum point at the center, and then decreases. The population after selection increases, decreases, increases, and then decreases again. The maximum of the original population is the minimum of the population after selection. directional selection disruptive selection sexual selection stabilizing selection
Answer:
directional selection
Explanation:
Directional selection is the most common type of natural selection and occurs when some individuals with characteristics favorable to the conditions of the environment in which they live, have survival advantages over individuals who do not have this advantage, who end up dying.
Imagine, for example, a graph showing the directional selection in the same species of moths. Moths of the same species have white and brown collations, in summer, brown moths can camouflage themselves on tree trunks, while white moths cannot and are easily captured by their predators, which means that the amount of white moths decrease. In this graph, the population of white moths would be at a minimum, at the same time that the population of brown moths would be at maximum.
However, with the arrival of the reverse, snow begins to cover the trees, allowing white moths to camouflage themselves more easily. The brown moths, then, are very exposed to predators, causing their population to reach the minimum while the population of white moths reaches the maximum.
Answer: Graph A
Explanation:
After reading the paragraph below, answer the question that follows In the North Pacific Ocean, two groups of the same species of killer whales (Orcinus orca) appear to be forming two different species based on what they eat. One group eats fish and the other eats mammals such as seals. Another difference between the two groups is in how they hunt. Whales that hunt fish tend to travel in large pods (groups of whales) and vocalize often. Whales that hunt seals, however, tend to travel in very small groups and vocalize very little. If these hunting differences brought about speciation, the separation would be considered:____________
Answer:
behavioral separation
Explanation:
The separation leading to the speciation of the two groups of killer whales would be considered a behavioral separation.
Behavioral separation or isolation is a form of separation that occurs between two groups of individuals (that use to be of the same group) as a result of preference for a particular behavior or set of behaviors.
The preference for the behavior eventually leads to the two groups becoming separate species, a form of speciation known as sympatric speciation.
Not all of the members of everyday categories have the same. Most fish have gills, fins, and scales. Sharks lack the feature of scales, yet they are still categorized as fish. This is most problematic for the __________ approach to categorization.
Answer:
species to
Explanation:
How can we determine the velocity of a star moving toward or away from Earth? a. By looking at the color of the star. b. By the shift of its spectral lines. c. By the brightness of the star. d. By its change in apparent size.
Answer:
Hello!
Your answer should be B. By the shift of its spectral lines.
Explanation:
It is known that when studying space, to tell if a star is moving TOWARDS EARTH its measurements will move towards the RED side of the Spectrum...
MOVING AWAY will mean its measurements will move towards the BLUE end!
HOPE THIS HELPS!
itsMATT04
{i did a bit of research from revision guides so there may be some similar phrases! :)}