Answers
Answer:
Option B
Explanation:
Both plants and animals can reproduce asexually, therefore option A is incorrect
Organisms that reproduce sexually have the advantage to produce genetically diverse offspring. Hence, option C is incorrect
Heterotrophs can reproduce both sexually and asexually, hence there is not no relation between being heterotroph and reproducing either asexually or sexually. Hence option D is also incorrect
If an organism reproduces asexually, then there is no pressure on it to select its mate. Hence, option B is correct
Related Questions
A client takes isosorbide dinitrate daily. the client states, "i would like to start taking sildenafil for erectile dysfunction." the nurse explains that taking both of these medications concurrently may result in which complication?
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Isosorbide dinitrate- is used to treat or prevent angina.
They both dilate blood vessels, making it easier for blood to flow.
This drugs taken together are not recommended because it may cause blood pressure to fall excessively, which can lead to cardiovascular collapse.
Other side effects are: dizziness, fainting, headache, heart palpitations, and priapism (prolonged and painful erection)
Which of the ones below can be found in the arterioles but not in the capillaries?
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Where do the light-dependent reactions for photosynthesis occur in eukaryotic cells?
Answers
Which of the following factors can lead to desertification in the presence of natural drought?
a.
deforestation
b.
sustainable grazing
c.
underground mining
d.
all of the above
(Not B)
Answers
Trees and another various type of vegetations played really important roles in absorbing water (through their pores/roots)
So, when deforestation happens, we cut down many of these trees and vegetation, which heavily reduced the absorption capability in that area, which eventually cause desertification in the long run.
Explain why living things need both glucose and atp
Answers
What can be predicted for a child who received a dominant allele for "tallness" from one parent and a recessive allele for "shortness?"?
Answers
Is it true that becoming health literate requires understanding technical medical terms?
Answers
Which food chain would cease to exist if all the bushes were destroyed?
A. deer - coyote
B. mice -snake -hawk
C. grasshopper -frog- hawk
D. None of the food chains would be affected.
Answers
Answer:
C. grasshopper - frog - hawk
Explanation:
In the image network of food, chains are in operation. In the given ecosystem, different types of producers are present. The producers are eaten by herbivores or primary consumer. If all the bushes were destroyed, then the food chain consisting of grasshopper -frog- hawk will cease because grasshopper only eats bushes. Other herbivores such as rabbit, deer can eat other producers such as trees, carrot beside bushes. Therefore, food chains consisting of deer-coyote and mice - snake - hawk will survive.
H process is the most efficient way to convert glucose into atp?
Answers
The symptoms of swine pox for pigs include pustules on the abdomen, often with a red circular appearance around the blister area.
a. True
b. False
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A potassium atom may become a potassium ion (K+) by:
A. gaining an outer energy level electron
B. giving up a neutron
C. losing an outer energy level electron
D. interacting with another potassium atom
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The human lens focuses light on the photoreceptor cells by
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The human lens focuses light on the photoreceptor cells by changing shape.
• The eyes of human beings possess a single lens that focuses by modifying its shape. In the eye of a human, the flexible lens and cornea focus light on the photoreceptor cells in the retina.
• When the light enters the eye, it passes via the cornea, which gets bent and aims the light upon the lens.
• The pupil monitors the amount of light, which moves into the eye. The lens then projects the light onto the retina, giving rise to an inverted image. The shape of the lens get change to adjust the focus on both the near and far off objects, this phenomenon is called accommodation.
Thus, the shape of the lens gets change to focus light on the photoreceptor cells.
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The electrochemical gradient in a chloroplast can have a concentration of protons 1000 times greater on one side of a thylakoid membrane than the other.
a. True
b. False
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The electrochemical gradient in the chloroplast is a gradient of electrochemical potential of ions which move across the membrane of the chloroplast during the photosynthesis process. The proton gradient across the thylakoid membrane drives the ATP synthesis during photosynthesis.
Consider a gene with four alleles a1, a2, a3, and a4. in the cross a1a2 × a3a3, how many offspring genotypes are possible?
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_______Parent 1_______
| |____a1___|____a2____
|a3| a1a3 | a2a3
Parent 2|__|_________|__________
|a3| a1a3 | a2a3
| | |
It is possible to form two genotypes. When the there is one homozygous individual, the variety in the combination will depend solely on the variation of the other parent.
A study was conducted to examine the impact of temperature changes on the number of "non-native species" in an area of the mid-Atlantic ocean. The results of the study are shown in the table below.
Temperature (°C) Number of species
Sample 1 15 12
Sample 2 22 10
Sample 3 32 23
Sample 4 27 19
What is the relationship between temperature and non-native species?
There are more non-native species in warmer temperatures.
There is no correlation.
There are fewer non-native species in warmer temperatures.
There are more non-native species in colder temperatures.
Answers
Final answer:
Based on the dataset provided, there is a trend indicating that there are more non-native species in warmer temperatures in the mid-Atlantic ocean region.
Explanation:
The relationship between temperature and non-native species can be interpreted from the given dataset. When analyzing the number of non-native species at various temperatures, it can be seen that there tends to be more non-native species in warmer temperatures. For example, at 15 °C, there are 12 species, and at 32 °C, there are 23 species. This suggests that there might be a positive correlation between temperature and the number of non-native species. This is consistent with research suggesting that many marine species, including non-native or invasive species, may shift their distributions in response to temperature changes, often moving towards warmer waters.
Seth is chatting with his friends in a café. Suddenly, the power goes off, and it’s completely dark. After a few moments, he’s able to see the outlines of the objects and people nearby. Which cells are responsible for his ability to see the objects and people?
cone
glial
olfactory
rod
Answers
It's the rod cells that see better in dim lighting
The correct answer is rod cells.
The rod cells are accountable to visualize night vision and react well towards dim light. The rod cells refer to the photoreceptor cells found in the retina of the eye, which can work in less powerful light in comparison to the other kind of visual photoreceptor, that is, cone cells.
The rod cells are generally witnessed in clustered form at the outer periphery of the retina and are used in peripheral vision.
"when treating a patient who experienced a pulmonary blast injury, you should"
Answers
The answer is avoid giving oxygen under positive pressure.
A blast injury is a complex type of physical trauma resulting from direct or indirect exposure to an explosion. Blast injuries occur with the detonation of high-order explosives as well as the deflagration of low order explosives. These injuries are compounded when the explosion occurs in a confined space.
In treating a pulmonary blast injury, ensure the patient's airway is open and they are receiving sufficient oxygen. Then focus on diagnosing injury extent and managing symptoms. The patient should be closely monitored to update the treatment plan if needed.
Explanation:When treating a patient who has experienced a pulmonary blast injury, healthcare professionals should first ensure that the airway is open and that the patient is receiving sufficient oxygen. Immediate stabilization to prevent further lung damage is crucial. Following this, the focus should shift to diagnosing the extent of the injury and managing related symptoms. This could involve thoracic imaging to visualize the extent of damage, pain control, respiratory therapy, possible use of steroids, wound care, and possible surgery. As with all medical care, the patient should be closely monitored to understand response to treatment and adjust as necessary.
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Which tidal process makes it challenging for organisms to survive in coastal areas?
When the tide comes in, some coastal areas are covered in very deep water.
When the tide comes in, the temperature of the water increases significantly.
When the tide recedes, some coastal areas are exposed to air for many hours.
When the tide recedes, the temperature of the water decreases significantly.
Answers
The receding tide can pose challenges to organisms in coastal areas by exposing them to air for long periods, causing drastic changes in their environment, including temperature and food availability.
Explanation:The tidal process that makes it challenging for organisms to survive in coastal areas is when the tide recedes. During this phase, some coastal areas are exposed to air for many hours. This change in water availability can be a significant stressor for marine organisms that are adapted to life underwater. For example, tidal pools that form when the tide recedes can quickly heat up or cool down, causing drastic changes in temperature. This exposure not only changes the immediate physical environment in which these organisms live but can also affect their ability to find food and avoid predators.
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Assign each characteristic to the appropriate type of muscle fiber.
Answers
Fast twitch:
- few mitochondria (most of the energy comes from acid lactic fermentation)
- low myoglobin content (O2 is not used as the main source of energy)
- shorter twitches
- anaerobic (uses mainly glucose and no O2)
- easily fatigued (as soon as glucose storage finishes fatigue comes in)
- high glycogen content (glucose as the main source of energy and therefore more glucose storage in the form of glycogen)
Slow twitch:
- high myoglobin content (energy comes from O2 and therefore is needed much myoglobin)
- aerobic (uses O2)
- low glycogen content (as O2 is the main source of energy, glucose is not needed as much)
-longer twitches
Fast twitch (type II) and slow twitch (type I) muscle fibres are the two kinds. Fast twitch muscle fibres are distinguished by their capacity to contract quickly despite being highly fatigued, whereas slow twitch muscle fibres are characterised by their capacity to contract for extended periods of time with low degrees of exhaustion.
Running, cycling, and swimming are examples of endurance sports that require slow twitch muscle fibres. They can exert modest levels of effort continuously for a very long time without getting tired.
To maintain balance and posture, slow-twitch muscle fibres are also employed. Sprinting, leaping, and weightlifting are among the activities that predominantly need fast twitch muscle fibres. They can produce a lot of force very rapidly.
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Inorganic nutrients that your body needs, usually in small amounts, are called
Answers
Examples are calcium and iron
They can prevent diseases such as ricket (soft bones) and anaemia (not enough blood)
Why do elephants have pointy tails? answer key?
Answers
Elephants have tufted tails, made of thick, shaggy hair that gathers at the ends.
The bulk of the elephant's tail is quite thin, but the tufted area is larger and more noticeable. For these amazing creatures, the flakes have a variety of uses. By repelling insects, it acts as a defense mechanism, reducing discomfort and reducing the risk of being bitten.
Additionally, elephants may communicate within their social groups by using their tail as a communication tool. Elephants can signal their feelings, intentions or cautions to those around them by wagging, raising or wagging their tails. The tufted hair also contributes to the general well-being of these magnificent animals by providing some insulation and protection for the delicate skin on the tail.
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Elephants have pointy tails which may help in swatting away insects, communication, and movement. These tails are evolutionarily adapted features that assist in their survival and play into their role as ecosystem engineers.
Explanation:Elephants have pointy tails which may serve various purposes, such as swatting away insects, communication with other elephants, or as a tactile sense tool when moving backward. Similar to how other animals have evolved specific traits to adapt to their environments, such as horses developing hooves for swifter movement or whales transitioning to aquatic life, elephant's pointy tails can be considered an evolutionary feature designed to aid their survival in the wild.
Elephants are also known as 'ecosystem engineers' due to their significant impact on vegetation structure and composition. As incredibly large and powerful mammals, their physical adaptations, including their tails, are key to their role in the ecosystem.
It's important to acknowledge that while we have scientific theories and evidence to explain the adaptations of various animals, there remain discussions and ongoing studies in the scientific community about the full scope of these adaptations and the reasons behind them.
The soil in south jersey is best described as an ultisol. what are the characteristics of this soil type?
Answers
The soil in south jersey is best described as an ultisol. An ultisol is a soil type in which the soil has a property or composition of being strongly leeched and that they are usually found in populated areas such as in places in south jersey.
Drug _____ is a pattern of substance use resulting in negative consequences or impairment.
Answers
Which of these statements is not correct about enzymes? 1. enzymes lower the potential energy for the reactions they catalyze. 2. enzymes have specific substrates and optimal conditions. 3. enzymes are mostly proteins that function as catalysts. 4. enzymes may perform a reaction many times until it is degraded. 5. enzyme activity can be regulated by ph and temperature?
Answers
Enzymes are the bio-catalysts which added to a chemical reaction which lowers the activation energy of the reaction. Enzymes have specific substrates and optimal conditions. Thus, the correct option is 1.
What are enzymes?Enzymes are the proteins which act as biological catalysts by accelerating the rate of chemical reactions. The molecules upon which enzymes act are known as substrates, and the enzyme converts these substrates into different molecules called products.
Enzymes act by decreasing the activation energy of the chemical reaction. These are not used up in a chemical reaction and therefore can perform a reaction multiple times until it is degraded. The enzymes show affinity to specific substrates and have optimal conditions such as temperature, pressure, and pH at which they show maximum activity.
Therefore, the correct option is 1.
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Why plants are kept in the dark for a week are still able to conduct cellular respiration.?
Answers
A) explain the hardy-weinberg principle of equilibrium theory. (4 pts.)
b.apply the hardy-weinberg principle to this scenario. in plants, violet flower color (v) is dominant over white (v). if p=.8 and q = 0.2 in a population of 500 plants, how many individuals would you expect to be homozygous dominant ( vv), heterozygous (vv), and homozygous recessive (vv)? how many plants would you expect to have violet flowers, and how many would have white flowers? (6 pts.)
Answers
B.
Homozygous dominant=p²=0.8²=0.64
500(total number of plants in the population)×0.64(percentage of homozygous dominant)=320
It would be expected to have 320 homozygous dominant plants.
Heterozygous=2pq=2×0.8×0.2=0.32
500(total number of plants in the population)×0.32(percentage of heterozygous)=160
It would be expected to have 160 heterozygous plants.
Homozygous recessive=q²=0.2²=0.04
500(total number of plants in the population)×0.04(percentage of homozygous recessive)=20
It would be expected to have 20 homozygous recessive plants.
Violet flowers correspond to the sum of all the homozygous dominant plants and the heterozygous plants, once the violet colour is dominant over the white colour. Violet flowers=320+160=480
White flowers correspond to the homozygous recessivet plants, once the violet colour is dominant over the white colour. White plants=20
A client who has just experienced her second spontaneous abortion expresses anger toward the practitioner, the hospital, and the "rotten nursing care." when assessing the situation, the nurse concludes that the client may be using the coping mechanism of:
Answers
Answer:
Displacement
Explanation:
This defense mechanism is the displacement of an energetic impulse that would initially address one person or situation, another target - neutral or less dangerous - and more socially accepted. In other words, dislocation is a defense mechanism in which a person throws all his frustration and anger at someone else, because at that moment the angry person feels that someone must take responsibility for their degree of stress. An example of this is the case of the client, exposed in the question, she has no control and cannot resolve the reasons why she has miscarriages, but she believes the medical staff could solve this, so she blames them.
The United States Mint began minting and issuing American Indian $1 coins in 2009. Consider the 2011 American Indian $1 coin below.
mc026-1.jpg
Which is an accurate observation?
A) The coin shows that passing the peace pipe was an important tradition in 1621.
B) The coin was minted in the year 1621.
C) There is a woman’s face on one side of the coin.
D) The coin shows that American Indians influenced US history.
Answers
I just took this test, and the correct answer is C
Option C i.e There is a woman’s face on one side of the coin is the correct answer.
The Accurate Observation provides accurate information while observing an object. So while observing physically (accurate observation) the 2011 American Indian $1 coin, we can see woman’s face on one side of the coin. The women is Sacagawea, a Shoshone interpreter who guided Lewis and Clark Expedition into the American West.
Which is not an essential characteristic of high-quality day care?
Answers
When the cell potential is negative in a voltaic cell, the cell reaction will not proceed spontneously
a. True
b. False?
Answers
Answer: A true
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