Dinoflagellates literally means _____.
How is the small intestine adapted for the absorption of nutrients?
In a plant cell, where are the atp synthase complexes located? select one:
a. thylakoid membrane only
b. thylakoid membrane and plasma membrane
c. inner mitochondrial membrane only
d. thylakoid membrane and inner mitochondrial membrane
ATP synthase complexes are located in both the Thylakoid membrane and Inner mitochondrial membrane of a plant cell, playing pivotal roles in energy generation via photosynthesis and oxidative phosphorylation respectively.
Explanation:In a plant cell, the ATP synthase complexes are located in the Thylakoid membrane and the Inner mitochondrial membrane. These are structures within the cell that are involved in energy production. The Thylakoid membrane is found within the chloroplasts and is involved in the photosynthesis process, specifically in light-dependent reactions where ATP (energy) is produced. On the other hand, the Inner mitochondrial membrane is the site of oxidative phosphorylation in which ATP synthase plays a major role.
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What is the action of the binding of muscarine to its receptors in the digestive system?
Most plantonic life in the ocean exists in an area that is very vulnerable to marine pollution. This area is called the __________.
A) bloom zone
B) microlayer
C) coral reef
D) nutrient-rich zone
E) ocean floor
Most plantonic life in the ocean exists in an area that is very vulnerable to marine pollution. This area is called the nutrient-rich zone.
Answer: Option D
Explanation:
Most plantonic life in the ocean exists in the nutrient rich zone of the ocean. Sunlight is essentially the ultimate resource for the photosynthesis of these planktons. The photosynthesis is largely restricted to the upper layer.
Hence they are in the surface where the light penetration is available. This surface area is so rich in nutrients and hence called as the nutrient rich zone. The surface area is always active producing gases. The marine organisms biogenic sediments are all concentrated on the surface layer.
Answer:
no the correct answer is coral reef!! marl me brainliest pleaseee
Explanation:
How do temperatures above the range of maximum growth effect bacterial cells?
a.high temperatures cause water to exit bacterial cells.
b.high temperatures denature essential enzymes and other proteins.
c.high temperatures slow down bacterial metabolism.
d.high temperatures rupture bacterial cell walls. submit for grading save and finish later?
The answer B. The integrity of the structure of proteins and enzymes is essential to their function. High temperatures cause the breaking of the weak hydrogen bonds between functional groups and motifs of protein. Even higher temperatures disrupt disulfide bond in proteins. This loss of structure of proteins and enzymes disrupts the active sites conformation hence the protein or enzyme ceases to catalyse biochemical reactions.
When you swallow food, a flap of tissue called the ________________________ seals off your windpipe?
Cracks in a rock from exposure to pressure are an example of
Is cholesterol considered to be a steroid
Soil reaction is _______. a. the measure of the acidity or alkalinity of soil b. the highest amount of cations soil can absorb c. determined by the types of minerals in the soil d. the layering of soil into horizons
Which domain of life seems to be absent for deep-subsurface communities?
Answer:
Life consists of three domains bacteria, archaea, and eukaryotes. Bacteria and archaea are the two domains which can be found everywhere on the earth. Organisms from these two domains can be found in extreme conditions where eukaryotes cannot survive. These organisms are called extremophiles.
Deep subsurface has some extreme environment like high temperature and pressure where survival of eukaryotes is not possible but organisms from domain archaea and bacteria can flourish there.
These microorganisms have evolved some mechanism like special enzymes and protecting capsules which protect them in extreme climate of deep subsurface.
Therefore the domain of life seems to be absent for deep-subsurface communities is eukarya.
1-A species of marine snails have either solid or striped shells. Scientists found that 57 percent of the snail population was striped, and 33 percent was solid. Sea birds are the main predator and when scientists studied their diet, they found that the birds ate more striped snails than solid snails. What could scientists conclude about the snails?
Birds preferred the solid snails. Rates of predation determine shell pattern. The shell pattern is due only to environmental variation. There may be other factors in the ecosystem that favor striped snails. Question 4(Multiple Choice Worth 3 points)
2- In 1989, the Exxon Valdez spilled nearly 42,000,000 liters of oil into Prince William Sound, Alaska. How would this spill be classified? Abiotic environmental Biotic environmental Genetic Pathogenic
Answer:
1. The correct answer would be "There may be other factors in the ecosystem that favor striped snails".
Solid snails are less hunted by sea birds as compared to the stripped snails. Therefore, we can conclude that the solid snail provides some kind of survival advantage to the population.
However, the percentage of solid snails as low as 33 percent. Thus, there must be some other environmental factors which favor the high percentage of striped snails.
2. The correct answer would be abiotic environmental.
In ecology, the abiotic component refers to the non-living component of the environment. For example, air, water, mountains, soil, minerals et cetera.
Similarly, oil being a chemical is a non-living thing.
Thus, it is an abiotic environmental factor.
Final answer:
Scientists might conclude that other factors in the ecosystem favor striped snails beyond merely predatory patterns, such as camouflage adaptation. The Exxon Valdez oil spill is classified as an abiotic environmental disaster.
Explanation:
Given the information that 57 percent of the snail population was striped and 33 percent was solid, and considering that sea birds ate more striped snails than solid, one could conclude there may be other factors in the ecosystem that favor striped snails. Since birds eat more striped snails despite their prevalence, it implies the birds do not prefer one type over the other based on appearance alone. Therefore, the pattern of predation does not seem to be the sole factor determining the shell pattern of these snails. Factors such as camouflage may play a role as indicated by research suggesting that snails with certain colorations may be better adapted to their native regions, possibly to avoid predation effectively.
Regarding the Exxon Valdez oil spill in 1989, since it was an oil spill, it would be classified as an abiotic environmental disaster. This term is used to describe a non-living chemical or physical factor in the environment that has a significant impact on living organisms and the ecosystem.
A microbe reproduces by binary fission every 20 minutes under favorable conditions. if you started with one cell, how long would 10 generations take and how many bacteria would be present if all the conditions were just right
In 20 minutes, a single bacterial cell divides in to two. If the conditions are optimal, for 10 generations of a bacterial cell, it will require 3 hours and 20 minutes to produce 1,024 copies of a bacterial cell.
Name and describe a predator-prey relationship in the Coral Reefs.
Not in a specific Coral Reef it can be any
One prey-predator relationship in the reef is the eel-shrimp relationship. The eel predates on shrimps, crabs and small fishes. The eel hides and awaits its prey in the crevices of the coral reefs. They only emerge from the crevices in the night to hunt shrimps and other prey.
If the light colored moths were better adapted to the light colored trunks of the trees, why were dark colored moths still present in the population of biston betularia prior to 1845?
What is the limiting factor for the growth of trees in the tundra? question 1 options:
a.permafrost
b.low precipitation
c.insufficient minerals in bedrock
d.ph of soils
e.lack of sunlight?
which emotion has been particularly implicated in coronary heart disease?
a. hostility
b. sadness
scientists have never seen the ancient horses shown in figure 16-4 what do you think was the main type of evidence scientists used to prepare these diagrams
It is likely that scientists used fossil evidence to prepare these diagrams. Even if a complete fossil of a particular species is never found, a critical mass of fossil evidence can reveal a lot of information. Even a single key leg bone can provide a good idea of the physiological form and size of that individual animal. Continual fossil discoveries and debate amongst paleontologists will begin to develop a consensus of what the species likely looked like.
What is the rationale for administration of ranitidine to a patient who is experiencing acute adrenal insufficiency?
Acer japonica, Acer rubrum, and Acer saccharum are
A) three families of maple trees.
B) three different names for the same maple tree.
C) three species of maple trees, all in the same genus.
D) three varieties of maple trees, all in the same species.
Answer
Acer japonica, Acer rubrum and Acer saccharum are three species of maple trees,all in the same genus.
Explanation
A species is a group of individuals that potentially interbreed in nature.The Maple trees fall under the genus Acer in the family of Aceraceae. Most species of the Maple tree are deciduous and could be spotted easily by observing the leaves which are palmate and lobed.Its seeds are winged in appearance and are called samaras.
A client diagnosed with human immunodeficiency virus (hiv) infection states, "i'm afraid of gaining weight, so i always supplement my diet with vitamins." which response by the nurse is appropriate?
Choose all the answers that apply. The mantle _____. is the thinnest layer is the thickest layer is the hottest layer is made of solid rock sometimes breaks through the crust
The Earth comprises of a series of layers, that is, the crust, the mantle, the outer core, and the inner core.
The crust floats on a layer of semi-molten rocks known as the mantle. The mantle is the thickest layer of Earth, that is, of about 3000 kilometers and comprises of semi-molten rocks. In the mantle, the molten rock is known as magma.
Thus, mantle is the thickest layer of the Earth.
When the oxyhemoglobin curve shifts during exercise what is the result?
Energy plus matter is sufficient for continued development of order, complexity or growth.
a. True
b. False
SOS:
This answer is FALSE!!!
Hope this helps!!
The by-products of cellular respiration include
The by-products are : ATP, CO2 and H2O.
The yield of ATP (energetic molecule) varies depending on whether it is aerobic (in the presence of oxygen) or anaerobic (in the absence of oxygen) respiration.
Breathing produces carbon dioxide (6 for a glucose molecule) and water (6 molecules for 6 dioxygen molecules).
The fact that the majority of human newborns weigh around 7 pounds is reflective of ________________.directional selection stabilizing selection disruptive selection advantageos selection
The fact that the majority of human newborns weigh around 7 pounds is a reflective of stabilizing selection. Thus, the correct option is B.
What is Stabilizing selection?
Stabilizing selection is a kind of natural selection in which the population mean of a species stabilizes on a particular non-extreme trait value with majority of the population. This is the most common mechanism of action for the natural selection of a species because most of the traits do not appear to change drastically over a period of time.
Stabilizing selection is beneficial as it tends to narrow the variation in the phenotype of a population over time. This is the most common type of selection observed because it is associated with the adaptation of an organism to their environment. Thus, the weight of human newborns which is found to be 7 pounds for majority of individuals is an example of stabilizing selection.
Therefore, the correct option is B.
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Compare and contrast passive transport with active transport
What types of minerals are among the most widely used in the world?
A. Metals
B. Alloys
C. Gemstones
D. Nonmetals
Final answer:
The most widely used minerals in the world are metals, like iron and aluminum, and nonmetals used in industry. Silicates are the most abundant mineral family, and metamorphic rocks form from sedimentary or igneous rocks. Gemstones and alloys are also valuable, but not as widely used as pure metals. So the correct answer is option A.
Explanation:
Among the most widely used minerals in the world are metals and to a lesser extent, nonmetals. Metals, such as iron, aluminum, and copper, are essential due to their electrical and thermal conductivity, malleability, ductility, and opacity. They are foundational in a vast number of industries, ranging from construction to electronics. Aluminum, for example, is used in various forms, from construction materials to packaging like aluminum foil. Meanwhile, nonmetallic minerals have a crucial industrial role as well, being used for chemicals, building materials, fertilizers, and abrasives.
The most abundant mineral family is the silicates, which form a significant component of the Earth's crust. Metamorphic rocks can form from both igneous and sedimentary rocks, under conditions of high pressure and temperature.
Minerals such as gemstones like diamonds and rubies, while being widely appreciated for their beauty and use in jewelry, are not among the most used materials industrially. Similarly, alloys, which are mixtures containing at least one metal, are very important in manufacturing but are a secondary category compared to pure metals.
The ________ is responsible for the initiation of wind
What is the main difference in purpose between the mitosis and meiosis
Answer:
Meiosis involves two divisions of the nucleus, while mitosis involves only one. Meiosis produces four sex cells that are haploid, meaning they have half the number of chromosomes. Mitosis, on the other hand, produces two cells that are identical to the original cell. These cells are diploid, meaning they have pairs of chromosomes.
Explanation: