Answer:
The answer is B. Dry soil
Explanation:
Plants can't continue to transpire without wilting if the soil is very dry because the water in the xylem that moves out through the leaves is not being replaced by the soil water. This condition causes the leaf to lose turgor or firmness, and the stomata to close
20. Which sector creates the most fossil fuel emissions?
agriculture
industry
electricity generation
transportation
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The 2 meters of DNA that makes up the human genome is able to fit in one cell because the chromatin is ______.
Multiple choice question.
A. only used once and then packed into rodlike chromosome
B. organized around proteins
C. digested and reformed on a regular basis
D. wound around the inner circumference of the cell membrane
Answer:
B. Organized around proteins
Explanation:
Because the chromatin is arranged around proteins, the 2 meters of DNA that make up the human genome may fit in one cell.
How does a DNA fit into every cell?Because the entire DNA strand must fit inside the cell's nucleus, it must be wrapped very tightly. The DNA is wound around structural histone proteins, which serve as a scaffolding for the DNA to be wound around, to achieve this.
Do 2 meters of DNA exist?Human cells contain around 2 meters of DNA if it were stretched end to end. Yet, the nucleus, which contains the DNA, has a diameter of only around 6 micrometers. This is equivalent to stuffing 40 km (24 miles) of extremely, geometrically speaking.
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How can disease transmission be traced to the original carrier?
Answer:An individual capable of transmitting a pathogen without displaying symptoms is referred to as a carrier. A passive carrier is contaminated with the pathogen and can mechanically transmit it to another host; however, a passive carrier is not infected.
Explanation:
The streamlined shape of the dolphin, seal and other swimming animals is most important for
A) overcoming the forces of gravity acting on the animal
B) reducing the mass of the animal's body
C) maintaining a consistent speed in the dense medium
D) reducing drag from the water they must swim through
D) reducing drag from the water they must swim through
The streamlined shape of dolphins, seals, and other swimming animals helps to reduce the drag that they experience as they move through the water. Drag is a type of force that acts in the opposite direction of motion, and it can significantly slow down an animal's movement through the water. By having a streamlined shape, these animals are able to minimize the amount of drag that they experience, which allows them to swim more efficiently and with less effort. This is especially important for animals that need to swim long distances or maintain a consistent speed in the water.\
D) reducing drag from the water they must swim through
The streamlined shape of dolphins, seals, and other swimming animals helps to reduce the drag that they experience as they move through the water. Drag is a type of force that acts in the opposite direction of motion, and it can significantly slow down an animal's movement through the water. By having a streamlined shape, these animals are able to minimize the amount of drag that they experience, which allows them to swim more efficiently and with less effort. This is especially important for animals that need to swim long distances or maintain a consistent speed in the water.
What is the alien invasion in the Florida Everglades?
Organic semiconductors are a new technology that scientists are considering for the next generation of solar
panels. Manufacturers want to produce efficient semiconductors at a low cost. Which type of organic
semiconductors would be most desired as a solar panel technology?
The specific properties of the most desired organic semiconductors for solar panel technology may evolve as advancements are made in the field.
In the context of solar panel technology, the most desired type of organic semiconductors would typically possess the following characteristics:
High Efficiency: The organic semiconductors should have a high power conversion efficiency, meaning they can efficiently convert sunlight into electricity. This is crucial for maximizing the electricity output of solar panels.
Tunable Bandgap: Organic semiconductors with a tunable bandgap would be advantageous. The bandgap determines the range of light wavelengths that can be absorbed by the material. A tunable bandgap allows for optimization to match the solar spectrum, enabling better absorption of sunlight and improved overall efficiency.
Long Operational Lifetime: The organic semiconductors should be stable and exhibit a long operational lifetime. Solar panels are expected to endure outdoor conditions for many years, so the materials used should be resistant to degradation, such as from exposure to UV radiation or moisture.
Scalability and Low Cost: Manufacturers aim to produce organic semiconductors on a large scale at a low cost. Therefore, desirable organic semiconductors should be readily synthesized using cost-effective methods and be compatible with high-volume manufacturing processes.
Environmental Friendliness: Organic semiconductors that are environmentally friendly and have low toxicity are desirable. This is aligned with the goal of sustainable and clean energy technologies.
It is important to note that the field of organic semiconductor research is still evolving, and scientists are continually working to improve the performance and characteristics of these materials.
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which of the following statements correctly describe meiosis
Which of the following evidence supports the theory of plate tectonics? (7 points)
a: The age of rocks and mountains on the edge of neighboring continents varies.
b: Fossils from the same species are found on only one continent.
c: Iron-rich, molten magma rocks no longer align to Earth’s poles in many locations.
d: Grooves created from glacier movement travel in opposite directions on each continent.
Grooves created from glacier movement travel in opposite directions on each continent. This is the proof or evidence of the theory of plate tectonics.
What are the tectonic plates ?It is the solid and massive irregular shaped slab of solid rock, generally composed of continental and oceanic lithosphere.
Glacial grooves on the rocks shows that the various proofs for moving glaciers towards the Atlantic ocean and from the Atlantic oceans onto the South America.
When oceanic or continental plates slide past each other in opposite directions or even in the same direction but with a different speeds and at that time a transform boundary is formed.
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In the process of cellular respiration, what is consumed and what is produced?
Glucose is consumed, and carbon dioxide is produced.
please help I don't know the answer.
this molecule is split into oxygen
protons, and electrons during light
dependent reactions is called?
Answer:
Oxygen and hydrogen ions are also formed from the splitting of water. To replace the electron in the reaction center, a molecule of water is split. This splitting releases an electron and results in the formation of oxygen (O2) and hydrogen ions (H+) in the thylakoid space.
Is the stalk that emerges from the green "leaf like" tissue gametophyte or sporophyte?
How do the layers of the atmosphere help to understand better the dynamics of the atmosphere and its relationship to the hydrosphere and lithosphere?
There are various layers that make up the atmosphere, and each has distinct properties and functions. Both weather generation and energy transmission take place in the troposphere, which is closest to the Earth's surface.
The stratosphere shields the Earth from damaging UV radiation along with the ozone layer. Most auroras happen in the mesosphere, where meteors burn up. Modern technology is dependent on the thermosphere, where the majority of the Earth's satellites orbit and where communication signals are sent.
The dynamics of the atmosphere and its interactions with the hydrosphere and lithosphere are better understood thanks to these layers. Foreseeing and minimising environmental problems like climate change and preserving our world, it is essential to understand the significance of each layer.
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Which technologies made it possible to maintain a controlled environment for cell cultures?
Answer:
Cell counter inverted microscope and liquid nitrogen storage incubator are the technologies used in the cell culture.
Explanation:
Cell culture needs control environment for the production of cells in order to avoid contamination from other microbes. For this reason, liquid nitrogen storage incubator is used which decreases the temperature in order to slow down the process of cell division and other cellular processes and also provide safety from contamination. Cell counter inverted microscope is used to see the growth of the cells at the bottom of storage tank.
Answer:
incubator
Explanation:
HELP PLEASE-What is an example of a chemical mediator?
A) serotonin
B) antigens
C) pathogens
D) phagocytes
In the past 250 years how many volcanoes have erupted?
Answer:
Graph showing known historically active volcanoes, number of volcanoes reported to be active each year, and population. The line labeled "Known Historically Active Volcanoes" (right scale) is the cumulative number of volcanoes with an historically recorded eruption by that year. "Volcanoes Active Per Year" since 1400 CE (black line) and 10-year running mean of same data (thick red line) is also based on reported eruptions (those with uncertainty dates greater than 1 year are not included, nor are uncertain eruptions). "Population" (right scale) is the world's estimated human population; data from McEvedy and Jones (1978) and (since 1750) Population Reference Bureau, Washington, D.C. See text for further explanation.
A dramatic increase in both the number of historically active volcanoes and recorded eruptions took place about 1500 CE. These resulted in part from the great Spanish/Portuguese marine explorations – the Age of Discovery – around the end of the 15th century, when explorers opened Latin America and much of the western Pacific to European record-keeping. Perhaps equally important was the development and widespread distribution of the printing press in the late 15th century, markedly increasing the likelihood that new volcanological records would survive. Through the 17th and into the early 18th century the recognition of additional active volcanoes generally corresponded with steadily increasing eruption reports. By the 18th century global trade was flourishing, the Industrial Revolution was under way, and the heightened reporting of eruptions noticeably accelerated the discovery of new volcanoes. The list has continued to grow, with several important volcanic regions such as New Zealand, Alaska, and Hawaii being unrepresented until the last 250 years.
Explanation:
please mark me as brainlest answer hope this helps
Tropomyosin is a rod-shaped protein with a mass of 70 kDa and a sedimentation coefficient of 2.6S. Hemoglobin is a spherical protein with a slightly smaller mass of 65 kDa, but a much higher sedimentation coefficient of 4.31S. Which property of tropomyosin accounts for its slow sedimentation?
a. high particle density
b. elongated shape
c. high mass
d. low partial specific volume
e. overall net charge
Answer:
Explanation:
m
What term that best describes the "mini organs" of the cell? *
A: Cell membranes
B: Nucleus
C: ER
D: Organelles
Answer:
D organelles
Explanation:
Its the actual name for "mini organs" in a cell.
The picture shows a food web.
Which two organisms in the food web are primary consumers?
fox and rabbit
rabbit and grasshopper
shrew and snake
snake and fox
Rabbits and grasshoppers are primary consumers in a given food web that eats the producer, hence option B is correct.
What are primary consumers?Primary consumers are the organism that directly consumes the producers in the food chain.
In an ecosystem, there are some tropic levels on which different organisms are placed, producers are placed at the base of the food chain to make their own food, and these producers fulfill the energy need of the consumers.
Therefore, rabbits and grasshoppers shown in the food web directly consume the producer (grass), so they are called primary consumers.
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The given question is incomplete so the most probable complete question is,
The picture shows a food web attached below.
Which two organisms in the food web are primary consumers?
fox and rabbit
rabbit and grasshopper
shrew and snake
snake and fox
PLEASE HELP
Photosynthesis involves oxidation - reduction and the movement of electrons from one molecule to another. Recall what oxidation and reduction reactions are and study the figure to identify A and B as either oxidation or reduction.
Answer:
There you go!!
Explanation:
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The testes are male reproductive organs that produce and store _______, which is the male gamete containing half of the DNA in somatic cells. The typically 28-day process of egg release from the ovaries and, if fertilization does not occur, release from the body, is known as the _______ cycle. If two eggs are released and fertilized by two different sperm, then ________ twins will occur. If a hormone operates by entering a cell's nucleus and altering the expression of its DNA, then it is classified as a/n _______ hormone. Once sperm cells are mixed with seminal fluid to provide protection and nutrition, this mixture is known as _______. The bulbourethral and _______ glands play an important role in providing additional fluids to semen production. The first phases of a new zygote's growth through mitosis occur in the _______. The ________ germ layer will eventually develop into the skin and nervous system. A fetus growing in the uterus does not eat food or drink water. Instead, important nutrients, antibodies, and molecules pass from the mother through the _______. Make a list, or write a short paragraph, that explains the major stages of pregnancy after fertilization, through childbirth. Provide as much detail as possible.
Answer:
sperm,menstrual, fraternal last one is Umbilical cord
Explanation:
I looked up
Answer:
Answer:sperm
menstrual
fraternal
steroidal
semen
prostate
fallopian tube
ectoderm
placenta
After fertilization of an egg by sperm in the fallopian tubes, a blastocyst forms and implants on the uterus wall. These cells then begin to differentiate. During gastrulation, the three main germ layers form (endo, meso, and ectoderms). During neurulation, the notochord and neural tube form. The neural tube must close to avoid birth defects or conditions. The amniotic sac forms, and the placenta forms to provide a link from the mother to the fetus through the umbilical cord. During months 4-6, bones replace cartilage and organs develop. In months 7-9 the fetus matures its lungs and central nervous system. Finally, oxytocin triggers childbirth, when uterine contractions push the baby from the vagina.
Explanation:
What is macroevolution?
Answer:
major evolutionary change
Explanation:
Which of the following is a gas fossil fuel that is formed from the remains of marine organisms?
O Coal
O Hydropower
O Petroleum
O Natural gas
Answer:
petroleum i think
if not then natural gas
Explanation:
Water enters the body of a sponge through the
spongocoel
ostia
mesohy
osculum
Answer:
spongocoel
Explanation:
by the help of spongocoel water go through it
your brother has a bacterial infection. he tells you he going to the gym where he plans to sit in the sauna for an hour. he thinks that this will cure his infection, because the heat in the sauna will denature the enzymes of the bacteria making him ill. you are a nursing student who is currently studying microbiology. you tell him that
Answer: His Plan with not work to fix that
Explanation: Homeostasis will keep his body temperature constant even in the sauna, so the bacteria (and his normal microbiota and body cells) will not be impacted.
Help Please!!!! which of these is closest to the number of molecules of ATP we get from Anaerobic metabolism of one molecule of glucose?
A)2
B )6
C)10
D)32
E)48
Which molecule is the monomer used to build polypeptides or protein polymers? Draw this molecule and label all five parts.
Please help!
Identify the highlighted structure.
The canaliculi are the highlighted structure. The extracellular matrix is the connective tissue's prominent component.
Which structure has white pulp highlighted?The white pulp as well as the red pulp make up the human spleen. Its periarterial lymphatic sheathing (PALS) and follicles, two collections of mobile T- and B-lymphocytes, respectively, make up the white pulp.
What layer has been highlighted?The pia mater of the dermis is the skin layer that is highlighted. The structure that is highlighted secretes sebum. The structure that is highlighted secretes sebum.
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help me!!!!!!!!!!!!!
Explanation:
2b go to #9
3b go to #3
5a go to #7
5b go to # 11
6a go to #1
7a go to #10
7b go to #3
9a go to #1
9b go to #8
10b go to #1
11a go to # 5
11b go to #2
Proteins in the plasma membrane are often the target of medicines. In paragraph format (at least four sentences), explain why this is the case.
Argeting proteins in the plasma membrane offers a promising approach for developing new medicines that can be used to treat a wide range of diseases and conditions.
What is Plasma Membrane?
The plasma membrane, also known as the cell membrane, is a thin layer of lipid and protein molecules that surrounds and encloses the cell. It serves as a barrier between the interior of the cell and its external environment, regulating the movement of substances in and out of the cell. The plasma membrane is composed of a phospholipid bilayer, which consists of two layers of phospholipid molecules with their hydrophilic (water-loving) heads facing outward and their hydrophobic (water-fearing) tails facing inward. Embedded within the phospholipid bilayer are various proteins, which perform a variety of functions such as transporting molecules across the membrane, receiving signals from other cells, and providing structural support.
Proteins in the plasma membrane are crucial for many cellular processes, including cell signaling, transport, and recognition. As such, they are often the targets of drugs and medications because they can be used to modulate or disrupt these processes. For example, many cancer drugs target proteins in the plasma membrane that are involved in cell signaling pathways, as this can help to slow down or stop the growth of cancer cells.
Additionally, drugs that target membrane transporters or channels can be used to regulate the flow of ions or molecules in and out of cells, which can be useful for treating diseases such as hypertension or cystic fibrosis.
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