The reactions of lactate fermentation in muscle cells happen in the
Answer:
Lactic acid fermentation
Explanation:
the 10% rule of ecosystems says that only 10% of the energy is passed in to the next trophic level. what happens to the rest of the energy?
A- it goes back into plants
B- we dont know what happens to it
C- it gets released into the environment as heat
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What is the relationship among force, mass, motion and speed of motion?
Answer:
Ye haw
Explanation:
Newton's second law of motion seems simple enough: Push on an object of a certain mass, and it accelerates based on the amount of force and mass. A small force with a large mass results in a slow acceleration, and a large force with a small mass gives a fast acceleration
Smallholders have historically been for-profit commercial horticulturalists rather than subsistence farmers.
True
False
Answer:
true
Explanation:
Organisms produced as a result of mitosis exhibit a great deal of genetic variation.
Answer:
false
Explanation:
Paleontologists are scientists who study evidence of past life on Earth. Which method do paleontologists most likely use to determine the forms of life that existed millions of years ago?
A. Examine current species of plants and animals
B. examine current species of plants and animals
C. research past species in the library
D. interview older scientists
E. examine fossils records
Answer:
e
Explanation:
.....................
The more diverse an ecosystem is - *
5 points
A) The more threatened its population are
B)The more similar the species will be
C)The more healthy and stable it is
D)The fewer varieties of species are present
Answer: C
Explanation: I took the test hoped this helped :)
27. How many senators does each state have?*
3
1
4
2
Government
Answer:
2
Explanation:
Answer:
2
Explanation:
(a) Describe a method to measure the mean number of weeds per m’in each field.
Answer:
Describes the role of monitoring in adaptive management. ... each vegetation attribute and advice on field techniques and tools are provided. ... If you are using sampling to estimate population sizes or mean values (such as density, ... obtain the true average number of plants per quadrat (4 plants/quadrat).
Explanation:
Quadrat method is the most widely used method for population determination in plants and small immobile organisms.
What are the methods for population determination?The Quadrat method is the most useful method for population determination for immobile organisms such as plants or for very small and slow-moving organisms. The plots used in this method is called quadrats, which may be used to determine the population size and density of a population. Here, each quadrat marks off an area of the same size which is typically, a square area or other shape such as circular or other within the given habitat.
The most accurate way to estimate the weed population is to count the number of plants in an area of known size at a different number of locations. Through the use of a quadrant, which may be square or circular in shape weed plant counts can be carried out.
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A bottle of concentrated 20 M ammonia solution needs to be diluted to
1 M strength for laboratory use. In order to make up 1 L of 1 M
ammonia solution, how much concentrated ammonia must be diluted?
Answer:
The aim of question is to know about molarity of ammonia solution 25% . ... If you have 17 g NH3 in 1000 ml H2O, you have a 1M NH3. ... Can you not titrate it using standardised acid? ... Mass concentration of ammonia in stock solution = ... So 1 M means 35.04gr in a liter of water and because the solution ...
9 answers
·
Top answer:
The ammonia solution (NH3) of 25% means 25 gr NH3 in 100 ml water.
Explanation:
According to the geological record, during which geological time period were the sands and clays underlying Long Island and Staten Island deposited?
Answer:
The correct answer is - Cretaceous period.
Explanation:
The Magothy Formation occurred during the cretaceous period. The Magothy formation is the formation of the consolidated sand and layers of clays deposited beneath Quaternary glacial cover throughout most of Long Island, and the south shore of Staten Island.
This formation is composed of gravel of clay and coarse sands. The thickness ranges between 10 and 200 feet. It is formed above the Raritan Formation which is upper clay and below slit deposits formation.
most of a cell's life is spent in carrying out its specific tasks
Answer:
INTERPHASE
Explanation:
PLZ HELP I AM TAKING A QUIZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Are involuntary muscles
A) cardiac
B) smooth
C) skeletal
Answer:
QUESTION:
Are involuntary muscles
A) cardiac
B) smooth
C) skeletal
ANSWER:
muscle governing reflex functions and not under direct voluntary control especially: smooth muscle.
Explanation:
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Why might scientists have additional questions to answer at the end of an
investigation?
5. The ____
controls the rate of breathing.
Answer: respiratory control centers
Explanation: respiratory control centers: The medulla which sends signals to the muscles involved in breathing, and the pons which controls the rate of breathing.The medulla oblongata is the primary respiratory control center. Its main function is to send signals to the muscles that control respiration to cause breathing to occur.
Answer:
medulla oblongata
Explanation:
its a part of the raspatory response in your brain
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A cell from a tissue culture has 38 chromoses after mitosis and cytokinesis one daughter cell has 37 what might occurred to cause the abnormal chromosome number
Answer:
occurred an aneuploidy (monosomy)
Explanation:
Aneuploidy can be defined as a chromosomal aberration in which the chromosome number is abnormal. In an aneuploidy, the number of total chromosomes in daughter cells is not an exact multiple of a haploid set, by either gaining or losing chromosomes during mitosis. Aneuploidies are common in cancer cells and in different types of chromosome disorders. Moreover, monosomy is a type of aneuploidy in which daughter cells have a single chromosome copy instead of the two copies found in diploid cells. For example, Turner syndrome is a monosomy caused by the loss of the X chromosome.
factors affecting environment and development
Answer:
Environmental factors affecting plant growth and development include light, temperature, water, humidity, and nutrition. At the time of nurturing a tree, it is important to know how these factors could affect the growth and development of a plant. Knowledge about environmental factors helps the owner promotes proper growth.
What is the Precambrian time A) 4 billion years between the first eon and the last won B) the first won C) the last eon D) the first three eons
Explanation:
The Precambrian covers almost 90% of the entire history of the Earth. It has been divided into three eras: the Hadean, the Archean and the Proterozoic. The Precambrian Era comprises all of geologic time prior to 600 million years ago.
plssssss help
No links
Answer:
1. Net force
2. Newton
3. Balenced
4. Un Balenced
Correct me if im wrong
The most abundant element in earths continental crust by weight is
The most abundant element in earths continental crust by weight is oxygen.
What is a body fossil according to the video?
Answer:
Body fossils are the remains of the body parts of ancient animals, plants, and other life forms.
Explanation:
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Which of the following statement is correct about about the hierarchy of the taxonomic system currently used to classify organisms
A. Many different classes of organisms belong to the same order
B. All organisms of given phylum belong to the same kingdom
C.Many different families of organisms belong to the same Genus
D. All organisms and given order belong to the same species
Answer:
A
Explanation:
Took the test
The statement 'all organisms of given phylum belong to the same kingdom' is correct about the hierarchy of the taxonomic system (Option B).
In the classification system, the Phylum is a division within the Kingdom.It means that all organisms that form a Phylum are found in the same Kingdom.The current system of biological classification is based on evolutionary and taxonomic features.In conclusion, the statement 'all organisms of given phylum belong to the same kingdom' is correct about the hierarchy of the taxonomic system (Option B).
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Arrange these muscle contraction events in the correct order.
1. nerve stimulus
2. myosin attaches to actin causing a twitch
3. acetylcholine binds to receptor
4. calcium channels open
5. sarcoplasmic reticulum releases calcium
6. impulse rides along sarcolemma
7. exocytosis occurs releasing acetylcholine into synaptic cleft
8. calcium binds to troponin moving tropomyosin out of the way
9. impulse enters the cells via the t-tubule
10. acetylcholine vesicles move to endplate
Answer:
1. nerve stimulus
4. calcium channels open
10. acetylcholine vesicles move to endplate
7. exocytosis occurs releasing acetylcholine into synaptic cleft
3. acetylcholine binds to receptor
6. impulse rides along sarcolemma
9. impulse enters the cells via the t-tubule
5. sarcoplasmic reticulum releases calcium
8. calcium binds to troponin moving tropomyosin out of the way
2. myosin attaches to actin causing a twitch
Explanation:
The central nervous system generates an action potential (1) that travels to the muscle fiber activating the calcium channels (4). Calcium triggers vesicles fusion to the presynaptic membrane (10) releasing acetylcholine (Ach) into the synaptic space (7). Once there, Ach binds to its receptors (3) on the postsynaptic membrane of the skeletal muscle fiber, causing ion channels to open. Positively charged sodium ions cross the membrane to get into the muscle fiber (sarcoplasm) and potassium leaves the cell. The difference in charges caused by these ions transport charges positively the muscle fiber membrane (6). It depolarizes. The action potential enters the t-tubules (9) depolarizing the inner portion of the muscle fiber.
Contraction initiates when the action potential depolarizes the inner portion of the muscle fiber. Calcium channels activate in the T tubules membrane, releasing calcium into the sarcolemma (5). At this point, the muscle is at rest, and the tropomyosin is inhibiting the attraction strengths between myosin and actin filaments. Tropomyosin is obstructing binding sites for myosin on the thin filament. When calcium binds to troponin C, troponin T alters the tropomyosin position by moving it and unblocking the binding sites (8). Myosin heads join to the uncovered actin-binding points forming cross-bridges (2), and while doing so, ATP turns into ADP and inorganic phosphate, which is released. Myofilaments slide impulsed by chemical energy collected in myosin heads, producing a power stroke. The power stroke initiates when the myosin cross-bridge binds to actin (2). As they slide, ADP molecules are released. A new ATP links to myosin heads and breaks the bindings to the actin filament. Then ATP splits into ADP and phosphate, and the energy produced is accumulated in the myosin heads, which starts a new binding cycle to actin. Finally, Z-bands are pulled toward each other, shortening the sarcomere and the I-band, producing muscle fiber contraction.
1.What are the three different patterns of leaf attachment?
2. What is the purpose of a plants stem?
3.What are the differences in the kinds of stems?
4. What are the parts of stems?
5.What are roots and what are the functions of roots?
Answer:
1) alternate, opposite and whorled
2) the primary functions Of the stem are to support the leafs to conduct water and minerals to leafs, where they can be converted into usable products by photosynthesis
3) stesms stores food, water, and nutrients. cells of steam , meristems, produce new living tissues. underground stem, aerial stem and subaerial steam are three different stem
4) the are six elements 1 nodes 2 internodes 3 terminal or apical bud 4 lateral or axillary bud 5 petiole 6 pedecel. while the two organd are 7 leaves and 8 flowers
5) roots = in botany that parts of vascular plant normally underground FUNCTIONS are anchorage of plant absorption of water and dissolved minerals and conditions of these to stem, and storage of reserve foods
Explanation:
well that took longer than expected
Which factor correlated with human populations losing skin pigmentation? (1 point)
O moving away from the poles
moving away from mountainous environments
moving away from shaded environments
moving away from the equator
Explanation:
moving away from shaded environment
The main factor correlated with human populations losing skin pigmentation is moving away from the equator.
What is melanin?Melanin is a specific protein associated with skin pigmentation in humans and mammals in general.
In humans, melanin levels are related to the amount of solar radiation, which is a consequence of latitude.In regions of low latitude, melanin levels are higher than in high latitude regions.In conclusion, the main factor correlated with human populations losing skin pigmentation is moving away from the equator.
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My teacher's notes are jumbled so I can't really answer these properly
Answer:
search up a diagram of an eye simplified
Explanation:
it worked for me
Fill in the blanks on the table with the names of the atmospheric layers, their chemical
compositions, temperature trends, and aircraft needed for travel. (10 points)
Answer:
Hope this helps
The atmosphere of Earth is composed of five different layers namely exosphere, thermosphere, mesosphere, stratosphere and troposphere.
Different layers of the atmosphere have various functions are located at different temperature and pressure regions.
The correct answers for the blanks are attached in the image below:
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It is not enough to be in the presence of a pathogen like a bacteria or virus, there also needs to be an environment in which the pathogen can grow.
a. True
b. False