Answer:
Root pressure, in plants, a force that helps to drive fluids upward from the soil into the water-conducting xylem vessels. It is primarily generated by osmotic pressure in the cells of the roots and is partially responsible for the rise of water in plants.
Explanation:
6. In a non-competitive environment what is the result of a catastrophic disturbance? I
Answer:Ecologists generally distinguish between relatively small, frequent disturbances and large, infrequent, so-called "catastrophic" disturbances. ... Examples of the large, infrequent disturbances include volcanic eruptions, hurricanes, and major wildfires
Explanation:
Answer:
They typically cause a sudden decrease in population size, and in some cases may eliminate entire subpopulations
Explanation:
Which situation is the best example of secondary succession?
A) An organism survives a difficult winter
B) The population in an area remains the same
C) One species replaces another species in an ecosystem after a forest fire
D) Each of several species uses the same amount of resources
Answer:
The answer is C
Explanation:
Secondary succession often occurs after a disaster, the ecosystem is not as primary as the primary succession, so it will take shorter time to recover. New species will occur in this place, and rebuild a constant environment. C is exactly the situation.
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The best example of secondary succession is when one species replaces another species in an ecosystem after a forest fire. The correct option is C.
What is secondary succession?Secondary succession is a type of ecological succession that occurs on substrates that already have soil, and at least some organisms residing on it, like a forest or a community that has been disrupted by wildfire, tornadoes, or hurricanes.
The secondary succession in an ecosystem happens when a primary community is destroyed, for example, by wildfire. In secondary succession, the soil, seeds, and rhizomes survived in the soil and provides the foundation for the new community that is about to develop.
The rate of secondary succession varies according to the time taken for the primary community to regenerate, the level of disturbance of the habitat, the availability of propagules, and the dispersal capability of the species involved.
Therefore, the correct option is C.
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Where do majority of tornadoes occur in the United States?
Answer:
central united states
Explanation:
mainly in this area because of cold air coming in from canada and warmer air coming from the gulf of mexico meeting and causing tornados.
Answer:
A majority of tornadoes that occur in the United States, occur in the Midwest and Southeast region of the United States.
Explanation:
Tornadoes can impact just about every U.S. state, but the majority of these storms are concentrated in states throughout the Midwest and Southeast. In fact, of the average 1,137 tornadoes that occur in the United States each year, 64% of them form in states located in “Tornado Alley” and “Dixie Alley”, two regions with a disproportionately high frequency of tornadoes due to atmospheric conditions that persist for long stretches of the year.
With an average of 140 tornadoes annually, Texas is the most tornado-prone state in the U.S., followed by Kansas with 80 and Florida with 59, according to National Oceanic and Atmospheric Administration data.
Top five states with the most tornadoes
Texas - 140
Kansas - 80
Florida - 59
Oklahoma - 56
Nebraska - 54
Bottom five states with the least tornadoes
Alaska - 0
Hawaii - 0
Rhode Island - 0
Delaware - 1
Idaho - 1
What best describes the role of molecular oxygen (O2) in cellular respiration? A. It is accepts electrons when reacting to form water. B. It combines with carbon and hydrogen to form glucose. OC. It is released when water breaks apart. D. It is released when glucose breaks apart. OE. It reacts to form carbon dioxide and water.
Answer:
D. It is released when glucose breaks apart.
Explanation:
Tortoises found on the Galapagos Islands can have varied phenotypes. One of the variations in the phenotypes is with regard to
their shells. They can have a domed shell with a hood above the head. The shells without domes lack the hood above the head,
such that the tortoise's neck is always pointing downward. A group of evolutionary biologists studied the tortoise population for
generations on these islands. The study coincided with a severe drought in the area that lasted many years. The data for the
changes in tortoise shell shape is shown here. Evaluate the data and select the statement that is best supported by this data.
Answer: B:The drought decreased the grass and vegetation on the ground, leaving only vegetation on shrubs and trees above the ground. Natural selection selected for the tortoises with the domed shells and hoods.
Explanation:
Answer: b
Explanation:
Calculate the Simpson’s diversity index using the information below.
A 3 column table with 3 rows. Column 1 is labeled Species with entries American bullfrog, Pool frog, Common toad. Column 2 is labeled Pond 1 with entries 300, 335, 365. Column 3 is labeled Pond 2 with entries 20, 49, 931.
What is the Simpson’s diversity index for pond 1? Round to the hundredths place.
Answer:
0.67
Explanation:
Got it right on edge
Answer:
the answer is 0.66
Explanation:
What influences other than humans affect genetic drift in populations?
Answer:
Every population experiences genetic drift, but small populations feel its effects more strongly. Genetic drift does not take into account an allele's adaptive value to a population, and it may result in loss of a beneficial allele or fixation (rise to 100% frequency) of a harmful allele in a population.
Explanation:
Two-Part Question: Which of the following
isotopes is best suited to determining the age of a Coelophysis fossil AND does any isotope follow
the relationship described in the graph above (yes -or- no)?
(A) carbon-14 (yes)
(B) potassium-40 (yes)
(C) carbon-14 (no)
(D) potassium-40 (no)
PLEASE HELP ME TIMED QUIZ
Which of the following is not a factor in determining population size?
a.
the food supply
b.
birth rate
c.
available niches
d.
detritivore activity
Please select the best answer from the choices provided
A
B
C
D
Answer:
Detritivore activity is the correct answer!
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Answer:
D
Explanation:
Help plsssss asapppppppp
1.What we call the maintenances of constant internal environment of organisms? __________________________
2. Animals which control their body temperature at constant state regardless the changes of external temperature are known as ______________
3. What is the organ in our body which is used as an excretory organ and also used as an organ of osmoregulation?
________________
4. What is the part of the kidney from which urine is taken through the ureter?
_____________________
5. The structural and functional units of the kidney is _______________________.
Answer:
1. homeostasis.
2.Endotherm (warm-blooded animals).
3.kidneys
4.renal pelvis
5.nephron.
Disturbances in memory, consciousness, or identity are symptoms of:
A. affective disorders.
B. anxiety disorders.
C. dissociative disorders.
D. somatoform disorders.
Disturbances in memory, consciousness, or identity are symptoms of dissociative disorders. Thus, option C is correct.
What is wellness?The term wellness is defined as the characteristic or quality of being in good and finer health, mental, as well as social well being. Wellness is basically being in bestest physical and mental as well as social health.There are several types of wellness which includes spiritual wellness in which people feel to sacrifice for the love of the nation, and for others too.
Emotional wellness is the main type of wellness that applies to awareing and accepting the reaction of people. Physical wellness is the type of wellness in which you are physically fit and healthy and free from diseases. Multiple disorders has been includes the affective disorders, anxiety disorders, dissociative disorders, and somatoform disorders are found in many people and these leads to serious health issues.
Therefore, Disturbances in memory, consciousness, or identity are symptoms of dissociative disorders. Thus, option C is correct.
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Can anyone help me out here? This is the final question I have to do, and it is really hard and it is due at 5:00!
Answer:
number 1 is the sun and number 2 is 98.8
Explanation:
1: Can The environment determines all physical features on plants?
2: Can The environment can affect physical features on plants?
No links!!!
Answer: When said that he was the one
Explanation: the first sentence is the nice loot
PLEASE ANSWER I NEED HELP
Answer:
this would be B
Explanation:
a oceanic crust is denser than a continental crust
2. Which of the following is not used to study plate tectonics:
A) paleomagnetism
B) earthquake waves
C) sand dunes
D) fossils
Answer:
c) sand dunes
4. A woman with defective tooth enamel (autosomal recessive) and normal color vision, (X-linked) who had a color blind father with normal tooth enamel and a mother with normal vision and defective tooth enamel, marries a color blind first cousin with normal tooth enamel who had a father with defective tooth enamel. What is the probability of their having a child with normal tooth enamel and color blindness
Answer:
The probability of their having a child with normal tooth enamel and color blindness is 3/8 or 0.375
Explanation:
Let the alleles for normal and defective tooth enamel be T and t respectively.
Color blindness is on the X-Chromosome. Let the allele normal vision and colour blindness be Xn and Xc respectively.
The woman had a colour blind father (XcY) and a normal vision mother, so her allelic pair for vision will be XnXc.
Her father had normal tooth enamel while her mother had a defective tooth enamel, therefore, she will have the allelic pair, Tt.
Her genotype for vision and tooth enamel will be XnXcTt.
Her husband who is color blind with normal tooth enamel had a father with defective tooth enamel, tt. Therefore, her husband's genotype for vision and tooth enamel will be XcYTt.
From the dihybrid cross of XnXcTt and XcYTt, the following offspring are obtained:
XnXcTT, XnXcTt, XnYTT, XnYTt
XnXcTt, XnXctt, XnYTt, XnYtt
XcXcTT, XcXcTt, XcYTT, XcYTt
XcXcTt, XcXctt, XcYTt, XcYtt
From the results of the cross, a child with normal tooth enamel and color blindness will have the following genotypes: XcXcTT, XcXcTt, XcYTT, XcYTt, XcXcTt, XcYTt.
Probability of their having a child with normal tooth enamel and color blindness = 6/16 = 3/8 or 0.375
A fossil of an extinct dinosaur is found, and the anatomy of the fossil shows similarities to that of a bird.
What possibly explains these similarities?
A. This is purely chance and isn't significant.
B. The extinct dinosaur and modern bird share a common ancestor.
C. All dinosaurs evolved into birds and that's why there aren't any dinosaurs alive today.
D. Dinosaurs choose to fly, and evolved into birds to escape predation and capture food.
Answer:
B sounds like a sensible choice
Explanation:
The extinct dinosaur and modern bird share a common ancestor. So the correct option is B.
What are evolutionary relationships?
Systematics, taxonomy, phylogenetics, and evolution are the four approaches used to investigate evolutionary connections. The branch of science known as systematics is concerned with classifying species and figuring out their relationships. It has two primary branches that may be separated:
Organisms are classified, given names, and grouped in taxonomy. A population, species, genus, or higher-level grouping like a family, order, class, phylum, kingdom, or domain can all be considered as a group or taxon. The word taxon is pluralized as taxa. The determination of evolutionary links or patterns of descent of species is via the study of phylogenetics.
The species of living things that exist now are all descendants of earlier ones. This is the result of evolution or merely time-related change. Branching evolutionary trees can be used to illustrate the evolutionary links between ancestors and their offspring. An evolutionary tree shows which ancestors gave rise to which descendants, much like your family tree does.
Therefore the correct option is B.
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Which number label represents the nucleus? 6 5 3 2
Answer:
The nucleus would be #6
Explanation:
Answer:
Its 6
Explanation:
6 is the nucleus, 5 is the nucleolus
What is the total amount of carbon removed from the atmosphere each year by the ocean and land plants, as shown by the arrows? (from carbon cycle gizmo)
Answer:
Either carbon got here by diffusing from the atmosphere, by decomposing marine life, or from circulating water from the deep ocean.
The ocean absorbs more carbon dioxide from the atmosphere than the land does.
The surface ocean takes in approximately 90 Gigatons of carbon per year.
Your welcome!
Explanation:
Need help!!! asap due in a hour
PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
Answer:
d
Explanation:
Which cause of climate change can cause the Earth to get colder? Explain how.
The tilt in the axis of the Earth is called its obliquity. This angle changes with time, and over about 41 000 years it moves from 22.1 degrees to 24.5 degrees and back again. When the angle increases the summers become warmer and the winters become colder.anation:
what is the strongest known poison that is undetectable completely
Answer:
The strongest known poision that is undectable completely are:
Arsenic,Cyanide, Thallium
Please please please help me FAST
FAST
Answer: Mollusks
Explanation:
I think
Answer:
QUESTION:
Please please please help me FAST FAST
ANSWER:
Squid are members of the class Cephalopoda, subclass Coleoidea. The squid orders Myopsida and Oegopsida are in the superorder Decapodiformes (from the Greek for "ten-legged").
Class: Cephalopoda
Phylum: Mollusca
Subclass: Coleoidea
Superorder: Decapodiformes; Leach, 1817
Explanation:
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what does Ecosystem mean ?
Answer:
ecosystem: all the living and nonliving things interacting in a particular area
Explanation:
When plants that are true breeding for different traits of a
characteristic are crossed, the trait observed in the first generation
is called the
a. dominant trait.
b. recessive trait.
c first-generation trait.
d. second-generation trait.
What are two characteristics of S waves?
Answer:
Speed 1
Explanation:
Sound wave can be described by five characteristics: Wavelength, Amplitude, Time-Period, Frequency and Velocity or Speed. 1.
Plz help me well mark brainliest if you are correct!
Answer is in a photo. I can only upload it to a file hosting service. link below!
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Answer:
C. Ecology.
Explanation:
The scientific study of the distribution and abundance of living organisms.
Explain what is diffusion and osmosis? Why are they Important to the cell? Explain one example of active transport in the cell. Write a paragraph (5-7 sentences).
-if you help I really appreciate you!
Answer:
Diffusion and osmosis are both passive transport processes that act to equalize the concentration of a solution. In diffusion, particles move from an area of higher concentration to one of lower concentration until equilibrium is reached. Significance of Diffusion and Osmosis Both diffusion and osmosis are really important as these ensure the equalization of forces inside cells and also inside an organism as a whole by spreading all the necessary chemicals and nutrients from highly concentrated area to the low concentration area inside an organism. The intake of water in plants is an example of osmosis. Diffusion is observed when a drop of food coloring is added to a glass of water, where eventually, the entire water content becomes colored.
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1 pts
Question 9
Which of these is an example of biomass energy?
O A coal-burning generator.
O A gasoline-burning automobile.
O A wood-burning stove.
O An automobile that operates on fuel cells.
