The history of life on Earth is recorded in _____.
rock fossils
animal behavior
a gene pool
Lamarck's notes
rock fossils history of life
Answer:
Option A
Explanation:
The rock fossils depict the history of life because they consist of several deposits of old age fossil in different layers of rock strata. The layer of rock strata which lies at the bottom of any rock deposits is the oldest layer. By examining this oldest layer one can determine the prevailing atmospheric condition at the time of its formation. Also, examining the remains of fossil can help us to understand the forms of life existing during that time.
In this way all the layer of rock strata can be examined one by one from bottom (oldest) to top (youngest). This shall also allow us to understand the pattern of evolution of biological species with time.
Hence, option A is correct
Elephants exhibit herding behavior. When they travel, the oldest and largest members often travel on the outer edges of the group. Why is this important to the survival of the species
Answer: Elephants have few offsprings, so they need to protect them from predators.
Explanation:
Herd behaviour is a behaviour which is collectively shown by organisms in the group. The organisms move, feed and fight the predator in groups. This is a kind of social behavior shown even by the animals.
Elephants also show this kind of social behavior. They move in herd (flock). The tall and older members move at the edges when the elephants moce in herd. This is to protect the young once in the middle from the attack of predators as the young once are incapable of protecting themselves from predators. Also the elephant mother gives birth to only one offspring at a time. Thus the population may suffer if the offspring is not protected.
The pattern of the pollen grain surface is called:
If destroyed, would result in the greatest loss of species diversity? question 7 options:
a.tropical rain forest
b.tundra
c.grasslands
d.deciduous forests
e.islands
Which of these is a drawback of hydraulic fracturing?
A. Water pollution from acid mine drainage
B. Reduced frequency of earthquakes
C. Coastal damage from oil spills
D. Contamination of groundwater
Answer: D. Contamination of groundwater
Hydraulic fracturing is also called as fracking. It is a drilling process which is used for the excavation of oil and natural gas from the shale rock beneath the earth crust. In this the hydraulic pressure is used by using the chemicals mixed with sand and water. This water is injected forcefully into the rocks. The gas or oil comes out from the gaps created. This process can contaminate the groundwater reservoir.
Answer:
D. Contamination of groundwater
Explanation:
Alcohol is eliminated from the body chemically unchanged in
Alcohol is eliminated from the body through a process called alcohol metabolism, during which the liver breaks it down into carbon dioxide and water. This helps remove alcohol from the bloodstream. The rate at which alcohol is eliminated can vary from person to person.
Explanation:Alcohol is eliminated from the body chemically unchanged through a process called alcohol metabolism. When alcohol is consumed, the liver breaks it down through a series of steps, involving various liver enzymes, to convert it into carbon dioxide and water. This process helps remove alcohol from the bloodstream. The liver metabolizes the majority of the ethanol circulating in the blood, and the rate at which alcohol is removed can vary from person to person.
Alcohol metabolism involves two main processes: oxidation and elimination. In the liver, alcohol dehydrogenase converts ethanol to acetaldehyde, which is further metabolized to acetate by aldehyde dehydrogenase. Acetate is then converted into carbon dioxide and water. This process, occurring primarily in the liver, helps eliminate alcohol from the body.
Which factor would be least likely to contribute to the development of a new species?
The factor that will be least likely to contribute to the development of a new species is plentiful resources within the environment occupied by the species. The correct option is 1.
What is speciation?A new plant or animal species is developed through speciation. When a group within a species separates from other members of its species and develops its own distinct features, speciation has taken place.
Rivers change their courses, mountains rise, continents drift, organisms migrate, and what was once a continuous population is split into two or more smaller populations, according to scientists, who believe that geographic isolation is a common method for the process of speciation to start.
The abundance of resources in the ecosystem the species inhabits will be the factor least likely to aid in the formation of a new species.
Thus, the correct option is 1.
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Your question seems incomplete, the probable complete question is:
Which factor would be least likely to contribute to the development of a new species?
(1) plentiful resources within the environment occupied by the species
(2) increased genetic variation within the species
(3) changes in the environment of the species
(4) the ability of the species to increase its numbers by reproduction
An ecosystem dominated by lichens, mosses, grasses, and woody plants. It is generally found at high latitudes. It is described as having a marshy surface where mosses, lichens, berries and low shrubs grow with mucky soil and permafrost underneath. what is this ?
Answer:
Tundra
Explanation:
Tundra is a type of biome characterized by low temperature and short growth season and generally found at high latitudes. The soil is solid, frozen and known as permafrost. It forms when the temperature is below -5° celsius. Tree roots are not able to penetrate this frozen soil so only shrubs, grasses, moss and lichens can grow here. Hence, tundra climate is hostile to woody vegetation. In summers when the top layer of permafrost melts, it leaves behind marshy and soggy grounds and bogs. There are three types of tundra: arctic, antarctic and alpine.
During the removal of wastes in a cell, the waste products move
A. from the nucleus of the cell to one side of the cytoplasm for storage.
B. from an area of lower concentration to an area of higher concentration.
C. from the cytoplasm of the cell to one side of the nucleus for storage.
D. from an area of higher concentration to an area of lower concentration.,
An organism occupying the 3rd trophic level is best described as a ________.
The membranes of a client who is at 39 weeks' gestation have ruptured spontaneously. examination in the emergency department reveals that her cervix is dilated 4 cm and 75% effaced, and the fetal heart rate is 136 beats/min. she and her partner are admitted to the birthing unit. what is the nurse's primary intervention upon the client's arrival to the unit?
Administer oxygen at 8 to 10 liters by mask
Oxygen moving through the plasma membrane down its concentration gradient is an example of
HELP FAST PLEASE MEDAL AND FAN!!!!!!!!!!!!!
1. What is the relationship between biotic and abiotic factors?
2. How did each change to the land affect the fish in the pond?
3. What can happen to an animal species if it cannot adapt to changes taking place in its habitat?
4. How would the ecosystem’s carrying capacity for this species change in this case?
5. Why are biologists concerned about ecosystem disruption?
6. If you were conducting this experiment in the “real” world, what could be some possible sources of error in the experiment?,
Latoria is horseback riding when she falls and hits her head. after the accident, she has difficulty performing finely coordinated movements. latoria has most likely damaged her ____.
a. medulla oblongata
b. reticular formation
c. cerebellum
d. locus coeruleus
Final answer:
Latoria has most likely damaged her cerebellum, which is responsible for balance, coordination, movement, and motor skills. The correct answer is option C, "cerebellum."
Explanation:
Latoria is horseback riding when she falls and hits her head, and afterward has difficulty performing finely coordinated movements. Given these symptoms, Latoria has most likely damaged her cerebellum. The cerebellum is the part of the brain responsible for controlling balance, coordination, movement, and motor skills. It receives messages from muscles, tendons, joints, and structures in our ear to manage these functions. The cerebellum can make necessary changes to motor commands, as seen when a person adapts their walking movement in water. When the cerebellum does not work properly due to damage or the effects of alcohol, coordination and balance are significantly impaired.
1. When does the autumnal equinox occur in the Southern Hemisphere? (1 point)June 21
March 21
September 21
December 21,
Which of the following statements is true concerning the National Weather Service's ability to predict aerial flooding?
A. They can give good advance warning of how high flood waters will rise, but NOT when and where floods will occur.
B. They CANNOT give good advance warning of when and where floods will occur, or how high flood waters will rise.
C. They can give good advance warning of when and where floods will occur and how high flood waters will rise.
D. They can give good advance warning of when and where floods will occur, but NOT how high flood waters will rise.
How can so many different substances and molecules be created from just over 100 different elements?
In photosynthesis, the chemiosmotic production of atp question 37 options:
a.is a result of the oxidation of glucose.
b.is done by the calvin cycle.
c.requires oxygen.
d.is similar to the production of atp in mitochondria.
Chemiosmosis is the process used to generate ATP during glucose catabolism and in photosynthesis. It involves the movement of protons across a membrane to drive the synthesis of ATP. The process is similar in both mitochondria and photosynthesis.
Explanation:Chemiosmosis is the process used to generate 90% of the ATP made during glucose catabolism. It is also used in the light reactions of photosynthesis to convert sunlight energy into ATP, a process called photophosphorylation. The production of ATP through chemiosmosis in photosynthesis is similar to the production of ATP in mitochondria. In both cases, ATP is generated through the movement of protons across a membrane and their subsequent flow back, driving the synthesis of ATP.
What section of the large intestine is associated with the liver?
Answer:
The small intestines
Explanation:
Process by which radiation from a planets atmosphere warms the planets surface to a temperature above what is would be without its atmosphere
Process by which radiation from a planets atmosphere warms the planets surface to a temperature is greenhouse effect.
What is greenhouse effect?The greenhouse effect is a process that occurs when energy from a planet's host star goes through the planet's atmosphere and heats the planet's surface.
The greenhouse effect is a process that occurs when gases in Earth's atmosphere trap the Sun's heat. This process makes Earth much warmer than it would be without an atmosphere.
The greenhouse effect is the way in which heat is trapped close to Earth's surface by “greenhouse gases.” These heat-trapping gases can be thought of as a blanket wrapped around Earth, keeping the planet toastier than it would be without them.
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The greenhouse effect is the process where a planet's atmosphere warps surface temperature by trapping infrared radiation through greenhouse gases, leading to a warmer planet than it would be without such an atmosphere.
The process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere is known as the greenhouse effect. This warming occurs because certain gases in the atmosphere, called greenhouse gases, are capable of trapping infrared radiation and reradiating some of it back to the planet's surface, thus raising the temperature. Earth's natural greenhouse effect, which is primarily due to water vapor and carbon dioxide, increases the average surface temperature significantly. Planets like Mars, with a very thin atmosphere, experience less greenhouse warming, while Venus, with its dense carbon dioxide atmosphere, experiences extreme greenhouse warming. Understanding the balance between incoming solar energy and the heat-trapping properties of greenhouse gases is crucial for determining the surface temperature of a planet. The Earth retains enough of this reradiated heat to prevent the oceans from freezing over, while Mars, which may have had a thicker atmosphere in the past, remains colder in its current state. The enhanced greenhouse effect due to human activities, such as the burning of fossil fuels, has become a significant concern because it is linked to global warming and climate change.
Deduce how two genes for the different traits that are on the the same chromosomes can fail to be inherited together
How is the median defined if the number of observations is even?
a. the average of the two middle observations
b. the difference between the two middle observations
c. the most frequent observation
d. the difference between the highest and smallest observation?
What event triggered the main eruption of mount st. helens may 1980? multiple choice melting snow caused a huge steam eruption. magma encountered groundwater and exploded. a landslide removed rocks and released pressure on the magma. all of these?
A normal human cell containing 22 autosomes and a y chromosome is a(n):
During the cell cycle, specifically G1 interphase, a cell must reach a sufficient size and produce enough ATP in order to A) undergo mitosis. B) undergo cytokinesis. C) produce 2 daughter cells. Eliminate D) replicate its chromosomes.
Answer: Replicate its chromosomes
Explanation:
The cell in the body goes through the cell cycle regulation. There are various stages of cell cycle regulation.
Out of those stages one is G1 phase at the end of which the cell is prepared for the synthesis phase.
The cell gets supplied with proteins, increases in the number of organelles and grows in size.
This occurs so that in the next stage the cells can replicate its chromosomes and new cells are formed.
What are microscopic blood vessels that connect arteries and veins?
What feature makes water a polar molecule? A. A water molecule is negatively charged. B.The middle of the water molecule contains opposing charges. C.The ends of the water molecule have opposite electrical charges. D.A water molecule is positively charged.
The ends of the water molecule have opposite electrical charges.
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The ends of the water molecule have opposite electrical charges...
The best way to reduce our unnecessary waste of energy is to improve _____.
2. True or false? The Atlantic Ocean is the biggest ocean on Earth.
False!
The Pacific Ocean is the biggest ocean on Earth. The Pacific Ocean is as big as all the other oceans put together.
Injuries and deaths from motorcycle collisions are primarily from
the size of the bike makes it a lot harder to see and due to there being little to no protection
Motorcycle crash injuries and fatalities are mostly caused by the riders' lack of protection and susceptibility when compared to the occupants of enclosed vehicles.
Thus, riders on motorcycles have little physical protection, making them vulnerable to direct impact and even ejection following a crash. The possibility of suffering serious injuries rises in the absence of safety equipment like seat belts, airbags, and a protective vehicle frame.
The visibility of motorbikes on the road also makes accidents with other cars more likely. Motorcycles' rapid speeds can play a role in collisions brought on by driving too fast, being careless, or losing control. Motorcycle incidents are more likely to cause significant injuries and fatalities.
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