The answer is 'cooler'. The Cretaceous Period was relatively warm and was experiencing global warming. However, a cooling trend was evident towards the end of the Cretaceous. The Paleocene followed the meteorite impact that resulted in the extinction of most of the dinosaurs. It is thought that dust particles in the atmosphere resulted in cooling during the early Paleocene.
would a 3 nucleotide insertion result in a frameshift?
What is the difference between magma and lava?
a scientist wants to display the number of chirps that were recorded in a one hour period for three different species of song bird what type of visual display should the scientist use
Answer:
bar graph
Explanation:
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which term would be directly related to the science of ecology?
A. genetics
B. population density
C. circulatory system
D. taxonomy
Population Density is directly related to the science of ecology. So, the correct option is (D).
What is Population Density?Population density is defined as the average number of individuals per unit population of area or volume. For example, a population density of 100 red ants living in an area of 100 square meters is 1 ant per square meter.
Ecology attempts to understand the relationship between living organisms such as plants, animals, microorganisms and their environment . Population density refers to the number of individual organisms in a unit area of space.
Population density = Total Population / Area of residence
Thus, Population Density is directly related to the science of ecology. So, the correct option is (D).
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Succession is a process, with each new community paving the way for the next true or false
The correct answer for this question is TRUE
Ecological succession is the process of change in structure of an ecological species by pre-existing community over time. We can say that in ecological succession, each new community is paving a way for new community. The different types of ecological succession exists during different phases of an ecosystem, and depends on how developed that ecosystem is. Succession that begins in new habitat, uninfluenced by pre-existing community is called primary succession whereas succession that follows disruption of a pre-existing community is called secondary succession.
Answer: TRUE!!! Trust me I know I put that as my answer and passed my test!!! Good Luck
Under what climatic conditions does wind transport and erosion primarily take place?
Describe how natural processes can cause some of the water in the ocean to someday fall as rain or snow on the mountains
Final answer:
The water in the ocean can become rain or snow in the mountains through the water cycle, starting with evaporation, followed by condensation into clouds, and falling as precipitation. Snow can remain on mountains and become part of glaciers, and eventually, gravity returns this water via rivers back to the ocean.
Explanation:
The water in the ocean can become part of the precipitation that falls as rain or snow on the mountains through natural processes such as the water cycle. This cycle includes the evaporation of water from the ocean's surface, facilitated by the heat from the Sun. The water vapor rises into the atmosphere and cools, leading to the condensation of water around microscopic particles, forming clouds. Through a process called precipitation, water droplets grow and eventually fall to Earth as rain, snow, sleet, or hail based on the temperature and conditions in the atmosphere.
Some precipitated water falls on mountains where it can stay as snow and may become part of glaciers. Over time, due to sublimation, the process in which a solid changes directly into a gas, some of the water from snow and ice may go directly back into the air. Eventually, gravity guides this water, whether it fell as snow or rain, down mountains to rivers and back to oceans.
What bodies of water erode and move enormous amounts of soil and rock
Why is a symptomless STI just as dangerous as an STI that exhibits symptoms? Explain your answer.
which of the following is an example of a human-caused disturbances to an ecosystem?
A Tsunami destroys a coastal forest and causes flooding.
B- a river is diverted to irrigate farmlands during a drought
C- after a volcanic eruption global average temperatures lower
D- does snow cover of a region grows and shrinks throughout the year
Answer:
Option (B)
Explanation:
A river that is diverted to the irrigating farmland during a drought is an example of the human-caused disturbances to an ecosystem.
An ecosystem refers to a particular community within which the organisms exist and interact with each other. For example, fresh water ecosystem, desert ecosystem and forest ecosystem.
In the given situation, the river channel is disturbed by changing its flow direction. This is caused by the human activity, that changes the course of the river channel to the farmlands during a flood, so that the water can provide nutrient to the soil and prevent the soil from getting eroded.
Thus, by doing this, the river ecosystem gets affected, as a result of which the organisms existing in this ecosystem such as fishes are affected.
Hence, the correct answer is option (B).
A single flowering plant produces pollen with a mutation that causes the pollen tubes to grow to only half their normal length. What will be the most likely long-term effect of this mutation on the local population of this type of plant? (2 points) The pollen tubes will reach the eggs sooner, which will result in seeds from this pollen being produced faster, making the mutation more likely to get passed on. Since the pollen tubes cannot grow long enough to reach the eggs, the mutation will not be passed on and will not affect the plant population. Plants produced from eggs fertilized by this pollen will only grow half as tall as the others, resulting in a population with short and tall plants. Within a few generations the mutation will have spread through the population, making all the pollen tubes shorter.
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A dam being constructed across a river will cut off a large part of the river for native animals. What are the likely outcomes for the populations of the aquatic species and the ecosystem's carrying capacity for the aquatic species?
A.The aquatic species’ populations will increase, and the ecosystem’s carrying capacity will decrease.
B.The aquatic species’ populations will decrease, and the ecosystem’s carrying capacity will increase.
C.The aquatic species’ populations and the ecosystem’s carrying capacity will increase.
D.The aquatic species’ populations and the ecosystem’s carrying capacity will decrease
Answer: B.The aquatic species’ populations will decrease, and the ecosystem’s carrying capacity will increase.
Explanation:
Limiting factor can be define as the factor which is capable of reducing the population of a species. Carrying capacity can be define as the maximum number of the population of a species that a region or ecosystem can support in terms of availability of resources. The construction of a dam is likely to disturb the native habitat of the living species in the river. As it is going to cut the part of river. The construction of a dam is a limiting factor for aquatic animals species. Due to the decrease in the population of native animals the carrying capacity of a region will increase .
Final answer:
Dam construction impacts aquatic species populations and the ecosystem's carrying capacity by decreasing both due to altered river conditions and habitat loss.
Explanation:
The likely outcomes for the populations of aquatic species and the ecosystem's carrying capacity due to dam construction:
The aquatic species' populations will decrease due to altered river conditions, reduced flow, and habitat loss.
The ecosystem's carrying capacity for the aquatic species will decrease as the habitat is cut off, affecting the overall biodiversity and ecosystem health.
Therefore, option B The aquatic species’ populations will decrease, and the ecosystem’s carrying capacity will increase is the most likely outcome for the populations of aquatic species and the ecosystem's carrying capacity.
Sickle cell anemia is known to run in a family. A pedigree chart for this family is shown below
What percentage of the offspring are carriers of the disease but do not have it ?
⦁ A DNA molecule has the bases: A C G T T A. What set of bases will bond in a complementary way during replication?
A strand of DNA having base sequence as ACG TTA. The complementary strand of DNA will be produced with base sequence as TGC AAT. In the double strand DNA nitrogenous bases paired in a specific manner, A (Adenine)always pairs with T (Thymine) with double hydrogen bond or vice-versa and C (Cytosine) pairs with G (guanine) with triple hydrogen bond or vice-versa.
horseshoe crabs are one of the only five living species of arthropods class
A) merostomata
B)chelicerata
C)Arachinda
D) none of the above
Answer:
A. merostomata
Horseshoe crabs are merostomata class
Explanation:
Merostomata is one of the five class of the phylum arthropoda. Horseshoe crabs are not crustaceans. They are the only living representative of a group that flourished successful over 300 million years ago on the earth. They have lived in the coasts of North America and Southeast Asia.
Taxonomy:
PHYLUM: arthropoda
SUBPHYLUM: chelicerata
CLASS: merostomata
ORDERS: xiphosura
FAMILIES: limulidae
Put the protein digestion steps in order of their occurrence during the digestive process
What is a business cycle?
A business cycle is a recurring pattern of expansion and contraction in economic activity over time.
- Phases: The business cycle consists of several distinct phases, including expansion, peak, contraction, and trough.
- Expansion: During the expansion phase, economic activity, such as production, employment, and spending, increases, leading to growth in the economy.
- Peak: The peak marks the highest point of the business cycle, where economic activity reaches its maximum level before starting to decline.
- Contraction: Following the peak, the economy enters a contraction phase characterized by a decline in economic activity, such as falling production, rising unemployment, and reduced spending.
- Trough: The trough represents the lowest point of the business cycle, where economic activity reaches its lowest level before starting to recover.
- Factors: Various factors influence the business cycle, including changes in consumer and business confidence, government policies, technological advancements, and external shocks such as natural disasters or geopolitical events.
- Policy Response: Governments and central banks often implement fiscal and monetary policies to mitigate the effects of economic downturns and promote recovery during economic contractions, aiming to stabilize the business cycle and achieve sustainable economic growth.
What forms white light?
A) Combination of all the wavelengths of ultraviolet light, B) Combination of all the wavelengths of visible light, C) Absorption of electromagnetic rays, D) Absorption of infrared rays
hello option B is correct) Combination of all the wavelengths of visible light.
White light is created when there is a mixture of all the colors of the visible light spectrum. White light is perceived when all the wavelengths of the visible light spectrum strike the eye at the same time.
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Sedimentary rocks are formed when soil, rocks, or the remains of dead organisms undergo layering and compaction over a long period of time. The mass of the sedimentary rock is equal to the mass of the A) the soil and rock parts. B) organic materials in the rock. C) inorganic materials in the rock. D) the original items making the rock. Eliminate
The cell cycle is a spontaneous occurrence where the cell shrinks to less than half its size
True
False
Sarah no longer responds to fear or excitement. What part of the endocrine system is most likely being affected?
A - Adrenal gland
B - Parathyroid gland
C - Pituitary gland
D - Thyroid gland
Answer:
A
Explanation:
what would happen if prey were removed from the food web?
Which of the following does not contribute to soil consistence? a. texture b. temperature c. organic matter d. mineral types Please select the best answer from the choices provided A B C D
Which of these is an interaction in which the host is harmed? Competition Mutualism Predation Parasitism
Parasitism Is the answer I see it in my old notes lol
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Which wave has a disturbance that is parallel to the wave motion?
A) Longitudinal
B) Transverse
C) Surface
D) No wave has a disturbance that is parallel
Longitudinal waves
Explanation;Waves are a transmission of a disturbance from one point to another. Waves may be classified as longitudinal or transverse based on the vibration of particles relative to the wave motion.Longitudinal waves are waves in which the vibration of particles is parallel to the direction of wave motion. While transverse waves are waves in which the vibration of particles is perpendicular to wave motion.Longitudinal waves form regions called compressions where particles are close together and rarefactions where particles are more separated from each other. In a transverse wave regions of maximum displacement known as crests and troughs are formed. What would happen to the population of animal if it’s predator was added to the food web
A) it would increase
B) it would decrease
C) it would stay the same
D) it would fluctuate
Which of the following processes transfers carbon directly from sea organisms to sea water? Diffusion Evaporation Photosynthesis Respiration
The correct answer is diffusion.
Aquatic respiration refers to the procedure whereby an aquatic animal attains oxygen from water. Fish and other aquatic species utilize gills to consume oxygen dissolved in the water and diffuse carbon dioxide out of the bloodstream.
Diffusion is a procedure in which a substance moves from a region of high concentration to the region of low concentration until equilibrium is attained. In the case of aquatic species, blood with a low concentration of oxygen molecules moves through the gills. The concentration of the oxygen molecules in water is greater in comparison to the concentration of oxygen molecules in the gills.
As a consequence, the molecules of oxygen diffuse from water (higher concentration) to a region of lower concentration, that is blood. In the same manner, the molecules of carbon dioxide diffuse from the blood, that is, high concentration to water, that is, low concentration.
According to cell theory _____. all cells reproduce to create new cells all cells are similar in chemical composition and energy conversion all living organisms are composed of cells all of the above
All living organisms are composed of cells.
Answer:
The answer is C. "All living organisms are composed of cells."
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Explanation:
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an amazing attribute of DNA is its ability to replicate. define replication and describe why this ability is so vitally important