Answer:
ecosystem
Explanation:
What happens to the cells of a person who has cancer?
Explanation:
Cancer happens when cells that are not normal grow and spread very fast. Normal body cells grow and divide and know to stop growing. Over time, they also die. Unlike these normal cells, cancer cells just continue to grow and divide out of control and don't die when they're supposed to.
Cancer cells continue to grow and divide out of control and don't die when they're supposed to.
3. Synthesize in your own words, explain why scientists believe that threats to amphibians present a warning about a number of environmental threats to Earth's biodiversity Refer to the Case Study.
Explanation:
Scientists give three reasons. First, amphibians are sensitive biological indicators of changes in environmental conditions such as habitat loss, air and water pollution, ultraviolet (UV) radiation, and climate change.Amphibians are sensitive biological indicators of environmental circumstances such as habitat loss, pollution of the air and water, ultraviolet (UV) radiation, and temperature change.
What is biodiversity?The variety and variability of life on Earth is referred to as biodiversity or biological diversity. A measure of variation at the genetic, species, and ecosystem levels is called biodiversity.
Biodiversity refers to the variety of all the diverse species of organisms that dwell on our planet, including the plants, animals, insects, and microorganisms.
Each of these things exists in a delicate balance and coexists with the others in ecosystems that nourish and sustain life on earth.
Amphibians are sensitive biological markers of changes in environmental conditions like temperature, UV radiation, habitat loss, and air and water pollution.
Thus, scientists believe that threats to amphibians present a warning about a number of environmental threats to Earth's biodiversity.
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Inherited traits are:
A. Dependent on diet
B. Acquired during an organism's life
C. Free of mutations
D. Passed on from parent to offspring
Why don't negative mutations usually increase in frequency in populations?
Answer:
Within a population, each individual mutation is extremely rare when it first occurs; often there is just one copy of it in the gene pool of an entire species. But huge numbers of mutations may occur every generation in the species as a whole.
Works Cited:
Oct 29, 2007
Https://www.scientificamerican.com
Explanation:
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Someone help me plsssss
Answer:
C part is the correct answer
Compared to ALL of the other planets in our solar system, how would you describe Jupiter? A) the biggest planet B) about the same size as Earth C) the planet closest to the Earth D) the planet farthest from the Sun
Answer:
option A
Explanation:
the biggest planet
Answer:
A) the biggest planet in our solar system.
2. How do your respiratory and circulatory systems attempt to maintain homeostasis during exercise?
A. Your body produces more red blood cells to help provide energy to cells.
B. Your lungs produce more oxygen which is then delivered to the cells through the blood.
C. You experience an increase in blood flow which provides nutrients to cells to increase energy and
remove wastes.
D. You experience an increase in breathing rate to obtain more oxygen which is delivered to cells
through the bloodstream.
MULTIPLE-SELECT QUESTION: CHOOSE TWO
CORRECT ANSWERS
STRUCTURES AND FUNCTIONS
A. There is not enough information to build the cladogram
B. The frog is placed in Position A on the cladogram above.
C. The pig is placed in Position B on the cladogram above.
D. The gorilla is placed in Position D on the cladogram above.
Answer:
B and D
Explanation:
What are 2 things that two male polar bears might compete for in an ecosystem?
Answer:
Food and habitat resources
Explanation:
Ecosystems are communities that animals and organisms fight and survive in.
Answer:
bro ide man i can't even tell you man iExplanation:
In the chart above, which of the sequences describes a negative consequence of deforestation?
A. Sequence A
B. Sequence B
C. Sequence C
D. Sequence D
Answer:
C. Sequence C
Explanation:
Deforestation means cutting down of trees so it will lead to soil erosion and flooding
Answer:
C
Explanation:
There are 300 falcons living in a forest at the beginning of 2013. Every year, there are 50 falcons born and 30 falcons that die.
What is the the population growth rate?
Answer:
The growth rate is 20+ Falcons are born per year.
Explanation:
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Answer:
Population in the world is currently (2020) growing at a rate of around 1.05% per year (down from 1.08% in 2019, 1.10% in 2018, and 1.12% in 2017). The current average population increase is estimated at 81 million people per year. Annual growth rate reached its peak in the late 1960s, when it was at around 2%.
Explanation:
how many grams of nitrogen-16 will be left from a 24 g sample after 17.2 seconds of its half-life is 4.3 seconds
Answer:
Explanation:
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Please match the correct term to it definition
Answer:
Explanation:
1: Is symbiosis
2: is eutrophication
3: Predation
4: Trophic efficiency
5: Greenhouse effect
6: Nutrient cycling
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Carbon cycles through the biosphere in all of the following processes EXCEPT
a. photosynthesis
b. burning of fossil fuels
c. transpiration
d. decomposition of plants and animals
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Based on this graph
What is the approximate age of the dust sample?
A. Between 4 and 5 billion years old
B. Between 6 and 7 billion
years old
C. Between 24 and 25 years old
D. Between 32 and 33 billion years old
Answer:
B
Explanation:
Answer:
b
Explanation:
Which of the layers of the epidermis is found only in thick skin?
stratum basale
stratum spinosum
stratum corneum
stratum lucidum
Answer:
stratum spinosum
Explanation:
The stratum spinosum is the thickest layer of the epidermis which lies just above the basal layer. The stratum spinosum consists of basal cells that have matured into squamous cells, also known as keratinocytes.
When tulips bloom, they are attempting to pollinate using the process of meiosis which part of tulip is related to meiosis? Why do tulips need to under go meiosis?
Answer:
The correct answer is - pistil and stamen.
Explanation:
Meiosis is the type of cell division that takes place only to produce gametes that are megaspore and microspore, in sex cells of the flowering plant. In tulip and other similar flowering plants have ovary at the base of the pistil that contains and produced megaspore (female spores) by meiosis.
Similarly, anthers in the stamen of the tulip flower produce male spores called microspores and contain. Meiosis is essential in sexual reproduction to ensure that each cell has the correct number of chromosomes and responsible for recombination.
During pollination Tulip under meiosis in other to produce the required gametes needed for sexual reproduction. The parts of the Tulip that contains the megaspore and microspore gametes are :
Pistil : The ovary that produces and stores the female spores via meiosis is located at the base Stamen : The anthers which produces the male spores via meiosis is located at the stamen.Also Tulips undergo meiosis to ensure that the cells have the accurate number of chromosomes that is to be used for recombination.
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Which statement regarding polymers is TRUE?
1. Polymers have only a few uses.
2. All polymers are made entirely of carbon and hydrogen.
3.Many polymers do not decompose and recycling them can be difficult.
4. Polymers are made by separating crude oil during fractional distillation.
What are antibiotics and why are they useful?
Explanation:
An antibody is a protein produced by the body's immune system when it detects harmful substances, called antigens. Examples of antigens include microorganisms (bacteria, fungi, parasites, and viruses) and chemicals. ... Each type of antibody is unique and defends the body against one specific type of antigen.
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What are the three involved elements in Photosynthesis?
Answer:
Carbon dioxide , water and water
What is the main relationship among archosauria, diapsida, and reptilia clases?
Answer:
Archosauria (the "ruling reptiles") is a major group of diapsids, differentiated from the other diapsids by the presence of single openings in each side of the skull, in front of the eyes (antorbital fenestrae), among other characteristics. This continues the tetrapod trend of the reduction of skull bones by the fusion of multiple bones and the opening of fenestrae in the skull. This helps to lighten the skull, provides more room for muscles and other tissues, and allows more skull flexibility (kinesis) when eating. Other typical archosaurian characteristics include another opening in the lower jaw (the mandibular fenestra), a high narrow skull with a pointed snout, teeth set in sockets (called thecodont tooth implantation), and a modified ankle joint.
Diapsids ("two arches") are a group of amniote tetrapods that developed two holes (temporal fenestra) in each side of their skulls about 300 million years ago during the late Carboniferous period.[1] The diapsids are extremely diverse, and include all crocodilians, lizards, snakes, tuatara, turtles, and birds.[2] Although some diapsids have lost either one hole (lizards), or both holes (snakes and turtles), or have a heavily restructured skull (modern birds), they are still classified as diapsids based on their ancestry. At least 7,925 species of diapsid reptiles[3] exist in environments around the world today (nearly 18,000 when birds are included).
Reptilia, presented as a Class in our classification, includes turtles (Testudines), snakes and lizards (Lepidosauria), crocodiles and their relatives (Crocodilia), and birds (Aves), as well as a number of extinct groups.
Explanation:
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During exhalation the air pressure on the outside of the lungs is (greater than / less than) the air pressure
inside the lungs.
Answer:
greater than
Explanation:
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Compare how ectotherms and endothermic maintain body temperature
Answer: Ectotherms depend on external heat sources. Their body temperature changes with the temperature of the environment. Endotherms generated heat internally to maintain body temperature.
Explanation:
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Answer:
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It is mistakenly believed that the rapid evolutionary changes of punctuated equilibrium are the result of some mechanism of evolution other than natural selection, thus seeming to undermine evolutionary theory. This belief is mistaken because:
Answer: Natural selection can be defined as the differential survival and reproduction of members of the population of a species that have suitable traits to survive in a population of species.
Explanation:
The punctuated changes in the population of species have been found inordinately faster in the geological time scale, but changes per-generation have been relatively slow. Also, the rate of evolution in such a population is also slow. The punctuated changes in the population are because of evolution but the per-generation changes are the outcomes of the natural selection, in which only the beneficial traits are passed from one generation to another.
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In which system of plant do the tissues xylem and phloem work?
In vascular system of plant do the tissues xylem and phloem work
Which air mass would produce warm, humid weather in the summer?
Answer: maritime tropical air mass
Explanation: The oceanic tropical air mass regularly creates a warm, muggy climate in the mid-year. The air mass begins from over the warm water of the jungles and Gulf of Mexico, where warmth and dampness ordinarily move to the air above from the water beneath.
The following quote makes an important distinction between renewable and nonrenewable resources.
It is important that the United States move with all deliberate speed to develop and get into usage alternative fuels that will allow us to end our dependence on foreign oil. —Congressman Virgil Goode
A. What are the renewable resources being referred to in this quote?
B. What is the nonrenewable resource being referred to in this quote?
C. Why might it be important to move from nonrenewable resources to renewable resources?
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Answer:
Hi, there the answer is
C.It is a frameshift mutation that changes many amino acids.
Explanation:
Due to the triplet nature of gene expression by codons, the insertion of the single Adenine nucleotide will disrupt the reading frame of the gene (frameshift mutation), such that it is no longer evenly divisible by three.
Thus, resulting in a completely different translated protein from the original.
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What is the purpose of mitosis for our bodies?
Answer:
Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell? divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells
Explanation: