Answer:
a
Explanation:
because i have a fish tank and once we got my algee tested and it cape back toxic
Answer:
A
Explanation:
Some release algal toxins that can be harmful to aquatic and human life.
Why is the electron transport chain an important step in aerobic respiration?
An electron transport chain (ETC) is a collection of protein complexes and other molecules that transfer electrons from electron donors to electron acceptors via redox reactions (both reduction and oxidation occur at the same time) and couple this electron transfer with proton (H+ ion) transfer across a membrane. The electron transport chain contains many membrane-bound enzymes.
What did the Yosemite Grant of 1864 accomplish?
Answer:
Established Yosemite Valley and Mariposa Grove as protected
Explanation:
President Abraham Lincoln signed a bill establishing Yosemite Valley and Mariposa Grove as protected wilderness areas. It was the first time in U.S. history that land was designated for public use and preservation, and is viewed by many as the birth of the national parks system.
the apparent motions of the oun and otner stars
across the night sky?
• A. The rotation of the Moon
• B. The rotations of the planets
• C. The rotation of Earth
• D. The rotations of the Sun and other stars
In a healthy population, there should be only young members represented.
A. True
B. False
Answer:
B: False
Explanation:
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The appearances of this insect population are most likely because of
A. genetic disease
B. environmental change
C. mutation
D. overpopulation
I'm stuck between environmental change and mutation, but inclined to say environmental change.
Answer:
b
Explanation:
your answer b is good and smart
How do fossils help the support the theory of evolution
Answer:
Fossils of the simplest organisms are found in the oldest rocks, and fossils of more complex organisms in the newest rocks. This supports Darwin's theory of evolution, which states that simple life forms gradually evolved into more complex ones. Evidence for early forms of life comes from fossils.
What does biodegradability mean?
O Biologically derived
O Able to break down over time
O Able to be recycled
O Genetically engineered in a laboratory
a
Biodegradability means being able to break down over time. Hope this helps.
Why are two children born to the same parents (not identical twins) unlikely to have the same genetic makeup?
Multiple Choice
Crossing-over recombines portions of sister chromatids.
Fertilization provides a new pairing of chromosomes.
Each sperm or egg has a random assortment of chromosomes, half from each pair.
Chromosomes align themselves independently during meiosis I.
О
All of the answer choices lead to genetic differences among siblings.
Answer:
E. All of the answer choices lead to genetic differences among siblings.
Explanation:
They all support the
The diagram below shows a cross section of a plant leaf. How does the structure marked X
contribute to the survival of the plant?
Answer:
The diagram below shows a cross section of a plant leaf. How does the structure marked X contribute to the survival of the plant? It allows the intake of gases necessary for photosynth
Plants may control the quantity of water and solutes they contain by using guard cells, which use osmotic pressure to open and close stomata. Thus, option A is correct.
What is the major function of guard cell in photosynthesis?Guard cells adjust the efficiency of leaf gas exchange in response to shifting environmental factors, and changes in atmospheric CO2 concentration, light intensity, humidity, and the drought hormone abscisic acid regulate their turgor.
Stomata, which are pores in the plant epidermis, serve as passageways connecting the intercellular gas spaces to the outside world.
Each stomatal hole is surrounded by two guard cells, and variations in the turgor pressure of the guard cells control the pore aperture size.
Therefore, it allows the intake of gases necessary for photosynthesis.
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During the day, an area of high / low air pressure forms over water and a sea / land breeze occurs
Answer:
Explanation:
The specific heat of water is more than that of sand, thus air above land becomes hot quickly and rises up. The cold air above water then move towards land. This is called sea breeze.
A high air pressure area forms on the water during the day, resulting in the sea breeze. The sea breeze is when the wind flows from the sea towards the land during the day.
What is a sea breeze?
During this time, the earth receives sunlight, which raises the temperature of the atmosphere. Between the sea and the land, the land gets hotter in less time than the water by the sun's light, and this is because the water has a high heat capacity.
The water needs a lot of energy to raise the temperature, and this is due to the water's high specific heat, but in comparison to water, the land has a low specific heat, so it gets warmer quickly. As a result, the air present on the land gets lighter and goes up. As a result, cooler air flows from the sea to the land, causing the sea breeze.
As a result, during the day, a high air pressure area forms over the water, resulting in a sea breeze.
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A 5 liter container of crude oil spills in the ocean. It has a mass of 4.10kg. What is its density
Answer:
50/41 L/kg
Explanation:
d=m/v
so d=5/4.10 or 50/41 L/kg
Tar balls found on beaches are
A. residue from oil spills
B. a natural result of upwellings
C. evidence of agricultural runoff
D. an indication of pollutants leaving an ecosystem
(ABCD) Tar balls found on beaches are:
residue from oil spillsa natural result of upwellingsevidence of agricultural runoffan indication of pollutants leaving an ecosystem.what are Tar balls?Tar balls, the tiny, dark-colored oil particles that can occasionally adhere to your feet when you visit the beach, are frequently left over from oil spills, but they can also be created by natural seeps, which are locations where oil slowly leaks from the earth's surface above some petroleum reservoirs.
Where does tar come from naturally?Tar is a thick, oily, inky liquid that is produced from wood, coal, animal bones, and other organic materials. Destructive distillation, which involves subjecting the components to high heat in the absence of air, is the method used to create it.
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An agricultural manager position
requires all of the following
EXCEPT which one?
A. Experience in active seasonal farming
B. Classroom knowledge on agricultural topics
C. The ability to understand government grant
programs
D. Success and wealth in business and
investments
Answer:
D. Success and wealth in buisness and investments.
Explanation:
rabbits
green plants
The amount of energy at each trophic level in an ecosystem decreases as it moves through the ecosystem. Typically, only
the energy at one trophic level is transferred to the next level. The remaining energy is lost through metabolic processes
Suppose that, in the ecosystem modeled above, 150,000 kcal (kilocalories) of energy are contained within green plants. A
amount of energy transferred from one trophic level to the next is exactly 10 percent, determine the following amounts
ecosystem.
kcal of energy will be transferred from green plants to rabbits.
kcal of energy will be transferred from rabbits to weasels.
kcal of energy will be transferred from weasels to eagles.
Reset
Next
Answer:
a. 15000
b. 1500
c. 150
Explanation:
Each organism passes on only 10% of their energy to the next one.
What is the name of the project that had the goal of sequencing all of the bases that make up human DNA?
(A) The Human Genetic Collaboration
(B) The Human Genome Project
(C) The Word Human Study Project
(D) The Genetic Study of Humans
Answer: (B) the human genome project
Explanation: took the test
Albinism is an example of a/an
A. gene
B. mutation
C. evolution
D. adaptation
Answer:
A. geneExplanation:
PLS MARK BRAINLIESTwhat is the importance of reducing sugars and non reducing sugars
The first Western society known to sail across oceans is
A. the Huns
B. the Athenians
C. the Phoenicians
D. the Macedonians
The first Western society known to sail across oceans is the Huns which is denoted as option A.
What is Sail?This is defined as a journey by boat or ship usually on water bodies such as ocean etc.
The Huns were the earliest nomadic people who lived in Central Asia, the Caucasus, and Eastern Europe and were the first western society to sail across oceans.
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Answer:
the Phoenicians
Explanation:
What is the most popular drug in the United States
A ______ or cave is a natural underground space large enough for a human to enter. These openings form naturally by the weathering of rock and can extend deep underground.
A) Cavern
B) valley
C) canyon
D) sink hole
Answer:
Cavern is the answer
option A
Answer:
A) Cavern
Explanation:
A cavern is essentially the same thing as a cave, but are typically large and deep and formed by the weathering of the rocks around it.
Select the correct answer from each drop-down menu.
Soil is a[ ]
resource that can be used in a sustainable manner. Fertility of soil can be sustained by protecting topsoil from[. ]
and contamination. Because soil fertility is replenished by decomposition of organisms, it is necessary to ensure that
the natural life cycle of plants and wild animals is not disrupted. That is why [. ]
is an effective measure against land
degradation.
1. Non-renewable, renewable
2. Ground water, erosion,vegetation
3. Lumbering, reforestation, slash and burn
Answer:
2
Explanation:
Erosion is when the soil that is on the top of the land gets washed away by moving water. Fertile soil can help in preventing erosion because there will be more plants on fertile soil. When something like grass or any plant grows, the roots will hold the soil together more firmly. Vegetation is an effective measure against land degradation.
Answer:
Soil is a renewable resource that can be used in a sustainable manner. Fertility of soil can be sustained by protecting topsoil from erosion and contamination. Because soil fertility is replenished by decomposition of organisms, it is necessary to ensure that the natural life cycle of plants and wild animals is not disrupted. That is why reforestation is an effective measure against land degradation.
Explanation:
Plato
Which statement correctly represents a mineral? a. any substance which develops in the ground any substance which develops in the ground. b. an element which is made into an object an element which is made into an object. c. any naturally forming substance made from one element any naturally forming substance made from one element. d. any chemical substance which forms naturally in the earth
Any chemical substance which forms naturally in the earth is called a mineral.
What is mineral?A chemical compound having a specific crystal structure that occurs naturally in pure form or formed naturally in the earth is known as mineral.
So we can conclude that any chemical substance which forms naturally in the earth is called a mineral.
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Earth’s species have been adapting for over 4 billion years.
A. True
B. False
Answer:
A.true
Explanation:
"""During their 150 million year existence, animals changed drastically in size, body, shape, and flying ability. a modification of an organism or its parts that makes it more fit for existence."""
Answer:
Hi, I’m here to help you!➡ False.
Explanation:
Species did not even exist because over 4 billion years ago, asteroids, water molecules, and major parts of Earth's crust formed then.
What would be the most likely result of a low concentration of sugars and ions in the cell’s vacuole?
The plant would oof.
The plant would stop photosynthesis.
The plant would stay rigid.
The plant would wilt.
Answer: BБББББ
Explanation:
photosynthesis
Coyotes are opportunistic predators that are found throughout most of North America. They typically feed on small mammals, insects, and fruits and vegetables. They are known for their dietary adaptability. The best description of their role in the food web would be.
Answer:
omnivore
Explanation:
they eat both plants and animals/insects.
What is hibernation ?
Explanation:
state of greatly reduced metabolic activity and lowered body temperature.
it's also called winter sleep
Which tissue in animals can be compared to the Vascular Tissue of plants? Why?
Answer:blood and lymph
Explanation:The vascular tissue in animals comprises of blood and lymph, while that in plants includes xylem and phloem. Blood is a fluid, while xylem and phloem are solid and tubular conducting tissues.
In Texas, paddlefish are
O stocked in the Pecos River
O a sport fish
O an endangered species
O all of the above
Answer:
The answer is an endangered species.
Explanation:
Paddlefish are now listed as a Texas threatened species and it is illegal to catch, kill, or harm a paddlefish in the state’s waters.
1.3 Explain how a lack of responsible citizenship can lead to further cases of human rights violations within a community. (1x 2) (2) [Sub-total: 12]
If there is a lack of responsible citizenship, there will be no one to safeguard the human rights protection which will lead to violations within the community.
What is responsible citizenship?Responsible citizenship is a critical component of a country's development of identity and civic awareness, which can lead to political, social, and economic stability.
Thus, If there is a lack of responsible citizenship, there will be no one to safeguard the human rights protection.
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What cellular process occurs that causes
the flavoring in foods like sauerkraut, soy
sauce, and some dairy products?
A. photosynthesis
B. cellular
respiration
C. fermentation
Explanation:
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