Which statement is true about all metals?
amoeba is uni cellular true or false giving brainliest
Answer:
Amoeba is a unicellular organism
Answer:
Amoeba is Unicellular organism
because it consists of single cell. A Unicellular organism is a organism that consists of a single cell. This means all life processes such as reproduction , feeding, digestion and excretion occur in one cell...
Explanation:
So, ANS is True
Hope it helps you
Help! Easy question
Which of these are not true?
a. Combustion is faster process than Respiration.
b. Combustion occurs at a higher temperature than Respiration.
c. In Combustion, energy is released in several steps, whereas in Respiration it is released in a single step.
d. Combustion can occur anywhere but respiration only occurs in living cells.
Thanks in Advance!
Answer:
(c) In combustion, energy is released in several steps, whereas in respiration, it is released in a single step.
Explanation:
Combustion releases energy in a single step in the form of light and heat. Whereas in respiration, energy is released in steps and is stored in the form of ATP.
Hope it is helpful...Carbon Cycle activity part 2
(photos attached)
Which of the following would likely move through the phospholipids of the
cell membrane most easily? *
CO2
Glucose
K+
Starch
Answer:
CO2
Explanation:
Oxygen and CO2 can move through the cell membrane through simple diffusion because they are small molecules.
It's possible that CO2 travels through the lipid bilayer far more quickly than any other molecule. Therefore, option (A) is correct.
What is the structure of cell membrane ?According to the fluid mosaic model, the plasma membrane is a mosaic of components—primarily, phospholipids, cholesterol, and proteins—that move freely and fluidly in the plane of the membrane.
All cells have a cell membrane, also known as a plasma membrane, which separates the interior of the cell from the external environment. A semipermeable lipid bilayer makes up the cell membrane. The movement of materials into and out of the cell is controlled by the cell membrane.
Therefore, small and simple molecules like water, H2O , CO2 can pass through the cell membrane easily as it is partially permeable.
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What are several ways that humans alter the natural habitat?
Answer:
cuting trees, killing animals, and pollution.
Answer:
"Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water."
Explanation:
sources: nationalgeographic
PLZ ANSWER ASAP I NEED HELP will mark brainliest >_
Peter is complaining of stomach pain and constant hunger. Peter’s doctor diagnoses him with a worm infection. Peter feels hungry because the worm is absorbing food from his intestines.
Peter most likely has an infection from a(n)
tapeworm.
leech.
planarian.
marine worm.
Answer:
A) Tapeworm
Explanation:
got it right on edge nuity
Peter is complaining of stomach pain and constant hunger as he was diagnosed with a worm infection.
Peter feels hungry because the tapeworm is absorbing food from his intestine as tapeworm begins to feed off your body's nutrients to grow once it invades the body.How tapeworm infection occurs?Tapeworm infection is caused by ingesting food or water contaminated with tapeworm eggs or larvae.When tapeworm hatches and attaches itself to your intestine, it starts feeding off body's nutrients causing increase in apatite (hunger increases).It grows by reproducing proglottids ( chain looking body part) and the cycle continues.Planaria upon causing infection feeds on blood cells hence can not cause apatite.Leech and marine worm can not invade the body like tapeworm and planaria.To learn more about tapeworm infections:
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Place the following elements in order from MOST to LEAST reactive:
Carbon
Iridium
Helium
Sulfur
Hydrogen
why is the late Cambrian thought of as the period of the greatest evolutionary change in life forms on earth's history?
Answer:
The Cambrian Period marks an important point in the history of life on Earth; it is the time when most of the major groups of animals first appear in the fossil record. This event is sometimes called the "Cambrian Explosion," because of the relatively short time over which this diversity of forms appears.
Will mark Branliest if correct. (I think B, but I am not sure. It doesn't seem to be D.)
What makes mitochondrial DNA useful as a molecular clock? (2 points)
It is only found in select organisms, making it easier to compare relationships between species that have it.
A large portion of the DNA ring is not vital to structure or function, allowing it to accumulate neutral mutations.
Its rate of mutation increases over time as organisms continue to evolve and differentiate from each other.
A slow mutation rate makes it useful for determining evolutionary relationships between ancient species.
Answer:
Mitochondrial DNA is useful as a molecular clock because it displays uniparental inheritance
Which best describes the end result of meiosis?
O A. two diploid cells identical to the parent cell
o B. four haploid cells identical to the parent cell
C. two diploid cells different from the parent cell
D. four haploid cells different from the parent cell
The speed of an object at a particular moment in time is known as the........
A. instantaneous speed
B. instantaneous velocity
C. Speed
D. Velocity
Answer: It would be A. Instananeous speed
Explanation: It is measured in metres per second
All of the organisms in the domain Archaea are
A. prokaryotes
B. eukaryotes
C. autotrophs
D. multicellular
All of the organisms in the domain Archaea are prokaryotes.
Archaea are unicellular organisms with no nuclei, hence are prokaryotes.
Characteristics of Archaea Greek word Archaios means ancient.They are unicellular organisms that resemble bacteria and have some similarity to eukaryotes.Hence a third domain Archaea was introduced by Carl Woese based on ribosomal RNA analysis.They can live in extreme conditions like higher temperature, higher cold regions etc.To learn more about prokaryotes :
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Write a scientific explanation that explains how oxygen and carbon dioxide travel within the seed and the egg.
Carbon dioxide and oxygen travel within the seed and egg to break the energy or food inside the seed or egg. It comprises schematic steps which are responsible for these functions.
What do you mean by Seed?Seed may be defined as the unit of reproduction of a flowering plant, capable of developing into another such plant.
The oxygen enters the seed and gets absorbed by the seed coat. It makes the seed coat wet and soft due to oxygen absorption. This oxygen now combines with energy that is stored inside the seed. The level of carbon dioxide increases when the process of photosynthesis will be initiated.
Therefore, carbon dioxide and oxygen travel within the seed and egg to break the energy or food inside the seed or egg.
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Why are seismic waves considered
mechanical waves?
A. They must travel through a medium, such as
the bedrock of the Earth.
B. They will only travel through empty space.
C. They travel in circles.
D. They do not require a medium.
Answer:
The correct answer is - option A.
Explanation:
The seismic waves are the waves that are the result of an explosion or the breaking of the rock within the earth. In other words, when these explosions or breaking cause an energy transfer within the earth are seismic waves. Seismic waves require a medium to travel and normally it is the earth.
The bedrock of earth is a great example of a medium for traveling these waves that make it a mechanical wave. Earthquake is the result of such waves.
Which component makes each amino acid unique?
Amino group
Carboxyl group
R group
Phosphate group
Answer:
The best answer is R group. An R - group is a chemical group or side chain that is found attached to the central carbon in amino acids
Explanation:
R group
Explanation: thanks to the person above ^
And Magiic Jaaaay for asking the question! remember to stay safe, happy learning.
HELP PLS
Ticks are parasitic insects that feed on blood. Consider a single
population of ticks that divides into two populations. One population
feeds on the blood of mammals that live only in trees. The other
population feeds on the blood of mammals that live only on the ground.
Which observation supports the idea that speciation has occurred?
How Fa
Search fc
The tree population and the ground population of ticks cannot mate
and have offspring.
How mar
Which an
The tree population of ticks feeds more frequently than does the
ground population
Do wild re
What doe
The genes in both the tree population and the ground population of
ticks combine to form a single, large gene pool.
What doe
The ground population of ticks gets eaten less frequently by birds
than the tree population.
Answer:
ask siri 123
Explanation:
i can help
The tree population and the ground population of ticks cannot mate and have offspring indicates speciation has occurred.
What is population?"A population is defined as a group of individuals of the same species living and interbreeding within a given area."What is speciation?"Speciation is the evolutionary process by which populations evolve to become distinct species."The ticks of tree and ground population evolve without interfering with one other. Forms a different species and no mating occurs between them.Hence, the correct answer is: The tree population and the ground population of ticks cannot mate and have offspring.
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Excess exposure to the sun can lead to skin cancer due to mutations in the DNA of your skin cells. Which of the following explains why this type of cancer cannot be inherited by the offspring of someone with skin cancer?
Answer:
The mutation occurred due to the environment
Why don’t we include viruses when we discuss reproduction?
Answer:
Viruses latch onto other cells (host cells) in order to reproduce. They do not reproduce by themselves. Instead, they use another cell to repopulate.
Explanation:
I hope this is correct. ;w;
Bobcats are generally solitary and establish territories of a certain size where they hunt for food. What type of population dispersion would you expect bobcats to have?
Answer:
Uniform dispersion.
Explanation:
The bobcats' population distribution would be a uniform dispersion because they are distributed in an area in a balanced way. That is to say, that there is space between them and that each bobcat establishes its personal space when hunting and for their daily life. As they are solitary animals, they do not live in groups and only associate with other bobcats to reproduce themselves.
Change to hypothesis
What effect does the water temperature have on solution rate?
As the temperature of the water increases so does the solution rate as the atoms gain more energy therefore there will be more frequent collisions.
What would most likely result if more farms were developed along river basins in North Carolina
Answer:
Area of river basins, portion in Western North Carolina River Basins Square Miles French Broad 2,830 Yadkin 1,900 Little Tennessee 1,797 Catawba 1,530 6 more rows ...
Explanation:
hopes this helps D:
Answer:
the answer is an increase in water pollution
If a nucleotide pair were removed from a gene, which of these would most likely be directly affected?
Answer:
every pair in the sequence after that pair would be affected, it might result in a mutation
Hillsdale and Cordera are the same distance from the equator, and both are near the ocean. Is Cordera warmer, colder, or the same temperature as Hillsdale? Explain why as completely as you can.
Answer:
it is expected that Hillsdale and Cordera have nearly similar temperatures.
Explanation:
In the first place, it is important to note that there is an inverse relationship between latitude and temperature: temperatures are typically warmer near the Equator (lower latitudes) and cooler near the poles (higher latitudes). This phenomenon is due to the fact that the angle of solar radiation is smaller at higher latitudes, and thereby less solar radiation is received/absorbed near the poles than at the Equator. Moreover, another important factor that also determines the temperature is altitude: at higher altitudes, the temperature is lower. This phenomenon is due to the fact that at higher altitude air molecules spread out further, and therefore the temperature decreases. In consequence, at the sea level, the temperature is higher than at higher altitudes.
The diagram shows the life cycle of a fern,
What does stage 2 show?A. A gamete-producing fern plant is flat and shaped like a heart.
B. A zygote forms when a sperm fertilizes an egg cell.
C. A mature spore-producing fern plant has fronds and produces
spores
D. A spore grows into a mature gamete-producing plant,
Answer:
the correct answer is D!
A spore grows into a mature gamete-producing plant.
Explanation:
hope this helps :)
A spore grows into a mature gamete producing plant is best describe the life cycle of fern.
What is the life cycle of fern?The life cycle of the fern has two different stages such as sporophyte and gametophyte. The sporophyte stage which releases spores whereas gametophyte stage which releases gametes. Gametophyte plants are haploid whereas sporophyte plants diploid. This type of life cycle is known as alternation of generations.
So we can conclude that a spore grows into a mature gamete producing plant is best describe the life cycle of fern.
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if humans run out of following resources, which resource would be most difficult to replace
Answer:
Petroleum
Explanation:
Like all fossil fuels, petroleum is a nonrenewable energy resource. This means that it is a resource that cannot be replaced as quickly as humans use up existing supplies. Humans face a problem because once petroleum reserves begin to run out, there won't be enough fuel to power all the automobiles in the world.
I need help with 5 science questions :)
Answer:
1. . For example, lake trout are native to the Great Lakes, but are considered to be an invasive species in Yellowstone Lake in Wyoming because they compete with native cutthroat trout for habitat.
2. Japan
3. Kudzu was introduced from Japan to the United States at the Philadelphia Centennial Exposition in 1876 as an ornamental and a forage crop plant. The Civilian Conservation Corps and southern farmers planted kudzu to reduce soil erosion.
4. Kudzu grows out of control quickly, spreading through runners (stems that root at the tip when in contact with moist soil), rhizomes and by vines that root at the nodes to form new plants. Once established, kudzu grows at a rate of one foot per day with mature vines as long as 100 feet.
5. Pythons compete with native wildlife for food, which includes mammals, birds, and other reptiles. Severe mammal declines in Everglades National Park have been linked to Burmese pythons. ... Raccoons and opossums often forage for food near the water's edge, which is a habitat frequented by pythons in search of prey.
Explanation:
hope this help bae
In the laboratory, scientists remove the gene for insulin from human chromosomes. They insert the gene into the DNA of bacteria. This causes the bacteria
to produce human insulin. The insulin is used to treat diabetes in humans. Which of these describe this process?
A. Recombinant DNA
B. Reproductive Cloning
C. Gene Therapy
D. DNA Fingerprinting
Answer:
A. Recombinant DNA
Recombinant DNA is created by a process called genetic recombination. In this process, we insert a exogenous gene to let another organism, a bacteria in this case, produce a protein that can not be produced otherwise
what is the best explanation scientists have been able to come up with for the appearance of Ostrich-like birds in different continents
Answer: B. The distribution of some groups of ostrich like birds may have been influenced by continental drift in what is known as Pangea.
Explanation:
Answer:
B. The distribution of some groups of Ostrich-like birds may have been influenced by continental drift in what is known as Pangea
Explanation:
what are the effects of sunlight on the aquatic life inhabiting amazon river
Answer:
the effects of sunlight on the aquatic life inhabiting the Amazon River. The center of all aquatic life in the Amazon is located in The Amazon Basin, the sun makes sure that all fish and plant life can sustain life.
The sunlight affects the aquatic species that lives in the Amazon River. The Amazon Basin is the epicenter of all aquatic life in the Amazon, where the sun ensures that all fish and plant life may survive.
What is Amazon Basin?The region of South America that the Amazon River and its tributaries drain is known as the Amazon basin. Approximately 6,300,000 km2, or 35.5 percent of South America, is covered by the Amazon river basin.
The Amazon basin not only contains the world's largest remaining tropical rainforest, it also harbours at least 10% of the known biodiversity, including endemic and threatened species of plants and animals, and its river contributes 15–16% of all river flow into the oceans.
The aquatic animals that inhabit the Amazon River are impacted by sunlight. All aquatic life in the Amazon is concentrated in the Amazon Basin, where the sun ensures the survival of all fish and plant life.
Thus, this is the chief effect of sunlight on the aquatic life inhabiting amazon river.
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