Look at the diagram of a euglena cell. Early scientists were not sure how to classify this organism.
What is one reason that it might be difficult to classify euglena?
Answer:
Since Euglena have features of both animals and plants, early taxonomists, working within the old two-kingdom system of biological classification, found them difficult to classify - not because they had features different from an animal and different from a plant, but because they had some features that were animal-like and some features that were plant-like.
Explanation:
If there is a piece of metal will it still be attracted to the magnetic even if it is outside of the magnetic field? Will the magnetic field line connect to the object?
Answer:
It will still attract.
Explanation:
When you think of it, when some of us were little we used magnets and played with them and would do a "magic" trick. We would put a magnet underneath the table and one on top and move the one underneath which would move the one on top without us touching it.
Hope this helps!!
How will antibiotic resistance affect human populations if no action is taken by our healthcare system?
Answer:
Bacteria, not humans or animals, become antibiotic-resistant. These bacteria may infect humans and animals, and the infections they cause are harder to treat than those caused by non-resistant bacteria. Antibiotic resistance leads to higher medical costs, prolonged hospital stays, and increased mortality
hi, can someone help me plz?
Answer: cell wall
Explanation:
What happens during cytokinesis?
Answer:
Explanation:
Cytokinesis is the physical process of cell division, which divides the cytoplasm of a parental cell into two daughter cells The contractile ring shrinks at the equator of the cell, pinching the plasma membrane inward, and forming what is called a cleavage furrow
Answer: Cytokinesis is the physical process of cell division, which divides the cytoplasm of a parental cell into two daughter cells. ... The contractile ring shrinks at the equator of the cell, pinching the plasma membrane inward, and forming what is called a cleavage furrow.
Explanation:
Lichens that colonize bare rocks are an example of a pioneer
species. In which environment would a pioneer species of lichen
be most successful?
Select one:
A:a grassland that has established itself on the site of an old farm
B:an old growth deciduous forest
C:a hillside that has been cleared by a volcanic eruption
D:a mountain meadow after a thunderstorm
Answer:
C. A hillside that has been cleared by a volcanic eruption.
Explanation:
Pioneer species are hardy species which are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been disrupted, such as by fire or other natural disasters. Some lichens grow on rocks without soil, so may be among the first of life forms, and break down the rocks into soil for plants.
Hope this helps!
The world's atmosphere can hold more moisture as it warms. As a result, the overall number of heavy storms has likely increased since midcentury due to global warming. True or false?
Answer:
True.
Explanation:
Yes, the number of heavy storms has increased due to global warming because of the holding power of moisture by the atmosphere due to higher temperature. When the air is warmed, the air can hold more water at that temperature so due to more holding power of moisture by the air the number of storms increases. One NASA study supports that global warming is causing the increase in number of extreme storms especially in the tropical ocean.
what not to do when handling acids and bases
Wear protective gear (goggles, long-sleeved clothes, and gloves) when using acids and bases. Do not allow acids or bases to come in contact with skin or eyes. Limit the amount of acids and bases transported for usage around the house. Cap the bottles of acid and base cleaners tightly.
Recently living organisms have been reclassified into three domains. A new living object has been found. It is multicellular, and can make its own food by using the sun. The cells have a cell wall, and they have a nucleus. CLE Which of the following could it be classified as?
1.animalia
2.plantae
3.fungi
4.protista
which statement is not part of cell theory ?
Answer:
option (C) is your answer
I hope it's helps you
Answer:
C.
Explanation:
I am so sorry if I'm the wrong answer.
What process do animals go through in molecular energy is available?
it says it all sorry
HELP!!!
Question 3 (2 points)
What is the phenotypic ratio of the F2 generation?
Answer:
9:7
Explanation:
We get the dominant phenotype in plants that have at least one dominant allele of EACH of the two genes; otherwise, we get the recessive phenotype. So, the observed ratio in the F2 generation is 9:7.
what allows the blood to clot
One of the four fundamental interactions in nature is? Electromagnetism Gravity Strong interaction All of the above
Answer:
The correct answer is All of the above. In nature there are four forces, (also called interactions or fields in Physics) that are responsible for all phenomena in the universe: the gravitational force or interaction, the strong interaction, the electromagnetic and the weak nuclear.
Explanation:
The fundamental interactions or forces that describe all the interactions between the constituents of matter are each of the interactions that matter can undergo and that cannot be decomposed into more basic interactions. There are four basic forces that describe all interactions: Gravitational, that is responsible for the interaction between particles with mass and, by extension, for the configuration on a macroscopic scale of the Universe and its stability. Electromagnetic, is responsible for the interaction between electrically charged particles and, by extension, for all Chemical reactions, Weak is responsible for the disintegration of certain unstable particles; that is, of those processes in which some particles decompose (decay) into lighter ones and Strong interaction is the most complicated interaction to describe due to its different behaviors at different action distances; by means of which a global vision of the to physics without breaking it down.
What is true about electromagnetic waves from the sun? A. They travel through space without a medium B. They consist of electric change emitted by the sun C. They are attracted to Earth's north and south magnetic poles D. They consist entirely of infrared waves
Answer:
Option A) is correct.
Explanation:
Electromagnetic waves refer to waves that are created due to vibrations between a magnetic field and an electric field.
Electromagnetic waves do not require a medium to travel through space without a medium. Electromagnetic waves can travel through air, vacuum of space and solid materials.
So,
Option A) is correct.
Question 4 options:
Indian
Southern
Pacific
Artic
Atlantic
NO LINKS
HAD TO REPOST SINCE SOMEONE SENT LINK
Answer:
Arctic sea
Hope it helps
What role does the process of photosynthesis play in cycling materials and energy through the ecosystem
Answer: Photosynthesis has a role in the cycling of matter and flow of energy into and out of organisms.
Explanation:
The flow of energy and cycling of matter can be traced. The chemical reaction by which plants produce complex food molecules to occur requires an energy input
What would happen to one of the organisms involved in a
symbiosis if the other organism is no longer present?
Answer:
Commensalism is a symbiotic relationship in which one species benefits while the other is not affected.
Explanation:
The organism of the ecosystem like the plants and the animals along with the microorganisms are connected and interlinked with one another through the ecological relationship. The relation could be positive, negative or neutral.
What is symbiotic relation?Symbiosis is an ecological relationship in which the organisms lives together and they both or a single organism is benefitted from the other.A symbiotic relationship in the ecosystem can be positive, neutral or negative and is of various types like commensalism, competition and parasitism.If the organism is removed from the symbiotic relationship then the factors like the shelter, food, locomotion etc. of the other organism can be affected adversely.Thus, symbiosis is important for the ecosystem.
Learn more about symbiosis here:
https://brainly.com/question/13889524
A student collected the animal shown below on field trip. The student used a dichotomous key and a microscope to classify the animal.
How should this animal be classified?
A. Arthropoda
B. Annelida
C.Mollusca
D. Platyhelminthes
Answer: The answer is D: Platyhelminthes
Explanation: took the test and it came back
Can y’all help me with 3 & 4 please I beg you I need to pass this test
Answer:
A
Explanation:
I think an untreated water can carry disease causing organisms and make people sick
PLEASE HELP I AM STUCK ON THIS QUESTION
Answer:
(1) gravity
Explanation:
Gravity is what keeps planets and those planet's moons in orbit.
Answer:
1
Explanation:
electricity doesn't exist in space or between galaxies
friction can never be found in space because there's no rough surfaces
gravity pulls every object down to earth
In the disease myasthenia gravis, the human body makes-by mistake- antibodies to its own acetylcholine receptor molecules. These antibodies bind to and inactivate acetylcholine receptors on the plasma membrane of muscle cells. The disease leads to devastating progressive weakening of the muscles of people affected. Early on, they may have difficulty opening their eyelids, for example, and, in an animal model of the disease, rabbits have difficulty holding their ears up. As the disease progresses, most muscles weaken, and people with myasthenia gravis have difficulty speaking and swallowing. Eventually, impaired breathing can cause death. Explain which step of muscle function is affected
Answer:
Muscle contraction function.
Explanation:
The nerve endings possess synaptic acetylcholine vesicles ready to be released. The action potential depolarizes the presynaptic terminal and increases the concentration of axoplasmic calcium; Acetylcholine molecules are thus released, so that the concentration of the neurotransmitter at postsynaptic (nicotinic) receptors is temporarily increased. This is followed by post-synaptic membrane depolarization, muscle membrane action potential with increased rnioplasmic calcium concentration, and finally muscle contraction. Acetylcholine is hydrolyzed by acetylcholinesterase and resynaptic at the presynaptic level by cholinecetyltransferase. The etiopathogenesis of myasthenia gravis is autoimmune and there are antibodies against acetylcholine receptors that circulate in the blood, as well as a decrease in the number of receptors on the motor plates, that is, it is produced by the postsynaptic blockage of the myoneural plaque, that generates fatigue and localized or generalized muscle weakness that is characterized by the worsening of the contractile force of the muscle.
____________ is the process in which action potentials in the nerve fiber lead to action potentials in the muscle fiber.There is then a rapid fluctuation in membrane voltage at the motor end plate, called the end-plate potential.Areas of the sarcolemma near the motor plate have gates that open, moving ions, which causes the ____________ potential that excites the muscle fiber.The process begins with a nerve signal stimulating a voltage-gated ____________ ion channel to open, allowing the ions to enter the axon terminal.The ions stimulate the release of ____________ into the synaptic cleft.
Answer:
Excitation is the process in which action potentials in the nerve fiber lead to action potentials in the muscle fiber. There is then a rapid fluctuation in membrane voltage at the motor end plate, called the end-plate potential. Areas of the sarcolemma near the motor plate have gates that open, moving ions, which causes the action potential that excites the muscle fiber. The process begins with a nerve signal stimulating a voltage-gated calcium ion channel to open, allowing the ions to enter the axon terminal. The ions stimulate the release of acetylcholine into the synaptic cleft.
How do gravity and inertia work together in our solar system?
Answer:
They work together to keep things in orbit.
Explanation:
Gravity pulls things in, while inertia says that all celestial objects will try their best to continue forward. The results in the orbiting of celestial objects, like the Earth, around other celestial objects, like the Sun.
Answer:
The gravity of the sun and the planets works together with the inertia to create the orbits and keep them consistent. The gravity pulls the sun and the planets together, while keeping them apart. The inertia provides the tendency to maintain speed and keep moving.(Source: sciencing.com)
I hope this helped! =)if a dice is rolled and a coin is tossed at the same time find the probability of getting prime number on dice and head of the same coin
Answer:
probability of a prime no. coming up is 3 : 1
probability of a head coming up. is 2 : 1
this isn't biology btw..
What happened to many Maldives islands due to rising sea levels?
Answer:
they were destroyed especially the houses because of how close they are build to the sea, in addition with the fact that the sea levels are rising
Explanation:
How is the function of the mitochondrion important for the role of the ribosome in a eukaryotic cell?
A. The mitochondrion generates the ATP needed by the ribosome to produce carbohydrates
B. The mitochondrion generates the proteins needed by the ribosome to produce ATP
C. The mitochondrion generates the carbohydrates that provide the energy needed for the ribosome to produce ATP
D. The mitochondrion generates the ATP that provides the energy needed for the ribosome to produce proteins
Answer:
Mitochondrial ribosomes (mitoribosomes) perform protein synthesis inside mitochondria, the organelles responsible for energy conversion and adenosine triphosphate production in eukaryotic cells.
Explanation:
Negative feedback loops:
a. decrease rate
b. increase rate
c. reverse change
d. reinforce change
Answer:
the answer would be c
Explanation:
hope it helped
2. When two species compete for the same
resource, they sometimes divide this
resource. This is an example of
a. niche partitioning
b. niche equivalency
c. evolutionary response.
d. ecological equivalence
Answer:
a
Explanation:
When two species compete for the same resource, they sometimes divide this resource. This is an example of niche partitioning. Hence, the correct option is A.
What is niche partitioning?Niche partitioning refers to the process by which different species divide up available resources in an ecosystem, such as food, habitat, or mates. This division of resources reduces competition between species and allows them to coexist in the same ecosystem.
It can also occur in terms of behavior or timing of an activity. In general, it helps to reduce competition between species, allowing them to coexist and thrive in the same ecosystem. For example, same species of bats hunting on same type of insects will hunt in the different time of the day to reduce competition.
This allows for greater biodiversity and stability in an ecosystem. Hence, the correct option is A.
For more details regarding niche partitioning, visit:
https://brainly.com/question/30164695
#SPJ6
Organisms that create their own energy are called
Answer:
plants create their own energy