The organelle that controls what goes in and out of the cell is the cell membrane, which is present in the second option. The cell membrane is the outer protective layer of the cell that does this function.
What is the role of the cell membrane?The cell membrane is the membrane that acts as the selective barrier for the cell, and through it, substances can enter and exit the cell. When energy is spent for the molecule to move, it is referred to as active transport; when it is not spent, it is referred to as passive transport.
Both eukaryotes and prokaryotes, as well as fungi, have different cell membrane compositions; some have more lipid content, some have less, some have cholesterol, and some don't. The lipids and proteins are arranged in such a way as to maintain cell homeostasis.
Hence, the organelle that controls what goes in and out of the cell is the cell membrane, which is present in the second option.
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Is the following sentence true or false? An aquifer
can be an area that includes many states.
i’ll mark brainliest
Answer:
Mitosis : C, E and D
Binary fission : A and B
what are harmones ? why are they produced
Answer:
Hormones are produced by glands and sent into the bloodstream to the various tissues in the body. They send signals to those tissues to tell them what they are supposed to do. When the glands do not produce the right amount of hormones, diseases develop that can affect many aspects of life.
Answer:
hope it helps
Explanation:
Hormones are produced by glands and sent into the bloodstream to the various tissues in the body. They send signals to those tissues to tell them what they are supposed to do. When the glands do not produce the right amount of hormones, diseases develop that can affect many aspects of life.
how many bones do human have
Answer:
206 bones lol cool right
whats the Location for Postsynaptic
Answer:
is located on an axon
What factor prevents us from finding fossils from the Precambrian era?
A. Life-forms in this era had no skeletons.
B. This was before life existed on Earth.
C. Life was destroyed by a series of mass extinctions.
D. There are no rocks left from that era.
Answer:
rhe answer is that the rocks of that time are buried deeply under the soil.
The factor that prevents us from finding fossils from the Precambrian era is that life-forms in this era had no skeletons. Therefore, option (A) is correct.
What was Precambrian era?The Precambrian era spans from the formation of Earth about 4.6 billion years ago to the start of the Cambrian period about 541 million years ago. During this time, life on Earth consisted mainly of simple, single-celled organisms such as bacteria and algae.
These organisms lacked the hard shells, bones, and other structures that are typically preserved as fossils. Therefore, the fossil record from the Precambrian era is relatively sparse, consisting mainly of impressions and other traces left by these early organisms in sedimentary rocks.
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PLEASEEEE ANSWER ITS DUE TODAY Polar bears can have thin medium or thick coats. Due to global warming temperatures at the poles are rising and ice is melting. Only 1 out of 3 polar bear Cubs can survive. Identify the 5 points below in the scenario above.
Answer:
Due to global warming temperatures at the poles are rising and ice is melting is described below in complete explanation.
Explanation:
Global warming is generating Arctic ice to melt at a very fast pace, ice shows sunlight, while water consumes it. Polar bears might be extinct by 2200 because of melting ice, climate modification, research reflects. Fresh research recommends the Arctic animals are in high danger of being killed into extinction by the finish of the century.
Why are green plants considered producers?
Green plants directly absorb sunlight to make energy.
Green plants contain chlorophyll.
Decomposers consume green plants.
Green plants are eaten by secondary consumers.
Answer:
The organisms that are capable of preparing their own food from simple inorganic substances like carbon dioxide and water by using sunlight energy in the presence of chlorophyll are called producers. The green plants synthesize their own food through the process of photosynthesis and thus are called the producers.plants produce food for themselves, they are known as producers.What happens next after the ribosome reaches the start codon?
Answer:
tRNA molecules attach to codons.
Which two processes cycle carbon directly between the atmosphere and biosphere?
I need to know the answer to number three please :)
Answer:
D- Kingdom
none of the rest makes sense
What is the end result of DNA replication?
O An mRNA strand that will be used to create a protein.
O two strands of DNA that are identical to cach other
O An MRNA strand that will not be used to create a proteir
O Two strands of DNA that are different from one another.
Answer:
two strands of DNA that are identical to each other
Explanation:
Replication is defined as the process in which two identical copies of DNA is formed from parent DNA strand. The end result of DNA replication is two strands of DNA that are identical to each other which are called chromatids. The process of DNA replication is known as semi-conservative as the end result is consist of one new and one old chain of nucleotides.
Hence, the correct answer is "two strands of DNA that are identical to each other".
I’ll mark u brainliest correct answer only !
Answer:
The answer is D
Explanation:
I dont really care about the brainliest, I just wanted to help
What part of a nucleotide accounts for the genetic variation between individuals:
Sugar, Phosphate, Deoxyribose, or Nitrogenous Base?
Answer: Nitrogenous base
Explanation:
Neurons are constantly firing on a regular basis in order to keep your body functioning. In your words, describe how a neuron utilizes a stimulus to create an action potential. (Be detailed)
Answer:
Neurons are in charge of receiving stimuli from the environment, transforming them into nervous excitations and transmitting them to the nerve centers, where they organize themselves to give a response.The cycle of depolarization and hyperpolarization of the membrane and return to the resting membrane potential is called the action potential, an all-or-nothing reaction that can occur at rates of up to 1,000 pulses / second. Membrane depolarization that occurs as voltage gate Na + channels open at one point on an axon passively spreads a short distance and triggers the opening of adjacent channels, resulting in the generation of another action potential. In this way the depolarization wave, or nerve impulse, is conducted along the axon.
Explanation:
Neurons are highly specialized cells whose central function consists in the generation and transmission of signals, in order to communicate with the other neurons of the nervous system and with the outside of the organism. They are made up of three parts: the cell body, the dendrites, and the axon. Dendrites are extensions of the cell body with short, tubular branches, through which each neuron receives signals from other neurons. These signals are added or averaged, and in the event that the total intensity of the received stimulus is greater than a certain threshold, the neuron will generate and emit an electrical response signal. This signal will be sent through the axon, which will transmit the information to other neurons through chemical exchange. The axon divides near the end into thin branches that contact other neurons. The point of contact is called the synapse. At the synapse, there is a gap between the two cells called the synaptic cleft. The synapse is produced by the release of chemicals from the presynaptic neuron that excites the postsynaptic, transmitting the informational code. The arrival of an impulse at the end of a nerve fiber causes a chemical compound, a transmitter substance, to be released, which excites the neighboring neuron. The same neuron may have inhibitory and excitatory connections with different neurons, for which it will need to produce different chemicals that act as transmitters. A neuron receives and integrates multiple stimulations through the synapses, those received by the dendrites are added to those received in the soma so that the electrical potential of the cell membrane ends up exceeding the threshold and originates a nerve impulse in the area of the axonal cone. Nerve impulses are electrical signals generated by the spike trigger sites (axon cones) of a neuron as a result of membrane depolarization, which are conducted along the axon to its termination. The transmission of impulses from the endings of a neuron to another neuron, a muscle cell or a gland occurs at the level of the synapses.
Which of the following is likely to be a result of global warming?
PLEASE HELP!! WILL BE MARKED BRAILIEST
2. an organism whose cells do not contain a nucleus that is bound by a
membrane *
Fungi
prokaryote
Eubacteria
Animalia
Answer:
Answer is prokaryote.
Explanation:
I hope it's helpful!
The process of planting trees to reestablish forests that have been cut down is called __________.
A)
reforestation
B)
siliviculture
C)
sustainable foresting
D)
zoning
E)
second-growth foresting
Answer:
A) reforestation
Explanation:
HOPE IT HELPS YOU
The size of a food chain can vary, but the number of levels that a food chain can reach is limited. Why does this limit exist ?
Answer:
Energy is lost at each trophic level.
Explanation:
hope this helps have a good rest of your day :) ❤
Energy is lost at each trophic level.
What is food chain ?
Food chain, in ecology, the sequence of transfers of matter and energy in the form of food from organism to organism.
What is tropic level?
Trophic level is defined as the position of an organism in the food chain and ranges from a value of 1 for primary producers to 5 for marine mammals and humans.
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connection between sunlight, melanin, and freckles
Answer:
Freckles are small brown spots on your skin, often in areas that get sun exposure. In most cases, freckles are harmless. They form as a result of overproduction of melanin, which is responsible for skin and hair color (pigmentation). Overall, freckles come from ultraviolet (UV) radiation stimulation
Explanation:
Answer:
brainliest please
Explanation:
sunlight helps us tan and melanin helps us tan and freckles come from sun exposure and it's basically splotches of melanin
choose the correct statement about the earth crust A. the earth crust is thin and could be compared to an eggshell B. most of the earth crust is only 6 km deep C. the earth crust is around 200 km deep D. the earth crust is the thickest layer
''A. the earth's crust is thin and could be compared to an eggshell'' is the correct answer.
Why earth's crust is considered an egg shell?The egg is considered a tiny model of the Earth. The thin shell of the egg represents the Earth's crust which is divided into plates. Both earth and egg have a thin and brittle shells. The crust of the earth is broken into various pieces like the cracked shell of a boiled egg. The mantle of the earth is like the egg white part whereas the core of the earth is present in the center like the egg yolk. The earth's crust is broken into pieces that geologists called it plates. The inside of the planet earth is layered like an egg. Scientists considered the surface of the Earth to be cracked like a big eggshell. They call these pieces tectonic plates that cover the Earth. The plates float slowly on the surface and sometimes crash with each other, and move away from each other.
So we can conclude that option A is the right answer about the earth's crust.
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PLZZZZZ HELP!!! WITH 5 STAR THANK AND MARK BRAINLIEST!!! Explain how form and function are related in human cells. Include examples.
Answer:Each cell carries out basic life processes that allow the body to survive. Many human cells are specialized in form and function, as shown in Figure below. Each type of cell in the figure plays a specific role. For example, nerve cells have long projections that help them carry electrical messages to other cells.
Explanation:
Answer:
I agree with the other person
have a good day :)
Explanation:
Use the point in the diagram to name the figure
Answer:
i dont have anythign on it
Explanation:
What is the precipitation of Seattle if:
wind speed (mph) - 7
air pressure (mb) - 1020.8
air temp (f) - 42
cloud cover (%) - 0
Answer:
88
Explanation:
How do plants in the ocean deal with the limited penetration of light into the water?
Group of answer choices
Loose root systems
Tall structures with broad leaves
Mutualism with fish
Reliance on tidal rises and falls
Answer:
3
Explanation:
What are 2 facts about energy?
Energy can neither be created nor destroyed.
Energy can only be changed from one form to another.
The thumbs of humans can grasp things because they are ___.
a) upright
b) opposable
c) unjointed
d) thin
Answer: b. is the correct answer opposable
Explanation:
opposable: (of the thumb of a primate) capable of moving toward and touching the other digits on the same hand.
A student has drawn a model of cellular respiration, but it contains 3 errors.
Label each part of the model as "CORRECT" or "WRONG" by choosing from the drop-down menu.
In the next question, you will explain each error you identified in the model
CELLULAR RESPIRATION
1. LIGHT energy
4.
OXYGEN
2. GLUCOSE
>
3. OXYGEN
Note: Water has
intentionally been left out
of this model and therefon
is not an error
5.
Light energy has
been changed into
chemical and
kinetic energy
Answer:
LIGHT energy - correct
OXYGEN - correct
2. GLUCOSE - incorrect
Explanation:
Hope this helps please mark me as brainlyest
please help me with this homework question!
Answer:
50%
Explanation:
Answer:
a I do believe
Explanation:
can you help me with my question
In the diagram where do you think differentiation begins to occur?
Answer:
B i believe
Explanation: