Answer:
4 amperes
Explanation:
Using the formula; V = IR
Where;
V = voltage (volts)
I = current (amperes)
R = resistance (ohms)
From the formula; I = V/R
According to the information provided in this question, the resistance of circuit (R) is 3 ohms while the voltage (V) produced by the cell in the circuit is 12 volts.
Therefore, I = 12/3
I = 4 A or amperes.
Describe the scientific theory of cells (cell theory) and relate the history of its discovery to the process of science.
Answer:
The cell theory states that all living organisms are made up of cells and each cell is the fundamental and functional unit of the living organism. The last point of the theory is that each cell is produced by a pre-existing cell.
The cell discovery was made by Robert Hooke with the help of the compact microscope was made by him. He observed the cell wall of the cell in cork and after him, many other scientists proved the presence of cells and presented evidence of the cell theory.
Which of the following is not a component of Guba & Lincoln's criterion, "trustworthiness"?
a) Transferability
b) Measurability
c) Dependability
d) Credibility
What the Amazon climate
Answer:
Hot, humid and damp.... this is due to the Amazon Rainforest
Explanation:
hope this helps :P hav a gud day :3
Case study A man and woman are deciding whether to have a child. The genotype of the man includes a recessive allele for an inherited
disease. The genotype of the woman does not include this allele. Both parents have a normal phenotype. Could the child inherit the
disease? Explain your reasoning. This is a great place to use your CER (Claim, Evidence, Reasoning) skills!
I
+
Explanation: When both parents are carriers for a recessive disorder, each child has a 1 in 4 (25 percent) chance of inheriting the two changed gene copies. A child who inherits two changed gene copies will be “affected,” meaning the child has the disorder.
Hope this helps! :)
at what type of boundary would you find a rift valley that is growing wider
Answer:
Divergent boundaries
Explanation:
Answer:
divergent boundaries (◡‿◡)/
How are bacteria different from viruses?
A. Bacteria are multicellular.
B. Bacteria are eukaryotes.
C. Bacteria are not killed by antibiotics.
D. Bacteria can replicate themselves without help from a living cell.
Answer:
d
Explanation:
bacteria can replicate themselves without help from a living cell.
Bacteria are capable of self-replication without the assistance of a live cell. So, the correct option is D.
What is Bacteria?Bacteria are ubiquitous, generally free-living creatures that are frequently made up of one biological cell. They make up a significant portion of the prokaryotic microbial kingdom. Usually a few micrometres in length, bacteria were among the earliest life forms to appear on Earth, and are ubiquitous in most of its environments.
Bacteria lack a nucleus bound to the membrane and other internal components and are consequently placed within the group of unicellular life-forms called prokaryotes. Prokaryotes have dominated life on Earth for at least three-quarters of its existence and have adapted to nearly all of the planet's biological niches. Bacteria are capable of self-replication without the assistance of a live cell.
Therefore, the correct option is D.
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Extinctions can be caused by presentation, natural disasters, or damage to the ___
Answer:
environment/habitat
Explanation:
Organisms need their natural habitat to survive without it the organisms will most likely go extinct
Could I get help with these two questions please .
2 is D
I don't know what 3 is, sorry.
help please!!
which of the following is the correct pathway of blood through the body, including the lungs?
no troll please!!!!
The correct pathway of blood through the body, including the lungs, is heart----> aorta----> body----> vena cava----> heart----> pulmonary arteries----> lungs----> pulmonary veins----> heart.
What is blood circulation?It is the circulation of blood throughout the body.
What are the two types?The two types are:
Pulmonary circulation starts with deoxygenated blood from the right ventricle where, through pulmonary arteries, it reaches the lungs (oxygenation of blood occurs), then through pulmonary veins, blood enters the heart in the left atrium.
Systemic circulation starts with oxygenated blood from the left ventricle, from where, through the aorta, it is pumped to the body, then to the superior or inferior vena cava, and then blood reenters the heart in the right atrium.
Hence, the correct answer is option b): heart--> aorta--> body--> vena cava--> heart--> pulmonary arteries--> lungs--> pulmonary veins--> heart.
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how are hormones transported
Explanation:
hormones are transported through blood to the areas where they are needed
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Picture yourself hiking in a narrow canyon in Utah. The canyon is dry and it hasn’t rained for weeks. You see some thunderhead clouds in the sky, but not one drop of rain all day.
Nevertheless, a small rush of water starts to run through the canyon, turning it into a creek. There must have been a heavy rainfall somewhere nearby. Water runs down the sides of the canyon, forming little waterfalls. You realize that there could be a flash flood coming! You turn quickly up a side trail to higher ground before you are washed down the canyon.
What are the stimulus and response in this scenario?
A. The stimulus is the rain clouds and the response is the water in the canyon.
B. The stimulus is the appearance of water in the canyon and the response is moving to higher ground.
C. The stimulus is water running down the canyon walls and the response is little waterfalls forming.
D. The stimulus is the rain somewhere else and the response is you realize that there could be a flash flood.
Answer:
D i think
Explanation:
Answer:
D
Explanation:
Bcause tyeaws
4. If you just finished exercising, what happens to the amount of carbon dioxide you
exhale?!
Answer:
More Carbon dioxide is removed from the blood and exhaled in the breath
Explanation:
During exercise there is an increase in physical activity and muscle cells respire more than they do when the body is at rest. The heart rate increases during exercise. The rate and depth of breathing increases - this makes sure that more oxygen is absorbed into the blood, and more carbon dioxide is removed from it. So, when you exercise and your muscles work harder, your body uses more oxygen and produces more carbon dioxide.
In which of the following circumstances would a cell undergo apoptosis?
DNA damage in a cell cannot be repaired at a cellular checkpoint.
A cell becomes cancerous.
A cell successfully completes the G1 phase of the cell cycle.
A cell successfully completes the M phase of the cell cycle?
Answer:
i need help tooooooooooooo
CONCEPT MAPPING
Use the following terms to complete the concept map below:
breakers
deep-water waves
surf
swells
undertow
Answer:
a. deep-water waves; b. swells; c. breakers; d. surf; e. undertow
Explanation:
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The pesticide can be removed if the food chain had more animals that ate insects and not crops so say that they released thousands of bats that could help limit the insects population.
Ligand gated means controlled by the _______________ or signal molecule. If the door is closed, certain ______________are blocked from entering the cell. When the ______________or signal molecule is attached, the door is open for certain ________________to enter the cell. These types of receptors are important in the _________________.
Answer:
ligand; ions; ligand; ions; nervous system
Explanation:
Ligand-gated ion channels are transmembrane protein complexes that open when they bind to their corresponding ligands (e.g., neurotransmitters). This type of receptor is known to modulate the synaptic transmission between neuron cells or neuron and muscle cells. In the nervous system, ligand-gated ion channels located at sites of synaptic contact determine the ion flow in response to neurotransmitter binding. Some examples of ligand-gated ion channels include gamma-aminobutyric acid A (GABA-A) and nicotinic cholinergic receptors.
Such events may occur at a transform plate boundary
A. Earthquakes
B. Mountain building
C. Formation of the new oceanic crust
D: volcanoes
what is the carbon cycle in the alpine tundra ecosystem. (how does carbon move)
Answer:
Tundra is one of the biggest carbon dioxide sinks on Earth. ... As a result of climate change, tundra soils are thawing deeper and deeper and for a longer periods of time in the upper layers of permafrost. This causes organic matter to decompose faster, releasing larger amounts of carbon dioxide into the atmosphere.
The living part of an ecosystem is called a/an
A. Habitat
B. Population
C. Niche
D. Community
Answer:
c
Explanation:
because more people live thete
ILL GIVE BRAINLEST!!!!!!
What is copied each time a cell divides?
Answer:
Mitosis is used to produce daughter cells that are genetically identical to the parent cells. The cell copies - or 'replicates' - its chromosomes, and then splits the copied chromosomes equally to make sure that each daughter cell has a full set.
Explanation:
PLEASE MARK ME AS BRAINLIEST
Which characteristic does not belong to the bird class?
O feathers
O endothermy
O bones are packed solid
O no teeth
Answer:
bones are packed solid but am not that sure
On the basis of blood type, you know that one of the children could not have been the son of the two adults. Does this prove that the other child is their son
Answer:
No.
Explanation:
No, Blood test can't tell us that the which child is the son of two adults, it can only be find out by DNA testing of children with the two adults. If the DNA testing matches of children to the adults then we can say that these children are the sons of two adults while on the other hand, if the DNA of two children not match with the two adults then we can say that they are not their child.
what's a trait that can possibly mask another trait
Answer:
recessive
Explanation:
what are extinct species ? Give two examples.
A scientist believes that she has found a new life form. Which of the following conditions is NOT considered essential in determining whether the putative new life form exhibits/shows the properties of life?
a. It appears to have cells when viewed under a microscope
b. It seems to react to being touched
c. It possesses a purposeful anatomical structure that differs from one another
d. It's body is bilaterally symmetrical
Answer: It's body is bilaterally symmetrical
Explanation:
The option that is not considered essential in determining whether the putative new life form shows the properties of life is that its body is bilaterally symmetrical.
The fact that the creature has cells signifies that it has life, reaction towards touch is also another factor that shows its has life.
We should note that its body shape doesn't signify I it has life or not. Therefore, the answer is D.
Emtricitabine is one component in Truvada, a drug used for HIV pre-exposure prophylaxis (prevention). What functional group(s) are present
Answer:
2-(hydroxymethyl)-1, 3-oxathiolan-5-yl group.
Explanation:
2-(hydroxymethyl)-1,3-oxathiolan-5-yl group is a functional group of Emtricitabine. Emtricitabine is an antiviral medicine that treat human immunodeficiency virus (HIV) disease by preventing multiplication in your body. Emtricitabine comprise of organofluorine compound in which 5-fluorocytosine is substituted at the 1st position by a 2-(hydroxymethyl)-1,3-oxathiolan-5-yl group.
What occurs in an updraft?
A. Cool air from the surface spins in a circle.
B. Cool air from mountains causes high winds.
C. Warm air high in the atmosphere sinks.
D. Warm air from the surface rises.
Answer:
D. Warm air from the south rises.
Explanation:
Updraft occurs when the warm air from the surface rises.
What is Updraft?Updrafts occur when the warm air rises to the level when the process of condensation begins and precipitation starts to develop.
In a mature storm, updrafts are present alongside downdrafts that caused by cooling and falling of precipitation so we can conclude that updraft occurs when the warm air from the surface rises.
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This food web shows the flow of energy between producers and consumers. Choose ALL statements that correctly describe these
relationships.
A)
The Sun is not part of the food web of any ecosystem
8)
Consumers get their energy from plants or other animals.
C)
Producers are able to make their own food from sunlight,
D)
Sunlight is the source of energy that drives the food web,
E)
Consumers are the source of energy that drives the food web.
PLS HELP FAST
Answer:
b consumers get their energy from plants or other animals.
Explanation:
the consumers eat the plants or animals and that is how they get there energy. p.s i had a test about food webs
How is fossils the best evolutionarily evidence for scientist