Answer:
The cell was first discovered and named by Robert Hooke in 1665. it is the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body. A cell has three main parts: the cell membrane, the nucleus, and the cytoplasm.
Explanation:
xx
Please help!!! Need the answerr
Answer:
C
Explanation:
Mined materials are used for different purposes
Mining is the process of removing valuable materials from the Earth's surface, including the oceans, hence option C is correct.
What is mining?Extraction of useful materials from the ground is known as mining. A few notable exceptions, a mineral is an inorganic substance found in nature that has a unique chemical composition, physical characteristics, or molecular structure.
Mined materials include coal, gemstones, and iron ore, to name a few. The raw substance used to make iron is called iron ore. Mining has existed since the primordial era.
In essence, it is the procedure used to extract valuable information from large amounts of data or data warehouses.
It is clear that the phrase itself is a little ambiguous. Coal or diamonds are the end product of the extraction process in the instance of mining for coal or diamonds.
Therefore, humans mine materials for different purpose.
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The axon sends the messages
from the cell body to the
a
A. motor cortex
B. synaptic knob
C. limbic system
In the dna isolation process, detergent was used to:.
In the DNA isolation process, detergent was used to:
--> facilitates homogenization. it allows the precipitate to form and stabilizes the DNA and it binds the negative ends of DNA.
Hope that helps!
Which is required for all organisms to survive?
Question 1 options:
Carbon dioxide
Water
Sunlight
Blood
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
For a Normal living organism to survive, each of the above necessities are important.
Therefore, we can say : it's All of these
What nonrespiratory air movement is due to a spastic contraction of the diaphragm while the glottis is closed
Answer:
Hiccup is what a nonrespiratory air movement is due to a spastic contratction.
This is a ___________ gibbous moon.
a) crescent
eliminate
b) new
c) waning
d) waxing
This is a new gibbous moon.
A common error is to describe arteries as the vessels that always transport ______ blood instead of describing it as a vessel that takes blood ______ from the heart.
An error is to describe arteries as the vessels that always transport oxygenated blood instead of describing them as vessels that take blood away from the heart.
What is an artery?An artery is a big blood vessel that transport enriched oxygen blood to all part of the human body.
This rich oxygen blood is used by human tissues to carry out cellular respiration (aerobic cell respiration).
Moreover, veins are other types of blood vessels that are also capable of carrying blood toward the heart.
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Which method is best for seperating salt and breadcrumbs?
Answer:
Filtering to obtains breadcrumbs and the heat the salt solution to saturation and cool it
what is the answer to this question its biology
Answer:
The second one?
Explanation:
That's very complicated but from what I can tell it looks like it would be the second answer
unifying scientific explanation supported by testing
Unscramble the word.
RYTHOE
Answer:theory
Explanation:
it stood out to me
What are some ways that scientists and engineers are using our understanding of DNA?
The energy from organic food molecules is stored in ATP in the process of?
Answer:
ATP molecule Energy is stored in the bonds between the phosphate groups (PO4–) of the ATP molecule. When ATP is broken down into ADP (adenosine diphosphate) and inorganic phosphate, energy is released. When ADP and inorganic phosphate are joined to form ATP, energy is stored.
Explanation:
What candy, in high doses, can cause abnormal heart rhythms, as well as high blood pressure?.
Answer:
Eating more than 57g (2 ounces) of black liquorice a day for at least 2 weeks could lead to potentially serious health problems, such as an increase in blood pressure and an irregular heart rhythm (arrhythmia).
Explanation:
1. Decide if the following statements are True or False. If the statement is False, rewrite the statement to make it True.
a. Most cells are visible to the human eye without a microscope.
b. The cell carries out all functions for survival.
c. Prokaryotes are unique because they have no nucleus.
d. Eukaryotes are complex cell with organelles but with no nucleus.
e. Cells have cytoplasm.
f. Almost all living things are made of cells.
g. The cell membrane prevents some chemicals from entering the cell.
h. Plants need chloroplasts for photosynthesis.
i. Animal cells have a cell wall instead of a cell membrane.
j. In a cell, the breakdown of food molecules releases energy.
k. The cell passes waste materials from inside the cells to outside the cells.
l. Cells reproduce in orderly fashion according to the type of cells.
Which hormone produced by the kidneys stimulates hematopoiesis.
Answer:
Erythropoietin hormone
1. Brittle deformation is generally seen in
a. rocks far below Earth's surface
b. rocks with strong internal molecular bonds
c. limestone and schist
d. gypsum and shale
Answer:
Brittle deformation is seen in - Rocks that are present far below the earth's surface.Explanation:
option a is correctAnswer:
(b) rocks far below Earth's surface
Name the following molecular compounds: CO, N2O4, PCI3.
Answer:
CO = carbon monoxide
N2O4 = Dinitrogen tetroxide
PCl3 = Phosphorus trichloride
The hormone ________ signals feelings of fullness to the brain.
Answer:
leptin
Explanation:
Another hormone, Leptin, produced by fat cells, is an Adiposity signal that communicates with the brain about long-range needs and satiety, based on the body's energy stores. Research suggests that Leptin amplifies the CCK signals, to enhance the feeling of fullness
How do the circulatory system and immune system work together to respond to an injury?
A Increased blood flow kills healthy cells which prevents infection at the site of the injury
B Increased blood flow removes infected cells from the body at the site of the injury.
C Increased blood flow carries white blood cells to the site of the injury.
D Increased blood flow allows for an increase in the exchange of o, and co, at the site of the
injury
Answer:
C. Increased blood flow carries white blood cells to the site of the injury.
Explanation:
Explain the importance of your group using your cut leaf and not the cut leaf from another group to determine surface area.
Answer:
leaf sizes vary
Explanation:
all leaves can never be the same
The magnetic force will push magnets apart if you hold the
Your answer:
north poles of two magnets close together.
south poles of two magnets close together.
north pole of one magnet near the south pole of another magnet.
Both (a) and (b)
Answer:
D. both a and b
Explanation:
If you hold the north poles of two magnets close together, the magnetic force will push the magnets apart. The same is true if you hold the south poles close together. If you hold the north pole of one magnet close to the south pole of another magnet, the magnetic force will pull the magnets together.
which parts of the flower are under more intensive selection for showiness (size, scent, color), the seed-producing part or the pollinator-producing parts
Answer:
The pollinator-producing parts.
Explanation:
Showiness, as described in the question, is based on size, scent, and color.
The pollinator-producing parts have certain scents, sizes, and colors to 'pop out' so they attract pollinators such as bees, so the flower can reproduce.
The excretory structures of terrestrial arthropods are slender projections from the digestive tract that are attached at the junction of the midgut and hindgut. These are called:.
The excretory structures of terrestrial arthropods are slender projections from the digestive tract called malpighian tubules.
What are Malpighian tubules?The malpighian tubules are channels in the digestive system of the alimentary canals present in arthropod species.
The Malpighian tubules function to provide an excretory system and osmo-regulatory system to arthropods.
These slender tubules are fundamental for the survival of many species of insects (i.e., arthropods).
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Why were there no coal deposits formed during the Precambrian time? Choose the correct answer. There were no swamps with land plants. There was not yet enough carbon on Earth. There was not enough land on which coal deposits could form. There was not enough carbon dioxide in Earthâs early atmosphere
There were no coal deposits formed during the Precambrian period because there wasn't enough carbon dioxide in Earth's early atmosphere.
What is the Precambrian?The Precambrian is a Super Aeon, corresponding to the time period from the formation of the Earth (~4.6 billion years – b.a.) to the beginning of the Cambrian Period (~542 million years – m.a.).
With this information, we can conclude that there were no coal deposits formed during the Precambrian period because there wasn't enough carbon dioxide in Earth's early atmosphere.
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Lyme disease is an example of a(n) ______ infectious disease, because it is only seen in areas of the US where the tick vector for the pathogen is found.
Lyme disease is an examples of vector borne infectious disease.
What is Lyme disease?Lyme disease is also called Lyme borreliosis, is an example of a vector-borne disease whose causative agent is Borrelia bacterium and it is transmitted by tick in the genus Ixodes. The common sympyoms of the infection is red rash, known as erythema migrans, which appears at the site of the tick bite.
Therefore, Lyme disease is an examples of vector borne infectious disease.
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Lyme disease is a disease transmitted by the bite of an infected tick and is an example of an endemic infectious disease.
What is an endemic infectious disease?It refers to the constant presence and/or habitual prevalence of a disease or an infectious agent in a population of a geographic area.
Lyme disease is a borreliosis transmitted by ticks of the genus Ixodes that seems to be limited to certain geographic areas of the US, therefore it is considered endemic.
Therefore, we can conclude that Lyme disease is a disease transmitted by the bite of an infected tick and is an example of an endemic infectious disease.
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What is one potential benefit and one potential negative impact of genetically engineering crops?
Answer:
potential benefit: more nutritious food
potential negative impact:biodiversity loss
What do most birds do in the wintertime?
Answer:
Most birds migrate south in the wintertime.
Explanation:
Hope that helps!
Answer:
[tex]beinggreat78[/tex] here to help you!
Most birds torpor or migrate.
What does, "Torpor" mean?Torpor is a sleep-hibernate-like state where birds lower their body temperature as well as heart rate to maintain their body heat. This allows them to survive for the winter time.
In recent decades, average global temperatures have increased significantly. Scientists agree that the widespread destruction of the Amazon rain forest contributes to climate change. Which mechanism might be cited to support that hypothesis?
A Deforestation causes water on the ground to reflect sunlight.
B Deforestation reduces the number of plants able to absorb carbon dioxide.
C Photosynthesis produces energy, which gives off heat.
D Plants use up energy during cellular respiration.
[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]
The main reason causing average global temperature rise is increase in amount of green house gases like Carbodioxide, and since deforestation reduces a vast number of plants, so there is lack of plants absorbing CO2 causing this whole thing.
So, according to this the Correct choice is B
The mechanism that supports the hypothesis that the widespread destruction of the Amazon rainforest contributes to climate change is Deforestation reduces the number of plants able to absorb carbon dioxide. The correct option is B.
Forests, like the Amazon rainforest, play a crucial role in mitigating climate change because trees act as carbon sinks. They absorb carbon dioxide during photosynthesis and store it as biomass. When forests are cut down or destroyed through deforestation, the carbon stored in trees is released back into the atmosphere in the form of carbon dioxide, a greenhouse gas that contributes to global warming.
The Amazon rainforest, often referred to as the "lungs of the Earth," is particularly vital in this regard because of its vast size and high biodiversity. As large areas of the forest are cleared for logging, agriculture, and other human activities, the ability of the Amazon to absorb carbon dioxide diminishes, leading to increased greenhouse gas concentrations in the atmosphere and contributing to the warming of the planet.
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Julia made a model of a cell in a clear plastic zipper bag. She used a marble for the nucleus and pinto beans for mitochondria.
Which of the following options would be best for making her model more like a plant cell?
A.
Put the bag inside a clear plastic box.
B.
Put the bag inside a larger clear plastic bag.
C.
Take the marble out of the bag.
D.
Take the pinto beans out of the bag.
Answer:A
Explanation:I did this 1
Our early atmosphere was anoxic- without free oxygen; how did this change?
A primitive organisms carrying out chemosynthesis
B primitive organisms carrying out photosynthesis
C primitive organisms carrying out cellular respiration
OR A AND B
Answer:
B
Explanation:
Our early atmosphere was anoxic and primitve organisms carried out photsynethess.