Answer:
radioactive isotopes of elements decay
Explanation:
As radioactive isotopes of elements decay, they lose their radioactivity and become a brand new element known as a daughter isotope. ... The half-lives of several radioactive isotopes are known and are used often to figure out the age of newly found fossils.
Which of the following adaptations found in animals in deciduous forests protects against predators? a. Fat storage b. Migration c. Hibernation d. Camouflage.
Answer:
D
Explanation:
Answer:
d i just took the test
Explanation:
PLEASE HELP ME IM TIMED!
Answer:
C
Explanation:
proteins have a chemical composition of hydrogen carbon oxygen nitrogen and sometimes sulfur
What two elements make up the majority of the Earth's atmosphere?
Answer:
nitrogen and oxygen
Explanation:
Nitrogen and oxygen account for 99 percent of the gases in dry air, with argon, carbon dioxide, helium, neon, and other gases making up minute portions.
List reasons you would or would not be concerned about eating genetically modified food
Answer:
Reasons I would be concerned about eating GMO foods:
Explanation:
The FDA declaring them to be "substantially equivalent" to non-GMO foods amid controversy that adequate scientific testing had not been done.
Michael Taylor being in the FDA when "substantial equivalence" was declared. Michael Taylor was a Monsanto employee before taking the position at the FDA.
The technology itself of taking a gene from one species and inserting it into another species (horizontal breeding). While that may be perfectly harmless it is new technology that many believe has not been proven to be safe.
Greater amounts of pesticides being used on GMO crops, which means more pesticides may be getting in our foods.
Crops that are engineered to produce an insecticide in the plant itself possibly having harmful health effects on us. There is some evidence that this may be happening.
Which of the following is (are) part of a systemic immune response?
I. A fever
II. An increase in white blood cells in the body
III. An inflammatory response
I only
II only
III only
I and II only
I, II, and III
Answer:
The answer is I ,II and III
what specific type of tissue makes up the intervertebral discs
Answer:Fibrocartilage
Explanation:
Secretory IgA is best described as _____.
A. an opsonizing antibody that facilitates uptake by M cells through Fc receptors
B. a monomeric IgA that neutralizes antigen effectively at mucosal surfaces
C. an inflammatory immunoglobulin that stimulates the chemotaxis of neutrophils into mucosal surfaces
D. a complement-activating immunoglobulin that causes destruction of invasive microflora through the membrane-attack complex
E. a non-inflammatory immunoglobulin that restricts the passage of antigens across mucosal surfaces
Answer:
d.
Explanation:
...
What is photosynthesis?
Answer:
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Volcanic eruptions have immediate effects such as
AND long term effects such as
O global warming, hot lava
O global warming, lowering temperatures
O lowering temperatures, global warming
O hot lava, causing more hurricanes
Explanation:
Lowering temperatures and global warming
Which equations are balanced? Select all that appl
Answer:
B
D
F
Explanation:
Under very high pressure, the volume of a given object will decrease. What effect has the pressure inside Earth likely had on the density of materials in Earth’s core?
The effects the pressure inside Earth likely had on the density of materials in Earth’s core
What is Earth's pressure?It is made up of rock that is molten with slow-moving currents under the effect of increasing pressure and temperatures between 1,600 and 4,000 °F. Volcanic eruptions and earthquakes are caused by movement in the mantle layer.
Similar to how the temperature rises from the surface of the planet toward its center, so do the pressure. It is because of the heavy materials above, such as rocks.
The air density inside the International Space Station is kept at a level that is comparable to that of the surface of the planet. Consequently, the air pressure in the space station is equivalent to.
Therefore, the tremendous pressure inside Earth has the effect of reducing the volume of the materials, increasing their density.
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Answer:The high pressure decreased the volume of the materials, which caused their density to increase.
Explanation:
The ______ contain the neurotransmitter, located in the _________. Neurotransmitter will be released only if the neuron sends a(an) ________.
Answer:
Is contained in the synaptic vesicles.
Located in the axon terminal of the presynaptic neuron.
Explanation:
Neurotransmitters are stored in the synaptic vesicles, clusted closed to the cell membrane at the axon terminal of the presynaptic neuron.Neurontransmitters are released into and diffuse across the synaptic cleft, where they bind to specific receptors on the membrane of the postsynaptic neuron.
"Hope this helps".
NEED THIS ASAP Which of the following is (are) part of a systemic immune response?
I. A fever
II. An increase in white blood cells in the body
III. An inflammatory response
I only
II only
III only
I and II only
I, II, and III
Answer:
I, II, and III.
Explanation:
Immune response may be defined as the type of response generated by the body against the pathogens. The immune response is important to kill the pathogens.
Fever is a type of immune response generated to kill the pathogen by increasing the body temperature. The number of white blood cells of the body increases to fight against the pathogen. The inflammatory response may also generated to kill the pathogen.
Thus, the correct answer is option (E).
Please Help Putting These Answers Where They Go !
Answer:
Can you add a list?
Explanation:
Which statements best describe the role of glucagon and insulin in this scenario
What type of organism in the ocean food web is the most numerous
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[tex] \large \text \purple{producers : }[/tex]
Producers are described as autotrophic, which means they are able to make their own food. Just like producers on land, producers in the marine environment convert energy from the sun into food energy through photosynthesis. Phytoplankton are the most abundant and widespread producers in the marine environment
hope it helps ❤~
Answer:
above answer may help youWhich term refers to the pyramidal cells of the precentral gyrus whose fibers end in the nuclei of the brainstem
a person taking a glucose test is usually told to fast prior to the test. why would fasting be necessary?
When is the kinetic energy of a pendulum the least?
Question 5 options:
Half the distance on the path traveling back down.
On the path beginning the upwards swing.
At the bottom of the swing.
At the top of the swing where it briefly stops before changing direction.
Answer:
The answer is D. At the top of the swing where it briefly stops before changing direction.
Explanation:
When the pendulum is either at its far right or left position, the bob is at rest and therefore its kinetic energy is equal to zero- making it the lowest point of kinetic energy during the whole process.
Answer:
The answer is C
Explanation:
because when your on the swing the most kinetic energy is where you start to go to the upwards part right when the drop happens
it allows you to swing up very high making the option C correct
Question 4 of 10
A cell membrane is very specific about what it allows across. How does this
help the cell?
A. It helps the cell absorb as many different molecules as possible.
B. It is better for the cell if most molecules are prevented from
entering
C. Transport proteins allow only enzymes to pass through the
membrane.
D. The cell works better when it contains fewer proteins.
Oh
Answer:
(B) It is better for the cell if most molecules are prevented from entering.
I hope this helped at all.
Name the 2 different types of endoplasmic reticulum and explain the function of each type endoplasmic reticulum to the cell . (ie - what does each one 'produce', or make for the cell)
Answer:
The surface of the rough endoplasmic reticulum (ER) is covered in ribosomes, while the smooth endoplasmic reticulum is not covered in ribosomes.
Explanation:
Hence their terms, rough and smooth endoplasmic reticulum, the smooth is like a fine tube whereas the rough consists of ribosomes on its surface. Both the smooth and rough endoplasmic reticulum work together, delegate tasks and are the site for production and storage of proteins.
Smooth ER is responsible for storage and lipids production, while the rough ER is responsible for production of proteins and some hormones.
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Which type of macromolecule has the function of storing and transmitting hereditary information or genetic information?
Answer:
Nucleic acids are key macromolecules in the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell.
Explanation:
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Which of these statements could BEST describe the differences between the electron transport chain in cellular respiration and photosynthesis?
A
The electron transport chain in photosynthesis needs a source of energy to start with, and the one in cellular respiration does not.
В
The electron transport chain in cellular respiration releases ATP, and the one in photosynthesis does not.
C
The electron transport chain in cellular respiration uses oxygen, and the one in photosynthesis does not.
D
The electron transport chain in cellular respiration uses NADH, and the one in photosynthesis does not.
Answer:
c
Explanation:
etc uses oxygen
photosynthesis uses carbon dioxide
The best statements could describe the differences between the electron transport chain in cellular respiration and photosynthesis is the electron transport chain in cellular respiration uses oxygen, and the one in photosynthesis does not. Thus, option C is correct.
What is Photosynthesis?Photosynthesis is a biochemical reaction that combines chemicals with biological species to produce energy. Atoms of hydrogen bond with carbon to form glucose.
Carbon dioxide and hydrogen are the reactants that are used from the environment by the plants to make energy. Glucose and oxygen are the products. Splitting water into oxygen gas, hydrogen ions and electrons produces the energy for subsequent electron and proton transport and provides the energy to produce the sugars the plant needs.
The hydrogen atoms from the environment are absorbed by the plants and are combined with the carbon dioxide to yield glucose or sugar molecules for energy.
Therefore, The best statements could describe the differences between the electron transport chain in cellular respiration and photosynthesis is the electron transport chain in cellular respiration uses oxygen, and the one in photosynthesis does not. Thus, option C is correct.
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Directions: Together with your parents and siblings, create a simple irrigation system in your house that will help in growing your plants. Watch the video on the link below and use the knowledge that you gained from the lesson. After doing the activity answer the question: "How did you apply the knowledge you gain from the video and from the lesson in creating your own irrigation system?
Knowledge and understanding
20
Students showed excellent knowledge about the topic
10
Students showed limited knowledge about the topic
5
Students have very limited knowledge about the topic
The video with the necessary information to answer the question is missing. So, an irrigation system definition and example will be given.
An irrigation system is a structure made of tubes, hoses, and sprinkles; Its function is to water plants or crops with the correct amount of water and in an evenly way.
A simple irrigation system that will help grow plants at home is a plastic bottle with small holes connected to a hose with a tube that can lead the water from the hose to the bottle without losses. The bottle with its holes works as a sprinkler.
In conclusion, irrigation systems are in lawns, fields, or gardens, and they water the plants evenly so that they can grow. There are many types, but we can build a simple one with a bottle.
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what is the effect of telomere caps on cancer cells?
The telomere caps help to maintain genome integrity. In consequence, these repetitive sequences are fundamental to avoid the generation of cancer cells.
Cancer cells are a type of cells that proliferates in an uncontrolled manner, which is generally associated with mutations in the genome capable of altering normal gene expression patterns.
Telomere caps are repeated nucleotide sequences found at the end of chromosomes, which help to maintain genome integrity.
The elimination of these repetitive sequences (telomere caps) due to successive cell divisions triggers chromosomal (genome) instability and thus contributes to the emergence of genomic rearrangements that may lead to carcinogenesis.
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Label each of the components in the equation below. What type of reaction is shown in the equation?
Answer:
It's an esterification reaction
Glycerol + Fatty acid ---> Triacylglycerol or triglyceride
+3 water molecules
The chemical equations shown depict esterification and dehydration reactions.
What is a chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
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which population should display the highest growth rate?
the tendency of certain alleles to be inherited together is called
Answer: Genetic Linkage
Explanation:
It's during the meiosis stage of sexual reproduction.
Use the same link to answer the following
question
Why Is Biodiversity Important? Who Cares?
Name three biological services provided by
biodiversity
Biodiversity has been defined as the life that lives and interacts within the ecosystem. It is important as provides proper functioning of the ecosystem and supports life on earth.
What is Biodiversity?Biodiversity is the various forms of life and factors that live and exhibit interaction in a particular ecosystem and habitat. It is important as it includes the biogeochemical cycle that provides nutrients, ecosystem services, pollination, and reproduction.
Biodiversity provides various biological services, including food produced by plants for energy, oxygen for cellular respiration and photosynthetic reactions, and the biogeochemical cycle that includes the cycling of the nutrient through various spheres.
Therefore, biodiversity is an important part of the biosphere.
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Answer:
Biodiversity has been defined as the life that lives and interacts within the ecosystem. It is important as provides proper functioning of the ecosystem and supports life on earth.
What is Biodiversity?
Biodiversity is the various forms of life and factors that live and exhibit interaction in a particular ecosystem and habitat. It is important as it includes the biogeochemical cycle that provides nutrients, ecosystem services, pollination, and reproduction.
Biodiversity provides various biological services, including food produced by plants for energy, oxygen for cellular respiration and photosynthetic reactions, and the biogeochemical cycle that includes the cycling of the nutrient through various spheres.
Explanation:
Secondary nucleus is
a) Haploid
b)Diploid
c) Triploid
d) Tetraploid
The correct answer is option B. Diploid
The secondary nucleus is formed by the fusion of two polar nuclei which is a diploid.