Answer:
A is the right answer
Explanation:
The cell wall is the outermost layer of the cell. It surrounds the cell membrane and provides these cells with structural support and definite shape. It prevents the over-expansion of the cell when water enters the cell.
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What are some questions that scientists on Earth might study? Choose all that apply.
A. How Weather & Climate systems affect Earth?
B. How can Earthquake be detected?
C. How does light travels through optical fibers?
D. Is water found on other planets?
Answer:
A,B,C
Explanation:
It won't be D. because you would need to study or go to the other planets to answer the question.
Hope this helps!
Why is it good for scientists to be skeptical? ecause
Answer:
Skepticism helps scientists to remain objective when performing scientific inquiry and research.
Explanation:
when placed in the same container, oil and water do not mix because
Oil and water do not mix because mix each other because water is a polar solvent while the molecules of oil are non-polar in nature.
What are the characteristics of water?The characteristics of water are as follows:
It is a universal solvent that is polar in nature. It possesses high heat capacity and heat of vaporization. It has properties like cohesion and adhesion. The solid form of water is less dense as compared to its liquid form.Due to differences in their polarity, the molecules of water and oil are not intermingled with each other. Due to this, the polar compounds are dissolved in a polar solvent while non-polar compounds like oil are dissolved in a non-polar solvent. Thus, the molecules of oil will finally stick to each other and are immiscible with water.
Therefore, oil and water do not mix because mix each other because water is a polar solvent while the molecules of oil are non-polar in nature.
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What happens when self-determination mechanisms break down?
Answer:
When self-determination mechanisms break down it mistakes self-tissue as foreign agents and pathogens. This results is Auto-Immune disease.
HOPE THIS HELPS!
When the self-determination mechanisms break down, the body misinterprets its own tissues as foreign antigens, which activates the autoimmune mechanisms to destroy the body's own cells, mistaking them for foreign factors, this happens mainly in mantle autoimmune diseases.
Autoimmune diseases are a group of diseases in which tissue damage is caused by a humoral or cell-mediated immune response to a person's own antigens.
What are antigens ?In immunology, an antigen (Ag) is a molecule or molecular structure or any foreign particle or pollen grain that can bind to a specific antibody or T-cell receptor. The presence of antigens in the body can trigger an immune response. The term antigen originally referred to a substance that is a generator of antibodies. Antigens can be proteins, peptides (chains of amino acids), polysaccharides (chains of monosaccharides/simple sugars), lipids or nucleic acids. Antigens are recognized by antigen receptors, including antibodies and T-cell receptors.
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Which statement best explains why less energy is available to organisms as a food chain gets longer?
B.Organisms use some of the energy for life processes
You have an Elodea sprig in a test tube containing bromothymol blue. Then you watch it for several days. At what time of day will the oxygen level in the tube be the lowest?
a)just before sunset
b)midnight
c)just before sunrise
d)mid-afternoon
Answer:
c
Explanation:
If you put an Elodea plant in a test tube containing bromothymol blue and watch the oxygen level, the time of the day in which the oxygen level in the tube would be lowest will be just before sunrise.
First, there is a need to understand oxygen is produced as a result of photosynthesis according to the following equation:
[tex]6CO_2 + 6H_2O ---> C_6H_1_2O_6 + 6O_2[/tex]
The process of photosynthesis takes place in 2 reactions:
Light-dependentLight-independentOxygen is produced from the splitting of water in the light-dependent reaction. Hence, the production of oxygen stops when there is no light - when the sun sets.
Whatever quantity of oxygen that has been produced just before the sun sets would remain and will gradually be used for respiration by the Elodea plant until the sun rises again the following day.
Thus, the level of oxygen in the tube would usually be lowest just before the sun rises and oxygen can be produced again.
More on the light reaction of photosynthesis can be found here: https://brainly.com/question/14015819
The space within a cell which holds water is:
a) nucleus
b) cytoplasm
c) vacuole
d)chloroplast
Answer:
[tex]\boxed {\tt C. \ Vacuole}[/tex]
Explanation:
Let's analyze each answer choice.
A. Nucleus
Houses the genetic material (DNA) and produces RNAB. Cytoplasm
Fills in space, keeps organelles in place, and chemical reactions occur hereC. Vacuole
Stores substances, isolates toxins, helps with excretionD. Chloroplast
Photosynthesis occurs hereBased on the functions of each organelle, we can assume the best answer is C. Vacuole. Vacuoles store substances, so these organelles would hold water.
describe the process of building a paradigm and of shifting one
Answer:
Explanation:
A paradigm shift is a major change in the concepts and practices of how something works or is accomplished.
A paradigm shift very often happens when new technology is introduced that radically alters the production process of a good or service.
Although the idea of paradigms has been around for quite some time, the concept was explored by physicist and philosopher Thomas Kahn Kuhn.
For and experiment to produce useful data what must happen
Answer:
It must be repeated several times
Explanation:
what does evaporation produces?
Answer:
water vapor
Explanation:
A liquid turning into a gas is evaporation. It is how water gets from the surface of the Earth to the atmosphere.
Evaporation plays a significant role in the energy exchange that results in atmospheric motion, affecting weather and climate in the Earth-atmosphere system.
What do rabbit, deer, and squirrel have in common?
Answer: A nucleus and fur, eyes, limbs, a mouth, a spine, a nose, lungs, heart, organs, liver, vains, blood probably more
Explanation:
Answer:
they can live in the forest.
they drink water.
they breath.
they bleed.
they can see.
they can jump.
they can eat.
they only eat plants.
they have fur.
they can be the same color.
they can be small.
they all run.
they all make noise.
they can make baby's.
they can sleep.
I'm so tired why am I here... just to suffer?
A flap of elastic cartilage that acts as a switch between the trachea and the esophagus
two types of organisms that appear in the climax community are
Answer:
Plants, animals and, fungi.
Explanation:
Through the process of ecological succession in the development of vegetation in an area over time, have reached a steady state.
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Which tenet of the cell theory is being demonstrated by the graph below? A.) cells can never be destroyed B.) cells are the smallest unit of life C.) all living things are made of cells D.) cells come from existing cells
Answer:
The cell theory demonstrated by the graph above is that all cells come from pre existing cells.
Which of the following is an example of applied research?
A shoe company develops a new material that can better absorb impact for a new running shoe.
A scientist studies the way human cells react to changes in temperature to better understand how
people live in extreme climates.
A teacher leads her students though the dissection of a frog so they can study different organ
systems.
An astronomer is curious about telescope lenses and builds a lens that is a composite of several
different materials.
Answer:
The example is "A scientist studies the way human cells react top changers in temperature to better understand how people live in extreme climates"
In a population of frogs, there is a dominant allele H that improves the survival of eggs in moderately dry conditions compared to the wild-type and recessive h allele. Imagine that climate change causes the environment where these frogs live to become more dry. Individuals with the drought-resistant eggs on average have 21 viable offspring per frog per generation, whereas those without that phenotype on average have only 12. If we start off with genotype frequencies of .02 HH, .03 Hh, and .95 hh, what is the average excess fitness of the H allele?
Answer:
8.55
Explanation:
I n the year1908, these two men Godfrey Hardy and Wilhelm Weinberg gave a specification of the relationship between the frequency of genotype and frequencies of allele that should occur when such a population is in equilibrium
p²+2pq+q² = 1
we have,
p² = 0.02
p = √0.02
such that frequency of H is = 0.1414
2pq = 0.03
q² = 0.95
q= √0.95
such that frequency of h =0.9746
(21-12) * 0.95 =
8.55 frogs per generation
H and h will coexist.
What type of mutation would result (nonsense, missense, silent,
Frame-Shift)
Answer:
Nonsense missense silent
Type the complementary sequence to the following nucleic acid:
TAAGGC
Answer:
The ATTCCG
Explanation:
A and T are friends so when you get a sequence like TTA you change it to AAT
And C and G and friends so if you get CCG turn it to GGC
Which of the following does not lead to an increase in phytoplankton reproduction?
a.
increased nutrient availability
b.
increased sunlight
c.
increased oxygen levels
d.
increased levels of carbon dioxide
Please select the best answer from the choices provided
A
B
C
D
Answer:
(c) increased oxygen levels
Explanation:
edg 2020
Identify the following.
pistil
1 female part
2 neither male nor female part
3 male part
True or false adult stem cells are the best option for healing the widest variety of diseases
Answer:
true
Explanation:
ASAP ASAP BEING TIMED!!!!!! Which group of plants lacks true roots, stems, and leaves? Oseedless vascular plants nonvascular plants O nonflowering seed plants Oflovwering plants
Answer:
Nonvascular Plants
Answer:
Nonvascular Plants
Explanation:
hope this helps!:)
Muscles can contract because they are made of
-afferent neurons
-efferent neurons
-interneurons
-connector neurons
-glial cells
Answer:
effererent neurons signal muscles to contract
Muscles can contract because they are made of efferent neurons.
What are the types of neuron ?Neurons basic microscopic unit of nervous system which is responsible for carrying information to different parts of the body by using electrical and chemical signals and coordinate all of the necessary functions of life.
It has three parts such as Soma or cell body which receives information and contain the cell’s nucleus, Dendrites a thin filament which carry the information from other neurons to the soma, Axon is a long projection that carries information from the soma and sends it to other cells.
Neurons involve in impulse transmission can be presynaptic neuron which emits the nerve impulse and the postsynaptic neuron receives this impulse.
Neurons can be Sensory neurons which carry the information from the sensory organs like skin, eyes, ears, nose and Motor neurons, Interneurons form a bridge between two neurons.
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Which of the following describes the last step in the life of a Large Star? *
A. small star is formed in the center of the shrinking cloud. The star begins to do fusion.
B. Once the Large star expands into a Super Red Giant, it explodes.
C. black hole forms with so much gravity that not even light can escape it.
D. Cloud of gas and dust that starts to shrink because of Gravity.
Answer:
A. small star is formed in the center of the shrinking cloud. The star begins to do fusion
Explanation:
neurons are brain cells. where would new neuron come from
A bacteria
B non-living matter
C other cells
D food
Answer:
The answer is C!
Explanation:
3
What effect of the disappearance of the otters on the diet of the glaucous-winged gulls?
Solid gold is denser than liquid gold. Do you think the atoms in liquid gold are as closely spaced as are the atoms in solid gold?
Acid rain is rain that carries unusually high acids that can break down rocks. This is an example of a __________ interaction.
A) atmosphere and geosphere
B) hydrosphere and chronosphere
C) chronosphere and biosphere
D) geosphere and chronosphere
E) hydrosphere and geosphere
Answer:
E
Explanation:
Rain is water=Hydrophere
Rocks=geosphere
Which quantity does a light-vear measure? distance speed time volume
Answer:
speed is the answer
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Filipino po, pa help po plssss need lang po
Answer:
1. Basket
2. Batya
3. Damit
4. Saranggola
5. Ballpen
di ako sure sa una at pang lima pero sabi ni ate tama naman daw :))
