Answer:
A cell is a mass of cytoplasm that is bound externally by a cell membrane. Usually microscopic in size, cells are the smallest structural units of living matter and compose all living things. Now put that into your own words.
Explanation:
Sexual reproduction allows for more genetic diversity than asexual reproduction.
options:
True
False
Answer:
True.
Explanation:
What are the parts of a leaf (plant cell) involved in photosynthesis?
What organisms does lactic acid fermentation occur in.
Answer:
It occurs in Yogurt Bacteria
Colchicine is a toxin that binds to tubulin proteins and prevents microtubules from elongating. What effect might this have on dividing cells
The effect Colchicine might have on dividing cells is that the duplicated chromosomes might not be able to segregate into daughter nuclei.
Colchicine is an alkaloid that attaches to tubulin and prevents it from polymerization to microtubules. As we know that Microtubules are a component of the cytoskeleton of a cell that aids in molecular mobility inside the cell.
During cell division, chromatin condenses into chromosomes, which are then connected to microtubules. The chromosomes are separated into daughter cells by microtubules.
When these cells are treated with colchicine, tubulin polymerization to microtubules may not occur, and the chromosomes containing daughter nucleic might not be separated.
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How can we make larger drawings ? Can someone tell me the guidelines please help
Answer:
you should have skills of drawing observe the diagram
Answer:
by using a GRID to scale
Explanation:
step by step
which is not an abiotic factor that could affect a population?
Answer:
it is not the abiotic power my beautiful kind sir
Explanation:
How can we preserve animal resources
Explanation:
Top 10 ways to save wildlife
Adopt. From wild animals to wild places, there's an option for everyone. ...
Volunteer. If you don't have money to give, donate your time. ...
Visit. Zoos, aquariums, national parks and wildlife refuges are all home to wild animals. ...
Donate. ...
Speak Up. ...
Buy Responsibly. ...
Pitch In. ...
Where are you most likely to find ocean water with a high level of dissolved
gases?
A. Mid-latitudes in the Pacific Ocean
B. Near the equator in the Atlantic Ocean
C. Near the equator in the Pacific Ocean
D. Near the polar regions
HELP ITS DUE SOON
Seawater has many different gases dissolved in it, specially nitrogen, carbon dioxide and oxygen. It exchanges these gases with the atmosphere to keep a balance between the ocean and the atmosphere.
What is atmosphere?An atmosphere is defined as the layers of gases surrounding a planet or other celestial body. Earth's atmosphere is comprises of about 78% nitrogen, 21% oxygen, and 1% other gases.
Dissolved oxygen and carbon dioxide are important for marine life. Marine plants use dissolved carbon dioxide, sunlight and water to make carbohydrates through the process of photosynthesis.
Cold water holds more gas than warm water and seawater with low salinity holds more gas than high salinity water. Deep water, that has a high pressure, holds more gas than shallow water.
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Why doesn't facilitated
diffusion require energy from
the cell?
A. The protein channels provide the
energy required.
B. Facilitated diffusion does require
energy
C. The movement is from a high
concentration to a lower concentration.
in
lightly
Answer: C
Explanation: This is right because the movement reciares a cell in order to move
Answer: it's C for sure!
Explanation:
What is the word for the skin having microscopic holes.
Which types of species tend to dominate river ecosystems.
Answer:
fish species
Explanation:
The diagram displays a box of normal DNA. The second box displays mutated DNA. Compare the mutated DNA with the normal DNA and identify the type of mutation that has occurred.
A) Substitution mutation.
B) Chromosomal mutation.
C) Deletion mutation
D) Frameshift mutation.
What controls basic functions such as breathing, heart rate, and pulse?
A.cell body
B.spinal cord
C.frontal lobe
D.brain stem
which process is response for gas exchange in the lungs
Answer:
Diffusion is the spontaneous movement of gases,Explanation:
Answer:
External respiration
Explanation:
Explain why there are substances on earth then are listed on the periodic table of elements
Answer:
Elements are pure substances with only one type of atom
Explanation:
Elements are pure substances with only one type of atom
Answer:
There are more substances on Earth than are listed on the periodic table of elements because substances are combinations of the elements. Elements are pure substances with only one type of atom. When two or more elements are combined, compounds are formed. This allows more substances to be created on Earth.
Explanation:
The work of such researchers as Broca, Fritsch, Hitzig, and Ferrier demonstrated localized brain function, which was somewhat similar to the predictions made by ________.
The work of Broca, Fritsch, Hitzig, and Ferrier demonstrated localized brain function, which was similar to predictions made by phrenologists. Phrenology is a pseudoscience.
Phrenology is a pseudoscience aimed at measuring bumps on the skull to predict personality traits.
Eduard Hitzig and Gustav Fritsch demonstrated that electrical stimulation of specific areas of the cerebral cortex could trigger movement.
Broca's area is an area located in the frontal part of the left brain hemisphere discovered by Paul Broca, who observed how this area has a fundamental function for the generation of speech in humans.
Finally, David Ferrier was a neurologist who discovered a series of motor fields within the cerebral cortex of monkeys.
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Location Six: Select two events that you predict will be observed. If I explore two oceanic plates at a transform boundary, then I will observe: __________________________faultsocean formationmountainsvolcanoesisland chainsseafloor spreading
Answer: Volcanos and faults
Explanation:
EZ
What is meant by a biological system
Biological System - A biological system is a group of entities or organs that interact to complete a task. It's a biological unit that makes up a body or an organism.
Hope this helps!!
please help asap asap asap
Answer:
true
Explanation:
because it's helps the sunlight
Given the number of blood vessels in the retina, why do you suppose that you are not able to see them normally
Answer:
You can't see the blood vessels themselves because vision depends on a process that makes it impossible to see things that are stationary with respect to the retina. Light receptors in the retina respond only to changes in light reaching them, not to a steady image.
Have a great day! :D
What caused the formation of the moons layer
Answer:
when an object smashed into early Earth. .Explanation: no explanation just the answer
Which of the following statements about weather patterns near mountain ranges is correct?
a. The leeward side of a mountain range tends to be wetter than the windward side.
b. The windward side of a mountain range tends to be wetter than the leeward side.
c. There is more cloud cover on the leeward side.
d. More vegetation grows on the leeward side than the windward side.
B.the windward side of a mountain range tends to to wetter than the forward side
Dr. Martino's lab has been able to demonstrate that if they excessively stimulate a postsynaptic cell, it causes it to release a _____ transmitter that travels back to the presynaptic cell and modifies it.
1. How has the Exxon Valdez oil spill
impacted the environment?
Answer:
The oil killed and injured seabirds, sea otters, harbor seals, bald eagles, orcas and other wildlife. Eventually, oil from the spill affected more than 1,000 miles of Alaska's remote and rugged coastline.
Other Info That Might Help:
Image result for How has the Exxon Valdez oil spill impacted the environment? Environmental And Economic Impacts Prince William Sound had been a pristine wilderness before the spill. The Exxon Valdez disaster dramatically changed all of that, taking a major toll on wildlife. It killed an estimated 250,000 sea birds, 3,000 otters, 300 seals, 250 bald eagles and 22 killer whales.
Explanation:
I have answered This before and I got it right.
Hope this helps! :)
What two types of organic molecules make up carbohydrates?
Answer:
carbon and hydrogen
Explanation:
Have a nice day
How to find number of alleles present in a population.
Answer:
Count how many times the allele appears.
Explanation:
Dividing also becomes part of it.
which division of the nervous system controls the radial muscles of the eye?
Answer:
sympathetic.
Explanation:
Identify the phases of mitosis during which sister chromatids are no longer attached by a centromere.(1 point)
prophase and telophase
anaphase and telophase
prophase and anaphase
metaphase and anaphase
Answer:
anaphase and telophase
Answer: Anaphase and telophase
Explanation:
The first two steps (prophase and metaphase) are the phases of detachment of the centromere.
Then the last 2 phases, are the ones with out the centromere.
!! Hope that helps !!
Identify the answer choice that correctly orders the types of cells from least to most differentiated.(1 point)
neuron → multipotent stem cells → pluripotent stem cells → totipotent stem cells
totipotent stem cells → multipotent stem cells → pluripotent stem cells → neuron
totipotent stem cells → pluripotent stem cells → multipotent stem cells → neuron
multipotent stem cells → totipotent stem cells → pluripotent stem cells → neuron
Answer:
totipotent stem cells → pluripotent stem cells → multipotent stem cells → neuron.
Answer:
Option 3.
totipotent stem cells → pluripotent stem cells → multipotent stem cells → neuron
Explanation:
The development of the various stages of stem cells in the embryonic stage is described here:Totipotent stem cells: Right after the mitosis of the zygote which results in the formation of two identical daughter cells, which are totipotent stem cells. Totipotent stem cells possess the ability to give rise to 220 different types of cells in the embryo including the placenta.Pluriopotent stem cells: These types of cells possess the ability to change into any type of cell in the body like blood, muscle, etc. It is formed at the embryonic stem cell stage.Multipotent stem cells: These stem cells have the ability to change into specialized cell such as forming different organs in the body. It occurs as the pluriopotent cell develops in the embryo.Neuron: As the multipotent cell has the ability to form a specialised cell it gives rise to the heart, lungs, liver, etc. including neurons.for more information:
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which enzyme catalyzes the elongation of a dna strand