What are the three reasons why cells divide? What are the chromosome number in diploid and haploid cells? What are the phases of mitosis? What are the phases of the cell cycle?
Answer:
What Are the 3 Reasons Why Cells Divide?
•Repair of damaged tissue.•Growth of an organism.•Replace old and dying cells.What are the chromosome number in diploid and haploid cells?
•Humans have 46 chromosomes in each diploid cell. Among those, there are two séx-determining chromosomes, and 22 pairs of autosomal, or non-séx, chromosomes. The total number of chromosomes in diploid cells is described as 2n, which is twice the number of chromosomes in a haploid cell (n).What are the phases of mitosis?
•Mitosis is understood to involve five phases, based on the physical state of the chromosomes and spindle. These phases are prophase, prometaphase, metaphase, anaphase, and telophase.What are the phases of the cell cycle?
The cell cycle is composed of interphase (G₁, S, and G₂ phases), followed by the mitotic phase (mitosis and cytokinesis), and G₀ phase.Explanation:
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Define Internal and external fertilisation
Answer:
see the file attached!!
How does conservation benefit the environment?
Select the correct answer.
Tapeworms enter the human stomach through food. They feed on nutrients in the stomach and cause infections in the body. What does this association depict?
Answer:
Tapeworms are a parasite of humans
Explanation:
Tapeworm infection is caused by ingesting food or water contaminated with tapeworm eggs or larvae. If you ingest certain tapeworm eggs, they can migrate outside your intestines and form larval cysts in body tissues and organs (invasive infection).
TTA , the complementary (matching) strand of DNA would be?
Answer:
AAT
Explanation:
A pairs with T
C pairs with G.
Thus TTA pairs with AAT
According to complementary base pairing in DNA, the complementary strand of DNA would be AAT.
What is DNA?DNA is a hereditary material which is present in human beings as well as all other living organisms. Every cell which is present in an organism's body has DNA which is the same. Most of the DNA is situated in the cell's nucleus and small amount of it can be found in the cell's mitochondria as well.
Information which is stored in DNA is stored as codes made up of four chemical bases namely, adenine, thymine , cytosine and guanine.Human DNA consists of 3 billion bases .The order of the bases determines information which is required for building and maintaining an organism.
DNA bases are capable of pairing up with each other. Adenine pairs with thymine and guanine pairs up with cytosine .Each base is also attached to a sugar molecule and a phosphate group. A base, phosphate sugar are together called as nucleotides.
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If an object leaves Earth's gravitational field and floats in space, which one of the following will change?
A. The object's mass.
B. The object's weight.
C. Neither the mass nor the weight of the object will change.
D. Both the object's mass and weight.
Answer: B. The object's weight
Explanation:
Weight depends on gravity and is a measure of how much force gravity exerts on an object. Mass is the measure of how much matter is in an object and doesn't depend on gravity. In space, mass doesn't change but weight does.
A. Is ready to be fertilized
B Matures in an ovary
C Travels along a fallopian tube
D Attaches to the wall of the uterus
Answer:
what's the question I don't see a question
Explanation:
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What is the difference between the nutrition of birds and humans?
Answer:
birds have a digestive system that includes gizzards in which the food goes to get crushed to smaller peices as humans do not
Explanation:
Combustion is associated with which type of renewable energy
A: Biomass energy
B: Tidal energy
C: Hydro-energy
D: Wind energy
Answer:
A.It is the Biomass energy
Which is an unseen factor that affects the carrying capacity of the ocean?
An unseen factor that affects the carrying capacity of the ocean is the space as it affects the whilst a species now not has area to live, the populace can not increase.
What are the element of the carrying capacity of the ocean?The key elements influencing the marine ecological wearing potential in 2016 are those 4 indicators, particularly the monetary density of coastline, remedy charge of city home sewage, wetland region in step with capita, and the share of environmental safety funding in GDP.
We determined that growing habitat length and enhancing habitat fine each accelerated populace-wearing potential. Similarly, we determined that each element additionally accelerated the populace boom charge.
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A zygote is best described as _____.
A. a complete set of chromosomes
B. a sperm rejected by a hardened egg
C. the first diploid cell after fertilization
D. an egg just before fertilization
Electrons in an outer or
shell determine the chemical reactivity of atoms.
Answer:
The number of electrons in the outermost shell of a particular atom determines its reactivity, or tendency to form chemical bonds with other atoms.
Explanation:
Electrons in an atom's outermost shell determine the chemical reactivity of atoms; this is true as the electrons in an atom's outermost shell, also known as its valence electrons, play a crucial role in determining the chemical reactivity of the atom.
What is an electron?The chemical reactivity of an atom depends on its ability to gain or lose electrons, which is determined by the number of valence electrons in its outermost shell. The valence electrons are the ones that are involved in chemical bonding, which is the process by which atoms combine to form molecules. Atoms with incomplete valence shells tend to be more reactive because they have a strong tendency to gain or lose electrons to achieve a stable configuration. A stable configuration is achieved when an atom's outermost shell is completely filled with electrons.
Hence, Electrons in an outer shell determine the chemical reactivity of atoms; this is true as the electrons in an atom's outermost shell, also known as its valence electrons,
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can anybody help me
pic below
Answer:
Option D- A long, sticky tongue
Since the tounge is sticky all the ants stick to it and Anteater eats them.
Answer:
D
Explanation:
A long, sticky tongue helps the anteaters to stick its tongue long enough into mounds containing ants/termites which get stuck onto its tongue, thereby helping it get food.
can anybody answer this, please
pic below
Answer:
Option C Stripes
Explanation:
this technique is known as camouflage
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11. How many grams each of resorcinol and hexachloro-
phene should be used in preparing 2 pounds of an
acne ointment that is to contain 2% resorcinol and
0.25% of hexachlorophene?
12. How many milligrams of procaine hydrochloride
should be used in preparing 60 suppositories, each
weighing 2 grams and containing 1/4% of procaine
hydrochloride?
Answer:
7 grams
Explanation:
How many milligrams of procaine hydrochloride
should be used in preparing 60 suppositories, each
weighing 2 grams and containing 1/4% of procaine
hydrochloride?
Which of the following statements is FALSE?
1. Natural selection can be seen working in organisms alive today
2. Natural selection results from an organisms needs
3. Natural selection drives evolution in populations
4. Natural selection is driven by environmental pressures
Answer:
1.natural selection can be seen working in organisms alive today
Which of the following is true about the efficiency of energy transfer in an ecosystem?
a. The more energy the organism requires, the more efficient the energy transfer.
b. All energy transfers have the same efficiencies.
C. The less energy the organism requires, the more efficient the energy transfer.
d. The most efficient energy transfers are in large, warm-blooded animals.
Please select the best answer from the choices provided
O A
OB
OC
OD
Answer:
Option C.............
At an incineration facility, 90% of the garbage's volume is lost. The last 10% is in the form of ____.
A: Plasma
B: Ash
C: Sludge
D: Steam
Answer: C
Explanation:
Because, when garbage and dirty water are mixed, it turns into mouldy garbage juice (Sludge).
What would probably happen if something killed all the
producers in the area?
Energy efficiency = useful energy output/total energy input x 100(%)
If a power plant uses 100 units of energy to create electricity and the output is 5 units, where does the 95% of the energy input go?
A: Lost as heat
B: Lost as gas
C: Escapes the system as potential energy
Answer:
no
Explanation:
No, a real machine can't have an efficiency of 100%. An efficiency of 100% means that there is no loss and the output energy (or work) of the machine is equal to input energy (or work). In real machines, there is always some loss of energy to overcome friction and air resistance
What is organic waste of animals and plants to enrich soil called?
Answer:
Compost, Manure, Organic Matter, Loam
Explanation:
I'm guessing that Organic matter will be the correct answer, but I gave you a few options
Part B What are two strengths and two weaknesses of your model?
Answer:
strength: it provides raw material for plants and major component of food.
weaknesses: it increases earth's temperature and change the habitat.
Explanation:
The diagram shows the carbon cycle which is important cycle present on the earth. This carbon is present in carbondioxide form which is used as a raw material by plants in order to make their own food. This carbon is also present in different organic compounds. When its concentration increases in the atmosphere, the temperature of the atmosphere increases and many areas are not suitable to live for many plants and animals.
What type of vibration is created by S waves?
A. Propagation
B. Tension
C. Compression
D. Shearing
Why is not feasible to raised plantation on Mansonia altissima
Answer:
what types of research questions are used in the study ? exlpain your answer
Question 2 of 10
How did oxygen first enter Earth's atmosphere?
Answer: It wouild be biological proceses
Under capitalism, what is the determining factor in success? A. the individual B. the government C. the social order
3During menstruation, the body sheds
Answer:
due to less proteins in a body
Answer:
During menstruation, the lining of the uterus (endometrium) is shed
How deep is the root system of a giant sequoia?
4 meters (13 feet)
20 meters (60 feet)
40 meters (130 feet)
80 meters (260 feet)
The sequoias root system is wide spreading, but shallow. There is no taproot. A mature sequoia's roots can occupy over 1 acre of earth and contain over 90,000 cubic feet of soil.
Select the correct answer.
Tapeworms enter the human stomach through food. They feed on nutrients in the stomach and cause infections in the body. What does this association depict?
Answer:
Tapeworms are a parasite of humans
Explanation:
Tapeworm infection is caused by ingesting food or water contaminated with tapeworm eggs or larvae. If you ingest certain tapeworm eggs, they can migrate outside your intestines and form larval cysts in body tissues and organs (invasive infection).
Soil texture is determined by the amount and distribution of mineral particles.
Please select the best answer from the choices provided
T
F
Answer:
The answer is trueeeeee
Explanation:
Answer:
t
Explanation: