Answer:
Answer b
Explanation:
Have a great day!
How much heat is needed to raise the temperature of 50.0g of water (4,182J/kgC) by 25.0C
Answer:
Q = 5227.5 J
Explanation:
Given data:
Mass of water = 50.0 g
Temperature increase by = ΔT = 25°C
Specific heat capacity of water = 4182 J/Kg.°C
Heat required = ?
Solution:
(50.0 g×1 Kg/1000 g=0.05 Kg)
Formula:
Q = m.c. ΔT
Q = amount of heat absorbed or released
m = mass of given substance
c = specific heat capacity of substance
ΔT = change in temperature
Q = 0.05 Kg ×4182 J/Kg.°C × 25°C
Q = 5227.5 J
Describe what happens during the entire cell cycle as well as the stages of mitosis.
Answer: i gotchu
Explanation: The duplicated chromosomes are split up and distributed.
Hopefully, this helps you.
Answer:
I gotcha!
Explanation:
The cell cycle consists of interphase and the mitotic phase. During interphase, the cell grows and the nuclear DNA is duplicated. Interphase is followed by the mitotic phase. During mitotic phase, duplicated chromosomes are segregated and distributed into daughter nuclei.
What is the anammox reaction, and when does it occur in the nitrogen cycle?
Anammox (anaerobic ammonium oxidation), which is a reaction that oxidises ammonium to di-nitrogen gas using nitrite as the electron acceptor under anoxic conditions, was an important discovery in the nitrogen cycle.
The nitrogen cycle's anammox reaction takes place when nitrogen compounds are converted back into atmospheric nitrogen gas during the denitrification phase.
Thus, In order to avoid the buildup of too much nitrogen (such as nitrates and nitrites) in the environment, which can result in water pollution and other ecological issues, denitrification is an essential phase in the nitrogen cycle.
Low oxygen conditions, such as sediments in wetlands, wastewater treatment facilities, and oxygen-depleted regions of oceans, are where anammox bacteria carry out the anammox process.
In the end, this process aids in maintaining the balance of nitrogen in ecosystems and preventing nitrogen pollution by naturally removing excess nitrogen molecules from these habitats.
Thus, The nitrogen cycle's anammox reaction takes place when nitrogen compounds are converted back into atmospheric nitrogen gas during the denitrification phase.
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Mitosis in a cancer cell can be compared to a runaway train that is racing along without signals and control points.
The above statement that Mitosis in a cancer cell can be compared to a runaway train that is racing along without signals and control points is True.
What is Mitosis?Replicated chromosomes are divided into two new nuclei during the cell cycle phase known as mitosis. Mitosis, a form of cell division, produces genetically identical cells with a preserved chromosome count. As a result, equational division is another name for the mitotic process.
Mitosis occurs exclusively in Eukaryotic cells.
Every organism goes through mitosis differently. Animal cells, for instance, go through "open" mitosis, in which the nuclear envelope ruptures before the chromosomes separate, whereas fungi go through "closed" mitosis, in which the chromosomes divide inside an intact cell nucleus.
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Answer as many as u can
Answer:
8Aa
BABA8Ab
AACC8Ac
CBDRicketsIt is recommended that children eat foods high in calcium and iron as a way to reduce the accumulation of lead in their cells and enzymes. Explain why this is a scientifically valid recommendation.
After ovulation, how does the ovum get from the ovary to the uterus?
It is swept into a fallopian tube by fimbriae.
The muscle contractions of peristalsis move the ovum through the fallopian tube.
Tiny hairs called cilia help to guide the ovum through the fallopian tube.
All of the above
After ovulation, the ovum is swept into a fallopian tube by fimbriae. Then, the muscle contractions of peristalsis move the ovum through the fallopian tube. Lastly, tiny hairs called cilia help to guide the ovum through the fallopian tube. The answer is All of the above.
Ovulation is the process by which a woman's ovary releases a mature egg, also called an ovum or oocyte, into the fallopian tube. This typically occurs once a month, around day 14 of a 28-day menstrual cycle, although this can vary depending on the individual.
After ovulation, the ovum (also known as an egg) is swept into a fallopian tube by fimbriae, which are finger-like projections at the end of the tube. The muscle contractions of peristalsis, which are rhythmic waves of muscle contractions, move the ovum through the fallopian tube. Tiny hairs called cilia, which line the inside of the fallopian tube, also help to guide the ovum through the fallopian tube towards the uterus.
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Why do muscles work in pairs
Answer:they only pull in one direction
Explanation:
Answer
Skeletal muscles only pull in one direction. For this reason they always come in pairs. When one muscle in a pair contracts, to bend a joint for example, its counterpart then contracts and pulls in the opposite direction to straighten the joint out again.
How much work does an elephant do while moving a 50 N circus wagon 20 m?
Answer:
The elephant did 4000 N·m or 4000 J or 4 kJ of work
Explanation:
which is not a transition point where the cell cycle control system regulates progresssion through the cell
The G0 phase is not a transition point where the cell cycle control system regulates progression through the cell.
This phase represents a state of rest where cells exit the cell cycle and enter a quiescent state. Unlike other stages of the cell cycle, G0 is not regulated by the cell cycle control system, and cells can remain in this phase for an indefinite period.
The other transition points in the cell cycle, including the G1/S checkpoint, the G2/M checkpoint, and the metaphase checkpoint, are all regulated by the cell cycle control system to ensure proper progression through the cell cycle.
The three main transition points in the cell cycle control system are the G1 checkpoint, the G2 checkpoint, and the M checkpoint (or the spindle checkpoint). These checkpoints ensure the proper progression and division of cells. "DETAIL ANS" is not related to the cell cycle control system or its checkpoints.
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the market price of a pendrive is Rs.650. if a discount 10% is allowed, find the selling price of the pendrive
Our Current Eon is divided into 3 Eras. List them from oldest to youngest.
The Phanerozoic, the eon of visible life, is divided into three broad periods, primarily on the basis of characteristic assemblages of life forms: the Paleozoic (541 million to 252 million years ago), the Mesozoic ( 252 million to 66 million years ago) and Cenozoic (66 million years ago to present).
What is our Current Eon?Phanerozoic is the geological period spanning about 541 million years from the end of the Proterozoic (which began about 2.5 billion years ago) to the present day. Although life clearly arose at some point, probably quite early, in the Archean eon (which lasted 4 billion to 2.5 billion years ago), it was not until the Phanerozoic that the rapid expansion and evolution of forms occurred, filling the various ecological niches available. The key to this great Phanerozoic expansion seems to lie in the evolution of plants capable of carrying out the process of photosynthesis and thus releasing free oxygen into the atmosphere.
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What is the location and function of mitochondria
Answer:
mitochondria are in cells.
Explanation:
The mitochondria create the energy used throughout the cell, called ATP.
Answer: Mitochondria is the powerhouse of the cell. Generates majority of the ATP of the cell. They are found in all body cells and located in the cytoplasm.
The picture represents a protein in the stomach being broken down into individual amino acids.
A protein being broken down into individual amino acids.
I CANT GET THE PHOTO
Which is mixed with proteins to break them into amino acids?
villi
enzymes
saliva
fat
Answer:
saliva
Explanation:
it is a chemical that's helps in digestion
Answer:
Enzymes
Explanation:
i need help examining karyotypes.
Karyotyping is a type of genetic testing. It looks at the size, shape and number of chromosomes in a sample of cells from your body. Chromosomes are located within the nucleus, the command center of the cell. Chromosomes contain your genes.
Genes contain information called DNA that controls how we look and how our bodies work.
You inherit chromosomes from your parents. Normally, all cells (except eggs and sperm) have the same set of 46 chromosomes.
Chromosomes are classified into 23 pairs. Each pair has two chromosomes, one for her from each parent. Certain genetic disorders can develop if the cell
-Whole or part of a chromosome is missing
-Do you have an extra chromosome or extra piece of chromosome
Karyotyping checks the chromosomes in the cell as follows:
Check if you have the complete set of 46 chromosomes. Having too many or too few chromosomes can cause serious problems with health, growth, and normal development.
Down syndrome (extra chromosome 21) and Turner syndrome (missing X chromosome).
Look for changes in the structure of chromosomes such as:
Damaged, missing or extra parts. These changes can lead to a variety of problems, depending on which chromosome is affected. However, some chromosomal changes do not cause problems.
Certain chromosomal problems are present from birth. Chromosome problems can also develop in certain cells after birth. These problems can lead to certain types of cancer.
Other name:
genetic testing, chromosomal testing, chromosomal studies, cytogenetic analysis.
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do grizzly bears or polar bears have better adaptations for changing environment?
Explanation:
polar Bears have better adaptation in the changing environment
Explanation:
The polar bear's life cycle is closely tied to sea ice. Polar bears rely on the ice to travel, hunt seals, breed, and in some cases, den. Scientists believe polar bears are unlikely to survive if ice-free periods exceed their fasting ability (220 days), especially in areas that lack alternate marine mammal prey.
Polar bears are strong swimmers and divers, a characteristic that allows them to swim from one ice floe to the next. But there’s a limit to how far they can swim. Long swims are especially dangerous to young cubs.
Cómo se forman los fósiles
Explanation:
Los fósiles se forman a través de varios tipos de fosilización: mineralización, carbonización, momificación, y fundición y moldes. El proceso más común es el de mineralización, en el que los minerales de aguas subterráneas se filtran en las partes duras del organismo, como huesos y conchas, y los petrifican o los convierten en piedra.
explain the role of the followinghormone during homeostasis 1.insulin
Answer:
Insulin enables blood glucose to enter cells, where they use it to produce energy. Together, insulin and glucagon help maintain homeostasis, where conditions inside the body hold steady. When a person's blood sugar is too high, their pancreas secretes more insulin.
Insulin allows the cells in the muscles, fat and liver to absorb glucose that is in the blood. The glucose serves as energy to these cells, or it can be converted into fat when needed. Insulin also affects other metabolic processes, such as the breakdown of fat or protein.
in the 1940s, scientists had concluded that the genetic material was most likely either ________ or ________
Answer:
hdjdjfjjfjfjfjjfjgjfjfjgjgj hrjdjjrjddjdjfjjdjdjdjd hehehehe sjejejej jejejeeje jejrrheh ennrnr rjrjnnn. eneej ejennene enenen rnenenn jrjrrr jdrhbe jeheb ehehhe heheh jejebjej jejerj hejej rjrjrnrbrbnrnb ejrjrjb jehr rjr. hr rbr rbr t rj r rhrrn rrr rrnnr rr b jrjrb rnrb rbr r
Explanation:
jeejehejejjrrjjrje enejejejjejjejeeeehr. rjejjrjrjrje
How does water use affect land ?
Answer:
All land uses have an effect on water quality, whether positive or negative. ... In built-up areas with pavement and buildings, little rainfall soaks into the soil, causing high runoff, stream flows with high peaks and low flows in between, and poorer water quality.
Explanation:
Hope this helped! Have an AMAZING day/night!!
Answer:
Surface-Water Contamination and Land Use A variety of natural and human factors can affect the quality and use of streams, lakes, and rivers, known as surface water. One of the most important factors that can affect the quality of a surface-water body is the land use within its watershed.
Explanation:
What is the difference between a food chain and food web
Answer:
A food chain is a sequence of organisms through which nutrients and energy pass as one organism eats another. A food chain must start with energy from the sun, have a producer (an organism that makes food by itself with energy from sun), and have at least one consumer eat and gain nutrients from another consumer or a producer. At the end of the food chain, there must be a decomposer to break down the dead animals into nutrients, which is beneficial for soil. Additionally, there must be arrows to indicate the flow of energy travelling from one organism to another. An example of a food chain would be:
sun -> roses -> caterpillar -> crows -> garter snakes -> mushrooms
Energy source: Sun
Producer: Roses
Consumer: Caterpillar
Secondary consumer: Crows
Tertiary consumer: Garter snakes
Decomposer: Mushrooms
A food web is basically an interconnection of multiple food-chains in a graphical representation to see which animal eats what and their niche (role they play in an ecological community). Here's an example of a food web (not mine, credits to creator):
Cells divide at different rates. Skin cells divide __________. Liver cells divide ____________. Bone marrow, stomach and intestine lining cells divide _____________.
a. never, continuously, sometimes
b. very often, sometimes, continuously
c. continuously, sometimes, never
d. sometimes, never, continuously
Question 2
What are the 2 key molecules that control and coordinate the cell cycle?
a. DNA and RNA
b. CDK and Cyclin
c. Cyclin and mitochondria
d. Apoptosis and CDK
Question 3
A cell dies and the cell next to it enters G1 phase. Which activity would happen next?
a. Chromosome duplication
b. Cell destruction
c. Cell growth
d. Chromosome separation
Question 4
At the end of G1 in Checkpoint 1, what 2 things are checked in order for the cell to proceed into the S phase1?
a. cell growth and DNA check
b. cell growth and chromosome duplication
c. cell division and DNA check
d. cell growth and cell division
Question 5
At the end of S phase in Checkpoint 2, what 2 things are checked in order for the cell to proceed into the G2 phase?
a. chromosome duplication and cell division
b. cell growth and chromosome duplication
c. cell division and DNA check
d. cell growth and cell division
Question 6
At the beginning of mitosis in Checkpoint 2, what is checked in order for the cell to proceed mitosis?
a
cell growth
b
cell division
c
chromosomes are attached to spindles
d
chromosome duplication
Question 7
What happens when the cell “supervisors” CDK and Cyclins do not work correctly?
a
The cell can become cancerous.
b
The cell is completley normal.
c
Damaged cells are destroyed.
d
The damage in the cell is repaired.
Question 8
Which of these must occur during S phase of the cell cycle so that two daughter cells can be produced during M phase?
a
The DNA must be replicated.
b
The cell membrane must be expanded.
c
The cytoplasm must be separated.
d
The chromosomes must be joined.
Question 9
This final process of cellular division where the cytoplasm is divided into two cells is called
a
Cytokinesis
b
Meiosis
c
Mitosis
d
Interphase
Question 10
Which of the following activities occurs in between the two gap phases (G1 and G2)?
a
Replication of DNA
b
Growth of the cell
c
formation of mitotic spindle
d
breakdown of nuclear membrane
Question 11
If a dog (canis familiaris) has 78 chromosomes in each of its body cells, how many chromosomes will be in each daughter cell after mitosis?
a
78
b
39
c
26
d
156
Question 12
The stages of mitosis occur in which of the following orders?
a
A-P-M-T
b
T-A-M-P
c
P-M-A-T
d
M-T-P-A
Question 13
Before DNA can replicate the DNA molecule separates into two strands, which are then used to construct 2 identical strands of DNA. This process ensures that the
a
parent cells use little ATP
b
mitochondria are genetically identical to chloroplasts
c
cytoplasm is in equillibrium
d
daughter cells are genetically identical to parent cells
Question 14
Which of the following organelles organizes the movement of chromosomes during mitosis?
a
endoplasmic reticulum
b
lysosome
c
centriole
d
peroxisome
Question 15
G1 Phase, S Phase, and G2 Phase are all parts of -
a
Mitosis
b
Interphase
c
Cytokinesis
d
Telophase
Answer:
umm sorry umm i just forgot what was the answer
Explanation:
I WILL MARK U BRAINLIEST
In a certain flower, Red (R) is dominant over white (r). Complete the Punnett Square for the
following cross:
Mother: rr
Father rr
What percentage of offspring will be Red?
What percentage of offspring will be White?
Answer:
25 cuz thers rrr then R
Explanation:
PLZ HELP 40PTSThe table below shows the mass of some horse fossils.
Horse Fossil Record
Horse Fossil Mass (kg)
A 80
B 270
C 150
D 50
Ancient horses had less mass than present-day horses. The mass of the present-day horse is about 500 kilograms. What is the correct order of evolution of the horse starting from the youngest fossil?
1. A C D B
2.B D C A
3. D A C B
4. B C A D
Answer:
D and 4
Explanation:
Answer:
Its D and the last one is 4
Explanation:
BIOLOGY PEOPLE HELP!!!!
sure lemme edit it.
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is when you give your friends list on your bike you have to pedal harder and faster to keep the same speed acceleration as you had when you’re on your bike alone is for a second or third law
One of the fruit fly crosses in Lab 11 was wingless females x white-eyed males. In this question, you will diagram the reciprocal cross: white-eyed females x wingless males. 1. Show the P cross and expected genotypic and phenotypic ratios of the F1 generation. (3 pts) 2. The F1 progeny are self-crossed. What fraction of the female F2s are expected to look wild- type?
1) P cross and expected genotypic and phenotypic ratios of F₁ generation :Cross White-eyed female Xw+ w+ Wingless male Xw YXwXw+ Xw YXXw+ Xw Y ; 2) Therefore, 3/4 or 75% of the F₂ females are expected to have a wild-type.
1. The P cross and expected genotypic and phenotypic ratios of the F₁ generation are as follows: P cross: White-eyed female x Wingless maleWhite-eyed female is XXw+ w+ (Female with white eyes, but with normal wings)Wingless male is Xw Y (Male with normal eyes, but no wings)Gametes produced by white-eyed female are Xw+ and Xw Gametes produced by wingless male are Y F₁ progeny: Punnett square for the F1 progeny is as follows: Cross White-eyed female Xw+ w+ Wingless male Xw YXwXw+ Xw YXXw+ Xw Y
Phenotypic ratio: All F1 females with normal wings and white eyes and F₁ males with normal wings and red eyes Genotypic ratio: All F₁ females Xw+ Xw and all F₂ males XwY₂. The F₁₁ progeny are self-crossed. The expected fraction of the female F₂s that are expected to look wild- type is 3/4 (75%).
The results of this cross can be obtained by taking gametes of the F₁ female, Xw+ Xw, and gametes of the F₁ male, Xw Y. The Punnett square for the F₂ cross can be set up as follows: Gametes: Xw+ Xw (F1 female) Xw Y (F1 male)Xw+ XwXw XXw+ Xw YXwXw YXw+ Xw Y
Phenotypic ratio: Wild-type females (75%), Wild-type males (25%)
Genotypic ratio: 1:2:1 (25% Xw+ Xw+, 50% Xw+ Xw, 25% Xw Xw)Therefore, 3/4 or 75% of the F₂ females are expected to have a wild-type.
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The strains and media used in a bacterial conjugation are described below. After you have reviewed the information, match up the strains with their growth properties. Strains: CS4020: Flac trp/Alacatrp: Leu",Strs (this strain is not able to make its own leucine and is sensitive to Streptomycin: contains a plasmid with genes for making tryptophan and utilizing lactose) CS402R: F. Alacatrp, Stra: Trp, Str" (this strain is not able to make its own tryptophan or utilize lactose and is resistant to Streptomycin) Media: GM glucose minimal salts GMS - glucose minimal salts + streptomycin GML - glucose minimal salts + leucine GMTS - glucose minimal salts + streptomycin + tryptophan Procedure CS402D and CS402R are mixed together in a mating experiment and the F' plasmid is transferred from the donor to the recipient. Recipient bacteria that have taken up the F' factor (called exconjugants) constitute a new strain which has growth requirements that differ from the two "parental strains. We will name this new strain CS402E. Procedure CS402D and CS402R are mixed together in a mating experiment and the F'plasmid is transferred from the donor to the recipient. Recipient bacteria that have taken up the F'factor (called exconjugants) constitute a new strain which has growth requirements that differ from the two "parental" strains. We will name this new strain CS402E. Can grow on GMS CS402D . Can grow on GM CS402D Can grow on GML CS402R Can grow on GMTS CS402E
The strains and media used in a bacterial conjugation are described below. After you have reviewed the information, match up the strains with their growth properties. Strains: CS4020: Fla trp/Alacatrp : Leu", Strs (this strain is not able to make its own leucine and is sensitive to Streptomycin: contains a plasmid with genes for making tryptophan and utilizing lactose)CS402R: F.
Alacatrp, Stra: Trp, Str" (this strain is not able to make its own tryptophan or utilize lactose and is resistant to Streptomycin)Media: GM glucose minimal salts GMS - glucose minimal salts + streptomycin GML - glucose minimal salts + leucine GMTS - glucose minimal salts + streptomycin + tryptophan The recipient bacteria that have taken up the F' factor (called exconjugants) constitute a new strain which has growth requirements that differ from the two "parental" strains. We will name this new strain CS402E. Can grow on GMS CS402D. Can grow on GM CS402D. Can grow on GML CS402R. Can grow on GMTS CS402E.Conjugation is the transfer of genetic material, including DNA and plasmids, between bacteria, resulting in recombinant genetic material and genetic diversity. It's one of the several methods bacteria use to swap genetic material, along with transduction and transformation.
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Which best summarizes the process of protein synthesis?
A. RNA instructs DNA to make proteins.
B. DNA unzips, resulting in the formation of two protein molecules.
C. RNA moves the DNA code to the ribosomes for protein synthesis.
D. DNA makes proteins in the nucleus.
Answer:
RNA instruct dna to make protien
The statement (A) best summarizes the process of protein synthesis.
What is protein synthesis?
Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus.
Moreover, protein biosynthesis (or protein synthesis) is a core biological process, occurring inside cells, balancing the loss of cellular proteins (via degradation or export) through the production of new proteins. Proteins perform a number of critical functions as enzymes, structural proteins or hormones.
Therefore, ribosomes are the sites in a cell in which protein synthesis takes place. Cells have many ribosomes, and the exact number depends on how active a particular cell is in synthesizing proteins.
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