Answer:
Eukaryotic cells are more complex than prokaryotes, and the DNA is linear and found within a nucleus. Eukaryotic cells boast their own personal "power plants", called mitochondria.The complex eukaryotic cell ushered in a whole new era for life on Earth, because these cells evolved into multicellular organisms.
Explanation:
Answer:
The ability to maintain different environments inside a single cell allows eukaryotic cells to carry out complex metabolic reactions that prokaryotes cannot. In fact, it's a big part of the reason why eukaryotic cells can grow to be many times larger than prokaryotic ones.
:-
One theory that may explain how eukaryotes became so complex is the endosymbiotic theory. This theory proposes that organelles like mitochondria and chloroplasts were once free-living prokaryotic cells that began to live within a larger host cell.
The tails of the cell membrane are ____________ while the phosphate heads are ___________.
Hydrophilic, Hydrophobic
Hydrophobic, Hydrophilic
Flexible, Hydrophobic
Water Loving, Flexible
Explanation:
The tails of the cell membrane are __hydrophobic__ while the phosphate heads are __hydrophilic__.
I hope the following image helps to further explain the answer.
The tails of the cell membrane are hydrophobic while the phosphate heads are hydrophilic. The correct option is B.
What is the structure of cell membrane?The phospholipid bilayer, which forms a stable barrier between two aqueous compartments, is the membrane's fundamental structure. These compartments are the inside and outside of the cell in the case of the plasma membrane.
The cell membrane, also known as the plasma membrane, is found in all cells and serves to separate the cell's interior from the outside environment.
The membrane of the cell is composed of a semipermeable lipid bilayer. The cell membrane controls the transport of materials into and out of the cell.
The heads (phosphate) are polar, whereas the tails (lipid) are non-polar. The heads, which form the outer as well as inner linings, seem to be "hydrophilic" (love water), whereas the tails, which face the cell membrane's interior, are "hydrophobic" (water fearing).
Thus, the correct option is B.
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How does independent assortment increase genetic variation in Meiosis?
Answer:
Independent assortment produce new combinations of alleles.
Explanation:
In meiosis I, crossing over during prophase and independent assortment during anaphase creates sets of chromosomes with new combinations of alleles. Genetic variation is also introduced by random fertilization of the gametes produced by meiosis. It results in gametes that have unique combinations of chromosomes.
What are 4 facts about Earth's outer layer? Subject: Science 7th grade Plate motion.
which enzyme pairs corresponding nucleotides to a preexisting dna chain in order to synthesize a new strand of dna?
Answer:
✓ DNA polymerase
Explanation:
What kinds of point mutations alter a gene's DNA sequence?Describe each of them.
Question 9
Which is a negative impact of destroying the rainforests?
The Animals woud be hurt
Explanation:
The environment would be bad to be destroyed for the animals in the rainforest.
Temperatures on Mars reach as high as 20 °C and fall as low as –140 °C. That temperature is colder than anyplace on Earth. Temperatures on Earth vary, but they stay within a range of –89 °C to 58 °C. Based on this evidence, which physical property is responsible for the greater range of temperatures on Mars as compared to those on Earth?
A. mass
B. axial tilt
C. thin atmosphere
D. period of revolution
Answer:
c
Explanation:
thin atmosphere
how many days can sperm live inside a woman’s body
Answer:
up to 5 days
Explanation:
this is the right answer
What the relationship between a glucose molecule and the products it makes during cellular respiration.
Answer:
During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water. Along the way, some ATP is produced directly in the reactions that transform glucose. Much more ATP, however, is produced later in a process called oxidative phosphorylation.
During cellular respiration, glucose makes water, carbon dioxide, ATP, lactic acid, and ethanol. In the absence of oxygen, ethanol and lactic acid are formed from the glucose.
What is glycolysis?
Glycolysis is a process in which glucose breaks down inside a cell. Glucose makes pyruvate as an end product in this process. In the presence of oxygen, glucose breaks down into pyruvate and proceeds to the Krebs cycle. In this process, ATP, water, and carbon dioxide are released.
In the absence of oxygen, glucose is converted into lactic acid and ethanol. This is called fermentation and produces only 2 ATP from glucose. This is called anaerobic respiration.
When oxygen is present from glucose, nearly 36-38 ATP are formed. Pyruvate converts into acetyl CoA, and it enters the Krebs cycle. A complete oxidation of glucose takes place in the presence of oxygen.
Hence, in the presence of oxygen, 36-38 ATP is released from glucose, and in the absence of oxygen, lactic acid and ethanol are produced with 2 ATP.
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Problem: How do the levels of reproductive hormones influence the human menstrual cycle?
You'll be needing a graph paper and the data below because I don't know how to screen shot with computer and used this link as the image and please give me correct graphing and results please finish it all and Ill give brainiest and 30 points.
Progesterone levels rise during the luteal phase of the ovarian cycle and the secretory phase of the uterine cycle. Menstruation occurs just after LH and FSH levels peak. Menstruation occurs after progesterone levels drop. Estrogen levels rise before ovulation, while progesterone levels rise after.
what enzyme catalyzes the conversion of fructose-6-phosphate to fructose-1,6-bisphosphate?
major difference between positive and negative feedback loops?
Answer:
Negative feedback loop-keeps in check
Positive feedback loop- increases quality of another variable
Explanation:
What is a concentration of mineral fragments at the bottom of a streambed called? Choose the correct answer.
O nodule
O placer deposit
O native element
O hydrothermal solution
Answer:
B. Placer deposit
Explanation:
Quizlet called "7-1 Science Mineral Resources" with answers
Why does the brain of mammals keep track of the temperature of the skin and the blood?
Answer:
The thermoregulatory center in this gland regulates heat loss and production. This center is influenced by nerve impulses from receptors near the skin and the temperature of the blood flowing through it. When the environment is warm or hot, there are a variety of ways mammals stay cool..
Explanation:
Hope it helps you..
Y-your welcome in advance..
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The brain of mammals keeps track of the temperature of the skin and the blood so that they can regulate the cells and maintain homeostasis in the body relative to the outer environment.
What is the importance of homeostasis in the body?The body's homeostasis should always be maintained in order to keep the cells and organs active and able to perform their functions. Because the brain has different control centers, it keeps track of the skin and blood temperature because the brain can release different hormones depending on the situation. The lipid composition and arrangements of the cells change in the summer and the winter, and all these are possible due to the brain sending signals to cells.
Hence, the brain of mammals keeps track of the temperature of the skin and the blood so that it can regulate the cells and maintain homeostasis in the body relative to the outer environment.
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How is the aftermath of the children’s Halloween prank an example of the novel’s themes of prejudice and false suspicion? Book Name To Kill a Moking Bird
The novel shows the example of prejudice and false suspicion after the children made a joke on Miss Tutti and Miss Frutti Barber.
In the novel a situation is presented in which the naughty and evil children enter the Barbers' living room and make a joke by taking all the furniture to hide them in a cellar.
Later, when the Barber sisters find out, they blame (without having seen who it was) Syrian fur sellers saying:
Miss Tutti was sure that the fur sellers who had passed through town two days ago had stolen her furniture.They were brown, she said. Syrians.According to the above, the Barber sisters had prejudices and false suspicions against the Syrians because only on suspicion they accused them of the theft of their furniture, without them having committed this fact.
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What makes a successful Aquarium
Answer:
Im guessing animal control feeding the animals good glass and thickness also a strong bridge last is a passive shark
Explanation:
a scientist is studying the various prokaryotic and eukaryotic species found floating in a sample of water taken from a marine ecosystem. which cellular component will be found in the widest range of organisms in the sample?
what is the difference between the thermosphere and stratosphere
Answer:
Explanation:
The stratosphere starts just above the troposphere and extends to 50 kilometers (31 miles) high. The ozone layer, which absorbs and scatters the solar ultraviolet radiation, is in this layer. The thermosphere starts just above the mesosphere and extends to 600 kilometers (372 miles) high
Answer:The stratosphere starts just above the troposphere and extends to 50 kilometers (31 miles) high. The ozone layer, which absorbs and scatters the solar ultraviolet radiation, is in this layer. The thermosphere starts just above the mesosphere and extends to 600 kilometers (372 miles) high
Explanation:
Pls help click to see full image worth 30 pts
do predators control the prey or do the prey control the predators
the predators are wolves the prey are deer
Answer:
Explanation:the predators are predators and how they are predators is because they are predatrods
what would make the earth's plates stop moving
Answer:
Slab Resistance would make the earth's plates stop moving
Explanation:
Answer:
Brainiest plz and hope this answer helped let me know if you need any more help I am glad to help!
Explanation:
what would make the earth's plates stop moving?
If the earths mantel would be really cold then the earth's plates would stop moving.
The biotic factors of the North American ecosystem that influence lodgepole pine populations are
A.
fire, pine beetles and fungus
B.
clear cutting by lumber companies and -25 oC winter temperatures
C.
the mountain pine beetle parasite and fungus
D.
warm dry summers and cold wet winters
Answer:
B
Explanation:
im pretty sure
All of the following are examples of genetic drift EXCEPT:
A. A beetle gets stepped on B. A rabbit gets swept away by a tornado
C. An elephant drinks a protozoa living in a puddle D. A light colored moth does not camouflage on a dark
colored tree and gets eaten by a bird
C. AN ELEPHANT DRINKS A PROTOZOA LIVING IN A PUDDLE.
HOPE IT HELPS YOU
Why does a plant produce more sugar after summer?
Answer:
Sunlight = Energy
Explanation:
Plants have chlorophyll that uses sunlight from the sun to create energy.
The energy is then used to change carbon dioxide from the air into sugars like glucose. The plant transports sugars into the tissues like roots, flowers and fruits so it can grow.
Answer:
Plants have chlorophyll that uses sunlight to gather energy. The energy is then used to change carbon dioxide from the air into sugars like glucose and fructose. ... They transport sugars throughout the plant and supply it to tissues like roots, flowers and fruits that depend on this sugar to grow.
Explanation:
If the black horse is homeozygous, what is its genotype?
Answer:
the genotype is BB.
Explanation:
Select the correct answer.
Which is an advantage of sexual reproduction over asexual reproduction?
A. increased number of organisms and decreased genetic variationdecreased genetic variation
B. doesn’t require an organism to find a mate
C. increased genetic variation
D. decreased genetic variation and decreased number of organism
Answer:
C
Explanation:
the others look like the advantage of asexual reproduction
HELP PLS I NEED IT RN
You are given a compound that has a melting point of 560 C. You dissolve some of the compound in water and measure the pH of the resulting solution to be 11. You are told that the compound is either KCl, Ca(OH)₂, C₆H₁₂O₆, or H₂SO₄. Which of these compounds where you give? Explain.
Answer:
Ca(OH)² I think so..........
how do nonsteroid hormones differ from steroid hormones?
Answer:
Nonsteroid hormones act via signal transduction pathways and steroid hormones do not act via signal transduction pathways.
Explanation:
Most of the reactions by which energy from carbohydrates is released for use by the cell take place within the
A) Mitochondria.
B) Nuclei.
C) Ribosomes.
D) Vacuoles
Most of the reactions by which energy from carbohydrates is released for use by the cell take place within the MITOCHONDRIA. These organelles (mitochondria) are the energy centres of the cell.
Cellular respiration is a series of metabolic reactions by which the cell produces energy in the form of ATP by using the energy stored in the chemical bond of simple carbohydrates and oxygen.
Cellular respiration has three stages: glycolysis, the citric cycle and oxidative phosphorylation.
Glycolysis occurs in the cytoplasm, whereas the citric cycle and oxidative phosphorylation take place in the mitochondria.
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Answer:
A)mitochondria
Explanation: I will give you a easy explanation
Which of the following is a population?
Answer:
D. All of the fish, bacteria, and mammals that live in a lake (i think)