Answer:
If both glucose and lactose are both present, lactose binds to the repressor and prevents it from binding to the operator region.
Explanation:
Which step constitutes the power stroke of muscle contraction?.
Which phrase best describes the need for ion channels?
ions must be able to interact with the charged regions of the cell membrane
o ions need to be sheltered from interacting with the charged regions of the cell membrane
Oso nutrients may enter the cell
O so nutrients may exit the cell
Ion channels are specialized proteins in the plasma membrane that provide a passageway through which charged ions can cross the plasma membrane down their electrochemical gradient. The resulting ionic current, generated by the movement of charged ions through membrane channels, can be measured by patch-clamp methods.
Ion channels must be able to interact with the charged regions of the cell membrane so nutrients can enter the cell.
What are ion channels?
Ion channels are passages in the cell membrane that allow the passage of charged molecules such as
Sodium: Na+Potassium: K+Ions pass from one side to the other of the cell according to the electrochemical gradient. In other words, they go from a place with high concentration to one of low concentration. But to do this, they need to interact with the charged regions of the membrane, which are the ion channels.
Ions channels are one of the ways that nutrients enter the cell.
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Why is the percentage similarity in the gene always lower than the percentage similarity in protein.
Answer:
Synonyms in the genetic code exist and some species only use one synonym to get the same amino acid. The reason why the percentage is low in gene is because it does not involve a lot of processes compared to the proteins which undergo mRNA and tRNA to be coded as amino acids.
Explanation:
Direction: Look at the images below. Explain what is so amusing or funny about these cartoons? How are these images related? What is the focus of these cartoons?
The inference that can be deduced from both pictures is that the pictures simply talk about climate change and its impact.
What is climate change?Climate change simply means the ice melting, ocean warming, rise in sea level and the acidification of oceans.
In this case, the inference that can be deduced from both pictures is that the pictures simply talk about climate change and its impact.
The first picture is about the Santa that was in the North Pole melting and the second picture is about the impact of climate change on sharks.
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High-fat diets can play a part in the development of __________. A. Breast, colon, and pancreatic cancer B. Ovarian, bone, and skin cancer C. Skin, brain, and prostate cancer D. Pancreatic, skin, and colon cancer Please select the best answer from the choices provided. A B C D.
High-fat diets can play a part in the development of breast, colon, and pancreatic cancer. So, the correct option is A.
What do you mean by High-fat diets?A High-fat diet may be defined as a diet consisting of at least 35% of total calories consumed from fats, both unsaturated and saturated fatty acids.
High fat can be acquired from eating excess fatty compounds. There are a number of foods that ensure excess body fat content. Such foods are meat, eggs, and even milk and products that come out of such foods.
Therefore, High-fat diets can play a part in the development of breast, colon, and pancreatic cancer.
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Answer:
The answer is A :)
Explanation:
Which of the following do all organisms have in common?
Answer:
What Do All Organisms Have In Common? All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.
Explanation:
the remaining 16 elements must be?
answer explanation:
All group 16 elements combine with hydrogen to form hydrides. Acidic nature and bent shape decrease from water. The H-E bond length increases as the bond dissociation enthalpy decrease down the group. Thermal stability and reducing character also decreases because the H-E bond length increases down the group.
Question 2 of 10
What is the name of the planet next to the label A?
Solar System
A
EARTH
SUN
O A. Saturn
O B. Mars
OC. Venus
Answer:
C venus
Explanation:
This can be learnt as Mary's violet eyes makes John stay up nights
M-mercury
V-venus
E-earth
M-mars
J-jupiter
S-saturn
U-uranus
N-neptune
In RNA molecules, adenine is complementary to
Select one:
O a. thymine.
O b. guanine.
O c. uracil.
O d. cytosine.
In an example of pleiotropic genes, the flower color gene studied by Mendel affected ________ trait(s).
Answer:
two traits ,
Explanation:
In an example of pleiotropic genes, the flower color gene studied by Mendel affected a single trait.
Pleiotropy refers to a phenomenon where a single gene influences multiple, seemingly unrelated traits or characteristics in an organism. However, in this specific case of Mendel's flower color gene, it affected only one trait, which is the color of the flower.
Genes are the basic factors of inheritance. They are found in the DNA of all living organisms. They are responsible for transmitting genetic information from one generation to the next and play a crucial role in determining an organism's traits and characteristics.
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Which area of the stomach adjoins the small intestine?.
The pylorus is the answer. Hope this helps
________ is/are one of the main causes of evolution.
Mutations
Darwin
Niches
An acquired trait
Answer:
mutations
hope this helps
ANSWER ASAP BEING TIMED
which of the following is an example of species diversity
the number of people with brown eyes in a community
the different types of fish in a coral reef
the different sizes of beaks among woodpeckers
two kittens with stripes and three kittens without stripes
Answer:
2
Explanation:
Which of the stream types had a statistically lower macroscopic invertebrate species diversity than the seasonal streams?.
Intermittent streams have a statistically lower macroscopic invertebrate species diversity than the seasonal streams.
What are Intermittent streams?Intermittent streams are ecosystems where water flow is stopped at least twice in a given period of time.
Intermittent streams exhibit biodiversity that is different from other types of streams because species can not be adapted.
Intermittent streams are ecosystems that can exhibit specific species which are not found in seasonal streams.
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Which of these belongs to the four macromolecules of life.
lipids (fats & oil)
enzymes
fructose
oxygen
Answer:
lipids actually
Explanation:
because the four macromolecules of life are Macromolecules,
Carbohydrates, Proteins, and Lipid
What is the difference between a clade and a derived characteristic?
Answer:
A clade needs a derived characteristic. If mammals were a clade, their derived characteristic would be having hair.
How do the features specific to animal and plant cells influence their function?
Answer:
They are different but have many similarities
Explanation:
for example a plant cell needs chloroplasts to he able to photosynthesize and I huge vacuole while animal cells have many small vaccoules and not chloroplasts
Describe what else a deer gets from plants. Explain how this matter is cycled between plants and the deer. Why is this cycle important to their survival? Provide a 3-5 sentence paragraph explanation.
Answer:
big blrrd pooh sheisty
Explanation:
yes
Which of the following best describes pollution discharged by cruise ships? a. cruise ships only discharge sewage and liquid wastes. b. cruise ships discharge sewage, solid, liquid, and air pollution. c. it is illegal for cruise ships to discharge untreated sewage in the ocean. d. cruise ships do not discharge oil or petroleum waste. please select the best answer from the choices provided a b c d
Answer:
b. Cruise ships discharge sewage, solid, liquid and air pollution
Explanation:
hope this helps
According to question option "B" which is Cruise ships discharge sewage, solid, liquid, and air pollution.
How the cruise ship results in a large amount of pollution?Due to the existence of oil sometimes there are oil leaks which are the production of liquid waste. In complement to this, there is a large amount of sewage and solid waste which are left untreated and released into the seawater.
Thus, option "B" is correct.
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How do Antibodies help fight Infections/viruses and bacteria in our body
Answer:
The acquired immune system produces special molecules (known as antibodies) with the help of immune cell system that protects the body against a specific intruder. After the body has been exposed to the invader, cells called B lymphocytes produce antibodies. Antibodies remain in your child's system.
Which part of the respiratory system interacts with the blood to exchange gases?.
Answer:
Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them.
Would a human with enough food and water and oxygen in a suit survive a full close orbit around Earth? I would think not because of all the space junk, but thats the only reason I can think of.
Explanation:
except that, their first problem is how to drink the water and eat the food provided while at the same time taking in oxygen...
And the close orbit would either pull them towards earth resulting in a collision
or shoot them out of the orbit at insane speeds
in both case they will die..
as soon as they will enter the earth's atmosphere, they will be burned alive by the heat due to the friction between their body and the air around them when they will be in the process of collision.
even if they avoid all this, they will still either be burn to death or freeze to death on either side of the earth coz the suit is only suitable for a limited amount of time...
Choose the best option to complete the sentence.
Scientists worried that cloned animals would age rapidly because their cells contain _____ as old as the individual they were cloned from.
a. cytoplasm
b. RNA
c. proteins
d. DNA
Answer:
D DNA
Explanation:
I took the test and got it right
please help on these two pictures
Answer:
1.) D.
2.) A.
3.) C.
4.) Mutualism
5.) either parasitism or predator-prey
6) toxins
7) host
8)viruses
Which statement describes the solar feature labeled B?
Answer:
here is the pic so can someone answer the question I need help T-T!!!
Think about how acids and bases would affect the water quality in the two lakes. which set of ph data would you expect to see based on your observations? lake a: ph = 4.5; lake b: ph = 7.5 lake a: ph = 8.3; lake b: ph = 3.7 lake a: ph = 6.6; lake b: ph = 6.8 lake a: ph = 10.2; lake b: ph = 1.7
Answer:
7.5
Explanation:
Its neutral and testless
Water first-rate has significantly laid low with the presence of acid and base within the water. So answer is lake a: ph = 6.6; lake b: ph = 6.8.
The water isn't always precise for fitness whilst its exceptionally acidic or exceptionally basic. If the pH of water is almost impartial, this water is nice for consuming purpose. In the choice 3, each lake A and lake B has pH almost impartial so this water reasons no awful impact at the fitness of the human body. Highly acid water has low water first-rate because of the presence of metals which adversely have an effect on our body.
What is pH of lake water ?The pH degree of the water in rivers, lakes, and wetlands is critical to plant and animal life is 7.
Hence explained.
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An advantage to mendel working with purebred plants is.
Answer:
He would get a expected gene in a plant, for example. Purebred tall pea plants would most likely give off more tall plants, with little runts.
It gives a certainty to what you're doing, and getting more sellable/ useable products.
What the weakness of DNA Extraction??
Please help me
Thank you
Answer:
the weakness potential is for invasion of individual privacy.
Explanation:
Because a person's DNA reveals so much information about their physical state, it is sensitive information that must be carefully guarded.
how does the changing nature of water rights relate to the investigation phenomenon
Answer:
Natural disasters are caused due to different reasons like soil erosion, seismic activity, tectonic movements, air pressure, and ocean currents etc. Natural activities taking place in the earth's crust, as well as surface, are the main reasons for these disasters.
We are running out of water due to change in climate conditions like floods, droughts, sea level rising.
Reasons of water running out:Drought- The world’s changing climate has been linked to an increased incidence of droughts that results in increase demand of water supply.Sea level rising- Rising sea level increases the salinity of both surface water and ground water through salt water intrusion.Increasing population-About 70% of the world’s freshwater consumption is for agriculture and food demand is rising. The global population is increasing, which will increase global food demand and this will increase the water required for food production.you can learn more about this water changes here:
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The scar left on the seed coat after the seed has separated from its stalk is called the: a. Micropyle. B. Funiculus. C. Hilum. D. Suspensor. E. Integument
The scar left on the seed coat after the seed has separated from its stalk is called the: Hilum.