Answer:
See the answer below
Explanation:
The best explanation would be that both Na and the amino acid lycine are simultaneously diffusing (in bound form) from the outside to the inside of the cell.
Considering the Na alone, one would see that the concentration outside the cell decreased in equal amount (15 mM) as the increase in the intracellular concentration of the same molecule.
Also considering the amino acid alone, the extracellular concentration increased by the same magnitude (5 mM) as the decrease in the intracellular concentration of the same molecule.
Hence, it could only be that both molecules bind together and diffused from the region of higher concentration (outside of the cell) to the region of lower concentration (inside).
what do you think the most important property of life is and why
Answer:
i think discovery
because people are curious
and curiosity is an important reason to live
no one wants to live in vain
Greetings from Turkey
Explanation:
GOOD LUCK ツ
Answer:
Water
Water is life. Without water, we would be dehydrated and our body would not perform well.
According to evolutionary theory, species that exist today are the result of a
slow, continuous change of living things over time. Why is this considered to
be a theory and not a law?
A. A law is based on mathematical calculations. Evolutionary theory
is a description based on observations.
O B. A law is supported by extensive research. Evolutionary theory is
an educated guess.
O
C. A law describes natural events but does not attempt to explain
them. Evolutionary theory is an explanation of how living things
have changed over time that is well supported by scientific
evidence.
O D. A law has been proved with scientific evidence. Evolutionary
theory may change when new evidence is found that does not
support the theory.
Answer:
It's answer could be A aur B
Explanation:
not sure but I know that this theory is given by dar VIN
An anaerobic metabolic pathway that results in the production of two net ATPs per glucose plus two pyruvic acid molecules is glycolysis True False
Answer: True.
Explanation:
Glycolysis is a process that occurs in the cell cytoplasm, in which a 6-carbon glucose molecule is cleaved into two 3-carbon pyruvate molecules. Two molecules of ATP (Adenosine triphosphate, a molecule that acts as a source of energy to perform biological processes.) and two molecules of NADH are also obtained. It is a metabolic pathway responsible for oxidizing glucose in order to obtain energy for the cell. It consists of a series of consecutive enzymatic reactions, and when pyruvate is obtained, it continues to be used in other metabolic pathways in order to continue delivering energy to the organism. Glycolysis takes place both in the absence and presence of oxygen, so it is defined as an anaerobic process. Therefore, the final destination of the products obtained in glycolysis will depend on the conditions of the environment in which it is found, which will determine the metabolic pathway to be followed (i.e., whether oxygen is available or not). In the absence of oxygen, glucose will not be completely oxidized to carbon dioxide and water, generating fermentative products (lactic acid in animals and ethanol in yeast) producing only two net ATP molecules. In the presence of oxygen, the pyruvate obtained during glycolysis enters the Krebs cycle (to produce energy in usable form as ATP or GTP) and then undergoes oxidative phosphorylation (the process by which ATP is formed as a result of electron transfer from NADH or FADH2 to oxygen via a series of electron transporters) producing a net gain of between 36-38 ATP.
Dangerous organisms that can grow in a variety of environments and are capable of producing toxic substances are known as:
Answer:
Bacteria
Explanation:
Bacteria are the dangerous organisms that can grow in a many different environments and are capable of producing toxic substances which can harm other organisms. This bacteria has the ability to survive in the most extreme environment present near the volcanoes. There are about 30,000 species of bacteria that can live in a variety of environments. There are also some bacteria that is beneficial to humans, animals and plants but they are less in number.
Mammals are a large group of animals that includes humans, apes, dolphins, bears, bats, cats, and much more. Which statement can be made about this information? All mammals use echolocation to find food. Some mammals use echolocation to avoid obstacles. All mammals use walking as their primary means of transportation. Some mammals need to find food to survive.
Answer: B
Explanation:
Just did the test
The statement that can be made about the information is: "Some mammals need to find food to survive."
What are Mammals?Mammals are a diverse group of animals that are found all over the world and come in many different shapes, sizes, and types.
All mammals share certain key characteristics, including the fact that they are warm-blooded, have hair or fur, and feed their young with milk produced by their mammary glands.
While the information given in the first sentence provides a list of mammals, it does not provide any information about their specific behaviors or characteristics, such as the use of echolocation or means of transportation.
However, the statement that "some mammals need to find food to survive" is true for all mammals, as food is a basic necessity for the survival of all members of this animal group.
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somebody help. . ways of propagation of plant materials for planting.
Answer:
These seven methods include: seed propagation, cutting, layering, division, grafting, budding, and tissue culture technique.
Explanation:
The major methods of asexual propagation are cuttings, layering, division, budding and grafting. Cuttings involve rooting a severed piece of the parent plant; layering involves rooting a part of the parent and then severing it; and budding and grafting is joining two plant parts from different varieties.
Question in the photo
Answer:
C
Explanation:
From reading what the process is, I think the answer should be C. The definition always says that you get energy from a chemical reaction and the products are CO2 and water. That can only mean that you have a hydrocarbon burning.
Chemically it looks like
C6H12O6 + 6O2 ====> 6CO2 + 6H20
Pharmacokinetics and pharmacodynamics of a new formulation of an investigational drug most likely refers to which clinical phase of a study in humans?
Answer:
The correct answer is - Phase I.
Explanation:
Clinical phase are group of stages in which scientists or researchers conduct various experiments with a health intervention to get enough evidence for a process to use as a medical treatment. Clinical research is conducted on medical devices, drug candidates, and vaccine candidates.
In the phase I, in this phase intervention takes place in human subjects. These subject usually observed until several half-lives of the drug have passed. This phase is designed to assess the tolerability, pharmacokinetics, safety (pharmacovigilance), and pharmacodynamics of a drug
How many kingdoms are in the modern system of classification?
Answer:
There are 6 kingdoms
Explanation:
According to the modern classification there are six kingdoms a these include kingfom archaebacteria, eubacteria, protista, fungi, Monera, plantae and animalia
Which of the following do all living things share?
A. The same shape
B. The same organs
C. The need to breathe
D. The same elements
Answer:
D.
Explanation:
Most living things need oxygen to survive. Oxygen helps organisms grow, reproduce, and turn food into energy
A meiotic error occurred during gamete formation, resulting in an egg that has 24 chromosomes. If that egg is fertilized by a normal sperm, how many chromosomes will be in the zygote
Answer:
47 chromosomes
Explanation:
Meiosis is a kind of division that reduces the chromosome number of the daughter cells by half i.e. 2n - n. It occurs only in reproductive cells to produce sex cells or gametes. In humans, meiosis occurs to produce gametes (egg and sperm) that have 23 haploid chromosomes.
N.B: Somatic human cells have 46 chromosomes
According to this question, a meiotic error occurred during gamete formation, resulting in an egg that has 24 chromosomes. If that egg is fertilized by a normal sperm i.e. sperm with 23 chromosomes. A zygote that posseses (23 + 24) = 47 chromosomes will be produced.
A eukaryote is a cell with a nucleus and membrane-bound organelles.
O True
O False
Answer:
True
Step by step explanation:
An open circuit means that
Answer:
An open circuit is one where the continuity has been broken by an interruption in the path for current to flow. ... An open switch is one without continuity: current cannot flow through it. A closed switch is one that provides a direct (low resistance) path for current to flow through.
Explanation:
I hope this helps you!
What happens when many water molecules come into contact with one another? Explain.
Answer:
When the oxygen atoms of different water molecules come together, they repel. When the hydrogen atoms of different water molecules come together, they repel.
Hope this helps
_____ are members of the domain Eukarya.
Archaebacteria
Viruses
Bacteria
Fungi
Answer:
Fungi are members of the domain Eukarya. Cells of fungi contain a nucleus which allows them to be members of this domain
Explanatio
True or false: Antiviral drugs prevent penetration into a host cell, block transcription and translation, and prevent maturation of viral particles.
Answer:
true
Explanation:
because anti viral drugs stop the maturiy of the virus spreading faster so they supress it
All of the following are examples of geological features EXCEPT
ridges
valleys
bridges
waterfalls
Answer: The correct answer is bridges
Explanation: Confirmed correct
PLEASE HELP!!! Give two forms of evidence for evolution that can be found in the fossil record (where animals have changed from simple to more complex.)
Answer:
Forms of fossil records can inlude the carcasses of animals and the structure of plants. These records can compare the advancements of creatures over a long period of time.
Explanation:
The further an animal or plant is burried underneath the soil, it is most likely that it lived much longer ago than a layer above it. The theory of evolution suggests that animals are always changing and adapting to their surroundings. For instance, millions of years ago, a dog like mamal existed but over time they grew accustomed to the water, developing fins flippers and eventually developed features similar to what we expect in whales today.
Plants, on the other hand, may have been much larger than the size they are today due to the excess of oxygen present in the atmosphere. Therefore, when they are fossilized scientists can realize that plants have come a long way in the tree of evolution.
punto de vista sobre la ley de mendel
Answer:
Las leyes de Mendel son leyes que describen la herencia de rasgos hereditarios. Las leyes forman la base de la genética clásica. Asumen que cada individuo posee dos alelos para el mismo rasgo y los recibe al azar de los cuatro alelos diferentes de los padres. El fenotipo (apariencia física) del individuo depende de cuál de los dos alelos es dominante y cuál es recesivo. Dado que los individuos pueden transmitir ambos alelos a su descendencia, la descendencia incluye tanto individuos con fenotipo dominante como recesivo.
At room temperature, Mercury exist in the liquid state true or false
Answer:
True
Explanation:
Both Mercury and Bromine exist in the liquid state at room temperature.
Using what you know about the theory of plate tectonics, which type of rock would you expect to be older?
Question 10 options:
Oceanic crust
Continental crust
List the negative impacts of human activities on vegetation?
Answer:
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water. These negative impacts can affect human behavior and can prompt mass migrations or battles over clean water.
Explanation:
Gene flow is one way that the gene pool of a population can change. In which
of these situations would gene flow occur?
A. Individuals move from one population into another.
B. Mutations in the buds on a tree cause some of its leaves to curl.
o
C. A dog breeder uses artificial selection to get healthier puppies.
D. A disturbance causes a random change in allele frequencies.
Answer:
A because one of the key terms is the transfer of alleles from one population to another
It is impossible for sperm to be functional (able to fertilize the egg) until after ________. Group of answer choices
Answer:
The answer is "they undergo capacitation"
Explanation:
Sperm migrate through uterine contractions and the energies of its flagella to the uterine tube. In sperm motility, reverse peristalsis is engaged in the uterus and uterine tubes. For a sperm cell to fertilize an egg, it takes approximately 24 hours. The surface of the egg changes as the sperm penetrates the egg, therefore no sperm is allowed within. The kid is fully genetic, including whether it's a boy or a girl at the time of fertilization. Until they are trained it is difficult for sperm to be working.
Darwin’s finches evolved on an island. What is the main reason that islands often provide good examples of evolution?
They have many niches.
They have many organisms that live on them.
They allow for automatic biogeographic isolation.
They allow for many variations to exist in species.
Answer: c) They allow for automatic biogeographic isolation.
The main reason that islands often provide good examples of evolution that they allow for automatic biogeographic isolation. The correct option is C.
What is evolution?Transition in the heritable traits of biological communities over time is referred to as evolution.
These traits are gene expressions that are passed down from parent to progeny during reproduction.
They have resulted in significant gains in standard of living, public welfare, wellness, and protection.
They have altered our perceptions of the universe and of ourselves in relationship to the world around us. One of the most fundamental concepts in modern science is biological evolution.
They are well-known for evolving different beaks that are suited to different food types, such as large seeds as well as invertebrates, enabling them to occupy different niches.
Thus, the correct option is C.
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1. the movement of water into area with high concentration of dissolved solutes in order to equal out the solute concentration is
a) concentration
b) diffusion
c) osmosis
d) blood oxygen level
What is the difference between the exchange of gaseous during respiration and
photosynthesis.
Answer:
Photosynthesis doesn't occur at night. When there is no photosynthesis, there is a net release of carbon dioxide and a net uptake of oxygen. ... the rate of photosynthesis is higher than the rate of respiration. there is a net release of oxygen and a net uptake of carbon dioxide.
Peritoneal dialysis uses which type of cell transport?
Answer:
Peritoneal dialysis involves diffusion and osmosis through the highly vascularized peritoneal membrane.
how would hemoglobin content differ in a person living in philadelphia compared to someone living in denver
Answer:
The correct answer is - the difference in altitudes.
Explanation:
The hemoglobin in the person of Denver who lives at a higher altitude than the person who lives in Philadelphia will be much higher. This is due to the fact that at higher elevation or altitude atmospheric pressure decreases that causes hemoglobin to stick to the RBCs and that results in less oxygen level in the body.
To compensate for this low level of oxygen levels hemoglobin content need to be higher in people living at a higher elevation.
The muscle fibers within muscle cells are divided into myofibrils, which are further divided into _____, the contractile units of muscles.
Answer:
the answer is sarcomeres
