What is the age of a meteorite if potassium-40 decayed from 80 g to 10 g? The half-life of potassium-40 is 1.3 billion years.
1.3 billion years
2.6 billion years
3.9 billion years
5.2 billion years

Answer:

Channel proteins can aid in the facilitated diffusion of substances by forming a hydrophilic passage through the plasma membrane through which polar and charged substances can pass.

Explanation:

Answer: By forming a continuous protein pathway across the membrane, these proteins enable specific hydrophilic solutes to cross the membrane without coming into direct contact with the hydrophobic interior of the lipid bilayer. Carrier proteins and channel proteins are the two major classes of membrane transport proteins.

Answer:

DNA replicates in both mitosis and meiosis, Mitosis occurs during growth and development, In meiosis the number of chromosomes reduce by half, Mitosis occurs in all organisms, Meiosis occurs in organisms that sexually reproduce, and chromosomes stay the same in Mitosis.

Explanation:

Mitosis: Occurs during growth and development, Occurs in all organisms, and The number of chromosomes remains the same

Meosis: The number of chromosomes reduces by half, and Occurs in organisms that sexually reproduce

Both: The DNA is replicated.

1. The DNA is replicated: Both Mitosis and Meiosis. In both processes, DNA replication occurs before the division of cells, ensuring that each daughter cell receives a complete set of genetic information.

2. Occurs during growth and development: Mitosis is the process responsible for the growth, repair, and development of multicellular organisms by producing identical daughter cells.

3. The number of chromosomes reduces by half: Meiosis involves two divisions that result in the reduction of chromosome number by half, leading to the formation of gametes (sperm and egg cells) with half the usual number of chromosomes.

4. Occurs in all organisms: Mitosis is a fundamental process occurring in various organisms, ranging from unicellular to multicellular, for growth, tissue maintenance, and asexual reproduction.

5. The number of chromosomes remains the same: In mitosis, the daughter cells have the same number of chromosomes as the parent cell, maintaining the chromosome count.

6. Occurs in organisms that sexually reproduce: Meiosis is specific to organisms that reproduce sexually, as it produces genetically diverse gametes that contribute to the variability of offspring.

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Answer:

Protista Protists

Explanation:

Protista. Protists are single-celled and usually move by cilia, flagella, or by amoeboid mechanisms. There is usually no cell wall, although some forms may have a cell wall.

Generalized anxiety is characterized by constant worry over minor and catastrophic events. It involves persistent concern about different issues.

Generalized Anxiety is a mental disorder associated with persistent concern about different issues.

The issues that may cause generalized anxiety may be, among others, money, family, work and health.

In addition, this mental disorder (generalized anxiety) is accompanied by a series of physical signs such as constant muscle tension and fatigue.

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Answer:

4 meters

Explanation:

Answer:

The Moon

Explanation:

High tides and low tides are caused by the moon. The moon's gravitational pull generates something called the tidal force. The tidal force causes Earth—and its water—to bulge out on the side closest to the moon and the side farthest from the moon. These bulges of water are high tides.

Answer:

it's caused by the gravitational  forces from the moon.

Explanation:

grew up at the beach

hope this helps

Answer:

Answer: glucose I think?

Explanation: I’m not sure but it should be more efficient.

Answer:

In liver and muscle cells, epinephrine stimulates the release of glucose from glycogen by inhibiting glycogen synthesis and stimulating glycogen breakdown.

Explanation:

My aunt works in the medical field, so I asked her. Hope this helps whoever needs it.

my friend told me that one his friend uncles was in a car crash not in a bad one but it did send his uncle flying it hit his head and there was alot of blood people thought he was dead but after like a few hours in the doctor he just opened his eyes but still couldnt move

Answer

Enzymes are proteins, which have a specific 3D tertiary structure, with a specifically shaped active site. The active site can only bind one substrate to form an enzyme-substrate complex, so can therefore only catalyse one reaction.

Cellular transport refers to the flow of substances into or out of the cell across the cell membrane.

When the student places a cell that is 95% water inside of a solution that is 100% water, the cell will achieve net movement and if water continues to enter, it swells up and burst.

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I get why u were confused cause the way they word some of the answers literally doesn't make any mf sense

my best answer would be the 3rd one (sediment that is sorted by size due to the changing velocity of the water)

Explanation:

because when sediments are well sorted their sizes are similar

Answer:

triglyceride

Explanation:

the most common lipid.

Answer:

Gravity makes the Earth constantly pull us down. ... The force of gravity depends on the mass (weight) of each object. The force with which two objects attract each other is proportional to their mass and decreases rapidly the moment we separate them.

Explanation:

hi i'm mexican long live mexico

Answer:

the closer objects are to each other, the stronger their gravitational pull is. Earth's gravity comes from all its mass. All its mass makes a combined gravitational pull on all the mass in your body.

Explanation:

Answer:

.

Explanation:

Answer:hahahahah really why thats so funny

Explanation:

Answer:

B

Explanation:

... I think :] it could also be D

PMAT acronym stand for four phases of mitosis prophase, metaphase, anaphase, and telophase.

PMAT has been known as an acronym that is used for a transporter protein Plasma membrane monoamine transporter as well as the four stages of the mitosis cell cycle. On the basis of the reference given in the form of an image, it is most like the four stages of mitosis are Prophase, Metaphase, Anaphase, and Telophase.

Prophase is the first stage of mitosis and followed by the metaphase, anaphase, and ends with telophase. Telophase is followed by cytokinesis. On the basis of the reference given in the form of an image, it is most like the four stages of mitosis are Prophase, Metaphase, Anaphase, and Telophase.

Therefore, PMAT acronym stand for four phases of mitosis prophase, metaphase, anaphase, and telophase.

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Answer:

carbon cycle, neutral, and decomposition

Answer:

They all have cytoplasm and cell membrane

That's all that I could find

Answer:

The believe the correct answer is option E.

The relatively large number of new mutations that occur in the human genome in each generation is tolerable because: most of the human genome is noncoding DNA, so few mutations affect human proteins. Therefore, the correct option is D.

A human genome refers to the complete set of sequences of the nucleic acids that are present in the humans. The human genome contains a relatively large amount of noncoding DNA, which does not code for proteins and is therefore less subject to selective pressures.

Option A, humans have excellent protein repair mechanisms, and Option C, humans have excellent DNA repair mechanisms, are partially true, but do not fully account for the tolerability of new mutations in the human genome.

Option B and E are also not true, as changes in human proteins have relatively small effects on their cells' structures and functions, is not entirely true. Therefore, the correct option is D.

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Answer:

When you sit in your chair, your body exerts a downward force on the chair and the chair exerts an upward force on your body. There are two forces resulting from this interaction - a force on the chair and a force on your body.

Explanation:

Answer:

The types of waves that emanate from and earthquake are the body waves (P-waves and S-waves), and the surface waves. The surface waves travel along the suface, and are are the slowest, even though they do the most damage in an earthquake. While the P-waves travel the fastest through solids, liquids, and gases. S-waves, however only travel through solids.

Hope that helped! <3

Answer: Incorrectly paired nucleotides that still remain following mismatch repair become permanent mutations after the next cell division.

Explanation: If they replicated than the entire thing would copy that and would be permanent.