The relative age of a rock is
A. its age based on how much carbon-14 it contains.
B. its age compared with the ages of other rocks.
C. less than the age of the fossils it contains.
D. the number of years since it formed.

Answers

Answer 1

B. its age compared with the ages of other rocks.


Related Questions

How do you think the bacterial communities on the floor of the bay might be linked to it's producers and consumers?

Answers

The producers in the an ecosystem produce food while the consumers eat the food produce by the producers. The bacterial in the ecosystem decompose the dead plant and animal materials and make the nutrients inside them available for plant use.
The bacteria communities on the floor of the bay will decompose plants and animal materials found on the floor of the bay and convert them to humus which is very important for healthy growth in plants. Thus the bacterial communities help the plants to get the nutrients needed for growth. 
Final answer:

Bacterial communities on the ocean floor are linked to the bay's ecosystem as chemoautotrophs and decomposers, cycling nutrients and supporting higher trophic levels including fish that are important for fisheries.

Explanation:

The bacteria communities on the floor of the bay are crucially linked to the ecosystem's producers and consumers in several ways. For example, chemoautotrophs are a type of bacteria that act as producers in these environments. They utilize chemosynthesis to transform chemicals released by hydrothermal vents into energy, sustaining a food web that doesn't rely on sunlight. Moreover, bacteria contribute to the breakdown of organic matter and the cycling of nutrients, thus supporting plant growth, which in turn supports herbivorous consumers. Additionally, the bacterial metabolism products can feed other organisms in the ecosystem, including young fish and invertebrates that find shelter in biofilms and structured bacterial communities.

Diverse microbial communities are also important in transforming and recycling nutrients, which support higher trophic levels, including commercially important fish. Bacterial action on decomposing organic matter contributes to the fertility of environments, which indirectly benefits fishery production by enhancing the food supply and nursery areas for young fish. The complex matrices of biofilms and microbial communities provide food, shelter, and a place for interactions that are essential for the productivity and stability of marine ecosystems.

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The image below shows a type of human tissue. What is its main function? A. Binding organs and tissues together B. control and coordination C. Movement D. Protection

Answers

A. Binding organs and tissues together

Here's why:

The image shows a dense white fibrous tissue, which is characteristic of connective tissue.

Connective tissue is the most abundant tissue type in the body and primarily functions to support, connect, and bind other tissues and organs.

The dense fibrous appearance suggests it's a specific type of connective tissue called tendon, which connects muscles to bones and transmits the forces generated by muscle contraction.

Therefore, considering the image and the characteristics of connective tissue, especially tendons, binding organs and tissues together is the most accurate description of its main function.

The other options are less likely for the following reasons:

B. Control and coordination: This function is primarily associated with nervous tissue, which has a different appearance than the tissue in the image.

C. Movement: While tendons contribute to movement through their connection with muscles, their main function is not movement itself.

D. Protection: Some connective tissues provide protection, but the dense fibrous structure of tendons suggests their primary function is not directly linked to protection.

The main function of the type of human tissue depicted in the image is binding organs and tissues together.

Therefore, option A is correct

- Connective Tissue: The tissue shown in the image is likely connective tissue, which is characterized by cells dispersed within an extracellular matrix.

- Binding Organs and Tissues: Connective tissue functions primarily to bind, support, and anchor various organs and tissues together within the body.

- Structural Support: Connective tissue provides structural support to organs and tissues, helping to maintain their shape and integrity.

- Cushioning and Protection: Additionally, connective tissue often acts as a cushioning material, protecting delicate structures from mechanical stress and providing a barrier against pathogens.

Please HELP FAST!
Carbohydrates are made up of carbon, oxygen, and ___.

A. gold
B. hydrogen
C. copper
D. potassium

Answers

And they are made up of hydrogen as well. Hope this helps!
Carbohydrates are made up of carbon oxygen and hydrogen. b. Hydrogen

The ____ acts as a barrier which isolates the two sides of the membrane.

Answers

Final answer:

The cell membrane acts as a barrier that isolates the two sides of the membrane and separates the internal components of the cell from the extracellular environment.

Explanation:

The cell membrane, also known as the plasma membrane, acts as a barrier that isolates the two sides of the membrane.

The cell membrane is composed of a phospholipid bilayer, with hydrophobic lipid tails facing inward and hydrophilic phosphate heads facing outward.

It separates the internal components of the cell from the extracellular environment and regulates the movement of ions, proteins, and other molecules in and out of the cell.

How many ribosomes are actively synthesizing proteins at any instant in an
e. coli cell growing with a 45-min doubling time?

Answers

24 in doubling time .

Which substance is the most acidic?

Answers

Hope this helps says hydrogen ions in a souloutin
lemon juice!!!!!!!!!!

Rudolf Virchow is considered a key figure in the world of medicine, but he is best known for his Omnis cellula e cellula A key component to our current Cell Theory, which BEST describes Virchow's contribution to modern Cell Theory?
A) Cells are the basic unit of life.
B) Plant cells differ from animal cells.
C) All cells come from pre-existing cells.
D) Cells are the basic unit of structure and function in living things.

Answers

The correct option is C.
Rudolf proposed that all cells come from previously existing cells and this is one major part of the modern cell theory. He was also the one who introduced the discipline of cellular pathology, when he proposed that diseases do not affect the whole organism but they are usually located in a particular area of the body.

Active Enzyme + (1)______ → (2)______ + (3)______ A) (1) Product (2) Substrate (3) Active Enzyme B) (1) Substrate (2) Product (3) Active Enzyme C) (1) Substrate (2) Product (3) Inactive Enzyme Eliminate D) (1) Product (2) Substrate (3) Inactive Enzyme

Answers

active enzyme + substrate > product + active enzyme

Which country is represented by the number 1?
A) China
B) Japan
C) Mongolia
D) Vietnam

Answers

I would have to say C) Mongoli; it’s part of an Asian route so I guess it should be that :) hope this was helpful
I think it's A) China

Identify the organelles in the cell to the right.

A
B
C
D
E
F

Answers

Answer:

A       Nucleus

B       Lysosome

C       Centriole

D       Cytoplasm

E       Cell membrane

F       Mitochondria

Explanation:

The cell in the image represents an animal cell and the organelles in the cell labelled are as follows:

A - nucleusB - lysosomeC - centrioleD - cytoplasmE - cell membraneF - mitochondrion

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what are three types of passive transport that occur in our body

Answers

Final answer:

Three main passive transport types in the human body are diffusion, osmosis, and facilitated diffusion, all of which involve the movement of molecules or ions across cell membranes without the need for cellular energy.

Explanation:

Three types of passive transport that occur in our body are diffusion, osmosis, and facilitated diffusion.

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration until equilibrium is reached.

Osmosis, a specific type of diffusion for water, is the movement of water through a semi-permeable membrane from a dilute solution toward a more concentrated one.

Facilitated diffusion uses carrier or channel proteins to move substances across the cell membrane from an area of higher concentration to one of lower concentration without the use of energy.

Water can dissolve more susbstances than any other substance. In biology, this is important because water can transport many compounds around the body. In science water is called A) the universal solute B) the universal solvent C) the biological solute D) the biological solvent


your welcome 4 the 99 points

Answers

Hello!

I believe the answer is B) The universal solvent. Water is also called universal solvent because of it's erosive capability. For instance think of the process of erosion.

I hope it helps!

Water can dissolve more substances than any other substance and thus water can transport many compounds around the body. Thus, water is called a universal solvent. So the correct option is B.

What is a universal solvent?

Water is a chemical substance referred to as the universal solvent. A simple liquid that can be used to dissolve other substances is a solvent. The reason that water has got the label of a universal solvent is that no other solvent is able to dissolve as many substances as water.

This is why water is so critical for life to survive on earth. Also, every body of water that is found on earth including ice, can sustain one form of life or another that has adapted to the temperature and pressure that is found in that particular form of water.

It's always an exciting event for scientists when they find water associated with life, on any other planet. This itself tells a lot about this simple-looking substance.

Water is the most abundant substance in every organism and in its cells. There are many uses of water which are obvious. These can be drinking, washing, and putting out fires. This is because of the characteristics possessed by making it the universal solvent.

Many important reactions in the bodies of organisms require an aqueous environment in order to occur and thus water is important for living organisms.

Therefore, the correct option is B.

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The release of ???? From a rock is one of the example of an agent of physical weathering

Answers

water is an example but not sure if it's what your looking for...

Use the example of DDT to explain how a pesticide can bioamplify and damage entire ecosystems

Answers

DDT was utilised to control mosquitoes. DDT executed them however collected in the sand and dirt likewise, through which entered creatures and people by through meals. There, it gets put away in the fat tissue and is extremely hard to breakdown. The predator creatures eat the littler creatures, got DDT in their bodies from the littler creatures and DDT hence, amplified to the best level of the ecosystem. The authorities understood this and restricted DDT.

explain how the thermostat in your house uses a negative feedback system to maintain your home's temperature

Answers

The thermostat in your house works on the principle of a negative feedback loop. This is because as the temperature of your house rises, this setup of the thermostat turns off the furnace and allows the house to rest at a fixed temperature.

What is Thermostat?

A Thermostat may be defined as a type of device that significantly regulates the temperature of a particular area. It works automatically with sensing the high or low temperature.

When the resting temperature falls below that fixed temperature, the furnace reignites and returns the house to its equilibrium state. This type of stabilization feedback is known as a negative feedback system.

A remarkable increase in the temperature leads the thermostat to turn off the furnace, which significantly leads to the reduction of the house's temperature and attaining its equilibrium.

Therefore, this is the principle behind the thermostat of your house that uses a negative feedback system to maintain your home's temperature.

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Which sets of mRNA codons could genetically code for a protein with the following amino acid composition: Pro - Asp - Gly - Lys

Answers

Final answer:

The student is asking for the mRNA codons that could code for a protein with the amino acid sequence Pro - Asp - Gly - Lys. The genetic code is degenerate, allowing multiple codons to code for the same amino acid. Proline, aspartic acid, glycine, and lysine have multiple codons each.

Explanation:

The student is asking about the genetic code and how specific mRNA codons code for amino acids in a protein sequence. Each codon is a set of three nucleotides in mRNA that correspond to one amino acid. Here are the codons that can code for the protein sequence Pro - Asp - Gly - Lys:

Proline (Pro) can be coded by the mRNA codons CCU, CCC, CCA, or CCG.Aspartic acid (Asp) can be coded by the mRNA codons GAU or GAC.Glycine (Gly) can be coded by the mRNA codons GGU, GGC, GGA, or GGG.Lysine (Lys) can be coded by the mRNA codons AAA or AAG.

Therefore, one of the possible mRNA codon combinations for this protein sequence could be CCC - GAU - GGA - AAA. Due to the degeneracy of the genetic code, there are multiple combinations that could result in the same protein sequence.

What is the carrier molecule involved in photosynthesis?
A. H2O
B. NADP+
C. CO2
D. O2

Answers

NADP is the carrier molecule.

Which part of a watershed is the high point of land that separates adjacent watersheds? A. the basin B. the divide C. the collection area D. the boundary

Answers

Answer:

b

Explanation:

The part of a watershed that separates adjacent watersheds is the collection area. So, the correct option is C.

What is a watershed?

A watershed also called a drainage basin is defined as an area of ​​land where all flowing surface water converges at a single point, such as a river mouth, or flows into another body of water such as a lake or ocean.

Watershed is used to mark a demarcated portion of the area drained by the main river and its tributaries, where the waters of the hydrographic basin flow in the same direction and lead to the lower part of the topographic area which is characterized by relief which follows the pattern.

The highest part of the hydrographic basin that separates watershed is the collection area.

Thus, the part of a watershed that separates adjacent watersheds is the collection area. So, the correct option is C.

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