Answer:
B. Tissue
Explanation:
Grizzly bears have a diploid number of 74 chromosomes in their body cells. How many chromosomes were in each of the male's sperm cells?.
Answer:
74 ÷ 2 = 37
since it's only one gamete cell then it's twice less the number
Blank 1) Proteins
Cytoplasm
Chromosomes
Blank 2) Alleles
Proteins
Chromosomes
Blank 3) Mutations
Adaptations
Chromosomes
Blank 4) Neutral
Harmful
Beneficial
Beneficial, neutral, or harmful
Answer:
Blank 1) chromosomes
Blank 2) proteins
Blank 3) mutations
Blank 4) harmful
Senescence __________. Question 5 options: a) begins at the moment of conception and accelerates after age 40 b) occurs across all parts of the body at the same time and speed c) begins once body structures reach maximum capacity and efficiency d) occurs because the physical body wears out from use
Answer: c. Senescence begins once body structures reach maximum capacity and efficiency
Explanation: Senescence is simply ‘growing old’. Aging sets in at the time when physical development is complete - when a person reaches their ‘prime’. After that a person is ‘past their prime’ which is the subjective recognition of the on set of gradual deterioration. The biological rationale is that the purpose of life is to survive to reproductive age and to reproduce, and in some species to assist progeny to survive to reproductive age. Beyond that, survival has limited value.
An analogy is the length of an elephant’s trunk. It is as long as it needs to be, determined by natural selection, but no longer than it needs to be for optimum efficiency, again determined by natural selection.
please help please giving brainlest
Answer:
hmm it think it is option one as the answer
Explanation:
because i typed it in and i found the answer
This is the origin of new combinations of traits in offspring(fourth option). This process is called crossing-over or intrachromosomial recombination. This is the reason why parents and offspring don't look alike
DNA and RNA differ in the following way(s):
1. DNA has a phosphate and RNA does not
2. DNA and RNA have different 5 carbon sugars
3. DNA and RNA have the same nucleotides
4. Both A and C
Answer:
2
Explanation:
RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose
Sodium has the atomic number 11. How many electrons are in a sodium ion, which has the symbol Nat?
A.
10
B.
11
C.
12
Answer:
11
Explanation:
Hope this will help you
Put the following in order from most thermal energy to least thermal energy.
from hottest to coldest:
- the turkey
- the tea
- the beach
- the, what is it, an iceberg or ocean?
- the ice cube
refer to the other question I answered by you. 0 degrees Celsius would be frozen, 100 would be boiling hot. Since -2 is the lowest, that would be the coldest/ least amount of thermal energy. 60 degrees Celsius is the highest, so it has the most thermal energy. Again, thermal energy is just heat energy, so you just need to figure out which is hottest.
Cancer cells are rogue cells. List and explain 3 mutations that allow cancer cells to occur:
What particle in an atom determines what element it is?
Answer:
Protons
Explanation:
The number of protons in the nucleus determines which element an atom is, while the number of electrons surrounding the nucleus determines which kind of reactions the atom will undergo. The three types of subatomic particles are illustrated below for an atom of helium—which, by definition, contains two protons.
A nucleotide consists of
A nucleotide is made up of a sugar molecule connected to a phosphate group and a nitrogen-containing base. These bases in nucleotides are adenine, cytosine, guanine, and thymine (Note: Thymine is not present in RNA so it is replaced with Uracil.)
A dry beaker has a mass of 55.0 g. When 50.0 mL of water is added to the beaker, the mass of the water and the beaker is 105.0 g. What is the density of the water?
How can vaccines be used to prevent viral infection?
A.)To prevent a immune response in the host
B.)To destroy any virus that enters the host
C.)To create a blocking protein on the cell
D.)To prevent the replication of the virus
Answer:
D
Explanation:
I know
Answer:
I believe that your answer is C.
Explanation:
C is your answer because it shows your body how to fight and block the virus.
vaccines usually send antigerms in your cells and create immunity/block the virus from entering your cells.
i hope this helps! let me know if im wrong :)
what can a stars color indicate about its properties
Answer:
A star's color indicates it's temperature, composition and relative distance from earth
Explanation:
I hope this helps, have a good day
Answer:
A star can be defined by five basic characteristics: brightness, color, surface temperature, size and mass.
Brightness. Two characteristics define brightness: luminosity and magnitude. ...
Color. A star's color depends on its surface temperature. ...
Surface Temperature. ...
Size. ...
Mass
ill give you a brainliest if it is right
Answer:
Both water and oil are not minerals because they are liquids.
Explanation:
Which statement best describes the purpose of Earth's spheres?
Answer:
They work together as open systems to cycle matter through ecosystems. They work independently as closed systems to cycle matter through ecosystems. They work together as open systems to move matter to living and nonliving parts of Earth
Messenger RNA (mRNA) travels from the nucleus of a eukaryotic cell to the ribosome. At the ribosome, the amino acids are lined up in order as the tRNA molecules line up with complementary bases on the mRNA. This process is called _____ and results in the formation of _____.
Answer:
The correct answer is - translation, polypeptide/amino acid chain.
Explanation:
The translation is the process that involves the movement of mRNA from the nucleus to the ribosome and where amino acids are formed in sequence linked with one another in the same order as the transfer RNA line up with the complementary bases encoded on the messenger RNA or mRNA.
This amino acid chain or the polypeptide folds in a specific way to active protein for the specific function or expression. This process is the last stage or phase of protein synthesis.
PLEASE ANSWER QUICK
The figure presents a diagram of adding d T M P to a growing strand of D N A. A D N A template that consists of nine nucleotides is shown. Five nucleotides have already been added to the complementary strand that is growing from left to right along the template. The left end of the growing strand is labeled 5 prime, and the right end is labeled 3 prime. The left end of the template strand is labeled 3 prime, and the right end is labeled 5 prime. An incoming d T T P has three phosphate groups. Arrows indicate that the two outermost phosphate groups split off as the d T M P with the remaining phosphate group is about to join to the 3 prime end of the growing strand.
Figure 1. Model showing details of adding a deoxythymidine monophosphate (dTMP) nucleotide to a growing strand of DNA
The features of this model provide evidence for which explanation of why all growing strands are synthesized in a 5′ to 3′ direction?
A. The two strands need to be antiparallel to bond properly.
B. Thymine and adenine would not bond properly if the strand grew from 3′ to 5′.
C. The translation of mRNA occurs in the 5′ to 3′ direction; therefore, the growing DNA strand must also grow in the 5′ to 3′ direction.
D. The phosphate group, attached to the 5′ carbon of the dTMP, forms a covalent bond with the oxygen atom attached to the 3′ carbon of the growing strand.
Answer:
D - The phosphate group, attached to the 5′ carbon of the dTMP, forms a covalent bond with the oxygen atom attached to the 3′ carbon of the growing strand.
Explanation:
I got it checked and it was right
The feature of the model provides evidence in a 5′ to 3′ direction is the phosphate group, attached to the 5′ carbon of the dTMP, forms a covalent bond with the oxygen atom attached to the 3′ carbon of the growing strand. The correct option is D.
What are DNA bases?The sequence of DNA bases is referred to as the DNA sequence. RNA and DNA are both genetic elements composed of nucleic acids composed of deoxyribose acid, while RNA is composed of ribonucleic acid.
Both DNA and RNA have four bases that are linked together by a hydrogen bond. RNA has uracil in place of thymine, but DNA has timing and all other bases are the same.
Therefore, the correct option is D. The phosphate group, connected to the dTMP's 5′ carbon, creates a covalent bond with the oxygen atom associated with the developing strand's 3′ carbon.
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1. This is a glucose molecule, the sugar made in photosynthesis. Saccharides, or sugars, are
the building blocks for carbohydrates. What is another term for “building block?"
At night, a land breeze forms because
A) water releases less solar energy during the day; warm ocean air moves into land.
B) land cools more quickly than water; cool land air moves to replace rising warm air over the water
C) land absorbs less solar energy during the day; cool land air moves to replace rising warm air over the water
D) water absorbs more solar energy during the day; cool land air moves to replace rising warm air over the water
Answer:
B) land cools more quickly than water; cool land air moves to replace rising warm air over the water
Explanation:
During the day, the land surface heats up faster than the water surface. Therefore, the air above the land is warmer than the air above the ocean. ... The bottom of the following image illustrates the land breeze that occurs at night. Recall that the land surface cools quicker than the water surface at night.
In which cellular organelle is genetic information (DNA) held?
Mitochondria
Ribosomes
Cell membrane
Nucleus
Answer:
Nucleus
Explanation:
Of the 6 elements which is most important for making large molecules (chnops) PLEASE HELP ME I NEED IT QUICK!!! Thanks
What is gained from each part of aerobic respiration?
Answer:
Cellular respiration uses energy in glucose to make ATP. Aerobic (“oxygen-using”) respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport. ... This results in a net gain of two ATP molecules. Life first evolved in the absence of oxygen, and glycolysis does not require oxygen.
Hope this helps..How does the immune system work with other body systems to protect the body from pathogens?
Answer:
integumentery system
Explanation:
your skin is actually the first protection against illness-causing pathogens.
Match the type of metamorphism to its cause.
Answer:
Contact - Heat
Dynamic - Directed Pressure
Impact - Meteorite
Regional - Surrounding
Just as energy flows through an ecosystem, matter also moves from organism to organism and from organisms to the environment. Using either a kelp forest or a hydrothermal vent ecosystem as an example, explain how carbon can move through the organisms in that ecosystem.
Answer:
Explanation:
Energy is transferred through an ecosystem in steps, making up a food chain or a food web. At the bottom of the chain are the primary producers, which absorb sunlight and use the light energy to convert carbon dioxide and water into carbohydrates (long chains of sugar molecules) and eventually into other biochemical molecules, by photosynthesis.
The primary producers support the consumers—organisms that ingest other organisms as their food source. Finally, decomposers feed on decaying organic matter, from all levels of the web. Decomposers are largely microscopic organisms (microorganisms) and bacteria.
The food web is really an energy flow system, tracing the path of solar energy through the ecosystem. Solar energy is absorbed by the primary producers and stored in the chemical products of photosynthesis. As these organisms are eaten and digested by consumers, chemical energy is released. This chemical energy is used to power new biochemical reactions, which again produce stored chemical energy in the consumers' bodies.
Energy is lost at each level in the food web through respiration. You can think of this lost energy as fuel burned to keep the organism operating. Energy expended in respiration is ultimately lost as waste heat and cannot be stored for use by other organisms higher up in the food chain. This means that, generally, both the numbers of organisms and their total amount of living tissue must decrease greatly up the food chain. In general, only 10 to 50 percent of the energy stored in organic matter at one level can be passed up the chain to the next level. Normally, there are about four levels of consumers.
A food chain or a food web is made up of the stages through which energy is moved across an ecosystem. The primary producers are found at the bottom of the food chain.
What is food chain?By photosynthesis, they transform carbon dioxide and water into carbohydrates (long chains of sugar molecules) and ultimately into other biological compounds.
The consumers are organisms that consume other organisms as food—are supported by the primary producers. Decomposers, who feed on decaying organic materials from all tiers of the web, are the last group. The majority of decomposers are bacteria and tiny organisms.
The food web actually follows the route of solar energy through the environment and is a system of energy flow.
Therefore, A food chain or a food web is made up of the stages through which energy is moved across an ecosystem. The primary producers are found at the bottom of the food chain.
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Give two ways in which saliva aids digestion.
Explanation:
Saliva contains special enzymes that help digest the starches in your food. An enzyme called amylase breaks down starches (complex carbohydrates) into sugars, which your body can more easily absorb. Saliva also contains an enzyme called lingual lipase, which breaks down fats.
help please don't know the answer
All life on Earth has DNA. All life on Earth has the same set of mutations in its genes
Which of the following is the correct rule of nucleic acids in the body?
A. They provide quick-releasing energy to the body
B. They contain genetic information that is passed to offspring
C. They catalyze chemical reactions left in the cell
D. They are the main structural components of cell membranes
Answer: B. They contain genetic information
Explanation: The role of nucleic acids is to store the genetic information (DNA) and to decode that information into proteins (RNA). DNA is also the form in which genetic information is passed from one generation to the next.
One major difference between prokaryotic and eukaryotic cells is
Group of answer choices
Prokaryotic cells are microscopic, eukaryotic cells are not
Prokaryotic cells have no nucleus, eukaryotic cells do
Prokaryotic cells do not contain DNA, eukaryotic cells do
Prokaryotic cells are more complex, eukaryotic cells are more simple
Answer:
Prokaryotic cells have no nucleus, whereas eukaryotic cells have DNA enclosed in a nucleus.
Explanation:
The major difference between prokaryotic and eukaryotic cells is -Prokaryotic cells have no nucleus, eukaryotic cells do.
Eukaryotic cells are one of the two types of cell types prokaryotic and eukaryotic. There are various structural and functional differences found in them.
Eukaryotic cells are different from prokaryotic cells as:
the presence of a nucleus that stores DNA surrounded by the nuclear membrane presence of membrane-bound organelles like chloroplast. cell wall may or may not be present cell division is either mitosis or meiosis Eukaryotic organisms have various ranges of organisms either multicellular or single-celled as well.Thus, The major difference between prokaryotic and eukaryotic cells is -Prokaryotic cells have no nucleus, eukaryotic cells do.
Learn more about prokaryotic cells:
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HELPPPPP ILL MARK YOU BRAINLY
Answer:
Photosynthesis transforms light energy into chemical energy by making sugars. Cellular respiration releases the chemical energy from food by breaking down sugars.