Answer:
The correct answer is option D.
Explanation:
Steroid hormones are basically are lipid-soluble molecules and derived from cholesterol. Steroid hormones pass through cell membranes because they're lipid soluble, and attach to a receptor that is present inside the cell, entering the nucleus, binding to DNA, and beginning gene transcription and translation and produce protein.
Nonsteroid hormones are water soluble hormones that do not enter the cell membrane but bind to cell membrane receptors that produce a chemical signal inside the target cell.
Thus, the correct answer is option D.
The correct comparison between steroid and nonsteroid hormones is C. Steroid hormones bind to receptors on the outside of the cell and rely on secondary messengers while nonsteroidal hormones do not.
Explanation:Steroid hormones, which are derived from cholesterol, are lipid-soluble and can diffuse through the cell membrane to bind to intracellular receptors in the cytoplasm or nucleus. This binding triggers the movement of the hormone-receptor complex to the cell nucleus and the activation of specific genes, leading to the synthesis of proteins.
On the other hand, nonsteroid hormones, such as amino acid-derived and polypeptide hormones, are not lipid-soluble and cannot directly enter the cell. Instead, they bind to receptors on the outer surface of the plasma membrane, triggering signaling pathways and intracellular activity, but do not affect protein synthesis or enter the nucleus.
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What does karyon, as used in prokaryote, mean?
A.
cell wall
B.
cytoplasm
C.
nucleus
D.
ribosome
Answer:
C. nucleus
Explanation:
Karyon is a Greek word which means a kernel or nut and it depicts organisms that do not have a true nucleus. The shape of the nucleus was used in giving it the name karyon.
Prokaryotes are organisms that lacks a true nucleus and do not have membrane bound organelles.
Eukaryotes on the other hand have true nucleus with membrane organelles.
What was Pangaea?when did it form and when did it break apart it was
Pangaea was a supercontinent. This enormous continent was consisted of all continental masses on Earth that merged together in the late Paleozoic era, around 335 million years ago. Pangaea lasted until the early Mesozoic era, breaking apart roughly around 175 million years ago. From the breaking apart of this supercontinent there were two large masses that formed, Laurasia on the north, and Gondwanaland on the south. As these two remnants of Pangaea continued to break apart, the modern day continents started to form and slowly started to give the planet the appearance that we see in the present.
Which statements describe the characteristics of an individual protein? Check all that apply.
Proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, responding to stimuli, providing structure to cells and organisms, and transporting.
According to the principle of segregation, what kind of gametes can an individual with the genotype Bb produce?
A. b only
B. B and b gametes
C. B only
D. B, b, and Bd gametes
Answer:
B
Explanation:
50% B allele, 50% b allele
Answer:
Option B, B and b gametes
Explanation:
As per the principle of segregation, a chromatin containing alleles in pair (which expresses certain trait) gets separated during the cell division and lead to formation of new offspring with a varied genotype. This principle of seggregation is very important in producing diverse species from one generation to other.
Hence, option B is correct.
Maria has been making weather observations for the last couple of days. She made the following notes on the cloud coverage: "Monday: Sky is clear, no clouds. Tuesday: Sky is partly cloudy, large fluffy clouds".
Which understanding about the water cycle can help Maria explain the difference in the cloud coverage?
A. More water evaporated the land to form the clouds in Tuesday.
B. More water evaporated from the land to clear away the clouds on Monday
C. More water vapor condensed im the atmosphere on Tuesday to from the clouds.
D. More water vapor condensed in the atmosphere on Monday to clear away the clouds.
The correct answer to the problem is C. As I explained on your previous post, condensation is the leading cause of cloud formation.
The presence of large fluffy clouds on Tuesday compared to a clear sky on Monday is best explained by increased condensation of water vapor in the atmosphere on Tuesday, forming clouds.
The difference in cloud coverage that Maria observed on Monday and Tuesday can be explained by the water cycle. When Maria observed a clear sky with no clouds on Monday, it's likely there was less water vapor present in the atmosphere or that the conditions were not suitable for the water vapor to condense into clouds. On Tuesday, when she noted that the sky was partly cloudy with large fluffy clouds, this indicates there was likely more water vapor in the atmosphere that condensed to form the clouds. The most accurate explanation for the difference in cloud coverage is C. More water vapor condensed in the atmosphere on Tuesday to form the clouds.
As the ocean becomes more acidic, what is happening to the coral reefs underwater?
A)They are growing out of control and are taking over the ocean.
B)The acid is giving them more color to camouflage from their predators.
C)They are giving the fish around them diseases.
D)They are slowly dissolving, leaving the rest of their food web without a source of food.
The rising acidity of the oceans threatens coral reefs by making it harder for corals to build their skeletons. A new study identifies the details of how ocean acidification affects coral skeletons, allowing scientists to predict more precisely where corals will be more vulnerable.
I’m pretty sure it’s B
what is genetic equilibrium? what conditions are required to maintain genetic equiibrium?
The genetic equilibrium represents the condition of a genotype or an allele in the genetic pool of a particular population, where there are no changes in the frequency in the successive generations. This basically means that the population has managed to reach the peak of its evolution for the environment in which it leaves, so there's no evolutionary pressure for changes.
In order for the genetic equilibrium to be maintained for prolonged period of time, the population should not face any evolutionary pressure that will cause changes in it. In essence, this means that the environment in which the population lives should remain exactly the same as it is for longer period of time, so the population will have no need to change its appearance or behavior.
What two fundamental characteristics distinguish animals from plants?
1. When a person does strenuous exercise, small blood vessels (capillaries) near the surface of the skin increase in diameter. This change allows the body to be cooled. Which of the following best illustrates these statements?
1Points
A
excretion
B
homeostasis
C
locomotion
D
synthesis
2. Which characteristic is shared by all prokaryotes and eukaryotes?
1Points
A
ability to store hereditary information
B
use of cellular respiration for energy release
C
use of organelles to control cell processes
D
ability to move in response to environmental stimuli
3. Which cell structures are correctly paired with their functions?
1Points
A
The mitochondria produce enzymes and ribosomes transport them.
B
The ribosomes make proteins and the nucleus stores genetic information.
C
The cell membrane makes enzymes and cytoplasm transports them.
D
The vacuole stores genetic information and chloroplasts make proteins.
4. What term describes the light-absorbing molecule that plants use to absorb energy?
1Points
A
grana
B
pigments
C
stroma
D
thylakoids
Answer: For Question Two: The answer is "to store hereditary information." If you require further explanation, please ask.
Explanation:
All prokaryotes and eukaryotes contain nucleic acids, which store hereditary information.
Which describes the temperature for successfully sperm production
Answer:
Slightly lower than body temperature. Hope this helps.
Explanation:
In the most common mode of reproduction, fungi produce and release _______, which are involved in both sexual and asexual reproduction.
Answer:
spores
Explanation:
Which letter from the fungus diagram represents the hyphae?
Answer:
C
Explanation:
Hyphae is the vegetative growth of fungi. It is long and filamentous in nature and is analogous to the rhizoids of runner plants. A network of many crisscrossing hyphae is called mycelium, When a hyphae branches vertically upwards to give rise to a sporangium, it is called a sporangiophore (such as the case in the attached diagram).
Answer: The correct answer is D
Explanation: to help others
What is binary fission?
what is a kingdom
A. Animalia
B. Eukarya
C. Mammalia
D. Prokarya
D. Animalia is a kingdom.
It is one of the three Kingdoms of Eukarya.
The correct answer is A
o eliminate the possibility of hidden or unknown variables, the scientist must run a _______ experiment.
A) control
B) preliminary
C) test
D) variable
Answer:
To eliminate the possibility of hidden or unknown variables, the scientist must run a Controlled experiment.
Select all that apply.
Lipids _____.
The consist of fats and things so the answer would be the first one:)
Consists of fats,phospholipids, and steroids
How are the reactants represented in the chemical equation for photosynthesis?
Answer: The equation for photosynthesis states that the combination of carbon dioxide, water and light energy produces a carbohydrate (glucose) and oxygen. The chemical formula is 6CO2 + 6H2O + light energy = C6H12O6 + 6O2. ... This translates to the production of glucose and oxygen from carbon dioxide and water.
I hope this helps you
please mark my answer as brainliest
The two reactants in the chemical equation for photosynthesis are carbon dioxide and water.
What is photosynthesis?Photosynthesis is the conversion of light energy into chemical energy by green plants and other organisms. Light energy is collected and utilized by green plants during photosynthesis to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic molecules.
6CO₂ + 12H₂O --> C₆H₁₂O₆ + 6O₂ + 6H₂O is the general formula for photosynthesis.
The photosynthesis equation indicates that when carbon dioxide, water, and light energy are combined, a carbohydrate (glucose) and oxygen are produced. This leads to glucose and oxygen is produced from carbon dioxide and water.
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Which describes an example of genetic engineering
Answer:
i think its C
Explanation:
Answer: The answer would be 2: Vitamin A is added to rice to combat blindness.
Explanation: With how genetic engineering works, any implentation from an external source into the genetic code of a substance or being, in this case rice and vitamin A, it is a deliberate alteration of the rice's make up to have something which it originally did not possess, thus the answer is 2.
who is the secondary consumer in this food chain?grasses rabbits snakes hawks
Answer:
The answer could be snakes or hawks but snakes is your best bet.
Explanation:
Rabbits eat the grass(the producer) making them the first consumer but the hawks and the snakes can both eat the rabbits making then secondary consumers.
Answer:snakes
Explanation:
first grass is producer then rabbits first consumer ,
snakes then hawks
Which product do petroleum resources provide in addition to energy? plastic aggregate nickel cardboard
Plastic. (Petroleum can provide the raw material for making plastic)
Answer:
Plastic
Explanation:
A(n) ___ forms along the boundaries where two contrasting air masses meet
I believe the answer is a front
Answer:
Air Front
Explanation:
The transition zone between two distinct air mass is known as the front. The presence of the air front in an area indicates the change in the weather pattern causing heavy rainfall, thunderstorms, hurricanes, tornadoes, and blustery wind.
This air front is mainly divided into 4 types. They are as follows-
(1) Warm air front- In this type of front, the warm air replaces the cold air mass.
(2) Cold air front- In this type of front, the cold air replaces the warm air.
(3) Occluded air front- When a warm air mass occurs in between two cold air mass, then it is known as the occluded air. It results in heavy rainfall and powerful wind.
(4) Stationary air front- When both the warm and cold air occurs simultaneously and there occurs no replacement of one another, then it is known as the stationary type of air front.
which of the following statements about metallic bonds is false
A.The resulting compound has low and melting and boiling points.
B. the resulting compound has a shiny surface
C. the resulting compound is a good conductor or electricity
D. the resulting compound cannot be dissolved in water.
- Its A! they have high melting/boiling points.
Metallic bonds do have shiny surfaces (hence, the name metallic).
Metallic bonds are good conductors of electricity.
Metallic bonds cannot be dissolved in water.
The correct answer is option A.
-the resulting compound has low melting and boiling points
Answer:
The resulting compound has low and melting and boiling points.
Explanation:
Metallic bond: It is the type of bond (chemical) that hold the atoms of metal together, it forms when the electrostatic attractive force present between conduction electron and fixed positive charge metal atoms. So, metal atoms have high melting and boiling point. This means that they take lot of energy to overcome these Forces (electrostatic) during melting and boiling time.
It also describes as the sharing of free electrons between the structure of positively charged ions.
In the human body, what are systems made of?
O
A. A group of tissues
O
B. A group of organs
O
C. A group of cells
U
D. A group of reactions
SUBMIT
The human body is made up of 11 systems of organs.
The systems are: Circulatory, respiratory, digestive, excretory, nervous, endocrine, immune, integumentary, skeletal, muscle, and reproductive.
In the human body, systems are made up of a group of organs. So, the correct option is B.
What do you mean by Organs?Organs may be defined as a collection of tissues to form a specific structure that is required to perform a definite function in the body of an organism.
There are nine major organ systems present in the human body. They are the circulatory system, the digestive system, the nervous system, the reproductive system, the excretory system, the respiratory system, the integumentary system, the musculoskeletal system, and the endocrine system.
These organ systems play a specific role in order to provide suitable conditions for the survival of human beings.
Therefore, in the human body, systems are made up of a group of organs. So, the correct option is B.
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When a new plant develops from a stem or root of its parent plant this is called what?
Answer:
Leaf cuttings, in which a leaf is placed on moist soil. These have to develop both new stems and new roots.
Explanation:
Some leaves will produce one plant at the base of the leaf. In some species, multiple new plants can be produced at many places on one leaf, and these can be induced by cutting the leaf veins.
Answer:
it is called asexual reproduction
Explanation:
What type of cell is prepared to live on its own?
A. Viral cell
B. Unicellular cell
C. Eukaryotic cell
D. Multicellular cell
Answer: A unicellular
Explanation: The entire body is unicellular therefore it can live on it's own
Final answer:
The type of cell that is prepared to live on its own is a unicellular cell (Option B).
Explanation:
Unicellular organisms are made up of a single cell that carries out all the functions necessary for life. In contrast, a eukaryotic cell (Option C) may be part of a multicellular organism and relies on a community of cells to survive. Viruses (Option A) are not considered living because they require a host cell to replicate. Multicellular cells (Option D) are individual cells that are part of a larger organism consisting of many cells, and they cannot live independently.
The presence of a membrane-enclosed nucleus is a characteristic of eukaryotic cells (Option B). Eukaryotic cells have membrane-bound organelles, including a nucleus, which differentiates them from prokaryotic cells which do not have a membrane-bound nucleus.
Lastly, a note on viruses: they are not considered living organisms as they are acellular, meaning they are not made up of cells. They are obligate parasites that require a host to replicate. Therefore, they cannot be categorized with cellular life such as unicellular or multicellular organisms.
A cell with 20 chromosomes divides by mitosis. Each new daughter cell will have _____.
Answer:
I think that there would be about 46 chromosomes.
Explanation:
Answer:
40 chromosomes
Explanation:
Dinoflagellates can perform photosynthesis and provide energy for themselves and for the coral that they live near. The coral provide protection to the dinoflagellates. This is an example of a
A. mutualistic relationship.
B. dependent relationship.
C. parasitic relationship.
D. commensalistic relationship.
Answer: A. mutualistic relationship.
Explanation:
Dinoflagellates are the algae which belongs to the family of Symbiodiniaceae. It is a single celled algae. It develops a mutualistic relationship with the coral polyps. The function of the dinoflagellates is the conduction of the process of photosynthesis. The products of photosynthesis are shared with the coral polyps which gives energy to the coral polyps to form calcium carbonate skeletons. The waste produced after this process in the form of inorganic nutrients and carbon dioxide is again utilized by the dinoflagellates. This way both species obtains the benefit. Hence, it is a mutualistic relationship between the two species.
The coral provide protection to the dinoflagellates. This is an example of a mutualistic relationship. The correct option is A.
The interaction between the dinoflagellates and the coral in this situation is an illustration of a mutualistic relationship.
Mutualism is a form of symbiotic partnership in which the interaction benefits both species.
In this instance, the dinoflagellates carry out photosynthesis and generate molecules that are high in energy, which serves as a source of nutrients and energy for both the dinoflagellates and the coral.
In exchange, the coral offers a safe habitat for dinoflagellates to flourish. It is a mutualistic connection since the life of both organisms depends on it and because both parties gain from it.
Thus, the correct option is A.
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A scientist hypothesizes that the lack of chinook salmon is negatively affecting the orca population. Would this hypothesis need to be tested by another scientist in order to become a theory? Why or why not?
A) It is not done because scientist do not make mistakes.
B) It is not done because scientists do not read each other’s work.
C) It is done because peer review and the consideration of an alternative explanation should be considered.
D) It is done because peer review is not mandatory when developing a theory.
Answer: The answer is C. It is done because peer review and the consideration of an alternative explanation should be considered.
Explanation: this is the correct answer because when other scientist view other scientist work it is to indicate that the hypothesis and observations that they made is correct.
Answer:
C: It is done because peer review and the consideration of an alternative explanation should be considered.
Explanation:
I just took the test and got it right :)
A scientific theory can be defined as a well-supported and widely accepted explanation of nature. According to this definition, which statement describes a scientific theory.
Answer:
The universe was created at the Big Bang.
Explanation:
what type of cells are made from a secondary oocyte?
Answer:Ovarian
Explanation:
Answer: A secondary oocyte undergoes the second meiotic cell division to form a haploid ovum if it is fertilized by a sperm. Oogenesis begins with oogonia (singular, oogonium), which are the immature eggs that form in the ovaries before birth. Oogonia are diploid cells and are equivalent to spermatogonia in males.
Explanation: