Answer:
true
Explanation:
Answer:
True.
Explanation:
Periods can come late, but even so, if the woman is an adult and has mostly predicable and a regular schedule that can be tracked, then the period could be late for at least 7-9 days MAX. 14 days would be pushing it.
Fragments of metal or rock which enter the Earth's atmosphere from space are called:
Meteorites
Meteoroids
Meteors
meteoroid- hope this helped have a good day!!
Answer:
meteorites. i had the same one.
Explanation:
What function makes the HIV virus unique?
A. It has viral DNA that remains dormant until environmental conditions are right.
B. It attacks neurons in the nervous system and causes paralysis
C. It attacks and destroys certain cells in the bodies of its host organisms.
D. It has viral DNA that is transmitted through direct contact with infected persons
Answer: A
It has viral DNA that remains dormant until environmental conditions are right.
HIV is a unique human RNA virus, capable of infecting cells of the immune system.
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It attacks and destroys certain cells in the bodies of its host organisms. Therefore, option (C) is correct.
What is HIV?HIV, or human immunodeficiency virus, attacks and destroys a specific type of immune cell called CD4+ T cells. These cells play a critical role in the immune system, and their destruction leads to a loss of immunity and the development of acquired immunodeficiency syndrome (AIDS). HIV is unique in that it specifically targets and attacks these cells, leading to a gradual decline in the body's ability to fight off infections and diseases.
HIV is primarily spread through sexual contact, but can also be spread through sharing needles or from mother to child during pregnancy, childbirth, or breastfeeding. HIV can lead to AIDS (Acquired Immunodeficiency Syndrome) if left untreated.
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During cell respiration, the reactants of glucose and oxygen are transformed into the products of carbon dioxide, water, and ATP. Which of the following cell transport processes would be relatively unaffected if a cell no longer had access to glucose? Choose 1 answer: Choose 1 answer: (Choice A) A The transport of calcium into a muscle cell via facilitated diffusion. (Choice B) B The transport of an amino acid into an intestinal cell from an area of low concentration to an area of high concentration gradient. (Choice C) C The transport of sodium against its concentration gradient in a brain cell. (Choice D) D The passive transport of a charged potassium ion (K^+ + start superscript, plus, end superscript) through a cell membrane.
The process of cell transport that would be relatively unaffected if a cell no longer had access to glucose is the transport of calcium into a muscle cell via facilitated diffusion. Thus, the correct option is A.
What is Cellular respiration?Cellular respiration may be defined as the chemical process through which the breaking down of food occurs with the liberation of energy. This process takes place in the excess of oxygen and constructs energy from carbohydrates (sugars).
The excess glucose delivers the required energy for the cell to perform its metabolic activities. But when the amount of glucose is not significantly present in the cell, the process of transport of calcium into a muscle cell via facilitated diffusion remains unaffected.
This is because the transport of calcium occurs due to paracellular passive transport without the utilization of energy. While the rest of the process requires energy for the transport.
And due to a lack of glucose, cells do not have the ability to derive energy in form of ATP.
Therefore, the process of cell transport that would be relatively unaffected if a cell no longer had access to glucose is the transport of calcium into a muscle cell via facilitated diffusion. Thus, the correct option is A.
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Please need help as soon as possible thank you so much
How dose domestication relate to artificial selection?
Answer:
Artificial selection and domestication is where humans take matters into their own hands. And instead of waiting for nature to do things, they are the selection factor. ... And when you have that type of artificial selection, the change can happen much, much faster. Breeding is essentially artificial selection.
Explanation:
Artificial selection and domestication is where humans take matters into their own hands. And instead of waiting for nature to do things, they are the selection factor. ... And when you have that type of artificial selection, the change can happen much, much faster. Breeding is essentially artificial selection.
A prokaryonc cel is similar to a eskaryotic celintat bom types of cells contain
Answer:
they both have a cell membrane
9.. Water enters the atmosphere as water vapor when liquid water ______
on Earth's surface. (12 points!!) i will give a brainliest and a like. please reply fast!!)
What is the mRNA transcript for this gene? CTTCGGATC
Answer:
GAAGCCTAG
Explanation:
A in Bio last year
Cells transport substances across the cell membrane through a variety of means.
Which of the following diagrams represents the movement of substances across the
membrane using a channel protein?
Answer:
facilitated diffusion.
Which organism is an animal-like protist?
cilia
dinoflagellates
amoeba
truffle
please answer this for me
Answer:
The answer is A
Explanation:
You can take a sample of blood from an animal or a leaf from a plant and put it under a microscope and you will see that they are both made of cells.
Cold food should be stored at a maximum internal temperature of 41 degrees F or lower.
True
False
Answer:
the answer is true I think
Answer:
I took the test.
Its False
Proteins are found in all cell types and tissues. Contrasted to proteins found in skeletal tissue, what is the main function of proteins found in antibodies?
A. to provide storage for elements
B. to allow muscle movement
C. to provide storage for energy
D. to protect against disease
Answer:
d
Explanation:
Owls (primary predators of rock pocket mice) are nocturnal visual predators that are able to distinguish effectively between dark and light colors in low-light conditions,
Which of the following best explains the relationship between coat color and predation rate in the rock pocket mouse population on the lava flow rocks with
respect to the different coat color
phenotypes?
Answer: A dark coat color provides camouflage to mice on the lava flow rocks; therefore, mice with dark coats have a lower predation rate in that habitat.
Please help please help please help please help please help please help please help please help please help please help please help please help please help please help
Answer:
It allows the cell to regulate the movement of materials into and out of the cell
Explanation:
This molecule is a saturated fatty acid. The cell membrane is made up of a phosphate head and three fatty acid tails that form a lipid bilayer arrangement.
This lipid bilayer regulates the entry and exit of substances into and out of the cell. Small non-polar molecules, like oxygen and carbon dioxide, are soluble in the lipid bilayer and can easily cross the plasma membrane. Small uncharged polar molecules, like water, can pass through the membrane by osmosis. Larger molecules such as glucose, or charged molecules like ions, require active transport to be passed across the cell membrane.
Answer:
It allows the cell to regulate the movement of materials into and out of the cell
Explanation:
Define ecological succession.
Answer:
the process by which the structure of a biological community evolves over time
Explanation:
Answer:
the process by which the structure of a biological community evolves over time. Two different types of succession—primary and secondary—have been distinguished.
Explanation:
Which process is the opposite of inbreeding?
pollination
hybridization
seed production
genetic engineering
9
Answer:
B
Explanation:
Hybridization
Answer:
B
Explanation:
The chemical reaction equation of photosyntesis is shown here: What information is not given in this equation. It does not show if the reaction is reversible or not reversible. It does not show the reactants needed for the reaction. It does not show that photosynthesis consists of many separate steps. It does not show the number of molecules required to produce glucose.
Answer:
does not show if the reaction is reversible or not reversible.
Explanation:
its that
How do blood glucose levels increase in the body?
is this correct? please help me
Answer:
It look good to me but I dont know for sure so we will see
Nitrogenous wastes result from the metabolism of what?
Answer:
Explanation:
The nitrogen compounds through which excess nitrogen is eliminated from organisms are called nitrogenous wastes (/naɪˈtrɒdʒɪnəs/) or nitrogen wastes. They are ammonia, urea, uric acid, and creatinine. All of these substances are produced from protein metabolism.
I explained it the best I could. Can I have brainlliest? Thank you.
Answer:
Explanation:The nitrogen compounds through which excess nitrogen is eliminated from organisms are called nitrogenous wastes (/naɪˈtrɒdʒɪnəs/) or nitrogen wastes. They are ammonia, urea, uric acid, and creatinine. All of these substances are produced from protein metabolism.
9. List the steps of cellular respiration in order
Answer:
glycoliysis, citric acid cycle, electron transfer chain
Examine the images.
Which of the following statements best explains why the cube in Image B is under more pressure than the cube in Image A?
A.) The density of the fluid in Image B is greater than that of Image A.
B.) The volume of the cube in Image B is greater than that of Image A.
C.) The volume of fluid in Image B is greater than that of Image A.
D.) The mass of the cube in Image B is greater than that of Image A.
The answer is C.) The volume of fluid in Image B is greater than that of Image A.
what statement is best supported by the data shown
Logistic growth curves are density-dependent.
true or false?
Answer:
true
Explanation:
A curve in which the rate of population growth stays the same, as a result, the population size increases steadily. ... Resources that limit population growth to their quantity, such as food and water. Logistic Model. A population model in which exponential growth is limited by a density-dependent factor.
Answer:
A, true
Explanation:
have a great day and stay happy
Hal wonders about the properties of electromagnetic waves that make up the visible light spectrum. He conducts an experiment to see how sunlight behaves while moving through a prism. He is able to separate visible light into colors of the rainbow. He notices that each color has a unique wavelength and frequency.
Diagram showing wavelengths of light that make up the visible spectrum.
Which of these statements describe visible light waves? Choose the two that apply.
A. Red light has a longer distance between wave crests than blue light.
B. Yellow light has a shorter distance between wave crests than green light.
C. Blue light has a longer distance between wave crests than red light.
D. Blue light has a shorter distance between wave crests than orange light.
E. Orange light has a shorter distance between wave crests than violet light.
Answer:
d.Blue light has a shorter distance between wave crests than orange light.
A. Red light has a longer distance between wave crests than blue light.
Explanation:Make sure u read!!!!
The correct answers are C. Blue light has a longer distance between wave crests than red light, and E. Orange light has a shorter distance between wave crests than violet light.
What is visible light?Visible light waves are a type of electromagnetic radiation that are visible to the human eye. They make up a small portion of the electromagnetic spectrum and have wavelengths that range from about 400 nanometers (nm) to 700 nm. Visible light waves can be separated into colors of the rainbow, including red, orange, yellow, green, blue, indigo, and violet.
Each color of visible light has a unique wavelength and frequency. Red light has the longest wavelength and the lowest frequency, while violet light has the shortest wavelength and the highest frequency. This means that red light has a longer distance between wave crests than violet light, and violet light has a shorter distance between wave crests than red light.
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What are the two bands of latitude on Earth that receive no light at times called?
Answer:
summer and winter
Explanation:
This DNA strand consists of eight pairs of nitrogenous bases. How many different sequences of eight bases can you make? Explain how you found your answer.
Answer:
In the sequence of 8, it would be 4 (possible bases) to the power of 8 because you need to multiply 4, eight times for the number of sequences. Therefore, the answer is 65, 536 possible sequences.
There are 65,536 different possible sequences in a DNA strand consisting of eight pairs of nitrogenous bases.
We have a DNA strand consisting of eight pairs of nitrogenous bases and we want to know how many different sequences of eight bases can we make, that is, how many combinations are possible.In DNA, there are 4 kinds of nitrogenous bases: Adenine (A), Guanine (G), Thymine (T) and Cytosine (C).Each position (P) can be occupied by any of the 4 bases (B). Since there are 8 positions, and the bases can be repeated, we can calculate the total number of different sequences (N) using the following expression.
[tex]N = B^{P} = 4^{8} = 65,536[/tex]
There are 65,536 different possible sequences in a DNA strand consisting of eight pairs of nitrogenous bases.
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A mixture can be separated by all of the following EXCEPT
Filtration
Distillation
Sieving
A magnet
Evaporation
All are methods to separate mixtures
Answer:
All are methods to separate mixtures
Explanation:
A mixture consists of 2 or more substances that are mixed physically but not chemically. Hence, mixtures can be separated by any physical separation means which include but not limited to filtration, distillation, sieving, magnetization, and evaporation.
Filtration is usually used to separate suspended particles in a liquid using a membrane of a filter paper. Distillation is used to separate miscible liquids with varying boiling points by evaporating and condensing them back at their respective boiling points. Sieving is used to separate mixtures with varying particle sizes of individual components.
Magnetization is usually used to separate mixtures with, at least, one component with magnetic property. Evaporation is used to separate dissolved solids from liquids.
Hence, all the methods listed are used to separate mixtures.
a _________ reaction occurs when you mix an acid with a base
Answer:
a Neutralization reaction occurs
Explanation:
Are Viruses Alive? Venn Diagram
Directions: Use the word bank provided to complete the Venn diagram below. Then complete the exercise
below.
Word Bank
Capsid
Cell Membrane
Nucleus
Evolve
RNA
Cell organelles
Envelope
Heredity
Homeostasis
DNA
Ribosomes
Develop
Cell
Virus
Answer:
Viruses are not alive
Explanation:
Viruses are acellular structures capable of performing some biological functions.
What are viruses?Viruses are parasitic structures made of an outer protein capsid and genetic material which are able to replicate in a living cell and thus cause infection in the cell.
Viruses hijack the replicative machinery of the host to produce copies of its own genetic material. A single infected cell is capable of producing thousands of viruses.
The virus only injects the nucleic acid inside the target cell, the envelope and capsid are left outside. The hijacked genetic machinery of the host produces further copies of the nucleic acid, capsid and envelope.
These structures are assembled to give rise to new viruses.
If a large number of viruses are synthesized rapidly, it results in cell lysis. This type of infection is called the lytic cycle.
If the virus genome incorporates with the host genome, it is present there silently and being replicated. Upon receiving an activation signal lytic cycle is activated. It is called the lysogenic cycle
Therefore, viruses are acellular structures capable of performing some biological functions.
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