Natural killer (NK) cells are also called cytotoxic T cells (Option A).
What are NK cells?The NK (Natural killer) cells are cytotoxic lymphocytes that trigger responses from the innate immune system.
Natural killer cells are one of the most important types of lymphocytes (white blood cells) in human cells.
These cells have cytotoxic properties because they produce cytotoxic granules and different cytokines.
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The transfer of genes from parents to their offspring is known as *
-differentiation
-heredity
-immunity
-evolution
Answer:
Heredity
Explanation:
The definition of hereditary is biological inheritance, or passing down traits.
If you soak seeds in water to soften them, and then cut them in half and stain them with iodine, most of the inside of the seed will change color, turning a purplish-black. What substance is the iodine reacting with to cause this color change?
Answer:
Starch
Explanation:
Starch consists of amylopectin and amylose, and is found in plants. In the presence of iodine, amylose starch turns a dark purple or blue color, due to the absorption of different wavelengths of light than before.
A. Identify the letter of the image that does NOT represent aseual reproduction. B. Explain how you can tell that this image is not aseual reproduction.
Answer:
D
Explanation:
Aseual reproduction is a type of reproduction in which new organisms are reproduce from single parent without production of gametes. But in D their is fusion of gametes (egg and sperm) therefore it explains to us that it is not an aseual reproduction.
What is the genotype of the parents if allele b is dominant over allele b?.
The dominant characteristic will be phenotypically manifested in offspring whose genotype could be BB or Bb.
What is genotype?An organism's genotype is made up of all of its genetic components. The alleles or variations that an individual possesses in a certain gene or genetic region are also referred to as the genotype.
The amount of copies of the each chromosome contained in that species, commonly known as ploidy, determines how many alleles a person can have for a certain gene. In diploid organisms like humans, there are two complete sets of chromosomes, which means that each person possesses two alleles for each gene. The dominant characteristic will be phenotypically manifested in offspring whose genotype could be BB or Bb.
Therefore, the dominant characteristic will be phenotypically manifested in offspring whose genotype could be BB or Bb.
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hello people ~
Potable water is
(a) ocean water
(b) groundwater at selected places
(c) river water
(d) ponds water
Answer:
Ground water
Explanation:
Potable water refers to drinkable water or water which is safe to drink
Ocean water is salty not drinkableRiver water may be impurePonds water may be dusty so impureOption B is correct
how is an increased in carbonin the atmosphere likley to affect coastal areas such as those in north carolina
Answer:
D
Explanation:
The amount of Carbon dioxide (CO₂) that is trapped in the atmosphere is released by the burning of the fossil fuels and from the industrial pollution. In addition to this, some amount of it also released by the animals and human beings. This stored CO₂ in the atmosphere is then transported to the oceans with the help of rainfall. When this CO₂ reacts with water it forms weaker acid, which is commonly known as the Carbonic acid. Due to this, the pH level of ocean water decreases. As a result of this, it affects the ocean water chemistry and the marine life. Due to this ocean acidification, the marine species namely the corals and various types of planktons are not able to form the hard parts like the shell and skeletal parts. This carbonate water dissolves the existing shells and erodes the particles away. The increase in the carbon content in the atmosphere will also lead to precipitation that will wash away the rock particles and other sediments, that are present in the coastal areas. In addition to this, the plants also will be affected due to this carbon containing water.
Sensory transduction of light/dark information in the vertebrate retina is accomplished by.
Answer:
Rods and cones
Explanation:
Quizlet
Biologists tell us that life on earth took billions of years to evolve into astronomy students and other examples of intelligent life. If we want to search for planets with intelligent life-forms that evolved over the same period of time that we did, what sorts of stars should we not bother searching around?.
The types of stars that we should not search for life around the Universe are O and B type stars.
What is a star?A star is a celestial body capable of producing huge amounts of heat and radiation in the form of light.
An O-type star (spectral class O) is a blue and/or white star that is characterized to be very hot and brilliant.
B-type stars are also luminous and they can be blue, but they can be differentiated by O-type stars by their spectra.
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Which of the following describes molusca?
A. a process in which molecules pass through a semi-permeable membrane from a less concentrated solution to a more concentrated solution
B. the phylum name for organisms that have a relatively simple body structure, which is evidence of their place in the early evolution of life
C. relationships in which plants or animals of different species may be dependent on one another for survival
D. a porous marine invertebrate who pulls water through its soft body in order to obtain oxygen and nutrition
Answer:
I belive that the answer is B
Explanation:
a and d are definately not it. Molusca sounds like a phylum name to me. Sounds very similar to mollusks.
Gregory is doing his experiment for the science fair. The above table shows the data he collected. Based on the table, what is the best description of what Gregory wanted to know?
What are the two places in a cell where i could find dna?
Answer:
Cell nucleus and mitochondria
Explanation:
brainliest please
1. Which of the following characteristics is absent in viruses?
A.
a protein capsid
B.
the ability to r e produ ce
C.
protein synthesis machinery
D.
the ability to develop gene mutations
2.Which of the following characteristics is present in both humans and archaea?
A.
the ability to maintain homeostasis
B.
the ability to as 3 xua lly reproduce
C.
a hierarchy of organ systems
D.
a cell nucleus
Which characteristic differentiates an angiosperm from a fern?
A.
the alternation of generations
B.
the presence of cotyledons
C.
the presence of vascular tissue
D.
the alternation of sporophytes
Answer:
DBDExplanation:
that's my answer
thank me later
Document 6: the geography of japan sample response: both england and japan were island nations and, as a result, were easily defendable. they both had many ports and good access to the ocean. both were commercial powers and had strong navies. which of these ideas did you include in your response? select all that apply. both were island nations. both had strong navies. both were strong commercially. both were physically small. both had many ports and good access to the ocean and trade.
Both were island nations and had strong navies.
Both were strong commercially and had many ports and good access to the ocean and trade.
Geography of England and JapanBoth England and Japan were island nations because both are surrounded by water. Both had strong navies due to advance in technology.
Both were strong commercially and economically due to production of large number of goods which make their economies very strong. Both countries had many ports and good access to the ocean and trade which make them a strong economic power.
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Answer:
A,C,E or 1,3,5
Explanation:
You are looking at a specimen under the microscope, what would you use to adjust the light being focused in on the slide?.
Condenser Lens is located under the stage which is responsible for focusing the light on the specimen.
What is Condenser Lens?The condenser lens collects light from sources and redirects the light beam so that it falls on the projector's lens system.
So we can conclude that condenser Lens is located under the stage which is responsible for focusing the light on the specimen.
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food, water, living space, and diesese are examples of what
Answer:
im pretty sure it is a habitat
The amount of food that can be produced in an given area is called
Food production is the quantity of food produced, processed, prepared in an area.
What is Food production area?Food production area refer to a geographical location where food products or their ingredients for human consumption are prepared, processed, repacked, handled or manufactured.
The food produced are localised in that area and can be exported to other place.
The food production area is normally known for a specific food manufactured in that area.
Therefore, Food production is the quantity of food produced in an area
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At room temperature, dry ice (carbon dioxide, CO2) changes directly from solid to gas. What happens as the solid dry ice turns into carbon dioxide gas?
A.CO2 molecules lose mass to become gas.
B.CO2 molecules release heat energy to the air.
C.CO2 molecules absorb heat energy from the air.
D.CO2 molecules react with oxygen and become gas.
Answer:
A
Explanation:
Carbon dioxide is a gas at room temperature.
When the solid dry ice turns into carbon dioxide gas, the carbon dioxide molecules release heat energy into the air. Thus, the correct option for this question is B.
What happens when the solid dry ice turns into carbon dioxide gas?When the solid dry ice turns into carbon dioxide gas, the process of sublimation occurs. This process of sublimation significantly converts the dry ice into a gas in the form of water vapor.
It may be revealed that dry ice is known for carbon dioxide in its solid state of matter. The unique property of this dry ice is that it ultimately turns from a solid to gas at room temperature. This is because it provokes water vapor in the air to be condensed into droplets of water thus constructing a fog appearance.
Therefore, the molecules of carbon dioxide release heat energy into the air. Thus, the correct option for this question is B.
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In these analyses, why are segments of chromosomes (haplotypes) rather than individual strs used to identify genetic relationships?
The type of analysis is not specified here, but haplotypes are used to identify phylogenetic and phylogeographic relationships.
Whta are haplotypes?The haplotypes are linear sequences of nucleotides whose order can be used to determine evolutionary relationships.
The haplotypes are very useful in phylogeny and phylogeography to study the features of species.
The term haplotype is broader than genetic sequence because a haplotype is more informative (a priori).
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The segments of chromosomes (Haplotypes) are used to identify genetic relationship because it carries almost all the information, properties, and characteristics of the individual genome.
What do you mean by Genetic relationship?Genetic relationships may be defined as the similarities in the sequence of the genome between the organisms of two or more species.
Haplotypes are used to identify the evolutionary relationships between the species. It also analyzes the various features that a species possess in its genome.
Therefore, it is well described above.
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What is always at the start of natural selection?
A: reproduction
B: mutation
C: passing on genes
Answer:
passing on genesExplanation:
Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.
write all name of this figure.
In the second figure kindly ignore the tubectomy part.
Which of the following is the most likely flow of energy in an aquatic ecosystem? a. Phytoplankton → mammal → zooplankton → fish b. Phytoplankton → zooplankton → fish → mammal c. Zooplankton → phytoplankton → mammal → fish d. Mammal → fish → zooplankton → phytoplankton.
In this question, the correct order of flow of energy in an aquatic ecosystem is Phytoplankton → zooplankton → fish → mammal.
What do you mean by an Ecosystem?An environment may be defined as the complex of physical, chemical, and biotic factors (such as climate, soil, and living things) that act upon an organism or an ecological community and ultimately determine its form and survival.
The flow of energy in an aquatic ecosystem depends on the phytoplankton which are known as the producers of an aquatic ecosystem.
Therefore, the correct order of flow of energy in an aquatic ecosystem is described above. Hence, the correct option is B.
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Answer:
b
Explanation:
What is the renewability of nuclear power?
It is a nonrenewable energy source.
It can use the same fuel cells repeatedly.
It is an unlimited, clean energy source.
It can be replenished, but not by fusion.
Answer: A
Explanation:
Answer: It can be replenished, but not by fusion.
Explanation:
25 A 10 meter by 10 meter plot of land has 25 trees
on it. What is the population density of the trees?
A. 0.025 trees/m2
B. 0.25 trees/m2
C. 2.5 trees/m2
D. 25 trees/m2
Answer:
stuck on the same question mg
Explanation:
suggest two steps to save water
Answer:
There are a few easy things you can do at home to help relieve the strain on your local water supply while also saving money. While brushing your teeth, turn off the faucet. When you have a full load, just use the washing machine and dishwasher. Use a low-flow shower head and aerators on the faucets. Repair any leaks.
Explanation:
Answer:
use water carefuly.
use when needed.
Explanation:
Explain the environmental benefits of recycling paper products.
No links please
Answer:
Paper recycling saves natural resources, saves energy, reduces carbon dioxide emissions, and keeps landfills free for other types of waste that cannot be recycled. Recycling
1 ton of paper saves 17 trees, 7,000 gallons of water, 380 gallons of oil, 3.3 cubic feet of landfill space, and 4,000 kilowatts of energy. Greenhouse gas emissions Carbon equivalent (MTCE).
Explanation:
If anyone has read the book “When no one is watching”, may someone tell me the theme of the book? I need this for a report since I’m unsure what the theme is
Answer: The Theme of the book "When no one is watching" is
questioning of reality
Explanation: nothing
In photosynthesis, what type of energy do we end up with?
I need the answers asap
I will mark it
Explanation:
Adenosine triphosphate energy
Answer:
In photosynthesis, light energy is converted to chemical energy.
Compare and contrast a fossil with a trace fossil. Please help fast. I'm being timed.
Answer choices:
A. Both fossils and trace fossils are types of rocks. However, a fossil is created with large amounts of heat, and a trace fossil is created by large amounts of pressure.
Both fossils and trace fossils are types of rocks. However, a fossil is created with large amounts of heat, and a trace fossil is created by large amounts of pressure.
B. Both fossils and trace fossils are created by organisms from very long ago. However, a fossil is created by the organism itself, and a trace fossil is created by the activity of the organism rather than the organism itself.
Both fossils and trace fossils are created by organisms from very long ago. However, a fossil is created by the organism itself, and a trace fossil is created by the activity of the organism rather than the organism itself.
C. Both fossils and trace fossils are created by organisms from very long ago. However, a trace fossil is created by the organism itself, and a fossil is created by the activity of the organism rather than the organism itself.
Both fossils and trace fossils are created by organisms from very long ago. However, a trace fossil is created by the organism itself, and a fossil is created by the activity of the organism rather than the organism itself.
D. Both fossils and trace fossils are types of rocks. However, a trace fossil is created with large amounts of heat, and a fossil is created by large amounts of pressure.
Answer:
I'm going to go with b.
Explanation:
For this assignment, you will develop a model to describe the cycling of matter and the flow of energy
among living and nonliving parts of an ecosystem. This project includes both an individual and a group
part. On your own, you will research an organism that is assigned to you. In your group, you will combine
your organism with the organisms researched by other students to create a food web. Together, you will
write two short paragraphs explaining how energy and matter move through the food web.
Answer:
All I can tell you is when energy is moves through the food web it gets divided by 10
plant energy =1 0,000 (example)
that plant gets eaten by a small animal
small animal's energy gained from the plant = 1,000
a large animal then eats the smaller one
large animal's energy gained from the small animal = 100
Explanation:
I am sorry you will have to write your two short paragraphs on your own.
I don't want you to get in trouble for plagiarism.
I'm super sorry I hope this helped a bit!
three viral diseases for which there is not a vaccine
Answer:
Herpes, Ebola, polio
Explanation:
Answer:
there are quite a few diseases without a vaccine, but here are three of them
Explanation:
HIV/AIDS
Hookworm infection
Malaria