Answer:
Humans are multicellular, complex organisms. The cells inside our bodies are “specialized.” This means that each type of cell performs a unique and special function. For this reason, each of the 200 different types of cells in the body has a different structure, size, shape, and function, and contains different organelles.
For example:
Cells in the brain may be longer in shape so they can transmit signals more efficiently.
Cells of the heart have more mitochondria because they need a lot of energy.
Cells in the respiratory system are responsible for taking up oxygen and releasing carbon dioxide.
All the cells work together to keep the human body running efficiently.
how are organisms in the domain archaea different from those in the domain eukarya?
a: archaea are multicellular organisms
b: archaea hold genetic information in DNA
c: archaea have no membrane around their organelles
d: archaea have mitochondria inside their cells
Organelles in the domain of Archaea do not have membranes surrounding them, in contrast to those in the domain Eukarya. So, the correct option is C.
What are Archaea?The realm of single-celled organisms is called Archaea. These microbes are prokaryotes because they lack cell nuclei. The term "archaebacteria," which was used to describe archaea when they were first categorised as bacteria, is no longer in common usage.
Single-celled microorganisms known as archaea lack membrane-bound organelles and a cell nucleus. Archaea, like other living things, have a semi-rigid cell wall which shields them from their surroundings. Organelles in the domain of Archaea do not have membranes surrounding them, in contrast to those in the domain Eukarya.
Therefore, the correct option is C.
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Which role of Fungi has the most effect on maintaining the plant population in an
ecosystem?
A- Fungi are a major food source for most animals.
B- Fungi produce approximately 75% of the oxygen on Earth.
c- Fungi are heterotrophic by absorption and return nutrients to the soil.
D- Fungi found in the gut of animals assist in digestion.
Answer: I think C Fungi are heterotrophic by absorption and return nutrients to the soil.
Explanation:
plz help asap! The activity of many cellular enzymes is regulated by activators and inhibitors. Enzyme activity is also regulated in eukaryotic cells by which of the following mechanisms?
Compartmentalization and restricting enzymes to specific organelles or membranes
Secreting enzymes out of the cell
Limiting the availability of substrates
Changing the primary structure of enzymes
Answer:
compartmentalization and restricting enzymes to specific organelles or membranes
Cellular steroid gradients are produced by the compartmentalization of enzymes into various organelles of a cell, and this might impact how well the various steroid products are balanced. Thus, option A is correct.
What is Compartmentalization?In biology, the biomembrane, or biological membrane, effectively compartmentalizes enzymes by allowing them to perform only certain functions within a limited area.
The enzymes may be located on the membrane surface or inside the defined compartments.
A percentage of the enzymes would likely not work or their ability to catalyze reactions would likely be insufficient if there was just one cellular compartment.
This is because enzymes catalyzing distinct reactions frequently have variable temperature and pH optimums.
Therefore, Compartmentalization and restricting enzymes to specific organelles or membranes.
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Which molecule is responsible for capturing energy from photons (light particles)? A. Chlorophyll B. NADPH C. ATP D. Hydrogen ions
Answer:
chlorophyll
A pigment molecule in the photosystem absorbs one photon, a quantity or “packet” of light energy, at a time. A photon of light energy travels until it reaches a molecule of chlorophyll.
Explanation:
PLS ANSWER QUICK What do you think would happen to each species if the water became too cloudy for sunlight to penetrate?
Answer: Turbidity blocks the sunlight that plants need to produce oxygen for fish and other aquatic life. ... One effect is an increase in rooted aquatic plants, since sunlight can now penetrate to greater depths.
Explanation:
ill) Age changes in white blood cells include decreases in the number and rate of release
of stored cells, rate of movement, ability to be chemically attracted to areas, and
proportion of cells capable of performing phagocytosis. Explain how these changes will
affect the human body.
(2) PLEASE HELP... Reliable answer will receive brainliest.
Answer:
it will reduce the ability of white blood cells to guide against disease
convection currents in the (blank) are partially responsible for the movement of tectonic plates. A. stratosphere b. geosphere c. lithosphere d. asthenosphere
Answer:
asthenosphere
Explanation:
bc its liquid, and bc it flows, creating movement fot the plate underneath us to move
Which of these factors makes nuclear energy unsustainable?
A. Nuclear energy requires wind turbines.
B. Nuclear power plants cost the most to build
c. Nuclear energy generates too much toxic waste.
D. Nuclear power plants last the longest.
Answer:Nuclear energy generates too much toxic waste.
Explanation:
got it right on the quiz
A sperm cell has a tail 40 micrometers long and a student draws it 40mm long. Calculate the magnification
Answer:
The formula for calculating magnification is:
Magnification = Size of drawing / Actual size
Size of drawing = 40 mm
Actual size = 40 micron meter
Convert 40 mm to micron unit: 40 * 1000 = 40,000 micron
Magnification = 40,000 / 40 = 1000.
The magnification is 1000 X.
This answer means that the drawing is 1000 times bigger than the actual size of the cell.
A V-shaped valley, like the one shown, is a narrow valley with steep sides that appear to form the shape of a "V." Which statement best explains how this type of valley is typically formed? A) They are formed by weak streams, slowly wearing away rock over time. B) They are formed by forceful streams, cutting down into rock over time. Eliminate C) They are formed by massive mountain glaciers slowly moving down slopes. D) They are formed by forceful winds moving between the walls of the valley.
Answer:
The answer is B
Explanation:
In the picture there is 2 streams also I took the question myself for you and the answer was B.
This type of valley is typically firmed by forceful streams cutting down into rock over time. So the correct option is B.
What is a valley?Valley: an extended depression on the surface of the Earth. Rivers are most often responsible for draining valleys, which can be found on relatively level plains or in between groups of hills or mountains. Rift valleys are those valleys created by tectonic activity. Gorges are the name given to similar-looking, extremely deep, narrow valleys. Despite being possible in different geological contexts, both of these latter kinds are frequently cut in strata with a flat topography.
There is potential for the land surface to develop into the well-known patterns of hills and valleys wherever there is enough rainfall. In fact, there are hyperarid regions with little activity. There are also geomorphological conditions where water cannot concentrate on the ground surface due to the permeability of the rocks or sediments causing excessive infiltration.
Therefore the correct option is B.
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Name a herbivore in this food web.
Caterpillar is one of the herbivores.
What term shows that life on earth has not always been the same as it is now 1. Mantle 2.fault 3.fossils
Answer:
The answer is number 2. Fault.
(ONLY ANSWER IF YOU KNOW)
The excerpt below was written by Henry Stimson in 1941:
The atomic bomb was more than a weapon of terrible destruction, it was a psychological weapon
What did Stimson mean by this statement?
A. US leaders had tricked the Japanese into thinking they were more powerful than they were
B. Skillful use of the atomic bomb could force opponents to make concessions.
C. The atomic bomb was an ineffective way to end war
D. The atomic bomb was not quite as dangerous as many people thought
Answer:
C
Explanation:
The atomic bomb was an ineffective way to end war
Viruses can be transmitted through air, water food, insect bites, and direct skin contact. Once a virus gains entry to the body, it invades a host cell in order to -
Answer:
Explanation:
When it comes into contact with a host cell, a virus can insert its genetic material into its host, literally taking over the host's functions. An infected cell produces more viral protein and genetic material instead of its usual products.
7) What percentage of ppm of dissolved oxygen indicates good water quality?
a) 6.7
b) 8
c) 4.5
d) Below 4.5
Answer:
The answer is c. 4.5
In this Landsat image of a rain forest, healthy vegetation appears red and deforested areas appear light blue. What explains the
difference in colors?
A)
Colors are assigned to different reflected sound waves.
B)
Colors are assigned to different absorbed electromagnetic energy.
Colors are assigned to different reflected bands electromagnetic waves,
D)
These are the colors of the reflected visible light on Earth's surface.
Answer:
Colors are assigned to different reflected bands electromegnetic waves.
Explanation:
Use a punnett square to calculate the following:
George is the youngest child in a family that includes 4 children. All of the children have the recessive phenotype-attached earlobes. However both parents have unattached earlobes, the dominant trait. Use the letters G. g and answer the following:
What is the genotype of the mother?
What is the genotype of the father?
What percentage of the offspring would express the recessive trait?
Answer:
Father - Gg
Mother - Gg
25 percentage
Male cats are either black (B) or orange (O). Females are black, orange, or calico, which has patches of black and
orange. Calico is formed from the codominance between the two alleles in the heterozygote, so a calico cat is (XB
xº). Give the genotype and phenotype ratio of a cross between an orange male cat and a calico cat.
When a cell or organism only has one rony of each chromosomes
Answer:
They deleted it idek why but HAPLOID
Explanation:
Scientists find evidence of a large meteor impact on the coast of the Yucatán Peninsula in Mexico. What can the scientists most likely expect to find in the layers of rock that are about the same age as
the impact?
evidence of the mass extinction of many species
evidence of a gradual change of one species over time
evidence of a rapid change in one species
evidence of the stability of many species over time
Answer:
evidence of a gradual change of one species over time
Explanation:
Scientists can most likely expect to find evidence of the mass extinction of many species in the layers of rock that are about the same age as the impact. Therefore, option (A) is correct.
What is mass extinction?Mass extinction refers to a widespread and rapid decrease in the biodiversity on Earth, where a large number of species become extinct within a relatively short period of time.
The impact of a large meteor on the Earth can cause widespread destruction and have far-reaching consequences, including the extinction of many species. The impact can cause a global environmental crisis, which can include the release of massive amounts of dust and debris that block sunlight, leading to a drop in temperature and changes in climate.
These changes can have catastrophic effects on living organisms, particularly those that rely on photosynthesis for survival. As a result, scientists can expect to find evidence of the mass extinction of many species in the layers of rock that are about the same age as the impact.
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Question 5
What is the advantage of placing telescopes in space? Select the best answer from the choices below.
Oь
Space telescopes are stronger
Space telescopes are above the distortion of Earth's atmosphere, clouds, and light pollution
Only space telescopes can observe the most distant stars and galaxies
Space telescopes are closer to the objects scientists want to observe
Oc
Od
Answer:
I think its c, because that's the correct definition of a telescope. It is because if telescope weren't there, we wouldn't be able to view planets or skies in the world.
Explanation:
pls mark me brainliest
What factor most affects whether a mutation will be passed to offspring?
ANSWER PLEASEEEEEEE
Answer:
Mutations are only passed on to offspring when they occur in germ cell DNA, which are the cells that create sperm or ova. ... The mutation will be inherited only if it occurred on a chromosome in either the sperm cell or the ova cell out of many that eventually unite to form a zygote.
They are present in all body cells and can be passed down to new generations. Acquired mutations occur during an individual's life. If an acquired mutation occurs in an egg or sperm cell, it can be passed down to the individual's offspring. Once an acquired mutation is passed down, it is a hereditary mutation
I hope this helps.
Read the paragraph from the section "Pea Plants And The Punnett Square."
A pea plant could have one copy of the height gene that coded for "tall" and one copy of the height gene that coded for
"short." The tall allele is "dominant," and this means that it can mask the other allele. The short allele is called
"recessive." The allele combination of tall-short would result in a tall plant since the tall allele is dominant.
Which option is the BEST definition of the word "mask" as used in the paragraph above?
A pea plant could have one copy of the height gene that coded for “tall” and one copy of the height gene that coded for “short”. The tall allele is “dominant”, and this means that it can mask the other allele.
Answer:
Explanation:
Is a reflex part of the central
nervous system, the peripheral
nervous system, or both? Explain.
Answer:Because the peripheral nervous system transmit reflex impulses from sense organs to central nervous system and then back to the sense organs. So both the Central nervous system and the peripheral systems are involved.
To understand a bit better.....
One of our body parts consists of a nervous system it is a complex network of neurons and cells that carry pieces of information to and from the brain and spinal cord to various parts of the body.
So in conclusion...
Yes! The Central nervous system and the peripheral systems are involved!So therefore your question is correct!
Hope this helps!
-Tobie The Dog <3
(p.s a photo has been listed so you know what the nervous system is!)
Answer this plsss
And correct the first if im wrong
One way asexual reproduction differs from sexual reproduction is that it requires only one
organisms and, thus, one set of genes. Which of the following would you expect in the genetic
material of sexually reproducing organisms? *
Climax community- most stable community that takes hundreds of years to develop. The types of organisms change due to __?__.
competition
random chance
being the luckiest
Answer:
competition
Explanation:
An ecological community is a naturally occurring group of native plants, animals and other organisms that are interacting in a unique habitat. Its structure, composition and distribution are determined by environmental factors such as soil type, position in the landscape, altitude, climate and water availability(Department of Agriculture).
A climax community refers to the last stage of ecological succession in which the community remains relatively unchanged unless it is destroyed by events such as fire or human interference.
Competition between species in the same habitat is an important biotic factor in discussing ecological succession and the emergence of climax communities. Competition leads to a drop in the diversity of species in a given ecosystem because the dominant species live on and reproduce while the other species die off.
Prokaryotes do not have a nucleus.
Explanation:
Prokaryotes do have their genomic DNA concentrated and localized to a small area within cell. so its not accurate to say that they do not have a nucleus.
Which is the thinnest of Earth's spheres?
Answer:
The crust is the thinnest of Earth's spheres
Explanation:
Hope this helps!❤ヾ(•ω•`)o
PLS ANSWER How is sunlight important in your life? Describe some of the positive and negative effects of sunlight.
Answer:
Sunlight is important in my life because you need it if you have a plant and you want to take care of the plant.Postive effects of sunlight is Sun water and needing health
Answer:
I know one reason is that plants need sunlight, and without plants we would all die. This is because plants need sun, and if we didn't have plants, we would be robbed of that resource, and then animals who eat the plants would die, so meat would be taken from us as well and we would all DIE.
Given Brainly...
Why should we recycle?
Answer:
because we are humans its
Explanation:
NATURAL
