Answer:food
Explanation:
The outer structure of the neuron is made of a
a semipermeable membrane
What organisms, other than bacteria, are able to perform nitrogen fixation?
a.
Viruses
c.
Algae
b.
Trees
d.
Protists
Answer:
Algae is able to perform nitrogen fixation.
Answer:
The answer is C.
Explanation:
I just took the test and the answer was c.
I need help with and i will give you a branlist and it’s science
Answer:
B
Explanation:
Nitrogen has 7 protons
describe the impact of technology on the environment today
Question 1
Choose all that apply: The cells in the human body that undergo mitosis are:
a
skin cells
Ser cells
liver cells
muscle cells
Answer:
liver skin and muscle cells
Explanation:
The cells in the human body that undergo mitosis are -
skin cells liver cellsmuscle cellsCell division is the process of producing new daughter cells from existing parent cells. The types of cell division include mitosis and meiosis.
Mitosis takes place in all eukaryotic cells which is a process of cell renewal and growth.Somatic cells, adult stem cells, and the cells in the embryo are the main cells that undergo mitosisSomatic cells are the regular cells in the body of multicellular organisms such as muscle, liver, and skin cells.Thus, The cells in the human body that undergo mitosis are -
skin cells liver cellsmuscle cellsLearn more:
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what are the basic building blocks of fats?
Answer:
Fatty acids are the building blocks of the fat in our bodies and in the food we eat. During digestion, the body breaks down fats into fatty acids, which can then be absorbed into the blood. Fatty acid molecules are usually joined together in groups of three, forming a molecule called a triglyceride.
Pls need help the question is up there already giving BRAINLEST to a good answer
Answer:
The last choice. Think of planets, the bigger they are, the stronger they attract to one another
Explanation:
hope it helps
Which is a main function of lipids?
O providing energy storage
O transmitting genetic information
O forming bone and muscles
O fighting infection and disease
providing energy storage
Which of the following is nota cation? mercurous ion sulfate Ca 2+ iron(III) ion
why do plant cells need chloroplast
Answer: Sample Response: Plant cells need chloroplasts so they can capture light energy to make food within the cells. Plant cells make their own food to produce energy that the cells use.
Why is it dangerous or bad for babies to be born too small or too early?
how Polar molecules can dissolves other polar molecules?
Explanation:
polar molecules do not have a symmetrical distribution of charge. one part of the molecule will be more negative and another part will be more positive which allows polar substances to dissolve each other.
Which factors involving the activities of people are a threat to biodiversity? pollution and succession habitat loss and predation poaching and habitat loss succession and poaching
Both poaching and habitat loss are a threat to biodiversity
Habitat loss refers to the destruction of natural ecosystems and consequent reduction in the amount of habitat available for the species living in a given area. Habitat loss is the greatest threat to ecosystems biodiversity and conservation worldwide by deteriorating natural areas and thereby reducing species distribution ranges. Habitat loss is primarily due to the expansion of human populations and human activities (i.e., mining, logging, trawling, industrial production, urbanization, etc.).
Poaching refers to the illegal killing of wild animals for different reasons (e.g., meat, recreation, etc.), in violation of international, federal, state/provincial, or local laws. Poaching can drastically reduce the number of organisms in natural populations, thereby this human activity can reduce genetic diversity and eventually may lead to the extinction of natural populations/species.
In conclusion, both habitat loss and poaching can reduce the number of organisms, reduce biodiversity and eventually cause the extinction of natural populations.
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Answer:
C. Poaching and habitat loss
Explanation:
Test 100%
Also, good luck to whoever may need this anwer<3
In the thylakoid membranes, what is the main role of the antenna pigment molecules?
a) split water and release oxygen to the reaction-center chlorophyll
b) harvest photons and transfer light energy to the reaction-center chlorophyll
c) synthesize ATP from ADP and Pi
d) concentrate photons within the stroma
Answer: Option B.
harvest photons and transfer light energy to the reaction-center chlorophyll
Explanation:
In the thylakoid membranes,the main role of the antenna pigment molecules is harvest photons and transfer light energy to the reaction-center chlorophyll because the photon of light move until it get to a molecule in the chlorophyll. When it reaches the molecule, it causes an excitation of electrons in the chlorophyll. The energy then present allow it to break free from the chlorophyll atom, which indicate chlorophyll donating an electron and the energy that is absorbed is then converted to heat.
the all-or-none response of a neuron is similar to:
Answer:
The all-or-none law is a principle that states that the strength of a response of a nerve cell or muscle fiber is not dependent upon the strength of the stimulus. If a stimulus is above a certain threshold, a nerve or muscle fiber will fire.
The all-or-none response of a neuron is similar to a gun that either fires or doesn't. The correct option is B.
What is an all-or-none response?According to the all-or-none principle, signal transmission between neurons is solely dependent on the initial threshold being met rather than the stimulus's intensity.
In other words, neurons either fully or totally avoid transmitting an impulse via the synapse to the subsequent neuron.
According to the all-or-none law, the strength of a nerve cell's or a muscle fiber's response is not influenced by the stimulus's intensity.
A nerve or muscle fiber will activate if a stimulus is present above a predetermined threshold.
Therefore, the correct option is B. a gun that either fires or doesn't.
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The question is incomplete. The missing options are given below:
A. a dimmer switch that can provide a wide range of light.
B. a gun that either fires or it doesn't.
C. a fuse that cannot overload the circuits.
D. a match that doesn't always light when it is struck.
2. How does the development of a nervous system and sense organs relate to increasing complexity of multicellular animals?
The development of nervous system and sense organs in multicellular organisms has led to evolution of species in a more complex manner.
Complexity of multicellular organisms• The development of nervous system and sense organs has permitted for a greater level of perception and better equipped organisms.
• It has permitted the organisms to collect resources, react to their surroundings, and take advantage of their surroundings.
• This has resulted in the organisms to survive longer and accommodate into bigger types of body.
• Such amendments has thus permitted organisms to become more complex and move up the food chain.
Thus, the development of nervous system and sense organs is associated with increasing complexity of multicellular animals.
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QUESTION 1 to the lungs The spinal cord is a. anterior b. proximal c. posterior O d. distal
Answer:
Anterior
Explanation:
I googled it your welcome
Certain kinds of shells are always found in rock layers lower than layers with plant fossils. Dinosaur fossils show up only in layers above or with plant fossils what does this tell you about When these organisms lived
Answer:
This shows that once animals were on the surface there were plants for them to eat.
Dinosaur fossils show up only in layers above or with plant fossils. This shows that dinosaurs were animals that lived with plants and feed on plants.
What are fossils?Fossils are the remains of plants, animals, and other substances that are preserved under the layers of rocks and earth. They are the preserved form that gives the knowledge of organism present in before times.
Dinosaurs lived 65 million years ago, but still, their bones and remains are found on earth. They were found with the fossils of plants, so this tells us that plants were also present at the time of their presence, and they fed on plants.
Thus, only strata above or in conjunction with plant fossils do dinosaur fossils appear. This demonstrates that dinosaurs were also plant-eating and lived with plants.
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Select the correct answer. Which property of a substance can be determined using a pH indicator? A. acidity B. boiling point C. density D. electrical conductivity E. thermal conductivity
Answer:
Acidity
Explanation: I took a test :)
What is an example of how technology is capable of changing society?
Technology can alter community through what becomes famous , like the cell phones that most people today have with them, and the fact that they have developed into phones with computer ability.
There are certain situation that arise as a outcome of a growing use of technology that impact the change, like Carpal Tunnel Syndrome causing shifts in the workplace, or a growing need for more technology like floppy discs changing to compact discs and DVD's.
How does technology change society?Technology has a more favourable impact on humans or society in comparision of negative impact.
It makes our life is more easier and cite us by providing resources or tool that make our life much easier.
Thus, Technology can Alter society through what becomes famous, like the cell phones that most people today keep with them, and the fact that they have developed into phones with computer ability.
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Answer:
Technology can alter community through what becomes famous , like the cell phones that most people today have with them, and the fact that they have developed into phones with computer ability.
There are certain situation that arise as a outcome of a growing use of technology that impact the change, like Carpal Tunnel Syndrome causing shifts in the workplace, or a growing need for more technology like floppy discs changing to compact discs and DVD's.
Explanation: edgen 100%
essential amino acids cannot be produced by the body,so they must come from our diet.we can get them from eating's foods that contain which biomolecule
Answer:
Essential amino acids cannot be made by the body. As a result, they must come from food.
The 9 essential amino acids are: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.
Explanation:
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You travel to Mars. You obtain a specimen that appears to have cells and responds to warm temperatures. Would this be classified as living or nonliving? living nonliving
Answer:
LIVING
Explanation:
I took the test and got it right :)
What does the nucleus consist of
Answer:
If you are talking about atomic nucleus then it's consist of protons and neutrons.
Explanation:
But if you're talking about cell nucleus
Then,
It contains nuclear envelope, nuclear lamina, nucleolus, chromosomes, nucleoplasm .
Answer:
Protons and neurons.
Explanation:
The atomic nucleus consists of Protons and neurons
are human skin cells from inside the mouth prokaryote or eukaryotic?
Answer:
Eukaryotic
Explanation:
why is it harder for a mountain climber to breathe when they are the top of a tall mountain like mount everest
Answer:
Hmm.
Explanation:
Because the air gets thinner the higher the elevation (like on Mount Everest).
It is harder for a mountain climber to breath when they are thr top of a tall mountain because there is lack of oxygen in the high evalation like mount everest
Which organ system is responsible for coordination and integration of bodily functions as well as detecting changes inside and outside the body
According to the question, the answer is endocrine system it works with the nervous to control the internal organs it helps with regulation of the body hormones growth and reproduction.
What are 3 main functions of the endocrine system?Makes Hormones for Mood, Development, and Growth. Many different vital hormones are created and controlled within the endocrine system.Sends Hormones into Your Bloodstream.Regulates the Release of Hormones.Thus, endocrine system it works with the nervous to control the internal organs.
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Under which circumstance does Mendel’s principle of independent assortment hold? a. only when there is crossing over b. only when traits are tightly linked (close together) on the same chromosome c. only when traits are on different chromosomes d. only when the traits are not influenced by selection
Answer:
c
Explanation:
Mendel's principle of independent assortment holds only when traits are on different chromosomes.
The independent assortment principle states that genes assort independently of one another. In order words, traits are independently inherited by offspring from parents. For example, the trait for eye color is independently inherited from skin color, height is independently inherited from feet size, and etc.
This principle only holds true when genes are located far away from one another on the same chromosome or when they are on different chromosomes entirely. Once genes are close to one another on the same chromosome, they become linked together and no longer independently inherited.
The correct option is c.
Which is an example of mechanical weathering?
a. Feldspar reacts with the hydrogen in water to form clay, which crumbles easily.
b. A large rock falls from a cliff and breaks as it hits other rocks.
c. Oxygen reacts with iron, creating rust
d. Limestone dissolved by acid rain to create limestone caves
b. A large rock falls from a cliff and breaks as it hits other rocks
A protein has 100 peptide bonds. How many amino acids does it have? Name the four elements found in amino acid.
Answer:
twenty amino acids
Explanation:
and
carbon
nitrogen
oxygen
hydrogen, for the second question
What are the roles of the two test
groups in this
investigation?
A. Both are experimental groups, and each
Individually shows the effect of the direction
B. Dhe is the experimental group and one is the
control group, and together they show the
ellect of the direction of light.
C. Both are control groups, but only Test Group)
shows the effect of the direction of light.
D. Both are experimental groups, but only Test
Group 1 shows the effect of the direction of
light
Answer:
We would also need to see the investigation to be able to help sorry