Explanation:
Oxygen diffuses easily through air, and the soil stays aerobic because oxygen comes in from the surface. But after a rain, the soil pores and the worm burrows fill with water. The worms can't get enough oxygen when the soil is flooded, so they come to the surface to breathe.
Question 1
Ozone prevents harmful X-rays from reaching earth.
( True or false )
Question 2
Ozone layers loss is caused by chlorofluorocarbons.
( true or false)
Answer:
answers are:
ANSWER 1. TRUEANSWER 2. FALSEPLS FOLLOW ME.....
AND ALSO MARK AS BRAINLIST
Spontaneous generation, the claim that living things can come from nonliving things, was an integral part of the theory of how life began and evolved for many years. In the 1600s, Francesco Redi was the first scientist to try to disprove spontaneous generation. Louis Pasteur, in 1859, finally disproved this claim with scientific evidence.
Answer:
The answer is Scientific thoeries are a culmination of many scientific investigations drawing together all current evidence.
Explanation:
The diagram below shows a type of virus called a bacteriophage. Select the name of the structure that the virus can use inside a host cell to produce new virus particles.
Answer:
It's the DNA..........
The structure that the virus can use inside a host cell to produce new virus particles is the DNA.
Bacteriophage which literally means bacteria eater is a type of virus that has the ability to infect bacteria.
Basically all bacteriophages consist of nucleic acid molecule (DNA) which is surrounded by a protein coat( the capsid head).
It also possess a tail sheath through which it transfers it's DNA into host cell.
Eventually, new bacteriophages assemble and burst out of the bacterium in a process called lysis.
Therefore, the structure that the virus can use inside a host cell to produce new virus particles is the DNA.
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Francois Jacob and Jacques Monod studied Escherichia coli (E. coli) bacteria by using lab experimentation. What
revision to their initial hypothesis did they come up with?
The answer is two operons control bacterial respiration
Answer:
two operons control bacterial respiration
Explanation:
A tissue is a group of cells which perform essentially the same function. true or false
Answer:
True
Explanation:
A tissue is a group of cells that does the same function.
Which phrase best defines evolution by natural selection? pls help
Answer:
A process of change in a species over time. Interbreeding among members of a population results in. No change in the relative frequencies of alleles in the gene pool.
Answer:
Process where certain individuals in a population survive because they are better adapted to their environment, so they are more likely to pass on their genes. The mechanism of evolution.
The endocrine system regulates the body through hormone release. Like the nervous system, what does the endocrine system help maintain?
A. homeostasis
B. reflexes
C. chemicals
D. neurons
Answer:
How is the endocrine system related to the nervous system in terms of its regulatory activity?
For one, the endocrine system uses chemical signaling (hormones, produced by glands) while the nervous system uses electrical signaling (neural impulses). The signal transmission of the nervous system is fast because neurons are interconnected, but the functions are more short-lived.
Explanation:
PLEASE HELP. I REALLY NEED THIS!!!!
Answer:
In nature, populations are usually evolving. The grass in an open meadow, the wolves in a forest, and even the bacteria in a person's body are all natural populations. And all of these populations are likely to be evolving for at least some of their genes. Evolution is happening right here, right now!
To be clear, that doesn't mean these populations are marching towards some final state of perfection. All evolution means is that a population is changing in its genetic makeup over generations. And the changes may be subtle—for instance, in a wolf population, there might be a shift in the frequency of a gene variant for black rather than gray fur. Sometimes, this type of change is due to natural selection. Other times, it comes from migration of new organisms into the population, or from random events—the evolutionary "luck of the draw."
I hope this helps a little bit.
Please help!!!!!!!!
Define evolution in genetic terms.
Answer: The process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.
Explanation:
Answer:
Evolution is defined as the process of growth and development or the theory that organisms have grown and developed from past organisms. ... An example of evolution is the theory started by Charles Darwin that theorizes about how humans came to be in their present form.
hope this helps.
name the ecological instrument used in measuring aquatic factors
Answer:
Several tools aid ecologists in measuring abiotic factors, including thermometers, altimeters, pH meters and many other devices.
Carrots that have been cut into pieces have a shorter
shelf life than whole carrots. Explain this observation
using factors that affect rate of reaction.
Science 10
What would happen if the rate of evaporation reduces
Answer:
When temperature and wind speed are constant, but humidity increases, the rate of evaporation will decrease. When wind speed and humidity stay constant, and temperature increases, then the rate of evaporation will increase because warmer air can hold more water vapor than colder air.
Answer:
if the rate of evaporation reduces water cylcle will stops and amount of water present in the world will be increase.humifity will be more.
Why is it difficult to fossilize large animals?
Answer:
The onerous elements of organisms, like bones, shells, and teeth have a far better likelihood of changing into fossils than do softer elements. One reason for this can be that scavengers typically don't eat these elements. onerous elements conjointly decay additional slowly than soft elements, giving longer for them to be buried.
Explanation:
hi i need your help guys! Using the periodic table, fill in the following table with the number of electrons in each energy level of the element given.
n = 1 level n = 2 level n = 3 level n = 4 level
Element (maximum 2) (maximum 8) (maximum 18) -----------
Carbon- ________ ________ ________ _______
i think its
carbon- 2 (there are two in the n=1 level) 4 (there are four in the n=2 level)
i might be wrong, but hope this helps :)
Electrons in atoms are arranged in energy levels. The electrons in the energy levels of carbon are;
n= 1 ------ 2 electrons
n = 2 ----- 4 electrons
n =3 ----- 0 electrons
n = 4 ----- 0 electrons
Carbon has the electronic configuration; 1s2 2s2 2p2.
This means that there are only two electrons in the n-1 level and there are four electrons in the n=2 level.
This makes a total of six electrons in carbon as shown.
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Meiosis is necessary for sexual reproduction in eukaryotic organisms. Which of the following statements below regarding meiosis is TRUE? *
A. Meiosis forms two cells all with the same genetic material
B. Meiosis forms two cells all with different genetic material
C. Meiosis forms four cells all with the same genetic material
D. Meiosis forms four cells all with different genetic material
Answer:
D. Meiosis forms four cells all with different genetic material
Explanation:
They are haploid cells and each cell only had one set of chromosomes. Meiosis results in variation.
The central nervous system (CNS) is composed of the spinal cord and brain. ALL BUT ONE of the choices below describe
function of the spinal cord.
A)
serves as a minor reflex center
B)
conducts motor information from the brain to various
effectors
C)
processes sensory inputs and initiates appropriate motor outputs
D)
conducts sensory information from the peripheral nervous system to the
brain
Answer:
c)
Explanation:
The central nervous system (CNS) processes sensory inputs and initiates appropriate motor outputs. Therefore, option C is correct.
What is the central nervous system?The brain and spinal cord make up the central nervous system. The brain directs our thoughts, memories, movements, and emotions. Between the brain and the nerves that run throughout the body, the spinal cord relays messages.
It regulates cognition, personality, memory, emotion, speech, and the capacity to feel and move. The corpus callosum, a band of nerve fibers in the middle of the brain, connects the left and right hemispheres of the brain.
Thus, the central nervous system (CNS) processes sensory inputs and initiates appropriate motor outputs. Therefore, option C is correct.
Learn more about CNS, here:
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A mouse running away from the sound of an owl’s wings is an example of the mouse’s ability to
Answer:
Survive
Explanation:
There may be multiple answers, but the mouse is able to:
Reflexes
Sense
Movement
Instincts
Be aware
These factors can help escape the owl.
Answer:
Survive
Explanation:
explain how the geologist knows that the flow is older then the intrusion
Why is it necessary for the cell to grow and duplicate its DNA before the start of meiosis?
Answer:
DNA replicates before a cell divides to give a complete set of genetic instructions to each daughter cell.
Explanation:
When a force is applied to a liquid, the force moves
throughout the liquid. *
unevenly
equally
decreasingly
increasingly
In what cell phase(s) does chromosome production (replication) and formation (condensing) occur?
Answer:
The S phase and prophase
Explanation:
Replication: it occurs in the S phase of the cecular cycle and the condensation of the chromosomes, the phase is M.
Which of the following is found in plant cells and NOT in animal cells?
Cell membrane
Cell Wall
Cytoplasm
Mitochondria
HELP!!
the answer is calculated to "Cell Wall"
Explanation:
I'm pretty sure that it's cell wall!
help ASAP! Please! Ill mark brainliest
Answer:
I think this is right
Explanation:
ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide
ocean acidification evidence - growing difficulty in absorbing carbon dioxide,
large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells
Answer:
I think this is right
Explanation:
ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide
ocean acidification evidence - growing difficulty in absorbing carbon dioxide,
large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells
Explanation:
b
In what cell phase(s) does chromosome production (replication) and formation (condensing) occur?
Which of these is an OPINION about deforestation (not a fact)? *
A. It can cause animals to lose their habitat.
B. it happens because people use wood and lumber.
C. Deforestation destroys important sources of oxygen.
D. It's a serious crisis that our government should try to stop.
PLEASE ANSWRR
Answer:
D
Explanation:
Answer:
D
Explanation:
Pretty obvious lol
2. In order to grow, animals with an exoskeleton must
a. Shed their skin
b. shed their shells
C. continue cell reproduction
d. find larger shells to inhabit.
a.shed their skin..
Explanation:
Exoskeleton
A true exoskeleton, like that found in arthropods, must be shed (moulted) when it is outgrown. ... The new exoskeleton is still capable of growing to some degree, however. Animals of the order arthropoda, like lizards, amphibians, and many other animals that shed their skin, are indeterminate growers
What are two different ways cells communicate and explain how this form of communication is effective?
Answer:
There are many different ways that cells can connect to each other. The three main ways for cells to connect with each other are: gap junctions, tight junctions, and desmosomes.
Explanation:
Cell Signaling is an important facet of biological life. It allows cells to perceive and respond to the extracellular environment allowing development, growth, immunity, etc. Additionally, errors in cell signaling may result in cancer growth, diabetes.
I'm asking this out of personal curiosity, not for school. but it's still for educational purposes kinda, so I hope it's okay.
If a flower is wilted, but not totally dead and withered yet, is the flower dead and it's dead flower body is in the process of decomposing, or is the flower like in the flower stage of being an old person, it lived and now it's old, but not dead yet?
Here's an example of the flower stage I mean. ^-^
Using the graph above, which answer choice correctly explains why there is a decrease in the rate of photosynthesis between the wavelengths of 500 to 600 nanometers (nm)?
A
Chlorophyll a absorbs wavelengths of light between 500 to 600 nm.
B
Chlorophyll a begins to disintegrate at low wavelengths of light.
C
Chlorophyll a reflects wavelengths of light between 500 to 600 nm.
D
Chlorophyll a begins to disintegrate at high wavelengths of light.
Answer:
A
Chlorophyll a absorbs wavelengths of light between 500 to 600 nm.
“The rest is lost largely through metabolic processes as heat.”
How can I word that sentence differently?
pls help
Answer:
The rest is lost generally through metabolic cycles as warmth.
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