Which statement about the nervous system is true?
Helpp please !
Which gland or glands support the fight-or-flight reaction?
O A. Adrenal glands
O B. Thyroid gland
O C. Pineal gland
O D. Thymus gland
Answer:
A. Adrenal glands
Explanation:
The adrenal glands are endocrine glands that can produce a variety of hormones.
Answer:
I think A. Adrenal glands.
Explanation:
These glands produce certain hormones which I believe are responsible for the reaction.
What is the most common molecule in living things?
A. H2
B. CO
C. CO2
D. H20
Answer:
H20
Explanation:
because all living things need water(H20) in other to survive
During the light reactions of photosynthesis, why is a molecule of water split?
to provide energy for the electron transport chain
a.) to provide energy for the electron transport chain
b.) to produce electrons that replace the two electrons that were lost from the chlorophyll molecule
c.) to assist in the process that produces ATP
d.) to form NADPH
Answer:
B
Explanation:
Electrons from photosystem II go through the ECT in the chloroplast, so water is split to replace those electrons.
how does natural selection apply to an individual?
Answer:
read below
Explanation:
Individuals with adaptive traits, traits that give them some advantage are more likely to survive and reproduce. These individuals then pass the adaptive traits on to their offspring. Through this process of natural selection, traits are transmitted through generations and generations.
Besides riding a bike and using organic compost in your garden, describe another way you can help conserve our natural resources.
Answer:
5 minuite showers
Explanation:
What property of water allows it to move up through a plant?
A. Covalent bonding
B. Dehydration
C. Hydrogen bonding
O D. Hydrolysis
Answer:
C. Hydrogen bonding
Explanation:
It occurs when Hydrogen atome unequally share electrons
Investigate further Create offspring with a few different levels of Food supply. How does
food supply affect the body type of offspring?
Answer: A market supply schedule is a chart that lists the quantity supplied for a good or service that suppliers throughout the whole economy are willing and able to supply at all possible prices, so in this case:
Explanation:
5. If there is a large number of prey rodents, the number of owls will increase due to a healthy
food source. More owls feeding on the rodents will cause their population to decrease, which in
turn will eventually cause the owls number to decrease. Would you expect to find this pattern in other ecosystems between predators and prey? Explain.
Answer:
Yes
Explanation:
One would expect to find the same pattern in any other ecosystems between predator and prey unless there is a way the prey's population is being replenished.
When predators start hunting down preys, the population of preys start decreasing and this will in turn means less food for the predators. If the trend continues, competition for food become fierce among the predators and this will make their population to start decreasing as the competitively strong ones take over the little food that remains and the competitively weak ones are gradually left to starve to death.
I NEED THIS QUICKLY 11 POINTS AND A BRIANLIEST IF YOU CORRECT
1. HYPOTHESIZE: Some human activities change environments in ways that harm both people and other
organisms. Describe one example of this kind of activity.
Answer:
Deforestation is one major human activity that harms both people and organisms. Cutting down trees lowers Earths ability to create fresh air, which leads to more toxic and polluted areas that can cause problems with breathing and even lead to lung cancer. Deforestation can harm other organisms because many animals such as birds, squirrels, and owls, look to the trees for a habitat. However, as we destroy they can cause a decrease in population which leads to an even bigger problem in the food chain.
Which field of study would be most useful for a person who wants to help preserve a wetland?
What constitutes the majority of the debris found in the “garbage patch" located in the North Pacific Ocean?
Answer:
Old Fishing Gear
Explanation:
The patch, in fact, is made up mostly of abandoned fishing gear. According to the study, fishing nets alone make up 46 percent of the 79,000 tons of garbage.
The diagram shows the inside of a eukaryotic cell. An eukaryotic cell is shown. 2 bean-shaped structures with folding inside are labeled x. Which process occurs in the structures that are labeled X? lactic acid fermentation alcohol fermentation glycolysis Krebs cycle
Answer:
the answer is the last one. hope this helps.
Damage to which of the following structures is most likely to affect the oxygen production of a plant?
A. The electron transport chain
B. Photosystem II
C. The hydrogen ion pump
D. Photosystem 1
what did the results of the experiment show
Select the correct answer.
A cell phone manufacturing company wants to display the average sales of their new phone model for a particular month across six countries.
Which method of data representation would be ideal for this?
ОА.
Bar chart
OB.
Ple chart
OCHistogram
Reset
Next
Answer:
Bar Chart
Explanation:
Is shown to compare amounts, while pie charts are used for percentages
Answer:
The answer is "bar chart" i just did the test so i know this answer is right
Explanation:
What is a short term goal related to maintaining reproductive and sexual health?
Answer:
eating better and exercising for a month
When will there be an vacination for corona?
Answer:
No one knows yet
Explanation:
They haven't mentioned yet but they have started giving
Please don't take
Thanks.
Corona-virus is spreading around the world, but there are still no vaccines to protect the body against the disease it causes, C ovid-19.
Medical researchers are working hard to change that.
Many parasites cause more harm to
the host than just feeding alone
because...
A. many parasites transmit disease.
B. many parasites become 'part' of the host
organism.
C. many parasites return with swarms.
Does anyone know the answer
Thanks
Answer:
You inherited DNA from each parent
What percentage of the F2
generation had the genotype TT?
A 50%
B. 100%
C. 25%
Answer:
c
Explanation:
If microwave radiation in the universe were visible, it would be bright and
astonishingly uniform. How does this support the Big Bang theory?
Answer:
Well, background radiation is used to determine how the universe was made, in this case, The Big Bang, if microwaves were visible, astronomers would be able to determine the age. Microwaves would be between orange-red, it might get brighter.
Explanation:
Hope this helps.
The bright and astonishingly uniform color of microwave radiation would : make background radiation visible to astronomers studying the age of the universe ( using the Big bang theory )
The Big bang theory is a cosmological model that proposes that the new universe was formed from the expansion of a Larger body having a high level of density and temperature.
The background radiation is a microwave radiation that is studied by astronomers to determine the age of the universe, therefore if microwave radiation has a bright color it will help the astronomers determine the age of the universe easily and also proving that the formation of the universe was from the Big bang.
Hence we can conclude that The bright and astonishingly uniform color of microwave radiation would : make background radiation visible to astronomers studying the age of the universe ( Big bang theory )
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Select the correct answer from each drop-down menu.
The image shows the path of a ball that’s thrown.
At positions (A,B,C, or D) and (D,E,F, or G), kinetic energy is maximum. At position (B,C,D,or E), potential energy is maximum.
At position (A) and (G), kinetic energy is maximum. At Position (D), potential energy is maximum.
At point A and G kinetic energy will be maximum while Potential energy is maximum at point D.
Kinetic energy (KE) is initially provided to the ball while it is still in contact with the throwing hand. Once the ball leaves the hand there is no input of energy. As the ball rises the KE is transformed to gravitational potential energy (GPE). This GPE is effectively stored in the height of the ball.Now, when the ball falls back to the ground its potential energy is transformed into kinetic energy, which will continue increasing as it gains momentum, until it finally collides with a surface.Learn more:
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Mutations that neither benefit nor harm the organism have _________ effect on the organism's survival.
A. a positive
B. a negative
C. an aggressive
D. a neutral
Answer:
Its neutral!
Explanation:
During mitosis, chromatin condenses into chromosomes, spindle fibers form from one end of the cell to the other, and centrioles organize the spindle fibers. Which stage of mitosis happens next?
Answer:
Metaphase
Explanation:
Mitosis is the cell division that involves the production of daughter cells that are genetically identical to the parent cell. Mitosis is undergone by every living cell and it includes four main stages: Prophase Metaphase, Anaphase, and Telophase.
The description in this question showcases the Prophase stage, which is the first stage of mitosis. The Prophase stage involves the condensation of Chromatin threads into Chromosomes. The mitotic spindle, which contains the microtubules that will separate sister chromatids begins to form. The next phase involves the aligning of chromosomes at the cell's equator, which occurs in the METAPHASE stage.
Answer:
Metaphase
Explanation:
match the phylum with the animal.
Answer:
1 - D
2 - A
3 - C
4 - B
Explanation:
What conditions on Earth enable life to exist?
Answer:
- Earth's gaseous atmosphere (which consists of water vapor, 21% oxygen, 78% nitrogen, .9% argon) The water vapor helps regulate temperature and of course, oxygen is an essential aspect for us to breathe
- The availability of water
- Sunlight
- A constant seasonal cycle (caused by the tilt of the Earth's axis & a perfectly sized moon which maintains the tilt)
A population of rhinos was separated by a large river.
Since rhinos are lousy swimmers, they were unable to cross. Environmental conditions were very different on either side of the river, and over time these two groups of rhinos evolved such different characteristics that scientists classified them as two
different species. This is an example of:
A.sympatric speciation
B.homologous speciation.
C.analogous speciation
D.parapatric speciation
E.allopatric speciation
Answer:
B
Explanation:
Environmental conditions were very different on either side of the river, and over time these two groups of rhinos evolved such different characteristics that scientists classified them as two different species. This is an example of homologous speciation.
What is homologous speciation?
Organs or skeletal components of animals and organisms that are homologous suggest a connection to a common ancestor because of their similarity.
The appearance and purpose of these structures need not be identical. Other mammals with tails include rats, cats, and monkeys. Mammals have flexible vertebrae in their tails, which act as an extension of their torsos.
Although their primary purpose is to fend off insects, tails can also provide a sense of equilibrium for more reclusive species like cats.
Therefore, Environmental conditions were very different on either side of the river, and over time these two groups of rhinos evolved such different characteristics that scientists classified them as two different species. This is an example of homologous speciation.
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I pts
While testing the effectiveness of a new antibiotic, researchers use three groups with
the following treatments:
• Group 1--receives a placebo
• Group 2: receives antibiotic A
• Group 3: receives antibiotic B
Which of the groups would not be considered a control group?
o the group that received antibiotic A
o the group that received the placebo
o the group that received antibiotic B
O both groups receiving antibiotic A and B
Researchers use three groups when testing the efficacy of a new antibiotic, so both groups receiving antibiotic A and B, are not a control group, but the ones that received the placebo is a control, so the answer is in the last option.
What is the significance of the control group?The control group has various significant characteristics that allow researchers to compare the effectiveness of the experimental data with the standard and check the effectiveness, but the control group does not receive the experimental treatment. Here, the placebo-treated population is the control group, while the other two groups are experimental and can be taken as the control group.
Hence, researchers use three groups when testing the efficacy of a new antibiotic, so both groups receiving antibiotic A and B, are not a control group, but the ones that received the placebo is a control, so the answer is in the last option.
Learn more about the control group here.
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need help ASAP:( What is the relationship among evolutionary mechanisms and genetic diversity?
pls thank you>_<
Answer:Evolution and diversity result from the interactions between organisms and their environments and the consequences of these interactions over long periods of time. Organisms continually adapt to their environments, and the diversity of environments that exists promotes a diversity of organisms adapted to them.
Explanation:
