Answer:
A. If there is nothing to interfere with light waves, they should travel in a straight line.
Explanation:
A light wave is a transverse wave, and do not require material medium for its propagation. It travels in straight lines in all directions from the source.
Light waves travel in straight paths (a principle referred to as the rectilinear propagation of light) known as rays, of which the combination of two or more rays gives a beam of light. When there is an obstruction on or interference with the path of light, it stops traveling in a straight line due to either absorption, refraction or diffraction.
When light from a source is forced to travel in one direction only, it is said to be polarized.
A mouse’s skin cell contains 11 chromosomes. How many chromosomes would be present in each of the mouse’s bone cells?
Answer:
11 chromosomes
Explanation:
Scientists wondered how volcanoes could be located so far from tectonic plate boundaries until one proposed the idea of 1___________, where the magma is much hotter than surrounding magma. These 2________and do not move with tectonic plates. They are responsible for the creation of 3____________island chains.
HELP!!!
Answer:
1. Hotspots
2. Fixed
3. Volcanic
Explanation:
I think this is right
Which of the following farming activities is MOST helpful to the environment?
A) rotating crops to reduce soil loss
B) clearing land to grow more crops
C) damming a river to provide water for crops ,
D) spraying crops with pesticides
Answer:
A) rotating crops to reduce soil loss
HELP! I don't know the answer!!
Answer:
The first one I think yay
help asap!!!!!!! pls and thank u also i’ll mark brainliest
Answer:
9.5 times
saturn is exactly larger than the earth
If an organism has 20 chromosomes, how many did they inherit from each
parent? *
O 5
O 10
20
О
40
Why do we calculate calories per gram instead of just calories?
Because an amount of the said substance emits a specific amount of heat.
In food usually calories are measured per 100 grams.
For biomolecules calories are measured per 1g (e.g. 1g glucose=4.1kcal)
Suppose you created a set of Instruments using water and drinking glasses. You need a note with a very low pitch to complete a certain song-what should you do? Pour out some of the water in the glass with the most water. Add more water to the glass with the most water. Pour out some of the water in the glass with the least water. Add more water to the glass with the least water.
Answer:
Add more water to the glass with the most water.
Explanation:
The glasses with more water have lower pitches and the glasses with less water have higher pitches. To create a lower pitch you need to add more water to the glass with the most water. If there is no room to add water, you need a larger glass!
Which statements are correct concerning human DNA? Select all that apply.
1. Each strand contains chromosomes from one parent.
2. It contains 23 chromosomes
3. It contains 46 chromosomes
4. Each chromosome contains 23 genes.
Answer:
answer would be B,C
If a person in the northern hemisphere observes a full moon, what moon phase would a person in the southern hemisphere observe on the same night? Be detailed in your explanation.
(SCIENCE)
Answer:
nooo
Explanation:
because the earth rotates changing the hemispheres
An increasing waxing moon's phase is seen from the Northern Hemisphere as it moves from right to left. Meanwhile, a waxing moon increases its phase from left to right as seen from the Southern Hemisphere.
What is Hemisphere?Hemisphere is defined as the Earth is evenly divided into two half by any circle that is drawn around it. The atmosphere is one of the fundamental elements of Earth's interrelated physical systems. The layers of gases that envelop a planet or other celestial body are its atmosphere. About 78% of the gases in the Earth's atmosphere are nitrogen, 21% are oxygen, and 1% are other gases.
In comparison to the northern hemisphere, the Moon does appear to be "upside down" in the southern hemisphere. It's only an issue of orientation here. Imagine that the equator and the Moon's orbital plane are the same.
Thus, an increasing waxing moon's phase is seen from the Northern Hemisphere as it moves from right to left. Meanwhile, a waxing moon increases its phase from left to right as seen from the Southern Hemisphere.
To learn more about Hemisphere, refer to the link below:
https://brainly.com/question/1362506
#SPJ6
Please help me!
Please answer correctly
Urgent !!!
Answer:
A= ovaries
B=uterus
C=endometrium
D= cervix
E=vagina
Answer:i:a ii:b iii:c iv:a
Explanation:this is pretty much what d id hope it helps
(word bank)
acid precipitation results when___and____ compounds react with water in the atomsphere
Answer:
Sulfur; nitrogen.
Explanation:
Acid precipitation results when sulfur and nitrogen compounds react with water in the atmosphere.
This acid precipitation is also known as acid rain and it is typically caused by the chemical reaction between sulfur oxide and nitrogen oxide which are released into the air as a result of burning fossil fuels, with water and other chemical elements present in the atmosphere.
Generally, acid precipitation (acid rain) usually have a pH of about 5.1 or below and as such, it is very acidic nature i.e possessing a large amount of hydrogen ions.
Hence, acid precipitation (acid rain) when washed to the earth has negative or harmful effects on various living and non-living organisms such as animals, plants, cars, buildings etc.
What primary method does the cell employ to ensure gene expression only occurs when necessary?
Limited amounts of specific DNA
Phosphorylation cascade with multiple steps
Receptors that only fit specific hormones
Unique transcription factors made of carbohydrates
Answer:
Unique transcription factors made of carbohydrates
Explanation:
Gene expression refers to the way by which the genes which contain hereditary materials in the cells are converted to certain proteins. Gene expression is regulated to avoid the wastage of useful energy. Transcription allows the copying of genetic information from the DNA to the RNA.
Transcription factors can activate or deactivate a gene thus hindering its expression. Unique transcription factors help to regulate gene expression.
Answer: receptors that only fit specific hormones
Describe the pathway of C4 plants.
17. Which organelles do all EUKARYOTIC CELLS have in common? (Select
ALL that apply.) *
nucleus
cytoplasm
cell membrane
Answer:
all of them
Explanation:
they all have them lol
PLEASE HELP ME 10 POINTS!DNA negatively charged
if anyone could give me the answers to these two please help
Answer:
the first one is increase and the second one is cell differentation
Explanation:
what are some negatives and some positives of coastal development?
Answer: Positive: Coastal areas help prevent erosion; filter pollutants; and provide food, shelter, breeding areas, and nursery grounds for a wide variety of organisms.
Negative: Added to this are impacts such as increased erosion due to coastal development, increased pollution, and increased boat traffic - all of which lead to further habitat loss and put increased pressure on marine species. ... Other coastal developments can also harm sensitive marine habitats and species.
Explanation:
sweat acts as a cooling agent on the body because of water high heat of vaporization or high specific heat capacity?
Explanation:
Large amounts of heat are needed to evaporate water, because H-bonds need to be broken. Sweating is an example of using water as d coolant. As the sweat evaporates it pulls heat away from the body. Application 'Water's thermal properties, its high specific heat, means that it can cool us.
1. Is water a solution? Justify your answer.
Answer:
Believe it or not, water is the answer! Water slowly dissolves rocks and other things. Especially certain types of rocks such as limestone. When rocks or other substances dissolve in water, they form a solution
Explanation:
Why would a certain trait have a
lower fitness than another causing
that trait to die off in a certain
population?
A. The trait has been around too long to be useful.
B. The trait does not benefit or hinders the
organism.
C. The trait does not wish to be passed on.
Answer: B
Explanation: Traits usually die off when they are unneeded by the organism, or if the trait causes harm to the organism's survival. Through natural selection, over time, the organisms with the best combination of traits for its survival will become the dominating species, and those with weaker traits may not survive long enough to pass off their traits to future offspring.
4. When water moves from liquid form in a lake to vapor
form in the air, it:
Answer:
Turns into a gas? Not much context to work off of. I don't know what is exactly being asked.
Explanation:
How are people connected to the circle of life?
What agent of deposition is this? Gravity,wind, waves, running water or glaciers.
Answer:
that's water since u can see the cracks in the rock that was formed when frozen running water thawed, which then break the rock.
Identify the type of mirror based on how the image is formed: A virtual
image appears to form behind the mirror. The image appears upright and
the same size as the object but left to right reversed.
*
concave mirror
convex mirror
plane mirror
Things like your eye color and height are not traits you can control in fact you inherit traits like these from your parents these traits are passed on because they are controlled by
Answer:
genetics i think
Explanation:
What is the definition for Allele?
Explanation:
One of a number of alternative forms of the same gene occupying a given position, or locus, on a chromosome is allele.
Explanation:
one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome
What is the complementary DNA strand for the DNA sequence TAC CCG ATA
CCT GTT CTA ATC?*
Answer:
. TRANSCRIPCIÓN: Cuando en la secuencia de ADN aparece una C, las ... de ADN, el ARN que se sintetice será una molécula complementaria ... (proteínas), uniéndose a una región cercana al sitio de inicio: TAC. ... partir de la cual debes completar la hebra complementaria, el ARNm, ...
Explanation:
what is difference between MYOCARDIAL INFRACTION and ANGINA PECTORIS ?
Explanation:
myocardial infraction is also known as heart attack and it is the blockage of blood flow to the heart muscles
while
angina pectoris is also known as ischemic chest pain and it is a type of chest pain caused by reduced blood flow into the heart
A basic understanding of which field of science, and its related technology, is essential for the both Kepler spacecraft and for Leeuwenhoek's discoveries of microorganisms and cells? A) botany B) zoology C) optics D) biology
Answer:
the anser is optics
Explanation:
i just did the test