On the retina of the eye, the area having no sensory cells is called
A) Rod cells
B) Blind spot
C) Yellow spot
D) Cone cells
Answer:
b.
blind spot
that's the answer
write down 5 sentences about first aid
13. If an object travels 42 meters in 6 seconds, what is its average speed? А 6 m/s B 7 m/s C 48 m/s D 252 m/s
Answer:
B) 7 m\s
Explanation:
42 divided by 6 equals 7. Each second is 7 meters.
D. Explain the relationship between the pulse recorded in the finger and heart muscle contraction ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ E. Which components of the cardiac cycle (atrial systole and diastole, ventricular systole and diastole) are discernible in the pulse tracing? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Answer:
D. Heart contraction and pulse are connected with one another.
E. Atrial diastole and ventricle diastole.
Explanation:
Heart construction and pulse of an individual are connected as one can hear the pulse every time contraction of the heart is completed. Pulse can be understood by this that it represents the number of the contractions is completed by heart each time.
In the pulse tracing, there are two parts of the heart that are discernible which represents the contraction of the heart that are Atrial diastole and ventricle diastole.
The relationship between the pulse recorded in the finger and heart muscle contraction is that both are connected to each other. But, the analysis and processes are different from one another.
What is Muscle Contraction?
A process leading to shortening and/or development of tension in muscle tissues that means the thin filaments slide over the thick filaments and tension is generated between one another is called Muscle contraction.
The pulse recorded in the finger is a signal for flowing the blood throughout the body, while the process of heart muscle contraction signals for electrical conductivity. Both the functions are connected with each other and acquired by cardiac activities.
The components of the cardiac cycle that are discernible in the pulse tracing are Ventricular systole (contraction) and ventricular diastole (relaxation).
Therefore, both the pulse recorded in the finger and heart muscle contraction interconnected with one another and acquired by cardiac activity.
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What orbits, or revolves, around most planets?
Comets
Moons
Rings
Stars
Answer: Stars
Explanation: The sun is a star.
Answer:
moons orbit around planets.
Explanation:
each planet has a moon or multiple moons that orbit around the individual planets.
Differences in ocean salinity and temperature create...
...disturbances in the water cycle.
...different climates on land.
...masses of water that are different from each other.
...weather patterns with a lot of fresh water precipitation.
Answer:
Masses of water that are different from each other
Explanation:
salt water is denser than fresh water, so it makes sense that it would create masses of water that are different from each other, it won't affect the water cycle climate or weather cycle since the salt stays in salt water when it is evaporated, creating precipitation that is always fresh water.
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The color of fruit for plant "X" is determined by two alleles. When two plants with orange fruits are crossed the following phenotypic ratios are present in the offspring: 25% red fruit, 50% orange fruit, 25% yellow fruit. What are the genotypes of the parent orange-fruited plants? *
A. RR=Red RY=Yellow YY= Orange
B. RR= Red YR= Orange YY= Yellow
C. Rr=Red RR= Red rr=Yellow
D. OO= orange, Oo=Orange oo=Red
Answer: A
Explanation:
key:
yellow YY
Orange YR
Red RR
what are some facts of the Marine ecosystem!
Answer:
The Marine Ecosystem is the Largest Ecosystem on Earth
The Marine Ecosystem has the Greatest Biodiversity on Earth
Phytoplankton in the Oceans Provide 50% to 85% of the Oxygen on Earth
Explanation:
There's 3 facts lol
Heat is effective at killing , but not
Answer:
ghjk.
Explanation:
ghm,.
emm yeah so it can't killing right?
what do u mean by autecology???
Answer:
Autecology concerns the study of interactions between an individual, a population, or a species and its total environment. Environment refers to all the physical and biotic factors directly influencing a given organism or organismic unit as well as anything affected by it. Autecology has sometimes been defined as ‘species ecology’ and it has also been equated with physiological ecology. Many examples of how autecologies differ among various taxa are given. Indirect interactions, such as indirect mutualisms and tropic cascades, can greatly complicate autecologies; several examples are given.
Explanation:
Explain why each of these non-living components are important to life on Earth
Answer:
They are mainly important for plants.
Explanation:
Sunlight is good for plants.
Soil is good for plants.
Water is good for plants.
These three components help with photosynthesis.
Temperature
Atmosphere
Wind
All alternate the plant and human lives.
Water is the most essential for both human, plants, and animals.
4 points
16. Which of the following is NOT an example of economics as a result of
biodiversity? *
the Fishing Industry
the Stock Market
the Lumber Industry
Answer:
The stock market is not an example of economics as a result of biodiversity.
When studying organisms, do you think it
would be more helpful to compare them
genetically or physically? Why?
Answer:
physically because the living organisms are most likely to have the same molecular structure when comparing physically the organisms of different species and such can look vastly different.
Explanation:
The drug chloral hydrate prevents elongation of microtubules. During which stage of the cell cycle would chloral hydrate be most
harmful?
Multiple Choice
M phase
G1
G2
S phase
cytokinesis
Answer: G1 phase
Explanation:
Hope this helps!
A beetle moving away from a light source is an example of
0 Taxis
0 Imprinting
O Imitation
O Kinesis
What causes thunderstorms
Answer:
moisture, unstable air and lift
what ion can be combined with oxygen ion to form an ionic compound?
a.carbon ion
b.calcium ion
c.chlorine ion
d.fluorine ion
which of the following families have elements having 5 velence electrons
a.alkali metals
b.chalcogens
c.pnictogens
d.halogens
Calcium ion can be combined with oxygen ion to form an ionic compound.
What is Ionic compound?A compound that is created through ionic bonding is known as an ionic compound. One atom transfers its electrons to another in a process known as electron transfer to form an ionic connection. Think about two pups.
The pups each have a bone. The puppies stand in for atoms. The bone is a metaphor for an electron. Both of the puppies are impartial. One dog snatches the bone from the other since it is a thief. Now that the bone is his, the puppy thief.
In order to create a puppy pair with the thieving puppy, which has a negative charge, the puppy without a bone, which has lost an electron and is now positively charged, will follow it about. The ionic compound is the puppy pair.
Therefore, Calcium ion can be combined with oxygen ion to form an ionic compound.
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Question 3 (3 points)
Which description best explains the shape of the initial disturbance when you drop the penny between the two glasses.
Question 3 options:
Once the penny lands in the water, the waves expand outward on either side of the glasses.
Once the penny lands in the water, the glasses stop any waves from moving outward
Answer:
B: Once the penny lands in the water, the waves expand outward on either side of the glasses.
Explanation:
I just finished the test
Scientists use a ______ to detect and study earthquake waves. Two types of Earthquake waves that travel through Earth’s interior are ______, which are compression waves and travel fastest, and ______ which move back and forth and cannot travel through liquid.
Answer:semestic waves and surface waves
Explanation:
Answer:
Seismograph, Seismic waves, Surface waves
If you wanted to study the movement patterns of deer at different times of year using radio transmitters, you would need to use _____research techniques.
a. GIS
b. fields
c. randomized
d. laboratory
e. genetics
Answer:
a. GIS
Explanation:
GIS research technique is used in order to study the movement patterns of deer at different times because the geographic information system (GIS) is a framework for collecting, managing, and analyzing the data in order to know about the geography of that area. GIS also allows us to find out the events that is happening inside a specific region or nearby to a specific region.
A scientist is observing an insect in the lab. The insect moves in zig-zag motions back and forth in the petri dish where it is located. The scientist
shines a large, bright light onto the insect. The insect does not change its behavior. This leads the scientist to believe that the insect's movement is
O positive taxis
O negative taxis.
O kinesis
O tropism
Answer:
negative taxis(photo)
Explanation:
because it doesn't respond to light
Some cells live for years, while others live for only a few days. Why do some cells get replaced faster than others?
Answer:
Some cells don't divide and last you a life time such as many of those in the central nervous system other cells such as stems called cell populations have their telemeres repeatedly extended by the enzyme telomerase other cells are never replaced and live as long as we do .
I hope this answer might help u
explain how DNA mollecules carries the information?
Answer:
Genetic information is carried in the linear sequence of nucleotides in DNA.
Explanation:
Genetic information is carried in the linear sequence of nucleotides in DNA. Each molecule of DNA is a double helix formed from two complementary strands of nucleotides held together by hydrogen bonds between G-C and A-T base pairs. In eucaryotes, DNA is contained in the cell nucleus.
Why does the Pacific Ring of Fire occur where it does?
The body functions best with a particular set of conditions: an ideal body temperature, blood pressure, blood sugar level, and many other ideal conditions. Which of the following is NOT true regarding homeostasis?
Answer:
what are the answer chocices
Explanation:
Explanation:
where is the answer choice??
How does cellular respiration directly benefit animals?
2.
has no nutritional value.
a. Bread
b. Alcohol
c. Meat
d. Milk
Answer:
alcohol
Explanation:
it has only bad effects on the person who drinks it
You want to identify dominant /recessive relationship for skin color for a new frog species that you found in the rain forest. Assume that one autosomal gene controls skin color in this species. All of the frogs that you found for that spe- cies are bright blue or yellow. A bright blue female and bright blue male frog mate and produce all bright blue progeny. A yellow female and yellow male frog mate and produce a mix of bright blue and yellow progeny. Identify each trait (bright blue skin color and yellow skin color) as dominant or recessive. Explain your choices.
Required:
Identify the genotype for each parent in the two crosses.
Answer:
bright blue trait = recessive
yellow trait = dominant
Explanation:
let the letter B represent the gene for skin colour.
This means that the dominant gene is 'B' while the recessive gene is 'b'
A dominant gene is one that is exhibited phenotypically in the presence of both gene variants (heter0zygous state - Bb) while a recessive gene is only expressed phenotypically when it is in a h0m0zygous state (bb)
In order to find out the genotype of the parents, let us consider each cross one after the other.
1. A bright blue female and a bright blue male produce all blue progeny.
2. A yellow female and a yellow male produce a mix of both bright blue and yellow progeny
From statement 2, it can be deduced that the trait for yellow colour is dominant because a cross of the parents exhibiting this trait produces bright blue offsprings too, meaning that the genetic composition of the parents contains the gene that codes for yellow colour. Since these parents show a yellow colour in a heterozygous state, then the trait for yellow colour is dominant.
Therefore, the genotypes of the parents in each case include:
1. A bright blue female and a bright blue male produce all blue progeny. (bb × bb)
2. A yellow female and a yellow male produce a mix of both bright blue and yellow progeny (Bb × Bb)
How does an increase in atmospheric carbon dioxide effect the oceans?
Choose all that apply
-It causes them to dry-up and shrink in size.
-It causes sea levels to rise.
-It causes them to be more acidic.
-it causes them to be warmer.
Explanation:
Definitely global warming is correct because global warming is a slow process, a few degrees in hundreds of years. Moreover, there are multiple sources (causes) responsible for Earth warming. Though the Earth warms up very slowly (incomparably slower than heating a pot of water on the stove, where the heating source is only one), it occurs much faster than thousands of years ago.
An increase in atmospheric carbon dioxide is that the level of carbon dioxide is getting increased and the level of global warming is getting increased.
What is the pollution ?The pollution is the unwanted wastes that are coming out in the nature and the environment such that the level of increasing bad effects of air are increased.
It causes them to dry-up and shrink in size. It is because of the increased temperature that increases most importantly this condition of drying up and all. The sea level is increased when there is increase in water level due to the maximum water melting from glaciers that cause the water to increase in oceans.
Global warming is the intact reason that sounds so relevant to the situation where the condition is like that the increasing water will automatically level up other concerns as well that is because of the green house gases.
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Which taxon does the group Animalia represent?
A. Phylum
B. Species
C. Genus
D. Kingdom
Answer:
D kingdom
Explanation:
I just know hope this helped :) <3
Answer:
kingdom
Explanation:
I just did the test