6.5cm^3
Explanation:
since density =mass/volume,
volume=m/d
v=117/18
v=6.5
In regard to actin(the thin filaments) and myosin (the thick filaments), how do
muscles contract?
The globular heads of myosin tie actin, framing cross-spans between the good and bad fibers. This development slides the actin fibers from the two sides of the sarcomere toward the M line, shortening the sarcomere and bringing about muscle withdrawal.
What novel characteristics are shared by gymnosperms and angiosperms but not by mosses and ferns?
Explanation:
Mosses go through sporophyte and gametophyte stages in their life cycle. ... However, mosses are nonvascular while ferns are vascular. Gymnosperms and angiosperms are both vascular, seed-bearing plants. However, gymnosperms release their seeds in cones (like pinecones) while angiosperms release their seeds through flowers.
I need help plssss :)
Explanation:
2.)Matthaius Scheilden
3.)Theodore Schwann
The answer is below
Were you paying attention in class?
______ is the evaporation of water from plants, especially leaves. It is a type of translocation and part of the water cycle. The amount of water lost by a plant depends on its size, the light intensity, temperature, humidity, wind speed, and soil water supply.
Answer:
transpiration
Explanation:
i am sorry if it is right
Which action is most likely to stop succession and make an ecosystem less
stable?
O A. Using fewer pesticides in gardens
B. Using less fertilizer in gardens
C. Planting a variety of native species in gardens
D. Planting nonnative species in gardens
The answer is D. Because planting nonnative species is bad for the area because the plants that normally grow there have to compete with that new species then.
Answer:
D. Planting nonnative species in gardens.
Explanation:
Planting nonnative species in gardens are bad for your garden. The nonnatives can steal most to all of your native plants food and they can attack your native plants and kill them.
The movement of a fluid, caused by differences in temperature, that transfers heat from one part of the fluid to another
Convection
Conduction
Convection Current
Radiation
Answer:
Convection Current is the answer.
Explanation:
A peony plant with straight stamens and red petals was crossed with another plant having straight stamens and streaky petals. The seeds were collected and germinated and the following offspring were obtained 62 straight stamens with red petals 59 straight stamens, streaky petals 18 incurved stamens, red petals 22 incurved stamens, streaky petals a) Which alleles in each pair are dominant
Answer:
Explanation:
From the given information.
Let the Straight stamens be S;
The incurved stamens be s;
The red petals be R; and
The streaky petals be r
The genotype of the parental plants are Straight stamens, red petals (SsRr) and Straight stamens, streaky petals)
So if SsRr and Ssrr crossed together, Then we have the following:
If SsRr self crossed, we have the following traits = SR Sr sR sr; &
Ssrr = Sr Sr sr sr
Then, the dihybrid cross is:
SR Sr sR sr
Sr SSRr SSrr SsRr Ssrr
Sr SSRr SSrr SsRr Ssrr
sr SsRr Ssrr ssRr ssrr
sr SsRr Ssrr ssRr ssrr
P(Straight stamens, red petals) = 8/16
P(Straight stamens, streaky petals) = 6/16
P(Incurved stamens, red petals ) = 2/16
P(Incurved stamens, streaky stamens) = 2/16
Fiona wants to use the scientific method to answer the question "Do oxygen levels in the air of photosynthesis?" She reads about photosynthesis in her biology book and is ready to carry the next step. should she do next? O perform an experiment design a procedure make observations a hypothesis
Answer: hypothesis, prediction, design experiment, carry out experiment, etc
Explanation:If the question is supposed to be, is there a connection between atmospheric oxygen level and photosynthesis, then the next step would be to frame the hypothesis, which could be, for example,
“photosynthesis requires oxygen”, and a prediction such as,,
in a closed system, photosynthesis will reduce the oxygen level, or even photosynthesis does not proceed without oxygen.
and a format to test the hypothesis (design an experiment)
perform the experiment
collect data
analyse data
(of course, in this case, the data will support the null hypothesis).
Answer:
The correct answer is D!:)
Explanation:
Hope this helps!:)
List two names of cell inclusions?
Answer:
Explanation:
Examples of cell inclusions are glycogen, lipids, and pigments such as melanin, lip_ofuscin, and hemosiderin.
Answer:
glycogen, lipids
Explanation:
The metabolically inactive non-living subtances precent in cytoplasm are called as cell inclusions.
Which force produces a change in motion
Answer:
Unbalanced force
Explanation:
This force usually causes a change in motion, an example of this is when two forces act in the same direction of an object, the net forces equals the sum of two forces.
Describe: Fossil fuels are used in many ways. Using the Gizmo, describe the main use for each fuel.
Coal:
Petroleum:
Natural gas:
In each case, what is the end product of burning the fossil fuel, and where does it go?
Answer:
Coal:
Coal is primarily used as fuel to generate electric power
Petroleum:
heating and electricity generation, asphalt and road oil, and feedstocks for making the chemicals, plastics, and synthetic materials
Natural gas:
heating, cooking, and electricity generation.
it all end up in the atmosphere
Explanation:
The coal is burned and the heat given off is used to convert water into steam, which drives a turbine.
petroleum was formed from the remains of ancient marine organisms, such as plants, algae, and bacteria.
Like oil, natural gas is a product of decomposed organic matter, typically from ancient marine microorganisms, deposited over the past 550 million years. This organic material mixed with mud, silt, and sand on the sea floor, gradually becoming buried over time.
Coal and natural gas are burned in power plants to boil water. Steam from boiling water converts turbines into electricity. Carbon dioxide from burning fuel is released into the atmosphere.
This is about description of fossil fuels which are simply fuels that are formed from natural processes.
The uses and end products of fossil fuels are talked about in the explanations below;
1) (I) The primary use of the fossil fuel named coal is to generate electricity.ii) When coal is burnt, it produces a very high heat. This heat is so high that it converts water into high-pressure steam. What drives a turbine is a high pressure steam and this drive makes the turbine to produce electricity.
2) I) Petroleum products are used to set vehicles in motion, for asphalt on roads, production of electricity and heating of buildings.II) when petroleum is burnt to create energy, it produces high amount of carbon dioxide and other toxic gases into the atmosphere that can cause greenhouse effect.
3) I) Natural gas is used primarily as a source of energy for cooking, generating heat and for providing electricity.II) When it undergoes combustion is produces large amount of carbon dioxide and nitrogen oxides into the atmosphere.
Read more at; https://brainly.com/question/20014866
What does an increased pulse rate indicate about the heart rate
Answer:
A high heart rate can also mean the heart muscle is weakened by a virus or some other problem that forces it to beat more often to pump enough blood to the rest of the body. Usually, though, a high heart beat is not due to heart disease, because a wide variety of noncardiac factors can speed the heart rate.
What is reduced during glycolysis?
Answer:
There is one redox reaction during glycolysis. The oxidation of glucose begins during glycolysis. NAD+ accepts the electrons during the oxidation, and as a result it gets reduced. A total of 2 NADH are produced.
Explanation:
Answer:
During glycolysis, NAD is reduced
Cross the following blood types OO and AB.
What percentage would have O Blood, B Blood, A
Blood and AB Blood?
Answer:
Explanation:
Believe it or not, in this case having a blood type different from either parent is by far the most common result. In most cases, an O parent and an AB parent will have only A or B kids.
What could happen if an organism from the food web disappeared?
Answer:
They would starve and die unless they could move to another habitat. All the other animals in the food web would die too, because their food supplies would have gone. The populations of the consumers would fall as the population of the producer fell.
Explanation:
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They would starve and die unless they could move to another habitat. All the other animals in the food web would die too, because their food supplies would have gone. The populations of the consumers would fall as the population of the producer fell.
In humans, hemophilia is sex linked. If a woman is a carrier for the trait, what is the chance that her daughters will also be carriers? (Assume their father is normal.)
What factors affect the likelihood a species will migrate from the mainland to an island?
Answer:
The factors that might affect the likelihood a species will migrate from the mainland to an island are the distance to the mainland and the island´s size.
Explanation:
Ecologists MacArthur and Wilson took the term island biogeography theory to refer to the predictions about the number of species that could inhabit an island.
Island biogeography theory establishes that the two factors that affect species richness in natural communities on an island are the distance to the mainland and the island´s size.
At the same time, these factors affect immigration and extinction rates. According to the theory, islands that are closer to the continent have higher possibilities of receiving immigrants than those located farther from the mainland. This is the effect of distance.
The effect of size is reflected in the relation between island size and species diversity. In smaller islands, the probability of extinction is higher than in bigger islands. Bigger islands can have more species than smaller ones.
In the case of two islands of the same size and different distance to the mainland, both of them will have the same extinction rate, but the one closer to the continent will have a higher immigration rate, and so, a higher amount of species. The S value will be higher on the island closer to the continent.
Cassidy conducts a scientific investigation about
the types of birds in her community. She goes to
a park each day at 5:00 P.M. for seven days to
take notes on the birds'she observes. Cassidy
writes up her notes. Which verification process
does this scenario represent?
Answer:
The correct answer is - repetition.
Explanation:
Repetition is one of the verification process used in a scientific investigation or experiments to verify or investigate one's own investigation accuracy. In such verification, the researcher repeats its process to check the accuracy and used to check observations are correct.
In the given question Cassidy using repetition by repeating her observation for seven days at the same time 5 P.M. in the park.
What does light years measure
A light-year is how astronomers measure distance in space, hope this helps ^^
Answer:
Light year measures distance in space
Explanation:
it is mostly used to estimate very far distances and so it might take us about 24 million light years to travel to another galaxy and so on
A mother and father are curious about the possibility of having children of certain blood types. After some testing, the doctor tells them there is no chance that either of them will ever have a child with type O blood, no matter their partner. He does assure them that all of their children will have the same blood type. On the other hand, none of the children will have the same blood type as either the mother or the father. What blood type will the children be?
The blood type that the children won't have O blood type because the doctor says so and the children will not have the same blood type. This means that the children's blood type will likely be type A or Type B.
2. Which of the following graphs represents a relation that is not a function?
A
Answer:
D
Explanation:
I just did this and it was D
Please help me figure this out I don't understand this.
Answer: The big blue ball is the NUCLEUS, The things with The Rib looking things, Are the MITOCHONDRIA, The green circles are called the APICOPLAST, The outside is called the RBC, You might have to search the rest up because i don't know the rest!
Explanation:
What adaptive advantage would a plant have if it contained several pigments instead of just one or two?
Answer:Multiple Pigments Allow The Plant To Have Both Photosynthesis And Cellular Respiration To Maximize The Amount Of Energy They Capture From The Sun. B. Multiple Pigments Absorb Different Wavelengths Of Light, Allowing The Plant To Capture The Maximum ...
Explanation: Do you need more???
Pros and cons for growing and selling GM (Genetically modified) food.
NEED 5 PROS AND 5 CONS PLEASE
Answer:
i did this so she/he could get brainlest :D
Explanation:
Im a nice person -v-
Cytosine makes up 30% of the nucleotides in a sample of DNA from an organism. Approximately, what percentage of the nucleotides in this sample will be thymine?
Cytosine (C)
30%
Guanine (G)
Thymine (1)
?
Adenine (A)
Answer:
c
Explanation:
Which air mass would produce cold, dry weather in the winter?
Answer:
The correct answer is - Continental polar air mass. The continental polar air masses are very big air masses that are very cold, and dry
Answer:
Continental Polar Air Mass
Explanation:
The continental polar air masses are vey big air masses that are very cold, and dry.
How does dredging impact fish living in an estuary?
Answer:
Dredging impacts marine organisms negatively through entrainment, habitat degradation, noise, remobilization of contaminants, sedimentation, and increases in suspended sediment concentrations
The graph shows the effect of pH on the rate of reaction to three different enzymes. What does the graph show?
Answer:
Regarding the effect of pH on the reaction rate of three different enzymes, what the graph shows is that each enzyme works better at different pH (option A).
Explanation:
Enzymes are specialized protein molecules whose function is to contribute to faster reactions with lower activation energy. To fulfill this function, enzymes must be in an optimal range of temperature and pH.
The graph shows three enzymes, one in an acidic medium, one in a neutral medium and one in a basic medium. The reaction rate of each enzyme is similar, indicating that each is working at an optimum pH. The best interpretation that can be drawn from the graph is that each enzyme works best at a different pH.
The other options are not correct because:
B. The variable "temperature" is not included in the graph.
C and D. Since the comparison of the reaction rate of a single enzyme at different pH is not being made, the graph is not useful to indicate whether an enzyme works better in acidic or basic conditions.
how does a birds digestive system work?ФΔФ
Answer:
Birds have a two part stomach, a glandular portion known as the proventriculus and a muscular portion known as the gizzard. Hydrochloric acid, mucus and a digestive enzyme, pepsin, are secreted by specialized cells in the proventriculus and starts the process of breaking down the structure of the food material.
which statement is correct about photosynthesis and cellular respiration?
Answer:
plant respiratory is the act of moving water from plant to the atmosphere