Which example is a way that intercellular Communication occurs
Answer:
A signal is sent from a nerve cell to a muscle cell
Explanation:
I just took this test and this was the correct answer.
Answer: A signal is sent from a nerve cell to a muscle cell
Explanation:
Drop a paper a piece of thermocol and a piece of plastic from a height of 10 to 15 feet not the time for each object to hit the ground why does paper take more time than thermocol and thermocol more than the plastic piece make the paper to fell down in such a way that it should hit the ground before all of them and how does it happen
Answer:
The paper takes more time to fall than the piece of thermocol because it experiences a greater air resistance than the thermocol.
The thermocol takes more time than the piece of plastic because it experiences a greater air resistance.
The piece of paper can be made to fall faster than all of them and hit the ground faster by crumpling it and then giving it an initial velocity by throwing it downwards.
Explanation:
Objects falling freely due to the force of gravity alone are accelerated downwards at a constant value 9.8 m/s². This acceleration due to gravity is constant for all objects on the earth's surface and is independent of the mass of the objects.Therefore, when objects are release from the same height and allowed to fall freely under gravity, they are accelerated downwards to the same extent and are expected to hit the ground at the same time. However,due to the resistance of the air through which the objects are falling, they may hit the ground at different times depending on the shape of the falling objects.
Objects which have a greater surface area or volume per unit mass will experience a greater air drag or resistance and therefore, will take a longer time than objects of similar mass with a smaller volume or surface area.
The paper has a greater surface area per unit mass than the piece of thermocol, therefore, it takes more time to fall than the piece of thermocol because it experiences a greater air resistance than the thermocol.
The thermocol has a greater surface area per unit mass than the piece of plastic, therefore, it takes more time than the piece of plastic because it experiences a greater air resistance.
The piece of paper can be made to fall faster than all of them and hit the ground faster by crumpling it, thereby reducing its surface area per unit mass it and then giving it an initial velocity by throwing it downwards.
Facial dimples and free earlobes are both considered dominant human traits. What are the expected phenotypes of the offspring of a female with dimples and free earlobes (DDFf) and a male with no dimples and attached earlobes (ddff)? Group of answer choices
Answer: 50% with dimples and free earlobes and 50% with dimples and attached earlobes
Explanation:
Since both the facial dimples and free earlobes are considered to be dominant human traits, this implies that the expected phenotypes of the offspring with regards to the scenario given in the question would be 50% with dimples and free earlobes and also there will be 50% with dimples and a attached earlobes.
50% with dimples and free earlobes and 50% with dimples and attached earlobes.
Dominant and recessive traits exist when a trait has two different forms at the gene level. The trait that first appears or is visibly expressed in the organism is called the dominant trait. The trait that is present at the gene level but is masked and does not show itself in the organism is called the recessive trait.Since both the facial dimples and free earlobes are considered to be dominant human traits, this implies that the expected phenotypes of the offspring with regards to the scenario given in the question would be 50% with dimples and free earlobes and also there will be 50% with dimples and an attached earlobes.
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brainly.com/question/20639307
How might the fennec fox's population suddenly Increase? How might this affect the ecosystem?
Answer:
If rabbits population (prey of fennec foxes) suddenly increase as well. The other prey of the fennec foxes would shrink in population because there would be more fennec foxes to eat them. This would at some point even out and the ecosystem would go back to normal.
HELPPP!!! ASAPPP!!!!
What is the importance of the amniotic egg?
Answer:
The amniotic egg was an evolutionary invention that allowed the first reptiles to colonize dry land more than 300 million years ago. Fishes and amphibians must lay their eggs in water and therefore cannot live far from water. But thanks to the amniotic egg, reptiles can lay their eggs nearly anywhere on dry land.
Hopes this helps :)
If RNA strand reads AUG CGU AAU UAU, what did its source DNA read?
Answer:
TAC GCA TTA ATA
and apparently my answer needs to be 20 charcters long
Question: How is it that traits can vary so much in the same family?
Answer: One component, called shared environment, includes all environmental influences that make children in a family similar to one another.
Explanation: Environmental variance not due to shared environment is called nonshared environment; this portion of environmental variance makes family members different from one another.
Alzheimer's disease has some lifestyle factors because
A. everyone can contract it in their lifetime
B. it can be influenced by nutritional choices
C. up until now there is no known cure for it
D. it can be contracted through germs
Answer:
C
Explanation:
8.All of the following are simple machines except one. Please select the choice that is NOT a simple machine. A.Wheel and axel B.Screw C.Dish Washer D.Bike
9. We use simple matchines in our daily life.If i use a knife to cut my sandwitch for lunch,_ _ _ _ _ . A. I've used less force and done less work.
B. I've used more force and done more work.
C.I've used less force and done the same amount of work.
D.A knife is not an example of a simple machine.
Answer: Dish Washer
Explanation:
WILL MARK BRAINLIST!!! only for correct answer
NEED CORRECT ANSWER ASAPPP
Answer:
D. 4
Explanation:
Reflection can be defined as a phenomenon which typically involves a change in the direction of a ray of light or waves as it falls on a smooth surface.
Simply stated, reflection occurs when a ray of light or wavefronts bounces off a smooth surface.
From the diagram provided above, the thin beam of light which illustrates reflection is the fourth because as it hit the surface, it bounced back to the medium from which it was originally propagated with.
Which statement about the inheritance of blood types in humans is most likely to be correct?
- Type O is dominant to both Type A and Type B
- Type B and Type O are co-dominant to Type A
- Type A and Type B are co-dominant to Type O
- Types A and O are co-dominant to Type B
Answer:
Type b and a my answer promise copy this now
Explanation:
Infer If the rock layers shown above hare
not been disturbed, what type of dating
method would help you determine which
layer is oldest? Explain.
Answer:
radiometric dating methods
Explanation:
The oldest rock layer will be at the very bottom, and as time goes on, more layers will form making the top layer the youngest layer and the bottom layer the oldest. This method can determine the amount of radioactive decay of certain elements which can help them make a geologic time scale.
Many cities contain green areas, such as the park shown in the image below.
How do such roadless areas make a city more sustainable?
Answer:
Its A.
Explanation:
I just took the quiz trust me :D
Answer:
They provide high-density urban areas with space for outdoor recreation.
Explanation:
I just took the quiz.
What is a Sedimentary Rock?
rock that forms when existing rock changes to a new rock because of heat and pressure
⊝
rock that forms by the process of compaction and cementation of sediments
⊝
rock that forms when melted rock (magma, lava) cools and hardens
Answer:
rock that forms when existing rock changes to a new rock because of heat and pressure
What are the different types of Adaptations? Give examples of each.
Give an example for natural selection occurring based on food sources
Answer:
Behavioural-made by an organism that helps it to survive/reproduce.
Physiological-a body process that helps an organism to survive/reproduce.
Structural -a feature of an organism's body that helps it to survive/reproduce
Explanation:
Which recent discovery led to a new understanding of how genetic mutations increase the risk of cancer? double helix structure of DNA BRCA1 and BRCA2 genes nucleic acid monomers formation of tumor suppressor proteins
Answer:
BRCA1 and BRCA2 genes
Explanation:
The BRCA1 and BRCA2 genes are tumor suppressor genes that encode breast cancer susceptibility proteins involved in repairing double-strand DNA breaks (DSBs) by the mechanism of homologous recombination. This mechanism uses the sister chromatid of the homologous chromosome as template for repairing DSBs. It has been shown that mutations in BRCA1 and BRCA2 genes alter the molecular mechanism of homologous recombination DNA repair, thereby mutations are not repaired appropriately and persist in the DNA of tumor cells.
(B.) BRCA1 and BRCA2 genes
Have a great day and hydrate!! <3
A fox population used to have white fur. In recent years, tan and light
brown colors started to appear in the population.
Which option would cause such a change?
Answer:
Natural Selection or Adaptation
Explanation:
Because they change their fur color so predators cant find them as good
1 point
This picture shows a cross-section of a blood vessel. The diameter of the
lumen in Figure 10 is 25.0 mm. What is the actual diameter of the lumen of
this blood vessel?
lumen
magnification X8
3.1 x 10-2m
3.1 x 10-3 m
O 2.0 x 10-2 m
2.0 x 10-3 m
Answer:
B. 3.12 x [tex]10^{-3}[/tex] m
Explanation:
From the given picture, it can be deduced that;
the diameter of the image of lumen = 25.0 mm
= 25.0 ÷ 1000
= 0.025 m
And,
magnification = [tex]\frac{diameter of the image of lumen}{actual diameter of lumen}[/tex]
But magnification = 8,and diameter of the image of lumen = 0.025 m.
So that;
8 = [tex]\frac{0.025}{actual diameter of lumen}[/tex]
⇒ actual diameter of lumen = [tex]\frac{0.025}{8}[/tex]
= 0.003125
Actual diameter of lumen of the blood vessel is 3.12 x [tex]10^{-3}[/tex] m.
2. True or false. Trees have to attract bark from other sources. *
O pol
True
False
two difference between drone bee and worker bee
Answer:
The worker bees are female, but they do not breed. The queen bee is female and creates all the babies for the hive. The drone bees are male and do not have a sting. Bees communicate with each other about food sources using dances.
Explanation:
Suppose scientists determine that a set of genes is significantly more prevalent in murderers than in the population at large. Would that mean that murderers are not at fault for what they do? Why or why not?
Answer:
No
Explanation:
That a gene is common to all murderers in the population does not mean that murderers are not at fault for their crimes.
Having a gene that correlates with murder just gives one a genetic tendency but the environment and personal choice still have to influence the decision to commit the crime. In other words, one might have the genetic tendency to commit murder but still has to be environmentally enabled and the ability to choose to either do it or otherwise. Nature, nurture, and personal choice would have to synergistically work together for the phenotypic expression of such a gene.
Iron rich deposits that formed about 2 billion years ago have red layers. Layers formed before then were not red. The red layers formed when oxygen made during photosynthesis reacted with iron molecules in the ocean. The oxidized iron formed layers of sedimentary rock
. Which BEST summarizes this phenomenon?
A. The lithosphere changed the atmosphere. B. The hydrosphere change the atmosphere.
C. The atmosphere change the biosphere.
D. The biosphere change the lithosphere
Answer:
D. The biosphere change the lithosphere
Explanation:
The red formed due to oxygen which is produced by plants in the process of photosynthesis. This oxygen then reacted with iron atom and formed oxidized iron layers of sedimentary rock. So here plants are responsible for the formation of these layers and we considered plants as part of biosphere so we can say that biosphere is responsible for the change of lithosphere.
Answer:
D. The biosphere change the lithosphere
Explanation:
What's a energy pyramid
Answer:
it's the way energy moves up through the trophic levels. the higher the level you are the less energy there is.
Explanation:
name a fish which possesses a poisonous sting.....
who one answer this question I'll give her or him answer as brainlist answer it's my promise
but u have to answer it in 20 seconds
Answer: Scorpionfish
Explanation:
The marine fish of the family Scorpaenidae are the most venomous fish in the world. Three main genera provoke the majority of envenomations in humans: Synanceja (stonefish) (Fig. 36-50), Pterois (lionfish) and Scorpaena (true scorpionfish) (Fig.
A researcher is studying the effects of caffeine on the rate of sunflower growth to determine if caffeine stimulates sunflower plants to grow taller. What is the null hypothesis for this experiment?
Answer:
A null hypothesis would be that caffeine doesn't stimulates sunflower plants to grow taller.
Explanation:
Null hypothesis: In research methods, the term "null hypothesis" is described as a type of hypothesis that proposes that there's no difference between specific characteristics of a particular data gathering process or population.
Function: The main aim of "null hypothesis" is to prove whether or not a specific test or study is supported and is separated from the researcher's own decisions and values. It is responsible for providing a way to a given study or test and is represented by H0.
what is the cell doing when it's not going through mitosis
Which of the following is NOT part of the cell theory?
A : All life functions are carried on by cells
B: All cells come from cells that are already alive
C : All cells must breath air
D: All organisms are made up of cells
Answer:
C. Because that we had to go over that. That's so easy
Help needed ASAP Look at the picture
Answer
Igneous Rock
Explanation:
It's Igneous because its coming straight from the magma. This type of rock is basically a magmatic rock.
Drive-reduction theory states that external factors motivate individuals toward certain behaviors. true or false
Answer:
true
Explanation:
ED 2020
Answer:
The answer is false
Explanation:
ED 2021
True or False? My brain refuses to compute.
Volume is defined as the amount of mass that an object has.
Answer: true
Explanation: it takes up as much space as it has