Which example best illustrates flower-pollinator coevolution?
A. Bees carry pollen grains from flower to flower.
B. Hummingbirds use long beaks to collect nectar from tubular flower
C. Butterflies rest on pale-colored flowers.
D. Ants eat flower nectar and occasionally get pollen stuck to their bodies.
Answer:
a or b I think its A tho
Explanation:
The best example iillustrates flower pollinated coevolution is Bees carry pollen grains from flower to flower.
What is coevolution in flower?Coevolution is the term used to describe the mutually reliant evolution of at least two species. Since its initial description in relation to insects and flowering plants, coevolution has been used to explain fundamental evolutionary processes like sexual reproduction, contagious diseases, and ecological communities.
Coevolution works by exerting reciprocal selective pressure on two or more species, similar to an arms race where competitors try to outdo one another. Predator-prey, host-parasite, and other competitive relationships between organisms are classic examples.
Even though coevolution often only involves two species, it can occasionally involve more. Coevolution also produces modifications that are advantageous to both parties.
Therefore, The best example iillustrates flower pollinated coevolution is Bees carry pollen grains from flower to flower.
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what is the reverse direction of endocytosis is
a-exocytosis
b-pinocytosis
c-phagocytosis
What steps of the scientific method did the four theories skip?
What were some criteria for scientists designing a way to monitor the reintroduction of wolves
The reintroduction of wolves in an area can be monitored by using radio collars, camera traps, and DNA analysis.
What were some criteria for scientists to monitor the reintroduction of wolves?The reintroduction of wolves to an area can have significant ecological and social impacts, therefore, it is important to monitor the reintroduction effort of wolves using a variety of methods such as radio collars, camera traps, and DNA analysis.
By monitoring the changes in the populations of other species in the area can help scientists to understand the ecological impact of the reintroduction of wolves.
Scientists can monitor the behavior and movements of individual wolves by analyzing their hunting behavior, and habitat use which help scientists to understand the successfully integration of wolves into the ecosystem.
Therefore, the reintroduction of wolves in an area can be monitored by using radio collars, camera traps, and DNA analysis or by monitoring the changes in the populations of other species.
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HELP ASAP!!! JUST ANSWER WITH LETTER PLEASE
Answer:
a
Explanation:
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Part B
Do you think the methods shown in these images guarantee the successful production of offspring? Argue your point using scientific reasoning.
These are the methods so that you don't say "where are the methods" just to steal points
Answer:
No. The bee may travel to a different species of plant, so the pollen may not fertilize another flower. The wind can blow the dandelion seeds into an area where they can’t sprout. The squirrel might come back for the seeds it buried in the ground.
Explanation:
Edmentum
You are riding in a car and speed up. What are the possibilities for the acceleration that your car undergoes? (Select all that apply.) Also i'm in 5th grade
-2.0 mph/s
-5.0 mph/s
2.0 mph/s
5.0 mph/s
Answer:
All of them
Explanation:
Since velocity is a speed and a direction, there are only two ways for you to accelerate: change your speed or change your direction—or change both. In a car you could accelerate by hitting the gas or the brakes, either of which would cause a change in speed.
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Answer:
Explanation: bro
Which part of the eye shrinks and enlarges depending on the amount of light that is present?
visual cortex
retina
cornea
pupil
Which part of the eye refracts light and focuses it on a single spot?
cornea
retina
iris
pupil
Answer:
Cornea
Explanation:
Internet
Answer:
Cornea
Explanation:
We can predict that summer days will be longer than winter days.
True
False
Answer:
true
Explanation:
The hemisphere that's tilted closest to the Sun has the longest, brightest days aka summer
The Moon's mass is lower than that of Earth, thus its gravity is ____ Earth’s gravity.
This is 5th grade btw
I need help please!!
Answer:
Explanation:
Solids, liquids and gases are three states of matter. In solids, the particles are tightly packed together. In liquids, the particles have more movement, while in gases, they are spread out. Particles in chemistry can be atoms, ions or molecules.
Read the excerpt from Narrative of the Life of Frederick Douglass. What is Frederick Douglass' point of view about Baltimore based on the following sentences?
"Their names were Peter, Isaac, Rich, and Jake. These were esteemed very highly by the other slaves, and looked upon as the priveleged ones of the plantation; for it was no small affair, in the eyes of the slaves, to be allowed to see Baltimore.
a. Baltimore is a place slaves rarely got to see, so those who did were held in a high regard.
b. Baltimore is a fantastic place, and if the slaves go there they can be free.
c. Baltimore was where all of the masters would meet to sell their slaves.
d. Baltimore was cursed by the slaves, because they could never see it.
I think it would be A.
Answer:
a. Baltimore is a place slaves rarely got to see, so those who did were held in a high regard.
Explanation:
"This battle with Mr. Covey was the turning-point in my career as a slave. It rekindled the few expiring embers of freedom, and revived within me a sense of my own manhood. It recalled the departed self-confidence, and inspired me again with a determination to be free. The gratification afforded by the triumph was a full compensation for whatever else might follow, even death itself. He only can understand the deep satisfaction which I experienced, who has himself repelled by force the bloody arm of slavery. I felt as I never felt before. It was a glorious resurrection, from the tomb of slavery, to the heaven of freedom. My long-crushed spirit rose, cowardice departed, bold defiance took its place; and I now resolved that, however long I might remain a slave in form, the day had passed forever when I could be a slave in fact. I did not hesitate to let it be known of me, that the white man who expected to succeed in whipping, must also succeed in killing me."
a. Douglass describes how he has been broken by Mr. Covey and can no longer fight back. His spirit is crushed, and he simply doesn't have the spirit to keep fighting.
b. Douglass hits a breaking point here and decides he will never be hit again unless he dies. He feels alive and compares death to slavery and life to freedom. He now will get freedom at any cost.
c. Douglass decribes his route to freedom and how he will kill any white man who hits him again. He describes how he will be chained down no more and will make his way towards heaven by standing up for what he believes in.
d. Douglass uses a factual tone to describe his new experience at his employment, explaining horrible moments to demonstrate how bad things were.
Answer:
I would choose B as my answer, I hope this helps you out. sorry if this is wrong! (┬┬﹏┬┬)
Answer:
Hi The anweser is d
Explanation:
d is good
1. You are given a number of mixtures. Which of the choices below would be a heterogeneous mixture?
A. Salt dissolved in water?
B. A cake batter that has been baked?
C. Fruit salad?
D. A container of iron filings?
Explain why the answer you chose is the correct answer.
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Nancy observed that her plant reproduced when she cut off a leaf and planted it. Over time, the leaf grew into a full-grown plant. How is this offspring plant different from a plant that reproduces when one plant pollinates another? Explain your answer.
Answer:
The first plant grew from a seed as is, therefore, a "full plant" but the second one is not a "full plant" because it was a part of another so it will probably be weaker than the original.
Explanation:
What happens to prey populations when predators eat some individuals
Answer: They grow more slowly, reproduce less, and populations decline. ... As predator populations increase, they put greater strain on the prey populations and act as a top-down control, pushing them toward a state of decline. Thus both availability of resources and predation pressure affect the size of prey populations.
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Answer: on the side of earth opposite the moon
at both the north and the south poles
Explanation:
"I was now, for the first time in my life, a field hand. In my new employment, I found myself even more awkward than a country boy appeared to be in a large city. I had been at my new home but one week before Mr. Covey gave me a very severe whipping, cutting my back, causing the blood to run, and raising ridges on my flesh as large as my little finger."
a. Douglass uses a factual tone to describe his new experience at his employment, explaining horrible moments to demonstrate how bad things were.
b. Douglass speaks in an angry tone, remembering how Mr. Covey treated him and showing us how much he was in pain.
c. Douglass uses a sad tone to show how upset he was at being whipped right when he got to his new employer.
d. Douglass speaks hopefully, describing how he would soon be free of Mr. Covey.
Answer:
D
Explanation:
D
Answer:
Explanation:
D
Explain how a decrease in competition between species leads to the sudden appearance of many new species?
Answer:
In a long enough time the selection pressures caused by competition can cause evolutionary changes in resource preferences or growth strategies of organisms [19]. ... When two species compete for the same limiting resource the reduction of the niche overlap may lead to evolutionary changes in both species.
Explanation:
Idaho has winter, but Florida does not.
True
False
Describe how the force of gravity acts upon an object, and give an example. btw this is 5th grade i just copied and paste what my teacher said lol please help
Explanation:
Gravitational force or force of gravity is the weakest force in the universe. It is a non contact force and is always attractive in nature.
Force of gravity always acts in the downward direction.
It is denoted by letter g.
examples of force of gravity are as follows :-
When a ball is thrown from the top of a roof it always goes downwards due force of gravity.When a ball is suspended with an inextensible string the ball's weight act download direction due to the formula of W = mg.The force that causes a car to coast downhill even when you aren't stepping on the gas.The force that causes a glass you drop to fall to the floor.The force that holds the gases in the sun.hope this helps you.
Water has a density of 1g/mL. There are four rocks that all have the same volume of 10 cubic centimeters. The mass for each of these rocks is given below. Which one of the four rocks will float when placed in water?
A.) 30 grams B.) 20 grams
C.) 12 grams D.) 8 grams
Explain why your answer is correct.
Answer:D
Explanation: Because it has the least amount of density in it. All the others are heavier, meaning they will sink. Just like if you drop a rock water and a feather, the feather will float.
Density def:
Density, mass of a unit volume of a material substance. ... Density offers a convenient means of obtaining the mass of a body from its volume or vice versa; the mass is equal to the volume multiplied by the density (M = Vd), while the volume is equal to the mass divided by the density (V = M/d).
The rock with a mass of 8 grams will float when placed in water because the density of this rock is less than the density of the water.
Given,
Water has a density of 1g/mL.
There are four rocks that all have the same volume of 10 cubic centimeters.
The mass of each of these rocks is given below.
A.) 30 grams
B.) 20 grams
C.) 12 grams
D.) 8 grams
We need to find which one of the four rocks will float when placed in water.
What is density?Density is the ratio of mass and volume.
D = mass / volume
If an object's density is less than the water density the object will float on the water.
Find the density of each rock.
All rocks have the same volume.
V = 10 cm³
Convert it into milliliters.
1 cm³ = 1 ml
10 cm³ = 10 ml
So,
V = 10 ml
A.) 30 grams
D = 30 g / 10 ml = 3g / ml
B.) 20 grams
D = 20 g/ 10 ml = 2g / ml
C.) 12 grams
D = 12 g / 10 ml = 6g / 5 ml = 1.2 g / ml
D.) 8 grams
D = 8 g / 10 ml = 4 g / 5 ml = 0.8 g / ml
We see that Option D is the only rock that is less than the density of water.
i.e 0.8 g / ml < 1 g / ml
Thus rock with a mass of 8 grams will float when placed in water.
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Will give braineist***************100 points************* PLS HELP ME pls have the correct answer
Once an object is in motion, what type of energy is being used? im in 5th grade btw
Answer:
Kinetic energy
Explanation:
Kinetic energy means you are in motion and creating friction and Potential energy is when you are staying in one place.
Hope this helps! Sry if I get it wrong!
1
Read the excerpt from Narrative of the Life of Frederick Douglass. Identify the tone in the following sentence.
"How I escaped death, I do not know. There I was, entirely alone, in a thick wood, in a place new to me. My cart was upset and shattered, my oxen were entangled among the young trees. and there was none to help me."
a. Suspensful, stressful
b. Thrilling, exciting
c. Mysterious
d. Factual
Answer:
The answer is C. The way Douglass explains his situation gives off mysterious vibes than anything else. sorry if it's wrong! (┬┬﹏┬┬)
Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
11a
Explanation:
a
In your own words, explain what the geosphere is.
Answer:
one of the shells or spherical layers within the earth delimited above and below by discontinuities
Explanation:
Hope this helps :)
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