how the collapse of the forest ecosystem on easter island affected the human population that lived there?
Answer:
Essentially, the population that lived on Easter Island was trapped and eventually died off.
Explanation:
The people on Easter Island started creating the famous statues that I'm sure everyone knows about today, to help protect them from possible invaders. Once the people started settling in, they were provided with a number of natural resources and supplies, which unfortunately they had taken these resources for granted. Since they had been using all of the island's resources and using the many trees there for their civilization, they had no means of leaving the island once the last trees were gone. They were pretty much trapped on a dead island due to them causing the island to go through deforestation.
If the plant absorbs 50 kcals of energy units, how much energy will the mushroom get from hawk that ate mouse that ate plants.
2. Which is the best summary of the selection?
A.
B.
Leaves are something to be thankful for because they produce carbohydrates.
Leaves conduct photosynthesis, which converts energy from the Sun into chemical energy
that is useful and important to humans.
Photosynthesis is a vital part of the food chain.
Radiant energy is the most important part of photosynthesis. It is energy from the Sun,
which leaves are thankful for.
C.
D.
Explanation:
.
Leaves conduct photosynthesis, which converts energy from the Sun into chemical energy
what modern day scientist use to learn the Ordovician Period
Rocks from the Ordovician Period contain evidence that plants began colonizing dry land at this time. Most experts agree that the ancestors of land plants first evolved in a marine environment, then moved into a freshwater environment and finally onto land.
Ordovician Period, in geologic time, the second period of the Paleozoic Era. It began 485.4 million years ago, following the Cambrian Period, and ended 443.8 million years ago, when the Silurian Period began. Ordovician rocks have the distinction of occurring at the highest elevation on Earth—the top of Mount Everest.
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· Water participates directly in the light reactions of photosynthesis by
a. donating electrons to NADPH.
c. accepting electrons from the electron
b. donating electrons to photosystem II. transport chains.
d. accepting electrons from ADP.
what needs to occur for a fluorescent mineral to give off light?
Fluorescent minerals contain particles in their structure known as activators, which respond to ultraviolet light by giving off a visible glow. Ultraviolet light is a form of electromagnetic radiation invisible to the human eye. There are two classified ultraviolet wavelengths: longwave and shortwave.
What person is in this image?
Answer:
bts petson
Explanation:
look
Which of the following statements is TRUE if Joel and Karen are doing exactly the same things, but Joel has a higher metabolic rate than Karen?
Answer:
a. Joel burns more calories than Karen.
Explanation: is correct
active transport moves mineral ions into root hair cells through cell membrane proteins. Explain how protein molecules move ions across a membrane during this process. (3marks)
Explanation:
Small and nonpolar (hydrophobic) molecules can freely pass through the membrane, but charged ions and large molecules such as proteins and sugars are barred passage.
Nonpolar and small polar molecules can pass through the cell membrane, so they diffuse across it in response to concentration gradients.
What is the temperature shown on the thermometer?
Answer:
22
Explanation:
the thermometer goes by 2
If a person exerts 150 N of force to move 10 meters, then how much
work did they do?
each upward movement of the basilar membrane causes the stereocilia of the inner hair cells to bend, opening __________ gates.
Why are proteins not found in the proximal convulated tubule
what is the thickest and longest nerve in the body
A student is researching the inheritance patterns of different traits in chickens. She hypothesizes that red feathers are dominant over black, and the trait for crests are dominant over non-crested. She performs a test cross to confirm her hypothesis. To produce the F1 generation, she crosses two parents-- a chicken that is homologous for traits showing red and crested and a chicken that is homologous for traits showing black and non-crested. Which ratio best represents the phenotype of the F2 generation
9:3:3:1
1:1:1:1
2:2:1:1
16:0
Answer:
9:3:3:1
Explanation:
In this inheritance pattern, the ratio that best represents the phenotype of the F2 generation is 9:3:3:1. Thus, the correct option for this question is A.
What is a Phenotype?A phenotype may be defined as the mechanism of expressing genotypes in the form of traits. In more simple words, it is also characterized as the morphology or physiology which comes due to the combination of alleles.
If a trait of red feathers is denoted by R and the trait of black feathers is denoted by r, then R > r. Similarly, a trait of crests is denoted by C and the trait of non-crested is denoted by c, then, C > c.
Now, RRCC is crossed with rrcc, the F1 offspring have the genotype RrCc with the phenotype of red feathers with crests. Now, RrCc is selfed, it produces the ratio of 9:3:3:1. This is an example of a dihybrid cross.
Therefore, in this inheritance pattern, the ratio that best represents the phenotype of the F2 generation is 9:3:3:1. Thus, the correct option for this question is A.
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Which processes contribute to the formation of chemical sedimentary rocks?
Organisms decay in a solution.
Minerals dissolve and crystalize.
Rock fragments squeeze together.
The remains of plants and animals
Explanation:
Rock fragments squeeze together
Which of the following snack foods is comprised mainly of carbohydrates?
Answer:
d. All of the above
Explanation:
which parts of the monomers involved in the dimer formation
Answer:
A dimer (/ˈdaɪmər/) (di-, "two" + -mer, "parts") is an oligomer consisting of two monomers joined by bonds that can be either strong or weak, covalent or intermolecular. The term homodimer is used when the two molecules are identical (e.g. A–A) and heterodimer when they are not (e.g. A–B).
Explanation:
an adaptation of the epithelial cells of the proximal convoluted tubule for reabsorption is
How can slime molds be both unicellular and multicellular?
What is celebrated on 29th of July?
Answer:
my birthday just joking
the ans is world tiger day
Answer:
A lot of things are celebrated on 29th of July, and one thing is Global Tiger Day
Explanation:
THIS IS THE PICTURE
Answer:
looks yummy
Explanation:
What is that btw hahaha
what is the general purpose of the light reactions of photosynthesis
Answer:
The overall purpose of the light-dependent reactions is to convert light energy into chemical energy. This chemical energy will be used by the Calvin cycle to fuel the assembly of sugar molecules.
Explanation:
Sana tama hshshshshsh
Uy may nag abroad ah
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PLS HELP ME PLSSSSSSSS
Maddie’s favorite meal is breakfast, and she is careful to include healthy components along with her favorite foods. She knows breakfast helps to keep her energy levels up until lunch. Maddie's digestive system helps her body get energy from food. How do the nutrients from food get to the body's cells? A. The nutrients are distributed by the digestive system to the parts of the body that need them. B. The nutrients are picked up and transported around the body by blood from the circulatory system. C. The nutrients are absorbed directly into the cells that need them. D. The circulatory system brings nutrients to the digestive system to be processed for the cells.
Answer:c
Explanation:why i don’t know I just want the points
How does lack of water conservation affect the hydrological cycle
Human activity such as the burning of fossil fuels has an effect on the overall increase of the Earth's temperature. Raising the Earth's temperature means that there is an increase of evaporation, melting of land and sea ice, and impacts on other processes of the water cycle that adversely affect the climate on Earth.
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What phase of mitosis is pictured below?
Answer:
Its a Anaphase
because the chromatids of each chromosomes have separated and are moving towards the poles
Plant cells like ____ hair cells have a long projection to increase the surface area for absorption of water
Answer:
root hairs
Explanation:
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Language: English Español
6)
A student observes a cell under a microscope. The cell contains chromosomes that show up inside of a nucleus surrounded by an
envelope. Based on the infon nation here, the student was able to determine whether the cell was prokaryotic or eukaryotic. After
making the distinction, the student could assume the cell came from certain cell types. From which potential organism(s) was this
cell-derived? Select ALL that apply.
A)
plant cell
B)
animal cell
fungal cell
D)
bacterial cell
E)
methanogenic Archaea cell
2
The potential organism was derived from plant cell, animal cell and fungal cell.
Cell nucleus
The cell nucleus is the largest organelle found in the cytoplasm and it is present only in eukaryotic cells. It is in the nucleus that the chromosomes carrying the genes responsible for controlling cellular activities are found.
Whit this information, we can conclude that the potential organism was derived from plant cell, animal cell and fungal cell.
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What does an optical part of the light microscope consist of? A. Ocular.
B. Diaphragm.
C. Condenser.
D. Turret
in what generation does this population reach its carrying capacity
Answer:
The logistic population growth happens as the growth rate declines as the population exceeds the carrying power. The highest number of people in a community that the ecosystem can sustain is carrying capacity.
Explanation:
A population may reach its carrying capacity in any generation, depending on a variety of factors such as the availability of resources, predation, competition for resources, and other ecological and evolutionary processes.
What is carrying capacity?The carrying capacity of a population is the maximum number of individuals that can be supported by a particular environment over a given time period. A population may reach its carrying capacity in any generation, depending on a variety of factors such as the availability of resources, predation, competition for resources, and other ecological and evolutionary processes.
For example, if a population of animals is introduced to a new habitat with abundant resources, it may be able to grow rapidly and reach its carrying capacity relatively quickly. On the other hand, if the population is facing competition from other species or is subjected to predation or other limiting factors, it may take longer for the population to reach its carrying capacity.
It's important to note that the carrying capacity of a population is not a fixed value, and it can change over time due to changes in the environment or the population's own characteristics. For example, if the population grows to a size that exceeds the carrying capacity of its environment, it may begin to experience negative impacts such as resource depletion, disease outbreaks, or other factors that can reduce its size and bring it back down to the carrying capacity.
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