Answer:
Natural selection leads to evolution due to the way reproduction works. In the example of European moths during the industrial revolution, we can see this clearly. When the industrial revolution was going, there was more pollution, hence darkening the skies and leaving ash. Moths, which before were white with occasional black spots dominated the area until pollution effected their environment. Whiter moths were eaten by bird who could easily see them against the black trees and skies. These moths could no longer reproduce, they were dead. Moths with more black could survive longer to reproduce because they were harder to see. As time went along, the moths turned mostly black, showing an example of evolution.
During metaphase I, the homologous chromosomes align at the spindle equator with each homologue Question 3 options: facing the same spindle pole. facing both spindle poles. facing opposite spindle poles. not facing either spindle pole. being separated into two sister chromatids.
During metaphase I, the homologous chromosomes align at the spindle equator with each homologue facing opposite spindle poles.
What is metaphase stage?The metaphase stage of meiosis is the stage where the chromosomes/chromatids align at the center or equator of the cell in preparation for separation.
However, in metaphase I, homologous chromosomes are aligned at the center of the cell.
Each homologous chromosome face opposite spindle poles during this stage.
Therefore, during metaphase I, the homologous chromosomes align at the spindle equator with each homologue facing opposite spindle poles.
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Which of the following is NOT explicitly needed to calculate carrying capacity
Answer:
different between androclium and gynoecium
Answer:
B.
Explanation:
The other two options are things associated with different cargo, Weather isn't associated with how much an object would weigh, it's only associated with how and when the cargo will get somewhere...
What happens to the expression of the laci gene if lactose is not available in the cell?.
Answer:
There is no change
is the awnser for this
Explanation:
Question 2 of 35
The rock shown below was formed when small particles
were deposited in the water and then pressed together
over time. It contains small bits of the remains of sea
animals.
Which type of rock is this?
Answer:
it's a sedimentary rock containing fossils probably.
Which of these limiting factors is density independent?
A. Predation
B. Natural disasters
C. Competition
D. Disease
Answer:
B
Explanation:
Answer: B. Natural Disasters
Explanation: Choices A, C, D and E are all density-dependent limiting factor. Therefore, B is the correct answer.
1)A sample of red blood cells are placed in an isotonic solution and viewed under a microscope. Then, sugar is added to the solution to create a hypertonic solution. The sample is then looked at under a microscope again. what happened to the red blood cells after the sugar was added to the solution?
A- The red blood cells released water through osmosis. The release of water helped the blood cells take in more sugar for energy.
B- The red blood cells absorbed water through osmosis. The absorption of water helped the blood cells take in more sugar for energy.
C- The red blood cells released water through osmosis. The release of water helped the blood cells keep a similar concentration of solutes as the outside solution.
D- the red blood cells absorbed water through osmosis. the absorption of water helped the blood cells keep a similar concentration of solutes as the outside solution.
2)Which of the following is an example of microevolution?
A- the formation of four new species of fish in a lake over thousands of years.
B- a mass extinction that occurs because of major environmental changes in a habitat
C- a change in the frequency of body color in a species of beetles
over time
D- the formation of two new species of rodent have been isolated by a mountain range
3) a species of dark green trees is spread over a very large terrain. over a long period of time, mountains form in this area and the trees became split by the new formation. later, the trees on the east side of the mountain are all light green.
Over time, the light green and dark green trees spread to a new field that is not separated by the mountains. both types of trees are seen in the same field. however, the trees cannot produce any fertile offspring together. which of the following provides the best explanation as to why the two populations of trees cannot produce fertile offspring?
A- the trees on the west side of the mountain retained their original phenotype that became unique to their population
B- the trees on the east side of the mountain developed a new phenotype, which made them unable to produce fertile offspring.
C- the trees on the east side of the mountain experienced many genetic mutations and recombinations unique to their population
D- the trees on the west side of the mountain could not adapt to the new barrier, which made them unable to produce fertile offspring.
The red blood cell will have released water in order to equalize concentrations on either side of the membrane.
Why did the red blood cell release water?The red blood cell in question was placed in a hypertonic solution. This means that the solute concentration outside the cell is higher than that of it's inside concentration. This mean that through the process of osmosis, the cell will release water in an attempt to dilute the outside concentrations and achieve a balance. This will likely cause the cell to decrease in volume.
Therefore, we can confirm that the red blood cell will have released water in order to equalize concentrations on either side of the membrane.
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what effect does exercise have on breathing rate?
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→When you exercise
body uses more oxygen and produces more carbon dioxide.To cope with this extra demand, your breathing has to increase[tex]\rule{70mm}{2.2pt}[/tex]
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Please Help!!!!!!!!!!!!!!!!!!!!!!!!!!!
Explanation:
both, don't you agree, maybe, maybe not
Answer:
the answer i typed wont submit. Can i message to submit?
Explanation:
which of the following organisms is able to produce its own food?
a. bear
b. turtle
c. trees
d. deer
Answer:
trees
Explanation:
In the process of PHOTOSYNTHESIS.
Answer:
the answer is c
Explanation:
this is because trees are produsers so they can provide their own food. if you need further explanation search "examples of proudusers and consumers" and look at images. hope that helps :)
Raquel tends to get extremely upset if she does not get her way, and she feels that it is a reflection of how much of a failure she is bound to be. raquel would most likely benefit from __________. a. systematic desensitization b. family therapy c. rational-emotive behavior therapy d. aversion therapy please select the best answer from the choices provided a b c d
Answer:
C. rational-emotive behavior therapy
Explanation:
cuz the other dude is dum and doesn't know how to just not answer if he doesn't know
What are the three processes in posttranscriptional modification that must be completed before transcripts can be translated in eukaryotes?.
Answer:
A
Explanation:
I did the USA Testprep
What is one major difference between viruses and bacteria?.
Answer:
Bacteria are free-living cells that can live either inside or outside a body. However viruses are a non-living collection of molecules that rely on a host to survive.
Explain the difference between natural selection and genetic drift.
in your own words pls
Answer:
The major difference is that natural selection is a process where more adaptive species are responding to the environmental changes, and genetic drift is a random selection.
Explanation:
Science
What is the term for a community of organisms and the abiotic environment that affects them?.
Answer:
An ecosystem consists of a community of organisms together with their physical environment. Ecosystems can be of different sizes and can be marine, aquatic, or terrestrial. Broad categories of terrestrial ecosystems are called biomes. In ecosystems, both matter and energy are conserved.
Explanation:
hope this helps
A bee gets nectur from a flower, then goes to another flower and the pollen falls off, what does this represent?
Answer:
Represents pollination as pollen is being transmitted to different plants allowing plants to spread
Describe one way that burning rain forest trees affects nutrient cycling differently than cutting them down and leaving them on the forest floor.
Burning trees releases co₂ in the atmosphere, but cutting down trees falling on the ground nutrient returns to the land. Plants which is falling down decomposes and nutrient return to the soil.
How do trees affect the nutrient cycle?Deforestation affects the nutrient cycle because plants are the storage site of many nutrients. The nutrient cycle is interconnected with plants most of the nutrient is directly absorbed by the soil.
Plants absorb nutrients from the soil, and the animal takes nutrients from the plants, when an animal dies its body decomposes in the soil again nutrient dissolve in the soil.
Burning plants releases stores of nitrogen, carbon, and sulfur these create a loss in biodiversity and affect the nutrient cycle.
Therefore burning rainforest affects the nutrient cycle by releasing nutrient components in the atmosphere, so cutting down does not affect
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What cell organelle is involved in joining amino acids to form a protein?.
Answer:
Ribosomes
Explanation:
Ribosomes like amino acids together to form proteins.
Pastoral societies are closely linked with postindustrial societies. please select the best answer from the choices provided t f
The statement pastoral societies are closely linked with post-industrial societies is absolutely false. Pastoral societies are found in the present time also.
What do you mean by Pastoral societies?Pastoral societies may be defined as societies that have an unnecessary subsistence priority on herding domesticated livestock.
Post-industrial societies are found before the time of industrialisation, but pastoral societies are seen in the present time as well in many parts of the world.
Therefore, the statement pastoral societies are closely linked with post-industrial societies is absolutely false.
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the answer is false :)
Question 2 of 15
Which quality has the most impact on a source's credibility?
A. Which organization published the source
B. How detailed the source is
C. What type of evidence the source gives
O D. Whom the author knows
Answer:
A. which organization published the source.
Explanation:
Why is it important to study Physiology?
Answer:
It offers a radical expertise of everyday body feature, permitting extra effective treatment of unusual or ailment states.
Explanation:
An important trend in animal evolution was cephalization, or development of a head. An animal is said to show cephalization when it __________.
Answer:
has an aggregation of sensory neurons at the anterior end
Explanation:
Don't worry, I want you to succeed :D
Would you consider yourself as focused person? why do you say so?
Which of the following can help meet rising food demands?
O advising people to eat less
O building more warehouses to store food
O genetically modifying organisms
O growing more crops like cotton and sunflowers
HELPPPP !! . Which of the following statements is not true?
a. The human body contains trillions of cells.
b. The cells that make up an organism must compete to survive.
c. Each human being began as a single cell.
d. Cells inside your body are living, reproducing, and dying all the time.
Answer:
c
explained: So you see I'm actually on the same subject, but my research shows that c is wrong bc the human body is a multicellular
Plss help me!! I'll give brainliest for best explanation!!
What color(s) eyes do the parents have? Explain your answer.
What color(s) eyes do the children have? Explain your answer.
Answer:
See below ↓↓
Explanation:
Parents
The genotypes of the father and mother are Gg and GG respectivelyAs the dominant gene is present in both of them, their eye color will be greenChildren
The offsprings have a possibility of either Gg or GG genotypeHence, their offsprings will also have green eye colorWhich of these organisms would most likely live in a intertidal zone?
A. algae
B. sunflower
C. chemosynthetic bacteria
D. Venus fly-trap
Answer:
a algae
Explanation:
it lives there in the ocean
Of these organisms, algae would most likely live in a intertidal zone.
How does algae survive in intertidal zone?Any organism that lives in the intertidal zone must be able to tolerate powerful waves and variations in moisture, temperature, and salt. Sea stars, snails, seaweed, algae, and crabs can be found in the intertidal areas of rocky shorelines. Many brown algae in the intertidal zone have alginic acid in their cell walls, which acts as a water-absorbing gel and prevents the algae from drying up during low tides. In environments with high nitrogen levels, intertidal macroalgae can also outgrow seagrasses. In certain situations, certain algae can be a nuisance. The blue-green algae, also known as cyanobacteria, are ephemeral in their growth and recurrence. They can form mats or filaments and are encrusting.learn more about intertidal zone here: https://brainly.com/question/1346004
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a farmer spends much of her time outdoors and as a result has very tanned skin. what would the hypothesis of inheritance of acquired characteristics say about the skin of her children?
Answer:
Her kids will still have her natural skin tone they just may also be able to tan in the sun.
Explanation: her kids aren't going to come out tan just because she has been tanning. If it isn't her or her partners skin tone the kids will not just aquire it.
How does sound travel ? How does the medium the sound travels through help determine the speed of sound ?
The speed of a sound wave depends upon the medium through which it travels. In general, sound travels faster through solids than through liquids or gases. Also, the denser the medium, the slower sound will travel through it. The same sound will travel at a different speed on a cold day than it would on a warm day.
what happens after point A in regard to the population and resources available at that point in time?
Answer: there are enough available resources for the population
Explanation: the resources and the population is steady however over time the population increases in which there will be not enough resources. I hope this helped I’m doing the same thing lol :)))
In Point A, with regard to the population and resources available at that point in time, the populace has access to ample resources.
What is a population?The term “population” refers to all citizens who are either permanently residing in a country or who are just passing through. This indicator reveals how many people typically reside in a certain area.
Growth rates are the population changes that occur each year as a result of births, deaths, and net migration. The resources and the population are stable, but as the population grows, fewer resources will be available.
Populations can include but are not limited to, individuals, animals, organizations, structures, buildings, cars, farms, objects, or occasions.
Therefore, in Point A, the population has access to enough resources given the population and resources available at that time.
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Describe the three structural components of an rna nucleotide monomer.