Answer:
1. Stabilizing Selection
2. Directional Selection
3. Disruptive Selection
Explanation:
Stabilizing Selection
This type of natural selection occurs when there are selective pressures working against two extremes of a trait and therefore the intermediate or “middle” trait is selected for. If we look at a distribution of traits in the population, it is noticeable that a standard distribution is followed:
Example: For a plant, the plants that are very tall are exposed to more wind and are at risk of being blown over. The plants that are very short fail to get enough sunlight to prosper. Therefore, the plants that are a middle height between the two get both enough sunlight and protection from the wind.
Directional Selection
This type of natural selection occurs when selective pressures are working in favour of one extreme of a trait. Therefore when looking at a distribution of traits in a population, a graph tends to lean more to one side:
Example: Giraffes with the longest necks are able to reach more leaves to each. Selective pressures will work in the advantage of the longer neck giraffes and therefore the distribution of the trait within the population will shift towards the longer neck trait.
Disruptive Selection
This type of natural selection occurs when selective pressures are working in favour of the two extremes and against the intermediate trait. This type of selection is not as common. When looking at a trait distribution, there are two higher peaks on both ends with a minimum in the middle as such:
Example: An area that has black, white and grey bunnies contains both black and white rocks. Both the traits for white and black will be favored by natural selection since they both prove useful for camouflage. The intermediate trait of grey does not prove as useful and therefore selective pressures act against the trait.
Which of the following statements about hepatic cells is FALSE?
A. Hepatic cells are the “chemical processing factory”
B. Hepatic cells detoxify drugs and alcohol
C. Hepatic cells are also known as Kupffer cells
D. Hepatic cells release vitamins
Answer:
the answer to this question is A
Explanation:
hope its helps
have a great day
Answer: C. Hepatic cells are also known as Kupffer cells
Explanation: Got it right on a test
1. What common characteristics do you notice in all the marine ecosystems? What are some major differences?
Answer:
Marine ecosystems are characterized by factors such as availability of light, food and nutrients. Other factors that affect marine ecosystems include water temperature, depth and salinity, as well as local topography. Changes in these conditions can change the composition of species that make up the marine community.
1. Which human activity would preserve nonrenewable resources? *
A. deforestation
B. recycling
O c. heating home with fossil fuels
Answer:
B recycyling
Explanation:
The resources which are present in a limited amount and must be used carefully are called nonrenewable resources. For example - petrol, coal, and etc.
The correct answer is B.
There are many activities that help humans preserve non-renewable resources because they are present in a very limited amount.
For example, the amount of coal is limited on the earth. we have to reuse it and recycle it and its end product.
Hence, the correct option is B that is recycling.
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Which pharmacological treatment would help a patient with GERD the most?
o anti-inflammatories
antidiarrheals
antibiotics
antacids
Answer:
Antacids
Explanation:
I took the test and I got it right ✅
The pharmacological treatment would help a patient with GERD the most is antacids as o anti-inflammatories cannot be used.
What is GERD ?
A digestive disorder wherein belly acid or bile irritates the meals pipe lining.
Aantacids sellers have emerge as the medication of preference for GERD. Both proton pump inhibitors (PPIs) and histamine H2-receptor antagonists (H2-RA) are powerful and may be properly used to deal with GERD.
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What do you call a process in which cells and organisms produce other cells and organisms of the same kind
A. reproduction
B. oxidation
C. respiration
D. perspiration
Answer:
A. reproduction
Explanation:
X- it's not oxidation because oxidation is just a reaction in which atoms of an element lose electrons
X- it's not respiration because it's literally just taking a breath; breathing
X- it's not perspiration because perspiration is just sweating
✔- reproduction is making copies of the same kind.
¹ex.
fish + fish = another fish with both genetics from mom and dad, looking like a copy of them
How are cancer cells different from noncancerous cells?
A. Cancer cells do not contain DNA; therefore, the body cannot regulate their growth and division.
B. Cancer cells do not respond to the normal signals that shut down the cell division process.
C. Cancer cells are neither recognized nor destroyed by the body's immune system.
D.Cancer cells grow to extremely large sizes, forming tumors that block the flow of blood.
Answer:
B
Explanation:
Cancerous cells grow out of control because they do not receive the signals to stop grow. This causes tumors to form, and continue growing until treated.
What is the complementary sequence of TACGTATGAAAC?
Answer:
ATGCATACTTTG
Explanation:
The letters are alternate of each other.
T-A
A-T
G-C
C-G
ATGCATACTTTG is the compementary sequence
During a fierce storm a large number of tall trees on a island are uprooted by the wind and die most of the trees on the islands are now short trees and produce seeds that grow into short trees what concept is shown in this example
Answer:
Natural Selection
Explanation:
In all the three options namely Artificial Selection , Genetic Engineering and Gene Splicing there is involvement of human beings in gene modification. While in the case of natural selection genetic modification occurs through the evolutionary process through several hierarchical orders.
what did all living thinhs on earth originally evolved from?
Answer:
If correct u welcome if wrong sorry ;)
When cyanobacteria evolved at least 2.4 billion years ago, they set the stage for a remarkable transformation. They became Earth's first photo-synthesizers, making food using water and the Sun's energy, and releasing oxygen as a result.
darwin found the bones of the ground sloth and what he thought was an anciet capybara in south america. he asked around, but nobody in south america has ever seen either of thise animals alive. what had happen to them?
Answer:
They're extinct
Explanation:
Anaerobic respiration produces ___
molecules of ATP.
Answer:
Anaerobic respiration produces 2
molecules of ATP.
Explanation:
Answer:
anaerobic respiration produce 2
What are the steps of DNA replication
Answer:Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment. During separation, the two strands of the DNA double helix uncoil at a specific location called the origin.
Explanation:
plssss help Which phrase describes conduction?
transfer of heat by the actual movement of warmed matter
the process in which energy is emitted by one object, transmitted through space, and absorbed by another
the process in which energy is released by molecules breaking apart
transfer of heat between two objects that are touching
Answer:
the process in which energy is emitted by one object, transmitted through space, and absorbed by another is correct.
Explanation:
The transfer of energy is not by movement.
Answer:
A: transfer of heat by the actual movement of warmed matter
Explanation:
I took the test and got all of the questions right.
Have a good day! :)
Nuestro planeta esta habitada por numerosas ____, muchas de ellas extendidas en grandes y diversas zonas. Sin embargo, existen especies que habitan una sola ____ con características ____ únicas para su desarrollo.
Answer:
Nuestro planeta esta habitada por numerosas especies, muchas de ellas extendidas en grandes y diversas zonas. Sin embargo, existen especies que habitan una sola área/región con características ambientales únicas para su desarrollo.
Explanation:
Entre las miles de especies que habitan el planeta, muchas de ellas pueden estar ampliamente distribuidas, mostrando adaptaciones a una gran variedad de ambientes y hábitats, mientras que muchas otras solo se encuentran restringidas a determinadas areas o regiones particulares que presentan condiciones ambientales determinadas. Esta diferencia en distribución esta muy relacionada a la historia de la especie, a la edad de la misma sobre la tierra, adaptaciones a los ambientes y capacidades reproductivas y de dispersión.
Dentro de la clasificación de especies de acuerdo a su distribución, podemos mencionar a las especies
nativas: aquellas que habitan y se distribuyen las áreas naturales donde se originaron,endemicas: entran dentro del concepto de nativas, pero a parte se caracterizan por habitar unicamente una región en particular debido a las condiciones ambientales que les son propicias para su desarrollo. Estas especies no pueden trasladarse a otras regiones.exoticas: aquellas especies que salen de su area natural de distribución para habitar otras areas mas lejanas. Allí pueden establecerse e interactuar con especies nativas sin causar grandes daños.invasoras: especies exoticas que llegan a otras areas, que se establecen y que tienen la capacidad de reproducirse a una tasa superior a la de las especies nativas, invadiendolas y desplazandolas. Interactuan con las especies nativas y causan daños importantes.Los términos nativos, endemicos, exóticos son relativos al área a la que se esté haciendo alusión: un continente, un país, una región o un bioma.
Which of the following is most likely a DNA nucleotide?
O deoxyribose, guanine, phosphate
O a base, a sugar, and a phosphate
O ribose, phosphate, and adenine
O deoxyribose, uracil, and phosphate
Answer:
deoxyribose, uracil, and phosphate
Explanation:
A humpback whale is classified as a mammal while a basking shark is a fish. Which taxonomy classification are the same for a humpback whale and a basking shark
Answer:
A. Domain, kingdom, phylum only
Explanation:
The domain is Bacteria, Archaea, and Eukarya which every living thing falls under, the kingdom is every animal (now that's excluding plants and bacteria), and the phylum is a primary category in biological taxonomy especially of animals that ranks above the class and below the kingdom.
The taxonomic classification that is the same for a humpback whale and a basking shark is Phylum.
A chordate refers to an animal (Kingdom Animalia) of the phylum Chordata.This phylum includes all vertebrates as well as two other subphyla tunicates and cephalochordates.Chordates are characterized to have a notochord, pharyngeal slits (embryo development), nerve cord, and a tail.In conclusion, the taxonomic classification that is the same for a humpback whale and a basking shark is Phylum.
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3. Which tool do scientists use to classify plants that is based
on a series of paired characteristics?
observation power
dichotomous key
sketch book
plant classification
What phase of mitosis are the chromosomes taken from? Why?
Answer:Metaphase
Explanation:
Which concept is part of the modern evolutionary theory, but not Darwin’s original theory?
What is the answer to this?
Answer:
You mean what's the answer right?
Explanation:
This is a bit to complex by the way
Which side will gain water
Answer:
water will move in the direction where there is high concentration of solute
Explanation:
mark me as smart kid
A __ fault generally occurs at a transform boundary
Answer:
A strike-slip fault generally occurs at a transform boundary
Can anyone give me two mineral feed ingredients for poultry birds ?! 20 points for it
Answer: aragonite oyster shell crab meal
Explanation: aragonite is for calcium and oyster shell also has calcium. Crab meal provides small amounts of protein and minerals
What are the two resulting cells formed
from a single cei cared?
A Brother cells
D Parentals
Answer:
D parentals
not A
An earthquake occurs in which 'sphere?
Answer:it effects the biosphere and the hydroshere
Explanation: i learned this pls mark brainlist
Answer:
lithosphere
Explanation:
earthquakes are caused by shifts in the outer layers
hope that helps
Have a good day
Question 4(Multiple Choice Worth 5 points)
(LC)
What was one conflict that was resolved in the resolution?
The characters learned to respect each other enough to discuss why the boy tried to grab the purse.
Mrs. Jones took care of the boy's hunger.
The boy asked for the money to buy shoes.
Mrs. Jones taught the boy to have manners.
The answer is the boy asked for money
Answer:
The characters learned to respect each other enough to discuss why the boy tried to grab the purse.
Explanation:
In the short story "Thank You, Ma'am" by Langston Hughes, a young, hungry boy was about to rob a woman of her purse. But as circumstances would turn out, he was unsuccessful in that attempt but then learned a valuable lesson from the very woman he had targeted.
One conflict that was resolved in the resolution was that both of the characters, Mrs. Luella Bates Washington Jones and Roger, learned to respect one another. By her act of inviting him to her home and preparing food for him, Roger also came to respect and trust the woman. It was this faith that helped them discuss the events that led to Roger's failed attempt of robbing Mrs. Jones, and Roger left the house with a sense of appreciation and a change of heart.
Thus, the correct answer is the first option.
what are osmosis..in 50 words
Osmosis is a passive process and happens without any expenditure of energy. It involves the movement of molecules from a region of higher concentration to lower concentration until the concentrations become equal on either side of the membrane.
Any solvent can undergo the process of osmosis including gases and supercritical liquids.
Let us have a detailed look at the different types and effects of osmosis in detail.
Which type of mutation can be passed to future generations?
Enzyme mutations
Somatic mutations
Neutral mutations
Gamete mutations
Answer:
gamete mutations can be type of mutations
In which stage of the cell cycle is the cell preparing for division? *
G1
S phase
G2 phase
Answer: Image result for In which stage of the cell cycle is the cell preparing for division? *
Cell cycle has different stages called G1, S, G2, and M. G1 is the stage where the cell is preparing to divide. To do this, it then moves into the S phase where the cell copies all the DNA.
Explanation:
Urea diffused in all regions of the filter during countercurrent flow. Using what you know about the sizes of urea and potassium, which graph shows what would happen to potassium during countercurrent flow?
Answer:Diffuse in all regions of the filter
Explanation:The potassium level in dialysis is often lower than usual because of incomplete equilibration