What cell parts are common to all of these cells?
Use complete sentences.
Chlamydomonas
Spirogyra
Elodea
Squamous Epithelium
Answer: All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell's interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell; and (4). The cells of most Chlamydomonas species are more or less oval and feature a noncellulosic membrane (theca), a stigma (eyespot), and a usually cup-shaped chloroplast. Although photosynthesis occurs, nutrients also may be absorbed through the cell surface. Asexual reproduction is by zoospores. The filamentous masses come to the surface and become visible as slimy green mats. Spirogyra has a cell wall, nucleus, pyrenoid and spiral chloroplasts. This Elodea leaf cell exemplifies a typical plant cell. It has a nucleus, and a stiff cell wall which gives the cell its box-like shape. The numerous green chloroplasts allow the cell to make its own food (by photosynthesis). The central vacuole takes up most of the volume of the cell. Squamous cells tend to have horizontally flattened, nearly oval-shaped nuclei because of the thin, flattened form of the cell. Squamous epithelium is found lining surfaces such as skin or alveoli in the lung, enabling simple passive diffusion as also found in the alveolar epithelium in the lungs. brainliest?
Explanation:
How do invasive species usually affect the availability of natural resources in an ecosystem?
PLEASE HELP ME
Answer: Invasive species can harm both the natural resources in an ecosystem as well as threaten human use of these resources. ... Invasive species are capable of causing extinctions of native plants and animals, reducing biodiversity, competing with native organisms for limited resources, and altering habitats.
Explanation:
Which of these is a difference between DNA and RNA?
DNA is found in the nucleus; RNA is never found in the nucleus.
DNA consists of five different nucleotides; RNA consists of four different nucleotides.
RNA is double-stranded; DNA is single-stranded.
DNA contains thymine; RNA contains uracil.
In DNA, adenine pairs with guanine; in RNA, adenine pairs with thymine.
Like DNA, RNA is made up of nucleotides. There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
Which organism described below makes its own food?
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Which of the following fresh water biomes consists of moving water
Answer:
Biomes consists of moving water is estuaries.
how does fertilizer affect the quality of crops?
Answer:
Fertilizers replace the nutrients that crops remove from the soil. Without the addition of fertilizers, crop yields and agricultural productivity would be significantly reduced. That's why mineral fertilizers are used to supplement the soil's nutrient stocks with minerals that can be quickly absorbed and used by crops
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how does fertilizer affect the quality of crops?
[tex] \huge \mathsf \pink{Answer}[/tex]
The role of fertilizers in food production is usually underestimated. Fertilizers are food for plants.
Fertilizers replace the nutrients that crops remove from the soil. Without the addition of fertilizers, crop yields and agricultural productivity would be significantly reduced. That’s why mineral fertilizers are used to supplement the soil’s nutrient stocks with minerals that can be quickly absorbed and used by crops.
Put simply – we use fertilizer to: Provide nutrients not available in the soil.Replace nutrients removed at harvest.Balance nutrients for better. producequality and higher yield.PLEASE HELP ME AS QUICK AS POSSIBLE
*15 points* Earth Science
Based on the picture, how many tilting events has this area undergone, and which principle tells us that this area has undergone tilting?
Why may an asthmatic patient produce a wheezing sound and difficulty in breathing
Answer:
Wheezing happens when the airways are tightened, blocked, or inflamed, making a person's breathing sound like whistling or squeaking. Common causes include a cold, asthma, allergies, or more serious conditions, such as chronic obstructive pulmonary disease (COPD).
Explanation:
Mutations are a source of variation in:
A)asexually reproducing organisms
B)neither option
C)both options
D)sexually reproducing organisms
What is the name of the bond that is created when two amino acids
Answer: peptide bonds
Explanation: I think that's the answer.
What does "fishing down the food web" mean?
Answer:
Fishing down the food web is the process whereby fisheries in a given ecosystem, "having depleted the large predatory fish on top of the food web, turn to increasingly smaller species, finally ending up with previously spurned small fish and invertebrates".
how does the envirment select organisms
Answer:
The environment "selects" organisms that are better adapted to their environment and thus have a better chance to survive and reproduce. ... Helpful variations accumulate through natural selection, as the organisms that are better adapted to their environment reproduce offspring with the same variations.
Explanation:
according to darwin’s on the origin of species, what four factors
Answer:
(1) the potential for a species to increase in number, (2) the heritable genetic variation of individuals in a species due to mutation and sexual reproduction, (3) competition for limited resources, and (4) the proliferation of those organisms that are better able to survive and reproduce in the environment.
Explanation:
Need help with this!! I’m not good at writing these.
Answer:
The difference between ethical, and finally scientific questions, are based upon their root word. Such as an ethical question may involve race and heritage, while a legal question may involve anything that involves the law such as court questions and can be resolved by the judge not the jury. Finally scientific questions can involve a question thats mainly based around science such as items that you can test or measure.
Eutrophication refers to a process of change that takes place in a body of water. Which of the following causes eutrophication?
A)CFCs
B)acid rain
C)thermal pollution
D)excessive nutrients
In pea plants, purple flowers (P) are dominant over white flowers (P). If two heterozygous purple flowered plants are
crossed with each other, then what are the possible genotypes of the offspring?
0
Answer is pp only
Answer :the answer is D
Explanation:
Which gas is least abundant in Earth's atmosphere? EXTRA POINTS
A .A
B .B
C .C
D .D
PLEASE HELP! I DONT UNDERSTAND
what is the equation of Photosynthesis and cellular respiration in a chemical formula?
Answer:
I would type it up, but I decided to insert a picture.
Explanation:
What is the difference between Gene Pool, Genetic Drift and Gene Flow?
Answer:
Genetic drift is referred to the changes in allele frequency in a gene pool. Gene flow is the process of alleles moving from one population to another.
Explanation:
Calculate the diploid & haploid numbers for each of the following organisms
Organism
Diploid number
Haploid number
Camel
70
Human
46
Squirrel
20
Apple
34
3
Mosquito
Frog
13
Lettuce
18
Explain how a human baby gets 46 chromosomes:
Answer:
Meiosis is the start of the process of how a baby grows. Normally, meiosis causes each parent to give 23 chromosomes to a pregnancy. When a sperm fertilizes an egg, the union leads to a baby with 46 chromosomes.
I need a definition of representation and diversity
Answer:
resperation is the the action of breathing.
diversity is a range of different things.
Explanation:
Pls answer fast!!!! Timed!!!
Which of these descriptions best contrasts safety knowledge for cows and horses?
A. Horses have a definite flight zone, whereas cows do not
B. Cows will startle at sudden movement or noise, but horses do not.
C. Cows have a definite flight zone, whereas horses do not.
D. Cows have 360-degree vision, but horses do not
Answer:
Cows have a definite flight zone, whereas horses do not. So the answer is C.
During transcription, initiation involves the attachment of RNA polymerase to the promoter and the start of RNA synthesis.
Group of answer choices
True
False
Answer:
true
Explanation:
True. During transcription, initiation is the first step in which RNA polymerase binds to the promoter region of the DNA molecule.
The promoter is a specific sequence of nucleotides located upstream of the gene that signals the start site for transcription. RNA polymerase recognizes and binds to the promoter sequence, forming a complex called the transcription initiation complex.
Once the transcription initiation complex is formed, RNA synthesis begins. RNA polymerase unwinds the DNA double helix in the region of the gene, exposing the template strand. It then catalyzes the synthesis of an RNA molecule by adding complementary RNA nucleotides to the growing RNA chain according to the base pairing rules (A-U and G-C).
So, the statement "During transcription, initiation involves the attachment of RNA polymerase to the promoter and the start of RNA synthesis" is true. Initiation is indeed the process where RNA polymerase binds to the promoter and initiates the synthesis of an RNA molecule based on the DNA template. This is a crucial step in the process of transcription, as it determines where and when the transcription of a specific gene will occur.
To learn more about transcription, here
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As a genetic counselor, you advise couples about the possibility of genetic disease in their offspring. This morning you met with an engaged couple, both of whom are phenotypically normal. The man, however, has a brother who died of Duchenne-type muscular dystrophy, an X-linked condition that results in death before the age of 20. The allele responsible for this disease is recessive. His fiancee, whose family has no history of the disease, is worried that the couple's sons or daughters might be afflicted.
Requied:
a. How would you advise this couple?
b. The sister of this man is planning to marry his fiancée's brother. How would you advise this second couple?
Answer:
a. This couple should not worry.
b. This couple should worry.
Explanation:
a. The man should not be worried. This is because he is normal (phenotypically).
b. They should be worried because the sister of the man can be a carrier of the recessive allele. If she was a carrier, then half of their male children can be affected.
Builder a was able to underbid his competitor, builder b, by secretly using a lower grade cement when building swimming pools.both builders used the same design and specifications for the pool. Two years later, the pools made buy builder a began to leak and soon became unusable who is liable for the expense of fixing the pools?
Answer:
builder A
Explanation:
got it right
Answer:
Builder A
Explanation:
On quizlet
3. Attached earlobes is a recessive trait. If a woman with attached
earlobes has a child with a man with detached earlobes whose mother
has attached earlobes, what is the probability their child will have
detached earlobes? *
Answer:
It would be a 50% chance
Explanation:
D. R.
R. R
What are the effects of cystic fibrosis
what is a good blood pressure?
Answer: A normal blood pressure level is less then 120/80mmHg
Explanation:
# 14 please!!!! will give brainliest
Answer:
Within the bone marrow, all blood cells originate from a single type of unspecialized cell called a stem cell. When a stem cell divides, it first becomes an immature red blood cell, white blood cell, or platelet-producing cell.
Explanation:
I am not sure if this helps you....
