PLEASE BE QUICK! Question 7 of 35
Why do scientists use microscopes to study cells?
A. Because most cells are too dangerous to view without protection
B. Because it is quite rare to find living things that are made of cells
C. Because most cells cannot be seen without magnification
D. Because cells can be studied only after they have died
SUBMIT

Answers

Answer 1

Answer:

C

Explanation:

Most are too small to be seen with the naked eye. so they must be looked at with a microscope

Answer 2

The answer is C) Because most cells cannot be seen without magnification

Without the proper tools, the naked eye will never be able to see a cell. But when you have the correct tools, you will be able to spot them, as long if you know what you are doing. Cells are too small for the naked eye to see, just like trying to find the needle in the haystack without touching it.


Related Questions

Replication of eukaryotic DNA a. must be controlled to coordinate with the cell cycle b. takes place twice during each cell cycle c. must occur faster than replication of prokaryotic DNA d. takes place during mitosis

Answers

C. must be controlled to coordinate with the cell cycle

Hope this helps :)

what are microorganisms? write the living and non living characteristics of virus. ​

Answers

Answer:

In easy word ......the virus or organism that can only be seen through Microsoft is called microorganisms

Explanation:

Those organisms which cannot be seen under naked eyes and require microscope to be seen are called micro-organisms.

The main living character of the viruses is they contain DNA or RNA as the genetic material. The main non-living character of the viruses is they can be crystallized like other chemicals

Hope ,this helps you!

Life cycle of peziza

Answers

growth stage

While the pizza category was in the growth stage, the product life cycle of long-lived products was observed in the rice category.

Which of the following describes the product of Meiosis?
A. 4 genetically identical diploid cells
B. 4 genetically unique diploid cells
C. None of these are correct
D. 2 genetically unique haploid cells

Answers

Answer:

C

Explanation:

meiosis made 4 haploid daughter cells, with 1 round of dna replicates and followed by 4 division of haploid daughter cells

Explain why the lack of surfactant would result in respiratory distress. Furthermore, what type of acid-base disorder might she develop and how would her body compensate. Be detailed in your explanation and support your answer with facts from your textbook, research, and articles from scholarly journals.

Answers

Answer:

Due to lack of expansion of lungs.

Explanation:

The lack of surfactant compound would result in respiratory distress because Surfactant enables the lungs to expand more easily which allows easiness in respiration. Without surfactant, the air sacs in the lungs will collapse very easily. This collapse leads to decreased amounts of air or oxygen in the lungs which makes it very difficult for the people or infant to breathe.

Which of the following combinations of phylum and description is correct? (and why?)
a) Nematoda − roundworms, internal skeleton
b) Porifera − gastrovascular cavity, coelom
c) Echinodermata - radial symmetry as a larva, coelom
d) Platyhelminthes − flatworms, gastrovascular cavity, no body cavity

Answers

it’s answer c!! i just took that and i got it right

The phylum and description that is correct among the options is Platyhelminthes − flatworms, gastrovascular cavity, no body cavity

Flatworms belongs to the phylum platyhelminthes. They are said to have no true body cavity, but they do have bilateral symmetry. For the lack of a body cavity, it is called acoelomates.

They also have an incomplete digestive system. That is, the digestive tract has only one openings

From the above we can therefore say that Option d is the correct option that gives the true description of the phylum platyhelminthes

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In a study involving a cell-free translation system from coli, the polyribonucleotide AUGUUUUUUUUUUUU directs the synthesis of the oligopeptide fMet-Phe-Phe-Phe-Phe. In the presence of a new class of translation-targeting antibiotics that bind to the large ribosomal subunit, the ribosomal complex forms, the initiator tRNA binds the mRNA, the second tRNA enters the A site of the ribosome, but no peptide bonds form. Which of the following is a likely function of these new antibiotics?

a. Blocks peptidyl transferase activity
b. Inhibits tRNA aminoacyl synthetase function
c. Inhibits ribosomal translocation along the mRNA
d. Prevents anticodon base-pairing with the codon
e. Blocks binding of the Shine-Dalgarno box to the rRNA

Answers

Answer:

c. Inhibits ribosomal translocation along the mRNA.

Explanation:

Initiator tRNA is thought to bind directly to P-site of small ribosomal sub unit. These tRNA are positioned at P site and remain attached to tRNA located at this site. Initiation factor helps to mediate this event.

Which is the only element in group 1 on the periodic table that forms covalent bonds?

hydrogen
lithium
potassium
sodium
.

Answers

Answer:

Hydrogen

Explanation:

Hydrogen is the only nonmetal in group 1, therefore it is the only element in group 1 that forms a covalent bond.

Answer:

A.

Explanation:

What is the role of pitutary gland in puberity

Answers

Answer:

Puberty has begun. The trigger for puberty in both boys and girls is the production of 'gonadotrophin releasing hormone' (GnRH) from a part of the brain called the hypothalamus. This hormone stimulates the pituitary gland to release two hormones, Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH).

Explanation:

Please Mark me brainliest

Answer:

the gland produce hormones that help to regulate growth and body functions.

What type of cells are produced during
meiosis?

A. asexual cells
B. diploid cells
C. division cells
D. haploid cells

Answers

Answer:

D. haploid cells

Explanation:

Meiosis results in 4 gametes with 23 unpaired chromosomes, making them haploid cells.

In this experiment, you are looking at the effect of various germicides on microbial growth. The organism that you are using for this experiment is baking yeast, which is a eukaryote. Do you think that this organism would be more or less susceptible to the various germicides than a prokaryotic organism, such as bacteria?

Answers

Answer:

Less susceptible.

Explanation:

This organism would be less susceptible to the various germicides than a prokaryotic organism, such as bacteria because the form and structure of eukaryotic organism is different from the prokaryotic organism so the germicides no or less affected the eukaryotic organism so we can say that the  the eukaryotic organism which is used in baking would be less susceptible to the various germicides than a prokaryotic organism.

vì sao DNA của Prokaryote phải siêu xoắn

Answers

Answer:

poop

Explanation:

poop

What is the best way to ensure that results of a study are generalizable to a population?

By making sure to use as many participants as possible

By making sure the results are significant

By making sure to use an equal number of men and women

By using random assignment

By using a random selection of people in that population

Answers

The best way to ensure that results of a study are generalizable to a population is by using a random selection of people in that population

The goal of every research experiment is to obtain results that are  generalizable to a whole population.

This is achieved by the method of random selection. In random selection, members of the of the population are selected in such a way that is representative of the entire population. If for instance, I want to study a school having six classes which comprises of boys and girls. There are 700 students in the school and I need only 180 students to participate in a study whose results will be extrapolated to all the 700 students. I can decide to randomly select 15 boys and 15 girls from each class to participate in the study. This is an example of random selection.

In this way, the results obtained from the study is reflective of the whole population even though only a sample of the population actually participated in the study.

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what is the difference of biology and human and social biology?????

Answers

Answer:

Man's health (human biology) affects and effects change on society (social biology). Human and social biology scrutinizes the human body, disease, health, nature and the environment's influence on biology.

Answer:

Man's health (human biology) affects and effects change on society (social biology). Human and social biology scrutinizes the human body, disease, health, nature and the environment's influence on biology.

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which of the following trairs did Mendel not test
1.) Flower position
2.) Seed color
3.) Number of seeds
4.) Stem length​

Answers

3) number of seeds and 4.) stem length

Which is our body part help us to maintain balance.

Answers

Answer:

cerebellum

Explanation:

The cerebellum is a small part of the brain positioned at the back of the head, where it meets the spine, which acts as the body's movement and balance control centre.

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Tai không chỉ có vai trò để lắng nghe mà còn hỗ trợ trong việc giữ cân bằng


reptilesimprovements over amphibians​

Answers

The person above me is correct

HELP PLEASE FAST ASAP PLEASE HELP

Answers

Answer:

D. Their ability to replicate very fast and natural mutations combine to allow them to evolve rapidly

Explanation:

They develop mutations in their DNA that can be resistant to the drugs given.

M. magneticum can only survive in low-oxygen environments, which are typically found near the bottom of bodies of water.

a. True
b. False

Answers

b good luck on future quizzes !!

What is
FOOD & NUTRITON 1​

Answers

Answer:

1 How food keeps us healthy. Food is needed for energy and nutrients to exist, it provides energy for work, and warmth for the body. Everybody also needs food to build, maintain and repair their body. It is also required for control of body processes and for protection against disease and infections.

Answer:

Any nutritious substance that people or animals eat or drink or that plants absorb in order to maintain life and growth.

Nutrition is the biochemical and physiological process by which an organism uses food to support its life.

is a pollen grain a cell

Answers

Long story short YES

ronmental Science
17.1.2 Quiz: Characteristics of Populations
Question 1 of 10
What do members of a population have in common? Select all that apply.
A. They live in the same area.
OB. They have the same density.
C. They are the same species.
D. They are the same size.
O E. They live at the same time.

Answers

Answer:

A,C,D

Explanation:

A- Makes Sense because if you were a member of a population then the other members live in the same area as you.

B- Doesnt make sense because even though you live in the same population as someone, it doesnt mean you'd have the same density.

C- Makes sense because the definition of population is "a group of individuals of the same species living and interbreeding within a given area.

D- Doesnt make sense everyone is different size.

E- Makes sense in order to be considered a member of a population you have to be living

Cells dispose of large waste molecules through a process called

osmosis.
diffusion.
exocytosis.
endocytosis.

Answers

Cells dispose of large waste molecules through a process called exocytosis.

Exocytosis is the process through which cells can eliminate wastes, which might be useless or toxic, to the extracellular space.

-------------------------------

The endocytosis and exocytosis process refers to molecules transport mediated by vesicles.

Exocytosis occurs from and into the cell and needs energy to happen because it is active transport.Exocytosis involves vesicles or vacuoles. Vesicles or vacuoles can carry substances destined for exportation or cellular wastes. Wastes may be large molecules that result useless for the cells or that might be toxic. During the exocytosis process

         1) excretion compounds of varying nature accumulate within the  

             vesicle

         2) The vesicle migrates toward the cellular surface.

         3) Once in the surface, the vesicle's membrane fuses with the cellular

             membrane, and its content is expelled from the cell to the  

             extracellular space.

         4) Vesicle membrane remains fused to the cell membrane until it is

              reused during endocytosis events.

------------------------------

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Define Siamese twins

Answers

Answer:

Conjoined twins are two babies who are born physically connected to each other. Conjoined twins develop when an early embryo only partially separates to form two individuals. Although two fetuses will develop from this embryo, they will remain physically connected — most often at the chest, abdomen or pelvis.

Partes del sistema linfatico

Answers

Answer:

Explanation:

Le parti principali del tessuto linfatico sono il midollo osseo, la milza, la ghiandola del timo, i linfonodi, i linfonodi e le tonsille.

Explain why succession allows an ecosystem to recover after a primary disturbance.

Answers

Answer:

succession allows an ecosystem to recover from a primary disturbance because theorganisms that moves in helps to rebuild the soil that may have been affected.

The MN blood group in humans is under the control of a pair of co-dominant alleles, M (we will call the frequency of M, p) and N (we will call the frequency of N, q). In a group of 556 individuals, the following numbers of individuals are found for each of the genotypes:
167 MM
280 MN
109 NN
a) What is the frequency of each allele? p= q=
b) What is the value of the Chi-square statistic test to find if in this particular case the genotypic frequencies conform to the Hardy-Weinberg distribution.
Chi square value =
c) What is the probability associated with you chi square statistic calculated above? Please complete the blanks below with the corresponding symbol, < OR > than the critical value, your conclusion with respect to the null hypothesis of Hardy Weinberg equilibrium, Retain or Reject.
P value __ than 0.05
Conclusion ___ the null hypothesis of HW equilibrium

Answers

Answer:

a) f(M) = p = 0.55

   f(N) = q = 0.45

b) X² = 12.12

c)  P₀.₀₅ = 5.991

d) P₀.₀₅ < X²

e) Reject the null hypothesis of HW equilibrium

Explanation:

Due to technical problems, you will find the complete explanation in the attached files


The_____states that the distribution of the sample means tend to be
approximately normal as sample sizes increase.
A. Intermediate Value Theorem
B. Sample Values Theorem
C. Central Limit Theorem
D. Approximate Values Theorem

Answers

Answer: C. central limit theorem

Explanation:

describe any four factors affecting the distribution and diversity of crustaceans in marine ecosystems

Answers

Answer:

En marina es: sobre pesca, cambio climático, especies invasoras, acuicultura. En terrestres es: inundaciones, calentamiento global, gases de invernadero, radiación reflejada.Explanation:ponme corona

The catabolic pathways that degrade fatty acids do not generate ATP directly, but produce NADH and acetyl-CoA.

a. True
b. False

Answers

Answer:

b.False

Explanation:

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