Discussion of the observations of an experiment of epidermal cell of onion bulb

Answers

Answer 1
Solution
Cut open an onion.
Use forceps to peel a thin layer of epidermis from the inside.
Lay the layer of epidermis on a microscope slide.
Add a drop of iodine solution to the layer.
Carefully place a coverslip over the layer.
Observe it under a microscope to see onion cells.

Related Questions

When do populations increase?

Answers

Answer:

c

Explanation:

i have seen this before and i got it correct i dont know if it works with you?

hey there!
the correct answer would be C when birth rights are higher then death rights.
this is correct because when there are more people being born and less dying there are more overall people.
hope this helped!

A mRNA codon is AGC. The tRNA anticodon will be

Answers

YES YES YES YES YES YES YES YES I don’t get what u are saying but points for me!
A mRNA codon is AGC. The tRNA anticodon will be UCG.

Which explanation describes why males are more likely to exhibit sex-linked disorders than females?

Answers

A male with a mutation in a gene on the X chromosome is typically affected with the condition. Because females have two copies of the X chromosome and males have only one X chromosome, X-linked recessive diseases are more common among males than females.

Match each description with the correct ecosystem.

This ecosystem experiences sudden changes in water level and temperature.

This ecosystem contains a mix of fresh water and salt water.

This ecosystem supports many plants, which provide food for schools of fish.

Answers

Answer:

1 - B or intertidal zone

2 - A or estuary

3 - C or neritic zone

Explanation:

These are the correct answers, I took the test on edge, have a great day!!

Answer: B, A, C,

Explanation:

I did it and got it right

HELP NEED THIS BY TODAY!
What did Mendel study that lead him to his discovery

Answers

Answer:

A monk, Mendel discovered the basic principles of heredity through experiments in his monastery's garden. His experiments showed that the inheritance of certain traits in pea plants follows particular patterns, subsequently becoming the foundation of modern genetics and leading to the study of heredity.

Explanation:

Answer:

Mendel studied the genetics of pea plants.

Explanation:

Mendel looked at the pea plants in his monastery garden to determine genetics. He found that some plants had white flowers, while some did not, and he used that discovery to determine the genetics of the plants.

Plant life in wetlands is not
different from plant life In other areas.
True
False

Answers

False

Explanation: Plant life in wetlands are moist but in different plant life are not that much moist.

PLS HELP IM TIMED!!
Fish eggs that are fertilized externally are typically clustered and covered in a thick, jelly-like substance.
What is most likely the function of this substance?
a) to protect the eggs and keep them consistently warm inside the parent's body
b) to protect the eggs and keep them safe from any harmful environmental conditions
c) to ensure that only a few of the eggs are fertilized by sperm since external fertilization is uncommon and risky
d) to ensure that only some of the eggs are fertilized by sperm so others can be fertilized internally

Answers

Answer:

Don't get me wrong but I think it's B

Explanation:

Answer:

The correct answer is B: to protect the eggs and keep them consistently warm inside the parent's body.      It is correct on edge

Explanation:

Hope this helps and good luck:)

Three things can happen at the boundaries between earths plates. If one plate moves underneath another it’s called a

Answers

Answer:

I believe it is called SUBDUCTION.

Earth's plates are called TECTONIC PLATES BTW

A student tested food samples for the presence of various nutrients and recorded her findings in
the data table below. A"+" denotes that the nutrient was present in the sample. Adenotes that
the nutrient was absent. Use the student's data to answer the next 3 questions.
Nutrient
Glucose
Starch
Protein
Lipid
Sample 1
Sample 2
Sample 3
Sample 4
Based on the student's data, which food sample(s) would contain amino acids?
O sample 3
O Samples 1 and 4
O sample 2
O samples 2 and 3

Answers

Answer:

4mhky4stjs reste w test

Explanation:

hjentekrwjetbwtfhwtjt3j3tj

What does an ecopsychologist study? a. the mental health of environmental scientists b. the relationship between animals' interactions and their mental health c. the relationship between animals' behavior and the environment d. the relationship between a person's mental health and the environment

Answers

Answer:

The correct answer is d. the relationship between a person's mental health and the environment.

Explanation:

Ecopsychology is aimed at identifying the way in which the emotional aspects of human beings are influenced by the environment, that is, ecopsychology collects multiple experiences that connect human development with environmental awareness. Ecopsychologists are oriented to the search for the well-being of the human being through its connection with natural processes through the understanding of the complex interrelationships between people and the environment.

Answer:

The correct answer is d. the relationship between a person's mental health and the environment.

Explanation:

Ecopsychology is aimed at identifying the way in which the emotional aspects of human beings are influenced by the environment, that is, ecopsychology collects multiple experiences that connect human development with environmental awareness. Ecopsychologists are oriented to the search for the well-being of the human being through its connection with natural processes through the understanding of the complex interrelationships between people and the environment.

What is the structure of a virus?

Answers

Answer:

The simplest virions consist of two basic components: nucleic acid (single- or double-stranded RNA or DNA) and a protein coat, the capsid, which functions as a shell to protect the viral genome from nucleases and which during infection attaches the virion to specific receptors exposed on the prospective host cell.

A virion consists of a nucleic acid core, an outer protein coating or capsid, and sometimes an outer envelope made of protein and phospholipid membranes derived from the host cell. The capsid is made up of protein subunits called capsomeres. Viruses may also contain additional proteins, such as enzymes

primates evolved during what era ​

Answers

The beginning of the Eocene Epoch Era.

Procedure
1
2.
3
Place a strawberry in a zip-closure
bag and remove most of the air
before you seal the bag.
Add 2 tablespoons of the DNA
extracting solution
Mash the strawberry through
the bag in your hand. Do not hit
against the table as this might
damage the DNA
4
5
6
Continue mixing and mashing the
bag in your hand.
Place a piece of gauze over the
opening of the cup, securing it
with a rubber band.
Carefully pour the strawberry
mixture into the cup making sure
to catch the solids with the gauze.
7
8
9
27
Take a dropper or spoonful of the
liquid in the cup and place in the
test tube.
Add a dropper for spoonful of the
alcohol to the test tube. Take care
not to tilt or tip the test tube; do
not mix the two liquids.
Observe the line between the
strawberry mixture and the
alcohol.
Explain each step of the process,and the science behind why those steps needs to be completed. Please help I'll give you brainlest

Answers

dude i’m sorry, but you should just do the lab it’ll take you like 10 minutes

What happens during S phase?

Answers

Answer:

DNA is replicated

Anyone know what is the answer pls ?

Answers

Answer:

1. Viruses 2. ? 3. Viruses 4. ? 5. Immunity 6. Vaccine

Explanation:

1. What were the conditions on the planet when life began?

Answers

Answer: The early Earth had no ozone layer and was probably very hot. The early Earth also had no free oxygen. Without an oxygen atmosphere very few things could live on Earth. Anaerobic bacteria were probably the first living things on Earth.

Help!! Please!! I'll name you brainliest!!

Answers

Explanation:

the same as the charge on the ion.+1 +2-2

5. -1

plz mark my answer as brainlist plzzzz you get it helpful ☺️.

Hope this will be helpful to you.

how are viroids different from viruses​

Answers

Answer:

We are all familiar with the basics of viruses: These particles infect living cells and wreak havoc throughout the body. But viruses aren’t the only villains around causing chaos in living things. Other infectious agents called viroids and prions — which are also tiny but powerful — can take down both plant life and entire animals.

Viroids are free RNA molecules of low molecular weight without any protein coat, while viruses can have either RNA or DNA molecules encapsulated in a protein coat. Viroids are smaller in size than viruses.

Viroids not made of cells.

Viroids don’t transform energy.

Viroids can’t reproduce on their own.

PLEASE HELP QUICKLY

Match each of the following to the correct organ system.

Lungs

Heart

Veins

Arteries

Stomach

Large intestine

Trachea

Small intestine

Muscles

Bones

Liver

Pancreas

Gall bladder

Kidney

Bladder

Choices are...


A. Skeletal System

B. Excretory System

C. Digestive System

D. Circulatory System

E. Muscular System

F. Respiratory System

Answers

Explanation:

1. stomach - Digestive

2. Brain - Nervous

3. Heart - Cardiovascular

4. kidneys - excretory

5. bone marrow - lymph

6. pituitary gland - endocrine

7. xylem- vascular tissue

8. bones - skeletal

9. Fallopian tubes - reproductive

hope this helps liine some up together i dont give whole answers just try to help ppl out, ill see what i can do thogh, dont quite undderstand can thee be more than one to go with the numbered ones?

Why would the atomic number be better to identify an element than the atomic mass?

Answers

Answer:

because the atomic number tells you how many protons and neutrons there are

Explanation:

How do you think about the invention of the microscope? Influenced the cell theory?
And what are the components of the cell theory?

Answers

Answer:

See the answer below

Explanation:

The invention of the microscope paved way for the development of the cell theory because, without it, the cell and all the organelles of the cell would not have been discovered and or studied in great detail. It was through the use of  a microscope that Robert Hooke was able to observe and name the cell and it was through the same microscope that the fine details of the cell were able to be studied by other scientists, culminating in the formulation of the cell theory.

The cell theory states that all living organisms are made up of cells, the cell is the basic unit of all life, and cells can only arise from already existing cells (via cell division). The components of the cell theory, therefore, are:

Living organisms are made up of cells.The cell represents the basic unit of life.Cells can only arise from preexsiting cells.

What cell structures are made in G1?

Answers

Answer:

Organelles

Explanation:

what are the advantages of anaerobic respiration and aerobic respiration?

Answers


Aerobic and anaerobic respiration each have advantages under specific conditions. Aerobic respiration produces far more ATP, but risks exposure to oxygen toxicity. Anaerobic respiration is less energy-efficient, but allows survival in habitats which lack oxygen

seasons work help needed please

Answers

Answer:

July

Explanation:

it is typically the warmest month of the year globally because the Northern hemisphere has more land masses than the southern hemisphere

The vocal cords stretch across the opening of the larynx. True or false??

Answers

Answer:

True

Explanation:

Vocal cords are bands of smooth muscle tissue located in the larynx. When air passes through, the vocal cords vibrate.

Answer: True

Explanation:

The vocal folds, also known popularly as vocal cords, are composed of twin infoldings of mucous membrane stretched horizontally across the larynx. They vibrate, modulating the flow of air being expelled from the lungs during phonation.

Explain the mechanism of ventilation in human lungs (you should talk about the diaphragm, abdominal muscles and rib cage and intercostal muscles)

Answers

Answer: When the diaphragm contracts, it moves inferiorly toward the abdominal cavity, creating a larger thoracic cavity and more space for the lungs. Contraction of the external intercostal muscles moves the ribs upward and outward, causing the rib cage to expand, which increases the volume of the thoracic cavity.

The movement of diaphragm and ribs govern the mechanism of ventilation in human lungs.

The ventilation in human lungs or pulmonary ventilation is defined as the process of intake of air during inhalation, and expiration as the release out of air. It is also termed as breathing.

What is the mechanism of pulmonary ventilation?

The lungs are present in the thoracic cavity, with the diaphragm below the lungs separating the thoracic cavity from the abdominal cavity. The rib cage is present outside lungs and prevent them.

Inhalation process in pulmonary ventilation

The inhalation is the process of taking in air. The increase in the volume of lungs results in the increased movement of diaphragm to the abdominal cavity.

The intercostal muscles move upwards and the rib cage move outwards. Thus, the air is inhaled in the system.

Exhalation process in pulmonary ventilation

The exhalation of air is performed antagonist to the inhalation. The relaxation of diaphragm and the movement of rib cage results in the decreased volume of the lungs, and the air is expelled.

Thus, the movement of diaphragm and ribs govern the mechanism of ventilation in human lungs.

Learn more about pulmonary ventilation, here:

https://brainly.com/question/1933493

Please help me out!

Diploid is to Body Cell as Haploid is to?
-Sex Cells
-Zygote
-Chromosome
-Sex Chromosome

Answers

i believe it’s sex cells


True or False.
A group of the same species of living things in an area is a population

Answers

Answer:

True.

Explanation:

A population is a group of organisms of the same species that live in the same area at the same time

Answer:

True!

Hope this helps.

What thing controls the functions of the different cells ? (Hint it is inside the nucleus)

Answers

Answer:

DNA

Explanation:

It's the genetic material that writes up who we are.

But if it's discussing an organelle, then it's the nucleus.

Have a great day!

Astrology, look at the screenshot

Answers

Answer:

the day would get shorter.

hope it helps.

Answer:

year would get longer

Explanation:

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