Answer:
The nervous system is a complex network of nervous tissue that carries electrical messages throughout the body. It includes the brain and spinal cord.
Which one is the correct equation for calculating density? *
Density - Mass / Volume
Density - Mass / Weight
Density - Volume / Mass
Density = Volume / Weight
Answer: Density=Mass/Volume
Explanation:
Answer:
[tex]density = \frac{mass}{volume} [/tex]
explanation :
here some examples
the mass of 20 cm³ of mercury is 272g. calculate it density of mercury.
[tex]density \\ = \frac{mass}{volume} = \frac{272g}{ {20cm}^{3} } [/tex]
answer :-
[tex] = 13.6g \: {cm}^{ - 3} [/tex]
These always contain DNA as the main genetic material
A. Virus
B. Both
C. Cells
Answer:
C
Explanation:
The one that always contain DNA as the main genetic material is cell nucleus. The correct option is C.
What is genetic material?The genetic material is the molecule that contains genes and is passed down from parents to children. It contains instructions for the growth and function of living organisms.
DNA and RNA are the two main types of genetic material. DNA is stored in the nucleus of eukaryotic cells, which have a nucleus and membrane-bound organelles, and is wrapped around round proteins called histones. DNA is ended up finding in the cytoplasm of prokaryotic cells.
A virus is composed of a core of genetic material surrounded by a protein-based protective coat called a capsid.
Viruses have either RNA or DNA as their genetic material, but neither. Single-stranded or double-stranded nucleic acid
Thus, the correct option is C.
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What macromolecules can be found in animal cells
and
What macromolecules can be found in plant cells
Answer:
ANIMALS: There are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids), and each is an important component of the cell and performs a wide array of functions. Combined, these molecules make up the majority of a cell's mass.
PLANTS: The three main classes of macromolecules found in plants are thus proteins, polysaccharides and nucleic acids. However, mixed polymers are also known. such as the glycoproteins, which contain both sugars and amino acids in covalent linkage.
The macromolecules found in animal cells are carbohydrates, proteins, lipids, nucleic acids, and water. Each of these macromolecules has specific functions in the body of kingdom Animalia.
What are Macromolecules?Macromolecules may be defined as a molecule that contains a very large number of atoms that are held together by specific bonds.
The macromolecules found in animal cells are polysaccharides, proteins, nucleic acids, water, and some types of mixed polymers.
All such macromolecules perform specific functions in the structure of kingdom Plantae and meet the need for metabolic activities.
Therefore, it is well described above.
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What is causing the surge in antibiotic resistance?
Answer:
Antibiotic resistance is accelerated by the misuse and overuse of antibiotics, as well as poor infection prevention and control. Steps can be taken at all levels of society to reduce the impact and limit the spread of resistance.
Explanation:
Answer:
people using antibiotics all the time
Explanation:
It is causing a super bacteria/virus.
What is the MAIN type of energy that is produced during cellular respiration?
Glucose
O ATP- Adenine Triphosphate
O Water
Light
Answer:
ATP- Adenine Triphosphate
Explanation
:In cellular respiration, energy is obtained by oxidizing an organic molecule, usually glucose, releasing energy. Part of that energy is stored as ATP (adenosine triphosphate) molecules, and part is released as heat.
Metalloids that can conduct electricity at high temperatures are
called
Metalloids that can conduct electricity at high temperatures are called semiconductors.
Semiconductors are a group of elements that have properties intermediate between those of metals and nonmetals. They have some characteristics of metals, such as being able to conduct electricity, but also some characteristics of nonmetals, such as having lower conductivity than metals.
At low temperatures, semiconductors have very low conductivity. However, at high temperatures, they can conduct electricity more effectively. This is because at higher temperatures, the thermal energy causes more electrons to break free from their atoms and become available for conduction.
One example of a semiconductor that can conduct electricity at high temperatures is silicon. Silicon is widely used in electronic devices, such as computer chips and solar cells, due to its ability to control and amplify electrical signals.
In summary, metalloids that can conduct electricity at high temperatures are known as semiconductors. They have properties intermediate between metals and nonmetals and can conduct electricity more effectively at high temperatures. Silicon is an example of a semiconductor commonly used in electronic devices.
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Students planted the same type and number of seeds in pots A and B. The amount and type of soil in both pots were also the same. Each plant received the same amount of water each week. Pot A was placed by a sunny window. Pot B was placed in a closet. After four weeks, the students observed the plants in both pots. The plants in pot A were green with thick stems. The plants in pot B were yellow with thin stems. Which statement best explains why the plants in pot A were different from the plants in pot B?
Answer:
C) Pot A received more sunlight than pot B.
Explanation:
Seeds or plants require some very important factor to grow that include carbon-dioxide, water and sunlight to undergo the process of photosynthesis.
Photosynthesis is the process by which plants make their own food by utilizing carbon-dioxide and water in the presence of sunlight and releases oxygen and energy.
In the given example, both the plants received equal amount of water and soil but the difference is in the position of the plant, in which plant A was placed by a sunny window from where plant have undergoes the photosynthesis process and grew with green with thick stems. while plant B was placed in a closet where no sunlight was present and the plant grew with yellow with thin stems.
Hence, the correct answer is "C) Pot A received more sunlight than pot B. "
Answer:
Answer: C) Pot A received more sunlight than pot B
Explanation:
Here's why: Pot A received more sunlight than pot B is correct. Plants need sunlight in order to make chlorophyll. Chlorophyll is the chemical that makes plants green.
Identify each of the following elements as a transition metal, noble gas, alkali metal, alkaline earth metal, or halogen.
1. Calcium - ______
2. Cesium - ______
3. Fluorine - ______
4. Chromium - ______
5. Oxygen - _______
6. Xenon - _______
7. lithium - ______
8. Neon - ______
Answer:
1. Calcium - alkaline earth metal
2. Cesium -alkali metal
3. Fluorine - halogen
4. Chromium - transition metal
5. Oxygen - nonmetal
6. Xenon - noble gas
7. lithium - alkali metals
8. Neon - noble gas
Explanation:
Examine the illustration.
Which structure in the cell contains the cell's genetic
information?
A
B
C
D
Answer:
b
Explanation:
b is the nucleus and it contains the dna
Answer:
B
Explanation: I took the test
Please Help, I Am Very Confused By This Question. Photos Are Linked!
Which statement is the most accurate description of the reaction shown in Figure 1?
A. It represents monomers linked by dehydration synthesis.
B. It represents a polypeptide chain that folds to form the tertiary structure.
C. It represents a polypeptide chain that is denatured into the primary structure. D. It represents a polypeptide chain that is broken down through a hydrolysis reaction.
Answer:
D
Explanation:
Adding water
List the four reasons why humans should protect ecosystems.
Answer:
Explanation:
Healthy ecosystems clean our water, purify our air, maintain our soil, regulate the climate, recycle nutrients and provide us with food. They provide raw materials and resources for medicines and other purposes.
2. Which particle's mass is similar to a proton's mass? ( A. an atom B. a nucleus C. a neutron D. an electron
Answer:-
Option C. a neutron
This stadium can hold 100,000, or 1x10, people. The
number of atoms in a grain of iron is about 1x 1016,
Would you need 1 x 10° or 1 x 10' stadiums to hold
the same number of people as the number of atoms in
a grain of iron? Explain your answer,
Answer:
1 x 10^13 stadiums will be needed in this scenario
Explanation:
We are told that
1 stadium holds = 1 × 10^5 people and
Number of iron atoms = 1 × 10^18 atoms
If the stadium carries an equivalent number of atoms as that of people.
We can infer that 1 stadium will carry 1 × 10^5 atoms.
The calculation to determine the number of stadiums would then be 1 × 10^18 divided by 10^5 atoms/stadium which was gotten by dividing the total number of atoms by the number of atoms per stadium.
Number of stadiums = Total number of atoms ÷ Number of atoms per stadium
= 1 × 10^18 atoms ÷ 1 × 10^5 atoms/stadium
= 1 × 10^13 Stadiums
This means that 1 × 10^18 atoms would occupy 1 × 10^13 stadiums
A type of asexual reproduction in which a prokaryotic cell replicates its DNA and divides in half, producing two identical daughter cells, is called
binary fission
conjugation
mitosis
transduction
Answer: binary fission, form of sexual reproduction in which paramecia and some prokaryotes exchange genetic information. I THINK this is right!
Answer:
The answer is binary fission.
Explanation:
Binary fission, asexual reproduction by a separation of the body into two new bodies. In the process of binary fission, an organism duplicates its genetic material, or deoxyribonucleic acid (DNA), and then divides into two parts (cytokinesis), with each new organism receiving one copy of DNA.
Hope that helps you!!
Fragments of metal or rock which enter the Earth's atmosphere from space are called:
Meteorites
Meteoroids
Meteors
meteoroid- hope this helped have a good day!!
Answer:
meteorites. i had the same one.
Explanation:
.
Define the term enzyme. Describe how enzymes influence metabolic reactions in the cell.
Evan is a substance produced by a living organism which acts as a chemical symbol en
Explanation:
enzyme is produce by a living organism which acts as a catalyst to bring about a specific biochemical chemistry
what does it mean if something undergoes a "mutation"?
What do all Organism Need? Select three Options
Nervous System
A Place To Live
Blood
Water
Food
Answer:
its blood water food
Explanation:
hope this help the person above me is correct
Answer:
your answers are
B. a place to live
D. water
E. food
Explanation:
What is the process by which heat moves through Earth’s mantle causing tectonic plates to move?
Question 9 options:
radiation
convection
plate faulting
continental drift
convection!
hope i could help ya
Which is NOT TRUE about upland landscape positions?
A May be subject to erosion
B Normally the oldest and most strongly developed
C Area of accumulation of soil material
D Includes summits and side-slopes
Answer:
A. May be subject to erosion
Explanation:
- Which of the following is NOT a molecule?
b. silver
a. water
c. carbon dioxide
d. sugar
it’s A
Answer:
sugar
Explanation:
sugar is a combination of different molecules
elements or compounds produced by a chemical reaction
Answer:
Are known as a reactant!
Explanation:
I need help please !!!
Answer:
i cant see
Explanation:
Matter is moved through the Earth by the interaction of Earth’s systems.
true or false.
Answer:
True.
Explanation:
Answer:
True
Explanation:
Edge 2020
1) State whether plants perform cellular respiration and explain why or why not.
2)Explain which cell would likely contain more mitochondria, a muscle cell or a skin cell. Use your knowledge of energy; mitochondria and their function to support your answer.
Answer:
1) plants use photosynthesis to produce glucose, but the use cellular respiration to release energy from glucose so yes they do perform cellular respiration
2) a muscle cell because mitochondria is the site of cellular respiration (releasing energy from glucose) and they need more energy for muscle contraction
6 times 7 ???????????????/
42 is the correct answer
Answer:
42 is the answer to 6 x 7
Explanation:
As water vapor cools, it ____, forming liquid water. (ANSWER FAST PLEASE!! I WILL GIVE A BRAINLIEST)
Answer:
it condenses!
Explanation:
hope this helps :)
Answer:
condenses
Explanation:
L 6.2.5 Quiz: Electromagnetic Waves
Question 3 of 5
Which two types of waves require matter in order to travel?
I A. Electromagnetic waves
B. Sound waves
C. Water waves
0 D. Light waves
What can be done to save forest? From class 8 science
Answer:
By planting more and more trees.By using less amount of papers it will help in saving trees.By controlling the forest fire.Hope it helps.