What three functions does the cell membrane have?
Answer:
Biological membranes have three primary functions: (1) they keep toxic substances out of the cell; (2) they contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, and metabolic products, that mediate cellular and extracellular activities to pass between organelles and between the cell.
Which of the following characteristics does an animal cell have that a plant cell does not have?
a cell wall
a vacuole
lysosomes
chloroplasts
Answer:
Plants cells do not have lysosomes
PLS ANSWER QUICK! BRANLIEST!
Environmentalists claim that climate change could lead to major biological change on Earth. Which of the following statements supports the biological predictions related to climate change?
A Sea levels will fall, causing migration of 50% of the world's human population.
B Carbon dioxide levels and temperature changes are direct related in the studies.
C Studies show that atmospheric carbon dioxide has increased over the past 150 years.
D The distribution of many organisms has already shifted as a result of warming.
Answer:
your answer might be B
Explanation:
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what is the difference between weathering and erosion
I need a short answer asap
Which cel structure is represented by B
Answer:
Estructuras subcelulares: Son los organelos celulares y las biomoléculas incluidas en cada uno de ellos , porque las sintetizan o las utilizan en la función que separadamente o en conjunto realizan. Ejemplos: ribosomas, mitocondrias y más. Una de las características de la materia viva es su capacidad de organizarse.
Answer:
Ribosomes
Explanation:
Ribosomes are the cel structures represented by B.
Match the following terms pertaining to Earth's early formation with the correct description.
The process on the accumulation of ice and rock to form the early earth is called as accretion.
What is accumulation?Accumulation is defined as the ongoing accumulation of foreign compounds inside an organism, such as harmful chemicals or insecticides. Accumulation in the context of trading refers to the size of a position within an asset that increases as a result of multiple transactions. Accumulation also denotes the incorporation of positions across the board in a portfolio. It can also be used to describe a rise in buying activity inside an asset.
Differentiation is defined as the procedures that turn immature cells into mature ones with particular activities. Iron catastrophe is defined as a huge geological event that is thought to have occurred early in Earth's history and during which heavy metals like iron and nickel gathered in the core for a geologically brief time. Earth's layer include Crust, mantle, core, lithosphere, asthenosphere, mesosphere, outer core, inner core.
Thus, the correct match of the following is 1, 2, 3 and 4 is C, B, D and A.
To learn more about accumulation, refer to the link below:
https://brainly.com/question/15907765
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Describe the relationship between the wavelength and frequency of electromagnetic waves
Answer:
Frequency is inversely proportional to wavelength.
Explanation:
frequency is the number of oscillations in a unit of time.
Wavelength is the length between one oscillation and the next oscillation.
take two springs and 4 pins. (springs should have loops or hooks at terminals to attach to pins.)
Now get two pins and pin them at a certain distance apart.
take the first spring and attach its two terminals to the pins.
Repeat the above procedure, but double (increase the distance x2) the distance between two pins.
Now you have to measure how many coils are there within 5cm of the two springs.
you'll observe that the second spring has half the coils of the first spring within 5cm.
In here no. of coils is the frequency
5cm length is time.
distance between coil is the wavelength.
how would you revise for a biology test?
any tips?
Create a Revision Guide and Summarise. ...
Spaced Repetition. ...
Make Difficult Topics Fun. ...
Create Accompanying Visuals. ...
Practice Past Papers. ...
Leverage Study Groups. ...
Create and Use Flashcards. ...
Revision and Memory Games.
A chemical reaction in which molecules combine by removing water
O Hydrolysis
O Water-removal connection
O Dehydration reaction
Answer:
Hydrolysis
Explanation:
Also known as condensation, it is a chemical reaction involving the joining together of two molecules with the removal of a molecule of water. Molecules which are formed in this way can usually be broken down by the addition of water molecules, a process known as “hydrolysis.” A chemical reaction involving the removal of a water molecule.
Answer:
The first one.... Hydrolysis.
Explanation:
Certain molecules can be joined by the removal of water in a process called:
hydration... hydrolysis...neutralization... and condensation.
Write a short poem about planets.
Please do not copy it online.
Thanks!!
Answer:
plantents are beautiful in this world and plantents are not their we can't live with
Einsteins Theory of Relativity can be
supported with evidence of light doing
what around the sun?
bending.
Answer:
Einsteins Theory of Relativity can be
supported with evidence of light doing
what around the sun?
In 1919 observation of a solar eclipse confirmed Einstein's prediction that light is bent in the presence of mass. This experimental support for his general theory of relativity garnered him instant worldwide acclaim. ... This has been measured directly and also through the gravitational redshift of light.
Answer:
The Earth moves around the Sun, due to the Sun's gravity. ... According to Newton's theory, the Earth should know immediately that the Sun had disappeared. But Einstein said that couldn't be right. Because, according to him, nothing can travel faster than the speed of light — not even the effects of gravity.
Explanation:
•Albert Einstein, in his theory of special relativity, determined that the laws of physics are the same•for all non-accelerating observers, and he showed that the speed of light within a vacuum is the same no matter the speed at which an observer travels, according to Wired.
•Essentially, Einstein thought space and time were intertwined in an infinite “fabric,” like an outstretched blanket. A massive object such as the Sun bends
HELP ME ASAP BRAINLEST
what amoeba cells do and where are they?
Answer:
Amoeba cells catch food and move about extending fingerlike projections of a colorless material called protoplasm and are found in decaying bottom vegetation of fresh water streams and ponds
What aspect of a muscle cell allows
movement in the body?
Answer:
Skeletal muscle is attached to bones and its contraction makes possible locomotion, facial expressions, posture, and other voluntary movements of the body. Forty percent of your body mass is made up of skeletal muscle.
Explanation:
where does the most photosynthesis on earth occur
Answer:
Chloroplasts in Green Plant Cells
The most important part of photosynthesis occurs in the chloroplasts. These small photosynthesis factories buried within the leaves house chlorophyll, a green pigment secreted in the chloroplast membranes.
Explanation:
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I need a big help please!
Answer:
1. weight
2. mass
3. mass
4. weight
5. weight
6. weight
7. weight
8. mass
9. mass
10. mass
¿A qué organismos pueden causar enfermedades los hongos?
how long can it take for the body to process 0.6 ounces of alcohol
It takes about an hour
motor proteins are responsible for moving vesicles and organelles within the cell. motor proteins move along protein "tracks." in the example shown in the visualizing figure, what are those tracks made of?
Answer:
actin
Explanation:
Somebody help me please
Answer:
they lower the activation energy of reactions
Which substances can pass directly through the plasma membrane?
Answer:
Water and other nutrients
Explanation:
the individual features of all organisms are the result of
Answer:
Explanation:
Genetics and the environment
what organs make up the integumentary system
Why are different types of cancers named based on where in the body they originate (breast cancer, skin cancer, bone cancer, etc.)? Why does it matter from which organ or tissue type the cancer developed?
Answer:
Cancer is caused by abnormal cell division. However, a skin cell is different from a bone cell. Because of that, the cancers that can occur behave differently.
Explanation:
What are the components of a lipid?
a. Lipids are made of made of carbons bound to hydrogen and oxygen groups; these often form high-energy ring structures
b. Lipids are made of long chains of carbons bound to hydrogens, called hydrocarbons
c. Lipids are made of carbons bound to hydrogen, oxygen, nitrogen, and phosphorous groups; these are often bound into single and double-ring structures
d. Lipids are made of carbons bound to hydrogen, oxygen, and nitrogen groups; the unequal sharing of electrons around the oxygen (carboxyl) and nitrogen (amino) groups cause the molecule to fold up on itself and form different shapes that affect the function of the molecule in the living organism
Answer: D
Explanation:
Lipids are made of carbons bound to hydrogen, oxygen, and nitrogen groups; the unequal sharing of electrons around the oxygen (carboxyl) and nitrogen (amino) groups cause the molecule to fold up on itself and form different shapes that affect the function of the molecule in the living organism.
Which type of carbohydrate would provide an immediate source of energy
Answer:
glucose carbohydrates
Explanation:
As an immediate source of energy, glucose is broken down during the process of cellular respiration, which produces ATP, the energy currency of the cell. Glucose or blood sugar, is the main source of energy for your body's cells, tissues, and organs.
(WILL MARK BRAINLIEST) A college administrator wants to know whether an orientation workshop will increase success rates for first-time college students. Which of these should he manipulate?
a) the number of first-time college students that are admitted
b) whether students receive an orientation workshop or not
c) the assessments that are used to determine success rate
d) when students are required to take placement exams
e) all of the above
Answer:
E) All of the above
Explanation:
The reason I say that is because he is trying to increase the success rates of first-time college students. If you admit a certain amount of first-time students the rates will go up. B if he does that he will be determining which ones get admitted and tested.
A plasmid may a. replicate independently of the chromosome b. be transferred cell-to-cell during conjugation c. be integrated into the chromosome d. replicate independently of the chromosome, integrate into the chromosome, or be transferred cell-to-cell during conjugation
HELP PLEASEEE
Which statement BEST describes the proper procedure for patient identification?
A: Gather patient data and compare it to their history.
B: Approach the patient and ask them their name.
C: Check the information in their chart or orders against their wrist band.
D: Have the patient fill out a questionnaire so the information can be cross checked.
Answer:
A
Explanation:
When you gather the patients data it will help to know its inherited or what
Please heeeeeeeeeeeeelp
Answer:
i think the one u picked was correct
Explanation:
identify three things that you think would be most effective in reducing the population growth rate in Niger, and explain how each thing will decrease population growth rates.