What molecule makes the trunk of a tree sturdy?
O A. Fructose
O B. Disaccharide
C. Cellulose
O D. Glucose
Answer:
C. Cellulose
Explanation:
What helps mitochondria make proteins by itself? 1. Presence of membrane 2. Presence of ATP 3. Presence of Ribosomes 4. All of the above
Answer:
presence of ribosomes because they are the main sites of production of proteins
Answer:
3. Presence of ribosomes
Explanation:
Mitochondria has its own ribosomes which help in the synthesis of protiens
Which type of organism most likely evolves first
Answer:
Prokaryotes.
Explanation:
They are single celled organism adaptive of living in earth older environment.
A wet mount slide from a sample of Elodea leaf cells and a slide from a sample of red blood cells were initially examined using a light microscope. The remaining
portions of the two cells samples were then placed into a 20% sucrose solution. After 30 minutes, the cells were again examined using a light microscope. Which
statements best describes their appearance?
Your answer:
A. The leaf cells had undergone plasmolysis while the red blood cells had shriveled.
B. The leaf cells were swolle and turgid while the red blood cells remain unchanged.
C. Both the leaf cells and the rat blood cells had swollen and burst.
Answer:
B
Explanation:
The leaf cells were swolle and turgid while the red blood cells remain unchanged.
What is the difference between a scientific theory and a scientific law?
A. A law is a description of natural events. A theory attempts to
explain the causes of natural events.
B. A law is an educated guess. A theory is a fact.
C. A theory is an educated guess. A law is a fact.
D. A theory is a description of natural events. A law attempts to explain the causes of natural events.
How would pH levels decrease due to production of fatty acids
Answer:
Fatty acid synthesis is the creation of fatty acids from acetyl-CoA and NADPH through the action of enzymes called fatty acid synthases. This process takes place in the cytoplasm of the cell. Most of the acetyl-CoA which is converted into fatty acids is derived from carbohydrates via the glycolytic pathway.
explain what part of the day condensation usually occurs and why
Answer:
Condensation is the formation of liquid drops of water from water vapor. ... Condensation in the atmosphere usually occurs as a parcel of rising air expands and cools to the point where some of the water vapor molecules clump together faster than they are torn apart from their thermal energy
Explanation:
Why do you think there is a ring with a dark gap within the body of the wood?
Please Help Next to Mark’s house, there is a large meadow with small plants and no trees. Behind the meadow is a dense forest with large trees. On a hot summer day, Mark recorded the temperatures in the meadow and in the middle of the forest. Based on the results of your experiment, which place was cooler and why?
Answer:
The meadow with small plants and no tree will be hotter than the dense forest with large trees.
Explanation:
The large trees will serve as shade from direct sunlight
What are the basic units of protein macromolecules?
The picture shows a contractile vacuole of a unicellular freshwater organism. The contractile vacuole regulates the flow of water into and out of the cell in an aquatic environement. What condtions cause the contracile vacuole to fill with water? Your answer: The concentration of water is greater outside the cell than inside the cell. The concentration of water inside the cell is the same as the concentration outside the cell. The temperature of water in the vacuole is higher than the temperature of its environment.
Answer:
The concentration of water is greater outside the cell than inside the cell.
Explanation:
In living cells, water moves by Osmosis across the cell membrane, which acts as the semi-permeable membrane. Osmosis is the movement of water molecules from a region of high water concentration (low solute concentration) to a region of low water concentration (high solute concentration).
The contractile vacuole of this freshwater organism helps regulate water intake and exit by storing excess water. According to osmotic flow, water will flow into the organism via its cell membrane (semi-permeable membrane) because the concentration of water outside the cell is high than inside the cell, hence, this causes an osmotic gradient causing water to flow into the cell. The water that flows into the cell is stored in the Contractile vacuole.
15. Unlike identical twins, fraternal twins
A. are produced from two identical embryos.
B. result from the same fertilized egg.
C. are always the same sex.
D. result from two eggs fertilized by different sperm.
Mark for review (Will be highlighted on the review page
DNA and RNA are frequently
Answer:
A
Explanation:
I know because I actually just learned this yesterday lol. DNA gets transcribed then tRNA translates the mRNA to know what amino acids to make.
hope it helps and I can explain more if you need.
Which examples describe biotic factors interacting with the environment?
Answer:
Examples of biotic components:
animals, plants, bacteria etc...
Is this the answer you want?
Answer:
D: Butterflies resting on the flower of a plant
Explanation:
I hope this helps! i took the test if y'all needed to know
Questionnaire 15 of 20 :
Select the best answer for the question.
15. What term refers to the point below the surface where an earthquake begins?
O A. Seismic zone
O B. Hypocenter
O C. Epicenter
O D. Seismogenic zone
Answer:
In my opinion I think its B. Hypocenter
Sorry if wrong
Explain the relationships between five members of a food web. Include at least one producer and one high-level consumer
Answer:
the sun shines on earth, which through photosynthesis in a humble blade of grass turns into food and energy for the grass. now a small mouse hops along, stomach growling. it eats our blade of grass now itself getting energy. the naive, full mouse hops through the field before it squeaks in horror. a snake slinks towards it. the mouse is too slow. and the mouse breathes his last breath. the snake swallows it whole. stomach content now digesting its new energy sleeps. before it has the chance to react a hawk snatches it up in her claws. killing it she eats. this snake is poisonous, the next time our hawk flies, she stumbles, then falls. vanquished by poison her lifeless body lies in the dirt. her nutrients go into the soil, thanks to decomposers like worms. her nutrients help new grass blades grow, and the cycle continues.
I hope this helps u!
Pls give brainliest(had 40 down to 2 for no reason and worked long) and a thx ;)
I will thank u via profile thanks and comments
As in mitosis, in Meiosis the chromosomes move toward opposite poles of a cell in____.
Answer
The chromosones move toward opposite poles of a cell in Anaphase
Mimicry is
A. when an organisms 'looks' like another organism
B. when an organism blends into its surrounding
C. when an organism changes tropic levels to 'look'
like another organism
Answer:
C. when an origanism changes tropic levels to look like another organism
The example of a whale beached by the tides illustrates that
1. tides occur twice a day
2. tides impact marine life
3. tides are a leading killer of whales
4. tides are usually deadly and destructive
Answer:
I think its B
Explanation:
Which could be its function?
A. Directing the growth of cells
B. Insulating the body
C. Forming muscle fiber
D. Storing energy
Answer: Forming Muscle Fiber
Explanation:
What is shown in the diagram?
an electromagnet
a generator
a motor
a turbine
Answer:
an electromagnet
Explanation:
I need to know it ASAP thanks
Review the image shown right. Then, use the
drop-down menus to complete the following
sentence.
In transcription within the nucleus, RNA is made
through
pairing with the
antisense strand in
DONE
Answer:
The correct answer is - Base pairing rule and DNA.
Explanation:
According to the base pair rule during transcription, along with antisense strand DNA, the RNA was made and the bases of the purines and pyrimidines strands bind together, Uracil paired with the A-strand and the C strand being paired to G-strand in transcription within the nucleus.
Thus, the correct answer in the first line is "Base-pairing rule" while in the second line is "DNA".
Answer: The answers are In transcription within the nucleus, RNA is made through
✔ base
pairing with theantisense strand in
✔ DNA
Explanation: These are the answers because they just are!!! Also screenshot fro proof
What is healthcare ?
Answer:
The organized provision of medical care to individuals or a community.
Which statements regarding hypotheses are true?
Check all that apply.
Answer:
Hypotheses are based on observations.
Hypotheses are formed from testable questions.
Hypotheses are tested with controlled experiments.
What method is used when you try several different solutions to see what
works?
function of a mitochondion
Answer:
mitochondria are to produce the energy currency of the cell, through respiration, and to regulate cellular metabolism.
Explanation:
the role of mitochondrion is to generate the energy commodity of the cell, by respiration, and control of cell metabolism.Mitochondrial is the ATP synthesis site for the cell. The amount of mitochondria present in a cell is also a strong predictor of the cell 's rate of metabolic activity; cells that are very metabolically active, such as hepatocytes, may have more mitochondria.
hope this helped!
In the triglyceride molecule shown below what are the three molecules
attached to the glycerol molecule?
A Glycolic acids
B. Fatty acids
C. Nucleic acids
Amino acios
Answer:B. Fatty acids
Explanation:
Which of the following is an example of a chemical change?
A. Breaking wood
B. Melting ice
C. Bending metal
D. Baking bread
Answer:
D. Breaking bread is an example of chemical reaction.
Animals cells have which of the following characteristics? Select all that apply
Answer:
Animal cells have the following characteristics: no cell wall, no large vacuole, only small ones, cleavage furrows.
Explanation:
hope this helps
