Answer:
microbes that left signs of their presence in rocks that are about 3.7 billion years old.
Explanation:
Answer:
After things cooled down, simple organic molecules began to form under the blanket of hydrogen. Those molecules, some scientists think, eventually linked up to form RNA, a molecular player long credited as essential for life's dawn. In short, the stage for life's emergence was set almost as soon as our planet was born
Dna strands are antiparallel. Which of the following statements defines antiparallel?.
Answer:
A 5 to 3 DNA stand is paired with the. 3 to 5 DNA stand.
Explanation:
Why is it necessary to take all of the prescribed doses of antibiotics even when we are already feeling better in advance of finishing them?
It's because taking them regularly until the prescription is complete helps ensure that all of the illness-causing bacteria are killed or prevented from multiplying. If you stop taking them early, the bacteria could still be alive and be spread from person to person. On top of that, the bacteria could develop to be antibiotic-resistant!
Describe the effect of adding trytophan to a culture of E. coli
Answer: High tryptophan: The tryptophan binds to the trp repressor and causes it to change shape, converting into its active (DNA-binding) form. The trp repressor with the bound tryptophan attaches to the operator, blocking RNA polymerase from binding to the promoter and preventing transcription of the operon.
Explanation:
give one disadvantage of having a large number of stomata per mm squared of leaf surface
Answer:
The downside to wide open stomata is increased water loss (transpiration). So stomata of cool-season turfgrasses have decisions to make. The plant needs to capture and store energy via photosynthesis, however, excessive water loss through transpiration can result in plant injury or death.
One disadvantage of having a large number of stomata per mm squared of leaf surface might be the excessive loss of water.
What are stomata?Stomata are specialized plant structures used to exchange gases such as oxygen and carbon dioxide.
The plant structures (stomata) are especially located on the leaves where photosynthesis mainly occurs.
In conclusion, one disadvantage of having a large number of stomata per mm squared of leaf surface might be the excessive loss of water.
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Which fossilization process leaves behind a dark film on a sedimentary rock?
Answer:
carbonization process leaves behind a dark film on a sedimentary rock.
why is anaerobic respiration useful?
Answer:
It is useful during exercise. When the body doesn't get enough oxygen during exercise, it relies on anaerobic respiration for an energy supply. Instead of carbon dioxide and water, however, anaerobic respiration produces lactic acid. Also, anaerobic respiration releases less energy than aerobic respiration but it does this more quickly.
Hope this helped.
- profparis
Answer:
many of our foods are produced by microorganisms respiring anaerobically.
Which classification category contains the greatest number of different types of organisms?.
Answer:
the classification kingdom
does anyone know the answer?
Question 1 is d
Question 2 is c
Question 3 is e
Question 4 is a
What general term is used to describe the introduction of foreign dna into a cell?.
Do animals have more traits in common as adults, or as developing embryos? Explain your
answer.
Answer:
they do have a lot of traits in common as adult.
Sources of energy and the two processes for land autotrophs (producers) and autotrophs in the deep ocean.
Autotrophs on land get their energy indirectly from the sun while those in the deep ocean get theirs from chemicals.
Photosynthesis and ChemosynthesisAutotrophs on land get their energy from carbohydrates synthesized via photosynthesis.
Photosynthesis is a process that converts radiant energy from the sun to chemical energy locked in carbohydrates. These carbohydrates are then broken down during respiration in order to release the locked energy.
Autotrophs in the deep ocean lack access to sunlight and thus, cannot utilize radiant energy from the sun. Instead, they make their carbohydrates by making use of energy from chemicals like hydrogen sulfide and methane in a process called chemosynthesis.
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Who enunciated the inverse square law of electrical attraction
A. James Watt
B. Robert Boyle
C. Joseph Priestly
D. James Maxwell
How does competition lead to resource partitioning?.
Answer:
It happens when competition drives natural selection because of animals niches overlap. This causes animals to die if they don't adapt. Those that adapt usually adapt with resource paritioning because it allows the type of species to live if they shared 2 types of certain parts of food.
The infection that puts women at risk for cervical cancer is.
(B.4A) The major difference between prokaryotes and eukaryotes is the presence or absence of the following:
cell membrane
membrane-bound organelles
cytoplasm
nucleic acids
The major difference between prokaryotes and eukaryotes is the presence or absence of membrane-bound organelles.
What are eukaryotic and prokaryotic cells?Eukaryotic cells are cells that possess a membrane-bound nucleus and organelles while prokaryotic cells do not contain a membrane-bound nucleus or organelles.
Examples of eukaryotic cells are;
Plant cellsAnimal cellsProtist cellsExamples of prokaryotic cells are;
Bacteria cellsThe membrane bound organelles that differentiates prokaryotes from eukaryotes are as follows:
ChloroplastMitochondriaEndoplasmic reticulumNucleusTherefore, the major difference between prokaryotes and eukaryotes is the presence or absence of membrane-bound organelles.
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Where are the sugars created during photosynthesis?
Answer: Glucose is the basic sugar produced during photosynthesis in stroma part of chloropast.
Explanation:
It occurs in a series of steps, which together constitute Calvin cycle. Glucose, the basic sugar is thus produced in stroma part of chloroplast as explained above.
Which is TRUE about skeletal
muscles?
A. They are not striated.
B. They are found in the heart.
C. They tire quickly.
D. They are involuntary.
Which phrases describe groundwater? select three options. feeds rivers provides habitats used for irrigation provides drinking water used for hydroelectric power
The phrases that describe groundwater are feeds rivers, used for irrigation, and provides drinking water.
What do you mean by Groundwater?Groundwater may be defined as water located beneath the surface of the earth. The water that we draws from wells are the example of groundwater.
Groundwater is considered as the biggest source of irrigation in almost whole earth's surface. It also very significantly used in drinking process.
Therefore, the phrases that describe groundwater are feeds rivers, used for irrigation, and provides drinking water.
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for animal cells a ____ starts devloping from the outside of the cell and will eventually spluit the cell into two
for animal cells a cleavage furrow starts devloping from the outside of the cell and will eventually spluit the cell into two
Why it was so unusual to
discover a feathered
species that lived during
the time of the dinosaurs?
Answer:
The preservation of soft tissues such as feathers and scales is extremely rare.
If a cell was observed under the microscope and found to have a rigid cell wall and be green in color that cell is most likely a
Plant cell
Animal cell
Algae cell
Bacterium cell
Answer:
A plant cell is your answer
Explanation:
prosses of elimination
animal cell - dose not have a cell wall
algae cell - its cell wall has more of a bubblelike appearance
bacterium cell - cell wall is not rigid, and color can vary it has more of a lose thread type look.
plant cell - has a green cell wall that is rigid <--- this is your answer
What is the function of the structure identified by the arrow?
O Mobility
O Protection
O Reproduction
O DNA transfer
Answer:
A. Mobility
Explanation:
how is an herbivore adapted to it's mode of feeding
When ATP is converted to ADP, ____
occurs.
Active Transport
phosphorylation
dephosphorylation
Answer:
phosphorylation
Explanation:
it is converted in a condensation reaction in which a phosphate molecule is added.
It is important to ask respectful questions about another's ideas and beliefs.
Question 2 options:
True
False
Answer:
I would say true
Explanation:
Answer:
True
Explanation:
Yes, it is very important to be respectful when asking questions about someone's ideas and beliefs. ALWAYS BE RESPECTFUL!!
hope this helps!! p.s. i really need brainliest :)
It’s for wood project. What does that little white dots are called?
Answer:
White spots are often the result of heat and water on the surface. These white spots are also called White Mold. You can wash off this mold with a tablespoon of baking soda, and a teaspoon of water.
FILL THE DIAGRAM!! DUE IN 10 MIN PLEASE HELP
Answer:
1 head
2 neck
3 I am not sure
A cell that phagocytizes an antigen and displays fragments of it on its surface for recognition by other cells of the immune system is a(n) ______ cell.
Antigen presenting cell is a cell phagocytizes an antigen and displays fragments of it on its surface for recognition by other cells of the immune system
What is Antigen presenting cells?An antigen-presenting cell refer to an immune cell that detects, engulfs, and pass a message to the adaptive immune response about an infection. When a pathogen is detected, the antigen presenting cells will engulf the pathogen and digest it to form many different fragments of the antigen.
Therefore, Antigen presenting cell is a cell phagocytizes an antigen and displays fragments of it on its surface for recognition by other cells of the immune system
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Achondroplasia is a common form of dwarfism caused by autosomal dominant mutation in the fibroblast growth factor receptor 3 (Fgfr3) gene. If a person with achondroplasia (Aa) married and had children with a person of normal height, what is the probability that both their first child and second child would have achondroplasia
The probability that both their first child and second child would have achondroplasia is a P=1/4 (one quarter).
What is Achondroplasia?Generally, Achondroplasia is simply defined as a genetic disorder in which the formation of long bones through cartilage ossification is slowed,
In conclusion. the probability that both the first child and second child of an achondroplasia patient has achondroplasia is 1/4 or a quarter chance.
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Cellular ______ is all of the chemical reactions in cells.
Activity
metabolism
enzymes
Cellular Metabolism is all of the chemical reactions in cells.
Definition: Cell metabolism is the series of processes that take place in living organisms to sustain those organisms.Hope that helps!
Answer:
metabolism
Explanation:
the sum of the chemical reactions that take place within each cell of a living organism and that provide energy for vital processes and for synthesizing new organic material.