Answer:
the paired bases( nitrogenous bases )
How are DNA and RNA different in terms of function, #strands, and sugars
Answer:
Functions: DNA is responsible for storing and transferring genetic information while RNA directly codes for amino acids and acts as a messenger between DNA and ribosomes to make proteins
Strands: DNA is a double stranded molecule while RNA is a single stranded molecule
Sugars: DNA contains the sugar dioxyribose and RNA contains the sugar ribose
A species of snake has evolved resistance to a poisonous newt allowing the snakes to prey on the newts. The newts have become more poisonous over time, as a result, leading to a kind of evolutionary arms race. This is an example of ____.
coevolution
mimicry
environmental resistance
commensalism
ecological succession
The newts have become more poisonous over time, as a result, leading to a kind of evolutionary arms race. This is an example of coevolution.
Coevolution is the process of evolutionary change that occurs between pairs or group of species as they interact with one another.
The predator-prey relationship is the most common type of coevolution. This involves the prey evolving so as to avoid capture and thus leading to the evolution of the predator so as to become more effective hunters.
Predator-prey coevolution is a kind of evolutionary arms race.
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Why is the carbon cycle important to living things
The carbon cycle is important because it moves carbon (which is a life-sustaining element) from the atmosphere to organisms, and back again. Without it, Earth would be unhospitable.
Can anyone please this? ASAP
Which cellular process is carried out by ALL organisms?
Group of answer choices
cellular respiration
chemosynthesis
photosynthesis
Answer:
CELLULAR RESPIRATION
Explanation:
All organisms, including plants, use the process of cellular respiration to transform stored energy in food molecules into usable energy. The energy produced is stored in the form of ATP and is used by organisms to conduct their life processes.
optic nerves travel through the __________ to ensure that visual signals go to each hemisphere of the brain.
Answer:
Optic Chiasm
Explanation:
Optic nerves travel through the optic chiasm to ensure that visual signals go to each hemisphere of the brain.
nadph builds up in the ________________ during electron transport.
NADPH builds up in the STROMA of the chloroplasts during electron transport. In chloroplasts, NADP+ is reduced by the ferredoxin-NADP+ reductase.
Nicotinamide adenine dinucleotide phosphate (NADPH) is the reduced electron form of NADP+.
The NADPH coenzyme is generated during the last step of the electron transport chain of the light-dependent reactions of photosynthesis.
NADPH is used by plant cells as an electron donor in different reactions associated with dehydrogenase and reductase enzymes.
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blood vessels that carry blood back to the heart are called
Answer:
There are three main types of blood vessels
The arteries (red) carry oxygen and nutrients away from your heart, to your body's tissues. The veins (blue) take oxygen-poor blood back to the heart. Arteries begin with the aorta, the large artery leaving the heart.
Explanation:
what is a difference between a waxing crescent and a waning gibbous?
Answer:
Waxing means it's getting bigger while waning means it's getting smaller.
Which formula represents an organic compound?
Mg(OH)2
C6H12O6
NH3
NaCl
Answer:
B
Explanation:
the average life span of an erythrocyte in the circulation is
approximately 115 days
Human red blood cells (RBC), after differentiating from erythroblasts in the bone marrow, are released into the blood and survive in the circulation for approximately 115 days.
Summarize active transport In your answer consider the direction of transport and any external
energy or special structures that are needed in the process .
Answer:
an area of lower concentration to an area of higher concentration.
ATP
Primary active transport directly uses a source of chemical energy (e.g., ATP) to move molecules across a membrane against their gradient.
the uptake of glucose in the intestines in humans and the uptake of mineral ions into root hair cells of plant
membrane pumps (such as the sodium-potassium pump) and vesicle transport.
Primary Active Transport.
The Cycle of the Sodium-Potassium Pump.
Generation of a Membrane Potential from the Sodium-Potassium Pump.
Secondary Active Transport.
Sodium Potassium Pump.
Endocytosis.
Exocytosis.
Active Transport.
Explanation:
Moving substances across a cell membrane against their concentration gradient, from an area of lower concentration to a region of greater concentration, is a process known as active transport in cells.
Thus, Active transport uses external energy—typically in the form of ATP (adenosine triphosphate)—to move materials against the concentration gradient as opposed to passive transport, which depends on the natural movement of particles.
Active transport involves the movement of materials across the cell membrane by means of specific membrane proteins called carrier proteins or pumps.
Thus, Moving substances across a cell membrane against their concentration gradient, from an area of lower concentration to a region of greater concentration, is a process known as active transport in cells.
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A process in which a large nucleus splits into two or more parts is called:
Answer:
Nuculear Fission.
A process in which a large nucleus splits into two or more parts is called nuclear fission.
What is nuclear fision?The term nuclear fission refers to the breaking apart of a large nucleus to give daughter nuclei with the accompanying release of energy. We have to note that usually the nucleus is bombarded by a small particle.
Hence, a process in which a large nucleus splits into two or more parts is called nuclear fission.
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Enzymes are (a)__________ which speed up the biochemical (b)____________ in living organisms. The enzymes themselves are not changed in these reactions, that is they are biological (c)________. Enzymes are (d)_________- each one controls only one type of reaction. They are (e)_________by high temperatures and by extremes of ph.
Answer:
Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.
Explanation:
Maybe this will help?
Enzymes are proteins that speed up the biochemical reactions in living organisms, and they are biological catalysts. Enzymes are substance-specific, each one controls only one type of reaction. They are denatured by high temperatures and by extremes of ph.
What are enzymes?Enzymes are biocatalysts made up of proteins, that increase the speed of the reaction.
Enzymes do not involve in the reaction and in the end of the reaction they separate from the reaction their substance is specific they are specific to reactions whose speed is increased by these enzymes.
In high temperatures and pH their structure changes as they are protein and with extreme where they also get the nature
Thus, the blanks are a. proteins, b. reactions, c. catalysts, d. Substance-specific, e. denatured.
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Why is water described as a polar molecule ?
Answer:
It is described as a polar molecule because of an unequal sharing or electrons, causing the molecule to have a more bent shape.
Explanation:
Electrons are attracted a bit more to the oxygen and spend more time with them than the hydrogen.
PLEASE HELP! - Molecules of a-ketoglutaric acid and ____ are made of all the same elements.
____ is made up of a-ketoglutaric acid and two ____ molecules.
Answer choices for all blanks: ammino, glucose, or glutamine
Answer:
First Ammino
Second Glutamine
Third Glucose
Explanation:
I had to do MAD research on this and it felt as if my head was going to bust.
What process is used to link amino acids together?
Answer:
condensation
Explanation:
Amino acids consist of carbon, oxygen, hydrogen, and nitrogen. The linking of two amino acids entails the release of a water molecule. Hence, the process that links two amino acids together is called condensation. The condensation reaction is also called a dehydration reaction.
Answer:
Amino acids consist of carbon, oxygen, hydrogen, and nitrogen. The linking of two amino acids entails the release of a water molecule. Hence, the process that links two amino acids together is called condensation.
Real life non examples for cell membrane
Answer:
ribosomes, the cell wall, and the cytoskeleton.
Explanation:
i need an answer asap
Answer:
yes
Explanation:
Bec. water molecules are polar, hydrogen bonds from between water molecules,polarity has nothing to do with cohension, adhesion and have surface tensionYour friend khamil experience a sharp, intense pain when he contracted his leg muscle running. Assuming this is indeed a muscle strain, it would be described as
Answer:
Muscle strain
Explanation:
Muscle strain
Answer:
B. Active
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How do genes control characteristics? Please help I’ve got a test tomorrow. Thank you!
Answer:
the proteins in the gene
Explanation:
Answer:
Genes are sections of DNA that are carried on chromosomes and determine specific human characteristics such as eye color and height.the proteins that genes carry are the ones responsible for controlling these characteristics or traits.
I hope this helps
what color do endospores and bacteria stain in an endospore stain
Answer:
Green!
Explanation:
Help please!!! ( No links aloud )
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Answer:
i would say you can go to a link but no link T-T
Explanation:
which layer consists on average of 25 to 30 layers of flattened dead keratinocytes.
Answer:
the Stratum Corneum
Explanation:
Definition most superficial layer; composed of 25-30 layers of flattened, dead keratinocytes constantly being shed and replaced
How are the competition and the commensalism relationships similar
Answer:
Predation and Competition. Two of the main ways that populations interact with one another is by competition and by predation. In competition, individuals seek to obtain the same environmental resource. In predation, one population is the resource of the other.
Explanation:
How are Zinc and Sodium alike
Answer:
they both are solid at room temperture
Explanation:
Zinc: Is Solid at room temperature
Zinc: Is a toxic heavy metal
Sodium: Is solid at room temperature
Sodium: Is a toxic heavy metal
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[tex]GraceRosalia[/tex]
what human activities have thrown the carbon cycle off balance?
Answer:
burning fossil fuels
Explanation:
As people burns fossils fuel, the carbon cycle is obstructed and the atmospheric conditions tempered with
In a 200m race, athletes sprint the entire length. What type respiration is most likely occurs near the finish line.
Alcoholic fermentation
Photosynthesis
Aerobic respiration
Latic Acid Fermentation
Answer:
Running can take many forms, from a leisurely jog to an all-out sprint. But no matter what kind of running you do, your body needs to power itself through respiration. Lighter, long-distance running causes your body to use aerobic respiration, while more intense sprinting and interval training requires anaerobic respiration.
Explanation:
a _______ can be defined as a very large molecule constructed from repeated molecular fragments or segments
a: amino acid
b: framework
c: monomer
d: polymer
Answer:
d. polymer
Explanation:
Polymer has a large number of similar units that are bonded together.
A covalent bond forms due to _____.
a. Sharing of electrons
b. Transfer of electrons
c. Losing or gaining electrons
d. All of the above