Answer:
Most vertebrates and some invertebrates, such as this annelid earthworm, have a closed circulatory system. (b) In open circulatory systems, a fluid called hemolymph is pumped through a blood vessel that empties into the body cavity. ... The blood is called hemolymph because it mixes with the interstitial fluid.
Explanation:
Hope this helps...
A hobbyist has increased the number of fish in his aquarium. He is trying to decide whether he should add fresh plants or the colorful
plastic ones. Which of the following would help him make up his mind and increase the possiblty that all his fish will survive? (TEK 4D)
O a
The plastic plants will make the aquarium prettier to look at for the fish.
Oь
The plastic plants cost less money.
О с
The fresh plants will provide a place to hide.
Od
The fresh plants will create oxygen.
Time left for this
Answer:
can anyone help me in computer please please
A covalent bond forms due to _____.
a. Sharing of electrons
b. Transfer of electrons
c. Losing or gaining electrons
d. All of the above
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.
Learn more about nuclear fission: https://brainly.com/question/13805601
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
Hope this helps! :)
[tex]GraceRosalia[/tex]
what are the functions of carbohydrates
this is the answer,pls mark me brainliest
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.
To learn more about enzymes, refer to the below link:
https://brainly.com/question/12194042
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What is a null hypothesis
(In a statistical test) the hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.
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
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
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.
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.
Learn more about cell membrane, refer to the link:
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in which stage of the cell cycle does a cell contain twice its normal number of chromosomes?
Answer:
anaphase
Explanation:
(don't mind this need 20)
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.
Question 25
1 pts
Which aspect of a chemical reaction is affected by enzymes?
0 rate
O direction
O equilibrium
Орн •
Answer:
Its rate
Explanation:
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:
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
Help please!!! ( No links aloud )
≤))✓
_| \_
Answer:
i would say you can go to a link but no link T-T
Explanation:
if yellow, red, and orange pigments exist in the leaves of trees, why are leaves green except for in the autumn?
Answer:
During the fall the day gets shorter hence less sunlight this results to leaves stopping their food making process. The chlorophyll breaks down, the green color disappears and the yellow to orange color becomes visible
Explanation:
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.
after the four steps of cellular respiration, where is most of the energy stored?
Answer:
on the inner membranes of the mitochondria
Explanation:
instead of all the energy being released at once and that energy is used to form ATP
Which formula represents an organic compound?
Mg(OH)2
C6H12O6
NH3
NaCl
Answer:
B
Explanation:
How do cells
Aquire the materials.
and
energy
necessssary
to
sustain cire?
Answer: they take nutrients from food
Explanation:
Cells get energy by taking in nutrients from food. Cells get energy only by taking in oxygen from the atmosphere.
Your 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
You're Welcome
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:
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
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.
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.
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.
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.
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: