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:
Resource partitioning reduces the number of species that can share a given resource.
True
False
Answer:
true
Explanation:
When two species compete with one another for the same resource, their niches overlap. Resource partitioning reduces the number of species that can share a given resource. Some bats prey on certain moths, hunting them using echolocation. i.e. bats, have evolved to change the frequency they use for echolocation.
honey bee is a social insect .Why?
Answer:
Honey bees are social insects because they live together in large, well-organized family groups. A single honeybee cannot grow or survive by itself. The three distinct kinds of honeybees in a colony are queen, worker, and drone.
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most glands in the human body are a part of which system?
Answer: The endocrine system is a network of glands in your body that make the hormones that help cells talk to each other. They're responsible for almost every cell, organ, and function in your body.
How can you tell, when you look at a cross section of a young stem, whether it is a dicot or a monocot?
Answer:
Monocot and dicot stems differ in the arrangement of their vascular system
All stems have nodes, internodes, and axillary buds; these features distinguish them from roots and leaves, which do not have them.
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in the correct order, what are the three major arteries that branch off the aortic arch?
alkali metals are listed in the first column of the periodic table. this tells you that
a they are highly reactive
b they have only one electron in their outer orbital shells.
c their nuclei contain only one neutron
d both a and b
Answer:
B. they have only one electron in their outer orbital shells
Which term describes an extensive network of tubes, sacs, and vesicles throughout a cell that provides transport as its main function
during photosynthesis where is water split and oxygen released
Answer:
Stroma
Explanation:
Stroma Function. Most of the enzymes essential in the process of photosynthesis are normally embedded in the stroma and in the thylakoid membranes. The stroma is the fluid-filled space that is surrounding the grana, and is also involved in the synthesis of organic molecules from water and carbon dioxide.
what medications test positive for methamphetamemes?
Answer:
Ritalin (methylphenidate) and Adderall are used to treat ADHD, and are well known to cause a false positive for amphetamines and methamphetamines.
according to plato, where do souls have to drink before starting their new lives on earth?
According to Plato, the souls of people tend to reincarnation, that is, the souls of each person have had previous lives in which they have developed and have had different experiences.
Thus, as a way to generate an impartiality of the soul, which allows it to start a new life without influences on previous lives, they should drink water from the River of Forgetfulness.
This made the souls unable to remember anything from their previous lives or the adrenal world in which they were before coming back to life.
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A student is looking through a microscope at some cells of an onion root tip. Many of these cells are undergoing division since the root tip grows quickly and requires more cells. Which cell is going from metaphase into anaphase? W X Y Z
GIVING BRAINIEST TO FIRST PERSON TO ANSWER IT CORRECTLY!!!
Answer:
A student is looking through a microscope at some cells of an onion root tip. Many of these cells are undergoing division since the root tip grows quickly and requires more cells. Which cell is going from metaphase into anaphase? W X Y Z
It's y
The cell Y is transitioning from metaphase to anaphase.
What is metaphase?
The chromosomes are at their second-most compacted and coiled state during the mitotic stage of the eukaryotic cell cycle, known as metaphase. These chromosomes, which contain genetic material, align in the cell's equator before being divided into the two daughter cells.
A phase of cell division known as "metaphase" (mitosis or meiosis). Individual chromosomes are typically dispersed throughout the cell nucleus. During metaphase, the cell's nucleus disintegrates and the chromosomes condense and migrate toward one another, aligning in the middle of the dividing cell.
The duplicate genetic material existing in a parent cell's nucleus is divided into two identical daughter cells during the third stage of mitosis, known as metaphase.
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Somebody help me please
Answer:
C) Unsaturated fats
Explanation:
Unsaturated fat is liquid at room temperature. It is mostly in oils from plants. If you eat unsaturated fat instead of saturated fat, it may help improve your cholesterol levels.
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discuss how the proper ties of water hole earth super life
Answer:
Water's extensive capability to dissolve a variety of molecules has earned it the designation of “universal solvent,” and it is this ability that makes water such an invaluable life-sustaining force. On a biological level, water's role as a solvent helps cells transport and use substances like oxygen or nutrients.
Explanation:
What is the potential energy of a 0.15 kg apple hung on a 4-m high tree with respect to the ground?
(this is subject is science)
(need help ASAP)
[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]
As we know,
[tex]\boxed{ \boxed{potential \: \: energy = mgh}}[/tex]
where,
m = mass of the object = 0.15 kgg = acceleration due to gravity = 9.8 m/s²h = height attained by the object = 4 mlet's find the potential energy of that Apple :
[tex]0.15 \times 9.8 \times 4[/tex][tex]5.88 \: \: joules[/tex]How does wood that is not burning differ from a nonflammable materials?
Wood is flammable, which means that it can burn when it is exposed to heat, oxygen, and an ignition source (such a spark or flame).
Thus, Nonflammable materials are those that do not readily ignite and do not burn even when exposed to high temperatures or flames.
Combustion Behaviour: During a fire, when wood is exposed to heat and oxygen, a combustion process takes place, releasing heat, light, and numerous combustion byproducts like carbon dioxide and water vapour.
The fire is maintained and can spread as a result of this procedure. Even when exposed to high heat or flames, nonflammable materials do not burn and do not support a fire.
Thus, Wood is flammable, which means that it can burn when it is exposed to heat, oxygen, and an ignition source (such a spark or flame).
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what determines the primary structure of a dna molecule?
Answer:
I would go with the sequence of the bases in the nucleic acid chain
The sequence of nucleotides defines the primary structure of DNA and RNA where the nucleotides are linked to the oxygen on the 5' carbon of one through the phosphodiester bond linking to the oxygen on the 3' carbon of the other.
What is DNA?Deoxyribonucleic acid is a polymer which is made up of two polynucleotide chains that coil around each other to carry the genetic instructions for growth, function, development, and reproduction in all known organisms and many viruses. DNA and RNA are nucleic acids.
DNA is made up of chemical building blocks called nucleotides which are building blocks made up of three parts:
1. A phosphate group
2. A sugar group
3. One of four types of nitrogenous bases i.e. adenine (A), cytosine (C), guanine (G), and thymine (T)
To form a strand of DNA, nucleotides are linked in chains, alternating between phosphate and sugar groups.
Thus, the sequence of nucleotides defines the primary structure of DNA and RNA where the nucleotides are linked to the oxygen on the 5' carbon of one through the phosphodiester bond linking to the oxygen on the 3' carbon of the other.
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what are buffers and why are they important to cells
Answer:
Buffers are chemicals that help a liquid resist changing its acidic properties when other chemicals are added that will normally cause a change in these properties.
Answer:
buffers are chemicals that help a liquid resist changing its acidic properties. the reason they are important to cells is because buffers maintain the right pH of a liquid.
source(s)
https://sciencing.com/role-of-buffers-in-cells-12731573.html
Which underwater ecosystem is made of calcium carbonate structures?
tide pools
coral reefs
kelp forests
salt marshes
100 points and if correct brainliest <33
Answer:
coral reefs
Explanation:
Coral is a sea living or aqueous animal.Coral shells are made of solid calcium carbonate.Chemical formula for calcium carbonate is CaCO3Answer:
Coral reefs OR A coral reef
Explanation:
It's function is to provide protection / shelter for different species of fish/water wildlife.It is an ecosystem Which is under water.Corals are marine/ocean invertebrates (without a backbone)what type of acid breaks down food in your stomach?
Answer:
stomach acid or gastric acid
Explanation:
define dark reaction ?
Answer:
: any of a series of chemical reactions in photosynthesis not requiring the presence of light and involving the reduction of carbon dioxide to form carbohydrate especially : calvin cycle.
name the three dimensional shape of the dna molecule
Answer:
The double helix
Explanation:
Collagen has: Group of answer choices pyrrolidine rings, which stabilize helices and glycine residues at every third position (because only glycine residues can fit inside of the super-helical cable). rings of glycine, which can stabilize helices and proline residues at every third position (because only proline residues can fit inside of the super-helical cable). rings of proline and glycine residues at every second position. pyrrolidine rings, which can push off and destabilize the helix and glycine residues at every second position (because only glycine residues can fit inside of the super-helical cable).
Collagen has: A. pyrrolidine rings, which stabilize helices and glycine residues at every third position (because only glycine residues can fit inside of the super-helical cable).
Collagen can be defined as the main or most abundant structural protein found in the bones, tendons, connective tissues, skin and muscles of a living organism such as a human being.
Basically, collagen is a chemical substance (protein) made up of amino-acids and it holds the human body together.
Hence, collagen typically makes up about 30% of the proteins contained within the human body.
Additionally, collagen comprises the following specific amino-acids:
Hydroxyproline.Glycine.Arginine.Proline.Each of the three chains of a collagen triple helix with 3.3 residues per turn, is normally stabilized by the steric repulsion between the pyrrolidine rings of hydroxyproline, glycine and proline residues.
Therefore, the pyrrolidine rings of collagen helps in the stabilization of helices and glycine residues, at every third position because the only residue that fits inside of the super-helical cable is the glycine residues.
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NEED HELP ASAP PLEASEEE!!
Which item is NOT part of an effort to reduce health care workers exposure to hazardous chemicals?
A: protective storage
B: sterilization agents
C: pre-measured doses
D: needleless administration
Answer:
D: needleless administration
Explanation:
Answer: sterilization agents
Explanation:
Just the assignment
which condition can cause a forward tilt of the pelvis and an increased curvature of the lower back?
Answer:
Tight hip flexor muscles
a scientist is studying the various prokaryotic and eukaryotic species found floating in a sample of water taken from a marine ecosystem. which cellular component will be found in the widest range of organisms in the sample?
Why can't the amount of water in the seed gizmo lab be the dependent variable?
Answer:
The dependent variable is usually what scientists measure in an experiment. In this case, the amount of water is the independent variable because that is what you're changing in the experiment: one seed gets a lot of water and the other seed only gets a little water.
Explanation:
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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
How can you tell the age of a twig?
Answer:
The age of the whole twig can usually be determined by counting back from the longest branch.
Answer:
Para calcular la edad de los árboles según este método: Medir la circunferencia del tronco a una altura de unos 140 cms respecto al suelo. CaLcular el diámetro: dividir la circunferencia entre pi (3,1416). Multiplicar el diámetro obtenido por el factor de crecimiento medio de la especie del árbol.
Explanation:
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How long would it take to travel 2.5 million light years at the speed of light?
Answer:
2.5 million years
Explanation:
How could we model seismic waves in a different way? Come up with another model for this activity and explain the model.
Answer:
clarify please.
Explanation:
Answer:
Image result for How could we model seismic waves in a different way? Come up with another model for this activity and explain the model.
There are three basic types of seismic waves – P-waves, S-waves and surface waves. P-waves and S-waves are sometimes collectively called body waves.
Explanation:
