Answer:
White
Immune
Explanation:
White blood cells, also called leukocytes, are one of the cells that are involved in the body's immune system. They protect the body against various infections diseases and other invaders. Leukocytes are produced in the bone marrow (hematopoietic stem cells). They are not the only cells that are important for the defense of the body but are important.
Which of the following is not an example of oxidation?
combustion
decomposition
photosynthesis
Answer:
photosynthesis
Explanation:
Answer:
photosynthesis
Explanation:
photosynthesis of a plant RELEASES oxygen but does not REQUIRE oxygen to generate. Decomposition does require oxygen to do the process. Combustion needs oxygen to keep the fire going.
Amed watched a video of someone using a jetpack rocket at a lake Water is pumped out of the lake into the jetpack, and then the water is fired
out of the jetpack, as shown in the picture. The rider is lifted out of the water and can move around over the lake. Explain how the height of the rider above the water could be increased. Support your explanation using Newton's third law of motion.
PLZ PLZ I NEED HELP 20 POINTS
Answer:
The rider could be lifted higher above the water by increasing the force of the water fired out of the jetpack.
Explanation:
This force is equal in strength to the reactive force in the opposite direction. The reactive force lifts the rider out of the water.
When we increase the height of the rider when the force on the water is increased.
Newton's laws of motion:
From the Newton's laws of motion, action and reaction are equal and opposite. As such, when the water is fired, it exerts a force on the rider causing him to move higher.
As such, we can increase the height of the rider when the force on the water is increased.
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WHAT IS ATP?
pls real answers .
Answer:
It’s a type of energy
Explanation:
Answer:
ADENOSINE TRIPHOSPHATE, a molecule that carries energy within cells. the main energy of the cell
Explanation:
The nucleus' DNA has the ___
or blueprints for amino acids.
1) recombinant DNA
2) codon
3) translation
4) pedigree map
PLEASE HELPP
Answer:
Pedigree map
Explanation:
Look it up
Photosynthesis creates a biomolecule from inorganic reactants. This type of biomolecule is made up of three main elements. What are the elements that mostly make up that biomolecule? Use capital letters and do not insert spaces. * Remember, no spaces!
The date palm tree shown below is found near Cairo, Egypt. Which of the following is an adaptation of the date palm?
Answer:
Date palm trees are able to survive several years without rain.
Explanation:
Plants living in the hot desert climate of Cairo are adapted to the desert climate by being able to survive several years without rain.
A characteristic that an organism can pass on to its offspring through its genes. A.Ability to sing B.Trait C.Ability to draw
Answer:
B; Traits
Explanation:
Which of the following accurately describes a subcellular organelle that functions in providing energy for the cell?
a. Chloroplasts are divided into an intermembrane space that contains thylakoids and the stroma, which contains chloroplast DNA, enzymes, and ribosomes.
b. Cristae divide mitochondria into the intermembrane space and the mitochondrial matrix, which contains mitochondrial DNA, enzymes, and ribosomes.
c. Nuclei consist of a nucleolus, proteins, and DNA, which interact to synthesize rRNA via transcription and translation.
d. Ribosomes consist of proteins and two rRNA subunits, which are synthesized and joined in the nucleolus.
please help
Answer:
Answer is B
Explanation:
Cristae divide mitochondria into the intermembrane space and the mitochondrial matrix, which contains mitochondrial DNA, enzymes, and ribosomes.
How many electrons does carbon have? (1 point)
O five electrons (three in its inner shell and three in its outer shell)
O six electrons (two in its inner shell and four in its outer shell)
O seven electrons (three in its inner shell and four in its outer shell)
O eight electrons (four in its inner shell and four in its outer shell)
Answer: six electrons (two in its inner shell and four in it’s outer shell)
Explanation: I got it right
what statement is false ?
Answer: my choice would be D my guy or girl
Explanation:
helllpppp!! will mark Brainliest!
Answer:
A
Explanation:
Energy is released in the form of heat and light
Answer:
the answer is (a)
Explanation:
look up on Google
i need help with this asapp
he process of using oxygen in the mitochondria to chemically break down organic molecules such as glucose to release the energy needed for life processes in cells is called
Answer:
Osmosis and for respiration
Explanation:
Answer:
respiration
Explanation:
Comparison of Photosynthesis and Cellular Respiration
Aspect
Photosynthesis
Cellular Respiration
Function
Energy Capture
Location of reactions Chloroplast
Reactants
Products
Answer:
Photosynthesis:
Function- Energy CaptureLocation of reactions- ChloroplastRespiration
Energy releaseLocation of reactions- MitochondriaExplanation:
Photosynthesis, occurs in the chloroplasts of plants. Here, solar energy is converted into chemical energy in the form of stable carbohydrates.
6 CO2 + 6 H2O + light → C6H12O6 + 6 O2
Carbon Dioxide + Water + Light Glucose + Oxygen
Chloroplasts, are small membrane-bound organelles of multi-folded membranes containing pigments, enzymes, and other molecules that facilitate the process.
Nutrients for a number of metabolic processes are basic compounds and macromolecules available. Through processing organic matter such as lipids, fats and proteins, animals get energy in heterotrophic nutrition.
For one for all metabolic processes, animals use carbohydrates as food. This occurs in the mitochondria...
C6H12O6+ 6 O2 → 6 CO2 + 6 H2O + ≅38 ATP
Glucose + Oxygen Carbon Dioxide + Water + Light
which of the following could be an observation in an investigation?
a. oil is not a good solvent for salt
b. the oil did not dissolve the salt sample
c. with enough mixing, the oil will probably dissolve salt
d. oil deep beneath the surface of the earth could leach salt from the rocks
is plastic Natural Material or Synthetic Material?
Answer:
Synthetic because it is not a natural resource or material
Answer:
Synthetic because it is not a natural resource or material
Explanation:
A sample of Potassium-40 has a mass of 2020 grams.
Potassium-40 has a half life of 1.3 b.y. How much Potassium-40 and Argon 40 would there be after 5.2 b.y.
The idea here is that the ratio that exists between the number of atoms of argon-40 and the number of atoms of potassium-40 will give you the number of half-lives that passed.
As you know, the half-life of a radioactive nuclide tells you the time needed for half of the atoms of said nuclide to undergo radioactive decay.
In your case, you know that potassium-40 has a half-life of
1.25
billion years because that's how long it takes for half of the number of atoms present in the sample to decay to argon-40.
Now, let's say that your sample started with
A
K-40
atoms of potassium-40 and
0
atoms of argon-40.
You can thus say that the sample will contain--keep in mind that the atoms of potassium that decay form argon-40!
After
1
half-life
1
2
⋅
A
K-40
=
A
K-40
2
1
→
atoms of potassium-40
A
K-40
−
A
K-40
2
1
→
atoms of argon-40
After
2
half-lives
1
2
⋅
A
K-40
2
1
=
A
K-40
2
2
→
atoms of potassium-40
A
K-40
−
A
K-40
2
2
→
atoms of argon-40
After
3
half-lives
1
2
⋅
A
K-40
2
2
=
A
K-40
2
3
→
atoms of potassium-40
A
K-40
−
A
K-40
2
3
→
atoms of argon-40
At this point, we can use this pattern to say that after
n
half-lives pass, the sample will contain
A
K-40
2
n
→
atoms of potassium-40
1
−
A
K-40
2
n
→
atoms of argon-40
Now, you know that sample contains
31
atoms of argon-40 for every
1
atom of potassium-40, which means that you have
A
K-40
−
A
K-40
2
n
A
K-40
2
n
=
31
This is equivalent to
A
K-40
−
A
K-40
2
n
A
K-40
2
n
=
31
2
n
−
1
2
n
⋅
2
n
1
=
31
which gives you
2
n
=
32
Since
32
=
2
5
you can say that
2
n
=
2
5
⇒
n
=
5
This means that
5
half lives must pass in order for the sample to contain
31
atoms of argon-40 for every
1
atom of potassium-40.
Consequently, you can say that the age of the rock is
5
half-lives
⋅
1.25 billion years
1
half-life
=
6.25 billion years
−−−−−−−−−−−−−−−
I'll leave the answer rounded to three sig figs, but keep in mind that you have two significant figures for the number of atoms of argon-40 present per atom of potassium-40.
Which of the statements below supports the claim that UV radiation has an effect on mutation rates. Select all that apply.
Answer:
c and e
Explanation:
usatestprep
The diagram shows a model of an ecosystem.
Stack of four blocks, with the largest block on the bottom of the stack and the smallest on the top. The first and largest box is labeled 100% and is titled Primary producers. The second box is labeled 10% and is titled First-level Consumers. The third box is labeled 1% and is titled Second-level Consumers. The fourth and smallest box is labeled 0.1% and is titled Third-level Consumers.
What does the model represent?
A. the total biomass in each trophic level
B. the total amount of energy in the ecosystem
C. the relative amount of energy available at each trophic level
D. the conservation of energy as energy transfers between organisms
Answer: i would say D but i'm not entirely positive
Explanation:
this is showing how the energy is distributed between the types of organisms in an environment
How many nerves are in your body to send
messages to brain and back?
a. Millions
b. Billions
Answer: Billions
Explanation: I took this same exact question and got it correct so i hope this helped!!
billions
I took a test like this, I even proof read my work to see if I was correct. Trust me, this is the correct answer!
In eukaryotes, the Krebs cycle takes place within the
is sulfur metal or nonmetal
Answer:
sulfur is a metal
Explanation:
Because it has the same properties as NaOH
Answer
nonmetallic
Explanation:
Sulfur (S) is a nonmetallic chemical element belonging to the oxygen group (Group 16 [VIa] of the periodic table), one of the most reactive of the elements. Pure sulfur is a tasteless, odourless, brittle solid that is pale yellow in colour, a poor conductor of electricity, and insoluble in water.
Competition between the members of a woodchuck population in a large field could be expected to increase as a result of an increase in the?
A) number of woodchucks killed by cars.
B) spread of disease among the woodchucks.
C) woodchuck reproduction rate.
D) number of secondary consumers.
Answer:
I think it's C
Explanation:
When the rate of reproduction increases, competition for life resources such as food will increase
The bone in the upper arm of humans that is compared to
upper arm bones of other species to determine homologous
structures is called the_____.
Answer: Humerus
Explanation: I hope this helped:))
Who am I?: (7th grade science)
you won't find me in bacteria which is an example of prokaryote. I am in control of things
Answer:
Okay so this would be an example of eukaryotes.
Explanation:
eukaryotes are multicellular organisms with so many cell types, so it control all gene expression.
What best describes the interaction described below:
Grass and Dandelions- Both plants try to get nutrients and water from the same area
of soil
O parasitism
O Competition
O Predation
O Commensalism
O Mutualism
Answer:
Mutualism
Explanation:
Both plants don't fight over the spot and are in within the same place.
Grass and Dandelions both compete for nutrients and water belongs to the same species, competition occurs between the same species called interspecific competition, hence option b is correct.
What is the interaction between Grass and Dandelions?When two distinct species fight for a restricted resource, such as space, this is known as interspecific competition. Grass, dandelions, and a variety of other plants compete for nutrients and water on a lawn.
Competition happens among individuals of the same species as well. The deep taproot draws minerals from the earth, such as calcium, and makes them available to other plants. While most think of dandelions as lawn killers, they really enrich the grass.
It will attach itself to sharks and other large fish in order to get a ride underwater. This is an example of commensalism but this connection can evolve into mutualism when the remora feeds.
Therefore belongs to the same species kind of interspecific relation, Grass and Dandelions having the interaction of competition, hence option b is correct.
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Which statement best explains why the Earth's gravity is able to hold the moon in orbit?
Answer:
The gravitational force
Explanation:
The strong gravitational force pulls it towards the earth. Also the moon causes the tides to push and pull.
Genes are sections of DNA that code for a particular trait. Genes are:
A. Carbohydrates
B. Lipids
C. Proteins
D. Nucleic Acids
What does a scientific argument always start with (before the claim)?
PLEASE HELP QUICK!!!! GIVING BRAINIEST!!!!!!
Answer: saturated, monounsaturated and polyunsaturated
Explanation: