Answer:
ground water
Explanation:
What part of a nucleotide accounts for the genetic variation between individuals:
Sugar, Phosphate, Deoxyribose, or Nitrogenous Base?
Answer: Nitrogenous base
Explanation:
how many bones do human have
Answer:
206 bones lol cool right
The size of a food chain can vary, but the number of levels that a food chain can reach is limited. Why does this limit exist ?
Answer:
Energy is lost at each trophic level.
Explanation:
hope this helps have a good rest of your day :) ❤
Energy is lost at each trophic level.
What is food chain ?
Food chain, in ecology, the sequence of transfers of matter and energy in the form of food from organism to organism.
What is tropic level?
Trophic level is defined as the position of an organism in the food chain and ranges from a value of 1 for primary producers to 5 for marine mammals and humans.
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What factor prevents us from finding fossils from the Precambrian era?
A. Life-forms in this era had no skeletons.
B. This was before life existed on Earth.
C. Life was destroyed by a series of mass extinctions.
D. There are no rocks left from that era.
Answer:
rhe answer is that the rocks of that time are buried deeply under the soil.
The factor that prevents us from finding fossils from the Precambrian era is that life-forms in this era had no skeletons. Therefore, option (A) is correct.
What was Precambrian era?The Precambrian era spans from the formation of Earth about 4.6 billion years ago to the start of the Cambrian period about 541 million years ago. During this time, life on Earth consisted mainly of simple, single-celled organisms such as bacteria and algae.
These organisms lacked the hard shells, bones, and other structures that are typically preserved as fossils. Therefore, the fossil record from the Precambrian era is relatively sparse, consisting mainly of impressions and other traces left by these early organisms in sedimentary rocks.
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what is this new island made from? sedimentary, metamorphic, or igneous?
Answer:metamorphic
Explanation:
According to the kinetic theory of matter, how many particles that make up a substance are constantly in motion?
Answer:
D
Explanation:
According to the kinetic theory of matter, option D. all the particles that make up a substance are constantly in motion.
The Kinetic Theory of Matter states that all matter is made of particles that are atoms and molecules that are constantly in motion in the substance, therefore, particles of all matter have kinetic energy.
Some particles have more kinetic energy than other particles due to fact that all particles of matter do not move at the same speed even though particles of matter are constantly moving.The temperature of matter or object is the average kinetic energy of the particles in an object.Thus, the correct answer is - option D. all the particles.
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Give two examples of phospholipid soluble molecules? How can these molecules move across the cell membrane? What affects the direction of their movement
Answer:
1. Only small uncharged molecules can diffuse freely through phospholipid bilayers (Figure 2.49). Small nonpolar molecules, such as O2 and CO2, are soluble in the lipid bilayer and therefore can readily cross cell membranes. 2. Diffusion through a permeable membrane moves a substance from an area of high concentration (extracellular fluid, in this case) down its concentration gradient (into the cytoplasm). 3. Objects change their motion because unbalanced forces act on them. There are four main factors that affect the motion of objects. These factors are force, friction, inertia, and momentum.
Explanation:
Hope this helps. ^_^
Answer:
Examples include steroids and Vitamins
Phospholipids ,as the name implies fall under the category of lipids. Phospholipids have a hydrophilic "head" which has a strong attraction to water molecules.The hydrophilic head contains a phosphate group which allows for reactivity with water molecules.
Phospholipids also contains two hydrophobic "tails" which has a strong repulsion to water. The tails are derived from fatty acids and are joined by a glycerol molecule. These compounds are less reactive to water molecules .
These properties make phospholipids to be soluble in both water and oil which favors the movement of molecules such as Steroids and Vitamins in and out of the cells through the process called Diffusion.
The direction of movement depends on the concentration of molecules as they usually move from a region of high concentration to a region of lower concentration to ensure there is equilibrium and proper functioning of cells.
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Multiple Choice
Which of the following is typical of aerobic respiration?
decreases a plant’s weight
contains two stages, glycolysis and fermentation
produces methane as a byproduct
produces little energy
Answer:
decreases a plant’s weight
Explanation:
Aerobic respiration is a process of respiration in which oxygen is required and the byproducts of aerobic respiration are carbon dioxide, water and energy.
Plants undergo aerobic respiration and it is a catabolic process in which complex compounds in plants turns into simpler compounds. This process reduces the dry weight of the plants.
Glycolysis is the first step in both aerobic and anaerobic respiration so it is not a typical aerobic respiration.
Hence, the correct answer is "decreases a plant’s weight".
whats the Location for Postsynaptic
Answer:
is located on an axon
what produces the cell cycle?
Answer:
The cell cycle can be thought of as the life cycle of a cell. In other words, it is the series of growth and development steps a cell undergoes between its “birth”—formation by the division of a mother cell—and reproduction—division to make two new daughter cells.
Use the point in the diagram to name the figure
Answer:
i dont have anythign on it
Explanation:
What is the relationship between DNA, codons, and proteins?
Which of the following statements about phenotypes and genotypes is false?
A. Phenotype can be changed by the environment.
B. Genotype affects phenotype by providing the instructions for making proteins.
C. Phenotype is an organism's visible characteristics.
D. An organism's phenotype is only made up of genes and alleles.
Answer:
D. An organism's phenotype is only made up of genes and alleles.
An organism's phenotype is only made up of genes and alleles is the false statement about genotype and phenotype.Therefore, the correct option is D.
What is a genotype and phenotype?Genotype refers to the genetic makeup of an organism, including all of its inherited genes and variations. Phenotype refers to the physical characteristics and traits of an organism that result from both its genetic makeup (genotype) and environmental factors.
The given statement is false because an organism's phenotype is not only determined by its genes and alleles, but also by environmental factors such as diet, exposure to sunlight, and other external factors.Therefore, the correct option is D.
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Which two characteristics describe organisms in the kingdom Animalia?
A. They are heterotrophic
B.They are unicellular
C. They are multicellular
D.They have prokaryotic cells
This is a multi (two) answer
Answer:A and C
Explanation:
Answer:
A and C
Explanation:
All members of Animalia are multicellular, and all are heterotrophs (that is, they rely directly or indirectly on other organisms for their nourishment). Most ingest food and digest it in an internal cavity. Animal cells lack the rigid cell walls that characterize plant cells.
I also did the test and got it right.
When a person doesn't get enough sleep, their immune system:
A Becomes stronger
B Becomes weaker
C Gains autoimmunity
D Can't remember diseases
Answer:
becomes weaker
Explanation:
because if you stay up all night you might sick
Explanation:
When a person doesn't get a enough sleep, their immune system can become weaker.
I hope this helps you.
Which of the following environmental factors would positively influence the survival and reproduction of only light peppered moths?
A.
A forest fire that burns down the trees.
B.
Laws that improve air quality and restrict pollution.
C.
Increasing the number of factories that burn coal into the air.
D.
A disease that infects the light peppered moths and not the dark.
Answer:
The correct answer is - option B. laws that improve air quality and restrict pollution.
Explanation:
The dark peppered moths were the adaption of the light peppered moths due to the change in the environmental condition of increased pollution that made tree bark dark in color and allows birds to easily prey on the light peppered moths.
This leads to natural selection and light moths become dark but the after Clean Air Act was that there was less pollution then there is less soot in the air, so trees were less black which result in the Light-colored moths would increase, and dark-colored moths would decrease.
How do plants in the ocean deal with the limited penetration of light into the water?
Group of answer choices
Loose root systems
Tall structures with broad leaves
Mutualism with fish
Reliance on tidal rises and falls
Answer:
3
Explanation:
What is the precipitation of Seattle if:
wind speed (mph) - 7
air pressure (mb) - 1020.8
air temp (f) - 42
cloud cover (%) - 0
Answer:
88
Explanation:
5. Speed is a __________ but has no direction whereas, velocity is a ______________ which includes direction. A vector has ____________ and _______________.
Speed is a scalar quantity but has no direction whereas, velocity is a magnitude which includes direction. A vector has magnitude and direction.
Answer:
. Speed is a ____scalar quantity______ but has no direction whereas, velocity is a ______vector quantity________ which includes direction. A vector has __magnitude__ and __direction___.
Why are green plants considered producers?
Green plants directly absorb sunlight to make energy.
Green plants contain chlorophyll.
Decomposers consume green plants.
Green plants are eaten by secondary consumers.
Answer:
The organisms that are capable of preparing their own food from simple inorganic substances like carbon dioxide and water by using sunlight energy in the presence of chlorophyll are called producers. The green plants synthesize their own food through the process of photosynthesis and thus are called the producers.plants produce food for themselves, they are known as producers.Which statement best describes the Law of Superposition?
Answer:
B) In undisturbed layers of sedimentary rock, the lowest layers contain the older rocks.
Explanation:
CORRECT
The best statement for law of Superposition is in undisturbed layers of sedimentary rock, the lowest layers contain the older rocks. Thus option B is correct.
What is law of superposition?Law of superposition stated that a key stratigraphic concept indicating that within a sequence of sedimentary rock layers, the oldest layer is at the bottom and the layers are increasingly younger with ascending order in the sequence.
Superposition is defined as the ability of a quantum system to exist in numerous states until it is measured.
It can also be stated that an assumption that serves as a foundation for the sciences of geology, archaeology, and other fields concerned with geological stratigraphy.
Thus, the best statement for law of Superposition is in undisturbed layers of sedimentary rock, the lowest layers contain the older rocks. Thus option B is correct.
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Your question is incomplete, but probably your complete question was
Which statement best describes the Law of Superposition?
A) Each sedimentary rock layer represents 1000 years of Earth's age, much like the rings of a tree
B) In undisturbed layers of sedimentary rock, the lowest layers contain the older rocks.
C) Rocks that form near volcanos are older than surrounding rock
I’ll mark as BRANLIEST!!
30 POINTS!!
Please help me!!
Answer:
They are complimentary DNA strands of each other
I remember them via AT (AT-AT from Star Wars and this gets you 2 H bonds) and CG (cross guard light saber, the ridiculous one with the helm of the sword having it's own light saber so it is crossed and has 3 H bonds). Ridiculous makes things more memorable imo.
Explanation:
How can research into cell division and aging help humans live longer and healthier?
Answer:
cell division means when the cell will grow old and die if you are able to slow down the cell division process or control it then the aging process can be slowed.
Answer:
because it can help you know what to prevent or to keep doing
Explanation:
A student has drawn a model of cellular respiration, but it contains 3 errors.
Label each part of the model as "CORRECT" or "WRONG" by choosing from the drop-down menu.
In the next question, you will explain each error you identified in the model
CELLULAR RESPIRATION
1. LIGHT energy
4.
OXYGEN
2. GLUCOSE
>
3. OXYGEN
Note: Water has
intentionally been left out
of this model and therefon
is not an error
5.
Light energy has
been changed into
chemical and
kinetic energy
Answer:
LIGHT energy - correct
OXYGEN - correct
2. GLUCOSE - incorrect
Explanation:
Hope this helps please mark me as brainlyest
The thumbs of humans can grasp things because they are ___.
a) upright
b) opposable
c) unjointed
d) thin
Answer: b. is the correct answer opposable
Explanation:
opposable: (of the thumb of a primate) capable of moving toward and touching the other digits on the same hand.
Which scenario would most likely result in the extinction of one or more species? The water temperature of a pond decreases slightly, and the members of the pond populations adapt to the change. The conditions are abnormally dry for one season in a desert, resulting in the deaths of a few members of a snake population. A predatory fish is introduced into a lake, resulting in a dramatic decrease in the populations of smaller fish. A new plant species begins growing in a forest, resulting in a new food resource for many animal populations.
ITS C
Answer:
C. A predatory fish is introduced into a lake, resulting in a dramatic decrease in the populations of smaller fish.
Explanation:
i took a test and i'm pretty sure its right
What is the end result of DNA replication?
O An mRNA strand that will be used to create a protein.
O two strands of DNA that are identical to cach other
O An MRNA strand that will not be used to create a proteir
O Two strands of DNA that are different from one another.
Answer:
two strands of DNA that are identical to each other
Explanation:
Replication is defined as the process in which two identical copies of DNA is formed from parent DNA strand. The end result of DNA replication is two strands of DNA that are identical to each other which are called chromatids. The process of DNA replication is known as semi-conservative as the end result is consist of one new and one old chain of nucleotides.
Hence, the correct answer is "two strands of DNA that are identical to each other".
adenine+ribose sugar+3phosphates=
♡︎10 points for this question♡︎
Describe an area that would have the most and least bacteria.
Would be very appreciated if you help me out! (Will also be marked as brainliest)
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5
Which two of the following are allotropes of carbon?
w
Buckminsterfullerene
Graphene
Footballene
Steel
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Which of the following are allotropes of carbon?
a) Buckminster Fullerene
b) Graphene
c) Footballene
d) Steel
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The right answer is option a (Buckminster fullerene).
Fullerene is one of the crystalline allotrope of carbon, which was discovered in 1985 collectively by the scientists Richard E. Smalley, Robert F. Curl, Sean O' Brien, James Heath and Harold Kroto. The name 'buckminsterfullerene' was given to the fullerene molecule discovered as a homage to the American architect and scientist Buckminster Fuller.
________________________________
MORE TO KNOW ABOUT FULLERENE:-Properties of fullerenes:
It is found in soot, interstellar dust and in carbon rich rocks.They are bad conductors of electricity.They are magnetic in nature.They are odourless.They can be soluble in solvents like chloroform, benzene or toluene.Uses of fullerenes:
They are used as lubricants.They are used as insulators.Some forms of fullerenes can conduct heat and electricity. So, they are used as superconductors and semiconductors.They are used in the process of drug delivery._________________________________
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