Answer:
By the amount of silica
cause igneous rock is classified by their color, texture and chemical composition
Two views of a kidney. Which level of organization is shown in the diagram? organ ,tissue, organ system, cell
Answer:
tissue
Explanation:
its tissue
Answer:
b. tissue
Explanation:
edge 2021
Given their size and complexity, biological molecules such as carbohydrates, proteins, lipids, and nucleic acids can also be referred to as ____________.
Answer:
This question lacks options, the options are;
A. Enlarged molecules
B. Macromolecules
C. Inorganic molecules
The answer is B
Explanation:
As mentioned in this question, carbohydrates, proteins, lipids, and nucleic acids are the basic biomolecules found in nature. They are all polymeric substances, hence, are made up of smaller units called monomers.
Asides from being biomolecules, these four molecules are also referred to as MACROMOLECULES based on their large size and complex nature. Macromolecules are molecules that are relatively large in size composing of an aggregate of monomer. Hence, these biomolecules are macromolecules.
Myoglobin levels are higher in Tibetans and other ethnic groups that live at high altitudes. Explain the benefit of higher myoglobin levels for individuals living at high altitudes.
Answer:
They are able to take up and store more oxygen in their muscles
Explanation:
According to Oxford dictionary, myoglobin is ''a red protein containing haem, which carries and stores oxygen in muscle cells. It is structurally similar to a subunit of haemoglobin.''
The fact that Tibetans have a high level of myoglobin implies that they are able to take up and store more oxygen in their muscles since myoglobin is involved in storage of oxygen in muscle cells. Hence elevated levels of myoglobins enables the muscle cells to work more effectively.
Which process occurs during the light-dependent reactions in photosynthesis?
A. Water molecules are split
B. Carbon fixation occurs
C. PGA is reduced
D. RuBP is regenerated
Answer:
b
Explanation:
which best describes a difference between transcription and dna replication
Based on the Punnett square, what is the phenotype of the offspring? Hh HH tall short Mark this and return
Answer:
tall
Explanation:
I took the test
During intense exercise, the muscle cells require constant supply of ATPs but the supply of oxygen is low. In that case - the muscle cells of the person will switch from which to which pathway?
Answer:
Aerobic to lactic acid fermentation pathway
Explanation:
ATP, which is the usable form of energy in living cells, is obtained via a process called RESPIRATION. However, aerobic respiration requires a constant supply of oxygen to occur. Hence, during an intense exercise where the supply of oxygen is low, the muscle cell has to switch from the respiration pathway that requires oxygen to one that doesn't.
Fermentation is a kind of cellular respiration that does not require oxygen to occur. In the muscle cells of animals (humans inclusive), lactic acid is the product of the fermentation process, hence, it is called LACTIC ACID FERMENTATION. This means that the muscle cells, in a low supply of oxygen, will switch from AEROBIC to LACTIC ACID fermentation pathway.
The last common ancestor of all animals was probably a(n) The last common ancestor of all animals was probably a(n) algae. chytrid. yeast. protist. fungus.
Answer:
The correct answer is - protist.
Explanation:
Protist is a single-celled eukaryote that contains organelles. It is the last common ancestor of all animals as is consider as most primitive animal cells as it has no cell wall but contains the nucleus and other double-membrane organelles. The protists are the cell that distinguishes fungus, plant cells, and animal cells into these three different kingdoms.
Thus, the correct answer is - protist.
what do you think the most important property of life is and why
Answer:
i think discovery
because people are curious
and curiosity is an important reason to live
no one wants to live in vain
Greetings from Turkey
Explanation:
GOOD LUCK ツ
Answer:
Water
Water is life. Without water, we would be dehydrated and our body would not perform well.
Consider a neuron in which the Cl- concentration inside of the cell is 15 mM and outside of the cell is 140 mM. Once the ions flow and reach an equilibrium, approximately what will be the concentration of Cl- inside of the cell
Answer:
The correct answer is - negative.
Explanation:
Cl- ion is more concentrated outside of the cell, as it is given 140 and therefore it will try to move to the inside of the given cell as inside ion concentration is low.
At last, the diffusive force will be get to equilibrium due to an electrostatic force pulling Cl- ions back out of the cell. At this equilibrium point, Cl- ions will moved towards to the the neuron and cause the membrane potential to be more negative.
Identify the object with greatest inertia.
Bowling ball
Tennis ball
Billiard ball
Basket ball
Answer:
Bowling ball
Explanation:
Name the process by which sugar moves into cell A.
Name the process by which sugar moves into cell B.
Answer:
need picture brahj, but I got u, when it moves from high concentration to an area of low concentration, a process called diffusion. its process of moving glucose across the cell membrane is called facilitated diffusion.
Explanation:
Exfoliation is which type of weathering?
A. Biological
B. Physical
C. All of these
D. Chemical
Answer:
The answer is chemical weathering.
Explanation:
Mendel chose pea plant (Pisum sativum) for his experiment. Write the reasons:
Answer:
Mendel choose pea plant (Pisum sativum) for his experiment due to following reasons:
(i) availability of contrasting traits of several characters.
(ii) Their life span is short.
(iii) Normally self-pollination occurs but cross-pollination can also be done by artificial means.
(iv) Large no of seeds produced.
Mendel choose pea plants for his experiments because of the following reasons:
(i) The flowers of this plant are bisexual.
(ii) They are self-pollinating, and thus, self and cross-pollination can easily be performed.
(iii) The different physical characteristics were easy to recognize and study.
In the electron transport chain, which structure forms a channel in the inner membrane of the mitochondria and adds phosphate to ADP
Answer: ATP synthase
Explanation:
The ATP synthase complex is an enzyme located in the inner membrane of the mitochondrion that catalyzes the synthesis of ATP from ADP, a phosphate group and energy supplied by a proton (H+) flux. This ATP synthesis occurs during cellular respiration, which is a set of biochemical reactions by which certain organic compounds are completely degraded by oxidation to inorganic substances. This process provides usable energy to the cell in the form of ATP.
During cellular respiration, ATP synthesis is termed oxidative phosphorylation and the proton flux takes place between the intermembrane space and the mitochondrial matrix. ATP synthase produces ATP when protons flow through it. The proton flow creates a pH gradient and an electrochemical gradient. This proton gradient is used by ATP synthase to form ATP via oxidative phosphorylation. ATP synthase acts as an ion channel that "returns" protons to the mitochondrial matrix. During this return, the Gibbs free energy produced during the generation of the oxidized forms of electron transporters is released. This energy is utilized for ATP synthesis. It must then be considered that the electron transport chain and oxidative phosphorylation are coupled by the proton gradient.
The rapid diversification of species seen in the fossil record followed by long periods of stasis is part of the ________ model of evolution.
Answer:
punctuated equilibrium
Explanation:
According to the punctuated equilibrium model of evolution, the process of evolution involves a sudden spontaneous burst in the diversity of species (speciation).
This period is now followed by a long period in which the there is no change in the species. This period is known as the period of stasis or equilibrium.
Hence, the rapid diversification of species seen in the fossil record followed by long periods of stasis is typical of the punctuated equilibrium model of evolution.
Water evaporates from a lake. Arrange the next steps of the water cycle in the correct order.
Water vapor condenses to form clouds.
Water flows down mountains and hills.
Water falls as rain, snow, and sleet.
Water joins streams or forms
groundwater
Answer:
1. Water evaporates from a lake
2. Water vapor condenses to form clouds
3. water falls as rain, snow, and sleet.
4. water flows down mountain and hills
5. water joins streams or forms ground water
Repeating cycle
A man cannot be a carrier for hemophilia. Why?
Answer:
This means that males only have one copy of most of the genes on the X chromosome, whereas females have 2 copies. Thus, males can have a disease like hemophilia if they inherit an affected X chromosome that has a mutation in either the factor VIII or factor IX gene.
you have learnt that forest lead to groundwater recharge but don't you think that groundwater should decrease as plant would absorb lots of water?
Answer:
No raining will refill it
hope it helps
pls mark me as the brainliest
thank u
Explanation:
The theory of natural selection states that
Answer:
Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.
Explanation:
"" what is photosynthesis "'
[tex]\sf{\overline{\underline{PHOTOSYNTHESIS }}}[/tex]
Photosynthesis is a chemical reaction that takes place inside a plant, producing food for the plant to survive.Carbon dioxide, water and light are all needed for photosynthesis to take place.Photosynthesis happens in the leaves of a plant.
Use the drop-down menus to complete each sentence. occurs when the immune system attacks the body. is often caused by obesity resulting from overeating and poor nutrition. is caused by DNA changes in a single gene and affects the nerve cells in the brain. is caused by uncontrolled cell growth. occurs when the pancreas does not produce enough insulin, or the body does not respond properly to it.
Answer:
The correct answer is -
1. Lupus
2 Cardiovascular disease
3. Huntingtons disease
4. Cancer
5. Diabetes
Explanation:
Lupus is one of the autoimmune diseases that takes place when our bodywork against ourself and harm cells and skin. When an individual has poor or bad nutrition and generally experiences obesity this cardiovascular disease occurs.
Huntington's disease takes place due to changes in DNA in the brain and affects neurons of the brain. Cancer is uncontrollable cell growth that can be lethal. If an individual is not able to produce enough amount of insulin, that lowers the glucose from the blood, will lead to cell diabetes condition
Which direction do
rock fragments eroded
by runoff generally
travel?
A downhill
B uphill
C uphill at certain times
of the day and
downhill at other
times of the day
D horizontally until
they reach an
obstacle that they
cannot pass over
Answer:
A downhill
Explanation:
A runoff happens when water drags sediment from a rock over a sloping terrain. Thus, water drags the eroded fragments of a rock in favor of gravity, pushing these fragments downwards. This is very common in mountainous and steep regions, without vegetation cover, where erosion caused by runoff is very high.
What is the average hours that a newborn baby sleeps?
Answer:
14.to 17 hours of a 24 hour period . say the national sleep faoundation , some newbourn sleep up to 18.to 19 hours a day
Answer:
Newborns should get 14–17 hours of sleep over a 24-hour . Some newborns may sleep up to 18–19 hours a day. Newborns wake every couple of hours to eat.
Question 5
20 pts
If enzymes could not be used during a reaction, which of the
following could be added to a system to make the reaction occur?
O energy (possibly heat)
water
0 product
O substrate
Answer:
substrate is wright
hope it may help you
Which structure is directly involved in gas exchange?
ESSE
O trachea
pharynx
O alveoli
O bronchi
Answer:Alveoli
Explanation:cause I got it wrong from someone else
What is Science ???.........
Answer↷
Science, any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws.
➦I hope it seemed helpful to you!
Answer:
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Which type of selection is also known as diversifying selection because it tends to favor the survival of two or more different phenotypes in a heterogeneous environment
Answer:
Disruptive selection.
Explanation:
Disruptive selection is also called diversifying selection because it favor the survival of two or more different types of phenotypes in a particular environment. Disruptive selection describes changes in population in which extreme values for a trait are favored whereas the intermediate values are less favored. Due to the increase the variance of the trait which leads to the division of population into two distinct groups.
what lead to the growth of most sea weeds in lakes . please help
Answer:
The more turbid the water, the warmer the water will be, allowing algae to grow quickly. As algae forms, the water becomes increasingly turbid, which fosters an even stronger environment for algal blooms to thrive.
Answer:
carbon and organic substance
Explanation:
when animals are dead under the sea /or when some other substance under go the process of decomposition they produce carbon and some nutrients hence support plants growth
Which of the following proteins could be used to carry proteins across the
cell membrane?
Answer:
The answer is B :)
Explanation:
Proteins pass through the membrane through passive transport. So the protein used to carry protein through integrated channel membrane. so the correct option is C.
What are proteins?A protein is a naturally occurring complex substance which consists of amino acid residues joined by peptide bonds.
Passive transport is defined as movement of a solute from a region of high electrochemical potential to a region of lower electrochemical potential on the opposite side in cell membrane. The figure representing the protein transportation through protein carrier channel.
For more details regarding proteins, visit:
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