Answer:243
Explanation: multiply all of them then add and it will be 243
The expression that is equivalent to a - 4 is: (a - 2) - 2 or (a - 6) + 2 or (a - 4) + 0 or (a - 8) + 4.
What is an expression?An expression in mathematics is a set of variables, constants, and operators that can be evaluated to produce a value.
For example, the expression "2x + 3" contains the variable x, the constants 2 and 3, and the operators + and *.
When we substitute a value for x, such as x = 4, we can evaluate the expression to get a value, in this case 11.
The expression that is basically equivalent to a - 4 is:
(a - 2) - 2 or (a - 6) + 2 or (a - 4) + 0 or (a - 8) + 4.
For example,
If a = 6, then a - 4 = 6 - 4 = 2, and we can also write it as (6 - 2) - 2 or (6 - 6) + 2 or (6 - 4) + 0 or (6 - 8) + 4. All of these expressions simplify to 2.
Thus, this can be the expression asked.
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Man made chemicals have decreased the amount of which important gas?
Answer:
Ozone
Explanation:
When the sun impacts weather, an interaction with the __________ takes place.HELP ME!!!!
atmosphere
biosphere
geosphere
hydrosphere
Answer:
hydrosphere
Explanation:
Answer:
Hydrosphere :)
Cholesterol is needed to build cell membranes.
What is cholesterol?
Answer:
Cholesterol is a type of lipid (or fat) that, among other important functions, builds cell membranes in the body. While some cholesterol is obtained through diet, the body synthesizes most of it.
Answer:
Cholesterol is a lipid on the cell membrane that adds stability to the cell membrane and helps make it selectively permeable
Explanation:
What name is given to a factor which is preventing any increase in photosynthesis?
Answer: A limiting factor
Explanation: A limiting factor is simply anything in short supply that prevents photosynthesis occurring at its maximum rate. Three factors can limit the rate of photosynthesis: light intensity, carbon dioxide concentration and temperature.
Any factor that prevents any increase in photosynthesis is known as a LIMITING FACTOR.
In photosynthesis, a limiting factor is defined as a factor/agent that constrains photosynthetic activity.The most important factors capable of limiting the rate of photosynthesis include light, carbon dioxide (CO2) level and temperature.For example, photosynthesis cannot take place without light, which is absorbed by chlorophyll pigment molecules to start photosynthesis.In conclusion, any factor that prevents any increase in photosynthesis is known as a LIMITING FACTOR.
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Which description identifies a factor that influences the flow of water through the plasma membrane of a human cell?
A. The size of the phospholipids and proteins composing the plasma membrane
B.the concentration of solutes on either side of the plasma membrane
C.the presence or absence of a cell wall outside the plasma membrane
D.the number of contractile vacuoles on the surface of the plasma membrane
Answer:
A
Explanation:
Osmosis refers to the movement of water molecules across a selectively permeable membrane. During this process, water molecules move from an area of high concentration to an area of lower concentration.
A factor that influences the flow of water through the plasma membrane of a human cell is the concentration of solutes on either side of the plasma membrane (Option B).Osmosis is a type of passive transport mechanism that does not require energy to occur.During osmosis, water diffuses through a selectively permeable membrane from an area of high water concentration to an area of lower water concentration.In an isotonic cell, the concentration of solutes and water molecules is equal on both sides of the plasma membrane.In conclusion, a factor that influences the flow of water through the plasma membrane of a human cell is the concentration of solutes on either side of the plasma membrane (Option B).
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How is a recessive allele different from a dominant allele?
Answer:
A recessive allele isn't shown in the phenotype, but a dominant allele is shown in the phenotype.
Sorry, I don't remember much.
WHAT IS ATP?
pls real answers .
Answer:
ATP is a Adenosine triphosphate
(Chemical compound )
Adenosine triphosphate is an organic compound and hydrotrope that provides energy to drive many processes in living cells, e.g. muscle contraction, nerve impulse propagation, condensate dissolution, and chemical synthesis.
Explanation:
Hope it help.
Are tyere any mammalian cells that would be a good source for dividing cells?
Answer:
Explanation:
This question appear wrong. Cells do not divide other cells as cells have the ability to undergo individual cell division as seen in cell cycle. However, there are some factors that could lead to increased cell division; factors such as cancer and viral infection can lead to increased division of certain cell types.
There is also a cell organelle present in mammalian cells that facilitates the division of a cell - this organelle is known as centriole. Centrioles do this by assisting in the separation of chromosomes during the mitotic phase of the cell cycle.
HELP ME PLEASE!!!!!!!
Answer:
I think its the first one but I'm not sure
Answer:
Its the first one
Explanation:
exhale, cell respiration
Which of the following would be true when comparing plants in the desert and rainforest?
A. Plants in the desert would have an increased number of stomata compared to rainforest plants.
B. Plants in the desert would have a decreased number of stomata compared to rainforest plants.
C. Plants in the desert would have an increased number of mitochondria compared to rainforest plants.
D. Plants in the desert would have a decreased number of stomata compared to rainforest plants.
Answer:
A.Plants in the desert would have an increased number of stomata compared to rainforest plants.
Explanation:Stomata are composed of a pair of specialized epidermal cells referred to as guard cells (Figure 3). Stomata regulate gas exchange between the plant and environment and control of water loss by changing the size of the stomatal pore.
1. Which of the following is a characteristic associated with an organism's niche but not with its habitat?
a. climate
b. soil quality
c. place in the food web
d. location within the ecosystem
A characteristic that is associated with an organism's niche but not with its habitat is the place in the food web. Thus, the correct option for this question is C.
What is Habitat?Habitat may be defined as a type of natural environment for which a particular species is best adapted due to natural selection. In a more simple sense, habitat may also be characterized as an area where the basic demands of an organism are fulfilled like food, space, and mating partner.
According to the context of this question, a pace in the food web determines the position and the type of food that an organism naturally eat or consume. As it connects the organisms with the source of energy.
But in reality, it does not describe any characteristics of the habitat to which a particular organism belongs. This is because the food web is the pictorial representation of organisms on the basis of their food habit and nature.
Therefore, a characteristic that is associated with an organism's niche but not with its habitat is the place in the food web. Thus, the correct option for this question is C.
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What effect will first-degree burns most likely have on the upper layer of the skin?
Answer:
First-degree burns affect only the epidermis, or outer layer of skin. The burn site is red, painful, dry, and with no blisters. Mild sunburn is an example. Long-term tissue damage is rare and usually involves an increase or decrease in the skin color.
Explanation:
hope this helps
How do the light-dependent reactions relate to the Calvin cycle?
3 points
Hemorrhagic disease at birth causes internal bleeding which eventually
results in prolonged wound healing in newborns. Which of the following
vitamins do these newborns lack at birth? *
Vitamin A
Vitamin C
Vitamin D
Vitamin K
Answer:
it's vitamin D
Explanation:
i looked it up on Google
WILL GIVE BRAINIEST!! What is the following image an example of?
Abiotic factors
Climax
community
Protist
Pioneer Species
my question is here
Answer:bpojgf
Explanation:Dujdjnn
Answer:
um ok
Explanation:
Yes clearly your question is there.
explain how the structure of a cell´s membrane is related to its function.
Answer:
The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.
The structure of cell membrane helps in being selectively permeable that play a major role in regulating the entry and exit of molecules into and out of the cell.
The cell membrane is a biological membrane that makes the barrier between the interior of all cells and the outside environment. It is composed of a phospholipid bilayer with embedded proteins.
Due to phospholipid bilayer that has hydrophilic heads toward outside and intercellular matrix and hydrophobic tails in the middle, it is selectively permeable to ions and organic molecules:
It forms a physical barrier between the cell and the external environmentselected necessary molecules to pass through itregulates the entry and exit of molecules into and out of the cell. permits the entry of vital molecules like water, oxygen and amino acids, glucose into the cellthese molecules are crucial for various life processesmetabolic waste products are expelled through the cell membrane.it provides signals from one cell to another.Thus, the major function of cell membrane is due to its structure.
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What are the correct answers?
Answer:
2 is 700 because it wants the total distance so we r gonna add 400+300=700
3 is change in velocity
Explanation:
The amazing variety of living things in a region or on our whole
planet is called_________?
Answer:
The amazing variety of living things in a region or on our whole
planet is called biodiversity.
Explanation:
Biodiversity basically refers to the whole system of different living things in an environment and it has many different groups and kingdoms where the living things are grouped according to their characteristics.
Lucy and Jim have been married for 5 years and have decided they would like to try to have a child. However, a rare genetic disorder runs in both or their families, so they decide to go to a genetic counselor to determine the chances that their future child will be affected. The disease achondrogenesis 1a affects the ability of proteins necessary for bone and cartilage development to be modified and packaged properly after leaving the endoplasmic reticulum. The results are devastating. Individuals with this disorder are often stillborn or die soon after birth from respiratory failure. Fortunately, after doing a genetic screening, the genetic counselor determined that while Jim is a carrier for this autosomal recessive disorder, Lucy is not. Therefore, if they do have a child it is unlikely that their child will be affected. Which organelle has been compromised
Answer:
The Golgi complex is compromised
Explanation:
The Golgi complex helps in the process of synthesis and packaging of proteins and lipids, especially those proteins that are for exportation. The organelle´s function is to manage the recently synthesized proteins, to transform them, and to export them to other places.
Different proteins are synthesized in the endoplasmic reticulum and sent to the Golgi complex in vesicles, where it happens the final association of carbohydrates with proteins. Finally, protein is transported from the Golgi complex to its final destiny. Proteins destined to a certain place are packaged all together in the same vesicle and sent to the target organ. In the case of membrane proteins, they are packaged in vesicles and sent to the cell membrane where they get incrusted.
By being affected by the achondrogenesis 1a, the Golgi complex loses its functions and is incapable of finishing the protein synthesis and transport process, affecting other cells and their functions.
Which of these choices is the cytoskeleton's main structure? It provides support, structure, and
holds the organelles in place.
A. Phospholipids
B. Microtubules
C. Ribosomes
D. Cilia
The cytoskeleton's main structure that provides support, structure, and holds the organelles in place is microtubules and the correct option is option B.
Microtubules are the main structure of the cytoskeleton. They are composed of tubulin protein subunits and play a crucial role in providing support, structure, and maintaining the shape of the cell.
Additionally, microtubules are involved in various cellular processes, including cell division, intracellular transport, and the positioning of organelles within the cell. They form a dynamic and flexible network that contributes to the overall stability and organization of the cell's interior.
Thus, the ideal selection is option B.
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describe how the ancestors of whales moved from the land to the sea.
Answer:
To swim, they move their tails up and down, rather than back and forth as fishes do. This is because whales evolved from walking land mammals whose backbones did not naturally bend side to side, but up and down.
Explanation:
Help meeeee please :(
Answer:
1 - D
2 - G
3 - I
4 - E
5 - A
6 - H
7 - B
8 - F
9 - J
10 - C
PLEASE HELPPPPP Im almost out of time
Answer:
B. The moon revolves around the sun.
Cows host a variety of bacteria in their bodies. Many of these bacteria live in
their digestive tracts and help them digest the grasses they eat. In turn, the
bacteria receive a place to live and a plentiful food supply. What kind of
relationship is this?
1.commensalism
2.Amensalism
3.Mutualism
4.parasitism
Answer:
Commensalism
Explanation:
Commensalism, in biology, a relationship between individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter.
Include real-world examples of the different types of stimuli.
if you get it from somewhere please put a link :) thank you
Answer:
Hy u could go to this link it will help u Study.com
Explanation:
How u have to do is copy and paste Include real-world examples of the different types of stimuli it well show up!
Please answer this as fast
Answer:
Skeletal muscles
Explanation:
there are 700 skeletal muscles in our body which make half of our body.
What is a Codon? What does it code for?
Explain how surface mining affects plant life
Answer:
Surface mining destroys all plant life in the area the mine occupies. Plants living in the area where the surface mine is to be located are removed. ... All three types of mines cause some damage to the environment.
Explanation:
IF THIS HELPS MARK AS BRAINLIST
Surface mining destroys vegetation and affects soil strata. Mining disrupts to topsoil microorganisms. Reclamation operations that dilute topsoil with subsoils can degrade soil.
What is surface mining?Surface mining is a type of mining in which the soil and rock covering the mineral deposits are removed. It's the other way to mine underground. The rock on top is left in place, and the needed minerals are taken out through shafts or tunnels.
Surface mining can hurt fish and aquatic resources by causing erosion and sedimentation, drying up wetlands, rerouting and channelizing streams, and putting toxic chemicals into the surface water and aquifers.
This will further disrupt plant life on surface.
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I need help plsss & fasttt
Answer:
C?
Explanation: