Answer:
Choice A
Explanation:
If there is 20 snakes living in an area of desert that is 20 square kilometers that means we should get how many snakes are in 1 km and that's only 1 because you would do 20/20.
well anyone here likes biology than solve this
Answer:
3383
Explanation: sorry if its not right...Have a good day
Enzymes like pepsin are found in the stomach and act on food to break it down into simpler substances. This is an example of a — chemical change. stimulus. physical change. reflex.
Answer: Chemical Change
Explanation:
Enzymes like pepsin are found in the stomach and act on food to break it down into simpler substances. This is an example of a —
Chemical change
Where do most earthquakes occur. Along plate boundaries. Where convergent boundaries are. Where divergent boundaries are
Earthquakes most ofter occur at mid-ocean ridges
two pieces of oceanic crust are moving away from each other. Some earthquakes at divergent boundaries occur in the middle of continents in rift zones.
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 many chromosomes are represented by these eight strings of beads shown in the picture?
Answer:
4
Explanation:
How do ocean currents affect weather in areas close to shore?
Answer:
Warm and cold ocean currents can affect the climate of an area along the coast if the winds blow in from the ocean. Warm ocean currents heat the air above the water and carry the warm air to the land, increasing the temperature of the coastal region.
Explanation:
hope it helps
Answer:
Warm and cold ocean currents can affect the climate of an area along the coast if the winds blow in from the ocean. Warm ocean currents heat the air above the water and carry the warm air to the land.
Explanation:
Hope this helped :)
Explain how bacteria become resistance to
antibiotics, supporting Darwin's theory..
Answer:
They adapt over time to the antibiotics.
Explanation:
Because of Darwin's theory of natural selection, the bacteria that are resistant to antibiotics will multiply whereas the ones that don't survive will die off. Over time, the species will only consist of those bacteria that are resistant, because they are the ones that survived. Hope this helps!
Answer:
Since bacteria reproduce at a very fast rate, they can also develop mutations; creating new strains. Some bacteria might become resistant to certain antibiotics because of these mutations. The evolution of the bacteria supports Darwin's theory of evolution !
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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Which is not one of the four nitrogenous bases in DNA?
a) adenine
b) guanine
c) thymine
d) benzene
Answer:
D
Explanation:
I hope this is correct and have a great day
Answer:
The nitrogrnous that is not found in DNA is (D)Benzenen
Explanation:
To make a DNA molecule you need: nitrogenous bases—there are four of these: adenine (A), thymine (T), cytosine (C), guanine (G) carbon sugar molecules. phosphate molecules.
The scale for humidity has a minimum value of 40%. However, if you could change the humidity to zero and set a 70°F
difference between temperatures, would precipitation occur? Why or why not? What type of weather would you expect?
Answer:
precepetation ont occur
Explanation:
Because 70%F means it High temperatureand is also high we feel sweating.
Why is cell division important for unicelluar organisms? For multicelluar organisms?
Answer:
Don’t waste points on this I found this answer on google
Multicellular organisms need cell division to grow and to replace dead or damaged cells and unicellular cell division is the only way single-celled organisms can reproduce.
Explanation:
HELP ASAP!!!!!!
What is the first step of a virus’s life cycle?
A
replicating
B
assembling
C
attaching to a host
D
entering a cell
Answer:
The answer is D I am pretty sure plz help me with the question
Explanation:
A tomato plant grew 6 inches the first week, before slowing to an average of 0.5 inch per day. How many days will it take before the tomato plant reaches a height of 16 inches? Use the equation 16 = 0.5d + 6
Answer:
C-Attaching to a host
Explanation:
It wouldn’t be entering the cell because I’ve learned that it needs to attach to a host first, and it wouldn’t be replicating because it needs to be in the host before it starts. Which leaves assembling and attaching. It is attaching and not assembling because assembling is one of the last ones, second to last step, so the answer would be attaching.
When a molecule other than water moves from an area of high concentration to an
area of low concentration with the use of a protein it is an example of what type of
passive transport.
Osmosis
Facilitated diffusion
Active Transport
Diffusion
Answer:
Osmosis
Explanation:
Osmosis is the spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides.
This direction is from high concentration to low concentration, this will create equilibrium.
According to the big bang theory, the universe is continually getting
larger and cooler.
larger and warmer.
smaller and cooler.
smaller and warmer.
larger and cooler I think or larger and warmer
During cellular respiration what is the direct source of the energu used in the cells of consumers?
Answer:
Consumers use chemical energy from the chemical bonds within organic molecules such as carbohydrates, lipids, and amino acids.
Explanation:
Heterotrophs are consumers; they ingest or absorb organic matter (lipids, carbohydrates, proteins, etc.) made by autotrophs or producers for their energy consumption. Autotrophs include plants, bacteria, and other photosynthesizing organisms, while heterotrophs include animals, fungi, protists, and bacteria.
Heterotrophs obtain energy from food through the process of cellular respiration. For instance, during aerobic respiration in mitochondria, they break down sugars in the form of glucose into carbon dioxide and water to obtain energy in the form of ATP or adenosine triphosphate.
aerobic respiration: C6H12O6+ 6 O2 → 6 CO2 + 6 H2O + ≅38 ATP
glucose+ oxygen → carbon dioxide+ water+ energy
Which of the following features is likely to form where two tectonic plates push toward each other?
a
Ocean shoreline
b
Mountain range
c
Mid-ocean ridge
d
Rift valley
Answer:
B
Explanation:
When two tectonic plates move toward each other it is called a convergent boundary. As a result of a convergent boundary you get things like mountains and volcanoes.
The most commonly used feature is to form Mountain range.
What is tectonic plates?The Sun, a 4.5 billion year old yellow dwarf star and the center of our solar system, is a hot, burning ball of hydrogen and helium. It is the only star in our solar system and is located approximately 93 million miles (150 million kilometers) from Earth.
The Sun may appear to be a constant source of heat and light in the sky from Earth's perspective. However, the Sun is a dynamic star that changes frequently and radiates energy into space. Heliophysics is the study of the Sun and how it affects the rest of the solar system.
The largest body in our solar system is the Sun. About 865,000 miles are in its circumference.
Therefore, The most commonly used feature is to form Mountain range.
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How would an ecosystem be removed if fungi were removed from the environment?
A. There would be an increase in plant life.
B. Nutrients would not be recycled back into the environment.
C. Animal life would increase.
D. All factors would stay the same.
Answer:
B
Explanation:
Answer:
B. Nutrients would not be recycled back into the environment.
Hope This Helps!
Which of the following is NOT evidence for Endosymbiotic Theory?
Answer:
mitochondria and chloroplasts can not survive outside of the cell
Explanation:
The statement that mitochondria and chloroplasts cannot survive outside of the cell is not a supporter of the endosymbiotic theory. So the correct option is A.
What is the endosymbiotic theory?
It's possible that eukaryotic cells originated when several cell types fused to form one. They started coexisting in what are known as symbiotic partnerships. The endosymbiotic theory describes how this may have occurred. One creature that resides inside of another is known as an endosymbiont. Your own cell and all other eukaryotic cells are animals formed of other species' components.
Both the chloroplast and the mitochondrion are organelles that were formerly free-living cells. They were prokaryotes that were ensconced within other cells (host cells). They may have become a part of the other cell by being eaten (a process known as phagocytosis), or they could have been parasites living inside the host cell.
The inner cell lived and flourished with the host cell rather than being ingested by or destroying it. It resembles a landlord and a renter in certain ways. The organelle pays rent by producing energy that the host cell may consume, and the host cell offers a cozy and secure home.
The organelle and the host cell have developed together throughout time as a result of this long-ago event. The two are now inextricably linked. Even while they now work as a single organism, if we look closely, we can still see traces of the organelles' former lives as free-living entities.
Therefore the correct option is A.
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which part of the cell nucleus enables features to be passed from one generation
Which one of the following will increase the size of a population?
A) Increased death rate
B) Decreased immigration
C) Decreased death rate
D) Decreased birth rate
The amount of radiation that one person is exposed to throughout their life can negatively effect their
_________ rate.
A) fertility
B) death
C) longevity
D) birth
The shape and function of a protein molecule is ultimately determined by_______ because this is where protein synthesis begins.
Answer:
The primary structure of a protein — its amino acid sequence — drives the folding and intramolecular bonding of the linear amino acid chain, which ultimately determines the protein's unique three-dimensional shape.
Explanation:
Answer:
its amino acid sequence and/or rna?
Explanation:
"The primary structure of a protein — its amino acid sequence — drives the folding and intramolecular bonding of the linear amino acid chain, which ultimately determines the protein's unique three-dimensional shape. ... Folded proteins are stabilized by thousands of noncovalent bonds between amino acids." - Google.
Nitrogen is important for _____.
healthy bones and teeth
oxygen transport in the blood
respiration
amino acids and DNA
Answer:
amino acids and DNA is C
Plz help me with this.
Conduction, because the heat travels through the material without the material being moved.
What happens to the glucose that is made during photosynthesis?
Answer:
The sugars produced by photosynthesis can be stored, transported throughout the organism, and converted into energy which is used to power all cellular processes. Respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy.
Explanation:
Ground tissue in plants consists of highly specialized cells that perform certain functions. What is one function of the ground tissue found inplants?
Explanation:
Ground Tissue FunctionParenchyma Tissue Photosynthesis Food storage Healing and tissue regenerationCollenchyma Tissue Support in young stems, roots, and petiolesSclerenchyma Tissue * Rigid support Protectionhope this helps1
Cells do which of the following? (check all that apply)
A reproduce
B
take in nutrients
c get rid of wastes
D
use energy
Answer:
A can be right answer because reproduction is completely based on cells where as others r n{t primary function
All of the above options are functions carried out by cells including reproduction, nutrient absorption, excretion and energy utilization.
What are the functions of cell?Cells take in nutrients from meals, turn those nutrients into energy, and carry out specialized functions while doing so. They are responsible for providing structure for the body. Additionally, cells are capable of duplicating themselves and contain the hereditary material of the organism. There are numerous components that make up a cell, each of which has a specific purpose.
Cells must execute metabolic activities to survive, but some byproducts can be poisonous or fatal if they accumulate. Excretion removes cell wastes.
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Which product is a source of energy that plants use to grow?
Answer:
photosynthesis
Explanation:
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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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:
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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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