Answer:
About 14.75 days
I need help with this fast plzzz
Answer:
Explanation:
6. He was investigating a mold growing in Staphylococcus culture dishes, that may have been killing bacteria.
7. He hypothesized that the mold was producing a chemical that killed the bacteria.
8. He tested the hypothesis by growing the mold in a broth then transferring it into a bacteria culture.
9. After putting mold into a culture with bacteria in it, the bacteria then died.
10. Antibiotics
In what type of climate do trees produce narrower rings?
cool and dry
warm and wet
cool and wet
warm and dry
Answer:
Cool and dry
Explanation: Trees tend to be sensitive to climates, so when the conditions are good the trees grows faster which results in wider growth rings and in poor conditions the tree grows slower which results in it laying down less tissue and therefore a narrower ring size. Drought and a blizzard can also cause narrower ring too. Actually, a cool way to find out if the climate conditions were good is to measure the rings of a tree every month each year. If the rings were consistently the same then you know the climate stayed pretty much the same and etc.
Select all of the arrows in the model that represent the movement of nitrogen from an abiotic system to a biotic system.
Answer:
Nitrogen compounds in the soil ---> Plants
Nitrogen compounds in the soil ---> Denitrification bacteria (convert nitrogen compounds to N2)
Nitrogen in the atmosphere ---> Nitrogen fixing bacteria (convert N2 to nitrogen compounds)
Explanation:
This model in the image section is portraying the nitrogen cycle, which involves the transfer of nitrogen within biosphere, atmosphere, and lithosphere etc. The abiotic components of this model are the non-living parts while the biotic components are the living parts.
In this model, the movement of nitrogen from abiotic or non-living component of an ecosystem to the biotic or living component is as follows:
Nitrogen compounds in the soil ---> Plants
Nitrogen compounds in the soil ---> Denitrification bacteria (convert nitrogen compounds to N2)
Nitrogen in the atmosphere ---> Nitrogen fixing bacteria (convert N2 to nitrogen compounds)
Chad drew a diagram to compare animal cells and bacterial cells.
Which label belongs in the area marked X?
nucleus
DNA
cell wall
ribosomes
Answer:
It’s nucleus
Explanation:
have a good day;)
Answer:
1, nucleus.
Explanation:
2. If you cannot see most cells with just your eyes, how can you see a unicellular organism?
Answer:
Microscope
Explanation:
Answer:
microscope
Explanation:
Which type(s) of muscle tissue cells are organized into sarcomeres?
skeletal
cardiac
smooth
What causes cells to become specialized??? ✨
Answer:
Cell differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression. Gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a cell functions.
Explanation:
Hope that helped if it did please give me brainiest Thanks :3 <333333
2. Examine the arm bones of the two skeletons. Was Grandmother right- or left-handed? How
about Grandfather?
Answer:
Grandmother was Left-handed
Explanation:
I can tell this because she had thicker upper and lower arm bones on her left arm, compared to her right arm, telling me her left arm was dominant.
ANSWER FAST AND THIS IS NOT A HIGHSCHOOL THING IT IS MIDDLE SCHOOL <3
Which example is ONE specific form of simple diffusion?
A: If water moves into a cell by osmosis, it is moving into an area of higher solute concentration.
B: If water moves into a cell by diffusion, it is moving from an area of higher concentration to an area of lower concentration.
C: If water moves into a cell by osmosis, it is moving into an area of higher water concentration.
D: If water moves into a cell by diffusion, it is moving into an area of higher solute concentration.
Answer:
c
Explanation:
Lipids are...
A. Protein molecules
B. Similar to water molecules
C. Polar molecules
D. Nonpolar molecules
Answer:
The answer you are looking for is D.
Explanation:
Lipids are molecules that contain hydrocarbons and make up the building blocks of the structure and function of living cells. (non- polar molecules)
Lipids are fat molecules and are hydrophobic (water repulsive) in nature. Thus, option D is correct.
What are Lipids?Lipids are important biomolecules and are widely distributed in biological systems. Lipids are organic macromolecules.
Lipids are insoluble in water (polar) and require non-polar solvents mainly hydrocarbons for dissolution like petroleum, ether etc. Thus, non-polar in nature.
Lipids include array of molecules like fats, wax, steroids, vitamins (fat-soluble; A,D, E and K), hormones, oils etc and have diversified functions.
Lipids form an integral part of the cell membrane. It also surrounds membranous structures. It protects the cellular membranes by creating an insulating layer.
Lipids are essential for storing and conserving energy in mammalian body. It helps in metabolism of glucose by converting extra glucose to glycogen in adipose tissues.
Lipids also act as transport molecules in the body. Many lipids function as chemical messengers.
Therefore, Lipids play a pivotal role in living system.
Learn more about Lipids, here:
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Cohesion produces _____ tension as the water molecules hold tightly together.
When reading, what should you look for first?
The correct answer is :you should look first to the answers to your own questions.
is this correct? please help me
Answer:
It look good to me but I dont know for sure so we will see
Cytoskeleton has 3 functions?
Genetic information, color, movement
Gives cells their specific shape, severs as tracks, enables movement
It has NO function
Energy, shape and color
Answer:
I believe the answer is gives cells their specific shape, severs as tracks, enables movement
A mixture can be separated by all of the following EXCEPT
Filtration
Distillation
Sieving
A magnet
Evaporation
All are methods to separate mixtures
Answer:
All are methods to separate mixtures
Explanation:
A mixture consists of 2 or more substances that are mixed physically but not chemically. Hence, mixtures can be separated by any physical separation means which include but not limited to filtration, distillation, sieving, magnetization, and evaporation.
Filtration is usually used to separate suspended particles in a liquid using a membrane of a filter paper. Distillation is used to separate miscible liquids with varying boiling points by evaporating and condensing them back at their respective boiling points. Sieving is used to separate mixtures with varying particle sizes of individual components.
Magnetization is usually used to separate mixtures with, at least, one component with magnetic property. Evaporation is used to separate dissolved solids from liquids.
Hence, all the methods listed are used to separate mixtures.
Explain why grease on clothing will not come out with water alone.
Answer:
It forms water proof barriers so its insoluble in water
Where does the water enter the plant in photosynthesis?
Answer:
The water needed for photosynthesis is absorbed through the roots and transported through tubes to the leaf. The roots have a type of cell called a root hair cell. These project out from the root into the soil, and have a big surface area and thin walls. This lets water pass into them easily.
Explanation:
Hope this helps
Explain whether continuing to increase light intensity will increase the rate of photosynthesis. Please help!
Answer:
So in the case of a plant, a higher light intensity means more packets of light called “photons” are hitting the leaves. As you rise from low light intensity to higher light intensity, the rate of photosynthesis will increase because there is more light available to drive the reactions of photosynthesis.
Explanation:
If you continue to increase the intensity of light that a plant receives, what happens? The rate of photosynthesis increases with light intensity. The rate of photosynthesis decreases with light intensity. The rate of photosynthesis increases and then levels off.As light intensity increases (distance between lamp and plant decreases) the volume of oxygen (or the rate of bubble production) increases. This indicates that the rate of photosynthesis increases with light intensity.
How will wavelength affect the light-dependent reaction?
Answer:
The longer the wavelength, the less energy is carried.
Explanation:
Short, tight waves carry the most energy.
A white poster board looks white because the light waves are being ______ while a black poster board looks black because the light waves are being ________
A. refracted vs diffracted
B. absorbed vs reflected
C. transmitted vs reflected
D. reflected vs absorbed
Answer:
The answer is D. Reflected vs Absorbed
Explanation:
Black shirts get so hot because it's absorbing all light whereas white is colder because it's reflecting all light
Please mark Brainliest
Answer:
D. Reflected vs Absorbed
Explanation:
What is a gene? What is its purpose?
I
a student needs to find the density of a cube. each side of the cube measures 3 cm and the mass of the cube is 12g. what is the approximate density of the cube?
A. 0.4g/cm3
B. 2.25g/cm3
C. 4.0g/cm3
D. 36g/cm3
Answer:
Density = 0.4g/cm³
Explanation:
Given
Mass = 12 g
Length = 3 cm
Required
Determine the density.
To calculate density, we need volume.
Volume of a cube is:
Volume = Length ³
Hence:
Volume = (3cm)³
Volume = 27cm³
Density = Mass/Volume
Density = 12/27
Density = 0.4g/cm³ --- Approximated
Which four nutrients cycle through all of Earth's spheres and organisms?
Answer:
water, carbon, nitrogen, phosphorus, and sulfur cycles.
Explanation:
Biogeochemical cycles important to living organisms include the water, carbon, nitrogen, phosphorus, and sulfur cycles.
Where is the DNA located in a eukaryotic cell?
Answer:
It is located in the nucleus
Explanation:
Answer:
Explanation:
nucleus
The nucleus is particularly important among eukaryotic organelles because it is the location of a cell's DNA.
similarities between seemingly unrelated organisms can be explained by Darwin's theory that organisms come from common ancestors true or false
Answer:
false
Explanation:
Answer:
Actually, this is true
Explanation
I just took the test on edu
Which type of energy transformation is controlled by chloroplasts?
Lots of hydroxides (OH) will make a solution
A.acidic B. Basic C. Neutral
Answer:
B. Basic
Explanation:
Hydroxide (OH) is an anion with the chemical formula OH-. As the formula implies, it consists of an oxygen atom and a hydrogen atom. The more electronegative oxygen atom shares electrons with the less electronegative hydrogen atom via covalent bonding.
Hydroxide ion dissolves in water to form a very strong base, hence, an aqueous solution that contains lots of hydroxides will be BASIC or ALKALINE. A solution with lots of hydroxide ions is a STRONG BASE.
what is crop fallowing?
Please reply fast I need to do my biology assignment !!!
Answer: A field, or several fields, are taken out of crop rotation for a specific period of time, usually one to five years, depending on crop. Fallowing soil is a method of sustainable land management that has been used by farmers for centuries in regions of the Mediterranean, North Africa, Asia and other places.
Explanation:
PLEASE HELP :) What is the difference between Gross Primary Production and Net primary production in simple terms? (If you could also provide an example I would really appreciate it.) Thank you for your time!
Answer:
Gross primary production (GPP) is the total rate at which material is produced and net primary production (NPP) is the rate at which material is accumulated in excess of respiration. In other words, NPP is GPP minus respiration. ... Net primary production is directly related to ecosystem conditions.
You are discussing earthquakes with your friends. One friend states that a magnitude 8.0 earthquake is twice as powerful as a 4.0 magnitude earthquake. Another friend states that it is actually 40 times more powerful. Another friend claims that it is 10,000 times more powerful. Which friend is more correct? Explain.
Answer:
The friend that says 8.0 is twice as powerful as a 4.0. Hope this helps