Answer:
Bite it, if it is soft then its gold
also if it is not shiny
Explanation:
How can water be monitored to assure it is safe for human consumption?
Answer:
By inspecting it under a microscope or boiling it to make sure no dangerous bacteria are inside.
Explanation:
attributes of groups that have been retained from a common ancestor are referred to as what
Answer:
Ancestral
Explanation:
What of the following organisms transforms radiant energy into
chemical energy?
O Butterfly
O Grass
O Mouse
O Deer
Answer:
B) Grass
Explanation:
Grass uss=es the radiant energy from the sun and turns it into chemical energy for food.
Choose all the answers that apply.
The cell membrane _____.
A.) is not a true organelle
B.) contains and protects the cell
C.) is made of a double layer of phospholipids
D.) contains proteins that allow materials to pass through
Answer:
C and B
Explanation:
Which is more efficient in terms of producing ATP from glucose?
1) Anaerobic respiration
2) Aerobic respiration
Answer:
aerobic
Explanation:
Aerobic respiration produces 38ATP instead of 2ATP from anaerobic respiration
What are the two major parts of a eukaryotic cell?
Answer:
Two major parts of a eukaryotic cell. (1) Nucleus. ... Cytoplasm.Explanation:
Which of the following is not a pure substance?
Answer:
Examples of materials that are not pure substances include gravel, your computer, a mixture of salt and sugar, and a tree.
Explanation:
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Which types of rocks can become metamorphic rock?
both igneous and metamorphic rock
clastic sedimentary rock
both igneous and sedimentary rock
clastic or chemical sedimentary rock
Answer:
both igneous and metamorphic rock I believe
Explanation:
I I learned this in fourth grade I'm not sure if I'm correct if I remember correctly then it's these two sorry if it's wrong also tell me if it's wrong I'll try to tell you the right answer if it is wrong okay
Answer:
igneous, sedimentary, metamorphic all can
Explanation:
In meiosis when the cells divide again, what happens to the number of chromosomes?
1. Which of the following gases is need by plants?
Answer: Carbon dioxide
Explanation:
To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight. for photosynthesis. Carbon dioxide enters through tiny holes in a plant's leaves, flowers, branches, stems, and roots. Plants also require water to make their food.
The hydrogen used to produce ATP in the light reactions of photosynthesis comes from ___.
a. Splitting water
b. Carbon fixation
c. Movement of hydrogen ions through the membrane
d. The burning of sugar molecules
Answer:
c.
Explanation:
The diagram below shows the exchange of carbon dioxide (CO2) and oxygen (O2) between a cell and the blood flowing through a capillary.
In this diagram, the molecules of CO2 (represented by x’s) are moving from an area of--
Answer:
From an area of higher concentration to an area of lower concentration.
Explanation:
The molecules of CO2 are moving from an area of higher concentration to an area of lower concentration. Carbondioxide is produced as waste product in the cell during the process of respiration. This carbondioxide gas is loaded in blood cells because in the cell, concentration of carbondioxide gas is higher while on the other hand the concentration of carbondioxide is lower in the blood cells. This carbondioxide gas exchange in the lungs with oxygen which is required in the process of respiration for the production of energy in the form of ATP molecules. So from the conclusion we can say that CO2 moves from an area of higher concentration to lower concentration.
Thicker, least dense crust
Answer:
what is the question?
Explanation:
If you comment a question I will try and answer.
7. Texture of sedimentary rock refers to
whether the rock
SC.7.6.6.2
-cooled slowly or quickly.
-feels smooth or rough.
-has coarse or fine grains.
-is foliated or nonfoliated.
Answer:
C. Has coarse or fine grains.
Explanation:
Robert Hooke used a microscope to see that cork looked like it was made of little boxes. Anton van Leeuwenhoek saw tiny cells swimming in pond water. Which part of cell theory do these observations best support?
A.Cells come from other cells.
B.All organisms are unicellular.
C.Cells are the basic unit of life.
D.All organisms are multicellular.____
23. Which of the following characteristics do all unicellular organisms share?
A.
All unicellular organisms reproduce.
B.
All unicellular organisms have a nucleus
C.
All unicellular organisms eukaryotes
.D.
All unicellular organisms prokaryotes.____
24. Which term describes “one or more cells that carry out all of the processes needed to sustain life”?
A.DNA
B.organism
C.organelles
D.cytoplasm____
25. DNA is genetic material that provides instructions for all cell processes. Where is the DNA located in prokaryotes?
A.in the nucleus
B.in the cytoplasm
C.in the flagella
D.in membrane-bound organelles
Answer:
just tryna get points lol
Activity
Fish are sensitive to many environmental variables: dissolved oxygen, light, temperature, pH, clarity of water, food supply, presence of predators, etc. Fish will be attracted to different locations in a lake, based on its mix of variables.
Imagine you want to conduct an experiment to understand how just one of these variables differs in a local lake, depending on its depth. This lake reaches a depth of 17 meters. For this activity:
Pick a variable that might change as you go deeper in the lake on a given day.
Do a little research on that variable to determine how you might measure it in a lake.
Use the template below to outline an experiment to investigate this variable in the lake by depth. For each part, simply answer the question in parentheses to create your outline.
Type your response to each field in the space below that field:
Title: (Enter a brief, descriptive title. Hint: Sometimes it’s best to do this las
Complete question:
Fish are sensitive to many environmental variables: dissolved oxygen, light, temperature, pH, clarity of the water, food supply, presence of predators, etc. Fish will be attracted to different locations in a lake, based on its mix of variables.
Imagine you want to conduct an experiment to understand how just one of these variables differs in a local lake, depending on its depth. This lake reaches a depth of 17 meters. For this activity:
Pick a variable that might change as you go deeper in the lake on a given day.
Do a little research on that variable to determine how you might measure it in a lake.
Use the template below to outline an experiment to investigate this variable in the lake by depth. For each part, simply answer the question in parentheses to create your outline.
Type your response to each field in the space below that field:
Title: (Enter a brief, descriptive title. Hint: Sometimes it’s best to do this last.)
Purpose: (Why are you doing this experiment?)
Hypothesis: (What do you predict from this experiment and why?)
Procedure/Method: (How will you specifically carry out your experiment to test your prediction?)
Observations: (What specifically would you look for and record?)
Data analysis: (With this kind of data, what would be the best way to present it?)
Conclusion: [No need to enter anything here for now.]
References: (List any references you used to design the experiment. Note that for a full experiment write-up you’d also list any references you used while carrying out the experiment or in analyzing your results.)
Answer and Explanation:
Variable: dissolved oxygen
Title: Oxygen variation as a water quality indicator.
Purpose: To study how dissolved oxygen varies with depth
Hypothesis: The percentage of dissolved oxygen will decrease as depth increases.
Procedure/Method:
Selection of sampling spots, according to the morphometry of the lake, different depth, water currents inputs and outputs, aquatic vegetation, and lake type of use. In each spot water samples will be taken using a Niskin bottle. The sample will be taken from different depth: 5 meters deep, 10 meters deep, and 15 meters deep (photic zone). Dissolved oxygen (DO) will be measured in each sample, by using a multiparameter sensor. In a field sheet to evaluate the parameter, the %DO by site and depth will be recorded.Observations:
%DO in each site and depth will be recorded in order to analyze how it varies with depth.
Data analysis:
According to different indicators of water quality in a lake, the observed %DO will be compared and analyzed to evaluate the sanity state of the lake water. Example of valuation scale,
NORMAL index: Oxygen concentration in the water column is found to be sufficient for the fish survival
REGULAR: Decrease in oxygen concentration at greater depth, values below saturation in the background
CRITICAL: Null oxygen concentration in all or part of the column profile of water. Probable fish mortality events.
According to the taken data, observations on the study site will be taken, such as the variation in oxygen concentration as it gets deeper, until reaching hypoxia level, where fishes can not survive. Data can be presented in tables and in graphs, in both cases comparing sampling sites and depth, making a focus on the valuation scale.
Conclusion:
Association of the oxygen variation with the sanity state of the lake, microbiology decomposition processes at different depths, eutrophication state, among others.
References:
- Quality monitoring in San Roque waters. INA-CIRSA. 02/26/2013
- Quality Monitoring Program of Water from Los Molinos Reservoir. Articulation and Institutional Synergy for the Water Resources Preservation. Cossavella A, Bazan R. 2018
- Limnology course. Córdoba National University, UNC, 2018
10. Which structures are involved in cell movement?
Answer:
Cilia and flagella are the two structures cells use of their movement and locomotion.
Cilia and flagella are projections from the cell. They are made up of microtubules.
They are motile and designed either to move the cell itself or to move substances over or around the cell.
A newly formed natural lake most likely receives water from glaciers or mountain
streams and may not have a large supply of nutrients from plants. This type of
lake is
bitrophic
eutrophic
polytrophic
oligotrophic
Answer:
If i'm not mistaken the answer is eutrophic
Explanation:
The algae has no plants to feed on and in turn makes them feed of oxygen and makes less suitable for any type of plant life.
Please help ! I’ll mark brainliest
Answer:
the sun
Explanation:
Budding is a type of asexual reproduction. Which of the following is an disadvantage for asexual reproduction?
what element has 8 neutrons and 7 electrons
during photosynthesis, what is the source of the carbon i the sugar that is created
Answer:
Plants get the carbon from the air that humans exhale. They breath it in and use it for photosynthesis.
Explanation:
Took biology last year.
During photosynthesis, what is the source of the carbon is the sugar that is created is carbon dioxide in the air.
Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.Carbon dioxide serves as the source of carbon, and it enters the photosynthetic process in a series of reactions called the carbon-fixation reactions (also known as the dark reactions).Stages of photosynthesis:
(i) Absorption of light energy by chlorophyll.
(ii) Conversion of light energy to chemical energy and splitting of water molecules into hydrogen and oxygen.
(iii) Reduction of carbon dioxide to carbohydrates.
Learn more:
brainly.com/question/9498584
10. In the process of photosynthesis, chlorophyll serves as ___.
a. An end product
b. A raw material
c. An energy converter
d. A hydrogen acceptor
Answer:
c. an energy converter
Explanation:
Which purpose does a cell membrane play in eukaryotic cells?
The cell membrane controls the movement of substances in and out of cells and organelles. In this way, it is selectively permeable to ions and organic molecules.
please help me I will give a briainliest to the first person to answer
Why do kids look like their parents?
Answer:
The reason why kid look like their parents is because of traits. for example, a Beagle and a Boston Terrier breed,when the puppies are born, the puppies look like their parents. These traits include size, shape, color, etc. once again for example, one of the puppies is the size of a Boston Terrier, and the look of a Beagle. I hoped this helped btw :3
Explanation:
i did say this in a comment, i'm just making sure that everyone knows about this in case they need it for something like this!
The population in a 50 square mile area is 200 people. What is the population density?
Answer:
[tex]\rho _{population}=4\frac{people}{mi^2}[/tex]
Explanation:
Hello.
In this case, since the population density is computed by dividing the amount of people by the space (area) where they are in:
[tex]\rho _{population}=\frac{people}{area}[/tex]
For 200 people living in a 50-mi² area, the population density is:
[tex]\rho _{population}=\frac{200people}{50mi^2}\\\\\rho _{population}=4\frac{people}{mi^2}[/tex]
It means that 4 people live per square mile area.
Best regards.
Organisms that rely on other living things for food are called what?
Answer:
heterotroph
Explanation:
I asked google
particles is found in the nucleus of an atom
Answer:
protons and neutrons
Explanation:
Protons and neutrons have a positive and neutral charge, respectively. They are in the nucleus, while the negative electrons orbit the nucleus.
Answer:
Protons, neutrons, electrons
Explanation:
If you're asking about subatomic particles.
PLEASEEE HELPPPP I WILL MARK YOU AS BRAINLIST
Answer:
I know its either A or C
so I would go with C
Explanation:
Brainlist if right?
