Answer:
A scientific investigation is a plan for asking questions and testing possible answers. A scientific investigation typically begins with observations. Observations often lead to questions. A hypothesis is a possible logical answer to a scientific question, based on scientific knowledge.
Explanation:
In which symbotic relationship does one organism benefit while the other organism is harmed?
Answer:
parasitic relationship is the answer
what is the importance of protease to life
Raj drinks a glass of water in his kitchen. The water is at room temperature, and Raj decides to make it colder by adding ice. Which of the following describes why the ice cubes will melt?
Answer:
Heat from the water moves into the ice.
Explanation:
The ice has more heat than the frozen ice cube, so it will melt it.
People who live in __________ are the most likely to be exposed to nitrate and phosphate pollution in surface and ground water.
A)
fishing villages
B)
rural farming areas
C)
mountainous areas with reduced oxygen levels
D)
urban industrial areas
Answer:
B) rural farming areas
Explanation:
Phosphate and Nitrate are two common pollutants that affect surface and ground water. They result mostly from the fertilizer used in farming operations. This is because fertilizer contains these nutrients to improve the fertility of the soil in which the crops are planted, however, they manage to get eroded into water bodies when it rains.
Due to that fact that most farming occurs in RURAL AREAS, people that live in rural farming areas are most likely to be affected by the effects of nitrate and phosphate pollution in their water bodies (surface and ground).
what part of plants do people use in making a house
They use logs of wood and it comes from the trunk of tree
The blood vessels that have the smallest diameter and consist of a single layer of simple squamous epithelial
cells so they may facilitate the exchange of substances are
Answer:
Capillaries
Explanation:
Capillaries are one of the three major blood vessels in humans (the other two being; veins and arteries). They are known to connect the arteries and the veins together in the circulatory system. Capillaries majorly function in the exchange of substances e.g oxygen, nutrients between the blood and tissues.
Due to their role in exchanging substances via diffusion, capillaries contain the simple squamous type of epithelial tissue, which helps them perform this function. Furthermore, capillaries are the smallest in diameter and most abundant in number of all blood vessels.
3. Are some molecules made of one kind of element?
Answer:
yh what he said
Explanation:
igneous rock determined 25 million year old plate movement transported 100,000 meters. How fast is plate moving?
Answer:
0.004 m/yr.
Explanation:
Hello!
In this case, since the velocity of any object is computed by dividing the travelled distance by the elapsed time, we obtain:
[tex]V=\frac{distance}{time}\\\\V=\frac{100,000m}{25,000,000yr}\\\\V=0.004m/yr[/tex]
It means that the plate moves 0.004 m every year.
Best regards!
water recycling??
give some sites for report writting..?
Answer genmill.com
Explanation:
what is the function of DNA, and why is it called the heritable material
Answer:
DNA is an information molecule.
Explanation:
WHAT IS THE FUNCTION OF DNA?
DNA stands for Deoxyribonucleic acid.
It allows the body to tell it how to make larger proteins. It contains 46 chromosomes.Chromosomes are 1 strand of DNA. (Imagine your hair. Your whole head of hair is like DNA, if you were to pull out 1 string of hair, it would be a chromosome.)WHY IS IT KNOWN AS A HERITABLE MATERIAL?
It is known as a heritable material because your parents pass their genes onto you.
(If you cut your 1 strand of hair (chromosomes) into pieces then it would be a gene.)
Part of your fathers genes and mothers genes join to make up your DNA by passing on their genes to you.
ATTACHED: A picture of a DNA coil.
1. Discuss how the study of fossils provides strong evidence for evolution. (13.2 and 13.3)
Answer:
in fossils we see homologous structures that suggest a common ancestor.
By looking at the bones of the arms and comparative anatomy we see the similar structure and function that is retained.
When looking at other animals like birds we see Analogous structures that look similar but have a different function (flying).
Finally we see Vestigial structures which are structure that no longer function as they once were used for. An example of this is the coccyx (tail bone in humans) compared to tails in dogs, cats, monkeys, etc.
Explanation:
URGENT PLZ ANSWER!!!!
Compare the structures of the cat and chicken embryos in the images above. Which characteristics do the species share as embryos that they do not share when they are fully developed? Select all that may apply.
a) Both animals have tails as embryos
b) Both animals have similar upper limb buds as embryos
c) Both animals have feathers as embryos
d) Both animals have structures similar to gill arches as embryos
e) Both animals use their upper limbs for the same function
Answer:
D
Explanation:
I need help with directional terms
the throat relative to the lungs
the spinal column relative to the shoulder joint
Answer:
Explanation:
calvical
What are involved in synthesis of food
Answer:
Answer. The process of synthesis of food in green plants is called photosynthesis.
This process takes place in the cells containing the green pigment chlorophyll. The raw materials for this process are water, carbon dioxide and sunlight.
A stem cell is:
A. a specialized cell that can divided limitlessly
B. a specialized cell that can divide limitlessly but can't differentiate
C. an unspecialized cell that can't divide limitlessly nor differentiate into specialized cells
D. an unspecialized cell that can divide limitlessly and differentiate into specialized cells
Answer:
A stem cell is A. a specialized cell that can divided limitlessly
Explanation:
sorry if i keep answering ur questions im j good at this stuff lol
Answer:
D.
Explanation:
Stem cells differ from other kinds of cells in the body. All stem cells—regardless of their source—have three general properties: they are capable of dividing and renewing themselves for long periods; they are unspecialized; and they can give rise to specialized cell types. Stem cells are unspecialized.
I hope this helps! ^^
20. Which statement correctly categorizes hog operations?
O A. Feeder operations raise hogs throughout their lifetime, farrow-to-finish operations raise young hogs, and finisher operations raise older hogs
O B. Feeder operations raise hogs throughout their lifetime, finisher operations raise young hogs, and farrow-to-finish operations raise older hogs
O C. Finisher operations raise hogs throughout their lifetime, feeder operations raise young hogs, and farrow-to-finish operations raise older hogs.
O D. Farrow-to-finish operations raise hogs throughout their lifetime, feeder operations raise young hogs, and finisher operations raise older hogs
Answer:
D. Farrow-to-finish operations raise hogs throughout their lifetime, feeder operations raise young hogs, and finisher operations raise older hogs
Explanation:
Hog farms operate in three different categories:
Farrow-to-finish: This involves breeding sows to produce offspring. The offspring's are then fed until they are have reached the size for slaughter. The entire process takes throughout the hogs lifetime.
Feeder operations: This involves breeding sows and then selling their piglets to other farmers who will then raise them for till they are matured for slaughters. This process is just to raise young hogs.
Finisher operations: This involves buying piglets from other farmers and then raising them until they are matured for slaughter. This finisher operations raise older hogs
What is the advantage of a primate having a curved spine?
Answer:
depending on what you mean it can allow you to be more flexable or it can have an effect in your posture
Explanation:
:)))))
where does pyruvate as intermediate take place in photosynthesis? plz explain also thanks
Answer:
Pyruvate take place after the process of glycolysis.
Explanation:
Pyruvate as intermediate take place in the process of photosynthesis after glycolysis process. One glucose molecule is converted into two molecules of pyruvate. This pyruvate molecule then converted into acetyl CoA, which is a two-carbon molecule. A molecule of coenzyme A is a very important reactant for this reaction, which produces a molecule of carbon dioxide and reduces a NAD+ to NADH.
remained short for several centuries, then became much taller over the last 50 years. have consistently grown taller over the last two centuries. vary in height primarily because of the degree of various stressors on each population. vary in height because of genetic differences between groups.
Answer:
Vary in height primarily because of the degree of various stressors on each population
Explanation:
Shorter plants became taller because of the various stressors such as unavailability of sunlight. Due to unavailability of sunlight, the plants grow taller for gaining solar radiation that is required for the process of photosynthesis. So we can say that the environmental condition or stress brought changes in the plant body.
Which statement describes a function of the female reproductive system
Answer:
The answer is B
the ovaries produces the egg
Explanation:
In eukaryotes, all the reactions of photosynthesis occur in various membranes and compartments of the chloroplast.
a. True
b. False
Answer:
The correct answer is - a. true.
Explanation:
The chloroplast is surrounded by inner and outer membranes. These membranes help in separating the inner compartments and structures from the cytosol Inside the chloroplast. These various membranes and compartments play various roles during photosynthesis.
For instance;
a) stroma- the Calvin cycle takes place in the stroma
b) thylakoid membrane - the light reactions takes place here
c) envelope membranes- the inner and outer membranes of the chloroplast
Organelles found in plant cells that function through respiration to produce energy from oxygen and sugar are called —
Question 20 options:
Chloroplasts
guard cells
photosynthons
mitochondria
Answer:
The answer is A) Chloroplasts
Answer:
Chloroplasts
Explanation:
hope i helped
The picture shows the elastic cartilage. Please find the correct label for the structures in the picture
1. All of the answers are correct
2.B is the neucleus of a chondrocyte
3.C is the elastic fiber
4. A is a lucuna
Answer:
postive its "C"
Explanation:
Blood supply to an arm is cut off. Blood in the arm is sampled after
five minutes and analyzed. Which of the following would occur?
Concentration of HHb
A.
B.
C.
D
Concentration of HbO2
high
low
low
Concentration of HCO3
low
high
high
low
high
o
B
A
OC
Answer:
Blood Flow restriction training involves cutting off 50-80% of arterial ... Blood Flow restriction can be used on the arm or leg and the tourniquet is ... minutes, which is enough time to induce a hypertrophy response, but will not cause limb damage. ... Back; 3D Run Analysis · Dry Needling · Weightlifting Analysis
Explanation:
Select all the advantages of a multienzyme complex over a metabolic pathway
A. There is less room for substrates to diffuse away
B. Each enzyme can be activated or inhibited individually
C. The product of one enzyme will serve as the reactant for the next
D. The complex can be regulated as a group
Answer:
Option A, B, C
Explanation:
The major advantages of multienzyme complex over a metabolic pathway is that it do not require individual pathway for each enzyme activation or inhibition. Instead it responds efficiently to the equilibrium changes of substrate supply and demand as compared to that of enzymes.
It tightly regulates the processes and is also faster than that of the metabolic pathway.
Hence, option A, B and C are correct
4. An egg is falling (not freely, do not neglect air resistance) from a nest in a tree. Diagram the forces acting on
the egg as it falls
Answer:
I found it hopes this helps
Explanation:
You have a large bottle of 2% saline solution in the lab (2% NaCl, which is sodium chloride). You need 5 ml of 0.1% saline for an experiment. Do the calculation for the dilution you would need to make (i.e., calculate the volume of 2% saline and the volume of water you would need to combine).
Answer:
volume of 2% saline (V₁) = 0.25ml
volume of water = 4.75ml
Explanation:
The requirement in the question is to obtain 0.1% of NaCl from 2% NaCl, and the process is dilution. The general dilution equation is guven by:
C₁V₁ = C₂V₂
where:
C₁ = initial concentration = 2%
V₁ = initial volume = ?
C₂ = final concentration = 0.1%
V₂ = final volume = 5ml
C₁V₁ = C₂V₂
calculating for V₁
∴ V₁ = (C₂V₂) ÷ C₁
= (0.1% × 5) ÷ 2%
V₁ = 0.25ml
Now, let us calculate the volume of water needed:
V₁ + Volume of water = V₂ (volume of 0.1% NaCl)
0.25 + volume of water = 5
volume of water = 5 - 0.25
volume of water = 4.75ml
The cell membrane contains channels and pumps that help move materials from one side to the other. What are these channels and pumps made of?
Group of answer choices
carbohydrates
proteins
lipids
nucleic acid
Answer:
The correct answer is ''proteins.''
Explanation:
Transport phenomena are essential in living beings, either to carry a hydrophobic molecule through an aqueous medium (transport of oxygen or lipids through the blood) or to transport polar molecules through hydrophobic barriers (transport through the cell membrane). Biological transporters are always proteins. Proteins are capable of carrying out specific functions such as the selective transport of molecules, or certain enzymatic reactions, among others. Membrane proteins can be peripheral or partially or totally integrated into the membrane, being, generally, globular or fibrous. Its activity is essential for the maintenance of transmembrane gradients. Thanks to membrane proteins, the exchange of molecules such as nutrients or waste products takes place, as well as the reception of external signals. Among its functions are channel-forming: Integral proteins arranged in the membrane in such a way that they give rise to the formation of a pore or channel, usually hydrophilic. These pores or channels allow the entry and exit of certain substances from the cell.
What is the relationship between photosynthesis and cellular respiration?
Answer:
Photosynthesis and cellular respiration are essentially opposite processes.
Explanation:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Both use one another's products to make their own.
I would appreciate brainliest, if not that's ok!
what is a solution biology
Answer:
A homogeneous mixture made of two or more substances.
A solution is a homogeneous mixture of solvent and solute molecules. The solute then diffuses through the solvent until the concentration is equal in all parts of the solution. ... A solution can be liquid, solid, or gaseous. Further, a solution can be a mixture of liquids, gases and solids.
Explanation: