Answer: Alkali metals and alkaline earth metals both have chemical reactivity to air and water.
Alkali are in group 1 of the periodic table. Alkaline earth metals are in in group 2 of the periodic table. The main difference between alkaline and alkali is that alkali metals have one valence electron, when alkaline earth metals have two valence electrons.
Explanation:
HELP *20 POINTS*
8th grade science
Answer:
pyroclastic flow is a fast moving current of hot gas and volcanic matter that flows along the ground away from a volcano at high velocities.
Hotspot is volcanic regions thought to be fed by underlying mantle that is anomalously hot compared with the surrounding mantle
caldera-a large volcanic crater, especially one formed by a major eruption leading to the collapse of the mouth of the volcano.
tephra-rock fragments and particles ejected by a volcanic eruption
epicenter-the central point of something, typically a difficult or unpleasant situation
fault-an extended break in a body of rock, marked by the relative displacement and discontinuity of strata on either side of a particular surface
surface waves- mechanical wave that propagates along the interface between differing media
body waves-A body wave is a seismic wave that moves through the interior of the earth, as opposed to surface waves that travel near the earth's surface. P and S waves are body waves.
sorry if this doesnt help
A student carried out two food tests on solution F to determine what food groups it
contains.
Test2
Benediction
lodine
Blue colour
Solution
Heat
Solution
Back colour
What nutrients does solution F contain?
А
Starch only
Starch and protein
B
с
Starch and Vitamin C
D
Protein only
Answer:
A- starch only
Explanation:
when person adds Benedict's solution, it says blue, this shows a negative result.
when person adds iodine solution, it turns black, which shows a positive result for starch.
so solution contains only starch.
hope it helps!!
The mealworms gained mass and the potato lost mass. The
mealworms got their mass from the_________
Fill in da blank
HURRYYYYYY!!!!!!!!!!!!!!! ¡!!!!!!!?!!?!?!!?!?!?!??!?!!?
What are the conditions for exponential growth?
Answer:
The rate becomes ever more rapid in proportion to the growing total number or size.
Explanation:
Answer:Exponential growth may occur in environments where there are few individuals and plentiful resources, but when the number of individuals becomes large enough, resources will be depleted, slowing the growth rate. Eventually, the growth rate will plateau or level off.
Explanation:
How does mitosis differ from meiosis? A. Mitosis makes gametes, meiosis makes body cells B. Meiosis makes haploid cells, mitosis makes diploid cells C. Mitosis requires cytokinesis, meiosis does not D. Mitosis makes gametes and meiosis makes zygotes
Answer:
B
Explanation:
Mitosis carries out the process of asexual reproduction, produces two identical daughter cells and forms diploid cells. Meiosis carries out the process of sexual reproduction, forms four different daughter cells and makes haploid cells.
Can someone plss help me fill out this Taxonomic Key please
Answer:
Following the instructions would give the following:
3. B - Minnesota
4. A. Mississippi
B. Missouri
5. B Iowa
7. A. Louisiana
8. B. Arkansas
9. A. Tennessee
B. Kentucky
10. A. Wisconsin
B. Illinois
12. A. New York
B. North Carolina
13. A. California
B. Colorado
Would you rather have everything you draw become real but be permanently terrible at drawing or be able to fly but only as fast as you can walk?
Answer: I would want to be able to fkly only as fast as I can walk
Explanation: I wouldn't want my drawings to be my nightmare. What about you?
Answer:
2nd option
Explanation:
Yes i Am from Shadow ridge
3. The period of cell division is called
a.
e. interphase
f. cytokinesis
g. mitosis
h. protoplasm
Answer:
g. mitosis
Explanation:
mitosis is when cells divide
How long is the Volga River?
Answer:
The Volga River is 3,530 km long.
Explanation:
Materials in cells may be transported by passive or active processes, both of which may involve concentration gradients, the phospholipid bilayer, and membrane proteins. Part A: Compare the role of concentration gradients in passive and active transport. Part B: Compare the role of the phospholipid bilayer in passive and active transport. Part C: Compare the role of membrane proteins in passive and active transport.
Answer:
Concentration gradients:
Passive transport: In favor ----> Simple Diffusion and facilitated diffusionActive transport: AgainstPhospholipid bilayer
Passive transport: Small particles or molecules can pass through the membrane----> Simple diffusionActive transport: Big particles or molecules need proteins to pass from one side to the other of the membraneMembrane proteins
Passive transport: Channel proteins in favor of electrochemical gradient---> Facilitated diffusionActive transport: Transporters or carrier proteins help molecules to pass to the other side of the membrane the electrochemical gradient.Explanation:
Diffusion: Refers to the pass of some small polar hydrophilic molecules through the lipidic bilayer. There are momentary membrane openings that allow small molecules to freely move from one side to the other in favor of the electrochemical gradient. These openings are the result of the lipids movements. The membrane permeability depends on the size of the molecule. The bigger the molecule is, the less capacity to cross the membrane it has. Diffusion is a very slow process, and to be efficient requires short distances and pronounced concentration gradients.
Facilitated diffusion: Occurs when big hydrophilic molecules cannot move freely across the membrane. In these situations, channel proteins are in charge of passive transport. Facilitated diffusion also occurs in favor of electrochemical gradients, meaning that molecules move from the more concentrated side to the less concentrated side.
Simple diffusion and facilitated diffusion are passive transport processes because the cell does not need any energy to make it happen.
Active transport is against the electrochemical gradient, so it does need energy to happen. Molecules move from a lower concentration side to a higher concentration side. This process is always in charge of carrier proteins. In primary active transport, the energy needed comes from the ATP molecule. In secondary active transport, the energy comes from the membrane electric potential.
Transmembrane proteins act in active and passive transport, connecting cells, and participating in signal transduction.
Channel proteins act by passive transport (these proteins do not need energy to carry in or out substances. They do it according to an electrochemical gradient) and carrier proteins act during active transport (these proteins do need the energy to transport substances because they do it against an electrochemical gradient). These transmembrane proteins carry in those substances needed by the cells to properly perform their activities, and they can also carry out waste substances.
Decomposers use a process know as ?
Answer:
Decomposition
Explanation:
Decomposers include bacteria and fungi. These organisms carry out the process of decomposition, which all living organisms undergo after death. Decomposition is an important process because it allows organic material to be recycled in an ecosystem.
In eukaryotic cells, mRNA is made in the
a
nucleus
b
cytoplasm
Answer:
A I think I may be wrong 17 more days until Christmas
Answer:
The answer is A nucleus
Explanation:
The process of making mRNA from DNA is called transcription. It occurs in the nucleus. The mRNA moves the synthesis of proteins, which occurs in the cytoplasm. mRNA formed in the nucleus is moved out of the nucleus and into the cytoplasm where it attaches to the ribosomes.
How do Rosa's body systems work together to get the molecules she needs into her cells?
Answer:
Digestive system and circulatory system.
Explanation:
Rosa's body systems such as digestive system and circulatory system etc work together to get the molecules she needs into her cells. the digestive system provides molecules needed by the cell from break down of food molecules in order to generate energy in the form of ATP while on the other hand, circulatory system is responsible for the transportation of molecules or substances from one part to another part of the body.
what element is missing from glucose and cellulose molecules but must still be consumed by urchins when they eat the kelp in order to make their protein
The element that is missing from glucose and cellulose molecules but must still be consumed by urchins when they eat the kelp in order to make their protein is carbon. The correct option is a.
What is protein?Protein is a macromolecule that is necessary for the growth and development of the body. They are made up of amino acids.
Carbon is an element or a substance that is present on earth in different forms full stop carbon is present in two forms on the earth, one is black and heart solid and one is gray and soft.
Another element that produces different compounds when carbon reacts with oxygen is produced carbon dioxide, which is a very harmful gas for the earth and human beings. Sea urchins need carbon dioxide to make proteins.
Therefore, the correct option is a, Carbon.
To learn more about protein, refer to the link:
https://brainly.com/question/15969790
#SPJ2
The question is incomplete. Your most probably complete question is given below:
Carbon
Hydrogen
Nitrogen
Oxygen
Which of the following are likely to form an ionic bond?
O copper atoms
o hydrogen and oxygen atoms
O copper and fluorine atoms
hydrogen atoms
what two materials are part of soil?
a) pieces of metal
b) once-living matter
c) small bits of rock
d) trees and grass
Answer: Once Living Matter, Small bits of rock
Explanation: CANVAS VERIFIED
Answer:
Small bits of rock and once living matter
Explanation:
How important is knowledge of advances in science and technology for people of different professions?
Answer:
science and technology has played in improving the life conditions across the globe.
Explanation:
science and technology helps to do reaserch of different species and elements. I don't know much
This is urgent; please answer quickly.
Answer:
The correct answer is option C. the movement of water from the central vacuoles of the cells into the solution.
Explanation:
In the given question onion cell was initially in 1% NaCl solution later student increase the concentration of the NaCl in the solution which makes the solution hypertonic.
A hypertonic cell is a solution with less water or more solute. Increasing salt concentration makes solute concentration high than inside the cell. Cell shrink in this case due to the osmosis or water movement from the high concentration region of water to the low concentration of water region.
PLEASE HELP URGENT.!!!! 50 POINTS!!!
Drag each image to the correct location on the diagram.
An organism that has been observed in the Atacama Desert undergoes mutations in its genome. The trait caused by the mutation is beneficial to the species’ survival. Complete the model to show the process of natural selection during the third, fourth, and fifth generations.
G6PD deficiency is an inherited condition in which the body doesn't have enough of the enzyme glucose-6-phosphate dehydrogenase niece or G6PD which helps red blood cells function normally. G6PD deficiency is most common in African-American males. When females are carries. It is known to Africa in the Mediterranean basin are high risk areas for the infectious disease malaria. Researchers have found evidence that the fair site that causes malaria does not survive well in G6PD deficient cells. How do you explain this
Answer:
The environment is not favorable for malarial parasite.
Explanation:
The malaria does not survive well in G6PD deficient cells because the malarial parasite named plasmodium needs blood cells for its survival but in G6PD deficient cells, red blood cells does not perform their function normally which make environment unfavorable for the malarial parasite so that's why we can say that malaria does not survive well in G6PD deficient cells.
Please help!!!!!! Happy holidays
Answer:
a and thanx u to
Explanation:
8. Which system works most directly with the nervous systen to move
the body?
10 points
A-immune
B-respirato
C-digestive
D- muscular
Answer:
D
Explanation:
Muscular system works most directly with the nervous system to move the body
Macy is looking for groundwater. She will most likely find it
in an area with limestone deposits,below a layer of shale,under a mountain,
in a desert with no plants
In which device would you find a fluid called a coolant?
a. thermostat
b. refrigerator
c. heating appliance
Answer:
I think its B: Refrigerator, but double check
Explanation:
Name two actions
that you could take to reduce elephant poaching.
Answer:
increase protection and communal conservancies
Explanation:
increase protection this one is a fairly basic solution, there are many different ways of implementing it. Some park protection agencies in Africa use drones to keep watch at night, while others have sought out military tactics in order to stop black market poachers. Communal conservancies despite global trends, Namibia has done something extraordinary. Between the years of 2002 and 2013, the elephant population has grown from 9,600 to 16,000. The government of Namibia has policies in action where local communities can establish wildlife tourism, and where communities can keep vast amounts of the revenue made.
1) How many Amino Acids are there? How do we obtain Amino Acids?
2) Which type of fat is generally healthier for you? Why?
3) What elements are found in proteins?
4) What elements are found in lipids?
COMPLETE SENTENCES PLEASE ILL GIVE BRAINLIEST
1) There are 20 amino acids. The best sources of essential amino acids are animal proteins like meat, eggs and poultry.
2) Unsaturated fat is generally healthier for you. Unsaturated fats help lower a person's levels of LDL cholesterol, reduce inflammation, and build stronger cell membranes in the body.
3) Elements found in proteins are carbon, hydrogen, oxygen, nitrogen and sulfur.
4) Elements found in lipids are hydrogen, sulfur, carbon, nitrogen, oxygen and phosphorus
Which statement BEST describes how cancers are classified? A. Cancers are classified according to the type of tissue they affect. B. Cancers are classified according to the rate at which they grow. C. Cancers are classified by how many organs they affect. D. Cancers are classified by the size of the cells that are involved.
Answer:
A
Explanation:
Took bio before?
Answer:
A
Explanation:
Which of the following is not a function of the circulatory system?
circulate gases
circulate waste and nutrients
fight off infection
absorb nutrients
Answer:
I believe it is D. Absorb nutrients
Explanation:
The primary function of the circulatory system is to circulate nutrients, oxygen, cardon dioxide, and blood. It CIRCULATES nutrients not absorb.
I hope this helps.
Carbohydrates main functions
Answer:
They provide you with energy for daily tasks and are the primary fuel source for your brain's high energy demands.
Explanation:
Which of these is a heterotroph?
A. plant
B. producer
C. consumer
D. phytoplankton
Answer:
D
Explanation:
Answer:
c. Consumer ! Happy holidays