Which two of the three elements have SIMILAR CHEMICAL PROPERTIES (valence electrons)?
1. Li - Na - Mg
2. F - Br - O
3. P - As - Se
4. Ra - Ba - Cs
Answer:
1. Li - Na
2. F - Br
3. P - As
4. Ra - Ba
True or False: Both predator and prey
species experience the same pattern of
"boom and bust" cycles.
Answer:
true
Explanation:
3. The nitrogenous base, adenine, pairs with
A. Cytosine
B. Guanine
C. Thymine
D. Uracil
hurry please !
Answer: C) Thymine
Explanation: 100% sure this is the answer! pls mark brainliest!
When you use the five senses to describe something is ____________________observation.
Answer:brilliant
Explanation:
Match the names and descriptions to the correct phase of a star's life cycle.
PLATO. please help!
Answer:
pic 1 red giant, a star whose outer shell has expanded and cooled
pic 2: supernova, a shock wave produced by extremely high temperatures
pic 3: black hole, a high mass star that has collapsed from gravity
pic 4: white dwarf, a low mass star that has shed its outer layers
Explanation:
PLEASE PLESAE HELP ME
Fungi are able to digest food outside of their body and then absorb it, what term describes this process?
a). Absorptive heterotroph
b). autotroph
c). chemotroph
d). carnivores
Answer:
a.) Absorptive heterotroph.
Explanation:
What will happen if ATP and NADPH are already used up at night?
Answer:
If ATP and NADPH are already used up at night , the production of glucose will stop.
Explanation:
IMPORTANCE OF ATP AND NADPH -: To temporarily store energy, the light-dependent reactions generate ATP and either NADPH or NADH. In light-independent reactions, these energy carriers are used to drive the energetically unfavorable mechanism of "fixing" organically inorganic CO2.
ATP is the molecular energy "currency" in biological systems. All energy produced by living organisms' cellular respiration must end up being used as ATP to power it. NADPH is a hydrogen carrier molecule reduced by NADP (Nicotinamide Adenine Dinucleotide Phosphate). While the light-dependent reactions take place, energized electrons hop on to electron carriers excited by photon energy from the sun (On Photosystem 2) and finally get to Photosystem one.
If ATP and NADPH are already used up at night, the fixation of carbon dioxide into glucose will halt. In other words, the light-independent reaction of photosynthesis will stop.
There are essentially 2 reactions in photosynthesis:
light-dependent reactionlight-independent reactionIn the light-dependent reaction, radiant energy is used to excite electrons chlorophyll molecules while electrons in water replace the excited electrons. ATP and NADPH are generated in the process.
The ATP and NADPH produced during the light-dependent reaction of photosynthesis are essential for the reduction of carbon dioxide into glucose in the light-independent reaction.
Hence, unless the light-dependent reaction takes place to make ATP and NADPH available, there is no other way to produce the precursors for the fixation of carbon dioxide into glucose.
More on photosynthesis can be found here: https://brainly.com/question/1388366
Which statement is part of the cell theory ?
A)all living organisms are made of cells
B)all cells contain DNA that they pass on to daughter cells
C)all cells depend on their surroundings to provide energy
D)all cells have a nucleus
Answer:
A.
The answer is A bc THe Cell theory is what the conditions cells follow.
Hope this helps! ;)
~Emilie G.
Why does the amount of protons and electrons stay the same in stable atoms?
is this a balanced equation yes or no?
Na(g)+2HCl(g)⇒H2+2NaCl(s)
How do I write a hypothesis in "If...then..." format?
Research question: "What vegetation type supports the highest abundance of life"
My answer is the savannah/woodland
Answer:
If I were you, I would make my hypothesis something like:
"If the vegetation type is a savannah/woodland, then it will support the highest abundance of life."
Explanation:
I know that hypothesis can be tricky to write at first, but if you turn the research question into a sentence, then you can write your hypothesis. Best of luck with your experiment.
Hope this helps! Feel free to give me Brainliest if you feel this helped. :)
If climate change increases the overall temperature of the earth, glaciers can melt
into the ocean. If that happens, what would be the spheres involved?
A. cryosphere and hydrosphere
B. geosphere and atmosphere
C. cryosphere and biosphere
D. hydrosphere and atmosphere
The climate change increases the overall temperature of the earth, glaciers can melt into the ocean. The spheres involved cryosphere and hydrosphere. Thus option A is correct.
What is cryosphere?Cryosphere is defined as solid precipitation, snow, sea ice, lake and river ice, icebergs, glaciers and ice caps, ice sheets, ice shelves, , and seasonally frozen ground are all components of the Earth's climatic system.
It can also be defined as the area of the earth's surface marked by the presence of water.
Hydrosphere is defined as the total mass of water on, beneath, and above the surface of a planet, minor planet, or natural satellite.
It can also be defined as the component of the Earth made up of all liquid water.
There are basically three types of hydrosphere.
LiquidVaporIceClimate change is defined as the long-term temperature and weather pattern shifts These changes could be natural, such as oscillations in the solar cycle.
Thus, the climate change increases the overall temperature of the earth, glaciers can melt into the ocean. The spheres involved cryosphere and hydrosphere. Thus option A is correct.
To learn more more about cryosphere, refer to the link below:
https://brainly.com/question/18029646
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This molecule is a and it is classified as
A.) saturated fatty acid, lipid
B.) saccharide, carbohydrate
C.) unsaturated fatty acid, carbohydrate
D.) unsaturated fatty acid, lipid
How does water polarity affect the way water interacts with different substances?
Answer:
Water interacts differently with charged and polar substances than with nonpolar substances because of the polarity of its own molecules. ... Because of its polarity, water can form electrostatic interactions (charge-based attractions) with other polar molecules and ions.
1.) Which of the following is NOT an example of a
producer?
45°: rose bush 135° grasshopper
270°: apple tree 180°: wheat
Answer:
A grasshopper is not a producer.
Explanation:
A grasshopper eats plants; therefore it is a consumer, also known as a heterotroph.
2. Why must the satellite use electromagnetic
waves instead of sound waves?
Answer:
Since electromagnet waves do not need a medium they can travel through space. Sound waves can't travel through space because they need a medium.
Explanation:
The satellite uses electromagnetic waves instead of sound waves these types of waves do not require any medium for the transmission of the information.
What types of electromagnetic waves are used by Satellites?The types of electromagnetic waves that are used by satellites are known as radio waves. These waves are utilized in order to carry out satellite signals with a speed of 3000,000km/sec.
Electromagnetic waves facilitate the required amount of speed and characteristics which ease the transmission of information required by the satellites. Radio waves are traveling through the vacuum of space with the fastest speed at which the information via the satellite can be transmitted. Radiowaves are also used for spacecraft communications as well.
Therefore, the satellite uses electromagnetic waves instead of sound waves these types of waves do not require any medium for the transmission of the information.
To learn more about Electromagnetic waves, refer to the link:
https://brainly.com/question/13874687
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How much work is required to push a 300 N box 10 m across the floor?
Answer:
3000J
Explanation:
W = F x D
W = 300N x 10m
W = 3000J
List the four reasons why humans should protect ecosystems.
Answer:
Explanation:
Healthy ecosystems clean our water, purify our air, maintain our soil, regulate the climate, recycle nutrients and provide us with food. They provide raw materials and resources for medicines and other purposes.
Which of the following are biological macromolecules?
Question 2 options:
carbon
lipids
carbohydrates
nucleic acids
proteins
fatty acids
Answer:
The four types of macromolecules are carbohydrates, lipids, proteins, and nucleic acids.
Explanation:
So, your answer would have to be lipids, carbohydrates, and proteins, and nucleic acids. Fatty acids and carbon are not macromolecules.
Fill in the blank spaces in the table.
Neutron
Protomis
Atomic Mass
1
1
6
6
Element
Hydrogen
Carbon
Calcium
Fluorine
Potassium
Oxygen
20
40
9
19
19
39
8
16
Which subatomic particle identifies the atom?
og e
Answer:
hydrogen =1 1
carbon=6 6
calcium=20 40
fluorine=9 19
potassium=19 39
oxygen=16 8
what is soil fertility
Answer:
Soil fertility is the ability of soil to sustain plant growth and optimize crop yields.
Explanation:
Plz mark me as brainest answer
The track star runs 100m at a rate of 10.4m/s. How long did it take to run 100m?
Answer:
Time, t = 9.62 secs.
Explanation:
Speed can be defined as distance covered per unit time. Speed is a scalar quantity and as such it has magnitude but no direction.
Mathematically, speed is given by the equation;
[tex]Speed = \frac{distance}{time}[/tex] ....equation 1
Making time the subject formula;
[tex]Time = \frac{distance}{speed}[/tex] .....equation 2
Given the following data;
Distance = 100m
Speed = 10.4m/s
Substituting into equation 2;
[tex]Time = \frac{100}{10.4}[/tex]
Time, t = 9.62 secs.
Which statement best compares a multicellular organism to a single-celled organism?
Answer:
A multicellular organism has organ systems that interact to carry out life functions, while a single-celled organism carries out life functions without using organ systems.Explanation:
What is a gene? What is its purpose?
I
what happens to energy during cellular respiration
Answer:
During cellular respiration glucose and oxygen are converted into carbon dioxide and water and the energy is transferred to ATP.
Explanation:
if a person happens to have a blood type which is AB+, can we consider it as a case under the codominance pattern of inheritance? why or why not?
Is it possible for two parents that both have a recessive trait to pass off the dominant trait to their offspring???
Which is NOT TRUE about upland landscape positions?
A May be subject to erosion
B Normally the oldest and most strongly developed
C Area of accumulation of soil material
D Includes summits and side-slopes
Answer:
A. May be subject to erosion
Explanation:
living things are made up of very complicated molecules. why is carbon important for forming these complicated molecules
Answer:
it forms very strong bonds
Explanation:
Answer:
It forms very strong bonds
Explanation:
please answer this for me
Answer: Organ
Check my answer
Explanation: