What protects the living organisms on the earth from extreme heat and extreme cold?
A. solar system
B. revolution
C. atmosphere
D. changing seasons
Answer:
C) Atmosphere
Explanation:
The atmosphere protects the living organisms on earth from extreme heat and extreme cold.
Answer:
C the atmosphere
Explanation:
1. What is a biogeochemical cycle?
2. What drives, or powers, the water cycle?
3. What causes water to condense and form clouds?
Answer:
1. In ecology and Earth science, a biogeochemical cycle or substance turnover or cycling of substances is a pathway by which a chemical substance moves through biotic and abiotic compartments of Earth.
2. The sun, which drives the water cycle, heats water in the oceans. Some of it evaporates as vapor into the air. Rising vapor cools and condenses into clouds.
3. Heated by sunshine, the ground heats the air just above it. That warmed air starts to rise because, when warm, it is lighter and less dense than the air around it. As it rises, its pressure and temperature drop causing water vapor to condense. ... The air cools as it rises, and eventually clouds form.
Explanation:
brief explain the roles of the following in photosynthesis 1 NADP 2) Ribubose diphostate 3) photosytem 1 ad 2
Answer:
1) NADP is the reducing agent produced by the light reactions of photosynthesis and is consumed in the Calvin cycle of photosynthesis and used in many other anabolic reactions in both plants and animals.
3) Photosystems are the functional units for photosynthesis, defined by a particular pigment organization and association patterns, whose work is the absorption and transfer of light energy, which implies transfer of electrons. Physically, photosystems are found in the thylakoid membranes. There are two kinds of photosystems: photosystem I (PSI) and photosystem II
● PhotosystemSII acts first during the light transformation process in photosynthesis.
● Photosystem1 is an integral membrane protein complex that uses light energy to catalyze the transfer of electrons across the thylakoid membrane from
plastocyanin to ferredoxin. Ultimately, the electrons that are transferred by carrier NADPH.
PLEASE HELP ME WITH THIS
Answer:
more exposure to sunlight and therefore increase photosynthetic production
Explanation:
If a DNA strand contains 12% thymine, it also contains ____
a. 12% A, 38% G, 38% C
b. 12% A, 12% G, 38% C
c. 12% A, 12% G, 12% C
d. 38% A, 12% G, 38% C
Answer:
If G = 14, then C = 14 and G + C is 28. Thus A + T. The percent of adenine in a double-stranded DNA is 38. Therefore G + C = 100 - 76 = 24, and C = 24/2 = 12 percent.
Explanation:
What is the energy molecule that is being used during photosynthesis?
A. H2O
B. NADPH
C. Mitochondria
D. ATP
Which of the following correctly explains the differences between artificial and natural selection?
Not sure what the options are, but artificial selection would be when farmers/breeders choose only to plant/breed the organism with desired characteristics in order to cause the evolution of the trait while natural selection is when organisms that are better adapted to their environment usually survive and produce offspring, causing the evolution of their traits which help them to survive.
Hope that helps!
Please help me I will offer brainliest.
Answer:
NASA using aeroplanes.
Explanation:
I think its only NASA.
8. a) How are the events in the menstrual cycle triggered by the body? (1 point)
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There is a supply of undeveloped eggs in the ovaries. At the beginning of the menstrual cycle, between 6 and 12 undeveloped eggs in the ovaries start to mature. A layer of cells grows around them. At around day 5 of the menstrual cycle, the biggest follicle will continue to grow for another week. At around day 14, the follicle breaks apart, and the wall of the ovary ruptures. The egg is released from the ovary into the fallopian tube, where it can get fertilized. This process is called ovulation. The uterus also changes during the course of the menstrual cycle. It has a lining of cells on the inside, kind of like a cushion with a lot of blood vessels. Fallopian tubes connect the ovaries and the uterus. The uterine cycle begins with menstruation. This is the process through which most of the lining and blood from the last uterine cycle are cleared out of the uterus to prepare for a new attempt at pregnancy. Starting at around day 5, the lining starts to grow. It builds back up to prepare a place for the egg to grow if it gets fertilized. After ovulation, the egg reaches the oviduct. If sperm cells have entered the vagina during intercourse, fertilization may occur at any time in the next two weeks. Then the fertilized egg will move into the uterus and implant itself into the lining, where development will begin.
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The events in the menstrual cycle are primarily triggered by hormonal signals from the body. The menstrual cycle is a complex process regulated by the interplay of hormones produced by the hypothalamus, pituitary gland, and ovaries.
1. Hypothalamus: The hypothalamus, a region of the brain, releases gonadotropin-releasing hormone (GnRH) in a pulsatile manner. GnRH stimulates the pituitary gland.
2. Pituitary gland: In response to GnRH, the pituitary gland secretes two important hormones: follicle-stimulating hormone (FSH) and luteinizing hormone (LH).
3. Follicular phase: At the beginning of the menstrual cycle, FSH stimulates the growth and maturation of ovarian follicles, which contain the developing eggs (oocytes).
As the follicles grow, they produce estrogen, a hormone that helps prepare the uterus for a possible pregnancy.
4. Ovulation: As the estrogen levels rise, it triggers a surge in LH production by the pituitary gland. The LH surge leads to the release of a mature egg from the ovary, a process called ovulation.
5. Luteal phase: After ovulation, the ruptured follicle in the ovary transforms into a structure called the corpus luteum. The corpus luteum produces progesterone, which prepares the uterus for potential implantation of a fertilized egg.
6. Menstruation: If pregnancy does not occur, the levels of estrogen and progesterone decline. This drop in hormone levels triggers the shedding of the uterine lining, resulting in menstrual bleeding.
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1. Explain how the atomic number and mass number of an atom can be used to determine the number of
electrons and of neutrons respectively.
Because the total of neutron and proton/electron is the atomic mass. So if you wanna find proton/electron and you know the neutron, just minus the atomic number with the neutrom and you will get the proton
Here if you need the formula
Atomic number = Total neutron + Total proton or electron
Label flower parts on it
Answer:
AntherFilamentStamenStigmaStyleOvaryPistilOvum/OvulePetalSepalWhich action is necessary for a solar eclipse to occur?
The Moon needs to be full.
Earth needs to pass in front of the Sun.
The Sun needs to pass in front of the Moon.
The Moon needs to pass between Earth and the Sun.
what type of pollination happens when pollen grains from anther are transferred to the stigma of a flower what belongs to the same plant?
A.across-pollination
B.auto-pollination
C.cross-pollination
D.self-pollination
Answer:
It is D
Explanation:
Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant. Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.
help help help help!
Answer:
1:C
2:C
3:D
4:D
this is 110% fact answer
ALL living organsims can absrob nitrogen as free gas.
A True
B False
Answer: FALSE is my best guess on this one.
if it's wrong I'm sorry i dinin't help you on this and have a great day
a cell has a 5% salt concentration is placed in a solution with a 15% salt concentration, the cell will
Answer:
Water will move into and out of the cell at the same rate, causing it to remain the same size.
Write the correct type of mutation that occurred in creating the mRNA strand for each of the following
examples. Original DNA: ATCCGCTTACG
a. UUGGCGAAUCG: __________________
b. UATGGCGAAUCG: _________________
c. UGGCGAAUCG:__________________
Answer:
a. the second nucleotide is wrong. It is a U but should be an A. No other nucleotides were effected by this, only the one was effected. This is a Point (Substitution) Mutation.
b. the third nucleotide is wrong. It is a T that was inserted. As you can see, the rest of the nucleotides are right, but since the T was added, it will mess up how the rest of the sequence is read. It will be read UAT GGC GAA... instead of UAG GCG AAU... see how it messed it up? This is an Insertion (Addition) Mutation.
c. the second nucleotide was deleted. This is called a Deletion Mutation. It will mess up the rest of the sequence, similar to how the example above did.
I hope that helped you understand!
What are three examples of protists?
A.amoeba
B.paramecium
C.euglena
D.fungi
Answer:A,B,C
Explanation:
what useful purpose is served by cell division in a multicellular organism : select all the correct answers.
A: to ensure that a cell does not become to large
B; To produce new cells during an organisms growth
C: To replace damaged cells and tissues
D: to ensure all cells remain undifferentiated
Answer:
c
Explanation:
the main reasons cells duplicate is so they can replace damaged cells and tissues
The following options are the useful purpose is served by cell division in a multicellular organism:
A. to ensure that a cell does not become too large B. To produce new cells during an organism's growth C. To replace damaged cells and tissuesMulticellular organisms are the organism that is formed by the complex organization of cells, tissues, or organs Whereas a single-cell organism is unicellular organisms.
Single-celled organisms use cell division only for reproduction.All multicellular organisms use cell division for growthAnther purpose of cell division in multicellular is to replace and repair cells and tissues.Cell division is a strictly controlled process as a failure of regulation can be life-threatening.In multicellular organism cell division takes place in sex cells as well as somatic cellsThus, the correct answer is options A, B, and C.
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aid of diagram describe the biconversion of surfur cycles?
Answer:
The sulfur cycle describes the movement of sulfur through the geosphere and biosphere. Sulfur is released from rocks through weathering, and then assimilated by microbes and plants. It is then passed up the food chain and assimilated by plants and animals, and released when they decompose.
plzzzzzzz help my lil sister out she wont stop texting me while im working
Answer:
False
Explanation:
It will only be 78% in 2040
Answer:
False.
Explanation:
63% of our energy comes from fossil fuels.
Please answer!!
Read the paragraph from the section "Types Of
Isolation."There are biological properties of organisms
that prevent breeding across different species. They are
known as reproductive isolating mechanisms (RIMs). A
mechanism is a process or method. Which option is the
BEST definition of "properties" as it is used in the
paragraph above?
The correct answer is B. Traits or features that take effect.
Explanation
Property is a word to designate any quality that identifies identifying something or someone, distinguishing it from its peers. It can refer to different issues such as its characteristics, capabilities, possibilities, physical appearance, among others. According to the text, "There are biological properties of organisms that prevent breeding across different species". So the answer is B. Traits or features that take effect.
why is there a crisis if "energy can neither be created or destroyed"?
Answer: Scientists say that energy can neither be created nor destroyed, so therefore it is impossible for there to be an energy crisis.
Explanation:
I'm pretty sure I'm right
Answer:
There is a problem because if energy is created as machines worked everything would speed up until it breaks, and if energy was destroyed as machines worked everything would eventually slow down and stop. So in both cases the world would end, a whimper in one a bang in the other.
Explanation:
Reference: How things Work Now(book)
The purpose of "crossing over" is
A. to add genetic diversity
B to pull the chromosomes away from each other
C to make identical copies of the parent cell
D to help dissolve the nuclear membrane
PLEASE HELP ME !!!!!!!!
Answer:
1 eubacteria
2 archaebacteria
3 eubacteria
4 animalia
5. protista
6. protista
7 archae bacteria
8plants
9 fungi
10 fungi
11 protista
12 protista
13. eubacteria
14. fungi
15 fungi
16 plants
17 protista
18 eubacteria
19 animalia
20 archaebacteria
21. protista
22. animalia
23eubacteria
24 likely fungi though archae and protista and eubacteria would fit too
Explanation:
it is where exchange of nutrient,oxygenated and unoxygenated,blood takes place
Answer: The cardiovascular system (the heart)
Explanation: It pumps the blood the right side pumps deoxygenated blood, meanwhile the left pumps oxygenated blood
Hope this helps :)
What is an example of elastic potential energy?
a. stretching a rubber band
b. apple falling from a tree
c. A dog lying on the floor
d. throwing a ball
Answer:
a.stretching a rubber band
Answer:
An example of elastic potential energy is
A. stretching a rubber band.
Hope it will help :)
An earthquake is best described as a
I need an edg answer
Answer:
short term
Explanation:
Answer:
short term
Explanation:
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Which of the following is NOT an ecosystem
service that forests provide?
habitat for wildlife
reduce soil erosion
lumber
carbon sink
all of the choices are ecosystem services
Answer:
All of the choices are ecosystem services.
Explanation:
Trees' roots hold soil down so it doesn't move everywhere and they recycle carbon into oxygen. In addition, they provide us wood and beautiful wildlife!
Have a great day!
The ecosystem services are all the benefits provided by the ecosystem to human. Otion A) habitat for wildlife is not an ecosystem service.
What are the Ecosystem Services?
When talking about ecosystem services, we are referring to the goods and services offered by ecosystems to human populations
There are different types of ecosystemic services:
Provision or supply:These are the products obtained by nature to be used or consumed, directly or with previous processing.
Among them, we can mention food, clear fresh-water, fertile soils, geotic materials, raw materials (used for clothing, construction), renewable fuels, biochemical compounds, pharmacological/medicinal resources, and others.
Regulation:Refers to ecological processes that improve life.
Among others, we might mention climate regulation, CO₂ absorption, water purification, air purification, erosion control, natural disaster avoidance such as flooding, soil formation and fertility maintenance, nutrient cycling, waste recycling, pests/plagues control, etc.
Cultural:Refers to the benefits that are not material.
Ecosystems also provide a recreational place or area to spend time, learn. They are a spiritual/religious space, a source of inspiration. They are considered to be cultural patrimony and the source of scientific knowledge.
Among th options, the one that is not a ecosystemic service is option A) habitat for
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.
"A cell with 26 chromosomes undergoing meiosis will have 4 daughter cells with 26 chromosomes each by the end of meiosis II. " why is this INCORRECT?
Answer:
the number of chromosomes each time gets halved
so the first division will have 13 in each daughter cell
and the second will have about 3 in each daughter cell
Explanation: