How has earths atmosphere changed over time
Answer:
Hey mate....
Explanation:
This is ur answer.....
When earth was first formed, its atmosphere was likely composed of hydrogen, helium, and other gases that contained hydrogen. Over a vast amount of time, millions of years, the earth gradually cooled. When the temperature dropped enough, water vapor condensed and went from a gas to liquid form. This created clouds.
Hope it helps!
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Answer:
When earth was first formed, its atmosphere was likely composed of hydrogen, helium, and other gases that contained hydrogen. ... Over a vast amount of time, millions of years, the earth gradually cooled. When the temperature dropped enough, water vapor condensed and went from a gas to liquid form. This created clouds.
Before life began on the planet, Earth's atmosphere was largely made up of nitrogen and carbon dioxide gases. After photosynthesizing organisms multiplied on Earth's surface and in the oceans, much of the carbon dioxide was replaced with oxygen.
Hope that helped. x
How many bonds can
carbon make with itself
or other elements?
A. 7
B. 8
C. 4
D. 1
Answer:
the answer is c- 4 Bonds
Explanation:
Explanation:
carbon can make four covalent bonds
What functional group is found on the head end of a lipid molecule?
a. carboxyl group
b. amino group
X c.omega-3 fatty acid
d. glycerol
Answer:
Glycerol is a small organic molecule with three hydroxyl (OH) groups, while a fatty acid consists of a long hydrocarbon chain attached to a carboxyl group.
Explanation:
hope it helps
What do protists and animal cells have in common?
animals of the same general body types have the same anatomy true or false
Animals of the same general body types having the same anatomy is True.
Anatomy is the study of the body parts, structures and functions of
organisms.
In situations where animals have the same general body type , then it means
they also have the same anatomy. A good example is mammals which have
the same structure of body parts and the same anatomy.
Organisms with different body structures however have an entirely different
anatomy which is why True is the most appropriate choice.
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cloning an individual usually produces organisms that
What is it called when part of a cell membrane closes around a molecule to allow the molecule to enter the cell?
A. Diffusion
B. Passive transport
C. Exocytosis
D. Endocytosis
Answer:
Endocytosis.
Explanation:
In endocytosis, the cell membrane forms a cup-like sac around the molecule, the two lips of the cup meet around the molecule so that a vesicle is formed by the separation of that part of the cell membrane.
RrBb*rrbb
RRBB*RRBB
RrBb*RrBb
rrbb*rrbb
Answer:try B sorry if im wrong i did some research :/
Explanation:
Which of the following situations
demonstrates a chemical change?
A. wood turning to ashes as it burn's
B. ice forming when water is placed in a freezer
C. sugar dissolving in a glass of hot
tea
D. a board becoming smooth as it is sanded
an organism or cell having two sets of chromosomes or twice the haploid number
Answer:
Diploid
Explanation:
Sexually reproducing organisms are diploid (having two sets of chromosomes, one from each parent). In humans, only their egg and sperm cells are haploid.
23. Where are earthquakes most likely to
occur?
A where Earth's tectonic plates are
moving together
B where
magma cools slowly beneath
Earth's surface
C where Earth's lithosphere is in
constant, slow motion
D where Earth's seafloor is spreading
into deep ocean trenches
Answer:
D where Earth's seafloor is spreading into deep ocean trenches
Explanation:
Over 80 per cent of large earthquakes occur around the edges of the Pacific Ocean, an area known as the 'Ring of Fire'; this where the Pacific plate is being subducted beneath the surrounding plates. The Ring of Fire is the most seismically and volcanically active zone in the world.Phospholipids in a cell membrane are arranged so that the ______________ heads face the inside and outside of the cell where water is found.
A, hydrophilic.
B, hydrophobic.
C, water-fearing.
D, none of the above.
Please help :)
somatic cells can also be called
Answer:
They are also called vegatal cells.
Explanation:
Soma- in Latin, means (Body),
So, Somatic cell .. means a Body cell,
Generally, our body contains 2 types of cells according to number of chromosomes :
1- Somatic cells : - almost all body cells are somatic cells
- contain 46 chromosomes (diploid)
2- Germ cells : - only sperms in male & Eggs in female, are germ cells
- they contain 23 chromosomes (haploid)
- they are supposed to unite together (Egg & sperm) to form a diploid cell (23+23=46) ...that will eventually grow into a baby.
in general, enzymes are what kinds of molecules?
Answer:
Enzymes are proteins.
where in the bone are red blood cells made?
periosteum
compact bone
spongy bone
joint capsule
Answer:
red blood cells or formed in the red bone marrow of bones
A community in which populations of plants and animals remain stable and exist in
balance with each other and the environment
Answer:
ecological community
Explanation:
A climax community is the final stage of succesion
Illustrate the following with the help of suitable diagrams.
a) Binary fission in Amoeba
b) Binary fission in Leishmania
c) Multiple fission in plasmodium
d) Regeneration in Planaria
e) Budding in Hydra
f) Spore formation in Rhizopus
Answer:
D. Regeneration in Planaria
Explanation:
If it is divided into 3 parts a, b and c, each part grows as a new individual
Can I get some help please.
Answer:
1. 50% dominant
2. 50%
3. 0%
Chimpanzees, chickens, cows, and human beings all share a gene for an insulin hormone. What does this suggest? (1 point)
a. this suggests that none of these species share a common ancestor
b. this suggests that all of these species share a common ancestor
c. this suggests that two of these species share a common ancestor
d. this suggests that three of these species share a common ancestor
Chimpanzees, chickens, cows, and human beings all share a gene for an insulin hormone this suggests that b. this suggests that all of these species share a common ancestor.
What is evolution?In biology, evolution is the alternative withinside the traits of a species over numerous generations and is based at the method of herbal selection. All cutting-edge people are 99.9% much like each other with inside the part of the human genome that codes for proteins.
In equal regions of the genome, we're 98.8% genetically much like chimpanzees, 75% genetically much like chickens, or even 60% genetically much like banana tree evidence from fossils, proteins, and genetic research shows that people and chimpanzees had a not unusual place ancestor tens of thousands and thousands of years ago. Most scientists trust that the 'human' own circle of relatives tree (called the sub-organization hominin) breaks up from the chimpanzees and different apes approximately 5 to seven million years ago.Read more about the hormone
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Say my day is good if u like girls and if your single
Answer:
Have a good and Nice day ahead !!!Explanation:
Have a great day ahead........
Although cellular respiration involves many steps, the whole process can be represented by a single equation.
A + B → C + D + E
Which substances would complete the equation that models the overall process of cellular respiration?
A:
ATP
B:
C:
D:
E:
Answer:
Glucose,energy , water , hydrogen
Which is another way to describe a gene?
A: a sequence of three base pairs
B: a unit of inheritance that transmits information
C: a short segment of information that is translated and taken out of the nucleus
Which is another way to describe a gene?
A: a sequence of three base pairs
B: a unit of inheritance that transmits information
C: a short segment of information that is translated and taken out of the nucleus
Answer:-B: a unit of inheritance that transmits information
Explanation:-A gene is the basic unit of heredity that occupies a specific position on a chromosome. Each is composed of linearly arranged nucleotides.
In another way, a gene may be described as a unit of inheritance that transmits information. Thus, the correct option is B.
What is a Gene?A gene may be defined as a stretch of a segment that is present in the chromosome and helps to determine a characteristic.
Genes are present in the chromosomes of an organism. Genes carry out the instructions to construct molecules called proteins which induce specialized operations and build up the structure of living organisms.
Therefore, the correct option for this question is B.
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Which regions have been most affected by rising temperatures?
Answer:
Japan
The Philippines
Germany
Madagascar
India
Sri Lanka
Kenya
Rwanda
Explanation:
4. PART B: Which quote from the text best supports the answer to
Part A?
O A "protesting the annexation of Texas as a slave state." (
Paragraph 7)
OB "and launched a newspaper where for 15 years he published
his views." ( Paragraph 8)
OC "his growing prestige gave him resonance in politics" (
Paragraph 9)
D "Douglass opened a dialogue with the president-elect" (
Paragraph 10)
Commonlit = ABOLISHING SLAVERY: THE EFFORTS OF FREDERICK DOUGLASS AND ABRAHAM LINCOLN
Answer:
C
Explanation:
.
The quote from the text that best supports the answer to Part A is as follows:
"his growing prestige gave him resonance in politics" (Paragraph 9).Thus, the correct option for this question is C.
What is a Quote?A quote may be characterized as a sequence of repeating the exact words of a speaker or an author. It is also a passage or statement repeated in this way. Quote means to cite something as a form of proof. The quote has several other senses as a verb and a noun.
According to the context of this question, the quote may be governed by the continuous repetition of a sentence, phrase, or passage from speech or text that someone has said or written.
In oral speech, it is the representation of an utterance (i.e. of something that a speaker actually said) that is introduced by a quotative marker, such as a verb saying.
Therefore, growing prestige gave him resonance in politics is the quote from the text that best supports the answer to Part A. Thus, the correct option for this question is C.
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Which cellular process would be affected first if the structure labeled 3 were
destroyed?
Answer:
Photosynthesis
Explanation:
asked my teacher
the opening in the iris through which light passes is the:
Answer:
Pupil
Explanation:
Which of the following is NOT a disadvantage of asexual reproduction?
A. Does not need a mate
B. Little genetic variation
C. Mutations can occur
D. All susceptible disease
Answer:
A
Explanation:
It is an advantage to not need a mate so the organism doesnt need to spend as long looking for one
Hope that helps
Answer:
A. Does not need a mate
Explanation:
Had to change my answer so nobody got it wrong
What is the main difference between migration, immigration, and emigration?
Answer Migration, in turn, covers both immigration and emigration. Another key difference is, immigration is permanent while migration doesn’t have to be. People who travel and stay in a country for a few months — for instance, because of a seasonal job they have — are also called migrants.
Explanation:
How does carbon atom work on plants
Answer: Carbon moves from the atmosphere to plants. In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide (CO2). Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth.This energy makes carbon molecules an excellent source of fuel for all living things. During photosynthesis, plants absorb carbon dioxide and sunlight to create fuel glucose and other sugars for building plant structures. This process forms the foundation of the fast (biological) carbon cycle.
Explanation: (credits to the internet) Hope this helped! <3
Why are leaves green: