In the early 1900s Germany geologist alfred wegener began to question how the structure of Earth formed over time he proposed the theory of continental drift to suggest that all continents were once connected and have drifted to their current location over time. What was the main reason that wegener theory received a lot of radical from the scientific community
Answer:
He did not give a method on how the continents moved
Explanation:
In 1912, Alfred Wegener proposed the idea that the continents are slowly drifting around the Earth. This hypothesis was known as the continental drift. Wegener proposed that the Earth rotation might have been the cause for which the continents move to separate from each other. However, nowadays it is well-known that continents are landmasses localized on tectonic plates that move and interact with each other (and it is referred to as plate tectonics).
Provide evidence to support the claim that viruses fall on the border between living and nonliving.
Answer:
Just like living organisms, viruses use genetic material such as DNA or RNA, but unlike living things, they cannot reproduce using mitosis, binary fission or meiosis. Instead, they simply insert the genetic material into a living cell and then replicate their genetic material along with the cell's in order to create more viruses.
Most mammal cells divide at a rate of
Mammals have a slow rate of division that is between 12 and 24 hours. These cellular divisions are asynchronous. Zygotic transcription starts at the two-, four-, or eight-cell stage. Cleavage is holoblastic and rotational.
Define the term hominin.
Answer:
a primate of a taxonomic tribe ( Hominini ), which comprises those species regarded as human, directly ancestral to humans, or very closely related to humans.
I hope it helps
Thank U
[tex]\red{Answer:-}[/tex]
✭The Hominini, or hominins, form a taxonomic tribe of the subfamily Homininae ("hominines"). Hominini includes the extant genera Homo (humans) and Pan (Chimpanzees and Bonobos), but excludes the genus Gorilla (gorillas).
✭The term was originally introduced by John Edward Gray (1824), long before any details on the speciation of Pan and Homo were known. Gray's tribe Hominini by definition includes both Pan and Homo. This definition is still adhered to in the proposal by Mann and Weiss (1996), which divides Hominini into three subtribes, Panina (containing Pan), Hominina ("homininans", containing Homo "humans"), and Australopithecina (containing several extinct "australopithecine" genera).
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How does cognition and biology influence learning?
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Both Cognition and biology plays role in Conditioning and Learning
Cognitive aspects of learning refer to thinking processes and mental procedures involved in the learning process. Cognitive factors that influence learning range from basic learning processes, such as memorizing facts or information, to higher-level processes, such as understanding, application, analysis and evaluation.
Biological factors also play important role for example Aversion to a particular taste is conditioned only by pairing the taste (a conditioned stimulus) with nausea (an unconditioned stimulus). Generally, taste aversion is developed after ingestion of food that causes nausea, sickness, or vomiting. If taste is paired with other unconditioned stimuli, conditioning doesn’t occur. Another example is Instinctive drift or Instinctual drift. Any behavior is instinctive if it is performed without being based upon prior experience (that is, in the absence of learning), and is therefore an expression of innate biological factors.
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An organism that breaks down organic matter into simpler materials (like carbon dioxide) is called a decomposer. Decomposers absorb nutrients from living things or the organic matter they leave behind. They do not need to kill to get their food. Do your results suggest bears are decomposers? Explain your reasoning.
Answer:
No, bears are consumers
Explanation:
Both decomposers and consumers are heterotrophic organisms, i.e., they cannot produce their own food. There are four different classes of heterotrophic organisms: decomposers, herbivores, carnivores and omnivores. The decomposers are heterotrophic organisms that return nutrients to the soil from the organisms that break down. Moreover, bears are classified as omnivores (consumers) that need to kill to get their food. These animals obtain nutrients and energy from both plant and animal sources.
Answer:
Bears are consumers
Explanation:
A nerve cell that carries information back and forth from the environment and the central nervous system is a
A. Reflex
B. Gland
C. Medulla
D. Neuron
While washing her hair, Olivia noticed that she was losing a lot of hair. She visited a clinic, and the physician reassured her that her hair would grow back. How do you think Olivia's hair will grow back?
Answer:
ok so i think that she would lose all her hair then it will start to grow back
Explanation:
Answer:
her hair will be back in my opinun but it will not be same as previous.
_______ species are the first species to colonies disturbed or newly created environment
What are the reactants and products of the light independent reactions?
Answer:
In photosynthesis, oxygen, carbon dioxide, ATP, and NADPH are reactants. GA3P and water are products. In photosynthesis, chlorophyll, water, and carbon dioxide are reactants.
The reactants and products of the light-dependent reactions of photosynthesis would be as follows:
Reactant: water, radiant energy, ADP, and NADP+
Products: oxygen gas, ATP, and NADPH
In the light reaction, radiant energy excites the electrons of chlorophyll molecules. The excitation causes the electrons to be knocked off the chlorophyll molecule and the energy of the electrons is used to convert ADP to ATP and NADP+ to NADPH.
The space left by the excited electrons is filled by electrons from water molecules with oxygen from the water molecule being released as a result.
More on the light reaction of photosynthesis can be found here: https://brainly.com/question/16710103
In your own words, explain why an organism would require all four of the main biomolecules. What would occur if any of these biomolecules were missing? Are any of the biomolecules more important than the others? Is there one that we could live without?
Answer:
I like yo cut gggggggggggg
EXTRA PTS* Liquids and gases both do not have a definite ______
Answer:
shape
Explanation:
gases and liquids have very spread out particles and contain no particular shape. instead, they take the shape of whatever contains them. on the other side, a solid has a particular shape as the molecules are close together.
How many electrons must get passed down the Electron Transport Chain before energy is generated?
Answer:
4 electrons
Explanation:
Electron transport chain is defined as the series of process in which electron transfer takes place across a membrane. It is consists of enzymes, peptides, and other molecules.
There are 4 electrons that passed down the Electron Transport Chain before energy is generated. These Four electrons further reduce each molecule of oxygen. Oxygen binds with free proton and form water and move across the membrane to form ATP.
Hence, the correct answer is "4 electrons".
Answer: 2
Explanation:
Trust me I just took the test and got it wrong cuz I put 4
Which of the following is true about the structure of water?
1. It is held together by an ionic bond
2. It is nonpolar
3. It is polar
4. It has one positive hydrogen attached to one negative oxygen
Answer:
3.) It is polar
Explanation:
Water is polar covalently bonded within the molecule. This unequal sharing of the electrons results in a slightly positive and a slightly negative side of the molecule. Other molecules, such as Ethane, are nonpolar, having neither a positive nor a negative side.
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Directions: Answers must be in essay form. Outline form is not acceptable. Labeled diagrams may be used to supplement discussion, but in no case will a diagram alone suffice. It is important that
you read each question completely before you begin.
Proteins-large complex molecules-are major building blocks of all living organisms. Discuss the following in relation to proteins.
The chemical composition and levels of structure of proteins
Subm
Answer and Explanation:
Protein is one of the most important molecules in our organism, being present in the composition of all elements, in addition to participating in several metabolic processes. This importance creates the need to study this molecule, however, to study it it is necessary to know the composition chemistry and the levels of structure it presents.
The chemical composition of proteins is related to amino acids, since protein is formed by them. In this case, we can say that the proteins have the same composition as the amino acids containing carboxylic acid and different amino groups, which is what determines the name and function of the amino acid.
In addition to chemical composition, the structure levels of proteins are extremely important, as they only function at a specific structural level. As for these levels, proteins can have a primary structure (there are more than two amino acids organized in a linear row), a secondary structure (when the primary structure turns into a helix species), a tertiary structure (formed by a more intense folding of the secondary structure providing the appearance of helices and leaves) and quarternary structure (when several tertiary structures are joined, allowing folding at the three-dimensional level. This is the functional structure of the protein).
A student wants to compare how long a flashlight will continue to shine using different brands of batteries. How can the student make sure that the test is fair?
Answer:
start with unused fresh out of the pack batteries
Answer:
THE TYPE OF FLASHLIGHT USED
Explanation:
1. List the 4 basic mechanisms of evolutionary change?
Answer:
natural selectionmutationgenetic driftgene flowMechanisms of evolution correspond to violations of different Hardy-Weinberg assumptions.
During Mitosis, in which phase do two nuclei form?
A.prophase
B.anaphase
C.telophase
D.metaphase
Can someone help me :)
Answer:
C. magnetic field
Explanation:
Earth is like a giant magnet with a North and South Pole. However, the magnetic North and South Pole are not aligned with the Geographic North and South Pole. ... The blue lines show where the magnetic field dips into the Earth and the red lines show where the magnetic field emerges from the Earth.
Answer:
I think it would be C, since the north and south magnets attract. Magnetic field
occurs when iron, or another magnets, get toget her, so I‘d say it’s C.
Describe the levels of protein folding- primary, secondary, tertiary & quaternary structure of proteins.
simplified pls
Answer:
The
different levels of protein structure are known as primary, secondary, tertiary, and quaternary structure. The primary structure is the sequence of amino acids that make up a polypeptide chain. ... The exact order of the amino acids in a specific protein is the primary sequence for that protein.
which of the following best describes the trend represented by this graph?
a. Lemming populations increase because of larger snowy owl populations
b. Snowy owl populations increase because of smaller lemming populations
c. Snowy owl populations increases because of larger lemming populations
d. Lemming population decreased because of smaller snowy owl populations
plsss help...
Answer:
Jan 21, 2014 — Could lemming abundance also be a key factor in the snowy owl ... these rodents because the causes of lemming population cycles are still not ... Fox, skua, and snowy owl populations increase as lemming prey increases. ... Researchers predict a trend of increasing snow depth in this region as a result of ...
HEELLPPP QUICKKK PLSSSS
10 points
Answer:
a
I THINK SORRY IF WRONG NOT 100% SURE
Explanation:
it is a because the other guy said so
what units are used in the standard system
If an H is for tall trait which is dominant and h is the recessive trait for short,
which of the following crosses will result in 1:1 tall:short progeny (offspring).
A) HH Xhh
B) hh X hh
C) Hh X hh
D) Hh X Hh
Answer:
The cross that guarantees a height trait ratio in the offspring of 1 : 1 high/low is Hh X hh (option C).
Explanation:
For a characteristic such as size, where tall (H) is the dominant trait and short (h) is the recessive, the crossing of a tall heterozygous (Hh) individual with a short one will have a probability that half of the offspring will be tall and the other half short.
This can be demonstrated with a Punnett square:
Cross Hh X hh
Alleles H h
h Hh hh
h Hh hh
Based on this result, half of the offspring will be tall, with genotype Hh, and the other half short, with genotype hh, which corresponds to a tall : short ratio of 1 : 1.
In the other options is not possible to obtain this result:
A) HH Xhh = 100% Hh.
B) hh X hh = 100% hh.
D) Hh X Hh = 50% Hh, 25% HH and 25% hh.
24. A wolf is a KEYSTONE species. Explain how the wolf indirectly affects the
population numbers of plants.
Pls I need these answers ASAP
Answer:
Okay, from what i understand, you should make a column with the kind of snake, and another one with Mortality percentage from the venom of those snake's bites.
Use the numbers to guide yourself... for example
Kind of Snake I Mortality Percentage
(1)southern United States copperhead I (1) less than 1%
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Which sentence correctly explains the process and conditions needed for sleet to form? (15 pointsss :)
Group of answer choices:
A. During thunderstorms and extremely cold temperatures, water droplets freeze in layers and form balls or chunks of ice.
B. Both the temperature of the cloud and the temperature of the air must be below freezing in order for the flakes to fall from the sky.
C. A liquid form of precipitation that is formed in above freezing temperatures becomes heavier as it falls the ground in the form of raindrops.
D. Ice crystals melt as they fall through a warm layer of air and then refreeze into small ice pellets as they pass through a colder layer of air.
Answer:
By researching, I would think that the answer is D. Ice crystals melt as they fall through a warm layer of air and then refreeze into small ice pellets as they pass through a colder layer of air.
Explanation:
During precipitation formation, if temperatures are at or below freezing, 0°C (32°F), at cloud level, water in the air freezes into ice crystals, and the crystals stick together to make snow. The snow starts to fall, and if the air column is freezing cold all the way down from the clouds to the ground, the precipitation stays frozen. It simply falls as snow.
Sometimes, however, a temperature inversion occurs. Normally, the temperature decreases with increasing altitude. A temperature inversion is when a layer of warm air intrudes between the ground and the clouds.
Under these conditions, when the falling snow reaches the layer of warm air, it melts. Then it hits the layer of cold air just above Earth’s surface and refreezes. This all happens very fast, and the result is tiny ice pellets called sleet.
Answer:
D - Ice crystals melt as they fall through a warm layer of air and then refreeze into small ice pellets as they pass through a colder layer of air.
Explanation:
Sleet occurs when snowflakes only partially melt when they fall through a shallow layer of warm air. These slushy drops freeze as they descend through a deep layer of freezing air above the surface. They eventually reach the ground as frozen raindrops that bounce on impact.
Help me answer that question and how are you supposed to know which one is the predator and the prey like how can you tell?
Answer:
predator is blue, prey is red
Explanation:
when the amount of predators increase, the blue line rises, the red line lowers. when there is more predators there is going to be a less amount of prey.
Where do I put the 4 protons
Answer:
the center in the nucleus.
Explanation:
HELP PLZZ
Lipids have several functions, which include
A.protection from water loss
B.control chemical reactions
C.help fight disease
D.insulation
Answer:
D . Insulation
Explanation: