What causes black holes to form?
Which two types of RNA are joined together by base pairing a codon with an anticodon ?
A- tRNA and rRNA
B- mRNA and rRNA
C- tRNA and itself
D- mRNA and tRNA
Answer:tRNA (translate rna) and mRNA(messenger rna).
Explanation:
Which definition is the best for “semipermeable membrane”?
It is a barrier that prevents materials from moving from one side to the other.
It is a barrier that allows materials to move freely from one side to the other.
It is a barrier with tiny openings that let some, but not all, materials pass through.
It is a barrier that helps materials move from one side to the other.
Answer:
C
Explanation:
Semi means partly
permeable means allowing liquids or gases to pass through it
Semipermeable means allowing some, but not all, liquids or gases to pass through it.
Answer:
c) It is a barrier with tiny openings that let some, but not all, materials pass through.
Explanation:
The prefix "semi-" means "some; partially". "Permeable" means "allow to pass through". Using your knowledge of the purpose of the membrane and the meaning of the word "semi-permeable", you would use context to come to the conclusion that the correct answer is c) It is a barrier with tiny openings that let some, but not all, materials pass through.
Why are nucleic acids essential for life
Answer:
Nucleic acids are the most important macromolecules for the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell.
Please i need help with this....
Answer:
Punnett squares
W is dominant
w is recessive
W w
W WW Ww
w Ww ww
Explanation:
Punnett squares
W is dominant
w is recessive
W w
W WW Ww
w Ww ww
1. List 4 classes of animals reared in the Caribbean ___________________________________________________________ ___________________________________________________________ 2. Identify 1 class of animal stated above and state the purpose(s) for rearing ___________________________________________________________ ___________________________________________________________ 3. Define the following terms: Breed, Species, Herd ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ 4. To which class of animal do the following terms refer? (a) Bovine: ___________________________________ (b)Ovine: ____________________________________ (c) Equine: ____________________
Answer:
1. Pigs, Sheep, Goats, Cattle
2. The purpose of rearing pigs is to utilize them for human food but also supply skin, fat and other materials for use as clothing or leather, ingredients for processed foods, cosmetics, and medical use.
3. Breeding - when animals mate and then produce offspring.
Species - Organisms that have lots of characteristics in common, and can mate to produce fertile offspring.
Herd - a social group of certain animals of the same species, either wild or domestic.
Explanation:
4. Bovine - Cattle, Goats, Pigs
Ovine - Sheep
Equine - Horses and other members of the horse family
pls answer this it's due today
Answer:
option b is the right one
Which part of cell division is different in plant and animal cells?
Answer:
plant cells form the cell plate in between the two daughter cells in mitosis,
what part of the heart pumps blood to the rest of the body
Answer:
the heart pumps the blood thru thr body
Summarize how the overharvesting of a single species,such as baleen whales,can affect an entire ecosystem.
Answer:
Overharvesting can have a negative impact on an entire species because it can alter food web relationships. For example, if there are too many whales, many organisms may lose their food source and homes, or even worse, go extinct!Source:
https://brainly.com/question/11134378How does 02 enter the mitochondria
How does oxygen enter the mitochondrial matrix? The electrons taken from NADH and FADH are passed to several other proteins in the inner mitochondrial membrane. Ultimately, they are passed to oxygen (O2). O2 becomes two molecules of water (H2O) after receiving four electrons. This is how oxygen is used by cell respiration.
the cell body of the preganglionic neuron in this figure could be located in the __________.
The cell body of the preganglionic neuron in this figure could be located in
the central nervous system.
Preganglionic neuron are nerve fibers which connect the central nervous
system to the ganglia. This connection help in the relay of impulses
between different components of the nervous system.
All preganglionic neuron are located in the brain or spinal cord which make
up the central nervous system which explains why it's the most appropriate
choice.
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Please label this photo pleaseee immediately
Answer: The answer is in the image.
Practice: Biochemical Reactions Summary
Photosynthesis
Chemical Equation:
Step 1: Light-
Reaction aka
Where:
What:
Why:
Step 2: Light-
Reaction aka
Where:
What:
Why:
Answer:
Explanation:
There are two stages to photosynthesis: Reactions of light and darkness. Light-Reaction takes place in thylakoid membrane.
What is Light-Reaction takes place during Photosynthesis?Autotrophic plants produce their own food through a process called photosynthesis. Sunlight, chlorophyll, CO2, and water are four crucial components needed for this process. It is a response that is light dependent.
In plants and some other creatures, a process known as the "Dark Reaction" harnesses the energy from the sun to change carbon dioxide and water into glucose (a sugar) and oxygen.
Therefore, a sequence of chemical events known as the "Light Reaction of Photosynthesis" are what is needed for the pigment found in leaves, such as chlorophyll, to transform light energy into chemical energy in the form of ATP and NADPH.
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Which macronutrient promotes root growth?
Answer: Phosphorus (P)
Explanation: Phosphorus is one of the important macronutrients of plants which promotes the plant root growth.
Phosphorus in good amount would lead to -
• Extensive roots
• Fewer shoots
• Stunted growth
Whereas if the plant deficits Phosphorus then it would lead to
• Poor root growth
• Few flowers or aborted flowers
• No fruits
What are the different variations of genes called?
Answer:
Alleles :)
Explanation:
I need help fast pls i only have 5 min so pls HELP
Answer:
I think it's c maybe not sure though
Which statement about US greenhouse gas emissions is supported by the bar graph? Emissions decreased every year between 2005 and 2014. Emissions increased substantially between 2005 and 2014. After peaking in 2007, emissions dropped every year through 2014. After peaking in 2007, emissions went up and down through 2014.
Countries often have records of gas emissions in their county. The statement about US greenhouse gas emissions is supported by the bar graph is that after peaking in 2007, emissions went up and down through 2014.
Greenhouse gas emissions often takes place due to the activities of human. These activities acts as a catalyst to powerup the greenhouse effect, causing climate changes.Recorded data of gas emissions has shown that after it peaked in 2007, reduction is said to be of averaged 1.3% per year but the data of U.S. energy-related CO2 emissions in 2019 shows that it was 1.8% greater than in 1990.
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Answer:
D. After peaking in 2007, emissions went up and down through 2014.
Explanation:
EDGE2021
In an ecosystem, organisms use up
chemical energy and most of the
energy is then lost to the
environment as
A. light
B. heat
C. photons
How many chromosomes will there be in a human zygote?
Which phrases are true of only the mantle?
made of three layers
has a tarry layer
made of two layers
has a molten outer layer
has a solid outer layer
what is supplemental health insurance for elders called?
Answer: Medigap
Explanation:
Explain why we need more research about the structure and condition of the worlds ecosystem.
Answer:
If we want to know how to fix problems in our environment, we need to know how it was before it got the way that it is today.
Explanation:
That is the explanation, please mark as brainliest
Environmental degradation must be reduced, so by the baseline data of the world's ecosystem must be researched.
What is the world's ecosystem?Ecosystem defines the interaction between living (biotic) components and nonliving (abiotic) components. A living system depends on nonliving factors around them.
Temperature, soil, and light are all components that are necessary for the living system to reproduce and survive. Plants can not do photosynthesis without light and also get minerals and water from the soil.
We need to understand the baseline of the world's ecosystem, so climate-changing conditions can be reduced. Global warming is a critical condition for the ecosystem and can be reduced by research.
Therefore baseline data on the world's ecosystem must be researched to improve environmental conditions.
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Which of the following statements about cells is NOT true
Answer:
umm there are no options?
Explanation:
Answer:
What is the answer choices
Explanation:
what is the relationship between monosaccharides and disaccharides
A disaccharide is the sugar formed when two monosaccharides are joined by glycosidic linkage. Like monosaccharides, disaccharides are simple sugars soluble in water. Three common examples are sucrose, lactose, and maltose.
Explain the "air-sea gas exchange" and what gases are involved.
Answer:
Air-sea exchange is a physio-chemical process and is important for the cycling of gases such as carbon dioxide, methane, nitrous oxide, dimethylsulfide and ammonia
What is the wresting move for a war front
Answer:
I think it's a Power slam-
Explanation:
Sorry if it's wrong
Which effect is most likely from a hurricane? damaged homes due to flooding forest fires due to lightning strikes cars sucked in due to a low-pressure center damaged personal property due to hail.
Answer:
A damaged homes due to flooding
Explanation:
Hurricanes cause heavy rains and strong winds. The heavy rain causes water to rise and therefore, homes are damaged by it.
A natural calamity in which a low pressure centered low atmospheric air movement along with strong winds and rain occurs is called a hurricane it is also known as a tropical cyclone.
The effect that most likely occurs due to a hurricane is:
Option A. Damaged houses due to flooding.
The effect can be explained as:
The hurricane can cause storm surge in which the levels of the sea rises than normal and causes high tides that can lead to floods.The heavy rainfalls and typhoons caused by hurricanes lead to floods that damage homes.Hail and forest fires due to lightning strikes are not caused by hurricanes and hence are not affected by the hurricane.Therefore, hurricane causes flooding.
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The greatest number of relationships between the
organisms in an ecosystem is best shown in
A. a food chain
B. an energy pyramid
C. a food web
D. an ecological succession diagram
The greatest number of relationships between the organisms in an ecosystem is best shown in a food web. Thus, the correct option is C.
What is a Food web?A food web consists of all the food chains which are present in a single ecosystem. Each of the living thing in an ecosystem is a part of multiple food chains. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem.
For example- A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass. It is a food web that shows the many different paths plants and animals are connected.
Therefore, the correct option is C.
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who won the nobel prize for discovering the structure of dna
Answer:
James Watson, Francis Crick , Maurice Wilkins and Rosalind Franklin