Answer:
True. Lol.
Explanation:
Which era makes up the vast majority of Earth's history?
O A. Mesozoic
O B. Palezoic
O C. Cenozoic
O D. Precambrian
Answer:
Precambrian era is the longest era in the Earth's history. It began 4600 million years ago and ended about 540 million years ago.
Explanation:
Precambrian era makes up the vast majority of Earth's history. So, the correct option is D.
What was Precambrian era?The majority of the history of the planet occurs during the Precambrian epoch. The Precambrian, which occurs before the current Phanerozoic Aeon, is the earliest period in Earth's history. The Cambrian, the earliest period of the Phanerozoic Aeon, is named after Cambria, the Latinized name for Wales, where rocks of this era were first investigated, hence the name "Precambrian."
The Precambrian period is known as the "Age of Early Life." The Precambrian period saw the formation of continents, the emergence of our current atmosphere, and the evolution and flourishing of early life. The world's oceans were home to soft-bodied animals like worms and jellyfish, while the land remained sterile.
Therefore, the correct option is D.
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A healthy diet consists of carbohydrates, fats, and proteins. Proteins are broken down into amino acids that are recombined to make many of the body's structures, such as muscle. Eating protein regularly is of utmost importance because ____________.
Answer:
"Protein is an important component of every cell in the body. ... Your body uses protein to build and repair tissues. You also use protein to make enzymes, hormones, and other body chemicals. Protein is an important building block of bones, muscles, cartilage, skin, and blood."
"They must be consumed in the diet. Everyone needs 8 of these amino acids: isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. Infants also need a 9th one, histidine.
The percentage of protein the body can use to synthesize essential amino acids varies from protein to protein. The body can use 100% of the protein in egg and a high percentage of the proteins in milk and meats. The body can use a little less than half of the protein in most vegetables and cereals.
The body needs protein to maintain and replace tissues and to function and grow. Protein is not usually used for energy. However, if the body is not getting enough calories from other nutrients or from the fat stored in the body, protein is used for energy. If more protein is consumed than is needed, the body breaks the protein down and stores its components as fat.
The body contains large amounts of protein. Protein, the main building block in the body, is the primary component of most cells. For example, muscle, connective tissues, and skin are all built of protein.
Adults need to eat about 60 grams of protein per day (0.8 grams per kilogram of weight or 10 to 15% of total calories). Adults who are trying to build muscle need slightly more. Children also need more because they are growing. People who are limiting calories to lose weight typically need a higher amount of protein to prevent loss of muscle while they are losing weight. "
Explanation:
Hope i helped!
PLEASE HELP!! ASAP!! I JUST NEED THE ANSWER!!! I WILL MARK YOU BRAINLIEST!!!
Which one of the following most accurately demonstrates the flow of energy in an ecosystem?
a
sun's light > predators > producers
b
producers > predators > sun's light
c
sun's light > producers > predators
d
predators > sun's light > producers
Answer:
The answer is C .
Explanation:
As the producer gets sunlight from the Sun to produce its own food.
Predators gets food from the producer.
Answer:
C.
Explanation:
Which of the following occur in a maple tree growing in a temperate climate in response to increasing cold weather? Choose three correct
answers.
A. Auxin production stimulate one final growth spurt before winter arrives,
B. The chlorophyll in the leaves break down, revealing yellow and red pigments that had been masked by the green pigments.
C. Xylem and phloem fill with ions and organic substances that prevent freezing.
D. Meristems form thick scales to protect next year's buds from cold winter temperatures,
Answer: Option A, C and D.
Explanation:
Cold temperature affects plants that cannot adapt to it and can eventually lead to their deaths.
If the temperature, and therefore the metabolism, remain low for an extended period, plant quality will suffer, and death may occur. A period of cold weather may also alter plant growth, as when certain vegetables “bolt,” or produce seed stalks, in response to several days at low temperatures
But maple plants in temperate region has develop some characteristics or adaptions that help its survive cold temperatures. Maple plants can tolerate frost and light freezes for short duration because they are cool plants and development characteristics to do so.
Auxins in them stimulate one final spurt before winter. Their xylems and phloems are filled with ions that prevent freezing.
They have a thick meristems which form thick scales to protect next year's buds from cold winter temperatures,
which substance is a reactant in photosynthesis
Answer:
carbon dioxide and water
Explanation:
Carbon dioxide and water are reactants to photosynthesis.
i need some help plz
Answer:
C. A sperm fused w/ an egg
Explanation:
This is the definition of a zygote.
A. is a blastula.
B. is simply a gamete found in females.
C. is the answer.
D. is the placenta.
HELP ASAP!!!!
Describe a habitat in ur community that would support non vascular plant!!!!
Moist soils, Damp walls and mud regions where the water is not in limiting conditions are best suited for the growth of non vascular plants as they can not absorb and transport water to taller aerial organs.
would really appreciate a brainliest! Hope this helped! =)
Question 6 (1 point) ✓ Saved
Having 1 leader CAN help to get through a task and reduce arguing
True
False
Which of the following conclusions is suggested by the map
Explain in detail the life cycle of the metamorphosis of amphibians.
Amphibians, like frogs and newts, have a slightly more complicated life cycle. They undergo a metamorphosis (a big change): they are born (either alive from their mother or hatched from eggs)
I need help ASAP please
I WILL MAR BRAINLIEST
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Which term describes this reaction?
A skeletal diagram of a branched chain of carbons with 1 carbon bonded to O H; right arrow with H 2 S O 4 above and heat below, skeletal diagram with 2 carbons double bonded and branches above left and right and below left and right.
addition
condensation
elimination
substitution
Answer:
a- addition
Explanation:
Answer:
addition
Explanation: i said so
HELP PLS!!!!!!!!!!!!
A good environmental decision _____.
has no ecological costs
discounts the environmental costs
should have more benefits than costs
has only environmental benefits
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Which of the following statements are not true of carbohydrates?
A. Triglycerides are the most common type.
B. Monosacharrides, disacharrides, and polysacharrides are the most common types.
C. They are the most readily available source of energy for organisms.
D. Certain carbohydrates are enzymes or catalysts.
Answer:
this is very helpful to you
Explanation:
thank you
Two organisms that are closely
related would have
Answer:
Very similar DNA sequences
Explanation:
Two organisms that have related should have Very similar DNA sequences
Name two organisms that are related?The molecule i.e. inside cells that comprise of the genetic information and are responsible for the development and function of an organism. DNA or deoxyribonucleic acid represent the long molecule that comprise of our unique genetic code. Nearly each & every cell in a person's body should have similar DNA. Due to this, it has the same DNA sequence.
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What percent of the offspring will be white , if we cross two pink tulips? 100 % 25 % 50 %
Which structure in the diagram below is a muscle that contracts during
inhalation?
Larynx
D
Pharynx
C
Lung
B
А
Answer:
Lung
Explanation:
Lungs expand to pull oxygen into the body and contract to push it back out. The larynx is known as the voice box which is an air way passage to the lungs and a pharanx is membrane lined cavity behind the nose and mouth. Neither of these really expand or contact during inhalation so the answer is Lungs.
Which best explains why earthquakes sometimes occur in the same locations as mid-ocean ridges and rift valleys
Answer:
The reason why earthquakes sometimes occur in the same locations as mid-ocean ridges and rift valleys securely is:
Active tectonic plate edges are found at these locations.Explanation:
Earthquakes are caused by the release of energy that occurs regularly at the edges of tectonic plates, which with their movement allow the release of said energy, which later translates into an earthquake. In simpler words, imagine that tectonic plates are pieces of a domino together next to each other trying not to leave space, each union between one piece and another is a possible focus of energy release if these pieces move, and if that happened, whatever was on them would feel an earthquake or tremor.
There are places that are much more prone to earthquakes than others, for example, San Andreas Fault, which is heard a lot by the great earthquake it could cause in California.
Answer:
Faults form because crust gets cracked when plates move apart along divergent plate boundaries.
Explanation:
Just took the quiz and got it right. Believe me on this.
The membrane that lines the thoracic cavity walls is the
Which of the following groups of parrots is most likely in Hardy-Weinberg equilibrium?
A. A group with 50 DD parrots, 30 Dd parrots, and 20 dd parrots.
B. A group with 30 DD parrots, 40 Dd parrots, and 30 dd parrots.
C. A group with 25 DD parrots, 50 Dd parrots, and 25 dd parrots.
D. A group with 50 DD parrots, 25 Dd parrots, and 25 dd parrots.
Answer:
B. A group with 30 DD parrots, 40 Dd parrots, and 30 dd parrots.
A group with 30 DD parrots, 40 Dd parrots, and 30 dd parrots is most likely in Hardy-Weinberg equilibrium.
What do you mean by Hardy-Weinberg equilibrium?The Hardy–Weinberg principle, also known as the Hardy–Weinberg equilibrium, model, theorem, or law, states that allele and genotype frequencies in a population will remain constant from generation to generation.
The Hardy-Weinberg equilibrium is a principle stating that the genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.
For populations in the Hardy-Weinberg equilibrium, the equation connects allele frequencies to genotype frequencies. This equation allows us to compare a population's genetic structure in reality over time to the expected genetic structure.
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Comparing the skeletons of which of the following fish would
best show the evolution of a fish species?
a male fish and a female fish that could produce offspring
the same fish just before it received a cut and after it healed
a fish that lived recently and a fish that lived a long time ago
the same fish just after it hatched and when it was full-grown
Answer:
C. a fish that lived recently and a fish that lived a long time ago
Good luck with it :)
A recessive allele is expressed if there is no dominant allele present.
A) True B) False
Answer:
A) True
Explanation:
individuals joining a population is an example of
What is a purine and a pyrimidine? Name them.
Answer:
Purines and Pyrimidines are nitrogenous bases that make up the two different kinds of nucleotide bases in DNA and RNA. The two-carbon nitrogen ring bases (adenine and guanine) are purines, while the one-carbon nitrogen ring bases (thymine and cytosine) are pyrimidines.
Explanation:
Oil is widely used because it...
Answer:
Oil and gas are used widely in modern life. Oil fuels the cars, trucks and planes that underpin modern economies and lifestyles. Nearly all pesticides and many fertilisers are made from oil or oil byproducts. Gas provides electricity and is also used for cooking, heating houses and buildings, and heating water.
Answer: because it is cheap, easily transported, has a high net energy, AND low cost
Why does the northern hemisphere experience Spring in March, while the Southern Hemisphere experiences fall?
Explanation:
because the tilt of the earth on its axis
Answer:
The Sun is directly overhead in the Northern Hemisphere in March The Southern Hemisphere receives more direct rays from the Sun in March. The Northern and Southern Hemispheres get the same amount of energy from the Sun in March.
Explanation:
i hope this makes sense and helps out a little bit :))
Example of how organisms that were previously thought of as related are actually more genetically related to organisms outside their species?
Answer:
Explanation:
Examples includes the relationships between chimpanzees, gorillas and humans. It is actually believed that the chimpanzees are more closely related to humans. About 99% of ther genome is thought similar to humans while for the gorillas about 98%.
But then, it is thought that chimpanzees and gorillas should be closely related to each other than to humans, but comparison of their genomes has shown that across 15% of the gorillas genome, they share a closer relationship with humans than with chimpanzees.
describe why you don't look like an elephant
need help with this
Draw a cladogram that best represents the possible evolutionary relationship between species A, B, and C
And three animals that could match this phylogenetic tree.
Answer:
Monotremes, marsupials, and placentals are the three animals that could match this phylogenetic tree.
Explanation:
Monotremes, marsupials, and placentals belong from a common ancestor. Those organisms which have one common ancestor are also called monophyletic. These animals have some changes which occurs with the passage of time but most of characters are similar to each other. In placentals animals placenta is present while in Monotremes and marsupials this placenta is absent.
