Answer:
Genes
Explanation:
The hereditary information (inherited information) is contained in genes, located in the chromosomes of each cell.
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Why is RNA thought to have been the first genetic material? A. RNA has been found on meteorites. B. Primitive organisms, such as some viruses, have RNA as their genetic material. C. RNA is capable of self-replication D. RNA is structurally simpler than DNA.
Answer:
B.
Explanation:
Because if they have traces of RNA in them, then it might be the first genetic material
1. Rocky Mountain spotted fever is a bacterial infection transmitted by a tick. What type of symbiosis occurs between a deer and the tick?
A. Mutualism
B. Commensalism
C. Parasitism
2. The oxpecker is a bird that eats the insects off the back of a zebra or rhino? What type of a symbiotic relationship is this?
A. Mutualism
B. Commensalism
C. Parasitism
3. Humans have “good” bacteria in their digestive tract, which assists in digesting food. The bacteria thrive there. What type of a symbiotic relationship is this?
A. Mutualism
B. Commensalism
C. Parasitism
4. Barnacles attach themselves to whales in order to be where food is available and also for transportation. This does not hurt the whale? What type of a symbiotic relationship is this?
A. Mutualism
B. Commensalism
C. Parasitism
Mutualism examples
Answer:
1. C
2. A
3. A
4. B
Explanation:
hope this helps. ♥️
Parasitism is the type of symbiosis that occurs between a deer and the tick. So, the correct option is C. This is because bacteria infect their host cell which is found in Deer.
What do you mean by Symbiosis?Symbiosis may be defined as a relative ecological association between the individuals of two or more different species.
The type of symbiotic relationship found between oxpecker and zebra is Mutualism. This is because oxpecker is able to get its prey (food), while zebra is benefitted from the removal of insects from their body. So, the correct option is A.
The type of symbiotic relationship between Humans and bacteria living in their digestive tract is Mutualism. This is because Humans are benefitted from bacteria as they assist in digesting food, while bacteria also benefit to find a proper place where unlimited food is available. So, the correct option is A.
The type of symbiotic relationship between Barnacles and whales is Commensalism. This is because Barnacles are benefitted from excess food and easy transportation, while whales are neither benefitted nor harmed by this relationship. So, the correct option is B.
Therefore, each of the questions are properly described above.
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Which organelle is the control center of the cell; contains DNA; only found in Eukaryotic cells?
A. Mitochondria
B. Nucleus
C. Lysosome
D. Ribosome
How do I get rid of my Self harm scars??
Boii do i sure wish i knew T^T
Does a candy bar, piece of beef, butter, or bread turn up with the color blue/black on a Lugol’s (starch) test?
Answer:
bread passes the test for starch
which of the following organisms obtain their energy from producers only
heterotrophs.
Explanation:
Organisms that obtain their energy from producers or other consumers are heterotrophs.
2. What is a gene? ________________________________________________________
3. What is the difference between gametes and body cells? ____________________________________________________________________________
4. Each person’s DNA is unique except for who?________________________________________________________________________
5. How does each gene code for a protein?__________________________________________________________________________________________________________________________________________________
6. Look at the picture of the nucleus, chromosome, and gene and infer what the relationship is of the three things? ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Please answer all questions
Answer:
1. generation or birth or gender) is a basic unit of heredity and a sequence of nucleotides in DNA that encodes the synthesis of a gene product, either RNA or protein.
2: 1. Body cells make up the body of any multicellular organism. On the other hand, a gamete is a sex cell that can either be a sperm or egg cell.
2. Body cells undergo the process of mitosis while gametes undergo a process called meiosis.
3. A body cell contains a complete number of chromosomes and is called a diploid cell while a gamete contains only half the number of chromosomes of its parent cell, and it is called a haploid cell.
3. Identical twins
4. nucleotide triplets
5. A gene is a sequence of nucleotide bases that specifies certain products; RNA or proteins. It is the segment of DNA that holds the information to build and maintain an organism's cell and also pass genetic traits to offspring. Hence, it is the molecular unit of heredity in living organisms.
The DNA is a long double-helical structure that stores the genetic information in our cells. It consists of two long polynucleotide chains composed of the four nucleotides subunits (A, C, G, T).
In order for the long strand of DNA to fit into the cell's nucleus, it is coiled around certain proteins called HISTONES to form Chromatin, which undergoes further coiling and organization to to linear CHROMOSOMES.
The chromosomes are structured within the nucleus, that are made up of the cell's genetic material (DNA). In eukaryotic cells, the nucleus houses the cell's DNA and directs protein synthesis (expression of the information encoded by genes).
Explanation:
Humans can use starch as an energy source but are unable to use cellulose for energy. Which
of the following best explains the difference in how these molecules are processed in the body?
Humans can chew starch but cannot chew cellulose.
Humans dissolve starch in blood plasma but cannot dissolve cellulose
Humans make an enzyme to digest starch but cannot digest cellulose
Human muscle cells can absorb starch but cannot absorb cellulose
Answer:
human make enzymes to digest starch
modern horses are larger than ancestral horses. this is an example of
Answer:
stabilizing selection
Explanation:
how is the scientific method used in earth science (it was due yesterday)
Answer: The steps used in scientific methods are to ask a question, form a hypothesis, test the hypothesis, analyze the results, draw conclusions, and communicate results. A controlled experiment tests only one factor at a time so that scientists can determine the effects of changes to just that one factor.
Answer:
The scientific method is the gold standard for exploring our natural world. You might have learned about it in school, but here’s a quick reminder: It’s the process that scientists use to understand everything from animal behavior to the forces that shape our planet—including climate change.
adventitious storage roots are seen in
a)Carrot
b)Sweet potato
c) Turnie
d)Radish
Answer:
[tex]a)Carrot [/tex]
...............
what is the electron transport chain
Answer:
The electron transport chain is a cluster of proteins that transfer electrons through a membrane within mitochondria to form a gradient of protons that drives the creation of adenosine triphosphate (ATP).
Explanation:
Brainliest Please!
if you were to take 10 breaths/min and inhaled about 600 ml/breath, your minute ventilation rate would be
reproduction in prokaryotes occurs primarily through the process known as
Reproduction in prokaryotes occurs primarily through the process known as Binary Fission.
after dogs, what is thought to be the first domesticated farm animal?
Answer:
sheep and goats
Explanation:
In a forest community, a shelf fungus and a slug live on the side of a decaying tree trunk. The fungus digests and absorbs materials from the tree, while the slug eats algae growing on the outside of the trunk. These organisms do not compete with one another because they occupy
A. the same habitat, but different niches
B. the same niche, but different habitats
C. the same niche and the same habitat
D. different habitats and different niches
The shelf fungus and slug in the forest community do not compete with each other as they have the same habitat, but different niches. Thus, option A is correct.
What are habitat and niche?Habitat is defined as the place where the species resides while the niche is the role of the specific organisms or the species in that particular habitat or environment. The niche includes the impact of the species on the habitat.
The shelf fungus and the slug both live on the side of the tree and hence have the same habitat but the fungus takes minerals from the tree and the slug from the algae making them differ in the niche.
Therefore, the fungus and slug have the same habitat but different niches.
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Plants from two different true-breeding P generation lines are crossed to one another and produce offspring. These offspring are allowed to self-fertilize, which results in production of the:
Answer:
F2 generation
Explanation:
considering the various theories, the energy used in forming organic molecules in the primitive atmosphere could have come from all except
Answer:
the correct answer is sound
Dan has a very large kidney stone that is not passing on its own. Which of the following may the doctor utilize?
Answer:
d. Any of the above
Explanation: is correct/post protected
How can we conserve WATER? describe in short.
Please answer as soon as possible pls I need help please
Explanation:
Turn off the faucet while brushing your teeth.
Only run the washing machine and dishwasher when you have a full load.
Use a low flow shower head and faucet aerators.
Fix leaks.
Install a dual flush or low flow toilet or put a conversion kit on your existing toilet.
True/False. All mutations are bad.
False.
There are several good mutations that have ensured the survival of species. Typically helpful mutations help the creature adapt to its environment or protect itself from predators.
I hope this helps! :)
While eating dinner, Isabelle starts choking on a grape. She can't cough, talk, or breathe. What should her mother do to help her?
*Heimlich maneuver
(or buy a LifeVac device to keep in your car for emergencies)
Answer:
c. Do the Heimlich maneuver.
Explanation: is correct. post protected
What organism aids your body with digestion?
Answer:
mouth, esophagus, stomach, small intestine, large intestine, rectum and anxs.
Which are examples of active transport?
Select all that apply.
exocytosis
phagocytosis
diffusion
pinocytosis
Answer:
Exocytosis, phagocytosis, and pinocytosis
Explanation:
Active transport is when energy is used to move substances across the cellular membrane.
Exocytosis requires energy to remove materials from the cell; it is active.
Phagocytosis also requires energy; it is active.
Diffusion isn't active because it moves materials down their concentration gradient and therefore it doesn't require energy.
Pinocytosis is a form of endocytosis and requires energy; it is active.
Which of the following statements defines ovulation?
Ovulation is when an immature ovum develops into a mature ovum.
*Ovulation is the release of a mature ovum, which occurs once each month.
Ovulation is the production of an ovum that occurs each month.
Ovulation is the monthly discharge of the uterine lining.
Answer:
b. Ovulation is the release of a mature ovum, which occurs once each month.
Explanation:is correct. post protected
Ovulation is the release of a mature ovum, which occurs once each month. The correct option is B.
What is ovulation?The process of an egg being released from the ovary is called ovulation. The egg is released and travels down the fallopian tube, where it remains for 12 to 24 hours before being fertilised.
Although ovulation is necessary for conception, more than simply an egg is required. For instance, there needs to be a clear path to the egg. A blocked fallopian tube prevents pregnancy from happening.
Around the time of ovulation, you could notice that your cervical mucus is wetter, clearer, and more slippery. After ovulation, there is a slight increase in body temperature that you might be able to measure with a thermometer.
Thus, the correct option is B.
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"Tall" "purple" and "wrinkled" are examples of?
Tall purple and wrinkled are the examples of Phenotypes.
What are phenotypes?The phenotype is the set of observable characteristics or traits of an organism. The term covers the organism's morphology or physical form and structure, its developmental processes, its biochemical and physiological properties, its behavior, and the products of behavior.
Moreover, the observable characteristics in an individual resulting from the expression of genes; the clinical presentation of an individual with a particular genotype.
Therefore, phenotype examples include earwax type, height, blood type, eye color, freckles, and hair color.
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Most of Earth's species of flowering plants depend on insects to pollinate their flowers.
True
Or
False
Answer:
True :)
Explanation:
Most species of flowering plants rely on vectors to move pollen and these vectors include insects, butterflies, birds, water and wind.
Create a new way to purify water
Answer:
boil
Explanation:
the earth’s_______and position relative to the________effects the lengths of_________and________.
*not multiple choice*
i need it asap. thanks!
distance
sun
day
night
The Earth's distance and position relative to the sun effects the lengths of day and night.
Phloem is used to transport sucrose and amino acids in plants. Sucrose is a carbohydrate. Describe the uses of carbohydrates and amino acids in plants.
Answer:
1. carbohydrates help to produce a part of cellulose. carbohydrate produces the vital source of energy, carbon skeletons for organic compounds, and storage of components.
2. Amino acids help in the ion transportation, modulation of stomatal opening, maintaining the level of detoxification.