Answer:
Nucleic Acid
Explanation:
Nucleic acids are the biopolymers, or large biomolecules, essential to all known forms of life. The term nucleic acid is the overall name for DNA and RNA. They are composed of nucleotides, which are the monomers made of three components: a 5-carbon sugar, a phosphate group and a nitrogenous base.
Which organelles make up animal cells?
Answer:
Organelles in animal cells include the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, and vacuoles.
Part A - Processes that contribute to genetic variation Meiosis guarantees that in a sexual life cycle, offspring will inherit one complete set of chromosomes (and their associated genes and traits) from each parent. The transmission of traits from parents to offspring is called heredity. Another important aspect of meiosis and the sexual life cycle is the role these processes play in contributing to genetic variation. Although offspring often resemble their parents, they are genetically different from both of their parents and from one another. The degree of variation may be tremendous. Which processes lead to genetic variation in sexually reproducing organisms
Answer:
independent assortment, crossing over and random fertilization
Explanation:
There are three mechanisms by which sexual reproduction increases genetic variation in progeny. First, random fertilization is the process by which gametes randomly combine in order to increase the possibilities for genetic variation. Second, the independent assortment refers to the process by which pairs of homologous chromosomes independently separate from one another during meiosis. Finally, crossing over, also known as recombination, is the process by which two homologous chromosomes' non-sister chromatids can exchange genetic material during meiosis I (prophase I).
1- carotenoid is a pigment that can be found in Chrysophytes
true
false
2- Diatoms are multicellular
true
false
Answer: 1. true
2. false
Explanation:
1. Chrysophytes can be defined as the algae that can be found in the lakes. They have photosynthetic pigments carotenoids which impart golden yellow color to these algae. They are unicellular and also have flagellum that help them in movement in water.
2. Diatoms are unicellular algae. They appear as single individual cells or may appear in colonies with other cells. They can take up any shape based on their alignment pattern. Each cell is surrounded by cell wall that is composed of silica called as frustule. They can be found in fresh or marine water.
Just a quick summary will do!:
A. Sickle Cell Anemia is caused by a base change in DNA. Describe how the base change results in a faulty protein being made.
B. Briefly explain the inheritance pattern of the condition.
Answer: a) The single base change mutation occurs at the beta chain of haemoglobin when glutamic acid is replaced with valine.
b) Sickle Cell Anemia is inherited in an autosomal recessive pattern.
Explanation:
Haemoglobin is a protein found in the red blood cells whose main function is to transport oxygen. Sickle Cell Anemia is a disorder caused by a base change in DNA beta chain of haemoglobin. The amino acid valine is substituted for glutamic acid at one point in each of the two beta chains. When this type of hemoglobin is exposed to low oxygen, it forms elongated crystals inside the red blood cells that are sometimes 15 micrometers in length. These make it almost impossible for the cell to pass through many small capillaries, and the spiked ends of the crystals are likely to rupture the cell membrane, leading to sickle cell anemia.
In describing the inheritance patterns of sickle cell anaemia, it is of autosomal recessive pattern. This means that the parent of the affected individual both carry one copy of the mutated gene, but they typically do not show signs and symptoms of the condition. The gene for normal red blood cell is dominant over the gene for abnormal red blood cell which is said to be recessive. A person who is a stickler should have the genotype SS.
which of carbs, fats ,minerals, proteins, vitamins, water are organic and which are inorganic
PLEASE HELP !!
How many moles are present in 21.2 g
hydrochloric acid, HCI?
A mother who has type A blood and father with type B blood have a child with type blood. They believe that the hospital has made a mistake and given them the wrong baby.
Answer:
So
Explanation:
What is the question here
Due to
certain traits do not demonstrate independent
assortment.
a Linkage
b Crossing-over
C Mutation
d None of the above
Check
Answer: linkage
Explanation: cK-12 says it’s right :)
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Put the following processes of protein synthesis in the correct order.
1.DNA strands unwind and separate
2.mRNA copies DNA according to complimentary base pairing.
3.mRNA leaves the nucleus
4.tRNA's anticodons bring amino acids to the corresponding mRNA codons
5.amino acids bind to each other making a protein
6.a stop codon is reached, the newly formed protein is released to go do its job for the cell
Answer:
1. DNA strands unwind and separate 2.mRNA leaves the nucleus 3.mRNA copies DNA according to complimentary base paring .4 tRNA anticodons bring amino acids to the corresponding mRNA codons. 5 amino acids bind to each other making a protein 6. a stop codon is reached, the newly formed protein is released to go do its job for the cell
1. The body of a person or other mammal is a complex organism. The structure of the body has several levels of organization. Which of the following lists the structural levels of the body from smallest to largest? *
A. cell → tissue → organ → organ system → organism
B. cell → organ → organ system → tissue → organism
C. organ → organ system → cell → tissue → organism
D. organ → organ system → tissue → cell → organism
Answer:
the answer would be A.
Explanation:
this would be because a cell is the smallest living thing, after cells, tissues are the next smallest thing, then it is an organ, because different tissues make up an organ, then multiple organs will create an organ system, and multiple organ systems create an organism.
The structure of the body has several levels of the organization, and the sequence is cell → tissue → organ → organ system → organism, hence option A is correct.
What is the body structure of a complex organism?The human body's biological functions are preserved at several levels of structural organization. The following levels are included: chemical, cellular, tissue, organ, organ system, and organismal.
The lowest unit of life is a cell. A tissue is made up of a variety of unique cells. Organ systems are made up of related organs that are made up of tissues. A living thing or organ is made up of various organ systems.
Therefore, any organism's cell is its fundamental structural and operative unit. Multicellular organisms are made up of cells, tissues, organs, and organ systems, which are composed of groups of similar cells, tissues, organs, and organ systems.
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7. Name TWO reasons why photosynthesis is an important process.
.
*
Answer:
1. It creates oxygen for humans and animals to breath.
2. It creates food for humans and animals.
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which type of mountain forms because of an oceanic plate and a continental plate colliding?
a. Aleutian
b. Continental-continental
c. Fault-block
d. Andean
Answer:
D.) Andean
Explanation:
Andean is the kind of mountain formed due to an oceanic plate and continental plate colliding.
Answer:
your answer to this question is Andean letter D
Explanation:
9. Which of the following is the simplest unit of proteins?
O lipids
O amino acids
carbohydrates
starch
Answer:
amino acids
Explanation:
basic structural unit of proterin is amino acid and amino acids combined in to long chains
what is a basic unit of classification in living organisms
Answer: basic unit = cell
Explanation:
Answer:
a cell
Explanation:
Cells- the smallest structural and functional unit of an organism
what are Red data list used for
Answer:
°Draws attention to the magnitude and importance of threatened biodiversity.
°Identifies and documents those species most in need of conservation action.
°Provides an index of the decline of biodiversity.
Establishes a baseline from which to monitor the future °status of species.
You've just returned to school from spring break and all of the plants around your classroom are wilted and looking bad. What do you think happened ? Use your knowledge of plant cells to explain . Can they recover ?
Answer:
Nobody was there to water them so they all died. No I do not think they could be revived or recover.
Explanation:
none needed
Which is the most abundant chemical found in living cells?
Answer:
Water
Explanation:
ANSWER AND I WILL GIVE BRAINLIEST AND POINTS!
Answer:
A DNA marker
Explanation:
also known as a size standard or a DNA ladder) is loaded into the first well of the gel. The fragments in the marker are of a known length so can be used to help approximate the size of the fragments in the samples.
How do you know the molecule below is an unsaturated fat?
A. The molecule has an OH group on the end.
B. The molecule contains carbon double bonds.
C. The molecule has no nitrogen atoms.
D. The molecule contains a carbon-oxygen double bond.
Answer:
The molecule contains carbon double bonds.
Explanation:
took the test
How do sedimentary rocks form on Earth's surface?
A
in vertical stripes
B
with no clear pattern
с
in horizontal layers
D
in a crisscross pattern
Answer:
B in vertical stripes
Explanation:
ejjekememmeme
Answer:
They are formed in horizontal layers
This term means that the tissue has a large blood supply flowing through it
A . basal
B. hypoxic
C. connective
D. vascular
Answer:
c. connective tissue
Explanation:
The largest blood vessels are arteries and veins, which have a thick, tough wall of connective tissue and and many layers of smooth muscle cells
Another random Question to get whoever 50 Pts!!!!
whats your favorite animal and why
mine is lions because they are very fierce yet majestic in a way
alright your turn
Answer:
mine is a sheep
Explanation:
they’re cuddly and innocent, but my favorite part about them is that they stick together
What do coal, petroleum, and wood have in common?
Select one or more:
A. All are categorized as renewable resources
B. All are considered nonrenewable resources
C. All can be considered inexhaustible resources
D. All can be categorized as energy resources
Answer: B. All are considered nonrenewable resources
D. All can be categorized as energy resources.
Explanation:
Non renewable resources are the resources that are in fixed quantity and can be used up. These include wood, petroleum, coal, steel, aluminum etc.
An energy resource simply refers to the resources that can be used to produce heat or electricity such as wood, petroleum, coal etc.
Coal, petroleum and wood are not renewable resources and they're not inexhaustible. They are exhaustible and non renewable resource.
Therefore, the correct options are B and D.
PLZ HELP
What keeps the two DNA strands separate during replication?
single strand binding proteins
double strand binding proteins
single strand binding phosphates
double strand binding saprophytes
Answer:
I am an A student of life science and the answer is double strand binding protein
Poniżej podano funkcje elementów budujących układ oddechowy. Zaznacz odpowiedź dotyczącą płuc. Jest narządem odpowiedzialnym za wymianę gazową organizmu. Jest wspólnym odcinkiem układu oddechowego i układu pokarmowego. Dostarcza powietrze bezpośrednio do pęcherzyków płucnych. Ma kształt elastycznej rury, przez którą powietrze przepływa do oskrzeli.
Answer:
umm how is this a question?
Can a male be a carrier for colorblindness?
Explanation:
yes
X chromosome from his mother
Please help me fr !!
A tapeworm lives inside a person, eating all the nutrients before they can be absorbed by the person's body. Which type of relationship does a tapeworm have with a person?
Answer: Host??
Explanation:
Answer:
The person and the tapeworm have a parasitical relationship.
Explanation:
The parasite (the tapeworm) is benefiting from its host while the host is being harmed by not getting the nutrients it needs.
I hope this helps! :)
what is the difference between natural selection and artifical selection
what caused a decrease of carbon dioxide in the biodomes air
Answer:
As organisms release energy during cellular respiration, carbon dioxide is produced from the carbon in energy storage molecules. ... Carbon dioxide in the biodome decreased because decomposers decreased which means there was a decrease in cellular respiration overall.
There are several possible reasons why the carbon dioxide levels in the air of a biodome might decrease like photosynthesis, respiration, ventilation and carbon sequestration.
What are the factors responsible for decrease of carbon dioxide in the biodomes air?There are several possible reasons why the carbon dioxide levels in the air of a biodome might decrease. Some possible causes include:
Photosynthesis: If the biodome contains plants, they may be using carbon dioxide during photosynthesis to produce oxygen and glucose. This process would remove carbon dioxide from the air.
Respiration: If the biodome contains animals or microorganisms that respire, they may be consuming oxygen and producing carbon dioxide. This would result in a decrease in carbon dioxide levels in the air.
Ventilation: If the biodome has a ventilation system, it may be designed to remove excess carbon dioxide from the air. This could result in a decrease in carbon dioxide levels.
Carbon sequestration: If the biodome has systems in place to capture and store carbon dioxide, such as through the use of plants or other methods, this could result in a decrease in carbon dioxide levels in the air.
It's important to note that the specific cause of a decrease in carbon dioxide levels in the biodome's air will depend on the specific conditions and systems in place within the biodome.
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