Answer:
True
Explanation:
A process of reduction division in which the number of chromosomes per cell is cut in half through the separation of homologous chromosomes in a diploid cell. ... Sex cells (sperm & egg.) Process of Meiosis. Starts with 1 diploid cell & ends with 4 haploid cells
Which one of the following is not made of calcite?
a. chert
b. travertine
c. chalk
d. coquina
List One differences between dwarf planets and the others planets of our solar system.
Astronomy.
Answer:
The main difference between a dwarf planet and a planet is size. Because they are smaller, dwarf planets lack the gravitational forces needed to pull in and accumulate all of the material found in their orbits. Each known dwarf planet in our solar system is actually smaller than Earth's Moon!
Explanation:
I need help now!!
Which of the following best describes why a cell would not be able to reproduce if its
nucleus were damaged?
A. The nucleus is responsible for creating the sugars needed to perform cell division.
B. The nucleus is responsible for creating the energy used to perform cell division.
C. The nucleus is responsible for housing the genetic information needed for cell
division.
D. The nucleus is responsible for letting the materials in that are needed for cell division.
Answer:
B
Explanation:
I don't know...but I think the answer is B
Which organelle is responsible for translating mRNA into a protein?
1. mitochondria
2. nucleus
3. ribosome
4. golgi apparatus
Answer:
3
Explanation:
ribosome
message is sent from nucleus to the ribosome
The central dogma of molecular biology states that
1. DNA-protein-RNA
2. tRNA-mRNA-rRNA
3.DNA-RNA-protein
4. protein-RNA-trait
Answer:
3
Explanation:
From DNA we are able to get RNA (m and t) to make proteins
ASSIGNMENT
1. What is the difference between food and diet? 5 marks
2. Differentiate between malnutrition and hunger. 6 marks
3. Is it possible to be over-nourished and under-nourished at the same time? Briefly explain. 5 marks
4. List and briefly explain the categorical elements of food security. 8 marks
5. Dan consumed a plate of food that contained 345g of carbohydrate, 80 g of protein and 45g of fat. He also drank a glass of drink that contained 12g of alcohol. Calculate the total caloric content of the food and drink. 6 marks (show calculations). PLEASE HELP ME OUT ITS URGENT!!
Answer:
Food refers to any nutritious substance whereas diet refers to the food eaten by organisms daily.
Explanation:
1. Food refers to any nutritious substance that an organisms eat in order to survive and maintain growth whereas diet refers to the sum of food that is consumed by an organism.
2. Malnutrition refers to a condition that occurs from eating a diet which does not supply a healthy amount of nutrients to our body whereas hunger refers to a feeling of discomfort that is caused by lack of food.
3. No, it is not possible to be over-nourished and under-nourished at the same time because a person can attain one condition at a time whether he can be over-nourished or under-nourished.
4. The three elements of food security are availability, access and consumption of food. Availability of food means having sufficient quantities of nutritive food available to a person, access means having sufficient resources to have access to the food and consumption means having taking sufficient amount of nutrients and the ability to absorb and use nutrients in the body.
5. 2,110 calories are taken by consuming 345g of carbohydrate, 80 g of protein, 45g of fat and 12g of alcohol.
How do scientists learn about the age of the solar system and its planetary bodies? Select the two correct answers.
a. comparing the composition of the gaseous planets to the rocky planets
b. using radiometric dating of meteorites
c. measuring distances between planets
d. analyzing impact craters on planetary body surfaces
Answer: B, C
Explanation: Scientists use radiometric dating of meteorites and analyze the impact craters on planetary body surfaces to learn about the age of the solar system and its planetary bodies.
Using radiometric dating of meteorites and analyzing impact craters on planetary body surfaces are the two methods that tells us about the age of solar system.
The age of solar system and its planetary bodies can be find out by using radioactive dating techniques. Scientists have find out that the Solar System is 4.6 billion years old due to this technique. The other way to find out the age of solar system and its planetary bodies by counting the number of impact craters occurs on planetary body surfaces so these two methods provides information about the age of solar system and its planetary bodies
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On the ocean floor, there are long mountain ranges called mid-oceanic ridges. Which description explains how these geological structures were
formed?
A a transform boundary where one ocean plate slides past another ocean plate
B. a diverging boundary where two ocean plates move apart from one another
oc, a converging boundary where an ocean plate sinks beneath a continental plate
D. a converging boundary where an ocean plate sinks beneath another ocean plate
Answer:
B a diverging boundary where two ocean plates move apart from one another
Explanation:
hope it helps
Which trait is not inherited?
A. The long length of a person's fingers
B. The large size of a person's ears
C. The freckles on a person's cheeks
D. The ability to speak Spanish
Answer: D. The ability to speak Spanish.
Explanation:
No one is born already speaking. Speaking a language is a learned behavior.
Answer: d ability to speak Spanish
Explanation: I help ;)
The broad waves of related waves is called: : Radiation Spectrum Force Energy please help
Answer:
The asnwer is spectrum
Explanation:
PLEASE HELP IM GIVING BRAINLIEST!!! THIS IS DUE SOON BTW!!
Instructions: Use the list of terms to fill in the blanks with the matching cell parts. Some terms are used more than once.
What r the types of allergy??????
Answer:
of Allergies
Drug Allergy.
Food Allergy.
Insect Allergy.
Latex Allergy.
Mold Allergy.
Pet Allergy.
Pollen Allergy.
Explanation:
Answer:
food, flowers, touch, dirt etc/
Explanation:
Low genetic variation or a lack of genetic diversity increases the risks of extinction. Scientists have observed this in cheetah populations. Captive feline cheetahs at a breeding colony for large cats were exposed to a viral pathogen that killed roughly 50% of the cheetah population. None of the lions in the large cat population developed symptoms or were affected. Scientists know that lions have a more extensive genetic variation, which means they had the gene variations in their immune system necessary to fend off the disease. Describe the evidence that supports how the cheetah population is likely experiencing a lack of genetic diversity. Suggest one way humans can intervene to increase genetic diversity. Predict a potential adaptation that could result from this increase in diversity. (Please be longer than a few sentences)
Answer:
Because the pathogen killed off 50% of the population that means half of the population was susceptible to the disease, meaning that genetic variation is incredibly low because 50% of the species is the same. Humans can fix this by interbreeding cheetahs with different traits, or even breed them with a different species that is compatible for reproduction.
Explanation:
Half of the population was susceptible to the disease since the pathogen killed off 50% of the population, which means that genetic variation is extremely minimal because 50% of the species are the same.
What is genetic diversity?Genetic diversity refers to the total number of genetic traits that make up a species' genetic composition.
It varies greatly depending on the number of species present as well as across species, and it can be linked to a species' longevity.
A group that is genetically homogeneous and exposed to a new pathogen without the gene variant to stop the disease could go extinct.
By performing a skin graft surgery where a portion of skin from a donor cheetah is given to a recipient cheetah, which is easily accepted if it is an inbred population, evidence to support the loss of genetic diversity of the cheetah population can be gained.
By implementing captive breeding programs, encouraging females to breed with various males in order to produce offspring with various traits, protecting the natural habitat, fostering coexistence of the cheetah species with other species and humans.
Also reducing competition for the same food source, we as humans can take action to increase the genetic diversity in the cheetah population.
Thus, these are the evidence that supports how the cheetah population is likely experiencing a lack of genetic diversity.
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Construct x such that a/x=x/b
Answer:
the x-axis drawn through (b−1,0). The intersection is at (b−1,ab).
Q 13.34: Water needs in space flights are easily met through recycling waste water.
А
True
B
False
Answer:
true
Explanation:
because they reuse that water like they filter it
HELP ME HURRY PLEASE
Answer:
people think science tests should be more hands on opposed to sitting down in on spot for hours. I think it should be hands on so kids can remember and have a fun time doing so.
Explanation:
(go into more depth and add more words.)
In starches the glucose units are joined together by
Answer: glycosidic bonds
The glucose units in starches are joined together by α-1,4 glycosidic bonds.
Starch is made up of two types of polysaccharides: amylose and amylopectin. Amylose is a straight linear chain of glucose molecules linked by α-l,4 glycosidic linkages. Starches have a lengthy, chain-like structure because of the linear arrangement of their -1,4 glycosidic linkages.
Amylopectin is a branched chain of α-d-glucose molecules linked by α-1,6 glycosidic linkage. These bonds are located at the places where the starch molecule branches, and they contribute to the branching structure of starches. Starches are more water soluble than other forms of carbohydrates, such as cellulose, due to their branching structure.
Therefore, In starches, α-1,4 glycosidic linkage bind the glucose units together.
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Explain how the digestive, respirtory, circulatory, and excretory systems work together in order to maintain homeostasis?
Which statement best describes cellular respiration?
Cellular respiration is a process that produces ATP from NADP
Cellular respiration is a process by which all organisms convert sugar into kinetic
energy
Cellular respiration is identical to photosynthesis
The products and reactants of cellular respiration are the same
Muscles are made of muscle tissue. Muscle tissue is made up of
Muscle cells
Muscle bones
Muscle veins
the primary wave is the slowest wave among the seismic waves true or false
A geneticist crossed tall pea plants and obtained 971 tall pea plants and 315 short pea plants in the F, generation.
TT
What were the genotypes of the parents that produced the offspring in the Punnett square shown, it T is the allele for tall, and t is the allele
for short?
ATT
BTT
D. TITI
Answer:
BTT Esa es la respuesta gracias
Answer:
B. TT
Explanation:
I took the test
Fill in the blank am i right on the second one by the way
Answer:
Explanation:
plant cells have chloroplasts, the organelle that contains a green pigment called chlorophyll, which produces food from sunlight
Actually, the first blank would be chloroplasts — they are an organelle found only in plants. The second blank would be chlorophyll, the green pigment found in chloroplasts.
can someone help with the pic
Answer:
A
Explanation:
Every cell has a cell membrane, but not every cell has a cell wall. Plant cells have both while animal cells only have cell membranes.
The brain is formed by a variety of nervous tissues and connective tissues. The tissues are highly organized and work together to complete a variety
of tasks
How is the brain classified?
А. tissue
B. organ <
C. organ system
D. organism
What are some similarities and differences between the two broad categories of cells
Answer:
Prokaryotes Vs. Eukaryotes
- Prokaryotes have a nucleoid, eukaryotes have a nucleus
- Prokaryotes do not have membrane bound organelles, eukaryotes do have membrane bound organelles
- Prokaryotes have a cell membrane, and so do eukaryotes
- Prokaryotes have ribosomes, and so do eukaryotes
Please help I'm in a test...
The process that transport rocks, soils, and sediments to a different location is called _____.
A Weathering
B Erosion
C Deposition
Answer: B
Explanation: I had a test with this question and got it right
How is a polar molecule different from a nonpolar molecule?
A.polar molecules have charges separated like poles of a magnet.
B. Polar molecules have charges evenly distributed across their poles.
C. Polar molecules are attracted to the lipids of the phospholipids of the plasma membrane.
D. Polar molecules are always larger than nonpolar molecules.
Answer: I think its b
Explanation:
if not a
A polar molecule is different from a nonpolar molecule in the fact that a polar molecule has charges separated like the poles of a magnet. Thus, the correct option for this question is A.
What is a Polar molecule?A polar molecule may be defined as a type of molecule in which one end of the molecule is slightly positive, while the other end is slightly negative. For example, water is an example of a polar molecule.
Being a polar molecule, water is separated by a positively charged hydrogen atom and a negatively charged oxygen atom. Polar molecules are asymmetric in nature and significantly contain lone pairs of electrons on a central atom or atoms with different electronegativities bonded together.
Non-polar molecules are symmetric with no unshared electrons. These molecules have resulted from an unequal distribution of electron density.
Therefore, polar molecules have charges separated like the poles of a magnet. Thus, the correct option for this question is A.
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Help!! it’s for a test!!
Identify the boundary separating watersheds?
A. Drainage basin
B.Valley
C. Plateau
D. Divide
What are the TWO processes during decomposition?
Answer:
Decomposition occurs through two primary chemical processes: autolysis and putrefaction. They often occur in tandem, but one may predominate in certain conditions. Autolysis (or “self-digestion”) is the destruction of cells through the action of their own enzymes.
Explanation:
Answer:
Autolysis and Putrefaction
Explanation: