In your own words, describe why an astronaut's weight is different on the moon than it is on Earth.
Science
Our weight on moon is less than it would be on Earth due to a difference of the strength of gravity on the moon. The moon's gravitation force is determined by the mass and the size of the moon.
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name the two models of our solar system. Identify
which model is currently accepted as the structure of our
solar system. please help!!!!
Answer:
Geocentric and Heliocentric Models.
These are modeled by the movements of the Sun, the Moon, and the five known planets (Mercury, Venus, Mars, Jupiter, and Saturn) in the skies to great accuracy, with a geocentric system of orbits and epicycles.
. Describea typical stress-strain curve and the relationship between the segments of the curve and stress and strain.
Answer:
the relationship between stress and strain that a particular material displays . it's unique for each material . it's is found by recording amount of strss at different values of strain. it is the stress point at which a specific material breaks under a given stress in a typical stress-strain curve , the breaking strength is less than the ultimate strength
Explanation:
The typical stress-strain curve and the relationship between the segments of the curve and stress and strain explain the relationship between these two as the Stress is the result of the force applied, and strain is the deformation of a material in response to stress.
What is the significance of the stress-strain curve?A typical stress-strain curve has several segments, including the elastic region, which represents the stiffness of the material, and the plastic region, which represents the point at which the material begins to permanently deform. Necking: a reduction in cross-section; ultimate strength, then a material's ability to deform until it reaches its ultimate strength, and so on.
Hence, the typical stress-strain curve and the relationship between the segments of the curve and stress and strain explain the relationship between these two as the Stress is the result of the force applied, and strain is the deformation of a material in response to stress.
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Can someone please help me out would appreciate it thanks
Answer:either c or b most likely c
Explanation:
How much energy is lost at each level and what is it
lost as?
Answer:
The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.
Explanation:
Which process must occur for a muscle to be able to relax?
A.
The concentration of calcium in the myofibril must decrease.
B.
Myosin and actin must attach to each other.
C.
A nerve must initiate an action potential in the muscle fiber.
D.
The amount of ATP in the neuromuscular junction must increase.
How has molecular evidence affected our understanding of modern evolutionary theory?
Answer:
It supports anatomical evidence and provides more information with details for specific relationships. It provides evidence that lineages stopped evolving about four million years ago.
Explanation:
How can someone become paralyzed after motor nerves work cut?
Over time, which cell will look the smallest?
Which statement about diploid and haploid cells is correct?
A. Haploid cells have half the chromosomes found in diploid cells
B. Haploid cells have two sets of chromosomes
C. Haploid cells have the same number of chromosomes as diploid cells
D. Haploid cells have twice the chromosomes found in diploid cells
Answer:
The answer would be D
Explanation:
Answer:
the correct answer is A just took the test
seeds that are planted upside down are still able to grow into mature plants which explanation best explains this phenomenon?
Answer:
This question is incomplete but the completed question is below
eeds that are planted upside down are still able to grow into mature plants. Which explanation best explains this phenomenon?
(a)The roots change into branches, and the branches turn into roots.
(b)The roots grow toward the force of gravity, and the shoots grow away.
(c)The plant will become a smaller version of a mature plant.
(d)Roots always grow toward the dark, and shoots grow toward the light.
Two options appear to be correct here: options B and D
Explanation:
Regardless of the direction the seed is planted, the seed has the ability to re-position itself via the help of growth hormones that respond to gravity and redirect the seed into the proper orientation. However, after re-orientation of the seed, the root grows toward the direction of gravity (a process known as gravitropism) while the shoot grows toward the direction of sunlight (a process known as phototropism). Even though two options appear to be correct here, the most correct option based on he question is b
What happens to carbohydrates in fruit as they ripen? Make sure you explain the different carbohydrate molecules in the two stages of bananas and how that makes them taste.
Answer:
What happens to carbohydrates in fruit as they ripen is explained below in details.
Explanation:
As the fruit ripens after produce, the sucrose content develops only somewhat, while glucose and fructose progress in parallel, to enhance the principal sugars in ripe fruit. Carbohydrates are very essential in horticultural products because of their supplement to texture, flavoring, coloring, and nutritional value.
You examine an epithelial cell (skin cell) and notice the chromosomes are visible however it appears there are two nuclei in the cell. What is the best explanation for this observation?
a) the cell has just gone through the S –phase of the cell cycle so there is double the amount of DNA
b) the cell has just gone through telophase but not cytokinesis
c) the cell has gone through meiosis I and is preparing for meiosis II
d) the cell is in G1 and is preparing for DNA synthesis
Answer:
The best explanation if we observe an epithelial cell with chromosomes are visible and two cell nuclei is that the cell has just gone through telophase but not cytokinesis (option b).
Explanation:
A somatic cell, when found in mitosis, exhibits the chromosomes distributed in both poles and the outline of two nuclei in the telophase phase, just before cytokinesis.
In mitotic telophase:
Chromatids, which are chromosomes, are found in the cell poles. It initiates the formation of the nucleus membrane. The chromosomes begin to turn into chromatin. Disappearance of the mitotic spindle, duplication of organelles and cytoplasmic invagination.The division and differentiation of the nuclei in telophase is called karyokinesis. Later, cytokinesis occurs, where the daughter cells are separated.
The other options are not correct because:
a and d. In the other phases described, S and G1, no chromosome distribution is observed at the poles.
c. A somatic cell does not experience meiosis.
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Answer:
Deoxyribonucleic acid (DNA) is a unique set of instructions that are in every cell. DNA provides the organisms' cells instructions needed to survive and reproduce.
Explanation:
what is a ecosystem
Explanation:
it's pretty much a community of any living organism that live and interact with eachother depending on a specific environment
Which of the following is NOT one of the classifications of tissue?
a) Epithelial tissue
b) Connective tissue
c) Simple connective tissue
d) Muscular tissue
Answer:
hich of the following tissues is not considered a connective tissue?
Explanation: Skin is composed of epithelial cells, and is therefore not an example of connective tissue. The major types of connective tissue include bone, adipose, blood, and cartilage. Connective tissue is responsible for binding and support of other tissue.
Explanation:
CAN ANYONE HELP ME PLEASE WITH THE QUESTION ABOVE
Answer: B. Most owls have evolved to hunt at night, and most hawks hunt during the day so that competition is reduced.
Explanation: Hawks hunt in the day, owls hunt in the night. Despite both predators having similar diets, because they hunt at different times the competition is reduced, this is the outcome of them changing their niches to have opposite hunting times.
I will mark u brainlyest help me please got test due with this two
PLEASE I NEED HELP ASAP!! Pls help!
Answer:
i cant see it
Explanation:
define kinetic energy and thermal energy. Describe what happens to each as the temperature of a substances increases.
Explanation:
All matter is made up of particles that are constantly moving. The motion of the particles results in kinetic energy. The part of total internal energy that can be transferred is thermal energy. As temperature increases, the particles in a substance move faster and have greater kinetic and thermal energy.
Answer:
All matter is made up of particles that are constantly moving. The motion of the particles results in kinetic energy. The part of total internal energy that can be transferred is thermal energy. As temperature increases, the particles in a substance move faster and have greater kinetic and thermal energy.
Explanation:
What were the first vertebrates to evolve?
The earliest vertebrates that use to resembled are hagfish and lived more than 500 million years ago. As other classes of fish appeared, they evolved traits such as a complete vertebral column, jaws, and a bony endoskeleton.
What are Amphibians?Amphibians were the first tetrapod vertebrates as well as the first vertebrates to live on land. Segmentation is a part of characteristic of the body plans of various goup of animals including the annelids, and recently developed vertebrates. There are three different segmental systems origin in development of the vertebrates that are - the somites, the rhombomeres and the pharyngeal arches.
There are several benefits of the segmentation development and these are the different type of anatomical and morphological developments are helps in facilitate specific functions are led by the segmented body.
The Paraxial mesoderm also have segmentation that helps in lateral movement and It has been also helps in the consistent and fast interaction or communication in the neuronal system.
Therefore, The earliest vertebrates that use to resembled are hagfish and lived more than 500 million years ago. As other classes of fish appeared, they evolved traits such as a complete vertebral column, jaws, and a bony endoskeleton.
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MARKING BRAINLIEST HELPPPP
Answer:
1.CO2 comes from the composition of air. water from the soil and light from sun.
2.energy is absorbed in form of light - endothermic
3. glucose + oxygen
4. the chemical equation is balanced on both sides
Which is an example ofa polygenic trait? eye color, which is controlled by many interacting genes a cow’s spot pattern, which is controlled by two dominant genes a plant’s pink flowers, which is controlled by two incomplete genes a plant’s green seeds, which is controlled by one dominant gene
Answer:
eye color
Explanation:
Answer:
eye color, which is controlled by many interacting genes
Explanation:
Diurnal animals are active
Answer:
During the day time
Explanation:
Diurnal animals are active during the day time and are inactive at night.
A wide range of animals fall into this category. Examples are human beings, chipmunks, goats, sheep etc.
As the sunrises, diurnal animals begins to get up and as the sun set, their activities reduces and they become inactive.
How do enviornmental factors affect the abundance of traits within a population?
Answer:
Explanation:
many things can affect traits within a population some examples of this is
abuse, negative emotions, drugs, synthetic substances, temperature, and light are among the outer ecological variables that can figure out which qualities are turned here and there, in this way impacting the manner in which a life form creates and works.
and no I did not copy this from online
If more airplanes and cars are used (both of which burn fuels) carbon levels will decrease ?
Answer: If the question is "would the carbon levels decrease?" then they would not, they would increase.
Explanation: More airplanes and cars would burn fossil fuels, and release more carbon dioxide, increasing carbon levels, not decreasing them.
20 POINTS What role do animals have in the carbon cycle?
Group of answer choices
use water and release oxygen
use sugar and release carbon
use carbon and release oxygen
use carbon and release nitrogen
Answer:
d or c
Explanation:
Which method of heat transfer is due to the transfer of kinetic energy from one molecule to another?
a Conduction
b Convection
c Evaporation
d Radiation
Answer: A) Conduction
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What BEST describes the roles of photosystem I and photosystem Il in the process of photosynthesis?
Answer:
Photo system 1 = Light
This is the presence of sunlight, whereby Chlorophyll is used to trap sunlight energy to split water molecules into hydrogen ions and hydroxyl ions also NADP is reduced by the addition of hydrogen to form NADH
Photo system II: Dark stage
It happens when there is abscence of light where by CO2 ingested by plants react with hydrogen atoms from the light stage to form the Emperial Formula of simple sugar. Also Hydroxyl ions (OH -) is furtherly broken-down to oxygen & molecules.
Photosynthesis is the process in which green plant manufacturer their food in the presence of Sunlight ND chlorophyll. Where CO2 (Carbon [iv] oxide) and water (H2O)
Explanation:
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(87 points) {brainliest} please help me!!!!!!!!!
Which acronym refers to a set of best practices for developing documentation as described by the FDA?
A. CSR
B. ALCOA
C. CRF
D. HSP