Answer:
c and d
Explanation:
A student observes that a popcorn kernel has a hard coat. He places the kernel in a moist paper towel and observes it for several days. He notices that the coat splits and a small root emerges. He concludes that—
water outside the seed coat exerted a pushing force, breaking the seed coat
air inside the seed coat exerted a pushing force, breaking the seed.
water outside the seed coat exerted a pulling force, breaking the seed coat.
gravity exerted a pulling force on the stem, breaking the seed coat.
Answer:
d
Explanation:
got it right on the test
When a person eats the yogurt, the 14 grams of protein will be A combined into monosaccharides. B combined into polysaccharides. C broken down into amino acids. D broken down into nucleic acids.
Answer:
C broken down into amino acids.
Explanation:
Proteins are one of the four major biological molecules. They are organic polymers made up of monomers called AMINO ACIDS. Proteins are contained in food we ingest and are subsequently digested or broken down into their amino acid components.
In this case, when a person eats yogurt (containing proteins), the 14 grams of protein will be broken down into amino acids during digestion by enzymes called PROTEASES. Note that every polymer will be broken down into its monomeric constituents during digestion.
What characteristics apply to gymnosperms? (Choose all that apply)
use seeds to reproduce
use spores to reproduce
have vascular tissue
have cones as reproductive structures
Answer:
Have cones as reproductive structures.
Have vascular tissue.
Explanation:
The gymnosperms have vascular tissue and have cones as reproductive structures.
What are gymnosperms?The gymnosperms are woody like plants having a cone shaped structure, bear no flowers, no fruits but bear seeds; The seeds are with out coat and they are not covered by the fruit wall.
Gymnosperms produce seeds which are not enclosed in an ovary, while in Angiosperms the reproductive organs are the flower, they may involve in double fertilization resulting in a diploid zygote, and a triploid endosperm.
Gymnosperms produce seeds and fruits from their flowers, the flowers in gymnosperms helped in the propagation of the plants, it attract pollinators and attracted seed to dispersers, gymnosperms became dominant among plants.
The modification of the gymnosperm includes Modified leaves, Sunken stomata, Pointed and thick cuticle leaves, Less transpiration rate.
Learn more about gymnosperm, here:
brainly.com/question/24328630
#SPJ2
What kingdom do the amoeba and paramecium belong?
Answer:
Protista
Explanation:
Both belong in the protista kingdom
Which statement about the structure of organic molecules is true
1. DNA contains fatty acid chain
2. Lipids are composed of Amino acids
3. Proteins are composed of nucleotides
4. Carbohydrates contain monosaccharide units
Answer: The answer is D
Explanation:
The statement which is true about the structure of organic molecules is as follows:
Carbohydrates contain monosaccharide units.Thus, the correct option for this question is D.
What do you mean by Organic molecules?Organic molecules may be defined as those molecules that are correspondingly made of carbon and hydrogen. It can also include other elements like oxygen, sulfur, nitrogen, etc. It must contain carbon atoms covalently bonded to hydrogen atoms (C-H bonds).
DNA possesses monomeric units known as nucleotides. Lipids are the derivatives of fatty acids. While proteins are composed of building blocks that are known as amino acids.
On the other hand, carbohydrates are derived from monosaccharide units that are togetherly held by glycosidic linkage.
Therefore, carbohydrates contain monosaccharide units is a statement that is true about the structure of organic molecules. Thus, the correct option for this question is D.
To learn more about Carbohydrates, refer to the link:
https://brainly.com/question/20290845
#SPJ6
HELLP ASAP
1. What are air pressure, wind, cloud cover, precipitation, and temperature called?
A. elements of climate
B. elements of weather
C. elementary aspects
D. elevation pressure
Answer:
your answer is B, it is part of the weather cycle and water cycle, give me a Brainliest if correct and have a good day:)
Explanation:
Give an example of how Eubacteria can be beneficial. Explain. Please help me.
Answer:
Some bacteria are good for you, including the bacteria in your digestive system, or gut. These bacteria help to break down food and keep you healthy. Other good bacteria can produce oxygen are used to create antibiotics. Bacteria are used in food production to make yogurt and fermented foods.
An example of how Eubacteria can be beneficial is that these bacteria fix nitrogen for soil that can be used by living beings.
What are eubacteria?The bacteria in your gut and digestive tract are among the beneficial bacteria. These microorganisms aid in the digestion of food and promote good health. To make antibiotics, other beneficial microorganisms that can also produce oxygen are employed. Yogurt and other fermented foods are produced using bacteria in the food industry.
Oxygen, carbon, nitrogen, and phosphorus that living things like animals and plants cannot use can be converted by eubacteria into usable forms. In the soil, they fix the nitrogen that is present in the air.
Therefore, Eubacteria can help the environment by fixing nitrogen into the soil so that living things can use it.
To learn more about eubacteria, refer to the link:
https://brainly.com/question/5186929
#SPJ5
Helllpppp!!!!
How would the disappearance of shrimp, copepods, and amphipods affect the other organisms in the ocean food web
Would you design cars with different masses or equal masses? Would you design your cars with high speeds or low speeds? Use Newton's Laws of motion to support your response.
Answer:
You can actually apply the same concept, obviusly you want the cars to be the same weight, and you want your cars to be not too fast, because of the same equation F=MA if the car is faster, is because it has higher acceleration, wich results in higher impact force.
Explanation:
Two identical twins live in the same city; one smokes and one doesn’t. The one who smokes develops lung cancer. What is the best reason for this?
A.
mostly genetics factors
B.
genetics and environmental factors
C.
mostly environmental factors
D.
it was not related to their genetics or environment
Help me with these two questions please !!!!!!!!!!!!!!
Answer:
Question 13: C
Question 14: D
Have a great day, hope this helps :)
Difference between direct and indirect effect
Direct effects, as the name suggests, while not manipulated or communicated by a third party, deal with the direct influence of one entity on another. Indirect effects can be described as the influence, mediated or passed on by a third, of one organism or species on another.
Which of the following is not the wave of the future in the medical field?
O robots
O cameras
O computers
O engines
Please help!!!!!!
How are some protists like plants
Answer:
Plant-like protists are autotrophs. This means that they produce their own food. They perform photosynthesis to produce sugar by using carbon dioxide and water, and the energy from sunlight, just like plants. ... Protists can be unicellular (single-celled) or multicellular (many-celled).
Explanation:
I took the same test on this
In a water molecule the electrons are not equally shared , creating a ____ molecule .
Please help me
Answer:
Polar
Explanation:
In a water molecule, the oxygen atom is bigger and has a greater pull on the electrons than the hydrogen atoms do. This makes the molecule polar.
Which of the following best describes a population?
Answer:
Explanation:
A number of things/people that populate on place
Which of the following is created from amino acids linking together?
A. Carbon chains
B. Lipids
C. Polypeptide chains
D. Monomers
pls pls pls help
will mark brainliest
what happens with the relative positions of the Sun and the Moon in the sky?
Answer:
the moon and the sun line up above earth and sometimes creates eclipses.
Explanation:
I took the test. Please mark brainliest
When a pinecone is open, it disperses its seeds. Based on your experiment, can you tell what weather conditions are needed for pine trees to release their seeds? Explain your answer.
Answer:
If a pine seed finds the right micro-climate, it will eventually sprout and a pine seedling will start to grow. However, pine seeds are usually released in a dormant state, which is most often broken by cold stratification. As a result, a pine seed will not sprout until the following spring when warm weather and some spring moisture are present.
Explanation:
hope it helps
Answer:
hi
Explanation:
What theory’s/ideas challenge natural selection? In other words, what disproves natural selection?
Answer:
Natural selection needs some starting material, and that starting material is heritable variation. For natural selection to act on a feature, there must already be variation (differences among individuals) for that feature. Also, the differences have to be heritable, determined by the organisms' genes.
Which of the following can occur because of the exchange of homologous chromosome parts during the process of meiosis?
Answer:
Muttation can occur during the exchange of genetic meterial from homologous chromosomes which may led to cause deseases in some cases.
Explanation:
Homologous chromosomes exchange genetic material during the process of meiosis.
What is Meiosis?Meiosis is a type of cell division in which germ cells present in the sexually-reproducing organisms produces the gametes, such as sperm or egg cells. It involves two rounds of division which results in four cells with only one copy of each chromosome.
These four cells are haploid in nature. Meiosis produces the sex cells or gametes like eggs in females and sperm in males.
Meiosis is divided into nine stages. These are divided between the first time the cell divides (meiosis I) and the second time it divides (meiosis II).
Thus, homologous chromosomes exchange genetic material during the process of meiosis.
Learn more about Meiosis, here:
https://brainly.com/question/29383386
#SPJ6
whats better
kirby
or
Zelda
franchise
Answer:
kirbyyyyyyyyyyyyy
Explanation:
:DDDDDD
Answer:
i think kirby bc he cyute <(^.^)^
Explanation:
zelda franchise for sum action and stuff
What is a boundary in which two plates move apart from each other called?
Answer:
A divergent boundary!
Explanation:
Hope this helps! <3
An enzyme acts as a catalyst to a chemical reaction by
Answer:
Speeding up chemical reactions by lowering the activation energy.
Explanation:
by lowering the activation energy
What's the interaction of tissues and organs within the circulatory system
Answer:
The cardiovascular or circulatory system is designed to ensure the survival of all cells.
Explanation:
A large photograph displayed on a store’s website would NOT qualify for fair use under which guideline?
Answer:
copyright
Explanation:
Which characteristics or structures from the list are found in plant cells? Select all that apply.
nucleus
chloroplast
irregular shape
cell wall
tiny storage vacuoles
cell membrane
Plz help :X
Answer:
nucleus,chloroplast,cell wall, cell membrane
Explanation:
The characteristic of life that represents birds migrating to the south is
Answer:
Living things respond to their enviorment.
Explanation:
Hope that helped!
Why might a company decide against using hydroelectric Energy as an alternative energy source
A. Gathering it requires pulling from unclean sources
B. Gathering it creates noise pollution for surrounding areas
C. Gathering it releases carbon dioxide gases into the air
D. Gathering it can have a negative affect on natural habitats
The company's decision against using hydroelectric Energy as an alternative energy source might be Gathering it can have a negative affect on natural habitats.
Why is hydroelectric power not a good energy source?Hydropower can also cause environmental and social problems. Waterholes drastically change the landscape and rivers they are built on. Dams and reservoirs can decrease river flows, raise the water temperature, degrade water quality and cause sediment to build up. This has negative impacts on fish, birds and other wildlife.
Thus, the correct option is "D".
To learn more about hydroelectric power click here:
https://brainly.com/question/11516994
does any one know whats wrong with my foot it has been in constant pain since yesterday now i dont know if it is a sprain or what plz help im in constant pain now i can hardly walk it is the long near the big toe right in the center of the long bone conecting to my ankle plz i need to know if i need to go to doctor.
Answer:
Yes. You need to go to the doctor.
Explanation:
Your foot could be doing this because the bone itself could be bruised or else it somehow got injured or is in some other type of pain.