Answer:
seedless plants do not bear seeds for propagation, whereas seed plants bear seeds for multiplication.
Explanation:
The difference between seed plants and seedless plants is that seedless plants do not bear seeds for propagation, whereas seed plants bear seeds for multiplication. The plant kingdom is traditionally divided into four main divisions, i.e Thallophyta, Bryophyta, Pteridophyta and Spermatophyta
The sporophyte is the dominant generation, but multicellular male and female gametophytes are produced within the flowers of the sporophyte.
In many plants, the sporophyte generation is the dominant generation. This means that the sporophyte is larger and lives longer than the gametophyte generation.
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In onions (Allium), cells of the sporophyte have 16 chromosomes within each nucleus. How many chromosomes should be in an embryo nucleus after fertilization
How many elements are included in the following list? NiSAs
Answer:
3
Explanation:
The elements included are Ni, S, and As
Pond appears to have steam coming off of it after a cold front passes. What is this?
Explanation:
Water is evaporated into another thin film again from pond sample surface. Over the lake, the thin, humid, moist layer is formed then blends with the colder air from of the land. Condensation happens as it cools, and a cloud emerges. It appears like steam emerging from the sea, thus the 'steam fog' nickname
Why is natural selection not considered a random event?
Answer:
Natural selection is not random because
Explanation:
Natural selection is not random because it is based on fitness in the context of environmental conditions. This, more often than not, implies logical choices based on given external parameters. For example, if the weather remained cold, selection would go to those who are fit in the cold not those who are fit in the hot weather.
It’s is the nature of living organisms to give birth to offspring before they die. What are the two methods used by living organisms?
Answer:
sexual and asexual reproduction im pretty sure
What role do the following codons (UGA, UAA, UAG) play in protein system
Answer:
Signal the end of protein-coding sequences
Explanation:
The codons UGA, UAA, and UAG are known as stop codons. When the RNA is being translated to protein, and the RNAm reads those codons, it knows it has to end the protein sequence
What is found inside of ice core samples that scientists use to determine the composition of the atmosphere at the time the ice was formed?
A. Dust particles
B. Ions
C. Gas bubbles
D. microbes
A. and C.
Explanation:
Ice cores contain evidence of trace elements, gas bubbles, dust, pollen, even viruses and bacteria that can be traced back in time to yield vivid images of Earth's history and prehistory for those who learn to read them.
Gas bubbles are typically found inside ice core samples that scientists use to determine the composition of the atmosphere at the time the ice was formed. Thus, the correct option is C.
What is Atmosphere?An Atmosphere may be defined as a type of layer that significantly consists of numerous gases. It surrounds any celestial body like earth. The atmosphere of the earth is generally composed of about 78% nitrogen, 21% oxygen, and one percent other gases.
During the time, when scientists formed the ice, gas bubbles of carbon dioxide, methane, and other greenhouse gases are significantly present inside the cores of the ice sample.
Apart from this, some sorts of bacteria, viruses, and other microorganisms are also visualized inside ice core samples.
In ancient times, the level of pollution is significantly low, so dust particles are not much highlighted in this region.
Therefore, gas bubbles are typically found inside ice core samples that scientists use to determine the composition of the atmosphere at the time the ice was formed. Thus, the correct option is C.
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Plants provide___to breath?
Answer:
oxygen
Explanation:
Plants use our carbon dioxide to create oxygen.
Answer:
Oxygen
Photosynthesis and respiration are the two essential processes that allow life to sustain on earth. In a way, they are a cycle — plants help humans breathe by providing us with oxygen, and humans help plants "breathe" by providing them with carbon dioxide.
2. Explain the purpose of alternation of generations
Answer:
The alternation of generations allows for both the dynamic and volatile act of sexual reproduction and the steady and consistent act of asexual reproduction. When the sporophyte creates spores, the cells undergo meiosis, which allows the gametophyte generation to recombine the genetics present.
Explanation:
What is vermicomposting?
Explanation:
1. It is a process in which earthworms are used to decompose and decay the green waste.
2. green waste are usually domestic waste, vegitable peels, paper, rubber anything which is easy to decompose.
3. In this process the green waste is been dump in the ground with addition to some earthworms.
4. As we know earthworms are farmers friends because they improve quality of the soil, moisture, water holding capacity, and more.
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Can some body pls give me a description of genetically modified foods?
Answer:
Foods generated from genetically modified (GM) species have had their genetic material (DNA) altered in a way that does not occur naturally, for as by introducing a gene from another creature.
Explanation:
What is the term that refers to knowledge of where a person's body parts are located in space?
Answer: Proprioception
Explanation:
Which is a major component of the respiratory
system?
o pharnyx
O heart
Oaorta
Answer:
The pharynx is the major component of the respiratory system
Why do you think stop and start codon signals are necessary tom protein synthesis?
Answer:
I think that the stop and start codon signals are necessary for tom protein synthesis because without start and stop codon signals, we couldn't begin / end the translation.
What is most likely to occur if different plant species compete for the same
requirements in an ecosystem?
a. One species will be eliminated from the ecosystem
b. the species will develop different requirements
c. the species will atler the eviroment so that both survive
d. one species will adapt to a different environment
How did the Great Flood of 1993 impact the socioeconomics of the Midwest.
Answer:
Millions of acres of farmland became unusable for years.
Explanation:
The Great flood of 1993 was the most devastating flood in the United States. More than 50,000 people became homeless and there was more than $20 of economic loss.
What was the Great Flood of 1993?North Dakota, South Dakota, Nebraska, Kansas, Minnesota, Iowa, Missouri, Wisconsin, and Illinois had significant and/or record floods from May through September 1993.
There were fifty flood fatalities, and the cost of repairs was close to $15 billion. Along the Missouri and Mississippi Rivers, hundreds of levees collapsed. So these flood-damaged houses and people lost their lives.
Therefore, the greatest flood to ever hit the United States was the Great Flood of 1993. More than 50,000 individuals lost their homes, and more than $20 in revenue was lost.
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Why is Claire (the dog) not gaining weight, even though she is eating?
Answer:
Claire is a healthy dog
Explanation:
she exercises enough to maintain a healthy and consistent weight.
Which of the following is also known as the ecosphere as it is a sum of all the ecosystems?
a.
Atmosphere
b.
Hydrosphere
c.
Biosphere
d.
Cryosphere
Answer:
c. Biosphere
Explanation:
The biosphere, also known as the ecosphere, is the worldwide sum of all ecosystems. It contains all living things above and below the surface of the Earth.
Which of the following is the best explanation for why carbon easily forms
many bonds?
A. Because it forms positive ions
B. Because it has four electrons available for bonding
C. Because it forms negative ions
ОО
D. Because it has six electrons available for bonding
SUBMIT
If a hurricane destroys a wetland ecosystem off the coast of south Georgia, what kind of succession follows? A.classic ecosystem
B.climax community
C.primary succession D.secondary succession
If a hurricane destroys a wetland ecosystem off the coast of south Georgia, the kind of succession which follows here is secondary succession. Thus, the correct option is D.
What is Secondary succession?Secondary succession is the succession which occurs when the severity of disturbance is insufficient to remove all of the existing vegetation and soil from a particular site. Many different kinds of disturbances, such as fire, flooding, windstorms, and the human activities such as, logging of forests can initiate secondary succession.
Secondary succession occur in regions where life existed at some period of time.
If a hurricane destroys a wetland ecosystem completely off the coast of South Georgia, then the secondary succession will take place in this ecosystem.
Therefore, the correct option is D.
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WHy is water important to life?
Answer:
At heart, all life on Earth uses a membrane that separates the organism from its environment. ... In this regard, water is essential simply because it's a liquid at Earth-like temperatures. Because it flows, water provides an efficient way to transfer substances from a cell to the cell's environment.
If less dense crust collides with less dense
crust, then this must be an example of
A. continental crust to continental crust collision..
B. continental crust to oceanic crust collision.
C, oceanic crust to oceanic crust collision.
D, a subduction zone.
The subduction zone is the area where a less dense plate collides with a denser plate, causing the subduction of this last one. The correct option is D. a subduction zone
What is a subduction zone?
The term subduction refers to the sinking process of one plate under another plate after a collision event.
Subduction zones are the areas in which plates approximate, collide, and one of them must subduct under the other one.
The plate that subduces is always the denser and older one. The less-dense plate superpose over the denser one and push it down toward the mantle. At this point, rocky material from the subductive plate melt again.
The correct option is D. a subduction zone.
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Answer:
A. Continental crust to continental crust collision
Explanation:
Did the lesson and got it right
Which best describes the result of Mendel’s work with pea plants
Answer:
He has found the basic ideas about genetics.
Explanation:
Tongue rolling is dominant. A father cannot roll his tongue but a mother can. Of their three children, one daughter and one son cannot roll her tongue. The other daughter can roll her tongues.
For the Tongue Rolling pedigree, what is the genotype of a tongue roller?
A.RR and rr
B.rr and Rr
C.Rr and RR
D.rr
Answer:
C. Rr and RR
Explanation:
I believe this is the answer because they said that it was a dominant geen.
Proteins, starches, fats, and oils are made from _____.
glucose
auxin
cytokinin
phloem
Answer:
glucose
Explanation:
How are cells organized in complex organisms? List the levels of organization in animals
such as humans.
Answer:
Humans—and other complex multicellular organisms—have systems of organs that work together, carrying out processes that keep us alive. The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems.
The second law of thermodynamics tells us that when energy changes forms, ___________.
A: It always moves to a lower and then a higher level
B: IT becomes more easily recycled
C: Some of it is lost, usually as heat
Answer:
C
Explanation:
Entropy occurs as heat is gradually lost in the second law of thermodynamics.
There's a block of metal with the dimensions below that weighs 2500 grams. What is the density of
the metal?
The correct answer is 37.72 g/[tex]cm^{3}[/tex]
Explanation:
To find the density of this block the first step is to find the total volume or space occupied by the block. This is because the volume is one of the factors that determines density (Density = mass ÷ volume). Now, to find the volume multiply the three sides given or the length, width, and heigh:
6 cm × 3 cm × 4 cm = 72 [tex]cm^{3}[/tex]
Finally, calculate the density:
2500 grams ÷ 72 cubic centimeters = 37.72 g/[tex]cm^{3}[/tex]
If a patient's total cholesterol is 195 mg/dL and the triglycerides are 215 mg/dL with an HDL of 55 mg/dL, what is the value for the LDL? (2 points) (apex)
Answer: If your LDL is 190 or more, it is considered very high. Your doctor will most likely recommend a statin in addition to making healthy lifestyle choices. Statins are medicines that can help lower cholesterol levels. You may also need to take a statin even though your LDL level is lower than 190.
Explanation:
____9. The diagram shows four living organisms.
Which statement about the organisms shown is accurate?
(A) They are all single celled and have similar organs.
(B) They are all single celled and have identical organs.
(C) They are all multicellular and have similar organs.
(D) They are all multicellular and have identical organs.