Answer:
C. gametes
Explanation:
The alternation of generations is a process of reproductive cycles that occur in plants, algae and cnidarians. The main characteristic of this type of reproduction is that it happens in two different generations alternating in a single life cycle of the organisms.
For this process to occur in plants, it is necessary that there is a generation that produces spores (sporophytic generation) and a generation that produces gametes (gametophytic generation). The generation that produces spores should produce diploid cells, while the generation that produces gametes must produce haploid cells.
When haploid cells arise from the germination of spores (which are haploid), the phase called gametophytic begins in the body, where the formation of two gametes (one male and one female) occurs. These gametes will merge during fertilization, generating a diploid embryo, which will undergo several mitoses until it becomes an adult that is capable of forming spores.
How do mitochondria work
Explain at which point in the diagram the earth is at winter solstice, summer solstice, spring equinox, and fall equinox. Give the date for each.
The winter solstice is represented by picture D. This is because at this time the surface of the earth faces opposite to the sun. The date of the winter solstice is 22 December.
The summer solstice is represented by picture B. During this time, the earth faces toward the sun. At this time, the sun will shine directly on the Tropic of Cancer. The date of the summer solstice is 22 June.
Due to the continuous rotation of the earth on its axis, these solutions may arise. The spring equinox will be represented by picture A and it will fall on March 21 every year. On contrary, the fall equinox will be depicted in picture C. The date of the fall equinox is found to be September 23.
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Which of the following supports the theory of continental drift?
The depth of the oceans
The climate of the South American continent
The size of glaciers in Alaska
The fossil record
the correct answer is The fossil record
How many cotyledons does a dicot have?
i believe the answer is two
I really need these!!
10 examples of each:
Conduction
Convection
Radiation
Find out whether combustion reactions are exothermic or endothermic and explain why
Find a substance that has a specific heath that is higher thank liquid water and explain what it means
Please help!
This answer provides 10 examples each of conduction, convection, and radiation. It also explains whether combustion reactions are exothermic or endothermic, and provides an example of a substance with a higher specific heat than liquid water.
Explanation:Conduction:1. Touching a hot stove and feeling heat transfer to your hand
2. A metal spoon becoming hot when placed in a cup of hot soup
3. A pan heating up when placed on a stove burner
Convection:
1. Boiling water in a pot on a stove
2. Wind blowing and causing heat transfer in the atmosphere
3. A radiator heating a room by transferring heat to the air
Radiation:1. Feeling the warmth of the sun on your skin
2. A campfire warming your body by emitting heat
3. A microwave oven cooking food by emitting electromagnetic waves
Combustion reactions:Combustion reactions are exothermic, meaning they release heat. This is because combustion reactions involve the rapid combination of oxygen with a fuel, such as burning wood or gasoline. The release of energy in the form of heat is what makes combustion reactions exothermic.
Specific heat:A substance with a specific heat higher than liquid water is ethylene glycol (antifreeze). Specific heat is the amount of heat needed to raise the temperature of a substance by a certain amount. Ethylene glycol has a higher specific heat than water, which means it can absorb more heat energy before its temperature increases significantly.
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Which of the following is NOT an example of physical weathering?
Wind blowing and eroding sandstone
Acid rain dissolving limestone
Ocean waves crashing against basalt
A river carving out a canyon through bedrock
A tubal ligation is a permanent sterilization procedure in which a woman's fallopian tubes are blocked or severed. Which of the following explains how this process can be used to prevent pregnancies? It prevents sperm from reaching the egg and fertilizing it. It prevents the maturation of the follicle and the release of an egg. It prevents a zygote from being implanted into the uterine wall. It prevents the thickening of the walls of the uterus.
The permanent sterilization prevents sperm from reaching the egg and fertilizing it.
What is sterilization?Sterilization is the process of permanent birth control.
The women sterilization process s called tubal ligation.
Tubal ligation closes all the Fallopian tubes, so that sperm could not reach the uterus of the women.
The men sterilization is called vasectomy.
Thus, the correct option is A.
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which of the following must be true to considered something alive?
Fossil A was found at a depth of 400 feet and fossil B was found at a depth of 315 feet. Which one is older?
Fossil B
Fossil A
They are the same age
Not enough information to determine
what are the four evolutionary events important for plants?
Make up a list of questions to ask five people to find out if they are more right- or left-brain oriented. You should include questions about what they like to do, their skills, and weaknesses. For example, someone very good at math and learning foreign languages is probably more controlled by the left side of their brain. When you finish interviewing all five people, write a report on what you have discovered. Include the following in your report:
Skills most likely controlled by the left side of the brain.
Skills most likely controlled by the right side of the brain.
List of the people you interviewed and why you think they are more strongly controlled by one side of the brain as opposed to the other side.
Which of the following cavities would a surgeon performing an operation on the intestines have to open?
A) Abdominopelvic and abdominal
B) Thoracic and abdominal
C) Abdominopelvic and thoracic
D) Thoracic and pericardial
Final answer:
A surgeon operating on the intestines would have to open the A) Abdominopelvic and abdominal cavities. The pleural cavity, which is associated with the lungs, is part of the thoracic cavity.
Explanation:
The question asks about the body cavity a surgeon would open to operate on the intestines. The correct answer is A) Abdominopelvic and abdominal. The abdominopelvic cavity is the largest in the body and includes both the abdominal cavity (housing the digestive organs, such as the intestines) and the pelvic cavity (housing the reproductive organs).
As for the pleural cavity, it is part of the thoracic cavity which also contains the pericardial cavity surrounding the heart. These cavities are all located within the larger anterior (ventral) cavity. Thus, a surgeon must open the abdominopelvic cavity to perform operations on the intestines.
the neurotic zone is the part of the ocean located above the continental shelf
Answer: True
Explanation- Neurotic zone refers to the top layer of the ocean, from the surface of the ocean to a depth of 200 m below the ocean. It is a region where sunlight is maximum, and is a nutrient rich zone. Due to this,numerous, diverse marine life forms exist as well as the marine plants such s corals, phytoplankton and kelps can prepare their food undergoing photosynthesis process.
This neurotic zone when compared to the continental shelf in terms of height, it lies above the shelf, and the water in this neurotic zone is considered as the neurotic water.
Thus, the above statement is true.
A common protozoan that moves by cilia is the _____.
amoeba
paramecium
euglena
Answer:
paramecium is the correct answer.
Explanation:
A common protozoan that moves by cilia is the paramecium.
paramecia are the single-celled organism, they live in the aquatic habitats.
The whole body of the protozoan is covered by cilia.
Cilia is hair-like organelles that help the paramecium to swim in the water as they have streamlined structure.
The function of cilia in the life cycle of a protozoan is it help in locomotion and in food ingestion.
According to the phylogenetic tree, from which domain did Eukarya evolve? The first branch of the phylogenetic tree holds the species of the bacteria division. It contains thermotoga bacteria, green non-sulfur bacteria, cyanobacteria, gram-positive bacteria, and purple bacteria. The second branch of the phylogenetic tree holds species of the Eukarya. It contains diplomonads, microsporidia, trichomonads, flagellates, entamoeba, slime molds, ciliates, plants, animals, and fungi. The last branch of the phylogenetic tree starts at the beginning of Eukarya line and holds the species Archa
Answer:
The correct answer is Archaea and Eukarya.
Explanation:
On the basis of the information provided in the question, the ultimate branch of the phylogenetic tree starts with the line of Eukarya and then possesses the species of the Archaea division that comprises those prokaryotic species, which thrives in extremely tough environmental scenarios.
As the last branch possesses species of two domains, that is, Eukarya and Archaea and it starts with Eukarya and afterward holds the species of Archaea, which shows that both Eukarya and Archaea are associated genetically.
According to the phylogenetic tree presented, Eukarya evolved from the second branch of the tree, which contains species of the Eukarya domain and contains diplomonads, microsporidia, etc.
What is the significance of the eukarya?This includes the eukaryotes, where it is one of the three main domains of life and it is significant because it contains all the organisms that have a true nucleus as well as the organelles, and they are plants, animals, fungi, etc. They range from simple single-celled organisms such as amoebas to complex multicellular organisms such as humans, and they are crucial for understanding evolution.
Hence, according to the phylogenetic tree presented, Eukarya evolved from the second branch of the tree, which contains species of the Eukarya domain and contains diplomonads, microsporidia, etc.
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As a food handler you are asked to prepare a salad but have a small cut on your hand. You should
As a food handler, you are asked to prepare a salad but have a small cut on your hand. You should wear a bandage or gloves to cover the wound.
Completely cover all cuts/wounds with a wound strip/bandage (we recommend bright-colored waterproof bandages) wear disposable gloves over top of the wound strip if wounds are on your hands change disposable gloves on a regular basis tell your supervisor if you are sick don’t handle food.
Sores and cuts can harbor harmful bacteria. By covering them, you’re preventing bacteria from entering your food. Colored, waterproof dressings are easier to spot if they fall into your food.
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Which of the following is an example of a correctly written scientific name for a leopard frog?
How many more phases occur during meiosis than during mitosis
Answer:
The correct answer would be 4 phases.
Mitosis is a equational division which results in the formation of two daughter cells with equal number of chromosomes as there were in parent cell. It contains four phases prophase, metaphase, anaphase, and telophase. It helps in growth and repair of the cells.
In contrast, meiosis is reductional division which leads to production of four haploid daughter cells from a single diploid parent cell. It usually takes place during the formation of gametes. It takes place in two divisions namely meiosis I and meiosis II.
Meiosis I contains four phases:
prophase Imetaphase Ianaphase Itelophase IMeiosis II also contains four phases:
prophase IImetaphase IIanaphase IItelophase IIWhen you write a sentence where the subject is doing something, this is considered ________.
imperative verb
passive voice
active voice
imagery
Answer:
it would be the active voice
Explanation:
What's the difference between distance and displacement
Which of the following is NOT a form of asexual reproduction?
Spore formation
Budding
Fertilization
Fission
Issac newton believed that light was made of
Which example is most similar to the evidence that Darwin used to support his idea of natural selection?
Answer: D or Mice that are able to blend into their environment and escape predators are likely to survive and reproduce.
Explanation: Edge 2021 cumulative exam
Can someone please help? I need help now.
Give two examples each for conduction, convection, and radiation that are not already mentioned in the content or activities in this lesson. Already used: Light bulb, Metal spoon in tea, Rubbing hands together, Microwave oven, Heat in a classroom, Campfire, Heating soup, Hot air balloon, Pancake griddle and greenhouse.
Find out whether combustion reactions are exothermic or endothermic, and explain why.
Find a substance that has a specific heat that is higher than liquid water and explain what it means.
sublimation
and canada
What would be the main problem with reproduction if meiosis did not take place to form sex cells?
The zygote would have two nuclei.
Fertilization would result in a zygote with half as many chromosomes as the parents.
Fertilization would result in a zygote with twice as many chromosomes as the parents.
The zygote would have no nucleus.
If meiosis fails to take place to produce sex cells then fertilization would result in the formation of a zygote with twice as many chromosomes as the parents.
• The formation of the sperm and the egg cells is known as meiosis. The body cells are diploid in the sexually reproducing organisms, that is, they constitute two chromosome sets, one from each parent.
• At the time of meiosis, the diploid cells go through the process of DNA replication, which is succeeded by two rounds of cell differentiation, giving rise to haploid sex cells.
• In cases, when meiosis fails to take place in sexually reproducing organisms, the number of chromosomes would get double in each generation as it is the process of meiosis, which halves the chromosomes number in the gametes.
Thus, in the given case, fertilization would lead to the formation of a zygote which would comprise twice as many chromosomes as the parents.
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What term describes the ocean as a storage location for this heat
The ocean acts as a heat storage location, termed 'ocean heat storage', due to its high heat capacity. It effectively moderates Earth's climate, absorbing heat and minimizing temperature extremes. Ocean heat content influences sea surface temperature, sea level, and currents.
The Role of the Ocean in Earth's Heat Budget
The term that describes the ocean as a storage location for heat is ocean heat storage. Oceans have a vast capacity to absorb and store heat due to their large heat capacity, making them significant regulators of Earth's climate. This large heat capacity not only diminishes seasonal temperature variations but also has a notable impact on climate on longer timescales. Ocean heat content determines various climate factors such as sea surface temperature, sea level, and currents.
Furthermore, the property of water that enables oceans to act as heat reservoirs is its high specific heat capacity. This allows the oceans to absorb a large amount of heat with little change in temperature, influencing the Earth's climate by moderating temperature extremes. The thermal energy transported by ocean currents varies and has historically played a key role in climate phenomena like the development of ice ages.
With about 90% of the observed increase in Earth's heat content going into the ocean, it is clear that the oceanic heat budget is a critical concept in understanding global climate patterns and their variations.
the tiny things that materials are made from and a quality of a substance that describes how it appears or behaves
The tiny things that materials are made from and a quality of a substance are atoms.
What are the characteristics of atoms?Every atom is composed of a nucleus and one or more electrons bound to the nucleus. The nucleus is made of one or more protons and a number of neutrons. Only the most common variety of hydrogen has no neutrons.
An atom is a particle of matter that uniquely defines a chemical element. An atom consists of a central nucleus that is surrounded by one or more negatively charged electrons. Atoms were created after the Big Bang 13.7 billion years ago. As the hot, dense new universe cooled, conditions became suitable for quarks and electrons to form.
Atoms are indivisible particles, which cannot be created or destroyed in a chemical reaction. Atoms of a given element are identical in mass and chemical properties.
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HELP PLEASE!
An osteocyte is a cell that...
A. maintains the bone matrix
B. reabsorbs or breaks down the bone matrix
C. forms the bone matrix
D. specializes into other bone cells
How does a whale-fall community affect ocean sediment?
Answer:
The sediment is transformed into food for mussels and crabs
Explanation: