archaea
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what were the synapsids
Identify two examples of organisms interacting with abiotic factors in the mono lake ecosystem.
These organisms include algae and birds. Algae in the lake use the sun in photosynthesis to manufacture their own food. Birds use the waters of the mono lake to clean their plumage. They clean their plumage to remove parasites and lice.
Nonnative species thrive in new ecosystems because they have superior gene pools.
a. True
b. False
A plant that has both male and female reproductive structures is able to do what
a. selfreolicate
Which are early (prodromal) clinical manifestations of hepatitis?
a. fatigue, fever, hyperalgia, and vomiting
b. light-colored stools, dark-colored urine
c. large, tender liver; itching; jaundice
d. pain in the left upper quadrant, splenomegaly?
The process of using the information in mrna to synthesize a protein is ______.
When different tissues work together, they form a(n)?
Primary succession is most likely caused by what?
Decide if each of the following are biotic or abiotic factors:
Mushroom (I think biotic)
Tree (i think biotic)
Dirt (I think abiotic)
Grapes (I think abiotic)
Grass( i think biotic)
Paper (I think abiotic)
Steak (I think abiotic)
Coral (I think biotic)
Athlete's foot (I think abiotic)
salad (I think abiotic)
mold (I think biotic)
A person who is depression-prone tends to have increased activity in his or her:
How is the work of the digestive and circulatory systems related to the respiratory system?
Which process stops when RNA polymerase comes to a terminator?
grad point
Transcription
Suppose the protein specified by bicoid was injected into drosophila embryos, so that a high concentration was present everywhere in the embryo. what might be the result of such an experiment
The right answer is The embryos would show no development of posterior regions.
Bicoïd is a maternal-effect gene deposited in the oocyte by the female during oogenesis. It is expressed at the level of the egg and is involved in the development of the anteroposterior axis in Drosophila and more precisely in the early determination of the development pattern of the anterior region in the embryo. This area develops later to form the head and thoracic part in adults.
It is also the first known morphogen, whose decreasing concentration gradient from the anterior part of the oocyte, specifies different regions in the embryo and allows the formation of its axes of polarity (thus its presence in the whole of the embryo implies that there is no development of the posterior part).
Bicoïd also has a homeobox that encodes a homeodomain. This sequence is involved in the regulation of the expression of several genes that lie along the anteroposterior axis of Drosophila. The protein, therefore, acts either as a transcription factor that stimulates the synthesis of mRNAs from DNA or as an inhibitor of the translation of mRNAs into proteins, depending on the genes involved.
The sa and av nodes are often supplied by both the ________ and ________ arteries.
1. Which statement is the best description of an ecosystem? (Points : 3)
An ecosystem is made up of individuals of the same species in the same place.
An ecosystem grows exponentially unless a factor limits it.
An ecosystem is a large tract of land that includes many species.
An ecosystem is a community and its surrounding nonliving environment,
The best description of an ecosystem is an ecosystem is a community and its surrounding nonliving environment. Therefore, the correct option is D.
A biological community made up of interacting organisms including members of different species and their physical, non-living surroundings is called an ecosystem. It includes both biotic (living) and abiotic (non-living) elements that affect and maintain a community, such as soil, water, air, and climate. Ecosystems can be found in a variety of habitats, including aquatic and terrestrial (land-based) settings.
Therefore, the correct option is D.
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(5.02 MC)On a food web diagram, seagrass is labeled as a primary producer, and a manatee is labeled as a primary consumer. What is the reason for this difference?
A-Both are at the first level of the food web, but primary producers eat primary consumers.
B-Primary consumers use energy from the sun to make their own food, while primary producers feed on dead organic matter.
C- Primary producers make organic matter using inorganic nutrients and energy, while primary consumers eat primary producers.
D- Primary producers eat the primary consumers, which make food using photosynthesis.
Ans. (C). primary producers make organic matter using inorganic nutrients and energy, while primary consumers eat primary producers.
A food web diagram represents a natural interconnection between organisms of an ecosystem to show what-eats-what in that ecosystem.
Primary producers are autotrophic, photosynthetic organisms that make their own food, in the form of organic compounds, by using inorganic substances, water and carbon dioxide. Examples of primary producers include green plants.
Primary consumers are heterotrophic organisms that cannot nake their own food. They are herbivorous organisms that feed on primary producers. Examples: deer, cow, and rabbit.
Thus, the correct answer is option (C).
Proteins such as interferons and interleukins released by the t cells are called what?
Proteins like interferons and interleukins that are released by T cells are called Cytokines, which are important for cellular communication, particularly in immune responses.
Explanation:The proteins released by the T cells, including interferons and interleukins, are called Cytokines. Cytokines are a broad group of small proteins that are essential for transmitting signals between cells. Interferons are types of cytokines that especially play a crucial role in our immune responses, they alert other cells to the presence of a pathogen (such as a virus) and stimulate them to mount an appropriate defensive response.
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Scientists have used computer models to create a series of maps that show how susceptible coastal cities and island countries are to the sea rising at different levels. The maps show that a 1-meter rise would swamp cities all along the U.S. eastern seaboard. A 6-meter sea level rise would submerge a large part of Florida. Thermal expansion has already raised the oceans 10 to 20 centimeters.
The MOST likely cause, directly and indirectly, for such a rise in sea level is
A) global warming.
B) increased sedimentation.
C) change in ocean salinity.
D) decrease in ocean density.
A client newly diagnosed with tuberculosis has a productive cough. which is the most appropriate nursing intervention to teach the client?
How does karyogram B differ from karyogram a
They differ in sex chromosomes.
Explanation:There are two types of chromosomes; autosomes(22 pairs) and sex chromosomes(1 pair).
While all the autosomes are same in the case of both male and female humans, sex chromosomes differ.
Human male has one X and one Y chromosome, while human female has two X chromosomes. Y is roughly shorter by half than the X chromosome.
Final answer:
Karyogram B may differ from karyogram A by having an extra chromosome (aneuploidy), missing a chromosome (monosomy), or displaying structural changes such as translocations. These alterations can be identified by comparing chromosome size, banding patterns, and centromere positions.
Explanation:
A karyogram is a visual representation of an individual's chromosomes, organized into homologous pairs. It shows the chromosome number, size, banding patterns, and centromere positions of a person's chromosomal makeup. Karyogram B is likely to differ from karyogram A in aspects such as the presence of an extra chromosome, which is a condition known as aneuploidy, the lack of a chromosome referred to as monosomy, or structural changes like translocations. To identify these differences, each chromosome is compared for size, banding pattern, and centromere position.
Karyogram B might show a genetic abnormality that can lead to various health conditions depending on which chromosome is affected and how it is altered. For example, if karyogram A is normal, and karyogram B displays an extra chromosome 21, this would be indicative of Down syndrome. Such comparisons are crucial in genetics and medicine for diagnosing chromosomal disorders.
PLEASE HELP EARTH SCIENCE! BRAINLIEST TO FIRST CORRECT ANSWER
Match a layer of the atmosphere with each statement. There are two statements per layer.
1. I fly a kite in this layer.
2. I cruise in a plane in this layer.
3. My cell phone works because of this layer.
4. shooting stars burn up in this layer.
5. The temperature is coldest in this layer.
6. The temperature is hottest in this layer.
7. The ozone layer is part of this layer.
8. Most weather occurs in this layer.
Here are the options. Remember, each layer has two statements that match it!
- Troposphere
- Thermosphere
- Mesosphere
- Stratosphere
The five layers of the atmosphere have unique characteristics that can be described:
tropisphere 1,8thermosphere 6,7stratpshere 2,3mesosphere 5,4What are the 5 layers of the atmosphere and their characteristics?Together, the five make up the atmosphere, the gaseous layer that surrounds the Earth and is responsible, among other things, for maintaining the planet's thermal balance, protecting against meteor impacts and filtering ultraviolet rays.
Associating the characteristics given in the statement we have that:
Troposphere: I fly a kite in this layer and Most weather occurs in this layer.Thermosphere: The temperature is hottest in this layer and The ozone layer is part of this layer.Mesosphere: I cruise in a plane in this layer and My cell phone works because of this layer. Stratosphere: The temperature is coldest in this layer and shooting stars burn up in this layer.See more about atmosphere layers at brainly.com/question/13958926
Sexual reproduction requires cells to undergo ______, whereas only _______ is necessary for asexual reproduction. meiosis; mitosis mitosis; fertilization fertilization; meiosis mitosis; meiosis
Answer:
Sexual reproduction requires cells to undergo meiosis, whereas only mitosis is necessary for asexual reproduction.
Sexual reproduction involves germ cells these are the cells which gives rise to gamates. Germline diploid cell undergoes meiosis to develop four haploid daughter germ cells. Asexual reproduction takes place in those organisms which cannot produce specialized cells for reproduction. Therefore, the cells undergo simple cell division for reproduction. In asexually reproducing cells mitosis takes place, in which one cell gets divided into two daughter cells.
In sexual reproduction, meiosis is required to halve the number of chromosomes, allowing for the combination of genetic material during fertilization. In contrast, asexual reproduction only involves mitosis to create identical daughter cells from a single parent.
Explanation:Sexual reproduction requires cells to undergo meiosis, whereas only mitosis is necessary for asexual reproduction. In sexual reproduction, genetic material is combined from two parents to create offspring. This process involves a type of cell division called meiosis where the number of chromosomes is halved, allowing for the combination of genetic material during fertilization. On the other hand, asexual reproduction involves a single parent and does not involve the fusion of gametes. This process requires mitosis, a form of cell division in which the daughter cells are genetically identical to the parent cell.
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The map shows tectonic plates on Earth. The red arrows indicate which plates are converging, diverging, or transforming. Identify the point closest to a subduction zone.
The point that will be closest to a subduction zone would be near the Australian plate.
What is a subduction zone?The subjection zone represents the biggest crashing scene possible on the surface of the earth. The boundaries of the subduction zone mark the region of collision between two of the planet's tectonic plates.
When two tectonic plates meet, one of them bends and slides underneath the other one to curve down into the mantle.
Both continental crust and the oceanic crust can be moved by tectonic plates. The denser crust is the oceanic crust. Therefore when the subduction zone is between oceanic crust and continental crust, the oceanic crust sinks to the mantle below the continental crust.
Colliding of the same kind of crust could result in both of them crashing and crumbling down. This is the way the massive chain of Himalayan mountains was created. Continental tectonic plates of India and Asia slammed into each other to form these mountains.
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5. What is another word for Lithogenous
The answer is Marine Sediments or Sediments. Lithogenous is a sediments derived from preexisting rocks on land, it is also a type of marine sediment that forms thickest deposits worldwide, and it is sediment that begins as rocks on continents or island. An example of lithogenous sediment is sandstone.
Which dna sequence results in an identical new sequence during both replication and transcription?
what layer of the atmosphere is most ozone gas found inside
Does precipitation occur ahead or behind a warm front?
Describe a human activity that disrupts the carbon cycle and the consequences of that disruption
Which process in the water cycle do plants perform? (2 points)
A 12 cup serving of soup has a total of 70 calories, 10 of which are from fat. what percentage of the calories are from fat?