Answer:
what he said
Explanation:
I NEED A ANSWER
Non-motile Cells have a nucleus Multicellular Living Reproduces sexually What Kingdom is being described by the above characteristics?
A) Kingdom Animalia
B) Kingdom Plantae
C) Kingdom Protista
D) Not enough information given
Answer:
B\
Explanation:
Mosses are examples of which type of plant?
Explanation:
Botanically, mosses are non-vascular plants
Which is the correct order the organisms would appear during primary succession?
Question 3 options:
Lichens, bushes and shrubs, grasses and annual flowers, trees, mosses
Bushes and shrubs, mosses, lichens, grasses and annual flowers, trees
Mosses, trees, lichens, grasses and annual flowers, bushes and shrubs
Lichens, mosses, grasses and annual flowers, bushes and shrubs, trees
The correct order for primary succession is lichens, mosses, grasses and annual flowers, bushes and shrubs, trees.
The correct order of organisms during primary succession follows a predictable sequence, starting from the colonization of barren land or rock by pioneer species to the establishment of more complex plant communities. Let's break down the options provided and identify the correct order:
1. Lichens, bushes and shrubs, grasses and annual flowers, trees, mosses:
This sequence starts with lichens, which is accurate as lichens are among the first organisms to colonize barren environments. However, it then jumps to bushes and shrubs, which typically come later in succession. Grasses and annual flowers generally establish themselves before trees. Finally, mosses usually appear before trees in primary succession. So, this sequence is not entirely accurate.
2. Bushes and shrubs, mosses, lichens, grasses and annual flowers, trees:
This order begins with bushes and shrubs, which are typically later successional species. Mosses come before lichens in primary succession, and grasses and annual flowers usually precede trees. Therefore, this sequence is also incorrect.
3. Mosses, trees, lichens, grasses and annual flowers, bushes and shrubs:
This sequence starts with mosses, which is accurate as they are early colonizers. However, trees generally come after grasses and annual flowers in primary succession. Lichens typically precede grasses and annual flowers as well. So, this order is not correct.
4. Lichens, mosses, grasses and annual flowers, bushes and shrubs, trees:
This sequence begins with lichens, which is accurate as they are primary colonizers. Mosses usually follow lichens, making this part of the sequence correct. Grasses and annual flowers come before bushes and shrubs, which is accurate. Finally, trees typically represent the climax stage of primary succession, making this order correct.
Therefore, the correct order is Lichens, mosses, grasses and annual flowers, bushes and shrubs, trees.
Some lizards can undergo both sexual and asexual reproduction. Being able to reproduce asexually benefits the organism during times when mates are hard to find. Under what circumstances would asexual reproduction be most beneficial?
What are citrus fruits?
Which type of biotechnology would a dairy farmer use to mate the cows at his farm with genetically superior bulls to produce offspring that give high-quality milk? Genetic engineering because the genes of the cows are altered. Genetic engineering because cows with desirable traits are produced. Artificial selection because offspring with desirable traits are produced. Artificial selection because the process reduces the production time of offspring.
A type of biotechnology that would a dairy farmer use to mate the cows at his farm with genetically superior bulls to produce offspring that give high-quality milk is, that artificial selection because offspring with desirable traits are produced.
What do you mean by Biotechnology?Biotechnology may be defined as a group of technologies that deal with biological systems, living organisms, or parts of this to develop or create different products.
Human interference always leads to the production of desirable traits. This process is known as artificial selection.
This artificial selection always favors human needs. It is faster than natural selection and allows humans to develop organisms to their needs.
Therefore, the above example represents artificial selection because offspring with desirable traits are produced.
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What is cancer and how does it relate to the cell cycle? 2. what are proto-oncogenes and tumor suppressor genes, and how do they contribute to cancer? 3. what are some things that might make a person have a higher risk of developing cancer? 4. what are some of the major steps that occur in the progression from a single cancer cell to a tumor and then to many tumors spreading throughout the body? 5. as tumors grow and spread, the cells undergo a number of changes. how might the cells in a late stage tumor be different from the original cell that became cancerous? 6. why are different types of cancers named based on where in the body they originate (breast cancer, skin cancer, bone cancer, etc.)? why does it matter from which organ or tissue type the cancer developed?
A location in the northern hemisphere is currently experiencing the longest day. It is a day with more hours of sunlight than darkness. Which of the following could be the current month?
April
December
June
May
A location in the northern hemisphere is currently experiencing the longest day. It is a day with more hours of sunlight than darkness.
Which of the following could be the current month?
JUNE
Answer:
June has the longest day in northern hemisphere.
Explanation:
As Earth rotates on its axis which is tilted by 22.44° on its axis due to which the northern hemisphere receives more direct sunlight between March and September due to which northern hemisphere experiences longer days i.e more hours of sunlight. On 21 June the duration of the hours of sunlight received by the northern hemisphere is maximum. This is also known as Summer solstice .
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Which statement best explains the role of weathering and erosion in the rock cycle?
A. Rocks melt by this process.
B. Molten rocks solidify by this process.
C. They change the mineral composition of rocks.
D. They break rocks and transport them to new locations.
Answer:
The answer is D. They break rocks and transport them to new locations.
Explanation:
Weathering is the physical process in which a breakdown or breakage occurs in the rock, but without affecting its chemical or mineralogical composition, while the erosion of the rocks is the process that refers to the movement or transport of the material, in contrast to the alteration and disintegration of the rocks. It is one of the main factors in the rock cycle.
Which of the following steps is not likely to take place during cellular respiration?
Answer choices
A. Oxygen combines with carbon of simple sugar
B. Energy molecule transfers energy to cells
C. Simple sugar breakdown
D.Energy is used up
To conserve body heat, vasoconstriction restricts blood flow to the periphery but not to the body’s core. Explain how this is an adaptation for survival
Vasoconstriction is a survival adaptation because restricting blood flow to your "periphery" allows more warm blood to be pumped to your vital organs, keeping them alive.
What is vasoconstriction?Vasoconstriction is the shrinking (constriction) of blood vessels engendered by the contraction of small muscles in their walls.
Blood flow is slowed or blocked when blood vessels constrict. Vasoconstriction can range from mild to severe. It can be caused by disease, drugs, or psychological conditions.
Vasoconstriction is required to maintain healthy blood flow and prevent your body from becoming too cold. It can also be used to raise blood pressure when necessary.
Some medications cause vasoconstriction by mimicking your body's natural signals. This could save your life.
Vasoconstriction is a sustenance adaptation because it allows more warm blood to be circulated to your vital organs, keeping them alive.
Thus, this way this is an adaptation to survival.
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spores of the first known terrestrial plants have been found in what strata
Compare and contrast the terms living and biotic
The terms 'living' and 'biotic' are used in biology, each with distinct meaning. 'Living' refers to organisms that demonstrate the characteristics of life, while 'biotic' refers to all biological components, living or dead, within an ecosystem.
Explanation:The terms living and biotic are often used interchangeably in biology, but they carry subtle differences. When we say 'living', we are typically referring to anything that exhibits all characteristics of life - growth, reproduction, metabolism, response to environment, and evolution. For example, animals, plants, and microorganisms.
However, the term 'biotic' is broader and not limited to only living organisms. It encompasses all biological factors in an ecosystem, including organisms, their residues, and their influences on each other. Biotic factors include living organisms (like plants and animals), dead organisms, and components produced by organisms (like waste products).
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Some common environmental factors influencing pregnancy include all of the following EXCEPT:
Answer:
B
Explanation:
Why is soil important for terrestrial ecosystem?
Which of these is the direct result of an error in the transcription of a DNA nucleotide?
The right answer is A codon sequence is incorrect.
Biologists have compared the corresponding DNA and RNA sequences in B cells (white blood cells), the material being provided by various ongoing sequencing projects. They identified more than 10,000 sites where the two molecules differ, with about 40 percent of the genes having at least one transcription error. This error can be found at the level of the codons of the amino acids, which implies a change of one amino acid by another.
The result of an error in the transcription of a DNA nucleotide is a codon sequence is incorrect.
Transcription:
It is the process in which DNA code is converted to the mRNA code. 3 nucleotide combination code for an amino acid.If there is an error in the in the transcription result in defect in codons. and this result defective proteins.So, the result of an error in the transcription of a DNA nucleotide is a codon sequence is incorrect.
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Marcia reported the following symptoms to her physician: severe weight loss, increased anxiety, and sweating. After several tests, Marcia’s physician determines that she has a very high basal metabolic rate and confirms Marcia’s diagnosis as . Her physician prescribes as the best treatment for her condition.
Marcia is diagnosed with hypermetabolism. One pathological cause of hypermetabolism is thyroid disorder (hyperthyroidism). It could also be caused by injury or infection in the body. There is no single treatment for the disorder since it is merely a symptom of an underlying problem. It could be managed by nutritional support coupled with pharmacological treatment such as diuretics and regular insulin.
Answer:
She is diagnosed with hypermetabolism.
Explanation:
Hypermetabolism is metabolism at an excessive or increased rate and it is characterized by the abnormal increase in basal metabolic rate. It can signal the issues like hyperthyroidism. It occurs generally after significant injury to the body and the most common causes in the institutions and hospitals are burns, sepsis, traumas, infections surgery, bone marrow transplants etc. Its cause and location can be detected by PET scan. The symptoms includes anemia, sudden weight loss, fatigue, elevated heart rate, excessive sweating etc. It is itself a symptom and not an independent disease, treatment firstly requires attention to the underlying disease. The symptoms will subside, once the underlying cause is remedied.
The quiver tree grows in southern Africa which of the following plant adoptions is likely to prevent these trees from dying out due to Rising Desert temperatures?
Releasing a black powdery substance on their trunk
shifting they're growing range towards the equator
shifting they're growing rage towards the poles
limiting seed dispersal to nearby locations
A forest fire destroyed large tracts of forest in California.however, within a few years , the forest regenerated and will soon return to its original state . What is the reason the forest is able to regenerate?
A person who is interested in learning more about the "fight or flight" response may pursue a career in
endocrinology
gene therapy
microbiology
sports medicine
Answer:
The correct answer would be endocrinology.
The fight and flight response are stress response generated or regulated by hormones such as epinephrine and norepinephrine which are released from the adrenal gland.
Other hormones like testosterone, estrogen, and cortisol and neurotransmitters such as dopamine and serotonin also affect the organism's response to stress.
Thus, endocrinology would be the best career in order to learn more about these responses as endocrinology refers to the branch of science which deals with the endocrine system, hormones, and associated diseases.
Jupiter’s Great Red Spot has been observed by astronomers since the 1600s. But what is it exactly?
Which of the following will increase the salt concentration in seawater?
A:) evaporation
B:) precipitation
C:) runoff
D:) ice cap melting
Under a microscope, you can see that a plant cell has only half the usual number of chromosomes. What stage of the plant’s life-cycle are you witnessing?
what is meant by high air pressure
Many scientists worked together to form a realistic model of the structure of the DNA molecule.
Part A: What was Erwin Chargaff’s major contribution to what we now know to be the structure of DNA? (2 points)
Part B: How did Watson and Crick’s research confirm Chargaff’s conclusion through their development of the model of DNA? (2 points)
Final answer:
Erwin Chargaff discovered the base pairing rules critical for DNA structure, which was confirmed by Watson and Crick through their double helix model, integrating Chargaff's rules with X-ray diffraction data.
Explanation:
Part A: Erwin Chargaff's major contribution to our understanding of DNA structure lies in his discovery of specific pairing rules, known as Chargaff's rules. He observed that in DNA, the amount of adenine (A) always equals the amount of thymine (T), and the amount of guanine (G) always equals the amount of cytosine (C). This finding was critical for deciphering the double helical structure of DNA.
Part B: James Watson and Francis Crick's research confirmed Chargaff's conclusions by incorporating them into the development of the DNA model. Utilizing the principle that A pairs with T and G pairs with C, alongside X-ray diffraction data from Rosalind Franklin, they proposed a double helix structure. In this structure, each strand of DNA is composed of a long chain of nucleotide pairs, with hydrogen bonds between A and T and between G and C, explaining Chargaff's observations and providing a physical mechanism for DNA replication.
Look at the diagram above of a marine food web. What might happen to this ecosystem if the non-native populations of smelt and alewife increase greatly?
Question 1 options:
1.The smelt will eat the alewife.
2.The salmon will starve.
3.The smelt and alewife may out-compete the native fish by consuming all of the zooplankton.
4.Nothing should happen to this ecosystem if the populations of smelt and alewife increase greatly.
https://learning.k12.com/content/enforced/355549-COF_ID90293/native%20and%20nonnative%20species%20diagram.JPG?_&d2lSessionVal=rxl7Rt97bvS7kurIszdj3PvgN
Evaluate the following scenario: Two days after visiting a pet shop and observing green parrots in a dis- play cage and fish in an aquarium, a student developed a fever, became quite ill, and was diagnosed with parrot fever. What might be the dis- ease reservoir and possible transmis- sion method?
The student most likely got parrot fever from inhaling aerosolized bird droppings or secretions from green parrots, which served as the disease reservoir. This transmission method is typical for zoonotic diseases. Proper handling and hygiene can help prevent the spread of such infections.
The student likely contracted parrot fever (psittacosis), a zoonotic disease caused by the bacteria Chlamydia psittaci, which can be transmitted from birds to humans.
The disease reservoir in this scenario is the green parrots observed at the pet shop. The probable transmission method is through inhalation of aerosolized bird droppings or secretions that contain the bacteria.
Parrot fever typically presents with flu-like symptoms, including fever, headache, and respiratory issues. It's important to handle birds with care and ensure good hygiene to prevent the spread of zoonotic diseases like these.
Prehistoric remains of animals consist almost exclusively of bones and teeth. Why?
Zoo-archaeology is the branch of archaeology dealing with the study of faunal remains which are the remains or the items left after the death of the animal. These items mainly consist of bones, chitin, scales, teeth, hair and sometimes proteins or DNA. The skin, muscles or other organs usually are not found as they get damaged and decompose over the time by decomposers, by physical or environmental agents. This causes problems to identify and interpret the significance from these faunal remains as these provide incomplete information.
In a reflex arc, a motor neuron sends a signal that causes a response in the
What do scientists think forms the Moon's core?
The Moon's core is thought to have formed from a giant impact between Earth and a Mars-sized object. This event fragmented and mixed materials from both bodies, with the less dense splatter forming the Moon's smaller, metallic core composed mostly of iron, sulfur, and nickel.
According to this hypothesis, Earth was struck obliquely by an object roughly the size of Mars, sometimes referred to as Theia. This collision led to a violent mixing and scattering of material from both Earth and Theia, with the lower-density material coalescing to form the Moon. As a result, the Earth retained a higher density, with a thicker core, while the Moon developed a distinct crust, mantle, and a smaller metallic core mostly composed of iron, with some sulfur and nickel.
The Moon's core is estimated to be 600 to 800 kilometers in diameter, significantly smaller compared to Earth's. This hypothesis is supported by evidence including the moon rock samples gathered by astronauts, data from the GRAIL spacecraft, and studies conducted using seismometers during the Apollo missions. These findings suggest that the Moon's interior lacks a large metal core, has a crust depleted of water and volatiles, and shares similar oxygen isotope abundances with Earth, which supports the idea that it is made primarily of terrestrial mantle material.