answer explanation:
All group 16 elements combine with hydrogen to form hydrides. Acidic nature and bent shape decrease from water. The H-E bond length increases as the bond dissociation enthalpy decrease down the group. Thermal stability and reducing character also decreases because the H-E bond length increases down the group.
What evidence do the structures provide?the similar structure of the limbs indicates that the organisms evolved at the same time.the similar structure of the limbs indicates that the organisms evolved at the same time.the similar structure of the limbs indicates that the organisms share a common ancestor.the similar structure of the limbs indicates that the organisms share a common ancestor.the similar structure of the limbs indicates that the organisms develop at the same rate.the similar structure of the limbs indicates that the organisms develop at the same rate.the similar structure of the limbs indicates that the organisms live in the same habitat.the similar structure of the limbs indicates that the organisms live in the same habitat.
The evidence provided by the structure is that: the similar structure of the limbs indicates that the organisms share a common ancestor.
What are homologous structures?Homologous structures are those structures that are similar and can be attributed to a common ancestor.
A common example of homologous structures in evolution are the wings of bats and the arms of primates.
Therefore, it can be said that evidence provided by the structure is that: the similar structure of the limbs indicates that the organisms share a common ancestor.
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Alternative energy sources come from renewable processes. please select the best answer from the choices provided t f
The statement 'alternative energy sources come from renewable processes' is TRUE.
What are alternative energy sources?The alternative energy sources are different types of energy produced by reversible natural processes.
These types of energy are constantly produced by the surrounding environment and can be reused.
The alternative energy sources include, among others, solar energy, wind energy, geothermal energy, etc.
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Answer:
true
Explanation:
The feature of earth movement that takes about 26000 years is called
It takes Earth's axis about 26,000 years to complete a circular "wobble." This wobble is called axial precession. Earth's axis helps determine the North Star, and axial precession helps change it.
Answer:
Precession
Explanation:
its precession
what is the name of the process that appears in the diagram below?
are humans susceptible to kind of resource shortages that affect populations of tbe other species?
Answer: People are somewhat susceptible. When it comes to food, you can often see examples of famines in "underdeveloped" countries that are extremely harmful to their populations.
What is the largest of the cranial nerves and the most important sensory nerve of the face?.
Answer:
The Trigeminal Nerve
Explanation:
The largest of the cranial nerves and most important sensory nerve of the face is the trigeminal nerve (letter C).
Topic : Photosynthesis and Energy transfer in food chains
App : Teams Homework
Note : it’s ok if u can’t write an essay but can anyone please share their ideas so I can put it together
Which types of cells form a cell plate during cytokinesis
Answer:
animal daughter cells
Explanation:
Instead of plant cells forming a cleavage furrow such as develops between animal daughter cells, a dividing structure known as the cell plate forms in the cytoplasm and grows into a new, doubled cell wall between plant daughter cells. It divides the cell into two daughter cells.
If you cook a marshmallow a few feet above a camp fire, it will cook mostly
by
A) radiation
OB) conduction
C) convection
EXPLAIN YOUR ANSWER
I DONT TAKE LINKS OR FILES
This Is Multiple Choice!!!
The motion of the Earth is modeled here as it moves on its axis and around the Sun. Which of these statements correctly identifies
how the illustration supports the concepts of seasons on Earth? Select ALL that apply.
A)
The tilt of the Earth is responsible for the seasons.
B)
The rotation of the Earth is responsible for the seasons
Eliminate
c)
The proximity of the Earth to the Sun is responsible for the seasons.
D)
The revolution of the Earth around the sun is responsible for the seasons.
E)
The intensity of the sunlight on Earth is different as the Earth revolves
around the sun
Answer:
this might not be right I don't know much about earth science but I believe your answer is A) D)and possibly B)
Explanation:
I hope this is right!
Answer:
its b and c
Explanation: its simple common sense like are you serious right now
what is the approximate time of death if the body temperature was 10 degrees celcius
Answer:
I think it would be 2 to 3 days am so sorry if am wrong
Explanation:
F = c * {9/5} + 32 is the equation
F = 10 * {9/5}
F = 10 * 1.8
F = 18
check picture for question
Answer:
I can't see the writing please make it bold
Which of these is a threat to the survival of an ecosystem A.less biomass at higher levels of the food web B. competition among some consumers population C.a shrinking variety of animal and plant species D.predator prey population cycles
Answer:
Answer: C) In an ecosystem, prey and predator populations affect each other.
Think of cause and effect: The wolves keep the deer population in check because they hunt them. If the wolf population increases, the deer population goes down. If you reduce the number of wolves than the deer population goes up.
Hope this helps :)
Explanation:
Which of these BEST
describes the DNA
antiparallel double
helix?
A. BOTH strands run ONLY in the
3' to 5' direction.
B. BOTH strands run in random
directions.
C. ONE strand runs in the 5' to 3'
direction, and the other strand
runs in the 3' to 5' direction.
one strand runs in the 5' to 3' direction, and the other strand runs in the 3' to 5' direction.
How is DNA helix antiparallel?The strands of a DNA double helix are said to be "antiparallel" because the have the same chemical structure, but are opposite in direction.
What does it mean that the DNA double helix is antiparallel?Antiparallel strands of a DNA molecule means that the phosphate groups at the start of two DNA strands are in opposite position (pole).
Hence, C is correct option
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GIVING BRAINLIEST
What type of climate is experienced by cities that are close to large bodies of water as compared to inland cities at the same latitude?
Bigger changes in temperature and lower levels of precipitation. X
Hotter temperatures and a bigger range of different types of precipitation.
Milder temperatures and higher levels of precipitation. X
Much lower temperatures and lower levels of precipitation.
its not a or c so its b or d
science
Answer:
C
Explanation:
Being on the coast will result in milder temperature fluctuations because the nearby body of water helps regulate any big changes a city might occur. Being near the coast where lots of water is evaporating and forming clouds which then move inland and precipitate or rain, often fairly close to shore.
If this is on a self grading assignment the answer programmed may be wrong if it says C is wrong.
The process where a virus takes a segment of DNA from one bacterial cell and inserts it in another bacterial cell is known as?
Answer:
during conjugation, DNA is transferred from one bacterium to another. After the donor cell pulls itself close to the recipient using a structure called a pilus, DNA is transferred between cells.
Explanation:
hope this helps you;)
Answer:
the answer is conjunction
Select all of the limiting factors that are density-dependent. question 12 options: fire disease predation hurricane competition for food competition for light flood waste accumulation
The limiting factors that are density-dependent are disease, competition and predation.
What are the four main limiting factors in an environment?The common limiting factors in an ecosystem are food, water, habitat, and mate. The availability of these elements will impact the carrying ability of an environment.
As the population increases, food demand increases as well. Since food is a limited resource, organisms will begin competing for it.
Thus, disease, competition and predation are limiting factors.
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Which exocrine gland is indicated by the arrow? pancreas salivary glands liver lacrimal glands.
The exocrine gland indicated by an arrow is the liver.
What is an exocrine gland?
A gland that makes substances such as sweat, tears, saliva, milk, and digestive juices, and removes them through a duct or opening to a body surface.
Examples of exocrine glands include sweat glands, lacrimal glands, salivary glands, mammary glands, and digestive glands in the stomach, pancreas, and intestines.
Thus, the exocrine gland indicated by an arrow is the liver.
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Answer:
C) Liver
Explanation:
got it right on edge! Good luck <3
the diagram shows represents the number and age of fossils found in the grand canyon. the width of each shaded area in the diagram indicates the relative number of fossils found. which of the following statements is best supported by the fossil record
The fossil record from the grand canyon shows that organisms in group D were able to survive and remain relatively stable for the longest duration.
What are fossils?Fossils are remains of plantsand animals that have been preserved for a long time within rocks and underground.
The fossils records found in the grand canyon shows that the organisms in group D remained relatively unchanged while other organisms either went extinct or kept undergoing changes in their population.
Therefore, it can be concluded that the organisms in group D were able to survive and remain relatively stable for the longest duration.
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A sample of DNA contains 120 nucleotides, if 35 nucleotides are Guanine, how many nucleotides are Thymine?
(If you can show how you do it that would be great)
Answer:
25
Explanation:
In DNA, Guanine pairs with Cytosine, and Thymine pairs with Adenine. This tells us that there are equal numbers for each Guanine and Cytosine, and Thymine and Adenine. When there's 35 Guanine, there should be 35 Cytosine that goes with it. 120 - 2(35) = 50. The remaining 50 nucleotides are Thymine and Adenine, and since they are the same number, divide 50 by 2. 50 ÷ 2 = 25. There are 25 thymine in the sample of DNA.
Organisms in an ecosystem are independent. do you think humans have interdependent relationships with other organisms? explain your response
Answer:
Yes, humans are interdependent with many other organisms. We require animals to eat, as well as plants. All living things depend on their environment to supply them with what they need, including food, water, and shelter. Many living things interact with other organisms in their environment. In fact, they may need other organisms in order to survive.
Explanation:
Why is it important to continuously monitor seismic data?
Answer:
determining the frequency of occurrence of earthquake activity, evaluating earthquake risk, interpreting the geological and tectonic activity of the area, and providing an effective vehicle for public information and education
Explanation:
I looked it up
According to the food web, how many primary consumers are indicated?
Select one:
O a 2
O b. 1
O c.3
O d.4
Answer:
C. 3.
The grasshopper, rabbit, and mouse are all primary consumers. A primary consumer is an organism that consumes producers (plants/primary producers). A primary consumers only eat plants and dont eat any meat so the grasshopper, mouse, and rabbit would be the three only primary consumers.
Hope this helps! :D
As per the food web, the number of primary consumers is 3. The correct option is c.
A food web is a sophisticated network of linked food chains that represents the movement of nutrients and energy within an ecosystem. It exemplifies how various organisms in a society rely on one another for survival.
Herbivores, usually referred to as primary consumers, are very important to the food chain. They are organisms that consume plants or compounds derived from plants directly.
They act as a link between lower-level consumers (plants) and more affluent ones (predators). Rabbits, deer, cows, and other insects are a few examples of primary consumers.
Primary consumers use plant materials to get energy, but they also help control plant populations, affecting the ecosystem's general stability and balance.
Thus, the correct option is c. as it is having 3 primary consumers namely rabbit, grasshopper, and mouse.
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Plants manufacture their own supplies of carbohydrate. What are the raw materials and the waste product of this process? raw materials waste product A. Carbon dioxide and chlorophyll oxygen. B. carbon dioxide and water oxygen. C. oxygen and chlorophyll carbon dioxide. D. oxygen and water carbon dioxide.
Answer:
Carbon dioxide, water, and sunlight are the raw materials for photosynthesis. Photosynthesis is the process by which green plants make their own food from carbon dioxide and water in the presence of sunlight. The prepared food is glucose. To prepare one molecule of glucose, by the process of photosynthesis six molecules of carbon dioxide and six molecules of water is required. Six oxygen molecule is released as a byproduct.
Thus, the correct product are 'Carbon dioxide, water, and sunlight'.
Explanation:
A tooth has an exposed ______, a constricted ______, and one or more roots that anchor it to the jaw. multiple choice question.
Answer:
crown, neck.
Explanation:
A tooth has an exposed crown, a constricted neck, and one or more roots that anchor it to the jaw.
What traits were the most favorable for the environment of the hummingbirds?
Examples of places where Hummingbirds live:
Alaska all the way to ChilesTraits of Environment:
forested and woodedlots of flowershas grasslands and meadowsmarshes and Riparian corridorsDesert scrublandsCanyonGardens and backyards*hummingbirds really do live in diverse areasso that's why can live in so many different areas
Hope that helps!
How many oxygen molecules can one hemoglobin carry.
Answer:
The hemoglobin molecule has four binding sites for oxygen molecules: the iron atoms in the four heme groups. Thus, each Hb tetramer can bind four oxygen molecules.
Answer:
Oxygen binds reversibly to harem, so each hemoglobin molecule can carry up to four oxygen molecules. Hemoglobin is an allosteric protein; the binding of oxygen to one harem group increases the oxygen affinity within the remaining harem groups.
Help please tell me if I'm wrong
i believe the answer is C. however I'm not certain.
Why do many people believe the current aid to Africa situation is doing more harm than good?
A) Countries are only relying on charitable contributions from religious based organizations.
B) There is not enough money being sent to Africa to do enough good.
C) Most government to government aid has been pocketed by corrupt officials.
D) Most people in Africa are not educated enough to use the money wisely.
Answer:
yes it is C
Explanation:
i saw the answer on quizlet
How can gardeners and farmers add mineral nutrients to soil? (Select all that apply.)
They can heat the soil.
They can add compost to the soil.
They can add fertilizer to the soil.
They can water the soil.
Gardeners and farmers add mineral nutrients to soil by add compost and fertilizer to the soil.
How fertilizer enhance growth?Fertilizer enhanced growth of the plant because it has nutrients which the plants need for their growth and development so we can conclude that gardeners and farmers add mineral nutrients to soil by add compost and fertilizer to the soil.
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Classify the phrases based on whether they describe prostaglandins, leukotrienes, or both prostaglandins and leukotrienes
Prostaglandins and leukotrienes share some differences and similarities because they are derived from the same source.
Differences and similarities between prostaglandins and leukotrienesThe distinct or unique qualities of Prostaglandins is that:
In synthetic form , they are used to induce labor/ child birth,They stimulate uterine contractions, andcontain a ring structure with at least three or more carbons.The distinct features of Leukotrienes is that:
They trigger asthmatic response.The similarity between prostaglandins and leukotrienes is that:
They are derived from arachidonic acid andcauses inflammation.Learn more about arachidonic acid here:
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Prostaglandins and leukotrienes are eicosanoid lipid mediators which are derived from phospholipase-released arachidonic acid and are involved in various homeostatic biological functions and inflammation.
What produces Prostaglandins and leukotrienes?Eicosanoids, produced from arachidonic acid include prostaglandins, thromboxane, and leukotrienes in the placenta and various fetal tissues.
Prostaglandins: it is used in synthetic form, which is used to induce labor as it stimulates uterine contraction.Leukotrienes: it triggers asthmatic response. Prostaglandins and leukotrienes: It is derived from arachidonic acid and causes inflammation.Leukotrienes are formed in cells by arachidonate 5-lipoxygenase while arachidonic acid is an intermediate in formation process of prostaglandins.
According to their roles in vasodilation, both prostaglandins and leukotrienes causes inflammation.
Thus, it can be concluded that there are some similarities and some differences in both prostaglandins and leukotrienes.
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