15. The human body has
Considering zoo populations of lions, how can parentage information be helpful?
Answer:
By Budhan Pukazhenthi, SCBI Scientist
The International Union for Conservation of Nature’s Red List of threatened species, often considered the world authority on wildlife populations, lists African lions as vulnerable. “Vulnerable” is a classification that is not as extreme as “endangered,” “critically endangered” or “extinct,” but denotes that wild lion populations throughout the world are on the decline. As a result, it is important that healthy lion populations be managed in zoos as hedge against extinction.
Explanation:
The importance of getting to know the parentage information is to avoid inbreeding events as much as possible and increase genetic diversity -heterozygosity-.
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There are many challenges associated with captivity, and one of them is related to maintaining genetic diversity in the population, following the ex-situ conservation goal.
When selecting the animals to be kept in captivity, it is significant to consider a few aspects concerning genetic diversity maintenance. The main goal is to prioritize the original genetic material. Introducing a few animals of a species into the zoo might be considered an example of the founder effect. Just a pregnant female is enough for it to occur. And the most significant problem associated with this event is the loss the genetic diversity or variability. When breeding animals in captivity, there is a high risk of losing some genes and fixating others due to inbreeding.
An increase in inbreeding events means a significant reduction in genetic diversity, leading to a reduction in the fitness of individuals.
Inbreeding can be defined as mating events between related individuals. These events lead to an increase in the frequency of h0m0zyg0us individuals and a decrease in heter0zyg0us individuals. It means the loss of genetic variability. So, inbreeding is going on whenever the zygotes are formed by gametes proceeding from biologically related individuals.
In general, inbreeding occurs in small isolated populations and is closely related to the loss of aptitude. A reduction in population fitness might eventually end in its extinction.
In zoos, the importance of getting to know the parentage information is to avoid these inbreeding events as much as possible and try to enhance diversity -heterozygosity-. Knowing genetic information about parental animals is an important tool to manage crosses, avoiding genetic problems, and increasing genetic diversity.
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2. What is the pH of a very acidic solution?
a:5
b:10
c: 1
d:14
How can you apply the scientific method to a problem?
Explanation:
make an observation
ask a question
from a hypothesis or a testable explanation
make a prediction based on hypothesis
test a prediction
iterate: is the results to make new hypothesis or prediction
Which is not accurate concerning plate tectonics?
a.Some continents are drifting apart
b.There are seismic activity at the margins of the crustal plates
c.The continents ride on crustal plates
d.The continents are fixed in position
Answer:
There are seismic activity at the margins of the crustal plates , I think
Which of the following describe ecosystem services?
I. Farmland
II. Pollution
III. Seed disbursement
What is an analogous structure?
A. a structure that has the same form but
different functions like an arm, fin, and wing
B. a structure that has the same function but
different forms like the wing of a bee and wing of
a bat
C. a structure that used to serve a purpose but
does not have a purpose in modern species
D. a structure that is similar in all developing
embryos
Please help! How does the circulatory system work at the tissue level?
A) The heart pumps the blood.
B (Blood cells carry nutrients.
C) Nutrients are delivered throughout the body.
D) Cardiac muscle contracts.
Answer:
B
Explanation:
The circulatory system is a network consisting of blood, blood vessels, and the heart. This network supplies tissues in the body with oxygen and other nutrients, transports hormones, and removes unnecessary waste products.
Answer:
The circulatory system work at tissue level by following points
=nutrients are delivered throughout the body
Alien recipe virtual Arkansas
Answer:51
Explanation:
Describe how observations that are not consistent with
current scientific understanding should be treated.
Answer:
They should be tested several times over to check for corrections and investigated further.
They should be tested many times over to check for corrections and investigated further.
What are scientific thinking?Scientific thinking is a type of knowledge that includes intentional information seeking, including asking questions, testing hypothesis and making observations as well as recognizing pattern.
The scientific or scientists are clear as to the purpose at hand and questions at the issue. The scientific essential standards that should be implies on the elements of scientific thought such as clarity relevance depth, breath, logic and accuracy.
The scientific thinking prefers to thinking about the content of science and the set of reasoning process.
The example of scientific thinking is that question information, conclusions and points of view which is strive to be accurate, relevant and precise.
Therefore,they should be tested many times over to check for corrections and investigated further.
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how does the cell cycle relate to reproduction
Answer:
Cell division is the process by which a parent cell divides into two or more daughter cells. Both of these cell division cycles are used in the process of sexual reproduction at some point in their life cycle. Both are believed to be present in the last eukaryotic common ancestor.
Explanation:
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Which action shows a creative approach to the process of scientific inquiry
Answer:
What action shows a creative approach to the process of scientific inquiry? Answer Expert Verified Thus, to achieve the creative approach above the researchers must utilize and apply the scientific method in gathering, interpreting and analyzing empirical evidence.
Explanation:
Read the paragraph below from the section "A global hub of knowledge".
He argues that Western Europe was better placed than any other region to profit from the vast
flows of goods and ideas within the emerging global system of exchange. They used their
position to create the birth of modern science and the European Scientific Revolution. This
revolution was, in part, a response to the flood of new ideas pouring into Europe as a result of its
expanded contacts with the rest of the world.
How does the last sentence contribute to the development of the MAIN idea of the paragraph?
(A) The sentence explains the problem that caused the revolution.
(B) The sentence describes the solution to the problem that caused the revolution
(C) The sentence describes the revolution as the effect of a combination of different factors.
(D)
The sentence contrasts the revolution as it occurred in two different areas of the world,
The last sentence contributes to the development of the MAIN idea of the paragraph because it describes the revolution as the effect of a combination of different factors.
The fragment presented describes the privileged situation of Europe that allowed it to interact with the other regions of the world easily due to its location.
Europe remains at the "center" of market and exchange flows between Asia, America, and Africa. This dynamic caused it to be influenced by other cultures, which allowed it to develop scientific revolutions.
Accordingly, the last sentence of the fragment serves to illustrate the result of the favorable location conditions that Europe had concerning the other regions.
So the correct answer is C because it illustrates the main effect of a combination of different factors.
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The lowest stratum of the atmosphere is the ______.
O stratosphere
Otroposphere
O mesosphere
troposphere
Explanation:
the troposphere is starting at ground level
PLEASE HELP!!!!!
Summarize the nervous system's influence on the respiratory system.
O It stimulates pathogen response.
O It controls muscle contraction.
It regulates heart rate.
O It regulates breathing rate.
Explanation:
It controls muscle contraction.
Need the answers due in a hour
Answer:
1) Description of coal:
2)Benefits of using coal for electricity
3)Negative consequences of using coal:
Explanation:
1)Coal is a black rock formed by decomposing organic material over millions of years.
2)Coal contains more energy and it is also cheaper than other fossil fuels.
3)Using coal releases more carbon dioxide than other fossil fuels and fosil fuel alternatives, causing damage to land, water and air.
during the low point in the suns 11-year cycle, the ______ field lines up with the poles, resulting in ________ sunspots. At the peak of the solar cycle, _______ sunspots ten to form. During that phase of the solar cycle, intense bursts of radiation cause ______. This often occurs with coronal mass ejections, which are ______ from the sun.
Someone help me find the answers.
Answer:
When the low point in the sun's 11-year cycle, the Sun's magnetic field fills up with the poles, ending in slower time sunspots.
Explanation:
During the low point in the sun's 11-year cycle, the Sun's magnetic field lines up with the poles, resulting in slower time sunspots. At the peak of the solar cycle, Magnetic Disturbances sunspots ten to form. During that phase of the solar cycle, intense bursts of radiation cause tangling, crossing, or reorganizing of magnetic field lines near sunspots. This often occurs with coronal mass ejections, which are convection from the sun.Learn more about sunspots, refer:
https://brainly.com/question/16404654why does the central part of a red blood cell appear paler than the outer part when viewed under a light microscope
Answer: The central pale area of each red blood cell is due to the concavity of the disc.
Explanation:
The absence of a nucleus and light effect makes the central part of a red blood cell appear paler
The red blood cells ( RBC )does not have a nuclei like every other cells contained in the body. therefore when viewed under a light microscope the outside of the red blood cell will appear brighter ( pink ) while the center of the red blood cell will appear pale ( whitish ). also the the light intensity from the light microscope contributes to the pale nature of the central part of the red blood cell.
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find five uses of acid in your everyday life
Use of acids and bases in daily life
Hydrochloric acid used in the production of glucose from corn starch.Carbonic acid (H2CO3) is used in aerated drinks.Sulphuric acid is used in the manufacture of fertilisers, paints, dyes, chemicals, plasti-cs and synthetic fibres.Sulphuric acid is also used in car batteries.Explanation:
Uses of Acids. Uses of Bases
Trichloroacetic acid - removes warts, fouls wine Ammonium hydroxide – smelling salts
Acetyl salicylic acid – aspirin Aluminum hydroxide - fire extinguishers
Carbonic/phosphoric acid –. Bbbcarbonated drinks - KOH – alkaline batteries
Tartaric acid –. baking powder Calcium carbonate chalk, Tums
Which came first on planet earth, plants or animals
Answer:
We do not know entirely for sure
Explanation:
The vast majority of evidence points towards complex multicellular plants and animals evolving around the same time 500 million years ago during the Cambrian period. However, simple single-celled prokaryotic bacteria has been around for nearly a billion years. Personally I think it is more likely for plants to have come first as they are simpler and there seems to be a bit for evidence for them being first, like the discovery of multicellular algae that could be up to 1 billion years old (algae is generally considered to be bacteria)
It may be analyzed that land plants first appeared about 500 million years ago. It was the time of the Cambrian period. At this time, the development of multicellular animals does not begin at a systematic level.
When did the first prokaryotic cell was formed?The first prokaryotic cell was formed about 3.5 billion years ago. It was the time when no oxygen was present (anaerobic), the atmosphere was reduced, and the mode of nutrition was hetero chemotrophic.
The first eukaryotic cell was formed about 1.5 billion years ago which leads to the foundation of animal origination. It stimulates numerous changes with respect to the prokaryotic cell. But prior to that some land plants and fungi are already present which deliver the source of food to the developing living entities.
Therefore, according to researchers and scientists, it may be analyzed that the land plants exist before the animals through the help of the earliest fossils.
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True or False
The constants are analogous to the contestants of a sporting event
Answer:
True
Explanation:
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Which factor can potentially increase a teenager’s alcohol use?
Answer:
A teenager's decision to drink alcohol can be influenced by: early introduction to alcohol. exposure to adult binge drinking or alcohol dependence. access to alcohol from parents and others.
Identify an example of an Ecosystem Service?
A. All of the above
B. Pollination
C. Red tide
D. Deforestation
Answer:
Image result for Identify an example of an Ecosystem Service?A. All of the above. Pollination. Red tide. Deforestation
It's these long-term changes that are of particular concern to the authors, who review recent scientific literature to produce four examples of ecosystem services that are negatively affected by deforestation and degradation: carbon storage, water flow, regional climate influence, and disease vectors.
Explanation:
What can be used to collect and record scientific data
Answer:
Case Studies, Checklists, Interviews, Observation sometimes, and Surveys or Questionnaires are all tools used to collect data. It is important to decide the tools for data collection because research is carried out in different ways and for different.
Explanation:
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plate boundaries focus....
Answer:
May be your question is incomplete....Explanation:
May be your question is incomplete and please marks me as brainliests...La unión de aminoácidos forma una macromolécula llamada
help plz i will mark the brainlest plz anyone help
A scientific hypothesis should be specific and demonstrate the relationship between the independent variable and the dependent variable. Which of the following is the best hypothesis written in the correct format? Question 5 options: Cars on different surfaces skid at different speeds. If surface type affects friction, then cars on concrete will skid slower than cars on ice. If cars on concrete skid slower on ice, then concrete is the best surface I think a car on the concrete will skid the slowest.
Answer:
If surface type affects friction, then cars on concrete will skid slower than cars on ice.
Explanation:
This answer choice addresses both the independent and dependent variables. Surface type is the Independent variable, and the dependent variable is the speed the car skids.
hope this helped!
If surface type affects friction, then cars on concrete will skid slower than cars on ice. This statement is correct and the correct hypothesis.
What is a scientific hypothesis?
A scientific hypothesis is a theory that offers a speculative explanation for a phenomenon or a specific group of related events that have been observed in the natural world. The capacity to be supported or disproven by observation and experimentation are the two main characteristics of a scientific hypothesis, and they are embodied in an "If...then" statement that summarises the notion.
In the middle of the 20th century, British philosopher Karl Popper, who was of Austrian descent, established the idea that a scientific theory might be both falsified and tested.
The scientific method, the strategy used by scientists to try to comprehend and evaluate theories regarding natural events, includes the formation and testing of hypotheses. The process of developing a hypothesis is commonly referred to as creative and is based on prior scientific understanding, intuition, or experience.
Therefore, the correct hypothesis is the statement, that if surface type affects friction, then cars on concrete will skid slower than cars on ice.
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Fats are a primary example of which class of biomolecule? *
5 points
carbohydrates
lipids
proteins
nucleic acids
Answer:
Lipids
Explanation:
Lipds are fats
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layers of
make up the cell membrane.
The cell membrane is composed of two main layers called phospholipid bilayer. Each layer is made up of phospholipids, which are a type of lipid molecule.
These phospholipids have a hydrophilic (water-loving) head and a hydrophobic (water-fearing) tail. The hydrophilic heads are attracted to water, while the hydrophobic tails repel water.
The phospholipid bilayer consists of two layers of phospholipids arranged in such a way that the hydrophilic heads face the outside and inside of the cell, while the hydrophobic tails are sandwiched in between. This arrangement creates a barrier that separates the inside of the cell from the outside environment.
In addition to phospholipids, the cell membrane also contains other molecules such as proteins, cholesterol, and carbohydrates. Proteins are embedded within the phospholipid bilayer and serve various functions, such as transporting molecules across the membrane or acting as receptors for signaling molecules.
Cholesterol molecules are interspersed between the phospholipids and help maintain the fluidity and stability of the cell membrane. Carbohydrates are attached to proteins or lipids on the outer surface of the cell membrane and play a role in cell recognition and communication.
Overall, the cell membrane is made up of phospholipids, proteins, cholesterol, and carbohydrates, all working together to regulate the passage of molecules in and out of the cell and to maintain the integrity and functionality of the cell.
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The organelle that acts as the powerhouse by undergoing respiration, converting sugar to ATP is
the
a. chloroplast b. ribosome c. lysosome d. mitochondrion
Answer: D. Mitochondrion
Explanation:
The mitochondrion is always the powerhouse of the cell!
