Human activity would likely decrease the salamanders' survivability is the growth of cities, which has led to greater use of water by people and increased problems of water pollution and sludge buildup.
What leads to the disappearance of the species?Reducing the flow of water from springs is the biggest threat to the survival of Salamandra San Marcos and other animals and plants dependent on the springs. The growth of cities has led to greater use of water by people and has increased problems with water pollution and sludge buildup. The introduction of non-native species is also a threat because they can destroy aquatic vegetation, attack endangered animals or compete with them for food.
With this information, we can conclude that human activity would likely decrease the salamanders' survivability is the growth of cities, which has led to greater use of water by people and increased problems of water pollution and sludge buildup.
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Select from the drop-down menu to correctly complete the statement.
A _____ is a group of individuals of the same type that live in a particular area.
What is the regulation of stable internal conditions inside an organism or a cell?
A. Responding to stimuli
B. Homeostasis
C. Obtaining and using energy
D. Cellular respiration
Answer:
(B) homeostasis
Explanation:
Homeostasis is the maintenance of a stable internal environment. Homeostasis is a term coined to describe the physical and chemical parameters that an organism must maintain to allow proper functioning of its component cells, tissues, organs, and organ systems.
Pls helpthe sun hits the ocean at the equator more directly than at the poles. how does this support the flow of currents in the ocean?
The Sun creates a lot of thermal energy in the atmosphere and the oceans. Currents created as warm equatorial waters move to the north carrying heat. Due to this, the cold polar waters go south, and there get heated.
What is thermal energy?Thermal energy refers to the energy within a system and is responsible for its temperature.
The Sun heats up the air at the equator. This air will move toward the poles and cools down there with time.
In this process, the wind that occurs due to air currents will induce currents at the ocean surface.
The currents at this surface are propagated down deeper due to the differences in the forces on different parts of the water.
Thus, It is the main reason that the sun hits the ocean at the equator more directly than at the poles.
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Why would someone living in Zone 3 (last frost date is late
May) or Zone 4 (last frost date is early June) decide to plant
seedlings, which are young plants grown indoors from
seeds, rather than seeds directly into the ground?
Homogeneous means?
A. The components of the mixture form a single phase
B. The particles of a solution are in harmony with each other
C. The solution can change phases
Answer:
B.
Explanation:
wont let me say the word but it means to be the same as something according to gogle. SO it would make sense that if something was the same as another for them to be in harmony.
what is the difference between an extinct species and a mass extinction?
Answer:
Well, an extinct species refers to a single species completely dying off whereas a mass extinction happens when a massive number of species all dye off at the same time.
Explanation:
For example, when the asteroid wiped out all the dinosaurs that was a mass extinction, but the gradual disappearance of the African Black Rhino would simply be considered as an extinct species because of the fact that not every kind of Rhino to ever exist was wiped out.
How many units of energy would there need to be in the first trophic level to end up with 1000 units of energy in the second? in the third? in the fourth?
Answer:
(First) 10,000--->1000--->100-->10 (fourth)
Explanation:
Each trophic levels gets reduced by factor of 10.
Thus if you start with 10,000 in first, then you end with 1000 in second, 100 in third and 10 in forth.
Traits are passed from parents to offspring. These traits are determined by
(1) chromosomes, located on genes, found in the nucleus
(2) genes, located on chromosomes, found in the nucleus
(3) chromosomes, located on genes, found in the ribosomes
(4) genes, located on chromosomes, found in the ribosomes
Answer:
The traits that are transferred from the parents to the offspring during reproduction are determined by genes, located on chromosomes, found in the nucleus.
Explanation:
During reproduction, there is a fusion of;
male gamete
female gamete
This leads to the formation of offspring. There is a transfer of traits from the parents to the offspring.
Hence, the traits that are transferred from the parents to the offspring during reproduction are determined by genes, located on chromosomes, found in the nucleus.
Answer:
(2) genes, located on chromosomes, found in the nucleus
Explanation:
Traits are determined by genes which are located on chromosomes. Chromosomes, on the other hand, are located in the nucleus.
What is a keystone species? Why are keystone species important? Give and example.
Answer:Key stone
Explanation:
Keystone species hold together the complex web of relationships in an ecosystem. They can be animals, plants or microorganisms. Examples of keystone species include starfish, sea otters, wolves and elephants.
olfactory cells and taste buds are normally stimulated by ________.
Answer:
The answer is substances in solution.
Explanation:
Olfactory cells and taste buds are normally stimulated by substances in solution.
Olfactory cells are normally stimulated by odorants, which are chemical substances that are volatile and capable of being detected by the sense of smell.
Taste buds, on the other hand, are normally stimulated by tastants, which are chemical compounds that can be tasted. Tastants include various molecules such as sweet, sour, bitter, salty, and umami compounds.
Both olfactory cells and taste buds play crucial roles in our perception of smell and taste, respectively, and they are stimulated by specific chemical substances that interact with receptors present in these sensory cells
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Magnifying Living Things
In this activity, you will look at six samples from living things under a magnifying glass.
Estimated time to complete: 20 minutes
You will need these materials:
magnifying glass (At least 10× magnification)
a leaf
a twig or tree bark
the skin on your hand
a flower
a strand of your own hair (or a sample of pet hair, if you have a dog or cat)
a sample of your choosing
Data Collection
In this activity, you will magnify samples from the five living things listed below. You must also include one sample of your own choice. Your sample could be from a plant, animal, human, or anything that is living.
a leaf
twig or tree bark
the skin on your hand
a flower
a strand of hair
a sample of your choosing (Grass)
Part C
Part C
Did you observe any other characteristics of life in your samples?
Part D
For each of your samples, research how the structures you observed under magnification help the organisms carry out basic functions of life. Write your findings in the space provided.
Answer:
"bark" (and any subsequent words) was ignored because we limit queries to 32 words
Explanation:
-_-
What are some of the ways modern Americans rely on a global agriculture system?
Critical Thinking Questions
The U.S. is a leader in agriculture and food globally. In the last 150 years, technologies and innovations in the production, transportation, and retailing of food have developed economic growth at home and provided affordable food to the of people of the world.
What is the role of globalization in agriculture?Globalization has developed agricultural production and resulted it in growing much faster compared to the ones in the past.
Before the fast growth was around over 3 percent per year. Now at this time, it is 4 to 6 percent.
However, these increased rates of growth involve a particular change in its composition.
Thus, it can be concluded that globalization helped billions of people to overcome extreme poverty and improved their lives.
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DNA is composed of repeating structural units called
.
is the five-carbon sugar found in DNA.
Answer:
It is composed of repeated structural units called nucleotides.
Deoxyribose is the five carbon sugar found in DNA
Answer:
DNA is composed of repeating structural units called nucleotides
Deoxyribose is the five-carbon sugar found in DNA.
given the dna sequence of tcg what would be the mrna created
why is nicotine harmful for you
Common Side Effects: Nicotine is known to cause decreased appetite, heightened mood, increased heart rate and blood pressure, nausea, diarrhea, better memory, and increased alertness.
Describe the process of coronary circulation.
Explanation:
Blood is pumped from the left ventricle of the heart through the aorta and arterial branches to the arterioles and through capillaries, where it reaches an equilibrium with the tissue fluid, and then drains through the venules into the veins and returns, via the venae cavae, to the right atrium of the heart
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In your own words wright a paragraph of the process of the respiratory system. 4-7 sentences
Answer:
First, you breathe in oxygen through your trachea. The air travels down through the trachea to your lungs. Then your lungs transport the oxygen through your pulmonary artery to your heart. Then the heart transports the oxidized blood throughout your body. Then once the blood gives away all the oxygen your veins take the filtered blood through your pulmonary vein and back to your lungs to get oxidized again. I hope this helps
Explanation:
What are two global issues associated with using fossil fuels for energy?(1 point)
fossil fuels are nonrenewable, so humans will run out of them eventually. burning fossil fuels also only damages nearby ecosystems.
fossil fuels are nonrenewable, so humans will run out of them eventually. burning fossil fuels also contributes to global climate change by releasing carbon dioxide into the atmosphere.
fossil fuels are nonrenewable, so humans must use less to allow them to be replenished naturally. burning fossil fuels also contributes to global climate change by releasing carbon dioxide into the atmosphere.
fossil fuels are nonrenewable, so humans must use less to allow them to be replenished naturally. burning fossil fuels also only damages nearby ecosystems.
Answer: b. fossil fuels are nonrenewable, so humans will run out of them eventually. burning fossil fuels also contributes to global climate change by releasing carbon dioxide into the atmosphere.
Explanation:
Fossil fuels are limited and we will run out of them eventually. They cannot be replenished in a single human's lifespan. Fossil fuels contribute to the destruction of ecosystems, but not only that. They release carbon dioxide into the atmosphere that warms the Earth. Therefore, anything other than B. would be incorrect.
Which of the statements best describes the way you would engineer bacterial cells to produce a human protein?.
Answer:
Which of the following BEST describes the way you would engineer bacterial cells to produce a human protein? Use restriction enzymes to cleave both the donor DNA and the vector DNA.
3. In science, a theory is more like a scientific law than a hypothesis. A theory
explains a set of observations or events. It must be verified multiple times by
many different scientists. One scientist cannot create a theory on his or her own.
a) Look back at your hypothesis from question 2. Could this hypothesis become
a theory if you repeated your experiment 100 different times and got the same
results? Can a theory be created by just one person? (2 points)
Answer:
No
Explanation:
A theory cannot be made by one person, no matter how many times they repeat the experiment. Therefore, you repeating the experinment does not make it a theory. The experinment must be repeated by others and get same result as you to confirm it as theory.
Which gland/organ is responsible for the production of estrogen and ova?.
Answer:
Ovaries•function of the ovary is to produce the egg which develops in the Graafian follicle. The ovary is also responsible for the production of the hormones progesterone and estrogen.
What volume will 454 g (1 lb.) of H₂ occupy at 1.05 atm and 25.0°c
Answer:
Explanation:
V = 5.24 × 10^3L
What does X represent in this model?
A. air
B. light energy
C. oxygen gas
D. water
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What species is the gray whale?
A Reptile
B Cetacean
C Lepidoptera
D Salmon
Answer:B Cetacean!
Explanation: Cetacean means marinemarine mammal and Gray Whales are mammals. #Im a teacher :)
Ex
Elizabeth wants to test DNA using Restriction Fragment Length Polymorphism (RFLP). What type of DNA sample would MOST likely be successful using RFLP
The type of DNA sample that would MOST likely be successful using RFLP is a sock soaked in human sweat.
What is RFLP?Restriction Fragment Length Polymorphism (RFLP) is a type of molecular marker used to identify samples of DNA.
RFLPs are fragments of different lengths that can be separated by electrophoresis and then identified.
In conclusion, the type of DNA sample that would MOST likely be successful using RFLP is a sock soaked in human sweat.
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Answer:
a sock soaked in human sweat
Explanation:
a variation in the length of restriction fragments produced by a given restriction enzyme in a sample of DNA. Such variation is used in forensic investigations and to map hereditary disease.
Energy Flow in Ecosystems
Answer:
Energy flow in ecosystem is SOLAR ENERGY.
How does a nuclear reaction compare to a chemical reaction?
Answer:
Nuclear reactions involve a change in an atom's nucleus, usually producing a different element
Explanation:
Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei. Different isotopes of an element normally behave similarly in chemical reactions.
What are 4 mutations?
Answer:
Germline mutations occur in gametes. Somatic mutations occur in other body cells. Chromosomal alterations are mutations that change chromosome structure. Point mutations change a single nucleotide
A body of fresh water is shown below.
B
Which point in this body of water is most likely to be in the photic zone?
A. Point D
B. Point B
C. Point A
D. Point C
Answer:
Point B
Explanation:
Point B is getting the most light and is closet to the surface
Point B is getting the most light and is closet to the surface.
What is Photic zone?The daily cycle of light and dark in the photic zone of the world's oceans is maybe the most potent environmental signal accessible. Russell's suggestion that zooplankton resided in depths with the best light intensity was one of the early reports to propose that light had a major role in vertical migration.
He went on to say that as animals strayed from this zone of ideal light intensity, physiological responses governed by photochemical systems prompted them to come back.
Subsequent reviewers came to the conclusion that there was a lot of (although speculative) evidence that light had a substantial role in controlling fish's vertical migration.
Therefore, Point B is getting the most light and is closet to the surface.
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Which of the following is not a pathogen?
A- Bacteria
B- Viruses
C- Fungi
D- Antibiotics
Answer:
Antibiotics is no a pathogen