Answer:
the biceps and triceps muscles work together to allow you to bend and straighten your elbow. When you want to bend your elbow, your biceps muscle contracts, and, at the same time, the triceps muscle relaxes.
Explanation:
Why does the earth have a magnetic field?
Answer:
QUESTION:
Why does the earth have a magnetic field?
ANSWER:
The magnetic field of Earth is caused by currents of electricity that flow in the molten core. These currents are hundreds of miles wide and flow at thousands of miles per hour as the earth rotates. The powerful magnetic field passes out through the core of the earth, passes through the crust, and enters space.
Explanation:
Hope this helps you out! :)
Have a great rest of your day/night!
no links please!
Two ecosystems are compared in terms of population size and species diversity. One ecosystem has a large number of individuals but low species diversity, while the other ecosystem has fewer individuals but greater species diversity due to high mutation rates. Which of the following statements best describes how these two ecosystems would respond to an environmental stress such as drought?
The ecosystem with greater diversity is less dependent upon resources and would suffer less from the drought.
The ecosystem with greater diversity is more stable and would, therefore, be more likely to withstand the drought.
The ecosystem with more individuals is less likely to suffer because it is more productive and, therefore, more stable.
The ecosystem with more individuals is more likely to have members that are drought-resistant and will survive and reproduce.
Answer: I had the same problem in one of my exams. I think the answer is "the ecosystems with greater diversity is more stable and would, therefore, be more likely to withstand the drought.
Explanation:
I chose this because it seems like the most logical explanation.
"The ecosystems with greater diversity is more stable and would, therefore, be more likely to withstand the drought. Thus, option B is correct.
What is biodiversity?Biodiversity is considered as the variety of living things found in the various habitats, such as terrestrial, marine, and desert ones, as well as the ecological groups to which they belong.
The variety of the creatures present in an ecosystem, as well as their relative abundances, is referred to as biodiversity. It also depicts the various stages of organism organization.
In ecosystem there are thirteen different grass species present and in ecosystem Y 1 species of grass present, that is, ecosystem X has a greater amount of biodiversity. So, during the drought, the bison in ecosystem X are better able to survive.
Therefore, "The ecosystems with greater diversity is more stable and would, therefore, be more likely to withstand the drought. Thus, option B is correct.
Learn more about biodiversity here:
brainly.com/question/23101752
#SPJ2
Scientists compare the structures of a chicken embryo and a human embryo at the same stage of development. They find that both vertebrates have similar shapes and structures, including the presence of gill slits and tails. How is this comparison of the embryos used as supporting evidence of evolution?
A. The similarities suggest that chickens and humans are the direct descendants of modern-day fish with tails and gill slits.
B. The similarities suggest that vertebrates pass through each of the adult stages of their evolutionary history as they develop.
C. The similarities suggest that vertebrates can undergo genetic changes during development that lead to the evolution of new species.
D. The similarities suggest that chickens and humans descend from ancestors with genes that code for the development of tails and gill slits.
Answer:
C
Explanation:
Answer: D. The similarities suggest that chickens and humans descend from ancestors with genes that code for the development of tails and gill slits.
Explanation:
it's right
Please don’t answer just for points if you don’t know and links will be reported
Do you think the organisms in image 3 support the theory that modern organisms evolved from ancestral organisms? Explain your answer.
Answer:
occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift.
Answer:Yes, the organisms in image 3 support the theory that modern organisms developed from ancestral organisms. The two organisms share similar body structures and traits. So, there will be similarities in their genes, and they’ll share an evolutionary connection.
Explanation: Edmentum answer
5. The cell fails checkpoint 2. It tries to repair its DNA, but can't. The cell performs apoptosis.
This statement is true for a [Select]
Answer:
False
Explanation:
Because it cant repair itself
A group of atoms bonded together is a molecule.
A. True
B. False
Answer:
A. True
Explanation:
A group of two or more atoms that are chemically bonded together is known as Molecule
-TheUnknownScientist
Mannitol is a drug that temporarily disrupts tight junctions. This drug is often added to medications that need to get into the extra-cellular fluid of the brain because it will make the capillaries of the ________ more permeable to larger molecules. Mannitol is a drug that temporarily disrupts tight junctions. This drug is often added to medications that need to get into the extra-cellular fluid of the brain because it will make the capillaries of the ________ more permeable to larger molecules. blood-brain barrier meninges ventricles arachnoid villi
Answer:
Mannitol is a drug that temporarily disrupts tight junctions. This drug is often added to medications that need to get into the extra-cellular fluid of the brain because it will make the capillaries of the blood-brain barrier more permeable to larger molecules.
Explanation:
The blood-brain barrier's components are endothelial cells, basement membrane, pericytes, and astrocyte endfeet. The gaps between endothelial cells are small. As a consequence, they form tight junctions that allow the passage of specific and small molecules. In this way, the barrier stops any pathogen from entering the brain. That is to say, that the blood-brain barrier is extremely selective; therefore, medications will not pass through it, so to allow the medicine to enter the brain extracellular fluid, the tight junctions of the endothelial tissue must be disrupted with mannitol.
Describe an experiment to show that
Shoots are positively phototrophic.
Answer:
A well-watered potted plant is placed inside the box. If the window is kept closed for about 24 hours the plant shows normal growth. If the window is kept open, it is found after two days that the shoot tip bends and grows towards light proving that it is positively phototropic.
Explanation:
Hope this helps! Brainliest pls?
7.
How is the rate of transpiration affected by decreasing temperature and by decreasing light
intensity?
decreasing
temperature
decreasing
light intensity
A
slower
slower
B
slower
faster
С
faster
slower
D
faster
faster
Answer:
B
slower
faster
Explanation:
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27 degrees celeius. What gas is being made?
Answer:
Oxygen
Explanation:
Plants in the presence of sunlight (a major requirement) are capable of manufacturing their own food via the process of PHOTOSYNTHESIS. Photosynthesis combines carbon dioxide (from atmosphere) and water (from soil) to produce glucose (carbohydrate) and oxygen gas (as a waste product). The equation as follows:
6CO2 + 6H2O ➡ C6H12O6 + 602
According to this question, a student is collecting the gas given off from a plant in bright sunlight at a temperature of 27°C. The process carried out by the plant exposed to the bright light is PHOTOSYNTHESIS, hence, the gas given off is OXYGEN.
Explain How the nitrogen cycle can be disrupted. PLEASE HELP DUE SOON!
What test is used to determine if the parents are carriers for Prader Willi syndrome prior from pregnancy?
Answer:
Noninvasive Prenatal Screening (NIPS) also called Noninvasive Prenatal Testing (NIPT)
Explanation:
What do you think the offspring of a green alien and pink alien will look like?
Answer:
of the parents' characteristics will appear in the offspring, but the characteristics that are more likely to appear can be ... o If you had the ability to genetically engineer your alien baby (choose its traits),
where does respiration take place?
Answer:
Mitochondria
Example:
Respiration takes place in the mitochondria of cell in the presence of oxygen which is called aerobic respiration.
In class, a student creates an image showing part of the process of protein synthesis.
What occurs in the cell to create the strand of mRNA needed before translation can occur?
Answer:
Yo the answer is A
Explanation:
A _______________ genotype has one capital and one lowercase letter.
On East Africa's Serengeti Plains, herbivores migrate across this area following what?
nuts
grasses
rivers
berries
Answer: Grasses! The north and west crossing the Grumeti River, There where more grass.
Look at the image. Which two
bases bond together in DNA?
A. Adenine-Guanine
B. Adenine-Thymine
C. Adenine-Uracil
D. Adenine-Cytosine
Answer:
The answer is B, adenine and thymine
Answer:
its b
Explanation:
( HELP ME PLEASE!!!)
Which of the following characteristics is not part of natural selection?
A)lizards developing long legs in order to climb better to avoid floods
B)monkeys swinging from high tree branches in the rain forest
C) mice changing from dark brown to light brown to better hide from predators in the sand
D) sharks colored white on the underside and blue or gray on the top
Pulmonary arteries transport ________.
A) oxygenated blood to the lungs
B) blood rich in carbon dioxide to the lungs
C) oxygenated blood to the heart
D) oxygenated blood directly to the aorta
No links or I'll report
Answer:
B
Explanation:
I would say this because the pulmonary circulation only transports deoxygenated blood. And this blood gets transported to the lungs so the lungs can absorb oxygen and release carbon dioxide. I am not sure about this one though. This is what I think.
Pulmonary arteries transport blood rich in carbon dioxide to the lungs also known as deoxygenated blood.
Blood Transportation:Arteries carry oxygenated blood in the body, and the pulmonary arteries carry deoxygenated blood to the lungs.The main pulmonary artery, or the pulmonary trunk, transports deoxygenated blood from the heart to the lungs.The main pulmonary artery branches into both a right and left vessel. The right pulmonary artery carries blood to the right lung. The left pulmonary artery carries it to the left lung.Thus, we can conclude that Pulmonary arteries transport deoxygenated blood from the heart to the lungs.
You can learn more about blood circulation here:
https://brainly.in/question/8748943
#SPJ2
Find the area of the triangle.
18 ft
17 ft
The area of the triangle is
fta.
Answer:
area is add so 17+18 is 35 ft
- Explain the relationship between group behavior, an organism's survival, and the change in a species over time.
- Formulate one scientifically testable question related to the affect of group behavior on an individual's survival.
- What evidence could be used to support a claim that answers your scientifically testable question?
Answer:
https://www.nap.edu/read/5787/chapter/6
https://www.nature.com/scitable/knowledge/library/how-does-social-behavior-evolve-13260245/
Explanation:
I hope that it will be helpful
Answer 3 questions please, thank you!
What resource below is not essential but is important to how we live our lives on Earth?
A. Water
B. Oxygen
C. Fossil Fuels
D. Plants
Which of the following is most important to cultivating food in order to sustain human growth?
A. Domesticating animals
B. Agriculture
C. Mining
D. Manufacturing
Which of the following involves making man-made products from natural resources?
A. Agriculture
B. Mining
C. Manufacturing
D. Urbanization
Answer: fossil fuels
Explanation: because we don’t need them but they help us life
Which of the following is NOT true of a reaction that breaks a bond?
A. It creates low-energy products
B. It is what happens in cellular respiration
C. It is an endergonic reaction
Answer:
C
Explanation:
Endergonic reactions use energy to build bonds
Exergonic reactions release energy through breaking bonds
C. It is an endergonic reaction.
Endergonic v/s Exergonic:
In the exergonic reaction, the reactants are at a higher free energy level than the products (reaction goes energetically downhill) while In the endergonic reaction reaction, the reactants are at a lower free energy level than the products (reaction goes energetically uphill). Endergonic reactions use energy to build bonds while Exergonic reactions release energy through breaking bonds.When a bond breaks, it creates low-energy products.In cellular respiration, breaking of bond happens.Therefore, the statement which is NOT true for a reaction that breaks a bond is option C.
Learn more:
brainly.com/question/14698440
Question 12 of 25
What is motion?
A. The shortest path from start to finish, coupled with a direction
B. The measurement of the force of gravity acting on an object
C. A change in the position of an object with respect to a reference
point
O D. A transfer of energy from one object to another
Answer:
C. A change in position of an object with respect to a reference point.
Answer: C
Explanation: I am currently taking the test
Which of these most likely explains why the bacteria population stopped
growing?
A. The bacteria came in contact with a virus that killed off the population.
B. The bacteria could not produce any longer because the population was too large.
C. The bacteria competed for nutrients and died after all of the nutrients were
consumed
D. The bacteria evolved into another organism.
Answer:
C. The bacteria competed for nutrients and died after all of the nutrients were
consumed
Explanation:
Since no other materials were added, this option makes the most sense.
The larvae of potato beetles cover themselves in their own feces to avoid being consumed by predators. What system produces feces?
Answer:
Explanation below
Explanation:
Hemisphaerota cyanea, also known as the palmetto tortoise beetle, is a type of leaf beetle that cover themselves with their own feces, just to persuade most predators to pass them by. This form of outrageous defense, developed by the crafty beetle, was discovered by biologists at the Cornel university.
The feces comes out of the hindgut of the beetle, fashioned like golden strands, which can be used to protect the vulnerable body of the beetle.
A producer is also called a(n)
A. autotroph
B. heterotroph
Answer:
A. autotroph
Explanation:
Hope this helps
