Answer:
Some examples of biomass fuels are wood, crops, manure, and some garbage. When burned, the chemical energy in biomass is released as heat.
Explanation:
Many paleontologists hypothesize that present-day whales evolved from ancient ancestors that had four legs and walked on land. Evidence for that
hypothesis would be a sequence of whale-like fossils
A. in which the oldest fossils had flipperlike appendages and the most recent fossil had four limbs.
B. in which the oldest fossil had four limbs and the most recent fossil had flipperlike appendages.
C. that indicate that the ancestors of present-day whales were wiped out during a mass extinction.
D. that indicate that whales evolved before animals with four legs.
Answer:
B
Explanation:
If the oldest fossils showed legs and the more recent ones had only flippers, it would show the change over time.
help:/
Part 1: Comprehension Questions
1. What are two things mentioned in the reading that can happen that might affect an ecosystem?
2. Define ecological succession.
3. What is primary succession?
4. Describe an example of primary succession.
5. What is a pioneer species?
6. How long might it take for an ecosystem to become balanced?
7. What happens when an ecosystem is in equilibrium?
8. Define climax community.
9. Name two things that can disrupt a community.
10. What is secondary succession?
Answer: 1. One community replacing another as a result of changing abiotic and biotic factors. Establishment of a community in an area of bare rock that does not have topsoil. Lava flow destroys an ecosystem and hardens into bare rock. 2. Ecological succession is the process that describes how the structure of a biological community (that is, an interacting group of various species in a desert, forest, grassland, marine environment, and so on) changes over time. 3.Primary succession, type of ecological succession (the evolution of a biological community's ecological structure) in which plants and animals first colonize a barren, lifeless habitat. 4. Primary succession occurs when new land is formed or bare rock is exposed, providing a habitat that can be colonized for the first time. For example, primary succession may take place following the eruption of volcanoes, such as those on the Big Island of Hawaii. As lava flows into the ocean, new rock is formed. 5. Pioneer species are hardy species which are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been disrupted, such as by fire. Some lichens grow on rocks without soil, so may be among the first of life forms, and break down the rocks into soil for plants. 6. THIRTY TO ONE HUNDRED YEARS . 7. Ecological balance has been defined by various online dictionaries as "a state of dynamic equilibrium within a community of organisms in which genetic, species and ecosystem diversity remain relatively stable, subject to gradual changes through natural succession." and "A stable balance in the numbers of each species . A healthy ecosystem is said to be in equilibrium, which is a relatively stable state that keeps population sizes within a sustainable range (not too many of a certain species alive or dead). ... Some bears will starve and fewer cubs will be able to prosper, leading to a smaller overall population the next year. 8.A climax community is the last stage in succession, a stage where an ecosystem reaches a stable state. It is a mature ecosystem. ... Climax communities are stable. 9. Disturbances such as fire or flood can disrupt a community. After a disturbance, new species of plants and animals might occupy the habitat. Over time, the species belonging to the climax community are likely to return. 10. Secondary succession, type of ecological succession (the evolution of a biological community's ecological structure) in which plants and animals recolonize a habitat after a major disturbance—such as a devastating flood, wildfire, landslide, lava flow, or human activity (e.g., farming or road or building construction)— ... brainliest? plzz
Explanation:
Which one the following is the most stable?
Answer:
plz tell which is your following
Determine whether each statement correctly describes the myocardial action potential and the pacemaker potential. 1. Because the pacemaker potential occurs during systole, it can also be called systolic potential. (Click to select) 2. The pacemaker potential is the relatively slow, spontaneous depolarization in the SA node. (Click to select) 3. Myocardial cells produce their own action potentials after being stimulated by action potentials originating in the SA node. (Click to select) 4. Myocardial action potentials are characterized by a spike and then slow depolarization. (Click to select)
Answer:
1. False
2. True
3. True
4. False
Explanation:
In mammals, the contraction of the heart muscle is caused by pacemaker cells localized within the sinoatrial (SA) node. These cells rhythmically generate slow electrically-induced action potentials due to their slow rate of depolarization. The pacemaker cells generate the action potentials that propagate through the heart and trigger the contraction of myocyte cells (i.e., myocytes simply conduct the action potential waves). The slow depolarization of pacemaker cells occurs during diastole, i.e., during the period of relaxation of the heart muscle.
Help with this pls I'm very counfused and it's due in 1 hours. 
Answer:
Flagellum
Locomotion
Explanation:
I found it on Quiziz(z)
Why do scientist want to locate the epicenter of an earthquake?
Answer:
So that the fault that ruptured causing the earthquake can be identified.
why is there only one winter and summer a year
Y’all plz help I fell asleep and don’t remember
Answer:
A.
Explanation:
A mutation is least likely to affect a cell when the mutation reverses the order of bases in a DNA strand.
The worm population will . . .
Answer:
Die in a few years
Explanation:
What? I’m being realistic!
take over the earth in a few days
GIVING BRAINLIEST!!!!!!!!!!
How does the stomach function??
Answer:
The stomach has 3 main functions: temporary storage for food, which passes from the esophagus to the stomach where it is held for 2 hours or longer. mixing and breakdown of food by contraction and relaxation of the muscle layers in the stomach. digestion of food.Explanation:
you could have just looked it up
What front is being forecast for this state?
For the places that are at high risk of earthquakes or tsunamis, how might builders minimize the risk for the people who live there?
what is another term for regular reflection
Answer:
Specular reflection, or regular reflection, is the mirror-like reflection of waves, such as light, from a surface
Answer:
Explanation:
Specular reflection, or regular reflection, is the mirror-like reflection of waves, such as light, from a surface.
The law of reflection states that a reflected ray of light emerges from the reflecting surface at the same angle to the surface normal as the incident ray, but on the opposing side of the surface normal in the plane formed by the incident and reflected rays. This behavior was first described by Hero of Alexandria (AD c. 10–70).
Specular reflection may be contrasted with diffuse reflection, in which light is scattered away from the surface in a range of directions.
HELPPPP!!!
G:Green
B:Blue
-what percent of the offspring will have green skin???-
Answer:
75%
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plzzzz ;)
Explanation:
Why might you always need to have some glucose in the blood?
Answer:
Blood glucose is a sugar that the bloodstream carries to all cells in the body to supply energy. A person needs to keep blood sugar levels within a safe range to reduce the risk of diabetes and heart disease.
Hope this helps :)
Answer:
you need a lot of starch
Explanation:
for your glucode
How many offsprings are formed from asexual reprodcution?
Answer:
They produce offsprings that are related to the parent, genetically identical to the parent.
Explanation:
Hope it helps :)
How might the effectiveness of nectar change if it had a bitter taste?
Answer:
Floral nectar is offered by plants to animals as a reward for pollination. While nectar is typically a clear liquid containing sugar and trace amounts of amino acids, colored nectar has evolved in several plant families. Here we explore the functional significance of the phenolic compounds that impart a dark brown color to the nectar of the South African succulent shrub Aloe vryheidensis. Flowers of this aloe are visited.
Explanation:
Hope this helps
MY MOM GONNA WOOP ME I NEED RIGHT ANSWER
Hello, imjustAKID23.
The answer here should be “high diversity”. High diversity allows an ecosystem to be more flexible - thus allowing it to work better in the face of stress.
Does that answer your question?
Non-potable water may contain __________.
A)
disease vectors
B)
pathogens
C)
high levels of chemicals
D)
high levels of suspended solids
E)
all of the above
Answer:
E all of the above.
Explanation:
All of these things are true of non-potable water.
Which adaptation would most likely help a plant collect more energy for photosynthesis? A. Broad leaves B. Short stems C. Deep roots D. Large flowers SCIENCE
Holes also allow more sunlight to get through to the leaves below, which maximizes sun absorption and photosynthesis. Adaptation: During the heat of the day's sunlight, most plants open stomata (pores) in their leaves to take in carbon dioxide from the air for photosynthesis, while allowing some water to escape.
hope that helps.
Whodunnit?
Six contestants on a reality TV show were stunned to find their lowest scoring colleague was "injured." They
must figure out the crime before the bell rings. The question is Whodunnit? And how... The Player, Last
Known Whereabouts and Method that are left unaccounted for -- is the solution.
Answer: No, it's not a scam file. Got it in my science class
Explanation:
Ollie runs 40 meters in 5 seconds. How far could she run in 60 seconds?
Answer:
60 seconds would be 480 meters
Explanation:
we can find the answer by using the method of distribution, but first take the 60 seconds and divide by 5 seconds and we'll get 12 then multiply that by 40 meters to get 480 meters and since we divided 60 seconds by 5 the was how we figured out what to multiply the 40 meters to.
Healthy rain forest ecosystems provide ecosystem services, such as clean air, shade, food, and water. How might an increase in palm oil plantations affect humans who live nearby?
Answer:
Negatively affected.
Explanation:
Increase in palm oil plantations negatively affected humans who live in nearby area because this palm oil plantations is the cause of deforestation. Due to this palm oil plantations, deforestation occurs that leads to loss of habitat of many species as well as decrease in the area of forest which provides us clean air, shade, food, and water. The decrease in forest area also causes natural disaster such as floods in the region. Forests play a significant role in the prevention of floods in the region.
How can an offspring have a trait that neither parent
has?
Answer: How might it be possible for you to show a trait when neither of your parents show the same trait. It can be carried to you when the chromosomes combine even if the parents don't possess the same trait It can skip and be dominant for you so you would be able to see it in your genetic make up.
Explanation:
I need help with this. Ty
Answer:
1. They can not make their food during photosynsheis because they have no chlorophyll.
2, Fungican be beneficial because it helps us produce some of our favorite foods. (ex:yeast for pizza) Fungi can also help to control infections with antibiotics.
3.There are some variaties of fungi that can be harmful and even can give us skin reactions.
4. Fungi can adapt to any weather but if the tempature is too cold, they will go into a deep sleep.
5.Life would be impacted because without fungi, it would be harder to find rich soil to grow crops.
Explanation:
Hormones are proteins uses as
-chemical receptors
-chemical messengers
-sugar
Answer:
chemical receptors please your answer
What’s the answer????
Which word best describes the energy of the boiling water
Answer:
Thermal energy
Explanation:
How do electric charges behave?
Describe why the discovery of deep sea thermal vents helps support the abiogenesis theory.