Answer: The genus Homo had three species, H. habilis, H. rudolfensis, and H. erectus, and the genus first arose about 2.5 million years ago
Explanation:
describe the effects of lifestyle on the respiratory and circulatory systems
Answer:
Explanation:
Eating healthy foods, getting enough sleep, and being active every day can help keep your respiratory system, cardiovascular system and immune system strong. Getting enough exercise makes your lungs stronger and better at giving your body the oxygen it needs.
Which of the following is a nonrenewable resource?
A. Solar
O B. Biomass
O C. Petroleum
D. Hydropower
Answer:
C.
Explanation:
Comparing the skeletons of which of the following fish would
best show the evolution of a fish species?
a male fish and a female fish that could produce offspring
the same fish just before it received a cut and after it healed
a fish that lived recently and a fish that lived a long time ago
the same fish just after it hatched and when it was full-grown
Answer:
C. a fish that lived recently and a fish that lived a long time ago
Good luck with it :)
need help with this
Explain in detail the life cycle of the metamorphosis of amphibians.
Amphibians, like frogs and newts, have a slightly more complicated life cycle. They undergo a metamorphosis (a big change): they are born (either alive from their mother or hatched from eggs)
Why did Gregor Mendel use peas in his experimentsGregor Mendel’s research formed the basis of the field of
Answer:
Peas have characteristics that have two forms. Scientists often use fruit flies as a method to test hypotheses about human genes.
Explanation:
What are the sources of coastal pollution?
Answer:
Point sources include combined sewer overflows, concentrated animal feeding operations, sanitary sewer overflows, storm water, oil spills, industrial discharges; discharge from boats, and dumping of ballast water from ships.
Explanation:
i need some help plz
Answer:
C. A sperm fused w/ an egg
Explanation:
This is the definition of a zygote.
A. is a blastula.
B. is simply a gamete found in females.
C. is the answer.
D. is the placenta.
According to the theory of natural selection, why are some
individuals more likely than others to survive and reproduce?
A
Some individuals pass on to their offspring new
characteristics they have acquired during their lifetimes.
B
Some individuals are better adapted to exist in their
environment than others are.
с
Some individuals do not pass on to their offspring new
characteristics they have acquired during their lifetimes.
Some individuals tend to produce fewer offspring than others
in the same environment.
Answer:
B. some individuals are better adapted to exist in their enviornment than others are
Explanation:
HELP PLS!!!!!!!!!!!!
A good environmental decision _____.
has no ecological costs
discounts the environmental costs
should have more benefits than costs
has only environmental benefits
ILL GIVE 40 POINTS TO WHOME OVER IS RIGHT
HELPPPPPPPPPPPPPP MEEEEEEEEEEEEEEEEEEEEEEE
The deep ocean gets carbon from?-
Answer:
Explanation:
Carbon dioxide from the atmosphere dissolves in the surface waters of the ocean. ... Photosynthesis by tiny marine plants (phytoplankton) in the sunlit surface waters turns the carbon into organic matter. Many organisms use carbon to make calcium carbonate, a building material of shells and skeletons
Answer:
Carbon from the atmosphere enters the ocean depths in areas of deep water formation in the North Atlantic and offshore of the Antarctic Peninsula. Where deep currents rise towards the surface, they can release “fossil” carbon dioxide stored centuries ago.
Explanation:
Which feature separates watersheds?
A.) basins
B.)bays
C.)ridges
D. )rivers
Answer:
c
Explanation:
C.) Ridges are the feature that separates watersheds.
What is watershed ?A watershed is a region or area of land that collects and drains water into a particular river, stream, or other body of water.
Ridges or high points of land are critical in separating watersheds because they provide the boundary or border between two adjacent watersheds. When rain falls or snow melts, the water will flow downhill towards the closest body of water.
However, if that body of water is separated from another by a ridge, the water will flow down opposite sides of the ridge, into different watersheds.
Ridges are created by geologic processes such as tectonic uplift or erosion, and can vary in size and height. In some cases, a single ridge can divide a large drainage basin into two or more smaller ones, each with its own unique set of characteristics and ecosystems.
The boundary or border of a watershed is formed by a ridge or high point of land that separates one watershed from another. Water that falls on one side of the ridge flows into one watershed, while water that falls on the other side of the ridge flows into a different watershed.
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Which of the following statements are not true of carbohydrates?
A. Triglycerides are the most common type.
B. Monosacharrides, disacharrides, and polysacharrides are the most common types.
C. They are the most readily available source of energy for organisms.
D. Certain carbohydrates are enzymes or catalysts.
Answer:
this is very helpful to you
Explanation:
thank you
Joey eats strawberries for lunch. Explain how homeostasis is maintained in the endocrine systems once the fruit has entered Joey’s body.
Answer:
Explanations:
Homeostasis can be defined as the phenomenon whereby there is balance or stability within the internal and external environment of a cell or the body. The internal environment of the organism is kept constant during homeostasis. During this process there is adjustments in the
internal environment Because there is always change in the conditions inside and outside the cell. When the system of the body is able to adjust itself it's reffered to as homeostatic regulation.
The endocrine system which contains glands that is responsible for the secretion of hormones into the bloodstream play also vital part during Homeostasis, This is because hormones which are the chemical messaged effect some change cells in another part of the body. The endocrine system is responsible for the regulations of
metabolism as well as the development of some body cells and systems via feedback mechanisms, hormones such as
Thyrotropin-Releasing Hormone during Homeostasis. Therefore as Joey eats strawberries for lunch the hormones makes adjustment of muscle metabolism and also regulate fluid and ion concentration in the system or body
HELP ASAP!!!!
Describe a habitat in ur community that would support non vascular plant!!!!
Moist soils, Damp walls and mud regions where the water is not in limiting conditions are best suited for the growth of non vascular plants as they can not absorb and transport water to taller aerial organs.
would really appreciate a brainliest! Hope this helped! =)
It is most commonly believed that India or China has the highest population density in the
world, however this is not true, what country holds that honor?
Answer:
Monaco
Explanation:
Hope this helped :)
Carbon is stored in
A.Trees and other living things
B.Oceans
C.Underground in soil and fossil fuels
D.All are correct
Answer:
all are correct
Explanation:
Carbon is also found in the atmosphere where it's a part of carbon dioxide gas emitted when fossil fuels are burned and when living organisms breathe. It's in organic matter in the soil, and it's in rocks. But far and away the most carbon on Earth is stored in a surprising place: the ocean.
Some laboratory mice are spotted, due to a dominant gene. Solid color is recessive. A solid color female mouse is mated to a spotted male. Both parents are homozygous. What percentage of mice should be found in the litter?
Answer: percentage of mice that will be spotted is 100%, and 0% chance of being solid colored.
Explanation: First, homozygous means each parent have matching chromosomes (Like XX, instead of Xx)
Lets make a punnet square and show the data. We will use 'S' for spotted and 's' for solid
The punnet square shows that the percentage of mice that will be spotted is 100%, and 0% chance of being solid colored.
Hope this helps :)
The percentage of mice that will be spot-ted is 100%, and 0% chance of being solid colored.
Calculation of the percentage:In the first time, h-o-m-o-z-y-g-o-u-s means each & every parent should have matching chromosomes (Like X-X, instead of X-x)
So based on this, we can say that The percentage of mice that will be spot-ted is 100%, and 0% chance of being solid colored.
in this way, the percentage is determined.
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Which of the following groups of parrots is most likely in Hardy-Weinberg equilibrium?
A. A group with 50 DD parrots, 30 Dd parrots, and 20 dd parrots.
B. A group with 30 DD parrots, 40 Dd parrots, and 30 dd parrots.
C. A group with 25 DD parrots, 50 Dd parrots, and 25 dd parrots.
D. A group with 50 DD parrots, 25 Dd parrots, and 25 dd parrots.
Answer:
B. A group with 30 DD parrots, 40 Dd parrots, and 30 dd parrots.
A group with 30 DD parrots, 40 Dd parrots, and 30 dd parrots is most likely in Hardy-Weinberg equilibrium.
What do you mean by Hardy-Weinberg equilibrium?The Hardy–Weinberg principle, also known as the Hardy–Weinberg equilibrium, model, theorem, or law, states that allele and genotype frequencies in a population will remain constant from generation to generation.
The Hardy-Weinberg equilibrium is a principle stating that the genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.
For populations in the Hardy-Weinberg equilibrium, the equation connects allele frequencies to genotype frequencies. This equation allows us to compare a population's genetic structure in reality over time to the expected genetic structure.
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This was simulation. What are some variables that this peppered moths simulation does not address?
Answer:
The simulation only shows how a population can change overtime in response to the changes in the environment. During the industrial revolution, one particular phenotype of moths had an advantage over the other and hence, was subjected to natural selection. What this simulation does not tell us is the causality and correlation aspect of the change that occurs in the moths. Correlation does not equal causation, and the simulation does not shed any light on these variables in this case.
Explanation:
Hope that answers the question, have a great day!
1. What do you call metamorphic rock formed from igneous rock?
2. What do you call metamorphic rock formed from sedimentary rock?
Explanation:
1.gneiss metamorphic rock formed igeous rock
2.called met
Question 6 (1 point) ✓ Saved
Having 1 leader CAN help to get through a task and reduce arguing
True
False
What is the physiological explanation for the negative effects of prolonged stress on health? Talk about stress hormones.
2. If your child believes in Santa Claus and you never tell them that he isn't real, why would they figure it out for themselves as they get older?
3. According to Piaget's theory of cognitive development what is "primary circular reaction?" Provide an example.
4. "My computer stopped working because it doesn't like me." "The sidewalk made me trip and scratch my knee." These statements illustrate how a young child thinks. According to the theory of cognitive development what is this an example of and why?
5. What are some reasons that a very bright child might not do well on an intelligence test (an IQ test)?
6. Explain the term "learning disability" in your own words.
7. The teacher refers a child to the psychologist because she continues to fail in all subjects. Before you begin to suspect a disability, what are the other factors that may affect the child's school performance?
8. Least restrictive environment, mainstreaming, inclusion: in special education what do these terms refer to? What are the advantages of mainstreaming a classified child?
9. Explain the difference between "functional death" and "brain death." How do these terms affect the decision to discontinue life support treatment?
10. What are some arguments against euthanasia?
Answer:
1. Hormones can be activated by stressful conditions.
2. Because this belief is associated with the innocence (lack of cognitive experience).
3. Babies start to associate movements and they acquire the ability to repeat these actions.
4. Because they have to develop the ability to deal with complex problems.
5. Due to the lack of suitable stimulation.
6. Learning disability is a disorder that affects the capacity to learn.
7. It is likely that she needs a more suitable stimulation to learn.
8. These terms represent an ideal environment that provides support to develop skills and abilities.
9. "functional death" refers to the death of the central nervous system, while "brain death" refers to the loss of cerebral functions.
10. Religious beliefs.
If your phenotype is free earlobes and free earlobes is dominant what is your genotype
Answer:
ff
Explanation:
hope this help
which substance is a reactant in photosynthesis
Answer:
carbon dioxide and water
Explanation:
Carbon dioxide and water are reactants to photosynthesis.
Which best explains why earthquakes sometimes occur in the same locations as mid-ocean ridges and rift valleys
Answer:
The reason why earthquakes sometimes occur in the same locations as mid-ocean ridges and rift valleys securely is:
Active tectonic plate edges are found at these locations.Explanation:
Earthquakes are caused by the release of energy that occurs regularly at the edges of tectonic plates, which with their movement allow the release of said energy, which later translates into an earthquake. In simpler words, imagine that tectonic plates are pieces of a domino together next to each other trying not to leave space, each union between one piece and another is a possible focus of energy release if these pieces move, and if that happened, whatever was on them would feel an earthquake or tremor.
There are places that are much more prone to earthquakes than others, for example, San Andreas Fault, which is heard a lot by the great earthquake it could cause in California.
Answer:
Faults form because crust gets cracked when plates move apart along divergent plate boundaries.
Explanation:
Just took the quiz and got it right. Believe me on this.
Pronghorn antelopes are hoofed animals that eat grasses and live in large herds in the prairie
biome. In which one of these other biomes would an animal with similar adaptations live: taiga,
desert, savanna, or deciduous forest? Explain your answer.
Most likely a savanna because there is a lot of space to roam around and plenty of grass to eat.
A species is endangered if it_____
no longer exists anywhere on earth
is in danger of becoming extinct
is not native the environment
has high genetic diversity
Answer:
is in danger of becoming extinct
If the food source is affecting the buffalo population, what do you predict the graph of the food source would look like? Either draw a graph or write a prediction.
Answer:
I think the number of buffalo should reduced,for the grass to grow better and act as the food for buffalo
If the food source is affecting the buffalo population, the number of buffaloes in the area should decline.
What do you mean by Population?A population may be defined as the number of individuals of the same species in a particular area at a given time.
Anything that affects the population of any species, it definitely reduces the number of specific species in a particular area. Then the affecting resource has the chance to spread in a much better way.
Therefore, if the food source is affecting the buffalo population, the number of buffaloes in the area should decline.
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how is mRNA processed
Answer:
Eukaryotic mRNA precursors are processed by 5′ capping, 3′ cleavage and polyadenylation, and RNA splicing to remove introns before being transported to the cytoplasm
Explanation:
