Maarit and her Maya ancestor's civilizations grew potatoes, corn, beans, squash and chilies as part of their routine.
Which plants evolved from America?Different types of plants evolved in America and were selected by native civilizations, which include, among others, potatoes, corn, beans, squash and chilies.
Conventional breeding techniques were used by native civilizations such as Maya civilization in order to produce new crops, including maize, which is an extensive crop plant that shows genetic heterosis (it is an allogamous plant).
In conclusion, Maarit and her Maya ancestor's civilizations grew potatoes, corn, beans, squash and chilies as part of their routine.
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Which gland is known as the "master gland" because it sends chemical messages to many other glands?
Answer: pituitary gland
Which of the following has to
occur in order for mammals to
create offspring?
A. fertilization
B. self-reproduction
C. mutation
D. self-fertilization
HELP ASAP WILL GIVE BRAINLISET Which of the following describes the Cell Theory?
Group of answer choices
(A)All
(B)All living things are composed of one or more cells.
©Cells are the basic unit of life
(D)Cells are produced from existing cells
Answer:
C. Cells are the basic units of life.
Explanation:
What change caused the rate of population growth to increase around point C?
Answer:
point c
Explanation:
Which of the following statements is FALSE?
A. RNA is a single stranded molecule
B. RNA contains uracil
C. RNA is found only in the cytoplasm.
D. RNA contains ribose
Answer:
C
Explanation:
RNA is found mostly in the nucleus but can also be found in the cytoplasm, but it is not limited to it.
please help!! i’ll mark brainliest
Answer:
See if that helps, im pretty sure it increases :)
Explanation:
The rate of photosynthesis does not increase with higher temperatures for all plants. Plants which grow in colder climates have an optimum rate of photosynthesis at low temperatures. Therefore different types of plants have optimum temperatures for photosynthesis.
A student tries to push a refrigerator-sized box of textbooks safely across the classroom.
The box does not move. He asks for help from other students.
The box starts to move when the number of students shown in the image is pushing together.
Based on this information, what conclusion can be drawn?
The box has a mass greater than the combined mass of the first two students pushing.
The forces acting on the box became unbalanced when the third student started pushing.
The only force acting on the box is the push applied by the students.
When the third student started to push, the box’s mass decreased
Answer:
The forces acting on the box became unbalanced when the third student started pushing.
Explanation:
The horizontal forces, friction and applied, were balanced until more force was applied than friction. Mass can't increase or decrease.
Answer:
The forces acting on the box became unbalanced when the third student started pushing.
Explanation:
What sentence best supports the statement that hormones are involved in the regulation of homeostasis?
A.
The hormone cortisol suppresses the immune system and is produced when the body is under stress.
B.
The hormone oxytocin promotes labor contractions of the uterus during childbirth.
C.
The hormone melatonin induces sleep and its production is slowed by exposure to light.
D.
The hormone erythropoeitin increases the production of red blood cells when oxygen levels are low.
Answer:
D
Explanation:
It is an homeostatic process
What is the correct term for organisms that consume other organisms in order to gain energy and are also known as consumers?
A) Heterotrophs
B) Decomposers
C) Detritivores
D) Autotrophs
Answer:
Heterotrophs
Explanation:
A heterotroph is an organism that eats other plants or animals for energy and nutrients.
The correct term for organisms that consume other organisms in order to gain energy and are also known as consumers is Heterotrophs; option A.
What are heterotrophs?Heterotrophs are organisms which cannot produce their own food but rather depend on other organisms for its food.
Heterotrophs consume other organisms such as plants and other animals for the production of energy.
Therefore, the correct term for organisms that consume other organisms in order to gain energy and are also known as consumers is Heterotrophs; option A.
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Material rising from the mantle reaches the surface at spreading centers.
A. True
B. False
Yes, It's true!
Explanation:
Material rising from the mantle reaches the surface at spreading centers.
A. True
B. False
describe how acid precipitation affects ecosystems
will give brain crown thingy
Answer: Acid rain makes such waters more acidic, which results in more aluminum absorption from soil, which is carried into lakes and streams. Trees' leaves and needles are also harmed by acids... They are most clearly seen in aquatic environments, such as streams, lakes, and marshes where it can be harmful to fish and other wildlife.
Explanation: YW <3
match the choices with each box.
Answer:
1 is totipotent
2 is mutipotent
3 is pluripotent
4 is totipotent
5 is pluripotent
6 is mutipotent
Explanation:
I honestly dont know sorry if they r wrong
Which is an example of a ray-fin fish?
lungfish
O coelacanth
O shark
salmon
Explanation:
its showing all but salmon so im not sure,sorry, still trying
Answer: Salmon
Explanation:
bones
Put "Evolution of Populations" in a sentence
Answer:
animals are examples of evolution of population
Explanation:
WILL GIVE BRAINLIEST!!
A magnetic globe is being held down on a base. When released, the globe rises above the base and eventually comes to rest floating above the base.
In which position shown does the globe have the greatest magnetic potential energy?
Answer:
Position 1 as the magnetic potential energy is waiting to be released when the hand moves.
Explanation:
A student knows the width and
length of a dresser. What else
should she measure so she can
calculate the volume?
A. Mass
B. Density
C. Height
Answer:
C. Height
Explanation:
The volume of a rectangle is Length x width x height.
The student has only measured the width and length so far, the only thing left to measure is the height.
The other answers don't make sense.
Hope this helps!!
- Kay :)
Answer:
c
Explanation:
The EPA sets national air-quality standards for common air pollutants. The
data table shows the change in concentrations of these pollutants over time.
Emissions Reductions and Air Quality
Data period
Reduction
Pollutant
Improvement
(from/to)
in emissions (%) in air quality (%)
СО
69
85
Pb
99
98
1980 - 2014 NO,
55
60
0,
53
33
81
80
16
30
2000 - 2014
33
36
SO2
PM,
PM25
Which conclusion do the data support?
The data support the conclusion that reducing emissions leads to improvement in air quality for the common air pollutants monitored by the EPA.
What is EPA?The Environmental Protection Agency (EPA) is a federal agency of the United States government that was established in 1970 to protect human health and the environment. The EPA's mission is to ensure that all Americans have clean air to breathe, clean water to drink, and safe land to live and work on. The agency is responsible for setting and enforcing national standards for air and water quality, as well as for managing toxic waste and other pollutants.
The EPA also works with other federal agencies, states, tribes, and local governments to address environmental challenges, such as climate change, ozone depletion, and exposure to hazardous substances. The EPA uses a range of tools and programs, including research and development, regulation, partnerships, and education and outreach, to achieve its mission. The agency also provides information and technical assistance to help individuals, communities, and businesses protect the environment and public health.
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Answer:
B . With monitoring, the concentration of every pollutant has decreased
Explanation:
the carbon cycle review of terms
Answer:
A solid line would represent point on the graph that actually are included in the solution, while points that lie on dash lines aren't included in the solution.
The carbon cycle takes place in the environment, where plants, herbivores, consumers, and decomposers are present and fix the carbon in the environment.
What is the carbon cycle?The carbon cycle is important for the environment because carbon is present in the animal cell, in food, etc., and the carbon cycle is present in the given diagram. Here, the plant takes in the atmospheric carbon dioxide shown in the arrow 1, and the carbon dioxide is released by the animals and plants shown in the arrow 2.
Arrow 3 explains the rabbit taking the carbon from the food source, the plant releases oxygen and arrow 4 explains the carbon released by the decomposers from the animals and plants; and arrow 5 shows the carbon converted into fossil fuels. Arrows 6 and 7 both explain the release of carbon dioxide while plants use it for food synthesis.
Hence, the carbon cycle takes place in the atmosphere, where plants, herbivores, consumers, and decomposers are present and fix the carbon in the environment.
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Mitosis is done by your body cells. What types of cells do not undergo mitosis
Answer:
Sex cells/ gametes
Explanation:
If you wanted to find an ant's stomach, where would
you look?
a. Inside its head
b. Inside its cephalothorax
c. Inside its thorax
d. Inside its abdomen
Answer:
d. Inside its abdomen
Explanation:
Hope this helps!
Yall Im struggling, if u cant read it, the question is “why does a mountain climber need an oxygen supply at very high altitudes, even tho the air still contains 21% oxygen?
Answer: Because it is harder to draw breath in. And the cold
Explanation: At higher altitudes, it becomes more dangerous, and you can develop altitude-related illnesses such as HAPE and HACE. I read a book called Into Thin Air, and in the book the author goes into detail on the details/complications of climbing Mt.Everest and oxygen needs. Mountain climbers use canisters of oxygen called Supplemental Oxygen.
put "Speciation" in a sentence
Answer:
It flies in the face of currently accepted views of speciation.
Answer:
chromium speciation by different methods of practical use for routine in situ measurement.
Explanation:
Without genetic variation, natural selection would not be possible. Explain why.
Answer:
Without genetic variation, natural selection is only able to grow the number of allelomorphs that previously exited in the population. Natural selection occurs through an interaction between the environment and the variability of the individual organisms making up a population. If every giraffe had the same neck length, there would be nothing to change and they would never have a long neck by now.
1. DNA base sequence: GACGATGTAGCATCGACCATTG.
What would the mRNA sequence for this sequence of DNA be?
Phineas and Ferb build a flying machine. They accelerate into the air in a
straight line, going from 0 m/s to 30 m/s in 3 s. Find their average
acceleration.
10
30 dived by 3 = 10
hope it helps
Put "Allele Frequency" in a sentence
Answer:
With this data we can built a map of allele frequency and geographic location.
Answer: Here are a variety of sentences you could use...
1. Jensen was born with blue eyes because each of his parents gave him a recessive allele for the trait.
2. The dominant allele is the one that determines a physical characteristic or trait.
3. Because Jill’s parents both gave her the dominant allele for curly hair, she has a wavy hair texture.
4. Which allele is responsible for blonde hair, the recessive allele or the dominant allele?
5. On the other hand, the recessive allele is always overshadowed by its dominant partner.
What thing controls the functions of the different cells ? (Hint it is inside the nucleus)
Answer:
DNA
Explanation:
It's the genetic material that writes up who we are.
But if it's discussing an organelle, then it's the nucleus.
Have a great day!
Which of these contributes the most oxygen to our planet?
a. Photosynthetic fungi
b. The Amazon Rain forest
c. the National Forests
d. Phytoplankton
Answer:
D. Phytoplankton
Explanation:
The majority of this production is from oceanic plankton — drifting plants, algae, and some bacteria that can photosynthesize.
Have a wonderful day! <3
Answer:
D
Explanation:
this is because the ocean produces the most oxygen and most of that comes from plankton in the ocean
A rusty nail is an example of an oxidation-reduction reaction.
A. True
B. False
Answer:true
Explanation:
What is the difference between your biological sex and your gender identity?
Answer:
Biological or assigned sex is about biology, anatomy, and chromosomes and Gender is society's set of expectations, standards, and characteristics about how men and women are supposed to act.
Explanation:
Hope this helps!
biological sex is what gender you were born as and what's on your birth certificate. however, a persons gender identity is a persons own choice. it's what you classify yourself as and what you feel comfortable as, despite your biological sex. many people don't even identify as anything or they change their preference of pronouns. gender identity also comes with stereotypes given by the community and what they see fit for genders.