Answers
Answer: ok
Explanation:
Related Questions
which theory states that homo sapiens began in a single geographical area and spread out from there?
a. out of africa theory
b. tectonic theory
c. multi-regional theory
Answers
Answer:
The out of Africa theory states that Homo sapiens began in a single geographical area and spread out from there.
Explanation:
A is correct because the ''out of Africa theory'' suggests that the Homo sapiens began as a species in Africa and from there it gradually spread out on the other continents across the world.
B is not correct because the ''tectonic theory'' is a theory that has nothing to do with the Homo sapiens species, but it is a theory about the movement of tectonic plates.
C is not correct because the multi-regional theory suggests that the Homo sapiens evolved into multiple regions simultaneously, not in one region only.
What can cause
carrying capacity to
change?
Answers
Answer:
Population size decreases above carrying capacity due to a range of factors depending on the species concerned, but can include insufficient space, food supply, or sunlight. The carrying capacity of an environment may vary for different species.
Explanation:
While food and water supply, habitat space, and competition with other species are some of the limiting factors affecting the carrying capacity of a given environment, in human populations, other variables such as sanitation, diseases, and medical care are also at play
when a raw, shell-less egg was placed in sugar solution the egg shrank the egg was brought back to its original size by placing it it water which process does the experiment demonstrate
Answers
Answer:
A: osmosis. The egg first expanded because it was placed in a hypertonic solution (sugar water), causing the water to exit the egg to balance the higher concentration of solute outside of the egg. Placing it in fresh water creates a hypotonic environment, thereby causing water to rush back in.
Explanation:
How many amino acids will 15 codons code for
Answers
Answer:
20 amino acid
Explanation:
15+5 =20 so its 20
calculate the average number of moose killed by one wolf in each territory
Answers
Answer:
where are the territories
Explanation:
Which of the following is correct
Answers
Answer:
D
Explanation:
Answer:
option C.- There is an abundance of lava in volcanoes around the world.
China's economy is growing very quickly and requires a large amount of energy. Most of the energy consumed by the country comes from a nonrenewable energy source. Which of the following is a nonrenewable energy source?
A
coal
B
hydroelectric
C
solar
D
wind
Fun fact ; I made this sentence while brushing my teeth , you can tell with how this sentence is lowercased and multiple typos
Answers
Answer:
A non-renewable source of energy is coal.
Explanation:
The mineral coal is a brown or black rock, of sedimentary origin, that comes from organic matter, so it is considered a fossil fuel.
Currently, coal is used as an energy source, since its combustion produces a great amount of heat. However, the speed with which coal is consumed is faster than its production —which can last millions of years— so it is considered a depletable or non-renewable energy source.
The other options, such as hydroelectric, solar and wind energy are renewable energy sources.
WILL BE MARKED BRAINLIEST AND PLUS 12 POINTS
Which detail from the passage best explain why plants photosynthesize?
Answers
Answer:
B.
Explanation:
I am pretty sure that is the answer
Answer:
A
Explanation:
Guys please help.I don’t have much time
Answers
Each eye has its own objective in the dissecting microscope so that 3D objects can be seen as 3D, whereas the compound microscope has two oculars, but only one objective for both eyes. 3. Compound Microscopes have greater magnifications, but lower resolutions than the Dissecting microscopes.
How many bases does one molecule of tRNA read at one time?
Answers
Answer:Each tRNA has a distinct anticodon triplet sequence that can form 3 complementary base pairs to one or more codons for an amino acid.
Explanation:
Ecosystem services
Define regulating services in your own words
Define providing services in your own words
Answers
Answer:
it is a service that is responsible for enforcing laws relating to environmental health,trading standard,licensing and planning enforcement.
Providing services means to directly or indirectly own,manage,controls or be employed or engaged by,p participate in,etc
4. Jimmy likes to work with his friend Joe in 7th grade science class labs. However, he notices that he tends to get lower grades when he does work with Joe, because he and Joe like to talk about basketball and not science. He's decided to investigate if his science lab grades are higher when he works with Joe or if they're higher when he works with someone else. He has set goals to become a better student, so help him write a hypothesis for his study. a. Manipulated variable b. Responding variable
Answers
Answer:
If Jimmy works better with someone other than Joe, then Joe is a part of the problem of Jimmy getting lower grades.
b responding variable
Explanation:
If, then statements are used for scientific hypothesis's.
In an experiment, there is always a manipulated variable and a responding variable.
In Jimmy's experiment, his aim is to determine whether working with someone other than Joe will lead to an improvement of his grades so he can have a hypothesis that reads thus; "Working with another student other than Joe will lead to improvement of my grades".
In this experiment, the manipulated variable is his study partner while the responding variable is his grades.
Learn more: https://brainly.com/question/967776
HELP
The cells, which can not reproduce in an adult, are the
O smooth muscle
O epithelial
O cardiac muscle
O connective tissue
Answers
Is bacteria a living thing
Answers
Answer:
Yes
Explanation:
"Bacteria (singular: bacterium) are a major group of living organisms. Most are microscopic and unicellular, with a relatively simple cell structure lacking a cell nucleus, and organelles such as mitochondria and chloroplasts.Bacteria are the most abundant of all organisms."
Answer: Yes, bacteria is a living thing
Explanation:
Bacteria that feed off of food in the human gut and provide essential nutrients to their host are an example of
Answers
Answer:
mutualism
Explanation:
They both are beneficial towards one another
you're welcome hope I helped
evaprotion is controlled by what in a plant
Answers
Answer:
Transpiration is the process of water loss from plants through stomata.
Explanation:
In most plants, transpiration is a passive process largely controlled by the humidity of the atmospheric and the moisture content of the soil.
explain what happens to engery through a system
Answers
Answer:
As energy moves through trophic levels in an ecosystem the amount that is available decreases. ... A: Energy flows in a food web by being transferred to and between organisms as they undergo photosynthesis, are consumed by another organism, or decompose.
If you place a red blood cell in a solution and it swells, this means that: (Choose all correct answers)
the solution was hypertonic to the inside of the cell
the concentration of water was lower inside of the cell than outside
the concentration of water was higher inside of the cell than outside
the solution was hypotonic to the inside of the cell
the osmolarity of the solution was lower than inside the cell
the osmolarity of the solution was higher than inside the cell
Answers
Answer:
The solution would be HYPOTONIC. The concentration of water is higher inside the cell
Explanation:
Hypertonic: cell shrink
Isotonic: cell will stay the same
Hypotonic: cell will swell
Is this true or false
The process of change during an organism's life that results in a more complex organism is called growth.
Answers
Answer:
true
Explanation:
Which climate favors mechanical weathering?
O dry climate
O cold climate
O warm climate
O desert climate
Answers
Answer:
cold climate
Explanation:
Cold climates favor mechanical weathering. Chemical reactions occur faster at higher temperatures.
HOPE THIS HELP YOU!! :)))))
What unique property of water allows for some insects to "walk" on water 2 points
and not sink? *
Adhesion
Cohesion
Specific Heat
Surface Tension
Answers
Answer:
Surface Tension
Explanation:
The correct answer is Surface Tension because the structure of there feet in combination with the surface tension of the water allow some insects to walk on water.
To which planet do scientists compare Kepler-10b?
Answers
Answer:
Earth
Explanation:
i hope this helps
Which kind of belly button is considered normal? * 1
innie
outie
Answers
Usually. people consider "innies" normal. since most people have them.
Answer: innie
Explanation:
When making yogurt, bacteria and milk are mixed together and set in a warm area. The container is sealed and no gasses are allowed to enter the container. After 24 hours the container is opened, and there is still no gas. Upon tasting the mixture there is a tart flavor. What type of respiration were the bacteria most likely carrying out?
A.
photosynthesis
B.
alcoholic fermentation
C.
lactic acid fermentation
D.
aerobic cellular respiration
Answers
Answer:
When making yogurt the tart flavor get in the end is more likely because the bacteria have carried out a type of respiration named lactic acid fermentation (option C).
Explanation:
The process of obtaining yogurt from whole milk involves the association of the bacterial species Streptococcus and Lactobacillus. In order to carry out the lactic acid fermentation that produces yogurt, the bacteria act in a different way:
Streptococcus is in charge of removing the oxygen from the milk product.Lactobacillus promotes the conversion of lactose sugar into lactic acid.This fermentation process leads to the conversion of milk into a coagulated and tart flavor product.
Other options are not correct because:
A. Photosynthesis : is the process that occurs in plants to obtain chemical energy from sunlight.
B. Alcoholic fermentation: in this chemical process alcohol is obtained from the fermentation of a sugar.
D. Aerobic cellular respiration: does not involve fermentation, but the series of processes that convert glucose into energy.
Which event is caused by gravity
Answers
Answer:
things falling. Elaborate on your question
Explanation:
Weight is caused by gravity
Factual information can be presented with bias.
Please select the best answer from the choices provided.
true or false
Answers
Answer:
It's TRUEExplanation:
The first answer was wrong
Which of these is NOT a characteristic of life?
ability to reproduce
oxygen usage
an organism consists of cells
use of energy and metabolic processes
Answers
The almost pure cellulose obtained from the seed threads of Gossypium (cotton) is tough, fibrous, and completely insoluble in water. In contrast, glycogen obtained from muscle or liver disperses readily in hot water to make a turbid solution. Despite their markedly different physical properties, both substances are (14)-linked D-glucose polymers of comparable molecular weight. What structural features of these two polysaccharides underlie their different physical properties
Answers
Answer:
Cellulose is held by beta 1,4-glycosidic bonds making it linear while Glycogen is held by an alpha 1,4-glycosidic bond making it highly branched.
Explanation:
Cellulose and Glycogen are both carbohydrate polysaccharides formed from glucose monomers. According to the question, cellulose is a tough, fibrous, and insoluble (in water) polymer found to play a structural role in plants' cell wall while Glycogen is another polymer obtained from muscle or liver and disperses readily in hot water to make a turbid solution.
Although these two polysaccharides (cellulose and glycogen) are linked by (1, 4)-glycosidic bonds but the glucose monomers in CELLULOSE are linked by a beta 1,4-glycosidic, hence, making it a straight or linear polymer
GLYCOGEN, on the other hand, is linked by an alpha 1,4-glycosidic bond making it an highly branched polymer. This structure is responsible for the different physical properties of the two molecules.
What side do the vesicles enter in the Golgi apparatus?
A)the skinny side
B)the fat side
C)cis face
D)trans face
Answers
Answer: unusually large vesicles are found on the trans side of the Golgi apparatus, which faces the plasma membrane domain where secretion occurs.
Explanation:
Some steps in cell division are shown below:
1. Haploid chromosomes condense
2. Number of chromosomes are reduced to half
3. Chromosomes move to the equatorial plane between the poles
4. Centromeres separate and the sister chromatids are pulled apart to opposite poles by the spindle
Which of the following steps is most likely to occur during meiosis 2 only?
Step 1
Step 2
Step 3
Step 4
Answers
Answer:
Step 2
Explanation: