Why would the presence of oxygen bubbles be a good indicator of photosynthesis occurring?
Answer:
When plants photosynthesize, they produce oxygen.
Which cell can survive without the help of other cells?
leaf cell
yeast cell
onion cell
muscle cell
Answer:
given below:
Explanation:
Q. A single cell organism can do everything a cell from a multi-cellular organism can do EXCEPT
answer choices
specialize
reproduce
use energy
make protein
Complete the following sentence.
A farmer’s profit is determined by the amount by which the sale value of the ___ ___ exceeds the cost of production and distribution.
Answer:
profits farmers
Explanation:
Answer:
Crop yield
Explanation:
Refer to the graphs below. Determine the type of forest these moths inhabit. Use evidence from the Peppered Moth simulation and the graphs as well as scientific reasoning to support your response. l
Answer:good right
Explanation:
16. Explain how the following affect the rate of enzyme activity. a.Substrate Concentration:
b. pH:
c. Temperature:
Answer:
pH: If it's to much on either the alkaine or the acid side the enzymes will vary
Explanation:
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What would most likely happen if coastal North Carolina increased implementation of wind energy?
A. Investment costs to taxpayers would decrease.
B. The population of greenhouse gases would decrease.
C. Turbines could be built in highly populated areas because of low noise pollution.
D. The energy output would be consistent because wind patterns are always predictable.
Answer:
The answer would be A because it would decrease
Answer:
A. Investment costs to taxpayers would decrease.
What is the fate of the sunlight during photosynthesis?
A. It is released as a product
B. It lowers the activation energy
C. It is converted to chemical energy
D. It is an unnecessary reactant
Answer:
C. It is converted to chemical energy is your answer
c ) itz ans.....................,.........
How many chromosomes does a human body cell contain?
Answer:
A human body contains 46 chromosomes in pairs of 2
Explanation:
A human body contains 46 chromosomes in pairs of 2
Explanation:
Which population will likely decrease in size in the near future?
Question
If a population's growth rate decreases as the population size approaches
carrying capacity, the population's growth follows a(n) ______ model.
exponential growth
density-dependent growth
geometric growth
logistic growth
2 of 20
Determine the density of a rabbit population, you would need to know the population count of the rabbits and ________.
the density-dependent limiting factors for that population.
their carrying capacity.
population distribution pattern.
the size of the habitat that the population lives in.
3 of 20
What has helped human populations to increase their carrying capacity in their environments?
agriculture
the ability to build shelters
improved food distribution systems
all of the above
4 of 20
Lichens are one of the first pioneer species on a newly formed volcanic island in the Pacific Ocean. This is an example of ________.
competitive exclusion.
a keystone species.
primary succession.
an endemic species.
5 of 20
May develop in response to predation?
Mimicry.
Cryptic coloration.
Warning coloration.
All of the above.
6 of 20
A(n) _______tends to have a greater impact on community structure than their abundance in the community might suggest.
invasive species
keystone species
endemic species
exotic species
7 of 20
Opportunistic species typically_________.
are large bodied.
follow a type II survivorship curve.
experience little intraspecific competition for resources.
reach sexual maturity slowly.
8 of 20
The best example of secondary succession?
A retreating glacier leaves behind bare rock, which is then colonized by lichens.
A lake steadily becomes shallower and more nutrient-rich over time.
A 100-year flood recently occurred.
After plowing a field, the farmer decided to rest the field for the next season. Over the next few weeks, native grasses and wild flowers began growing in the field. Within a couple of months, small shrubs became established.
9 of 20
Competition among individuals of different species is _______ competition.
extraspecific
intraspecific
interspecific
exospecific
10 of 20
On average, the ecological footprint of an American will be ________the ecological footprint of someone from a developing nation.
larger than
smaller than
about the same as
not comparable to
11 of 20
Is the intentional release of a natural enemy to attack a pest population?
Biological control
Coevolution
Sustainable resource management
Integrated pest management
12 of 20
A species whose members produce only a few offspring and exhibits a high level of parental care _______.
is opportunistic.
will follow a type I survivorship curve.
will be uniformly distributed.
will follow a type III survivorship curve.
13 of 20
In the presence of limiting factors, what shape does a population's growth curve most closely resemble?
S
J
U
∩
14 of 20
Mutualism has ________on one organism, and ________on the other organism.
a positive impact; no impact
a positive impact; negative impact
a negative impact; negative impact
a positive impact; positive impact
15 of 20
Most likely to have density-dependent effects on population growth?
temperature
breeding site availability
fires
floods
16 of 20
Developing nations tend to have higher ______than more highly developed nations.
ecological footprints
life expectancies
ecological services
fertility rates
17 of 20
Level of ecology studies interactions between populations of different species?
Community
Organismal
Population
Ecosystem
18 of 20
A broad-based, pyramid-shaped age structure diagram for a human nation indicates that nation should consider ________.
planning additional retirement services for an aging population.
investing more significantly in childcare and youth education.
importing additional young workers to continue to generate adequate tax revenues.
encouraging people to have more children.
19 of 20
Random plot sampling is used to estimate ______, and the estimate will be the most accurate when the population is _______distributed.
population size; randomly
population density; randomly
population size; uniformly
population density; uniformly
20 of 20
Might be studied by an ecosystem ecologist?
competitive exclusion between two species of fruit flies
how the intensity of light impacts the distribution of algae in a stream
the use of mark-recapture to estimate the number of elk in the Kaibab National Forest of Arizona.
predator-prey interactions between the lynx and snow shoes hares
Answer:
It looks like Italy could be the closest
Explanation:
omg is that GOOOOOOOOOOOON lol sorry-
Especially considering it would have to be based off the how many children are alive because theyll be the future. And Italy is thinner than the U.S and Kenya.
Or I could be reading this incorrectly-
Which of the following is true of all protists?
O
A. They are all unicellular.
O
B. They are all capable of photosynthesis.
C. They are all eukaryotes.
0 D. They are all primitive plants or animals.
Answer:
Kingdom Protista was first described by Antony van Leeuwenhoek in 1675. The kingdom includes the majority of unicellular and eukaryotic organisms.
Explanation:
Protists are eukaryotic organisms such that they consist of a well-defined nucleus, membrane-bound cell organelles, and are mostly unicellular. However, some of the protists such as algae perform photosynthesis, some protists exhibit mutualism, and some are parasitic.
Most of the protists are single cells, but they can exist in multicellular forms, in colonies, and can live as single-cell. Some of the examples include giant kelps, euglena, and diatoms.
Protists such as alga are capable of performing photosynthesis. Photosynthesis is the process of preparing food in the presence of sunlight, water, and carbon dioxide to yield oxygen and provide energy.
Protists are one of the diverse kingdoms in the classification of organisms as it comprises moulds, algae, and protozoa. Protists are not classified as plants, fungi, or animals. For example, the division Bryophyte is considered as a primitive division to plants, whereas kingdom Moneran is considered as most primitive.
Sound travels through substances as energy is transferred from one particle to the next. The
diagrams represent the particles of three substances: air (gas), water (liquid), and steel (solid).
Which substance would sound travel through the fastest?
Answer:
The correct answer is A...........
If stripped fish become more visible to predators, their fitness for their environment will decrease. Over time ____ will favor solid-colored fish and their numbers will grow.
Answer:
predators
Explanation:
Which is not a function of the respiratory system? A. It warms air entering the body. B. It exchanges oxygen and carbon dioxide. C. It pumps blood to the organs.
Answer:
A. It warms air entering the body.
Explanation:
The respiratory system functions the organs and breathing. B tells you that it exchanges oxygen and carbon dioxide, which is functioning breathing. C is pumping blood into the organs, which is part of the respiratory system.
Hope this helped! :3
Which of these describes a temperate rainforest?
cooler; long, wet season; short, dry season
hot; varying to warm in the winter
O warm; no seasons present
O temperatures vary from season to season; daily precipitation
Answer:
a long and wet winter but and short and drier summer. option one i think
Explanation:
Temperate rainforests are characterized by cooler; long wet season and short dry season.
The features of temperate rainforests:One of the world's major habitats is the temperate forest biome. These forests are characterized by humidity and high levels of precipitation. The temperate rainforests exhibit a broad array of temperatures, which correlate with the different seasons.
Temperature ranges from extremely cold in the winter and hot in the summer. The forests receive enough amounts of precipitation, generally between 20 to 60 inches of rainfall in a year. The temperate rainforests have a short dry season, while cooler and long wet seasons.
Thus, the correct statement is the first one, that is, cooler and long wet season and short dry season.
Find out more information about temperate rainforests here:
https://brainly.com/question/2786076
Hanan ate a meal that consisted of rice, dal, fish and fried potatoes. Explain the process of digestion of the food with reference to the parts and enzymes involved in the digestive system.
Answer: A digestive system can be defined as a system which is made up of the alimentary canal and the associated glands and organs which produce some of the enzyme- rich secretions that bring about digestion. The process of digestion of food Hanan are, is discussed below.
Explanation:
The food taken by Hanan consist of carbohydrates (rice, potatoes ), protein( fish, dal) , fats and oil( fish, fried potatoes). The digestion of the food taken passess through a long tube ( alimentary canal) which stretches from the mouth through oesophagus to stomach, intestines and down to the anus.
In the MOUTH, the following occurs:
--> The food is cut and grinded into smaller pieces by the help of the teeth.
--> the enzyme ptyalin acts on the carbohydrate part of the food converting it to complex sugar.
--> the food is mixed with saliva, with the help of the tongue, is rolled into a bolus which is then swallowed.
At the STOMACH, food enters through the peristaltic movements of the oesophagus, The following occurs:
--> The muscular walls of the stomach contract and relax forcefully, thus churning the food.
--> Gastric juice( consists of pepsin, renin and dilute hydrochloric acid). Dilute hydrochloric acid activates pepsinogen to pepsin which digests proteins to polypeptides.
--> Food remains in the stomach for three to four hours. By this time, it is a thick, creamy fluid called chyme which them moves to the duodenum (small intestine).
At the SMALL INTESTINE, digestion occurs at the first part called the duodenum, and later part called the ILEUM.
--> Several substances are secreted into the duodenum from the pancreas( pancreatic juice) and liver( bile), the accessory organs of digestion.
--> pancreatic juice contains three important enzymes whose activities include:
• Amylopsin: Breaks down complex sugar to maltose
• Trypsin: breaks down protein into peptides
• Lipase: Breaks down fat into carboxylic acids and glycerol (end product of digestion of fat).
--> Bile from the liver, adds water to the chyme, emulsifies fat and neutralise the action of dilute hydrochloric.
At the ILEUM, intestinal juice is produced by special cells of the small intestine. Their actions include:
• maltase: this acts on maltose converting it to glucose( which is the end product of carbohydrate digestion).
• erepsin: This acts on peptides converting it to amino acids( which is the end product of protein digestion).
Absorption takes place at the small intestine.
What is MITOSIS really good at?
Mitosis is the reason we can grow, heal wounds, and replace damaged cells. Mitosis is also important in organisms that reproduce asexually: this is the only way that these cells can reproduce. This is the one key process that sustains populations of asexual organisms.
Explanation:This is what I found during my research and I hope this helped somehow. Have a good one!
（っ＾▿＾）Human beings are: more genetically similar than any other species. genetically diverse compared to other species. members of various species, depending on nationality.
Answer:
more genetically similar than any other species.
Explanation:
What is the
relationship between the raw materials and
the products in photosynthesis?
Answer:
Photosynthesis is the conversion of light energy into chemical energy by living organisms. The raw materials are carbon dioxide and water; the energy source is sunlight; and the end-products are oxygen and (energy rich) carbohydrates, for example sucrose and starch
Explanation:
What is the diploid phase?
Answer:
In the sporophyte phase a diploid (having two sets of chromosomes) plant body grows and eventually produces spores through meiosis. These spores divide mitotically to produce haploid (having a single set of chromosomes) gamete-producing bodies called gametophytes.
Explanation:
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Which of the following cannot reliably prevent the impact of hurricanes on hurricane-prone places?
A)
restoring freshwater marshes
B)
allowing the growth of a natural buffer of trees
C)
completely preventing settlements in areas that seem prone to catastrophes
D)
encouraging people to avoid settling in areas known to be hazardous
E)
using satellite images to predict hurricanes
Answer:
I think the answer is d I hope this help
Answer:
A) restoring freshwater marshes
Explanation:
got it right on edg
True or false if false type the right answer. History
Sorry I choosed biology by mistake
Answer:
the first is mostly false but somewhat tru the second is true and the third is true
Explanation:
Someone, please help me!
Answer:
Independent variable: temperature
dependent variable: clams
optimum temp is 30 degrees
I'm not exactly sure about the mean
for number five since it went up 20 then I would say 52
the last one is a hypothesis
Explanation:
Qual das alternativas abaixo nao corresponde a função da agua? Solvente. Mudança de temperatura. Não tranporta substâncias. Hidrólise
PLS HELP MEEEE IM TIMED!!
Answer:
...34 minutes later...
Explanation:
Hi sorry Im probably too late anyway but I do hope you did good! Have a wonderful week!
How to write 778,000,000 in scientific notation
To answer the question what is 77800000 in scientific notation let’s recall how to convert 77800000 to scientific notation as detailed on our home page.
When you split the number 77800000 into a coefficient and a power of 10 you do get 77800000 in exponential form, but there is an indefinite number of possibilities.
As you probably want 77800000 in normalized scientific notation, the coefficient or significand of 77800000 in scientific notation must be in the interval [1,10[.
As there are many ways to express 77800000 in scientific notation, in this post we mean 77800000 in normalized scientific notation, unless stated otherwise. Therefore:
77800000 in scientific notation = 7.78 × 107.
Answer:
yoo im just now learning about this
i think u just move the decimal right? so it would 7.8 with a power of 10^7?
Explanation:
What percentage of our usable freshwater is already polluted?
Answer:
3% of the earth's water is fresh. 2.5% of the earth's fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth's surface to be extracted at an affordable cost. 0.5% of the earth's water is available fresh water
Explanation:
please give brainliest
Answer:
Water covers about 71% of the earth's surface.
326 million cubic miles of water on the planet
97% of the earth's water is found in the oceans (too salty for drinking, growing crops, and most industrial uses except cooling).
320 million cubic miles of water in the oceans
3% of the earth's water is fresh.
2.5% of the earth's fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth's surface to be extracted at an affordable cost.
0.5% of the earth's water is available fresh water.
If the world's water supply were only 100 liters (26 gallons), our usable water supply of fresh water would be only about 0.003 liter (one-half teaspoon).
In actuality, that amounts to an average of 8.4 million liters (2.2 million gallons) for each person on earth.
This supply is continually collected, purified, and distributed in the natural hydrologic (water) cycle.
Where Water is Found and the PercentageOceans97.2%Ice Caps/Glaciers2.0%Groundwater*0.62%Freshwater Lakes0.009%Inland seas/salt lakes0.008%Atmosphere0.001%Rivers0.0001%TOTAL99.8381%
HELPPPPPPPP FASTTTTTTTTTTT NOWWWWW
7. Fill in the table below:
Original DNA strand
A
T
G
G
G
C
T
A
C
T
A
G
(a) Complementary DNA strand
(b) Complementary mRNA strand to DNA in line (a)
(c) Amino Acids that would be made from the mRNA in line (b)
Answer:
T
A
C
C
C
G
A
T
G
A
T
C
Explanation:
Each base is paired as follows in DNA:
A paired with T
T paired with A
C paired with G
G paired with C
The letters refer to the primary nucleic acid bases: adenine, cytosine, guanine, and thymine.
b) mRNA strand:
A
U
G
G
G
C
U
A
C
U
A
G
c) Amino Acid Table below! Remember to start from the 5' end of mRNA (toward the 3' end) at a 'start codon'. So read through until you find a group of 3 that make up a start codon, then end with a 'stop codon'. I have to go take a final exam, but you got this!!!
When a slingshot is held in the position shown in the diagram, what kind
of energy is present?
Answer:
I can't see a diagram. But if the arrow is not moving, but about to be released it would be known as potential energy.
9 facts about continents?
Explanation:
The seven continents include: North America, South America, Europe, Asia, Africa, Australia, and Antarctica. The Continent of Africa is home to the World's third largest desert. This desert is called the Sahara Desert. It is the hottest desert in the world and takes up an area as large as the country of China.
you can make points out of this
Answer:
-Austrailia/Oceania is the smallest continent of the planet.
-Africa is the continent with the most countries.
-The oldest human fossils were discovered in Africa.
-About 580 million people live on North America.
-Europe houses 2 of the smallest countries in the world.
-About 430 million people live on South America.
-Antartica is the smallest continent by population.
-Asia houses some of the richest nations in the world.
-Africa houses the largest river in the world.
help me guys please
without 1
Answer:
1. D AND B
2.B
3.D
.................. THAT ALL I KNOW