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.
Which of the following has been proven true by researchers of identical twins?
a. Identical twins have different personality genes.
b. Identical twins are never the same gender.
c. Identical twins share the same DNA and blood type.
d. Identical twins are no more alike than fraternal twins.
Answer: B. Blood Type
Explanation: Got it right on edge
In Aquarium C, would the water level on the side with 30% solution of NaCl be higher, lower, or equal to the water level on the side with 5% solution? Explain
Answer:
In Aquarium C, the water level on the side with 30% solution of NaCl will be higher than the water level on the side with 5% solution.
Explanation:
The movements of molecules based on differences in concentrations of these molecules in different regions is explained by the phenomena of diffusion and osmosis.
Diffusion is the movement of moleculesmfrom regions of higher concentrationto regions of lower concentration until equilibrium concentration is attained.
Osmosis which is a special form of diffusion involving water molecules is the movement of water molecules in a solution across a semipermeable memebrane, from regions of high solvent concentration (low solute concentration) to regions low solvent concentration (high solute concentration) until equilibrium is attained.
A 30% solution of NaCl is more concentrated than a 5% solution of NaCl, therefore, water molecules will move across the semipermeable from the 5% solution to the 30% solution. This will result in a rise in the water level in the 30% solution.
Thus in Aquarium C, the water level on the side with 30% solution of NaCl will be higher than the water level on the side with 5% solution.
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:
A food web shows how energy moves from one organism to another in an ecosystem. Students in a life science class created a diagram demonstrating a food web.
FOOD WEB
Owl
Snake
Hank
Frog
Grasshopper
Mouse
Rabbit
Caterpillar
Wheat
Dandelion
Clover
Based on the food web, which of these organisms receives its energy directly from a primary consumer?
caterpillar
dandelion
frog
grasshopper
True or false: A cell's DNA is replicated during the M phase of the cell cycle.
What factors do you need to know in order to calculate a region's population growth
What's does the term origin time mean in earth science
Answer:
Well depending on context it can mean different things, I could mean one of these three thing, choose the one you think is the most suitable,
(1) The birth, existence, or beginning; starting point. (2) The cause; that which causes something to arise. (3) That which acts as the source or that which from where something is derived.
GIVING BRAINLIEST!!!!!!
A large population of Yellow perch lives in the East river. The Walleye is a larger fish that eats the Yellow Perch. Despite lots of prey all the Walleye have moved from the East river to a new river. What most likely caused the Walleye to move to a different river?
A) There is a lack of food in the East river which caused the Walleye to move to a different area.
B) The Walleye are no longer able to catch the Yellow Perch and need to move to a different area.
C) There is climate change which has caused the resources to decline in the East river.
D) There is pollution in the East river that the Yellow Perch are adapted to but the Walleye are not.
Answer:
d
Explanation:
hope this helps
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:
All the the cells are the same on the inside?
true or false?
Answer:
false
Explanation:
because the cells are unique and different
Answer:
Even though there are many different types of cells, they all share similar characteristics. All cells have a cell membrane, organelles organelles, cytoplasm, and DNA. ( is false)
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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.
The fossil at point X has been dated to be 65 million years old. What can
relative dating indicate about the fossil at point Y? *
A) The distortion of organism by the fault
B) The type of environment the organism lived in
C) The age of the organism when it died
D) The similar time period in which the organism lived
Answer:
D.The similar time period in which the organism lived
sample 1
sample 2
sample 3
sample 4
Answer:
Sample 1
Explanation:
Dna contains carbon, hydrogen, oxygen, nitrogen, and phosphorus. These make up the sugar-phosphate backbone of the DNA also known as the sides of the ladder.
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
Qual das alternativas abaixo nao corresponde a função da agua? Solvente. Mudança de temperatura. Não tranporta substâncias. Hidrólise
This thermogram shows a person using a computer. Complete the sentence to describe the flow of thermal energy between the person and the computer.
Thermal energy will flow from the
to the
Answer:
The thermal energy will flow from the computer to the person.
Explanation :
Usually computer are such devices which converts electrical energy into thermal energy and then it gets transferred to the person. The energy flows from the higher amount to lower amount. In this case, computer is producing higher thermal energy than the person that’s the reason for the flow of energy from computer to the person.
The thermal energy will flow from the computer to the person.
What do you mean by thermal energy?The energy in a system that controls its temperature is referred to as thermal energy. Heat is the progression of nuclear power. The first law of thermodynamics explains how heat and work are transferred between systems.
Bubbling water on an oven is an illustration of nuclear power. When a substance's atoms and molecules vibrate at a faster rate as the temperature rises, thermal energy is produced.
Utilizing steam power produced by burning oil, coal, liquid natural gas (LNG), and other substances to rotate generators and generate electricity is the process of producing thermal power.
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Students carry out an experiment to test how white button mushrooms grow best. They begin with identical trays that contain straw, wood chips, and compost, as well as the hyphae that will form the mushroom caps. The students' are experiment and results are described in the table.
Which statement Best describes the students' results?
A) Mushrooms grow better at the cooler temperature.
B) Mushrooms grow better at the warmer temperature.
C) Mushrooms grow better when exposed to light for longer periods.
D) Mushrooms grow better when exposed to light for shorter periods.
The statement that Best describes the students' results is option A. Mushrooms grow better at the cooler temperature.
Result of the student:Since the students' are experiment and results are described in the table.
So based on this, we can say that the mushroom should grow better at the cooler temperature.
Also, the number of mushroom should be 34.
Therefore, the option a is correct.
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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.....................,.........
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:
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
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:
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...........
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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Can somebody please help me with all the question?
Answer:
no
Explanation:
What factors may have contributed to the decreased size of the giant panda’s range?
Answer: low reproduction rates, hunting and most importantly habitat destruction
Explanation:
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:
help me guys please
without 1
Answer:
1. D AND B
2.B
3.D
.................. THAT ALL I KNOW
The cactus has a specialized fleshy stem that is specialized to store water for long periods of time. Which plant tissue most likely makes this action possible?
I know the answer is Ground, but i need to know WHY the answer is ground tissue. I WILL MARK BRAINLIEST
(on EDGE)
Answer:
If I were to guess its probably Vascular
Explanation:
Cactuses can store water nearly four months mainly in the winter and watering is not required for them frequently during that time. The stem acts as a reservoir for the amount of water it holds. The ground tissue of cactus has lots of parenchymal cells that store water.
What is parenchyma?The ground tissue system comes from a ground meristem which has three tissues, namely parenchyma, collenchyma, and sclerenchyma.
The ground tissue of cactus has many parenchyma cells that store water.
Thus, it can be concluded that the ground tissues helps cactus to store water for a long time.
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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: