Which is a heterotrophic protist?

A.
euglena, because it has chloroplasts

B.
volvox, because it has an eyespot

C.
volvox, because it has cilia

D.
amoeba, because it engulfs food

Answers

Answer 1
D I’m not sure though
Answer 2
I’m pretty sure it’s D

Related Questions

The zygote is said to be Choose... , because it is able to develop into any kind of cell in the body. Adult stem cells are referred to as Choose... , because they can differentiate usually only into the cells of the tissues where they are found, whereas embryonic stem cells are Choose... because they can develop into any of the body’s cell types, although they cannot form the tissues surrounding the embryo.

Answers

Answer:

The correct answer is -

1. totipotent

2 multipotent

3. pluripotent

Explanation:

The cells that are able to develop or differentiate a different kind of cells in the body of the individual are known as totipotent cells and this ability is known as totipotency. An example of such cells is found in the zygote.

Multipotent on the other hand are the cells that are able to develop into a specific kind of cell of tissues these cells are present and the example of this type of cell is adult stem cells. Whereas Embryonic stem cells are Pluripotent cells that are characterized as the cells that develop into any type of cell of the body of an organism.

I NEED THIS ASAP!!!!!
Gravity is an example of which kind of force??
A) contact
B) noncontact
C) speed
D) direction

Answers

Answer:

I want to say B. Noncontact

Explanation:

I hope this helps!

Answer:

b

Explanation:

A producer gets energy from _______ and converts it into food. a.Primary consumers b.The sun c.Nonliving organic matter d.Secondary consumers

Answers

The answer is going to be B. The sun

Explain how form and function are related in human cells. Include examples.

Compare and contrast epithelial and muscle tissues.


PLEASE HELP ME!

Answers

Answer:

The cell structure is formed according to their function.

Explanation:

Form and function are related to each other in human cells because the cells structure is formed according to its function. epithelial tissue are the group of cells that act as coverings of the body and controlling the movement of materials across their surface whereas muscle tissues are group of cells that are responsible for the movement of the body. Both tissues has different structure which allows it to perform different function.

Can some one help me on 4-5 I need the help plzzzzz

Answers

Answer:

What does the fox say?!?!?!?!?!?!?

Explanation:

NI NI NI NI NIN IN IN IN IN INININININININININNINI

Explain how a chemical reaction occurs using the following terms
Reactant
Product
Activation energy
Bond
Endothermic
Exothermic
Rate

Answers

For a chemical reaction to occur, activation energy is required. Using the activation energy, reactants form products by breaking bonds which require energy. This type of reaction is an endothermic reaction. When products are formed, bonds are formed back by releasing energy. This type of reaction is an exothermic reaction. When activation energy is used for a reaction, a catalyst is not required. Adding a catalyst to the reaction causes the rate of reaction to increase.

A chemical reaction is a process where two or more reactants are converted to one or more products at a given rate, which requires a minimum amount of energy.

A reactant is a starting substance in a chemical reaction, whereas products are formed at the end of the reaction.

The rate of reaction is the velocity of the chemical reaction.

Activation energy refers to the minimum amount of energy required to activate reactants and thus start a chemical reaction.

The chemical reactions store/release energy by destroying/building chemical bonds between atoms/molecules.

Exothermic reactions release energy when the bonds are formed; whereas endothermic reactions consume energy.

In conclusion, a chemical reaction is a process where two or more reactants are converted to one or more products at a given rate, which requires energy. These reactions can be exothermic processes or endothermic processes.  

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explain why the circulatory system of a frog is less efficient at carrying oxygen to the tissue than the circulatory system of a human.

Answers

Answer:

because the frog is not really persons that the reasons why frog less the circulatory sysyem

What part of a flowering plant develops into a seed after fertilization has taken
place? The diagram shows this at # 4.

Answers

Answer:

The ovules would develop into a seed after fertilisation. #4 is pointing to it

Mountain Ranges are located near ______________________________ boundaries.

Answers

AnsI was just doing this a few weeks ago I think i remembered saying it was convergent boundries and got it right!!Hope this helps yoo.     :)

Explanation:

Help me out with this question

Answers

Carbohydrate monomer because it’s glucose which is a sugar

Answer:

the answer is B, hope this helps

Explanation:

You find a rock sample with radioactive atoms present. 25% of the original radioactive atoms were present, how many half lives have passed

Answers

Answer:

Im literally taking a test that my teacher made and i have no idea what the answer is

Explanation:


Which of the following would NOT be a density-dependent limiting factor?
Disease
Food
Water
Extreme weather

Answers

Answer:

factors. Some—such as competition, predation, parasitism, and disease—depend on population density. Others—including natural disasters and unusual weather—do not depend on population density.

Explanation:

.

Regarding population growth rates, the
faster a population grows the
the population's doubling time,
A. higher
B. more complex
C. lower
D. less complex

Answers

Answer:

more complex

I hope this answer is correct

What are spring tides called (high tides or low tides)

Answers

Answer:

Spring tides have higher high tides and lower low tides

so spring tides or low and high just more extreme in either direction

Which of the following is the correct
chemical formula for glucose?
и
A. C 2 H ₂012
B. CeH1206
C. C12H06
D. C.H.012
и

Answers

Answer:

C6H12O6

Explanation:

This is glucoses formula

3. What is the kingdom that contains single-celled organisms that live in extreme environments?

A. plantae

B. bacteria

C. protista

D. archaea​

Answers

D - Archaea

All organisms are unicellular & they live in extreme environments, like heat and salt.

The kingdom that contains single-celled organisms that live in extreme environments is archaea. The correct option is D.

What are single-celled organisms?

A single cell makes up a unicellular creature, also referred to as a single-celled organism, as opposed to a multicellular organism, which is made up of numerous cells. Similar to Eukarya, Archaea have RNA polymerases that are more complicated than those of bacteria.

Archaea do not have peptidoglycan in their cell walls, in contrast to bacteria. The membrane lipid bonding of archaea differs from that of bacteria and eukarya.

Genetic differences exist. Similar to Eucarya, Archaea have RNA polymerases that are more complicated than those of bacteria. Archaea do not have peptidoglycan in their cell walls, in contrast to bacteria. The membrane lipid bonding of archaea differs from that of bacteria and eukarya. Genetic differences exist.

Therefore, the correct option is D. archaea​.

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Which statement is most accurate regarding the energy in the process of photosynthesis?

Light energy does not need to be present for photosynthesis to occur.

Light energy is completely lost during the photosynthesis reaction.

More energy is created than what was present initially.

Light energy is converted into chemical energy in photosynthesis.

Answers

Answer:
D) Light energy is converted into chemical energy in photosynthesis

Answer:

D) Light energy is converted into chemical energy in photosynthesis

Explanation:

Hope this helps

I can live on the land or water, and I have a lot of cells. I have to consume other organisms , what kingdom am I?

Answers

I believe it would be the reptile kingdom!

The effect of carbon dioxide on the atmospheric temperature is BEST shown by graph

Answers

Answer: definitely C will help you

Explanation:

Due to green house effect carbon emission increases rapidly day by day due to which the temperature of earth has been increasing with respect to time.We can clearly observe that the graph C shows the exact condition. Thus, C is the correct option.

What is the main reason of emission of carbon?

According to the information given in the question, we can state that global temperatures tend to increase as carbon emissions increase due to green house effect.

According to the information in the question, the increase in carbon emissions is one of the main factors responsible for the increase in global temperatures.

This can be proven by observing the graph, where it is possible to see that there was a significant increase in global temperatures, as carbon emissions increased.

These carbon emissions are the result of the increase in human activities and industrial processes, which promote the degradation of the atmospheric layers and allow an intense increase in global temperature.

Therefore, Due to green house effect carbon emission increases rapidly day by day due to which the temperature of earth has been increasing with respect to time.We can clearly observe that the graph C shows the exact condition. Thus, C is the correct option.

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Which of the following are factors that limit enzyme activity?

denaturation

increase in substrate

optimal temperature

increase in number of enzymes

Answers

According to the research, increase in substrate and temperature are factors that limit enzyme activity.

What are enzymes?

It is a protein that catalyzes the biochemical reactions of metabolism and acts on molecules known as substrates.

The way that the enzyme has to carry out its catalytic activity will be in the first place to bind with the substrate, this is limited by different factors such as the concentration of the substrate and the temperature.

Therefore, we can conclude that according to the research, increase in substrate and temperature are factors that limit enzyme activity.

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What might happen to a cell if it gets too large?

Answers

Answer: an "information crisis" would occur. The cell has more trouble moving enough nutrients and wastes across the cell membrane.


Explanation:


Which of the following functions at the same organizational level as the kidney in the human
excretory system?

Answers

Answer:

Its the Urinary bladder

Explanation:

A. skeleton

B. epithelial tissue

C. urinary bladder

D. a squamous cell

The correct answer as to which functions at the same organizational level as the kidney in the human excretory system would be the urinary bladder. The correct option would, thus, be C.

There are 4 progressive levels of organization as far as life is concerned. These are:

celltissuesorganssystems

The cell is the basic unit, tissues are made of 2 or more cells, organs are made from multiple tissues, while systems are formed from numerous organs.

The kidney is at the organ level and so is the urinary bladder. Skeleton is a system made from different organs, epithelia tissues are tissues, while squamous cells exist at the cellular level.

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Which process is necessary for cell division? *

Answers

Answer:

a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells.

Explanation:

Mitosis is necessary as it enables the cell to split. Another example of cell division is meiosis which involves gametes.

I hope this helps.

help i’m confused ???

Answers

Answer:

anaphase for the first one be cause the chromosomes are being pulled away by centrioles.

metaphase for the second one because the chromosomes are in the middle and centrioles are attached to them, getting ready for anaphase.

telophase for the third one since the cells are separating.

prophase for the last one.

How does ATP carry energy?

Answers

The energy-carrying part of an ATP molecule is the triphosphate "tail". ... The electrons in these bonds carry energy. Within the power plants of the cell (mitochondria), energy is used to add one molecule of inorganic phosphate (P) to a molecule of adenosine diphosphate (ADP).

30 POINTS!!

Using radioactively labeled DNA probes in studies of heredity makes it
possible for a scientist to:


A. study the inheritance of traits that are not seen as a phenotype.

B. make many more copies of a target gene with PCR.

C. produce clones with DNA from two different species.

D. cause new mutations that will not add variation to a species.


Answer it’s right plzzzzzz

Answers

It’s B i just took the test lol

Answer:

B. make many more copies of a target gene with PCR.

Explanation:

;D good luck!

What viral reproduction cycle allows the cell to reproduce it self along with the viral genetic material
A. lytic cycle
B. lysogenic cycle
D. both

Answers

The answer is lysogenic cycle

Explain how a symbiotic relationship like the one described in the endosymbiotic theory would have benefited each cell.

Answers

Answer:

cannot grow outside their host cell of biolapsy

The symbiotic relationship is a type of relationship in which two organisms living with each other and gives benefit to one another.

Mutualism is a type of symbiotic relationship in which both organisms benefited from one another. In this type of relationship, one organisms is smaller that lives inside the body of other big organisms.

For example, bacteria lives in the nodules of plant's root. The plant provides shelter to the bacteria while on the other hand, bacteria fixes atmosphere nitrogen into available form so in this way both get benefits from one another.

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please help meeee ! ​

Answers

Answer: B - Thicker layer of blubber

Explanation: Seals are well adapted to cold polar environments with thick blubber layers that act both as a food reserve and insulation. Most seals also have a layer of fur, giving additional insulation on land.

Hope this helps :)

The answer to your question is B

Companies spend a significant amount of money creating prototypes in the product development phase of a product.
O True
O False

Answers

Answer:

False, I think (if it isn't false then sorry)

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