what is the defining characteristic of eukaryotic cells?

Answers

Answer 1

Answer:

It has a true membrane-bound nucleus and has other membranous organelles that allow for compartmentalization of functions..


Related Questions


organ means :
A. the smallest discrete quantity of some physical
property

B. a structure in an animal specialized for some
function

C. the study and classification of animal populations

D. a scale that measures the mental ability of a
person

Answers

Answer:

The answer is B that is the answer

NÊU ÍT NHẤT 3 BIỆN PHÁP ĐỂ PHÒNG TRÁNH CÁC ĐẠI DIỆN GIUN TRÒN KÍ SINH VÀO CƠ THỂ

Answers

Hugh habrán Harvard king

Liên kết hóa học giữa các nguyên tử trong phân tử nước là? *

Answers

Answer: Liên kết cộng hoá trị phân cực.

Explanation: Nguyên tử oxi có độ âm điện lớn hơn nhiều so với nguyên tử hidro, và hiệu độ âm điện trong phân tử H2O = XO-XH = 1,24 ⇒ Liên kết cộng hóa trị phân cực

who discovered that all cells come from preexisting cells?

Answers

Answer:

Rudolf Virchow

Explanation:

Rudolf Virchow in 1858, when he stated omnis cellula e cellula (all cells come from cells).

Hope this helps! Sry if I get it wrong :)

why do those working with livestock need to be particularly concerned about disease

A- Animals Do not process nutrition like plants do

B- Exposure to animal waste can spread disease

C- Animals have more diseases than humans

D- The diet of Animals make them vulnerable to diseases ​

Answers

Your answer is D. Certain diets can either improve or decrease the animals immunity system. Hope this helps

features of euglena as a plant​

Answers

Answer:

The Features of Euglena are:

1. Euglena has chloroplasts that allow it to photosynthesize.

2. Primitive eye-spot which detects light.

3. Euglena lacks a cell wall.

Explanation:

Which of the following is true of enzymes? Enzyme function is independent of physical and chemical environmental factors such as pH and temperature. Enzyme function is increased if the 3-D structure or conformation of an enzyme is altered. Nonprotein cofactors alter the substrate specificity of enzymes. Enzymes increase the rate of chemical reaction by lowering activation energy barriers. Enzymes increase the rate of chemical reaction by providing activation energy to the substrate.

Answers

Answer:

B

Explanation:

Mary noticed that the countertop was warm to the touch.
1. Observation
2. Analogy
3. Inference

Answers

Answer:

1. Observation

Explanation:

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List in order the events of platelet plug formation.

a. Mass of platelets forms a platelet plug.
b. Platelets grow long spiny pseudopods.
c. Pseudopods contract and draw the vessel walls together.
d. Contact with collagen of a broken vessel or another rough surface toggle button.
e. Contact with collagen of a broken vessel or another rough surface

Answers

The answer should be E

This question is really easy please help

Answers

Answer:

the answer is (b)

Explanation:

if it really easy why you didn't get it not being mean or nun anyways hope this helps

What are some of the characteristics that living organisms share?

Answers

Answer:

Growth, reproduction, movement...

please help me asap it should go in 5mins​

Answers

Answer:

A. Breaking down of rock by wind, water, and ice

Explanation:

Took the Test.

Breaking down of rock by wind, water, and ice. Soil is formed through a decomposition reaction

which microscope achieves the highest magnification and greatest resolution?

Answers

Answer:

Electron microscope is made with highest magnification and greatest resolution

write a hypothesis based on observations and scientific principles of the plasma membrane

Answers

Answer:

but you dont have liek a vid or something how do I observate?

Explanation:

Plasma membrane is made of cellular glucose bonds Glucose formula is given by C_6H_12O_6Plasma membrane is also called cell membrane.It is present in both animal and plant cells However in plant cells it is surrounded by cell wall.Plasma membrane let's all important ingredients required for working of cell to get in side the cell and the wastages get out of cell.

which statement is not connect for a convex mirror? (a) Image distance is always positive. (b) The object distance is with negative sign. (c) behind the memor -Always forms an imagebehind the mirror (d)The focal length is always negative.

Answers

Answer:

option (d) is incorrect

Explanation:

the focal lenth in convex mirror [mirror has an outer bulge], is positive, because in this type of mirror image is formed behind the mirror on right side .

according to sign convention, length on the right side it is positive.

PLS HELP I'LL MARK YOU BRAINLIST!!

Answers

Answer:

a malfunction of endoplasmic retuculum

Explanation:

pls mark me brainliest

Answer:

A malfunction of endoplasmic reticulum, because of the it's smooth functioning lipids are synthesized by cell.

the amount of air in the lungs after a normal exhale is called the ______________ .

Answers

Answer:

Expiratory reserve volume

which cell organelle acts as a distribution center by creating vacuoles to transport proteins to different locations around the cell?

Answers

Answer:

ribosomes

Explanation:

which best represents an example of carbon fixation?

Answers

The option that best represents an example of carbon fixation would be the incorporation of CO2 into organic molecules.

Carbon fixation refers to the process of converting atmospheric carbon, mostly in the form of carbon dioxide, to organic molecules in the form of carbohydrates, usually in living organisms.

In living organisms carbon is fixed either via photosynthesis or chemosynthesis.

During the photosynthetic process, inorganic carbon in the form of carbon dioxide combines with water and is converted into carbohydrates in the presence of radiant energy. The process usually happens in green plants.

During chemosynthesis, carbon dioxide reacts with H2S instead of water to arrive at carbohydrates. The process usually happens in chemosynthetic bacteria.

More on carbon fixation can be found here: https://brainly.com/question/7142342

The process of photosynthesis is the best example of carbon fixation.

In the process of photosynthesis, energy from sunlight drives the carbon fixation pathway. photosynthesis process is used by the primary producers such as plants, algae, and cyanobacteria. They contain green pigment named chlorophyll that used the Calvin cycle to fix carbon.

The carbon atom present in the atmosphere in the form of carbondioxide gas fixes by the producers in the form of glucose which have 6 carbon atoms so we can conclude that photosynthesis is the best example of carbon fixation.

Learn more: https://brainly.com/question/25039716

Which type of selection occurs when a population experience a shift in diversity toward the large organisms

Answers

Natural Selection occurs.

what is biological surplus

Answers

Answer:Biological Surplus is the amount of animals in a given population that are "above" the carrying capacity.

Explanation:

1. What are the first three things that come to mind when you think about a Tyrannosaurus rex?

Answers

Answer:

They are carnivorois, small arms, and they are fast runners.

Match the following

(Will mark brainliest)

Answers

Answer:

Maple seed with toma

Explanation:

You spray mosquito repellant on one arm and count how many mosquito bites you have.

What is the manipulated variable and what is the responding variable ?

Answers

Answer:

The manipulated variable is the amount of mosquito repellant or the mosquito repellant you put and the responding variable is the amount of mosquito bites you get

how is chlorophyll helpful to plants ​

Answers

Answer:

chlorophyll traps the sunlight and enables plants to make food, which animals can not.

Hope it helps

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Identify whether each item is a reactant or a product of cellular respiration.

glucose

carbon dioxide (CO2)

water (H2O)

will give brainliest

Answers

Answer: cellular respiration is a metabolic process that converts glucose and utilizes oxygen to generate the energy needed to carry out system processes, specifically ATP. The by-products produced from the process includes water and carbon dioxide.

glucose-reactant;co2 & water-products

Explanation:

Which instrument would be best for measuring mass? *
O Scale that measures grams
O A Flask
O Scale that measures pounds
O A graduated Cylinder
O Measuring tape

Answers

Answer:

Scale that measure pounds

Answer:

Scale that measures grams.

Explanation:

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PLS HELP + EXPLAIN!!! Thx!
(NO LINKS PLEASE)

PHOTOSYNTHESIS!

Answers

Answer:

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Wikipedia

ExplanatiomvLX1LlaAa_E0_xIwP_sjVh1bBtwrg%3A1635236858705&ei=-rt3YYbHKs2N4-EPicqC-Ac&oq=photosynthesis&gs_lcp=Cgdnd3Mtd2l6EAEYADIHCCMQsQIQJzIHCAAQsQMQCjIHCAAQsQMQQzIKCAAQsQMQgwEQCjIHCAAQsQMQCjIECAAQCjIHCAAQsQMQCjIHCAAQsQMQQzIHCAAQsQMQCjIHCAAQsQMQCjoHCCMQ6gIQJzoECCMQJzoFCAAQkQI6CwgAEIAEELEDEIMBOggIABCABBCxAzoECAAQQzoNCAAQgAQQhwIQsQMQFDoOCC4QgAQQsQMQxwEQ0QM6BQgAEIAESgQIQRgAUMTcAVin5gFg4fMBaAFwAHgAgAGfAYgB3QSSAQMwLjSYAQCgAQGwAQrAAQE&sclient=gws-wiz#:~:text=Photosynthesis%20is%20a%20process%20used%20by%20plants%20and%20other%20organisms%20to%20convert%20light%20energy%20into%20chemical%20energy%20that%2C%20through%20cellular%20respiration%2C%20can%20later%20be%20released%20to%20fuel%20the%20organism%27s%20activities.%20Wikipedia

Which of the following is not a mechanism of evolutionary change
A. Gene flow
B. Natural selection
C. Hardy-Weinberg theorem
D. Genetic mutations

Answers

Answer:

Natural Selection I believe

Explanation:

Hope this helps:)

~Kisame'sAbs

what is the primary product of the light dependent reactions of photosynthesis?

Answers

Answer:

Glucose

Explanation:

6H2O + 6CO2 ==> C6H12O6 + 6O2

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