Plant and animal cells are complex and contain many structures.

a. True
b. False

Answers

Answer 1

Answer:

false ig because animal cell is not complex(i am not sure)


Related Questions

plz explain in your own words
what are conjugated molecules????

Answers

In chemistry, a conjugated system is a system of connected p orbitals with delocalized electrons in a molecule, which in general lowers the overall energy of the molecule and increases stability. It is conventionally represented as having alternating single and multiple bonds

Why are temperatures hotter in locations near the equator?

Answers

Temperatures are hitter around the equator because the equator is the part of the earth that has the most heat from the sun directed onto it unlike the north and south pole that have snow because they are farther away
Most of the heat from the sun is directed onto the equator

write paragraph about digestion of food in brief​

Answers

Answer:

Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream.

Explanation:

according to wikipedia!

Digestion is nothing but breaking down of substances into simpler forms, which the body can use. We eat many things and they have very complex compounds, our body cannot use these compounds. So, different parts of our digestive system breaks down different compounds to simpler forms, so that our body can use it for different functions.

What are the three outcomes of C3a and C3b?

Answers

Answer:

Complement

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The Complement System: Overview

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Major component of Innate Immune System

Consists of over 30 proteins, which participate in a tightly regulated cascade-like activation process.

Protects host from pathogenic microorganims, contributes to immune complex regulation & is an important link between the innate & adaptive immune systems.

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3 Major Outcomes of Complement Activation

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1. Stimulation of inflammatory reactions via release proinflammatory mediators, which induce chemotaxis of leukocytes (leading to microbe destruction) & inflammation

2. Opsonization of pathogens by depositing fragments of complement proteins on the pathogens, making them more susceptible to phagocytosis

3. Complement-Mediated Cytolysis, via formation of a Membrane Attack Complex, which can insert itself into bacterial membrane & cause osmotic lysis

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Alternative Pathway Steps

Lectin Pathway Activation

Classical Pathway Activation

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The Complement System: Overview

Major component of Innate Immune System

Consists of over 30 proteins, which participate in a tightly regulated cascade-like activation process.

Protects host from pathogenic microorganims, contributes to immune complex regulation & is an important link between the innate & adaptive immune systems.

3 Major Outcomes of Complement Activation

1. Stimulation of inflammatory reactions via release proinflammatory mediators, which induce chemotaxis of leukocytes (leading to microbe destruction) & inflammation

2. Opsonization of pathogens by depositing fragments of complement proteins on the pathogens, making them more susceptible to phagocytosis

3. Complement-Mediated Cytolysis, via formation of a Membrane Attack Complex, which can insert itself into bacterial membrane & cause osmotic lysis

Explanation:

i don't know if It helps you...parang Ang layo naman Ng sagot ko sa tanong mo

This mountain slope towers over a town several hundred feet below. Which two weather events present the highest risk to the town

Answers

avalanche or rock slide

Q.#23.Lymph nodes are soft, small, round- or bean-shaped structures. They usually cannot be seen
or easily felt. They are located in clusters in various parts of the body, such as the: Neck, Armpit, Groin
and Inside the center of the chest and abdomen. At times these areas used to be swollen up for few days and are
gone. Explain why these swollen experiences are important.​

Answers

Answer:

Lymph nodes swell to protect us from illness if they do not swell non fatal illnesses could spell out death

Explanation:

which among the following is not a part of pistil option a ovary option B stigama option c vein option d style ​

Answers

Answer:

c vein option

Explanation:

veins are parts of animals, not plants

Count the number of breaths you take in a minute and compare it with the number of times a fish opens and closes its mouth

Answers

Answer:

Don't know sorryyyyyyyyyyyyyyyyyyyyyyyyyyyyy

what is the main purpose of the pupil

Answers

Answer:

to adjust how much light is let into the eye

Explanation:

Answer:

The pupil is where light enters the eye. How much light is controlled by the iris which surrounds the pupil and opens and closes it like a camera lens aperture.

What processes found at a divergent boundary will help form the following rocks? ​

Answers

Answer:

B

Explanation:

What is a divergent boundary:

In plate tectonics, a divergent boundary is a linear feature that exists between 2 tectonic plates moving away from each other.

They can produce rifts, which become rift valleys.

Divergent boundaries also form volcanic islands, which occur when the plates move apart to produce gaps that magma rises to fill.

Sedimentary rocks form due to deposition, and accumulation

Metamorphic rocks form in a transformation of existing rock to new rock in a process called metamorphism.

Igneous rocks form through the cooling and solidification of magma or lava.

When the filled gaps of magma cool off, it will produce igneous rocks.

A key difference between primary cell cultures and secondary cell lines is that:____.a. primary cell cultures tend to stay alive and divide longer than secondary cell lines. b. secondary cell lines are generally cancerously transformed and will divide indefintely. c. secondary cell lines grow slower than primary cell cultures.d. the cells in primary cell cultures do not divide.

Answers

Answer:

d. the cells in primary cell cultures do not divide.

A key difference between primary cell cultures and secondary cell lines is that the cells in primary cell cultures do not divide.

hope it helped you

Explanation:

The main difference between primary and secondary cell culture is that the primary cell culture contains the cells directly obtained from host tissue, whereas the secondary cell culture contains sub-cultured cells from primary cell culture.

This organelle is considered the location for genetic material.

Answers

Answer:

The nucleus contains most of the genetic material (DNA) of the cell. ... Also located in the nucleus is the nucleolus or nucleoli, organelles in which ribosomes are assembled.

B 3.1 Suggest which leaf carries out more photosynthesis and explain why. Below is a section of part of a plant as seen with a light microscope. (4) E e 3.2 Provide labels for: (a) different types of cells A, B and C (3) (b) structure D (c) The waxy, water-repellent layer E Provide a suitable heading for the above diagram (1) (1) 3.3 (1)​

Answers

The leaf that carries out more photosynthesis is the bigger leaf since it has a larger surface area and will have more chloroplasts.

The labeled parts of the plants are found in the attachment.

A suitable heading is "parts of a plant".

What is the role of chloroplasts in photosynthesis?

Chloroplasts play a crucial role in the process of photosynthesis, which is the primary means by which plants, algae, and some bacteria convert light energy into chemical energy.

Chloroplasts are the organelles where photosynthesis occurs, and they provide the necessary structures and molecules for capturing light energy, generating ATP and NADPH, and converting carbon dioxide into organic compounds.

They are essential for the survival and growth of autotrophic organisms and form the basis of the food chain on Earth.

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what are the three functions if cnidarians gastrovascular cavity?​

Answers

Answer:

Digestion, distribution of nutrients throughout the body, and it can serve as a hydrostatic skeleton.

on
Directions: Choose the correct answer listed from the box below and then
write the letter of your answers a separate sheet of paper for your
answers.
1. It is formed from the fossilized remains of prehistoric plants and
animals
2. An earth's material results from the rock fragments that have been
created physical weathering.
3. Another earth's material naturally occurred in solid substances that
are composed of ions and molecules bonded together.
4. The materials are derived from nature and used by the people to
survive or satisfy needs.
5. The place where natural resources are rich has fertile arable lands
and home to the largest metallic minerals
6. To use without being completely used up or destroyed
7. A practice to use the resources wisely
8. A renewable resource produces the most electricity
9. An energy resource that will run out in the next several years
10. Renewable energy coming from the sun
4.Non-renewable
E. Philippines
II. Sustainable
B Hydroelectric
F. Minerals
J. Fossil fuel
C. Soil
G. Natural resources
K. Solar Energy
D. Conservation​

Answers

woah thats crazy so so so so crazy

Is there a particular type of fiber that is found mostly in the mucous connective tissue???

Answers

Explanation:

connective tissue. The fixed and transient cells found in connective tissue. ... Collagen fibers - most are type I collagen (most abundant protein in the body) ... It provides tensile strength in multiple directions. slide.

2. What does it mean for a species to have high biological fitness? Explain in terms of survival and reproduction​

Answers

Answer:

FITNESS IS THE ABILITY TO REPRODUCE FOR ANY ORGANISM

IF THEY CAN'T REPRODUCE THEY WON'T EXIST

Explanation:

Which of the following is a skin sensory receptor for touch?
A) Pacinian corpuscle
B) Meissner's corpuscle
C) Ruffini body
D) free nerve ending

Answers

The answer is B.Meissners corpuscle

Meissner's corpuscle is a skin sensory receptor for touch.

Meissner corpuscles are responsible for the sense of touch or light pressure, that is, they are very sensitive to the movement of objects on the skin and to very low vibrations.

About Meissner corpuscles:

• They are located on the lips and fingertips and are very sensitive.

• Meissner corpuscles act when there is a soft and light touch, and when vibrations are less than 50 hertz.

• These receptors can be altered when there is the presence of diseases where both thermal and tactile sensitivity are altered.

Therefore, we can conclude that Meissner corpuscles detect fine touch, that is, they are receptors on the skin that are sensitive to low-frequency vibration.

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Which of the following regulate stress response, mechanical lode, hormonal signals, and new bone deposits?
a. Mechanoreceptors
b. Osteoclasts
c. Osteoblasts

Answers

Answer:

The correct answer is - a. Mechanoreceptors.

Explanation:

Mechanoreceptors are protein receptors that are responsible for chemical and hormonal signals, regulating the stress response, mechanical lode, and new bone deposits in osteocytes during bone remodeling.

Osteo blasts and osteoclasts are also play role in bone remodeling. The mechanoreceptor is s a sensory receptor that responds to mechanical pressure or distortion.

What is the meaning of reality???

Answers

Answer:

life is nothing

Explanation:

i want to die

Answer:

reality means real real things or the real nature of things rather than imagined, invented,

How are cells able to guarantee that are DNA is always replicated correctly every time? 



Help will give brainl

Answers

Because if it’s sexual it has to have both parnets dna and if it’s asexual it has to have one parents dna

what happens to water when it boils​

Answers

Answer:

When water starts boiling evaporation takes place

Match each of the following muscles with its correct description.

a. sternohyoid
b. hyoglossus
c. frontalis
d. mentalis

1. originates on the sternum and clavicle
2. classified as an infrahyoid muscle
3. consists of two bellies
4. elevates and protrudes lower lip

Answers

A2
B4
C1
D3
I think sorry if I get one wrong

The oxidase test is another biochemical test used to distinguish aerobic versus anaerobic metabolism in microbes. Research the oxidase test and describe how it is performed. Include examples of oxidase-positive and oxidase-negative microbes in your answer.

Answers

The Bacillus genus is usually negative in regards for the Oxidase test.

Oxidase test is a biochemical test that is used to identify organisms that produce the enzyme  oxidase.

Oxidase test is used to distinguish aerobic from anaerobic metabolism in microbes.

Aerobic metabolism is the use of oxygen to generate energy from a food source while anaerobic metabolism is the generation of energy with the absence of oxygen.

The procedure of oxidase test includes:

Place a piece of filter paper in a clean petri dish and add 2 or 3 drops of freshly prepared oxidase reagent.Using a piece of stick or glass rod (not anoxidized wire loop), remove a colony of the test organism and smear it on the filter paper.Look for the development of a blue-purplecolour within a few seconds as shown in colour

Blue purple colour signifies oxidase positive organisms which includes Pseudomonas aeruginosa

Colourless signifies oxidase negative organisms which includes Escherichia coli

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Select the correct answer.
How does the high specific heat of water help maintain the temperature of earth?
A By heating and cooling more slowly than land or air
B. By heating and cooling faster than land or air
с.
By heating faster but cooling more slowly than land or air

Answers

i’m pretty sure it is B

The high specific heat of water help maintain the temperature of the Earth by heating and cooling more slowly than land or air. Thus, the correct option is A.

What is the specific heat of water?

The specific heat of an object is the amount of heat which is required to increase or raise the temperature of unit mass of that particular substance through one degree celsius. Specific heat is represented by the symbol 'c'. Its unit in SI system is Joule /(kg °C) and in CGS is cal / (gm °C).

The high specific heat of water helps in regulating the rate at which air changes its temperature, which is why the temperature of the planet change between different seasons is gradual rather than sudden, especially the geographical locations near the ocean.

Therefore, the correct option is A.

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Coffee trees grown in the shade of taller forest trees produce fewer coffee beans than trees grown on cleared forestland. However, unlike coffee grown in full sun, shade-grown coffee preserves some habitat for forest birds and other organisms. What is one advantage of growing coffee in the shade?
A. It harms the environment.
B. It provides farmers with greater profits.
C. It costs more than other growing methods.
D. It helps maintain forest biodiversity.

Answers

Answer:

d

Explanation:

provides animals with homes letting them breed

It helps maintain forest biodiversity. Therefore, option (D) is correct.


Why is coffee grown in shade?

One advantage of growing coffee in the shade is that it helps maintain forest biodiversity. By growing coffee trees in the shade of taller forest trees, farmers preserve some habitat for forest birds and other organisms, which can help to maintain the overall biodiversity of the forest ecosystem.

This is particularly important in regions where forests are being cleared for agricultural purposes, as it can help to mitigate the negative impact on the environment.

While shade-grown coffee may produce fewer coffee beans than trees grown on cleared forestland or in full sun, it provides important ecological benefits that are not captured by purely economic considerations

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3. Identify the natural cycle that is shown in the diagram. Then, for each box in the diagram, write one or two sentences explaining the labeled process as it relates to this cycle.

Answers

Answer:

the oxygen/carbondioxide cycle

Explanation:

decay creates carbon-dioxide, and plants does both cellular respiration and photosynthesis since plants are still alive. and there is oxygen and carbon-dioxide in rocks. basically the living mostly use cellular respiration and photosynthesis and non-living (the ocean and factory) produce oxygen and carbon-dioxide

What is the form of lipids, protein and carbohydrate that can be absorbed through small intestine?​

Answers

All carbohydrates are absorbed in the form of monosaccharides. The small intestine is highly efficient at this, absorbing monosaccharides at an estimated rate of 120 grams per hour. All normally digested dietary carbohydrates are absorbed; indigestible fibers are eliminated in the feces.

Receptors trigger one of two effector pathways resulting in changes in neuronal activity. These changes will, ultimately, effect gene expression. Which effector pathway is characterized by ion flux through transmitter-activated channels resulting in an altered membrane potential and neuronal activity

Answers

Complete question:

Receptors trigger one of two effector pathways resulting in changes in neuronal activity. These changes will, ultimately, effect gene expression. Which effector pathway is characterized by ion flux through transmitter-activated channels resulting in an altered membrane potential and neuronal activity?

A.  Slow effector pathways

B.  Modulated effector pathways

C.  Rapid effector pathways

D.  NMDA glutamate receptor pathways

Answer:

D.  NMDA glutamate receptor pathways

Explanation:

The NMDA glutamatergic receptor is a cationic channel receptor modulated by a ligand that allows the transport of Na+, K+, and Ca2+. Under certain situations, it exhibits particular permeability to Ca2+. The receptor has different regions that are susceptible to modulation by endogenous and exogenous agents. The receptor can be found at most excitatory synapses, where it responds to the neurotransmitter glutamate. During synapsis, the presynaptic membrane releases L-glutamate, which is received by NMDA glutamatergic receptor. The receptor plays a regulatory role because activates signaling cascades that depend on calcium.

These receptors are involved in normal synaptic transmission, in a diverse physiological phenomenon, and might be responsible for neurodegenerative processes.

The NMDA glutamergic receptor is characterized by ion flux through transmitter-activated channels resulting in membrane potential.

What are transmitter-activated channels?

Transmitter-activated channels are channels through cell membranes which are activated by binding of transmitters.

An example of a transmitter-activated channels is the NMDA glutamergic receptor.

The NMDA glutamergic receptor is a ligand-gated cationic channel that allows calcium, potassium and sodium ions through it.

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How does excretion takes place in amoeba

Answers

Answer:

excretion takes place through body surface by simple diffusion

Answer:

Amoeba is a unicellular organism living in fresh water bodies. The waste materials are excreted by the process of diffusion through general body surface. Contractile vacuoles also play some role in removal of waste materials.

hope it helps

have a nice day

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