is a pollen grain a cell

Answers

Answer 1
Long story short YES

Related Questions

what are the three animals types

Answers

Answer:

Explanation:

Three different types of animals exist: herbivores, omnivores, and carnivores.

A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is potted in the same type of soil and receives the same amount of sunlight and water each day. Plant A listens to classical music for three hours each day. Plant B listens to rock music for three hours each day. Plant C listens to country music for three hours each day. Plant D does not listen to any music at all. Q: Based on the experiment in the scenario, which visual aid would be most helpful in showing the change in the plants' heights over time? A. a line graph B. a timeline C. a pie chart D. a bar graph

Answers

The most helpful visual would be a bar graph.

A ______, such as a bean, has two seed leaves.

Answers

Answer:

A dicotyledonous plant

hope this helps you

Hãy mô tả các bước tạo thư viện cDNA từ tế bào máu heo.

Answers

Answer:

What you mean bro?

Explanation:

Would you expect ribozymes in organisms that grow in very hot environments , such as hot springs or deep - sea vents , to have a high or low GC content ?

Answers

Answer:

yes I expect ribozymes in organisms that grow in very hot environments , such as hot springs or deep - sea vents.

What is the correct clases for this drugs
Promethazine

heelp me please

Answers

Answer: Please refer to:

Promethazine is in a class of medications called phenothiazines. It works by blocking the action of a certain natural substance in the body.

Explanation:

I'm not sure but hope it helps.

Question 4 of 20
Which energy transfer occurs when a cube of ice is placed in a glass of
water?
A. The chemical energy of the ice is transferred to the liquid water.
B. The nuclear energy in the water molecules is released from the ice
into the liquid water.
C. Gravitational potential energy is transferred from the liquid water
to the ice.
O D. Thermal energy is transferred from the liquid water to the ice.
SUBMIT

Answers

Answer:

option (D) is the right answer

Soil moisture (wethess) is
important for...?
A. it is a determination of how much water the soil can
hold and how easily water moves through,
B. it is evidence of how easily the process of runoff in
which the soil is filtered can occur.
C. Both & B
D. None of the above

Answers

Explanation:

Soil moisture is a key variable in controlling the exchange of water and heat energy between the land surface and the atmosphere through evaporation and plant transpiration.

When considering proteins that help control the cell cycle:
Stimulating proteins are encoded by tumor suppressor genes and inhibitory proteins are encoded by
proto-oncogenes.
O True
O False

Answers

True


oncogene are mutated forms of pronto-oncogene and can lead to over stimulation of the cell cycle.


1) P53 is a inhibitory protein

What about the structure of DNA allows it to copy itself?
A. It is held together mostly by hydrogen bonds, which are easy to open for replication
B. It has enzymes built into the helix that make a copy when needed.
C. It is double stranded, so each side serves as a template for a new strand.
D. DNA is not copied, it is only passed down through each generation.

Answers

Answer:

C. It is double stranded, so each side serves as a template for a new strand

Explanation:

The structure of DNA is double stranded, so each side serves as a template for a new strand. The correct option is C.

What is DNA replication?

Replication is the procedure by which the DNA of the genetic code is copied in cells.

Before dividing, a cell must duplicate (or replicate) its a whole genome so that each eventually results daughter cell has its own entire genome.

The DNA replicates itself multiple times during the process of replication. It is a biological polymerization that goes through the steps of commencement, elongation, and termination.

The reaction is catalyzed by enzymes. The main enzyme in the process of replication is DNA Polymerase.

DNA replication occurs in eukaryotic cells' interphase nuclei. At the S-stage (synthesizing) of the cell cycle, DNA replication occurs prior to mitosis.

Thus, the correct option is C.

For more details regarding DNA replication, visit:

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reptilesimprovements over amphibians​

Answers

The person above me is correct

The ________ is the amount of times a cell can replicate before dying, and in humans it is about ______. A. Hayflick limit, 1000 B. Hayflick limit, 50 C. Division constant, 1000 D. Division constant, 50

Answers

Answer:

The answer is B. Hayflick limit, 50.

Explanation:

The Hayflick Limit is a concept that helps to explain the mechanisms behind cellular aging. The concept states that a normal human cell can only replicate and divide forty to sixty times before it cannot divide anymore, and will break down by programmed cell death or apoptosis.

Leonard Hayflick developed the concept while at the Wistar Institute in Philadelphia, Pennsylvania, in 1965. In his 1974 book Intrinsic Mutagenesis, Frank Macfarlane Burnet named the concept after Hayflick. The concept of the Hayflick Limit helped scientists study the effects of cellular aging on human populations from embryonic development to death, including the discovery of the effects of shortening repetitive sequences of DNA, called telomeres, on the ends of chromosomes.

How green is green energy?

Answers

Answer:

Green energy is important for the environment as it replaces the negative effects of fossil fuels with more environmentally-friendly alternatives. Derived from natural resources, green energy is also often renewable and clean, meaning that they emit no or few greenhouse gases and are often readily available.

After buying a new house by the lake, a family wanted a better view of the water so they could watch the sailboats. They hired a company to cut down the small trees and shrubs that were blocking the view.

Which type of water pollution is most likely

1 . Nutrient
2.sediment
3.toxic
4. Bacterial

Answers

The water pollution that is most likely to occur is Nutrient pollution

Pollution can be defined as the addition of materials or energy (pollutants) to the environment that damages it, making it undesirable or unfit for life. There are different types of pollution which includes:

--> Air pollution

--> Radiation pollution

--> soil pollution and

--> water pollution.

WATER POLLUTION is defined as the type of pollution that occurs when pollutants are being released into water bodies such as streams, lakes, ocean, beaches making it unsafe to use for both human and aquatic life activities. Depending on the type of pollutants, there are also different types of water pollution, these include:

chemical pollution Groundwater pollutionsediment pollutionmicrobiological pollutionnutrient pollutionsurface water pollution and Oxygen-depletion pollution.

NUTRIENT pollution occurs when there is EXCESS of it in the water bodies through organic fertilizer or compost manure from the leaves of the cut down trees and shrubs. When nitrates from the agricultural waste gets into the water body(lake)  it can cause a drastic increase in aquatic plant growth, especially algal growth. This excessive growth can lead to a decrease in oxygen level of water they by affecting the aquatic life of the lake.

Therefore the CORRECT OPTION is A Nutrient pollution.

Option B is wrong because sediment pollution is a type that involves loose sand, clay, silt, and other soil particles that are carried from a site by runoff water not from cut down trees.

Option C is wrong because toxic or chemical pollution is caused by chemicals from industrial wastes.

Option D is wrong because it is caused by natural existing bacteria in the water bodies and are capable of causing disease when ingested. Example Vibro cholera bacteria.

Learn more about water pollution here

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OPEN ENDED QUESTION
Why should you NOT drink seawater even
in extreme survival situations? Please
use at least 3 vocabulary words from the
video.

Answers

Answer:

sea water has lot of salt which is dangerous to human health

Explanation:

i don't seem to see any video.i which I could answer your questions

human kidneys can only make pee (urine) that is less salty than sea water, so, to get rid of all the salt you drank you need to urinate more than you drank. eventually you'll die from dehydration.

please give me brainliest

7. Which substances are produced by the hydrolysis of an
oil?
(1) water and nucleic acids
(2) amino acids and dipeptides
(3) fatty acids and glycerol
(4) glucose and water

Answers

Answer:

3) Fatty acids and Glycerol

Why do i only have one dimple on my left cheek?

Answers

Answer:

A single dimple on one cheek is a rare phenomenon. Transfer of dimples from parents to children occurs due to just one gene. The dimple creating genes are present in the sex cells prior to the process of reproduction. Each parent provides one of these genes to the child.

What is the ratio of surface area to volume for a sphere with the following measurements. Surface area = 432m2, volume = 864m3

Answers

Answer:

the ratio of the surface area to the volume is 1:2

water is an important chemical that dissolves other chemicals into what

Answers

Answer:

A Solution

Explanation:

A substance that is dissolved is a solution

PLEASE HELP FAST PLEASE ASAP HURRY

Answers

Answer:

A number is a correct answer

1. An amoeba is a unicellular organism.

Answers

Answer:

true ameoba is unicellular

Answer:

1.All living things contain cells

2.All living Things respond to stimuli.

Answer From Gauth Math

What is the application of Gene Editing in Primary T Cells?

Creative Biogene CRISPR/Cas9 Platform provides comprehensive gene editing services for various cell lines, especially for primary T cells. With years of experience, our talented scientists have established an efficient assay to edit genome in T cells by CRISPR/Cas9. At CRISPR/Cas9 PlatformCB, we offer a gene knockout service for customer as well as isolation of primary T cell service. Based on our excellent platform, our staff are focusing on supplying the best services and products.

https://www.creative-biogene.com/crispr-cas9/service/gene-editing-in-primary-t-cells.html

Answers

Answer:

Creative Biogene CRISPR/Cas9 Platform provides comprehensive gene editing services for various cell lines, especially for primary T cells. With years of experience, our talented scientists have established an efficient assay to edit genome in T cells by CRISPR/Cas9. At CRISPR/Cas9 PlatformCB, we offer a gene knockout service for customer as well as isolation of primary T cell service. Based on our excellent platform, our staff are focusing on supplying the best services and products.

Which of the following is an example of evolution?
A. Plants colonizing inland areas after developing vascular systems that can hold and transport water.
B. An organism developing immunity to a disease after surviving it.
C. A Chameleon changing color when entering a different environment.
D. An organism dying because it is not adapted to its habitat.

Answers

Answer: B

Explanation: because it adapt to its environment to survive

The development of an organ system like a vascular system over a long period of time in plants is an example of evolution. Thus option A is correct.

What is evolution?

Evolution is a series of events that have taken place in several years to make the species more advanced for the environment due to the introduction of multiple mutations in the genetic sequence.

During evolution, plants have gained the genetic mutation that codes for the vascular system which provide support and transports water in plants. So option A is correct.

Learn more about evolution, here:

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.1.2 The type of control shown in the diagram is known as

Answers

Answer:

which diagram

Explanation:

I hope you understand

What do MSDS sheets do, in your own words

Answers

Answer: The MSDS lists the hazardous ingredients of a product, its physical and chemical characteristics (e.g. flammability, explosive properties), its effect on human health, the chemicals with which it can adversely react, handling precautions, the types of measures that can be used to control exposure

Explanation:

Explain how in glycolysis that the splitting of one glucose molecule results in 4 ATP but there Is only a net gain of 2 ATP.

Answers

Answer:

Explanation:

During glycolisys in cytoplasm, first step involves adding two phosphates to glucose molecule. This step requires the use of two ATP molecules. The next step is splitting 6 carbons glucose into two 3 carbons pyruvates. This step produces 4 ATPs and 2 NADHs. However, since we used up two ATPs during the initial phosphorylation, the net gain is only 2 ATPs

what are oysters used for​

Answers

Answer:

Well most people (like myself) eat oysters in a seafood boil. But you can also find a pear in an oyster and use it for a necklace or bracelet.

Explanation:

Answer:

Eating

Explanation:

how do cells of plant devide without centrioles? explain​

Answers

Answer:

Because the spindle fibers originate outside the nuclear membrane, plant cells can divide without centrioles.

 ~OAmalOHopeO

Exchange of gases in plants occur through:
(A): Stomata.
(B):Lenticels.
(C):Root surface.
(D):Choloroplast.

(1)A,B and D
(2)A,B,CandD
(3)AandC
(4)A,BandC

Answers

Answer:

(A): through the stomata

Seaweed belongs to which of Earth’s spheres?


atmosphere

Answers

Answer:

Biosphere

Explanation:

It is not the atmosphere, because the atmosphere is made up of air. It is the biosphere because it is a plant.

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