A zygote is the result of which life cycle process in spermatophytes?
a) germination
b) fertilization
c) pollination
d) cell respiration

Answers

Answer 1
B fertilization

Hope this helpsssss

Related Questions

What characteristics apply to gymnosperms? (Choose all that apply)
use seeds to reproduce
use spores to reproduce
have vascular tissue
have cones as reproductive structures

Answers

Answer:

Have cones as reproductive structures.

Have vascular tissue.

Explanation:

The gymnosperms have vascular tissue and have cones as reproductive structures.

What are gymnosperms?

The gymnosperms are woody like plants having a  cone shaped structure,  bear no flowers, no fruits but bear seeds; The seeds are with out coat and they are not covered by the fruit wall.

Gymnosperms produce seeds which are not enclosed in an ovary, while in Angiosperms the reproductive organs are the flower, they may  involve in double fertilization resulting in a diploid zygote, and a triploid endosperm.

Gymnosperms  produce seeds and fruits from their flowers, the flowers in gymnosperms helped in the propagation of the plants, it attract pollinators and attracted seed to dispersers, gymnosperms became dominant among plants.

The modification of the gymnosperm includes Modified leaves, Sunken stomata, Pointed and thick cuticle leaves, Less transpiration rate.

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Which statement about the structure of organic molecules is true
1. DNA contains fatty acid chain
2. Lipids are composed of Amino acids
3. Proteins are composed of nucleotides
4. Carbohydrates contain monosaccharide units

Answers

Answer: The answer is D

Explanation:

The statement which is true about the structure of organic molecules is as follows:

Carbohydrates contain monosaccharide units.

Thus, the correct option for this question is D.

What do you mean by Organic molecules?

Organic molecules may be defined as those molecules that are correspondingly made of carbon and hydrogen. It can also include other elements like oxygen, sulfur, nitrogen, etc. It must contain carbon atoms covalently bonded to hydrogen atoms (C-H bonds).

DNA possesses monomeric units known as nucleotides. Lipids are the derivatives of fatty acids. While proteins are composed of building blocks that are known as amino acids.

On the other hand, carbohydrates are derived from monosaccharide units that are togetherly held by glycosidic linkage.

Therefore, carbohydrates contain monosaccharide units is a statement that is true about the structure of organic molecules. Thus, the correct option for this question is D.

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PLEASE HELP ME PLEASE :)

Answers

Answer:

6CO2 + 6H2O → C6H12O6 + 6O2  =  A+B--->C+D

Abrianna placed a ball of clay on a table. She flattened it into the shape of a disc. She turned to Hanna and said, "Look, I have changed the weight of the clay!" Hanna responds, "No, the weight has not
changed. The mass has." How would you respond? Write your response in your
Science Journal.

Answers

Answer:

Explanation:

Both would be right if some of the clay was removed.

Since there is no mention of anything being removed, both are incorrect. There is always the same mass when the shape has been altered.

Punnet squares help Fill in the Punnett square for breeding a female chocolate lab (bbEE) with a male black lab (BbEE). bE bE bE bE BE BE bE bE

Answers

Answer:

See the answer below

Explanation:

First, we need to identify the gametes that would be produced by each gene.

bbEE will produce bE, bE, bE, bE.

BbEE will produce BE, BE, bE, bE.

These gametes will then be aligned at the horizontal and vertical side of the Punnet's square to give the genotype of the offspring as shown in the attached image.

Answer:

bbEE will produce bE, bE, bE, bE.

BbEE will produce BE, BE, bE, bE.

Explanation:

( I need some sort of help on my asignment I’m a bit young and I just really need to pass this the question is )
What’s the purpose of seeds?

a. Reproduce
b. Feed plants
c. Look nice
d. Drink water

Answers

Answer:

A reproduce

Explanation:

Answer:

I think it is Reproduce.

Explanation:

I looked it up on google hope it helps

Body waves are seismic waves that travel through the middle of the Earth; surface waves are seismic waves that travel along the surface of the Earth. * True False​

Answers

Answer:

True

Explanation:

It is correct that body waves travels through the middle of the earth and surface waves travels along the surface.

Seismic waves are elastic waves that are produced when the earth is disturbed. There are two categories of the wave which are body and surface waves. Body waves are the P and S - waves that travels through the earth. Surface waves are the love and Rayleigh waves which moves on the surface.

Answer:

False on Edg 2022

Explanation:

Difference between direct and indirect effect

Answers

Direct effects, as the name suggests, while not manipulated or communicated by a third party, deal with the direct influence of one entity on another. Indirect effects can be described as the influence, mediated or passed on by a third, of one organism or species on another.

Which of the following contains chemical energy?

A. Light
B. Height
C. Food
D. Motion

Answers

Answer:

c.food

Explanation:

hope it helped you

Food contains chemical energy. Thus, the correct option is C.

What is Chemical energy?

Chemical energy may be defined as the energy of chemical substances that are evolved when they undergo a chemical reaction and transform into other substances.

Light and motion contain kinetic energy, while Height contains gravitational energy.

Food contains chemical energy which is released at the time of digestion that involves the breakdown of bonds between the particles.

Therefore, the correct option for this question is C.

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What are 2 things that can be done to encourage sustainable resources for Earths human population

Answers

Answer:

Educate them and show the benefits of sustainable resources

Explanation:

enzymes are an example of which main class of organic compounds.
(carbohydrates, lipids, proteins, or nucleic acids

Answers

Answer:

Proteins

Explanation:

Enzymes are an example of a class of organic compounds called proteins.

PROTEINS:

Proteins are one of the four major biological molecules in nature (others being carbohydrates, lipids and nucleic acids).

Proteins play vital roles in living organisms, which includes regulating biochemical reactions, repair of structures etc.

Enzymes are biological catalysts that helps to regulate the rate of a reaction. Enzymes are proteinous in nature i.e. they are made of proteins.

Therefore, enzymes are an example of a class of organic compounds called proteins.

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Give an example of how Eubacteria can be beneficial. Explain. Please help me. ​

Answers

Answer:

Some bacteria are good for you, including the bacteria in your digestive system, or gut. These bacteria help to break down food and keep you healthy. Other good bacteria can produce oxygen are used to create antibiotics. Bacteria are used in food production to make yogurt and fermented foods.

An example of how Eubacteria can be beneficial is that these bacteria fix nitrogen for soil that can be used by living beings.

What are eubacteria?

The bacteria in your gut and digestive tract are among the beneficial bacteria. These microorganisms aid in the digestion of food and promote good health. To make antibiotics, other beneficial microorganisms that can also produce oxygen are employed. Yogurt and other fermented foods are produced using bacteria in the food industry.

Oxygen, carbon, nitrogen, and phosphorus that living things like animals and plants cannot use can be converted by eubacteria into usable forms. In the soil, they fix the nitrogen that is present in the air.

Therefore,  Eubacteria can help the environment by fixing nitrogen into the soil so that living things can use it.

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Why might a company decide against using hydroelectric Energy as an alternative energy source

A. Gathering it requires pulling from unclean sources

B. Gathering it creates noise pollution for surrounding areas

C. Gathering it releases carbon dioxide gases into the air

D. Gathering it can have a negative affect on natural habitats

Answers

The company's decision against using hydroelectric Energy as an alternative energy source might be Gathering it can have a negative affect on natural habitats.

Why is hydroelectric power not a good energy source?

Hydropower can also cause environmental and social problems. Waterholes drastically change the landscape and rivers they are built on. Dams and reservoirs can decrease river flows, raise the water temperature, degrade water quality and cause sediment to build up. This has negative impacts on fish, birds and other wildlife.

Thus, the correct option is "D".

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If your body is capable of making only certain amino acids, how do we get the essential amino acids we need?

Answers

Answer:

Essential amino acids cannot be made by the body. As a result, they must come from food. The 9 essential amino acids are: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.

Explanation:

Essential amino acids are available to the body through diet.

What are amino acids?

Amino acids are the key units in protein formation. They are the building blocks in determining protein structure.

Amino acids are amphoteric molecules which means that they contain dual functional group - amino and carboxylic acid.

There are twenty different amino acids present. Amino acids are classified into four main groups:

Non polar amino acidsPolar but charged amino acidsNegatively charged amino acidsPositively charged amino acids

Amino acids are crucial in the determination of genetic code. They are also important in transcription and translation process.

Amino acids are joined together in large number and form polypetides through peptide bond formation.

Based on the nutritional requirements amino acids are classified into two types:

Essential amino acids - amino acids which cannot be synthesized by the body and thus need supplementation through diet.Non essential amino acids - amino acids which can be synthesized by the body.

Therefore, amino acids are important in the biochemistry of proteins and several biochemical processes.

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Question 16 of 30
After a hurricane, a small group of seabirds flew off course and formed a new
population. Gene flow between the new population of seabirds and the
original one stopped, and the two populations evolved differently.
What process first caused the seabird populations to evolve differently?
A. Natural selection
B. Genetic drift
C. Reproductive isolation
D. Geographic isolation

Answers

Answer:

It’s B genetic drift

Explanation:

The group of birds separated from one another which led to different evolution for both groups of birds because of the new environment

What is a boundary in which two plates move apart from each other called?

Answers

Answer:

A divergent boundary!

Explanation:

Hope this helps! <3

100 POINTS !
Match the numbers on the picture of the cell with the words below.

Cytoplasm
Golgi Apparatus
Nuclear Pores
Rough Endoplasmic Reticulum
Vacuole
Cell Membrane
Ribosome
Nucleus
Nucleolus
Smooth Endoplasmic Reticulum
Chloroplast
Chromatin
Mitochondria
Nuclear Envelope
Microtubule
Cell Wall

Answers

Answer:

1. Nucleus

2. Nuclear Envelope  

3. Nucleolus

4. Chromatin

5. Nuclear Pores

6. Ribosome

7. I don't know sorry

8. Smooth Endoplasmic Reticulum

9. Cytoplasm

10. I don't know sorry

11. Cell wall?

12. Mitochondria

13. I don't know sorry

14. Rough Endoplasmic Reticulum

15. Ribosome?

16. I don't know sorry

Explanation:

I don't know some of these but I hope this helps! :D

Two identical twins live in the same city; one smokes and one doesn’t. The one who smokes develops lung cancer. What is the best reason for this?



A.
mostly genetics factors

B.
genetics and environmental factors

C.
mostly environmental factors

D.
it was not related to their genetics or environment

Answers

c. mostly environmental factors

Look at the images. Considering the properties of prokaryotic and eukaryotic cells you've learned about, what kind of cell is this?

Answers

Answer: 1. prokaryotic 2. eukaryotic 3. eukaryotic 4 prokaryotic

Explanation:

Cell type A is a prokaryotic cellCell type B is an eukaryotic cellCell type C is an eukaryotic cellCell type D is a prokaryotic cell

WHAT ARE EUKARYOTES AND PROKARYOTES?

Eukaryotes are living organisms that possess a membrane-bound nucleus while prokaryotes are living organisms that do not possess a membrane-bound nucleus or organelles.

From the image attached to this question;

Cell type A is a bacterial cell with no visible nucleus present. Hence, it is a prokaryotic cell.

Cell type B is a plant cell with nucleus, cell wall and chloroplast. Hence, it is an eukaryotic cell.

Cell type C is a human cheek cell with visible nucleus. Hence, it is an eukaryotic cell.

Cell type D is a vibrio bacterial cell with only a visible cell wall. Hence, it is a prokaryotic cell.

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HELP LOTS OF POINTS HURRY IM ALMOST OUT OF POINTS!!!
Which of the compounds would the plant require as outputs for photosynthesis? Click on all options below that are considered outputs/products (things the plant exports during photosynthesis). (Choose up to three. Choosing all options will result in an incorrect answer)
Oxygen
Carbon Dioxide
Water
Glucose
Sunlight

Answers

Oxygen is released into the air and glucose is a by product.

Which characteristics or structures from the list are found in plant cells? Select all that apply.

nucleus
chloroplast
irregular shape
cell wall
tiny storage vacuoles
cell membrane
Plz help :X

Answers

Answer:

nucleus,chloroplast,cell wall, cell membrane

Explanation:

Development and the specialization of cells happens in unicellular organisms

Question 9 options:
True
False

Answers

I think that question is true don’t but not sure

Which of the following best describes a population?

Answers

Answer:

Explanation:

A number of things/people that populate on place

Which of the following is not the wave of the future in the medical field?
O robots
O cameras
O computers
O engines

Please help!!!!!!

Answers

I think it’s engines
I believe the answer is D

What theory’s/ideas challenge natural selection? In other words, what disproves natural selection?

Answers

Answer:

Natural selection needs some starting material, and that starting material is heritable variation. For natural selection to act on a feature, there must already be variation (differences among individuals) for that feature. Also, the differences have to be heritable, determined by the organisms' genes.

All non-harmful environmental agents that a pregnant woman ingests aid in the development of the fetus.
Please select the best answer from the choices provided
T
F

Answers

Answer: False

Explanation:

Just because an environmental agent is not harmful does not mean that it is beneficial therefore not all non-harmful environmental agents that a pregnant woman ingests aid in the development of the fetus.

This is where the Placenta comes in. It filters out the agents and nutrients that are not needed and passes only the relevant ones to the fetus thereby ensuring that not all non-harmful agents pass through.

Answer:

False

Explanation:

Edge 2022

Clay 30%, Silt 60%, Sand 10%
What would it be classified as?

Answers

The answer is Silty clay loam.

Aside from solar energy, what else could provide electrons?

Answers

Electrical energy is delivered by tiny charged particles called electrons, typically moving through a wire. Lightning is an example of electrical energy in nature.

Small charged particles called electrons, which normally flow via a wire, provide electrical energy. An illustration of electrical energy in nature is lightning.

What are the different sources of electron?

The majority of free electrons are created with minimal kinetic energy and just disperse through the atmosphere, participating in the random thermal motion of every atom.

With enough kinetic energy, some free electrons are created that can lead to further ionization and excitation.

The source of electrons is a filament, or cathode. Usually, it is a tungsten wire in the form of a hairpin.

The surrounding cathode cap is given an accelerating voltage (determined quantity of negative high voltage). The filament is then exposed to a tiny emission current to liberate electrons.

Therefore, aside from solar energy, electron are produce.

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The inner and outer planets, Mercury and Venus, Mars, Jupiter and Saturn, were identified by ancient Babylonian astronomers between 2000 to 1001 BC. It was not until the 1600's that Galieleo and Cassini, using telescopes, discovered what? (can not find science)

Answers

A split on Saturn’s rings. It’s called the “Cassini Division” I believe.

Answer:

The moons of Jupiter and Saturn

Explanation:

I did it on usa test prep

How is biodiversity regulated in a system?

Answers

Answer & Explanation:

Biodiversity is regulated primarily by weather in addition to many other factors. Weather changes can cause droughts or flooding. Weather often pushes main species to migrate and therefore cause new biodiversity, indirectly the migration of one species into a new region could cause that new species to consume the already thriving species already in existence which then could reduce the value of species diversity in that region and throw off the pre-existing ecosystem.

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