Describe the alternation of generations in plants. (2 points)

Answers

Answer 1

Answer:

Alternation of generations (also known as metagenesis) is the type of life cycle that occurs in those plants and algae in the Archaeplastida and the Heterokontophyta that have distinct haploid sexual and diploid asexual stages. ... The haploid spores germinate and grow into a haploid gametophyte.

Explanation:

yw

Answer 2

Answer:

Alternation of generations describes a plant's life cycle as it alternates between a sexual phase, or generation and an asexual phase. The sexual generation in plants produces gametes, or sex cells and is called the gametophyte generation. The asexual phase produces spores and is called the sporophyte generation.

Explanation:


Related Questions

Need help with this

Answers

Answer:

her arms are puffy , red and swollen

Explanation:

that is literally a sign :/

Whats The Point Of Life?

Answers

Answer:

to enjoy it to the fullest because God put us here for a purpose

Explanation:

Answer:

this feels like philosophy not biology lol.

Explanation:

It is the moment when a mind latches onto an idea or purpose that an individual finds meaning in their life. This means that it doesn't matter who or where you are or whatever activity you might be doing – if your mind believes it has discovered the meaning of life, then that is the meaning of life for you

what are the differences between antibiotics and vaccines???????........................​

Answers

Answer:

Antibotics are to help treat a sickness while vaccines are to help prevent certain sicknesses... hope that helps a little.

Explanation:

Antibiotics are used to treat severe infection, but Vaccines prevent infections from ever becoming established. Vaccines are right to be used for protection against any future infection. and Antibiotics are effective for stopping the reproduction process of bacteria and do not have any effect on viruses. These are also not to be used for preparing for potential future infection.

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Which of the following are true about cancer? Check all that apply.

Cancer cells display contact inhibition.

Cancer is contagious.

Cancer cells divide uncontrollably.

Cancer can spread around the body.

Cancer comes in many forms.

Cancer affects only the elderly.

Cancer cells invade healthy tissue.

Cancer does not obey contact inhibition.

Answers

Answer: I think these are the answers:

- Cancer can spread around the body.

- Cancer cells invade healthy tissue.

- Cancer cells display contact inhibition.

- Cancer comes in many forms.

- Cancer cells divide uncontrollably.

and I think "Cancer does not obey contact inhibition." is one too... I hope this helps! :D

Explanation:

Cancer cells:

• Divide uncontrollably

• Comes in many forms

Invade healthy tissues

• Does not obey contact inhibition

What is cancer?

Cancer is a diseased condition in which uncontrolled cell division takes place.

Cancer are of two main types: benign and malignant.

Benign tumours are localized to a particular organ and thus can be removed through chemotherapy or surgery.

Malignant tumours spread to body parts through blood stream and attack the healthy cells. This property of metastasis is unique to cancer cells.

Normal cells show their contact with the adjacent cells. In cancer, contact inhibition is lost and so they divide in an uncontrolled manner.

Breast cancer, leukaemia, lung cancer etc are some of the examples of cancer.

Cancer is detected through tissue biopsy. X-Rays, CT-Scan, MRI are some other techniques that detect cancer in the body.

Cancer can be treated if diagnosed early. Radiotherapy, chemotherapy and surgical intervention are the part of cancer treatment.

Therefore, cancer is considered a serious medical complication.

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The image below shows a small bean sprout what does the sprout need to grow into a healthy plant?

Answers

The sun=photosynthesis
Or water to be able to live but the sun helps it grow which is photosynthesis

1. View the cartoon image at right. You’ve been volunteering in a kindergarten classroom, and one of the children asks about the biological levels of organization that you are studying (in random order): tissues, cells, organ systems, organs. From smallest to largest, explain these levels as they relate to the cartoon image below. Remember, it is unlikely the children in this kindergarten class have taken an advanced science course yet so keep this in mind when making your explanation.

Answers

Answer:

May you please include the image, so I can help you?

Explanation:

I need visuals.

What would happen if no one obeyed
stop signs, traffic lights and speed
limits? Chaos! And, no doubt, someone
would get hurt. Luckily there are
"Rules of the road” in place to keep
drivers safe. Now think about how we
can keep ourselves and others safe
from labels, prejudice and stereotypes.
Come up with your own "Rules of
Respect" that will keep you and others
safe from the harm that labels,
prejudice and stereotypes can do.

Answers

Answer:

1.  Never judge someone by appearance, particularly color or outfit/tattoos

2. Always treat someone with respect as if they are your friend

3. Never presume someone's financial conditions based off of their lifestyle

With these rules, we could theoretically be one step closer to equality.

Explanation:

Jackson says, “The really scary things though are the physical, chemical, oceanographic things that are happening.” What does he mean by this?

Answers

I think it is water pollution, fossil fuels, air pollution, carbon dioxide and acid that are damaging our world

Oceanography includes the oceans and sea depicting and analysis or change in the characteristics of water bodies.

By the statement, scary things are happening to the oceans by Jackson means that:

The oceans and aquatic lives are suffering from climatic changes and is undergoing immense physical and chemical changes.

The addition of unwanted wastes, dumps and chemical spills in oceanic bodies are altering the chemical and physical attributes of the water. The habitants of water like fauna and flora are suffering a lot of loss due to changes.

The involvement of human activities has increased water pollution and many other kinds of pollution. Overfishing, oil spills and dumping of waste in water bodies have altered the natural characteristics of water.

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The primary producer at a deep sea vent would be
A.
spider crabs
B.
chemosynthetic bacteria
C.
tube worms
D.
photosynthetic bacteria

Answers

Answer:

spidercrabs

Explanation:

it is because they live under the sea

A. The answer is A
Hope this helps

what is the "Cell (plasma) membrane"? Question 1 options:

the structure that forms the surface of a cell separating its contents from the outside world.

a type of cell without a membrane-bound nucleus and without membrane-bound organelles, considered by scientists to be a more primitive type of cell than the more complex eukaryotic cells.

a small organelle, made of RNA and protein and found in both prokaryotic and eukaryotic cells, that forms proteins from amino acids .

a cell organelle that is essential to cell functions including reproduction, contains the cell's chromosomes, and is enclosed by a membrane.

Answers

Answer:

The first option

Explanation:

The cell membrane is the structure that forms the surface of a cell separating it's contents from the outside world.

Answer:

i think it is a type of cell without a membrane

Explanation:

i'm not sure sorry hawk i will look more into it to help through

What the effects of sunlight on the aquatic life inhabiting your body of water on the Indian ocean?

Answers

Answer:

Any living creature that lives beneath the Pacific surface will absorb the sunlight for nourishment. If the sun banishes all the living organisms (plants and algae) will suffer due to the lack of photosynthesis. The sun has a massive effect on the aquatic life in the oceans, lakes, or any body of water; including the Pacific Ocean.

Explanation:

:)

1)) The average depth of a lake is 10 meters. Do you think sunlight acts a limiting factor the same way it does in the ocean? Why or why not?

2)An area with a high population of crayfish in local lakes and rivers has begun experiencing acid rain, rain that has a pH of 3.0 - 4.0. Predict how this rain will impact the crayfish population.

Answers

Answer:

No.

Explanation:

No, the sunlight does not act as a limiting factor the same way it does in the ocean because the lake has lower depth as compared to ocean which is very deep i. e. more than 3000 meters where sunlight does not reach and we know that sunlight is very important for the survival of plants. Sunlight reach in the water about 1000 meters so plants can survive and do photosynthesis due to its low depth.

Acid rain will impact the crayfish population because acid rain decreases the pH of water and this lower pH causes death of the crayfish and also the food of crayfish and thus lower the population of crayfish due to unavailability of food..

Which timeline shows the correct order of contributions made to the discovery of DNA?
(Options are in screenshots below!)

Answers

Answer:

The correct answer is B.

Explanation:

DNA was discovered in 1800, and then scientists studied DNA with X-Rays. After a while, scientists published a 3D model of DNA, and shortly after, scientists decoded DNA genes. So the answer is Option B.

Hopefully, this helps! :D

Ask your question below!

In the 1800s first the discovery of DNA was done, than the X-ray study of the DNA was done, after that the 3-D model of the DNA was developed, and finally human genetic code was decoded in the 1960s.  

• The DNA was initially identified in the late 1860s by Friedrich Meischer, a Swiss chemist.  

• After that Rosalind Franklin and Wilkins studied DNA with the help of X-ray diffraction tool.  

• In the 1953s, the 3D model of the DNA molecule was discovered by Watson and Crick.  

• Finally in the 1960s, Nirenberg and his colleagues at the National Institutes of Health deciphered the human genetic code.  

Thus, the second timeline shows the correct order of contributions made to the discovery of DNA.  

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what makes the red blood cell special, why is it special, how is it different than other cells, what is its primary function. (Minimum 5 sentences)....Please help

Answers

Answer:

not sure If I can make 5 sentences but I can help by telling you that it delivers oxygen and energy throughout the body through the bloodstream which is a given but there ya go

PLEASE ANYONE I NEED HELP!!!!

what is the net ionic equation and what are the spectator ions of Bel2(aq) + PbSO4(aq) = BeSO4(aq) + Pbl2(s)

Answers

Explanation Worked out

Who knows how to do this pls answer it 100% smart pls tell me the correct answer smart people

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Answer:her arm is puffy, red, and swollen

Explanation:

What type of new information is being used to classify organisms?

Answers

Answer:

DNA is the evidence that biologist use to identify new type of organisms

Explanation:

Taxonomy is the system biologist use to name living things

Most bacterial cells have a cell membrane and a cell wall.. true or false

Answers

Bacterial cells lack a membrane-bound nucleus. A cell wall is found in bacteria, plants, fungi, algae, etc...

Answer:

true

Explanation:

What happens when magma cools during the rock cycle? Igneous rock is formed. Metamorphic rock is melted. Sediments form sedimentary rock. Metamorphic rock forms sediments.

Answers

Answer: igneous rock is formed

Explanation:

When magma cools down during the rock cycle then igneous rock is formed. Thus, the correct option is A.

What are Igneous rocks?

Igneous rock is one of the three main rock types, while the other being sedimentary and metamorphic rocks. Igneous rocks are the rocks formed through the cooling and solidification of magma or lava from volcano. The magma can be derived from partial melts of existing rocks in either a planet's mantle or the crust.

Lava from the volcano cools to form volcanic rock as well as volcanic glass. This magma can also extrude into Earth's atmosphere as part of a violent volcanic explosion. This magma then solidifies in the atmosphere to form volcanic rock called as tephra. In the atmosphere, tephra is more often called as volcanic ash.

Therefore, the correct option is A.

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Which statement BEST explains why few plants grow on a tropical rain forest floor?
A.pollution
B.climate change
C.habitat destruction
D.tectonic plate motion

Answers

Answer:

c            

is correct!

An enzyme works only with a specific substance like a

Fork and knife
Key and lock
On and off switch
A dimmer switch

Answers

Answer:

A dimmer switch

that the answer

Moonlight is really ____________ being reflected

Answers

Answer:

Sunlight being reflected

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Using the table on the right as a guide, answer the following questions about light-independent reactions.

Describe the process of light-independent reactions.
What are the products of light-independent reactions?

Answers

Answer:

Light reactions harness energy from the sun to produce chemical bonds, ATP, and NADPH. These energy-carrying molecules are made in the stroma where carbon fixation takes place. The light-independent reactions of the Calvin cycle can be organized into three basic stages: fixation, reduction, and regeneration.

Answer:

It uses ATP and NADPH and converts it into glucose and other carbohydrates; glucose and other carbohydrates

Explanation:

EDGE 2020

Who knows how to do this?

Answers

Answer:

respritory and immune

Explanation:

took the test

Answer:  6. the first one ,the third one ,

Explanation:

7.immune or respitory since her breathing is fast

translation is the process by which mrna is translated into a sequence of amino acids

Answers

Answer:

Translation is the process by which mRNA is translated into a sequence of amino acids during protein synthesis.

species of bacteria can evolve more quickly than species of mammals because bacteria have--

Answers

higher rates of reproduction

Answer:

higher rates of reproduction

and no back bones

Explanation:

What is a reasoning statement?

Answers

Answer: A reasoning is a form of logical thinking that uses related observations to create a general conclusion.

Explanation:

A life scientist such as a biologist first makes observations and records them.

What is a habitat?
A) an area of land
B) a community
C) a niche
D) a population

Answers

Answer:

the answer is a niche

Explanation:

What is different about normal cell division and cancer cell division?

Answers

Answer/Explanation:

Normal cell division is a very controlled process.

There are several checkpoints where the cell ensures the cell is:

receiving the correct signals to dividethat the environmental conditions are favourable for the cell to dividethat there is no damage to the DNA.

However, cancerous cells proliferate uncontrollably. This is because they can bypass the checkpoints and divide without the necessary signals. This means cell division keeps occurring even when conditions are unfavourable and the DNA is damaged.

define hypogeal germination and Epigeal germination​

Answers

Explanation:

Hypogeal germination is when the plant is germinated under the ground. An example of this would be the pea plant.

epigeal germination is the opposite of that. Germination takes place above the ground. normal bean plants have epigeal germination

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