investigate the conditions required for seed to germinate. keep the dishes at room temperature for a week.explain your observations
Dry cotton wool
wet cotton wool
covered with water

Answers

Answer 1

Explanation:

Starting off, the conditions required for a seed to germinate are:

warm temperatures, so that enzymes can act efficiently.water, for chemical reactions to place.oxygen, for respiration.

Observations:

Dry cotton wool: Seeds placed here will not germinate. They will not show any changes since not all the the conditions are met. (There's no water)

Wet cotton wool: Seeds placed here will germinate since all the conditions required for germinations to take place are met.

Covered with water: The seeds will gradually start to expand. The oxygen which is dissolved in water does not enter the seed due to excess water thus preventing germination.


Related Questions

if something needed to enter the cell and couldn't go through the phospholipid bilayer, how else could it enter the cell?

Answers

Answer:

Through facilitated diffusion

Explanation:

A molecule that finds it difficult to enter through the cell membrane's phospholipid bilyaer can be assisted in doing so through a process known as facilitated diffusion.

Ordinary diffusion will not permit the movement of molecules against a concentration gradient or molecules can be prevented from passing the phospholipid bilayer due to their sizes/charges. Within the phospholipid bilayer exists special passages lined with carrier or channel proteins.

These proteins facilitate some molecules that will ordinarily not pass through the bilayer to pass through their special passages. This process is referred to as facilitated diffusion.

the greater the difference between dry bulb and wet bulb, the (blank) the dew point

Answers

The greater the difference between the dry bulb temperature and the wet bulb temperature, the drier the air is. From the air temperature and the wet bulb temperature, the relative humidity of the air can be easily found.

Which organisms convert nitrogen into a form that is usable by humans?
A. Bacteria
B. Omnivores
C. Plants
D. Algae

Answers

Yes it’s C I agree

what will happen to OTHER ORGANS if kidneys malfunction due to certain disease

Answers

Answer:

when your kidneys get affected in a negative way waste products start to build up in your body. It can cause some breathing troubles, poor sleep, weakness in your body,etc.

Explanation:

which of the finches in the
diagram above is most likely to have adapted to an area where the main
food source is large, hard seeds?
А
(4)
B
(3)
с
(2)
D (1)

Answers

Answer:

I1

Explanation:

The sides of a DNA molecule are made up of sugar molecules alternating with ___________ molecues.

Answers

Answer: phosphate

Explanation:

Deoxyribose nucleic acid, which is commonly referred to as DNA simply carries genetic information in an organism. The m DNA is made up of two nucleotides strands.

Nucleotides are simply the DNA's building block. It should be noted that the sides of the DNA consist alternating sugar molecules and the phosphate groups.

Can anyone eXpLaiN what competition, mutualism, parasitism? Please and thank you. <3​

Answers

Answer:

parasitism is when one animal harms another like a parasite. for example mosquitos and humans have a parasitism relationship because mosquitos harm humans. in total parasitism means the relationship in which one benefits and the other is harmed. mutualism is when both benefit and no on is harmed. an example of mutualism is when oxpecker (a kind of bird) eats the bugs off of a rhino, the rhino gets pest control and the bird gets food. and competition is the relationship between organisms that need and search for the same resources in the same place. for example predators of different species search for the same prey.

i hope this helped!!

Explanation:

in total parasitism means the relationship in which one benefits and the other is harmed

mutualism is when both benefit and no on is harmed.

competition is the relationship between organisms that need and search for the same resources in the same place

What are some things humans are doing to stop climate change in the tundra biome?

Answers

Answer:

The correct answer would be- reduced human interference to the habitat.

Explanation:

The Tundra Biome is a biome with an extremely cold region with little precipitation, short growing seasons, very poor nutrients. The Tundra biome is at risk due to global warming, which harms, plants and animal species and the ecosystem of the biome.

low carbon emission by reducing planet-warming pollutants by reducing the fossil fuels  is key to safeguarding Earth's tundra habitats and liting industries are the

Answer: Tundra is the coldest biome on Earth.

Explanation:

It has become sensitive to the trend of global warming the surface air temperature has risen by 0.9 °C. Many regions have experiences the record breaking high temperature in otherwise winter months since 20 century. Tundra natural fires release carbon dioxide gas in the atmosphere. The climate of Tundra can be changed by human efforts. Some activities like reducing the use of fossil fuels which release green house gases like carbon dioxide, and others which warm up the atmosphere, banning the industrial activities nearby regions, and protection of certain species affected by the rising temperature.

Question 9
How do animals get nitrogen that is stored in the soil?
O A) Animals do not take in the nitrogen stored in the soil.
O B) Bacteria change the nitrogen into a gas that the animals breathe.
OC) Plants ab orb the nitrogen from the soil and animals can eat the plants.
O D) The animals can eat the soil and absorb the nitrogen through their digestive system.​

Answers

Answer:

the answer is C

Animals get the nitrogen they need by eating plants or other animals that contain nitrogen. When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water. Bacteria alter the nitrogen into a form that plants are able to use

Organism A can carry out cellular respiration. Organism B can carry out only glycolysis. Which organism will be able to use more of the energy in a molecule of glucose? Explain your answer.

Answers

Answer:

...

Explanation:

It is definitely organism A. Cellular respiration has a net of 32 molecules of ATP while glycolysis only has 2. This is because cellular respiration involves Kreb's cycle which causes the molecules to be constantly reduced and oxidized as electrons move from one molecule to another. This Is known as the electron transport chain. This releases a molecule of ATP every time a redox reaction occurs.

An organism with alleles Dd for eye color can display either the dominant or recessive trait?

Answers

Dominant because the D is the dominant trait and will always be dominant as long as there is a capital letter

PLZZ HELP ME IF I GET IT WRONG I GET A D!!!!!!!!

Answers

Answer:

Meiosis gives AA or BB

but the question is blur

Which statement accurately describes the energy needs for cellular respiration and photosynthesis?
A. Solar energy is needed for cellular respiration but not for photosynthesis.
B. Solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration
C.Chemical energy in the form of glucose is needed for photosynthesis, and solar energy is needed for cellular respiration.
D. Chemical energy in the form of glucose is needed for both cellular respiration and photosynthesis,​

Answers

Answer:

A

Explanation:

what are the steps in cellular respiration?

Answers

There are three main stages in the cellular respiration

1.Glycolysis

Glucose is turned into two molecules of pyruvate. This process takes place inside the cytoplasm and does not require O2

2.Kreb's cycle(TCA cycle)

This proces takes place in the mitochondrial matrix.Electrons are incorporated in the molecules that will be used in the next step.

3.Electron transport chain

This process takes place in the mitochondrial membrane. Energy from the electrons resulted in the krebs cycle is used to pump protons in the inter membranous space to form an electro chemical gradient. This will lead to the oxydative phosphorilation(ATP synthesis)

A ____ surface will absorb all colors.
A green surface will absorb all colors and reflect ____

Answers

Answer:

A Black surface will absorb all colors.

A green surface will absorb all colors and reflect green.

=> Any surface which absorbs all the colors appear to be black because no color is reflected.

=> A surface color is a color which is reflected by it.

For example:

If a surface is red colored, This means that it reflects red color. That's why it appears to be red.

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Hope this helped!

~AH1807

HELP ME PLEASE IM FAILING

Answers

I’m failing too I know how u feel): it’s sad I’m sorry just wanted points Bc I just started this app

answerrrrrrrrrrrrrrrrrrrrrrrrr

Answers

Answer:

What is the question?

Explanation:

4. Would a mutation in a red blood cell be passed on to offspring? Explain your answer

Answers

Answer:

The mutation that takes place in the somatic cells are not carried from one generation to another generation. The mutation in the red blood cells cannot takes place because the red blood cells does not have nucleus in them.

Explanation:

Mutations occuring in somatic cells can not be carried from one generation to another. Mutations within red blood cells are unable to take place because the red blood cells themselves don’t contain a nucleus.

Which phylum contains the largest multicellular forms of algae? In what way are these algae commercially important? Please help me :,)

Answers

Answer:

Phylum Rhodophyta and phylum Ochrophyta.

Explanation:

Phylum Rhodophyta and phylum Ochrophyta are the phylum that contains the largest multicellular forms of algae.  Algae belongs to phylum Rhodophyta also called red algae are used for commercial production of food and gels while on the other hand, algae of phylum Ochrophyta also known as brown algae are used to produce alginates, which are used as food additives in different products and as a thickening material.

help me please, i just need the answers

Answers

Answer:

My Brain ;(

Explanation:

Sandra is heterozygous for eye shape.

What does this mean?

She has two of the same alleles for eye shape, one from each parent.
She has two different alleles for eye shape, one from each parent.
She has only one allele for eye shape, which she received from one parent.
She has two alleles for eye shape, both from the same parent.

Answers

Awnser:

She has two different alleles for eye shape, one from each parent

You always receive 1 allele from each parent, and you're heterozygous, those alleles are different.

Sandra is heterozygous for eye shape, this means she has two different alleles for eye shape, one from each parent. The correct option is b.

What is heterozygous?

Heterozygous means the person who has different alleles from each parent for the same type of character. There are two types of people, heterozygous, which contain different alleles for the same character. Homozygous, which means he has only one allele for one character.

Sandra has two alleles for eye shape, which means she got different eye shapes from her father and mother. She got two eye shapes, and now the allele which is dominant will be shown in her phenotype of Sandra. The other will be recessive.

Therefore, the correct option is b, She has two different alleles for eye shape, one from each parent.

To learn more about heterozygous, refer to the link:

https://brainly.com/question/3258389

#SPJ6

Nuclear energy comes from which part of an atom?
is it nuclear fusion or fission?

Answers

Answer:

Nuclear energy comes from the nucleolus of an atom(the core).  It is a nuclear fusion.

Explanation:

Hope this helps have a good day!

:j

name the organ that is adapted for gaseous exchange in humans

Answers

Answer:

Lungs.

Explanation:

Lungs are the organs that are responsible for gaseous exchange in humans. The lungs absorb oxygen from the air that is required for the process of respiration while on the other hand, carbon dioxide is transferred from the cells to the lungs through blood because carbondioxide gas is a waste material that is produced during respiration so it can be removed from the body with the help of lungs..

how a plant might make the products of photosynthesis (c6h1206 + 602) from the reactants (6c02 + 6h20​

Answers

Answer:

by water and sun

Explanation:

please brilliant me and thank me thanxs

_________ percent of total water withdrawals come from surface water.
85
79
34

Answers

Answer:

79

Explanation:i hope this the answer i looked it up

I am pretty sure is 34 but I can be wrong

HELP!!!!!
Scientists claim that climate change is happening because Earth is warming. They
also claim that humans have helped cause the warming by adding greenhouse
gases to the atmosphere. Other people claim that Earth is not experiencing climate
change because some winter days are still very cold.

Use evidence to evaluate each
claim about climate change.

Answers

Answer:

both right in own way

Explanation:

first;green house gas obviously helps to increase temperature of earth.

second;some winter days are still very cold because of global warming. this is also due to such work which helps to increase temperature of earth as well as climate change.

Answer and Explanation:

first;green house gas obviously helps to increase temperature of earth.

second;some winter days are still very cold because of global warming. this is also due to such work which helps to increase temperature of earth as well as climate change.

Plz help being timed will give brainlest

Answers

2.5g/ml will sink because it has higher density compared to water

0.5g/ml will float because it has lower density compared to water

explain how plants are involved in the carbon cycle

Answers

Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth.
Plants are involved with the carbon cycle because they go through a process called photosynthesis. Photosynthesis is when the plant absorbs carbon dioxide(CO2) and releases oxygen, this is for the plant to grow and live. This is very good for our environment and keeping the air clean.

When would anaerobic respiration be used instead of aerobic respiration?

Answers

Explanation:

When your doing a physical activity like running Anaerobic respiration is used.

As we know that the leaves of plants are waterproof due to cuticle. On the same way, take
some pieces of paper of leaf size and make them waterproof. After completion, put half of these
paper pieces in cold water and half in hot water. Do all the pieces of paper remains waterproof?
Explain your observations and results with justifications

Answers

no because the outside laters become cold or hot and it loses its waterproofing.

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