100 points!!! please help

Answers

Answer 1

Answer:

You can buy a nutrient solution over the counter, or take some water from a fish tank or pond to supply nutrients. Using water from a pond or fish tank could introduce other contaminants into the growth medium. You can also mix nutrient solutions. The Walne medium is a nutrient mixture that is suitable for most algae

Explanation:

does that hep

Answer 2

Answer: Look it up on quilt

Explanation:

I had that paper

Related Questions

Landslide is an inevitable process in hilly areas. Do you agree with this statement? Why?

Answers

Answer:

In hilly areas, the landforms are generally sloped and heavy rainfall loosens the material. When the right combination of materials, moisture, and steepened slope angle (i.e. increased gravity) makes a hillside unstable, a slide or flow is inevitable.

Explanation:

hope it becomes helpful to you ☺️☺️

good luck

The _______is a large, heavy bird that is rarely seen out of water.

Answers

Answer:

hawk prolly

Explanation:

Can someone help me please !

Answers

it’s the last one!! dna is NOT shaped like an x

Answer:

D: Shaped like and "X"

Explanation:

DNA is not shaped like an X. it is shaped like a double Helix.

yes, dna is shaped like a double helixyes, dna is a large complex polymer of nucleic acidsyes, dna does carry genetic code. NO dna is not shaped like an X

A lawn of Pseudomonas aeruginosa was grown for 24 hours and then scraped completely. The mass of bacteria was suspended in 5ml of sterile saline. An aliquot of the suspension was measured using a Spectrophotometer.

The absorbance or OD600 of the initial suspension was measured at 0.892.

The suspension was serially diluted. In each tube 1ml of the previous dilution was added to 9ml of saline. In the boxes above the tubes write the dilution of that tube as a ratio. The first one is done for you.

Answers

Answer:

Explanation:

2.20 2.60 3.7 3.40

organisms can change in order to adapt to their conditions. what might a plant growing in a dark corner of an otherwise sunny room do to adapt to its conditions and what is this responsce called?

Answers

Answer:

it might maintain homeostasis

Explanation:

Explain why non_living things are important parts of an ecosystem

Answers

Answer:

They can provide energy for living things in the ecosystem.

Explanation:

Non-living things are important in the environment because they provide energy to living organisms. :)

Select from the drop-down menu to correctly complete the statement. Organs combine to form Qoose... Choose... an organ system tissues an organism cells

Answers

Answer:

organ systems

Explanation:

organs make up organ systems

have a great day :D

Answer:

Organ systems

Explanation:

Which kind of microscope is best for observing the movement of a live cell?
A. SEM
B. TEM
C. Compound

Answers

Answer:

Compound

Explanation:

everything else only produces a single image also I've used compound microscopes to observe living things

Answer:

compound is the best to observe movement

Choose the letter of best answer from 2nd column that matches the description in the first column

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1. heredity
2. gametes
3. law of segregation
4. law of independent assortment
5. allele
6. genotype
7. phenotype
8. traits

What are the correct steps for evolution by natural selection?

Answers

Answer:

Explanation:

overproduction. all species tend to have more than two offspring per pair.

variation. all populations have variable traits.

competition. each organism competes for limited resources.

survival of the fittest. those best suited to the environment surive.

reproduction. ...

specification.

If human-caused carbon dioxide emissions remain at current levels, what
are likely future scenarios?
Choose all that apply:

The ocean will continue to warm and become more acidic.

Global temperatures will continue to rise.

Ocean levels will drop. This negatively affects many coastal areas.

Glaciers will become larger. This causes a lot of water to be trapped in an
unusable form

Answers

Global temperatures will continue to rise

Ocean levels will drop. This negatively affects many coastal areas.

A family decides to use their bicycles to get to the mall on weekends instead of driving a car. How is the family helping the environment?
The family is using less renewable resources.
The family is using less non-renewable resources.
The family is causing less fertilizer to enter the water.
The family is causing less trees to be cut down.

Answers

Answer:

The answer is B!

Explanation:

I know this because if the family was using less renwwable resourses it wouldn't be a problem. And if the family was causing less fertlizer to enter the water, that would be helping. So would causing fewer trees to be cut down. So it is all about the process of elimination! Hope I could help

A family decides to use their bicycles to get to the mall on weekends instead of driving a car, and the family is helping the environment by using fewer non-renewable resources, which is in option B.

What are non-renewable resources?

Using bicycles instead of driving cars is an environmentally friendly choice because it helps reduce the consumption of non-renewable resources, such as fossil fuels, as fossil fuels are a limited resource that takes millions of years to form and their use contributes to air pollution and greenhouse gas emissions, which are major contributors to climate change. In addition to the environmental benefits, cycling can also have positive health impacts. Regular cycling can help improve cardiovascular health and reduce the risk of chronic diseases such as obesity and diabetes.

Hence, the family is helping the environment by using fewer non-renewable resources, which is in Option B.

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What causes Eutrophication
2
O Fungal Blooms caused by nitrogen pollution from fertilizers causes low oxygen levels in aquatic ecosystems
O Bacterial Blooms caused by carbon pollution from fertilizers causes high oxygen levels in aquatic ecosystems
O Algal Blooms caused by carbon pollution from fertilizers causes high oxygen levels in aquatic ecosystems
O Algal Blooms caused by nitrogen pollution from fertilizers causes low oxygen levels in aquatic ecosystems

Answers

A. Fungal Blooms caused by nitrogen pollution from fertilizers causes low oxygen levels in aquatic ecosystems

Gavin learns in science class that small objects such as meteoroids and debris can move through space at such high speGavin learns in science class that small objects such as meteoroids and debris can move through space at such high speeds that they can damage or puncture the sides of space vehicles. He decides to design an experiment based on this information. Gavin uses an empty shoe box, a sheet of paper towel, and tape to build a model of a spacecraft. Then, he shoots a pea at the paper towel part of the model using a straw pea shooter. For his first trial, Gavin shoots a 3.0-gram pea at the model. Its speed is measured at 12 meters per second as it leaves the straw. The pea does not break the paper towel, but it bounces back off and lands on the ground.eds that they can damage or puncture the sides of space vehicles. He decides to design an experiment based on this information. Gavin uses an empty shoe box, a sheet of paper towel, and tape to build a model of a spacecraft. Then, he shoots a pea at the paper towel part of the model using a straw pea shooter.

Answers

Answer:

When the pea hit the paper towel, the paper towel applied an equal but opposite force on the pea.

Explanation:

A meteoroid is a piece of stony debris that float in space and move around the sun in different orbits and speeds in the Gavin experiment.

When the Meteoroids enter into Earth's surface?

Meteoroids enter into Earth's surface with a high speed as shooting stars and called meteors. Meteors move through the atmosphere and landed on the surface and it is called a meteorite.

He decides to design an experiment based on this information. Gavin uses an empty shoe box, a sheet of paper towel, and tape to build a model of a spacecraft. Then, he shoots a pea at the paper towel part of the model using a straw pea shooter.

Gavin uses an empty shoe box, a sheet of paper towel, and tape to build a model of a spacecraft. Then, he shoots a pea at the paper towel part of the model using a straw pea shooter. For his first trial, Gavin shoots a 3.0-gram pea at the model.

Therefore, A meteoroid is a piece of stony debris that float in space and move around the sun in different orbits and speeds.

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Why is the frontal part of your brain important?

Answers

Answer: The brain is the vital organ in humans and each part of brain exhibit a distinct function.

Explanation:

The frontal part of the brain is responsible for controlling the cognitive skills, movement of the body, emotions, memory, judgement, sexual activity, linguistic skills, and others. It controls the behavior. It is the overall control panel of the human body. If the frontal lobe is damaged then this can negatively affect the human personality. The person suffers from difficulty in concentrating as well as planning.

Which hormone is responsible for the development of the male secondary sex characteristics?
O estrogen
O progestin
O progesterone
testosterone

The answer is D on 2021 edge :)

Answers

Answer:

Testosterone

Explanation:

The hormone that is responsible for the development of the male secondary sex characteristics is testosterone, which is the last option as testosterone is a steroid hormone produced primarily in the testes of males.

What is the significance of testosterone in males?

Testosterone plays a crucial role in the development and maintenance of male sexual characteristics that have positive influence on body. It induces the development of sperm, and in puberty, it triggers the development of the male secondary sexual characteristics, which affect many aspects of male health and well-being, including bone density, so testosterone is important.

Hence, the hormone that is responsible for the development of the male secondary sex characteristics is testosterone, which is the last option as testosterone is a steroid hormone produced primarily in the testes of males.

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what is the last one?

Answers

Answer:

Se llama: Interphase,la que faltataba.

Tenga buen día!

Which organism on the antarctic food web has the lowest biomass

Answers

[tex]\large\mathcal{ANSWER}[/tex]

The higher up a food chain you get, the lower the biomass of animals (that is number of ... large mammal in the world (after man) is the crab-eater seal, an archetypal Antarctic animal.

The RNA complementary sequence to the following DNA sequence "ATGCGT" is

Answers

Ok every A turns Into an U
Every T turns into an A
Every C turns into a G
And every G turns into a C

So Itd be UACGCA

An increase in the Earth's temperature would _____.
cause less meteors to fall
melt the polar ice caps
freeze water into ice
not affect the Earth

Answers

Answer:

melt the polar ice caps.

Answer:

melt the polar ice caps

Explanation:

an increase in Earth's temperature is global warming. Global warming affects the ice caps. therefore, an increase in temperature will melt the ice caps

Which two of the following organisms are primary consumers in this food web?

Answers

Answer:

no picture to tell us

Explanation:

Use the graph to answer question 1.
Which type of information about rattlesnakes does the bar graph show
(10 Points)

Answers

Answer:

Variation

Explanation:

I took the test

1. Using the following food chain, answer the questions below.
Grass →
Rabbit → Fox
a. What type of organism is the grass?

Answers

Answer: it’s a producer

Explanation: The grass is a producer because it produces food while other animals get food themselves.

The grass is the producer of the food chain. Producers are the organisms in the food chain which produce food in a food chain.

What are the producers in a food chain?

Producers are the organisms which make their own food in a food chain through photosynthesis. Producers are also known as autotrophs. They get energy to work from the chemicals or the sunlight, and with the help of water, these organisms convert the light energy into useable energy that is the chemical energy in the form of sugar or food particles. The most common example of a producer are the green plants.

Producers are any kind of green plants. Green plants make their food by taking sunlight and using this energy to make glucose (carbohydrate). The plant uses this carbohydrate, also called glucose to synthesize many products, such as wood, leaves, roots, and bark. Grasses are also an example of producers in a food chain as they produce glucose.

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Why can't i view a specimen on a slide on the microscope

Answers

Explanation:

Specimen too dark if you place a large and dark specimen on the stage, then the light of the microscope is not able to pass though the object. You will not be able to see anything except a dark shadow without much detail. In this case you must either cut the specimen into thin sections, tear it apart or squash it.

What are the two types and functions of vascular tissue?

Answers

Answer:

Vascular tissue transports water, minerals, and sugars to different parts of the plant. Vascular tissue is made of two specialized conducting tissues: xylem and phloem. Xylem tissue transports water and nutrients from the roots to different parts of the plant, and also plays a role in structural support in the stem. Phloem tissue transports organic compounds from the site of photosynthesis to other parts of the plant. The xylem and phloem always lie adjacent to each other in a vascular bundle

Explanation:

Hope this helped Mark BRAINLIEST!!!

All chromosomes are the same size and they all contain the same amount of genes.

True

False

Answers

Answer:

The answer is false

pasagot ng matino salamatttttt

Answers

Answer:

???????????

Explanation:

Why do bases have to be read in groups of 3?

Answers

Divisible by three" is important because the cell reads a gene in groups of three bases. Each group of three bases corresponds to one of 20 different amino acids used to build a protein. If a mutation disrupts this reading frame, then the entire DNA sequence following the mutation will be read incorrectly.

In order to have a functioning roller coaster, the hills should
as you move through the track

Answers

What? What are we supposed to do

PLEASE HELPP ME !!!! QUICK

Answers

chloroplast: plant
mitochondria: both
cell wall: plant
large vacuoles: plant

Answer: chloroplast are only found in plants.

mitochondria is found in both.

cell wall and large vacuoles are both found in plants

Explanation: Cell wall and large vacuoles are both found in plants

Because plants can't move to get need materials.

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