Science 6. Grade 6. Can anyone answer these Science questions soon as possible? I want the answers correct- 100% accurate.Are the following statements below True or False?

There are many food chains within a food web.

Food chains in an ecosystem have consumers but no producers.

A food chain always begins with a producer because these organisms are the source of energy for other organisms in an ecosystem.

Answers

Answer 1

Answer: #1. true . #2. yes that is true . #3. no it don't start with a producer it starts with an organism

Answer 2

Answer: True

False

True

Hope this helps! ; )

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If your lac operon looked like the image below, which of the following can you infer?You had cereal and milk for breakfast.
Your lac operon is expressed.
You have not consumed lactose from dairy recently,
None of the above.

Answers

Answer:

You have not consumed lactose from dairy recently

Explanation:

According to the diagram, there is a represssor element in the regulatory region of the operon. This repressor is blocking the RNA polymerase, that is bound to its promoter region upstream of the genes, from transcription. The repressor is mostly the lac repressor that switches of the operon in the absence of lactose.

What might be a symptom of a person whose vein valves are not functioning properly and are causing fluid it flow away from the heart?

Answers

Considering answers;

-fever

-constricted veins

-swollen veins

-confusion

Answer;

Swollen veins

Swollen veins might be a symptom of a person whose vein valves are not functioning properly and are causing fluid it flow away from the heart.

Explanation;

Valves are structures that are found in the circulatory system both in the heart and the veins.

They function to prevent the back flow of blood.

They do so by ensuring the continuous flow of blood in one direction.

If the valves are not functioning properly it may lead to various effects such as swollen veins due to the back flow of blood which may lead to the pooling of blood in the extremities.

The answer is C. swollen veins.

Good luck :)

Non Examples of asexual and sexual reproduction

Answers

Answer:

Some plants and fungi go through the asexual reproduction process. Mammals go through the process of sexual reproduction.

Explanation:

Asexual reproduction is the simplest way for one individual to give birth to another. In this type of reproduction, the next generation acquires the same characteristics that their parents have, since they receive equal copies of the DNA, that is, they are clones. In this one, there is no encounter of gametes nor fertilization. On the other hand, sexual reproduction consists in the union of the male and female gametes, forming the zygote that will give rise to a new being. It is through reproduction that genetic information is transmitted between generations. Each originated individual inherits the genetic material from his parents.

A Chameleon and a Camel

Light sensitivity in egulena is provided by the

Answers

Answer: eyespot

Explanation:

Answer:

Eyespot

Explanation:

Light sensitivity in egulena is provided by the eyespot.

What division do the simplest plants belong to?

Answers

Algae are the simplest plants belonging to the division. All the Algeas have chlorophyll and are capable of making their own food

Anderson and his lab partner each held a tuning fork, 4440 Hz, in their hands. Anderson tapped his tuning fork with a mallet and they listened to the sound it made. "Wait a minute!" exclaimed Anderson's partner. "My tuning fork is vibrating too!" Sure enough, both tuning forks were vibrating although only Anderson hit his with the mallet.what wave property caused the second tuning fork to vibrate?
a) diffraction
b) interference
c) refraction
d) resonance

Answers

Resonance: the effect of an object vibrating at a specific. preferential frequency

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