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2 years ago

!20POINTS!

Biology

1 answer:

elena-s [515]2 years ago

8 0

Answer:

(Leveling off = it stays the same even though it had a increasing period) When looking at the end of the graph you can see that it came back to what it was, which means the rotifers are not increasing anymore. That's because of the carrying capacity (a species' average population size in a particular habitat), and the carrying capacity in this situation is the flask. Therefore the flask has limited space.

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A living thing that makes its own food ( in a food chain )

tester [92]

The only living thing that makes its own food is the plant. So the first step in a food chain is always a plant that makes its own food by sun. :)))
I hope this is helpful
have a nice day

6 0

3 years ago

11.1 The Science of Ecology Lesson 11.1: True or False Name __________________ Class ______________ Date ________ Write true if

tangare [24]

Answer:

See explanation below

Explanation:

1. Biotic factors include sunlight, soil, temperature, and water. FALSE

Biotic factors include animals, plants, fungi, bacteria and protists.

2. Like nutrients and water, energy also recycles through an ecosystem. FALSE

3. An ecosystem consists of all the biotic and abiotic factors in an area and their interactions. TRUE

4. Herbivores are a necessary link between producers and other consumers. TRUE

5. A niche refers to the place an organism lives within its ecosystem. TRUE

6. Dung beetles eat animal feces. TRUE

7. Autotrophs make their own food. TRUE

8. Organisms use 90% of the available energy at each trophic level. FALSE

9. Carnivores include lions, polar bears, hawks, frogs, salmon, and deer. FALSE

Deer is a herbivore.

10. Biomass increases at the upper levels of a food chain. FALSE

11. Producers occupy the first trophic level. TRUE

12. Scavengers include vultures and raccoons. TRUE

13. In a complex ecosystem, it is likely that two different species will occupy the same niche. FALSE

14. The habitat is the role of a species in its ecosystem. FALSE

15. A food web shows how energy flows through an ecosystem. TRUE

4 0

2 years ago

How do both a bird and a reptile reproduce?

Zinaida [17]

The answer is b. They both lay amniotic eggs.

Both birds and reptiles belong to a clade of vertebrates, Amniotes, which lay amniotic eggs. Mammals also belong to Amniotes. Amniotic eggs can remain within the mother after fertilization or can be laid on land. On the other side, <u>an</u>amniotic eggs are usually laid in the water.

3 0

3 years ago

The _____ is a type of regulator protein that binds to a region of dna in the promoter of a gene called the operator and prevent

vivado [14]

The<u> repressor </u>is a type of regulator protein that binds to a region of DNA in the promoter of a gene called the operator and prevents transcription from taking place.

In the field of science, a regulator protein can be described as a kind of protein that affects the transcription of a gene by having an influence on particular DNA sites. The rate of synthesis of various proteins is controlled by the regulator proteins.

A repressor is a kind of regulator protein that prevents the transcription of a particular gene. When the rate of a protein in the body has reached normal, the transcription of the protein needs to be stopped in order for more protein of that kind to be formed. The repressor binds itself to the operator region for the gene, hence stopping the transcription process until the protein is required again.

To learn more about repressor, click here:

brainly.com/question/13799037

#SPJ4

6 0

1 year ago

Mutated sequence:AUGUAAGUUUGGC

Eddi Din [679]

No, because it still codes for valine in this case, but if another nucleotide was changed such as GCA it would code for alanine instead.

8 0

2 years ago