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Ivahew [28]
4 years ago
7

When is gene expression blocked in the lac operon system?

Biology
2 answers:
PilotLPTM [1.2K]4 years ago
8 0
The repressor protein blocks the genes from making mRNA.
elena-s [515]4 years ago
4 0

The depressor protein blocks the genes from making mRNA.

Absolutely sure!

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Natural selection favors
Effectus [21]

Answer:

D, organisms that survive long enough to reproduce.

Explanation:

C and D are the best answers. Adaptations and skills other than speed and strength contribute to an organism's survival too, so that means it isn't C. Natural Selection is about how an organism must have useful traits to survive to reproductive stage and  successfully reproduce, so it would definitely be D.

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3 years ago
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When sweat cools on the skin, removing heat and cooling the body, what process is occurring? A. Parasympathetic nerve conduction
zavuch27 [327]

Answer:

Homeostasis

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Temperature homeostasis

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3 years ago
Using the table on the right as a guide, answer the following questions about light-independent reactions.
Eddi Din [679]

The products of light-independent reactions include the following:

  • Glucose
  • NADP+
  • Water (H₂O).

<h3>What is photosynthesis?</h3>

Photosynthesis can be defined as a biological and chemical process through which living organisms such as green plants (autotrophs) convert light energy (sunlight) received from the Sun into chemical energy, in order to enable them make their food.

<h3>The stages of photosynthesis.</h3>

In Science, there are (2) main reactions that make up the process of photosynthesis and these include following:

  1. Light-dependent reactions.
  2. Light-independent reactions.

<h3>What are light independent reactions?</h3>

Light independent reactions can be defined as a type of photosynthetic reaction that occurs in the stroma of the chloroplasts and it requires the following necessary inputs:

  • Carbon dioxide
  • Adenosine triphosphate (ATP)
  • NADPH

Additionally, NADPH, adenosine triphosphate (ATP), and oxygen are the outputs (end products) of photosynthesis.

In this context, we can reasonably infer and logically deduce that glucose, water (H₂O), and NADP+ constitute the products of every light independent reactions.

Read more on light-independent reactions here: brainly.com/question/2248882

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1 year ago
Disscuse 2 causes and 2 effects of deforestation.
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Causes:
1. the increase in population and growth of the human race
2. the need for housing and industrial advancements

effects:
1. loss of habitat for wildlife
2 loss of trees for oxygen
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How do we smell a gas​
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Answer:

you sniff it with ur nose

7 0
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