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IrinaK [193]
3 years ago
8

Which compound was abundant in Precambrian Earth’s oceans, before complex life evolved on Earth?

Biology
2 answers:
LekaFEV [45]3 years ago
5 0
Carbon dioxide is correct
Verdich [7]3 years ago
5 0

Answer:

dissolved carbon dioxide

Explanation:

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What can scientists look at to help them prove that our modern-day animals evolved from extinct animals?
Dmitriy789 [7]

Answer:

Their skeletal structure and possibly how they look but usually not. You can also look at the way they live and the biomes they live in.

Explanation:

8 0
3 years ago
How are bacteria able to regulate their genes by two types of operons?
Aleks04 [339]

Operons are the functional units of transcription and genetic regulation. These are found in bacteria and their viruses where genes coding for functionally related proteins are grouped along the DNA.

The two types of operons are- inducible and repressible.

They regulate the genes as in negative inducible operons, a regulatory repressor protein is bound to the operator. It prevents the transcription of the genes on the operon. If positive inducer is present, it binds to the repressor and changes its conformation so it is unable to bind to the operator.


5 0
3 years ago
Female moths release a type of chemical that attracts males, even from a distance. Which is the name of this chemical substance?
34kurt
<span>The correct answer is Pheromone. This isn't only common to moths, but mostly to all animals. Animals release pheromones to attract each other and procreate to ensure that the species continues existing. Sugars and hormones are completely different things and are unrelated to sexual attraction in animals.</span>
8 0
3 years ago
T who is at 41 weeks gestation is concerned when the primary care provider decides to induce labor. which reason does the nurse
DochEvi [55]

Risk for placental dysfunction.

The reason the nurse should explain as the most important need for this procedure is Risk for placental dysfunction.

  • The main goal of inducing labor in post-mature fetuses is to reduce problems caused by placental malfunction.
  • The placental function declines with post-maturity, altering food and oxygen transport and raising the risk of hypoxia and hypoglycemia during the start of labor.
  • The main justification for labor induction is this.

<h3>What is placental dysfunction?</h3>
  • A pregnancy problem known as placental dysfunction occurs when the placenta, which is responsible for supplying nutrients and oxygen to the baby' bloodstream, is unable to adequately nourish the growing fetus.

<h3>Why does the placenta malfunction?</h3>
  • If you smoke or use some types of illegal substances while you are pregnant, placental insufficiency may result.
  • Your risk is further increased by medical disorders like diabetes, preeclampsia, and blood clotting issues.

To learn more about inducing labor visit:

brainly.com/question/28251082

#SPJ4

5 0
2 years ago
What does the theory of evolution tell us about how organisms adapt to their environment over time?
klemol [59]

Answer:

A population changes in response to a change in the environment.

Explanation:

The changes in a population( variations) are due to changes in the environment. These variations confers an advantage to those individual possessing them. This enables such individuals to stand a better chance to survive in the struggle for existence. The better adapted individuals are able to survive and reach the reproductive age and pass over their favourable traits to their offspring.

3 0
3 years ago
Read 2 more answers
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