answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zvonat [6]
2 years ago
14

Scientists once believed that Tyrannosaurus rex dragged its tail along the ground. Today, they know that T. rex did not drag its

tail but held it aloft, above the ground. This change in scientific consensus happened because scientists liked the idea that T. rex held its tail aloft better. no one supported the idea that T. rex dragged its tail on the ground. the idea that T. rex held its tail aloft is an emerging idea that replaced the old idea. the idea that T. rex held its tail aloft was supported by the studies of many scientists.
Biology
2 answers:
kirza4 [7]2 years ago
8 0
<span>This change in scientific consensus happened because scientists liked the idea that T. rex held its tail aloft better.
- no, this is not a scientific behaviour!

no one supported the idea that T. rex dragged its tail on the ground.
- this is not true, someone must have supported it if people believed it

the idea that T. rex held its tail aloft is an emerging idea that replaced the old idea.
- yes, but how did the new idea come about?

the idea that T. rex held its tail aloft was supported by the studies of many scientists.
</span>- THIS IS TRUE! correct answer
soldi70 [24.7K]2 years ago
7 0

Answer:

d

Explanation:

You might be interested in
"based on the information provided about the regulation of testosterone secretion, propose a testable hypothesis to explain how
Harrizon [31]

The trenbolone acetate caused frank's testicles to shrink<span> because the steroid is taking over the job of the testes so the testes don’t have to do as much work making them less muscular. Trenbolone acts in the same way that testosterone acts, but the esterified form of the hormone is approximately 3 times more potent than the naturally occurring hormone; that is, 3 times more testosterone is required to produce the same effects as a particular amount of trenbolone acetate. </span>Some of its trade names are Trenbol, ester derivative and synthetic steroid. Its chemical structure is similar to that of testosterone, the naturally occurring hormone that is produced by the testicles.

 





4 0
2 years ago
When an element tends to lose its valence electrons in chemical reactions , it behaves more like a When an element tends to gain
Alchen [17]

Answer:

1. metal

2. nonmetal

3. lower

4. higher

5. in the middle

Explanation:

100% Correct of answers    your welcome :)

4 0
2 years ago
Henry bought 280 red and blue paper cups. He used of the blue
stellarik [79]

Answer:didn’t put the number for how many blue cups were used

Explanation:

6 0
2 years ago
Show how selection, genetic drift, gene flow, and mutation relate to genetic variation. Match the words in the left column to th
Semmy [17]

Answer:

1.  Mutation- increase genetic variation

2. Selection- may increase, decrease or maintain genetic variation

3. Genetic drift- decrease genetic variation.

4. Gene flow- may increase or decrease genetic variation

Explanation:

1. A mutation refers to the changes in the DNA in an organism. The mutation of genes in DNA produces new adaptive features to evolve which increases the genetic variation of the organisms.

2. The natural selection favors the species which are best suited to live in that natural conditions. The natural selection, therefore, may increase or decrease the variation in a population.

3. Genetic drift is the phenomenon occurs due to random event which changes the gene pool of the population. When the genetic drift phenomenon is observed than the genetic variation of that population usually decreases.

4. Gene flow is the phenomenon in which the gene pool changes die to immigration and emigration. Therefore the phenomenon may increase or decrease genetic variation.

8 0
2 years ago
The ability of one or more organisms in a population to tolerate a chemical such as a pesticide or antibiotic designed to kill i
Aleksandr [31]

Answer:

The correct answer is- Resistance

Explanation:

The ability of any organism in a population to tolerate a chemical like insecticide, pesticide or antibiotic which is designed to kill it or slow its reproduction is called resistance.

For example, the antibiotic resistance is seen in some bacteria like MRSA(Methicillin-resistant staphylococcus aureus). They gain this resistance because they have some variant traits in their genome which provide them resistance against these chemicals.  

These individual are selected through natural selection when the environmental condition changes and become adverse. So the correct answer is resistance.

5 0
2 years ago
Other questions:
  • A classmate describes a bacterium to you as living on the roots of clover and providing nutrients to the plant. would you classi
    15·1 answer
  • A scientist notices an increase in the glucose production in the plants he is studying. What are the possible reasons? Check all
    6·2 answers
  • When sea ice forms in the ocean, the salinity of the surrounding ocean water decreases increases remains the same .
    11·1 answer
  • (01.04 LC)
    5·2 answers
  • In the spinal cord, gray matter is functionally organized into _________ while white matter is organized into _________.
    8·2 answers
  • The enzyme telomerase is part protein and part RNA. What would be the most likely effect of a large deletion in the gene that en
    11·1 answer
  • Cerebrum has its upper surface gray but the upper surface of the spinal cord is white. give reason​
    13·1 answer
  • Which of the following statements concerning ribosomes is true?
    13·1 answer
  • What are two new pieces of information you learned from the artide? Did the information in the article support of contradict you
    14·1 answer
  • Which molecules would you expect to find at the top of the diagram?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!