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agasfer [191]
4 years ago
6

What must be broken for a DNA strand to separate?

Biology
1 answer:
ipn [44]4 years ago
3 0
Hydrogen bonds connecting base pairs must be broken.
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Which of the following represents the correct pathway of the egg after leaving the ovary and entering the uterine tube?
Hoochie [10]

<u>Answer</u>: Infundibulum, ampulla, isthmus, uterus.

<u>Explanation</u>:

  • The ovary produces the egg and, it releases one unfertilized egg every month.
  • The egg then travels through the fallopian tube to the uterus.
  • The fallopian tube consists of three parts:

1. <em>Infundibulum</em>- it is the most distal portion of the fallopian tube which receives the egg coming out of the ovary.

2. <em>Ampulla</em>- This is the next portion of the fallopian tube which is ciliated and is the site of fertilisation of the egg.

3. <em>Isthmus</em>- it is also a ciliated region which controls the transport of both sperm and the embryo.

  • Finally, after passing through the isthmus the fertilized egg reaches the uterus where implantation takes place.
  • <em>So the journey of the egg from the ovary to uterus follows the pathway, ovary---> infundibulum--->ampulla--->isthmus--->uterus.</em>

<em></em>

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4 years ago
What was nearly eradicated when society decided to mass produce and use a vaccine created by Jonas Salk?
frez [133]
Poliomyelitis or Polio, a virus and viral disease. Poliomyelitis while relatively common and asymptomatic, had a high prevalence of paralysis due to the sheer number of infected. The vaccine was created by Jonas Salk, that immunized the patient towards the disease, saving countless lives, and effectively paved the way to eliminating polio in US.
4 0
3 years ago
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Please, help me with my packet
My name is Ann [436]

The answer to question 3 is choice B. Cells 

The answer to question number 5 is choice A. New cells are made in all of them

The answer to question number 6 is choice A. Cells make the basic structure of an organism, and they perform basic life functions for the organism

The answer to question number 7 is choice B. maintenance of homeostasis

The answer to question number 9 is choice B. Viruses must invade a host cell to reproduce while bacteria can reproduce on their own

The answer to question number 11 is choice D. Eubacteria, Archaea, Protist, Fungus, Plant, and Animal

The answer to question 14 is choice D. 100%

The answer to question 15 is choice B. 100% white _ might have to re-check this one

The answer to question 17 is choice B. Ff and Ff

The answer to question 18 is choice A. They will all be tall

The answer to question 19 is choice B. Mutualistic

The answer to question number 20 is choice D. planting flowers

The answer to question number 22 is choice B. the population of the rabbits in the ecosystem will increase

The answer to question number 23 is choice D. competition for resources



5 0
3 years ago
In phoenix, cool-season annuals used as bedding plants should be
forsale [732]

In Pheonix, the cool season annuals that is used as bedding plants are likely to be planted during the fall in a way of making flowers for the season of the winter and as well as for the early spring.

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What is an enzyme? Describe using the words enzyme, catalyst, substarte, and active site.
fgiga [73]
An enzyme is a catalyst which means it changes the speed at which a chemical reaction occurs. It never alters the reaction in any way or changes nay chemical properties, only the speed at which it occurs and is completely absorbed in the meantime. The substrates that are reacting just have their reaction faster.
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