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KengaRu [80]
3 years ago
8

Which mechanism of genetic variation results from the exchange of gene segments between non-sister chromatids?

Biology
2 answers:
otez555 [7]3 years ago
6 0
The correct answer should be "A"
elixir [45]3 years ago
3 0
The crossing over mechanism of genetic variation results from the exchange of gene segments between non sister chromatids. The correct answer is A. 
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Some geologists hypothesize that the mass extinction of dinosaurs was caused by a large meteorite impact. These geologists think
ANTONII [103]
The meteorite was probably 1<span>0 to 15 km (6.2 to 9.3 mi) wide</span> and affected the entire planet through a proces called "impact winter". As the name suggests, an impact winter is a period of low temperature produced by a huge cloud of ash and dust that blocks sunlight. Since sunlight is essential for plants to survive, if the sun rays are blocked by this cloud, all animals that depend on those plants (including dinosaurs) will die. The meteorite could have created such a cloud upon hitting the earth.  
3 0
3 years ago
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Choose the term that best matches the description given. Treatments that destroy or decrease the growth of a microbe infection i
swat32

Answer: The correct option is D (Antimicrobials).

Explanation:

Antimicrobial treatment is defined as therapies that are given to patients to either inhibit or kill the growth of microorganisms IN their body cells. The antimicrobial treatment can be grouped into two based on their mechanism of action. These includes:

--> Microbiocidal therapy: This type of treatment when given, kills the microorganisms in the cells of the patient.

--> Microbiostatic therapy: This type of treatment aims at inhibiting the growth of microorganisms when administered to a patient.

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--> cell wall inhibition

--> inhibition of cell membrane function

--> protein and nucleic acid synthesis inhibition.

Disinfects, antiseptic and sterilisation are all different ways of eliminating microorganisms but not used as invitro (within) treatment for patients. Therefore the term that best matches the description given is antimicrobials.

6 0
3 years ago
by sensing and responding to change organisms keep conditions in the internal enviornment within ranges that cells can tolerate
Zina [86]

Answer:

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Explanation:

do u have a picture of if

5 0
3 years ago
Explain how homeostasis in a cell is maintained?
oksian1 [2.3K]
Cell membranes help organisms maintain homeostasis by controlling what substances may enter or leave cells
4 0
3 years ago
Why is cytokinesis an important part of the cell division? how can cytokinesis help us?
Sliva [168]

Answer:

1. Cytokinesis represents the major reproductive procedure of unicellular organisms, and it occurs in the process of embryonic development and tissue growth and repair of higher plants and animals.

2. Cytokinesis performs an essential process to separate the cell in half and ensure that one nucleus ends up in each daughter cell. Cytokinesis starts during the nuclear division phase called anaphase and continues through telophase.

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