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slega [8]
3 years ago
12

What is a scientific theory?

Biology
2 answers:
tester [92]3 years ago
6 0

Answer:

The answer would be The letter B that I understand the question

Tom [10]3 years ago
4 0

Answer:

i want to say B because they experiment and get multiple types of results

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Which of these sentences describe sources and preservation of genetic variation? Select all that apply.
madam [21]

The correct sentences are the following:

 A) Antibiotic resistance in bacterial populations is caused by natural selection of bacteria that inherit mutations that make them resistant to the antibiotics.

 C) Crossing-over causes a shuffling of allele combinations during meiosis as the alleles from each parent form new combinations on homologous chromosomes.

 E) When two bacteria are linked during conjugation, the donor cell passes DNA to the recipient cell which causes genetic recombination.

Explanation:

These three options are associated with the generation and preservation of genetic diversity

4 0
3 years ago
What happens to matter in a biogeochemical cycle
Lady bird [3.3K]

Answer:

A biogeochemical cycle is one of several natural cycles, in which conserved matter moves through the biotic and abiotic parts of an ecosystem. ... Each of these elements is circulated through the biotic components, which are the living parts of an ecosystem, and the abiotic components, which are the non-living parts.

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3 years ago
The Bohr model of atoms shows a proton-rich nucleus surrounded by orbiting electrons.
Anna71 [15]
A is the answer dear.
4 0
3 years ago
Read 2 more answers
Genetic change in bacteria can be brought about by
Debora [2.8K]

point, shift deletion, UV rays, radiations, genetics mutations, gene editing

That is just some method that gene can change within the DNA

7 0
3 years ago
if a flower were orange would it more likely be pollinated by insects or by the wind give at least one reason for your answer
yan [13]

It would more likely to be pollinated by insects.


This is because the bright color of the petals can attract insects towards the flower thus sticking some pollen grains and transfer them to the stigma (female part of flower).


On the other hand, the color of petals do not really have effect on the wind pollination. Therefore this explains why wind pollinated flowers usually have small or dull colored petals.

4 0
3 years ago
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