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Phantasy [73]
3 years ago
7

Meiosis contributes to genetic variation due to which of the following characteristics of the process?

Biology
1 answer:
Rashid [163]3 years ago
6 0

Answer: Due to crossing over and independent assortment.

Explanation: Crossing over occurs in Prophase I. It's when the homologous chromosmes switch genes with each other. This ways, genes are recombined, unique chromosmes are made!

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4. Unlike a scientific theory, a scientific law describes an observed pattern in nature without
muminat

Answer:

False

Any discovery must first be tested and have an explanation

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3 years ago
A phylogenetic tree shows that birds and crocodiles share many features. A hypothesis based on this tree predicts that these fea
Anastaziya [24]

Complete question: A phylogenetic tree shows that birds and crocodiles share many features. A hypothesis based on this tree predicts that these features are present in a common ancestor. Which of these predicted traits is supported by fossil evidence?

A) four-chambered heart

B) singing for territory

C) eggs and nests

D) singing to attract mates

Answer: (c) eggs and nests

Explanation:

A hypothesis based on phylogenetic tree shows that birds and crocodiles have ancestral connection. Fossil evidence shows that their common ancestor exhibit oviparity as a means of reproduction (i.e. laying of eggs and embryo develops within the egg), and also housed their eggs in the nest for protection against predators and other important reasons.

8 0
3 years ago
The innermost serous membrane covering the heart is the: Group of answer choices synovial layer peritoneum visceral pleura visce
stepan [7]

<u>Answer:</u>

<em>There are innermost serious membranes that cover the heart is Parietal Pericardium.</em>

<u>Explanation:</u>

Heart is <em>covered by pericardium</em> in two sides, inner and outer sides. The inner membrane is parietal pericardium and the outer one is visceral pericardium. Pericardium is made up of <em>fiber tissues</em> that strongly protect the heart from all around.

The<em> main function of pericardium</em> is to protect the heart from any injuries and prevent the infections. The serious pericardium helps in<em> lubricating the heart. </em>

3 0
3 years ago
Biology may answer many questions, but it’s main focus is
bezimeni [28]
 Biology answers many questions<span>, </span>but its main focus is<span> how living organisms interact and function.
hope it helped give thanks :)
</span>
6 0
3 years ago
Read 2 more answers
Similarities and differences between dna and rna
Crank
- DNA and RNA are made up of monomers called nucleotides. - DNA and RNA both have 3 nitrogenous bases: Adenine, Cytosine and Guanine. - DNA and RNA both have a phosphate groups in their nucleotides. Sometimes called phosphoric acid.Feb 18, 2009
7 0
3 years ago
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