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ratelena [41]
3 years ago
10

What chromosome pair represents a human male?

Biology
1 answer:
podryga [215]3 years ago
8 0

Human males possess an XY pairing.

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What structural features do cellulose and glycogen share, and in what ways do they differ?.
d1i1m1o1n [39]

Answer:

Option (b) Both are polymers of D-glucose but cellulose is connected by ( beta 1-4 ) glycosidic linkage whereas glycogen is connected by ( alpha1-4) glycosidic linkage....

Explanation:

:)

3 0
2 years ago
Earthworms have a(n) , birds have a(n) , and spiders have a(n) . Endo exo or hydroskeleton these choices are used for all three
dezoksy [38]
<span>The types of skeleton depend on where they are located. Earthworms have hydroskeleton because their rigid bodies are based on water pressure so it's hydro then. Endo is found in animals like birds and also humans who have it inside. Exo is found in spiders because they are bugs and bugs have their skeletons like a shell that covers them.</span>
8 0
3 years ago
Read 2 more answers
A chemical reaction is shown.
mixas84 [53]

Answer:

1) A chemical reaction is shown.

SnO2 + H2 → Sn + H2O

What is true about this chemical reaction?

B.

It is unbalanced because the mass of the reactants (number of atoms) is greater than the mass of the products (number of atoms).

2) Read the information about an experiment.  

Jadon plans on carrying out an experiment involving the burning of steel wool to illustrate the conservation of mass. Steel wool is made of iron. When it is burned it combines with oxygen to form iron(III) oxide.

Which step in his experiment is the most important if he wants his experiment to correctly demonstrate the conservation of mass?

A.

The steel wool should be burned inside of a sealed jar or other closed system.

Explanation:

The explanation to number 1 is that I selected it in my test and got it.

The explanation the number 2 is from the link below:

https://quizizz.com/admin/quiz/5dee60258f1145001bc02ed5/physical-science-2nd-9-weeks-practice-test-2020

8 0
2 years ago
How does geographic distribution of organisms support evolutionary theory?
Serga [27]
Because the organism is distributed across the world, and isn't seen anymore, scientists can conclude tat they must have evolved. They can compare one species to the fossils they may have found, and determine that they were related. Then by looking at the species on another part of the world compare the same fossils to other animals and determine that they are similar, sharing a common ancestor.
3 0
3 years ago
FASSST!!!physical science!!!!!
jeka94

Answer

#21

2 for NaF

1 For Br2

2 For NaBr

1 for F2

#22

1 for P4

3 for O2

2 for P2O3

Explanation:

7 0
3 years ago
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