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Vaselesa [24]
3 years ago
15

Explain how a scientist can determine when a particular species of dinosaur lived on Earth.

Biology
1 answer:
cluponka [151]3 years ago
8 0

Answer:

by fossil dna

Explanation:

it is too easy for a sciencetist

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Which organisms can be treated with penicillin g (benzylpenicillin)? (select all that apply.)?
Marta_Voda [28]
The question does not give any options, I found the excercise on the web and here are the options:
a. Methicillin-resistant Staphylococcus au-reus
b. Neisseria meningitidis
c. Pseudomonas aeruginosa
d. Streptococcus pyogenes
<span>e. Treponema pallidum
</span>
The correct choices are: <span>B, D, E</span>

Penicillin G is the primary medication of choice for N. meningitidis. It is a medication of first choice for contaminations caused by sensitive gram-positive cocci, including S. pyogenes. It is a medication of choice for T. pallidum. It isn't powerful against methicillin-resistant S. aureus or P. aeruginosa.
6 0
3 years ago
There are three different types of rocks: igneous, metamorphic, and sedimentary. Which type of rock would you expect to find alo
slamgirl [31]

Answer: Igneous

Explanation:

The main type of rock found at divergent plate boundaries is igneous. These rocks are formed when magma cools and becomes solid, either above or below ground. They are rich in elements including silicon, aluminium, sodium, potassium, calcium and iron, and make up about 95 percent of the upper part of the Earth's crust. More than 700 types of igneous rock have been identified.

Most rocks formed at divergent boundaries are categorized as malefic igneous rocks, which are dark-coloured due to their high magnesium and iron content. This category includes basalt, gabbro and peridotites, which are often found at these boundaries.

4 0
3 years ago
Which layer of the atmosphere is between the mesosphere and the exosphere? A.) troposphere
alukav5142 [94]

Answer:

C. Thermosphere

Explanation:

C. Thermosphere

4 0
4 years ago
What type of bond is formed when two atoms share one or more pairs of valence electrons?
fiasKO [112]

Answer:

Covalent bond

Explanation:

When atoms share valence electrons, it is called a covalent bond. Be careful not to confuse this with an ionic bond, which is when valence electrons are transferred from one atom to another. Hope this helps!

5 0
3 years ago
Is diabetes an infectious or non-infectious disease?
ikadub [295]

Answer:

non-infectious

Explanation:

You cannot be infected by another person with diabetes.

4 0
3 years ago
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