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wolverine [178]
3 years ago
14

3. Scientists believe that the boundary stratum between the Cretaceous and Paleogene was

Biology
1 answer:
KIM [24]3 years ago
3 0

Answer:

C. The stratum contains iridium

Explanation:

The Asteroids are large rocky bodies found on the orbit of the sun.If a fragment of a asteroid falls on the earth it is known as the meteorite According to Luis and Walter Alvarez they stated that a huge asteroid strikes the gulf coast of mexico that killed many species o earth including the dinosaurs.this might be the reason for extinction of dinosaurs.Scientists and researchers reported that more than one asteroid involved in extinction of species of the earth.

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In a population, a specific gene has two alleles, 'A' and 'a.' Individuals with
san4es73 [151]

Answer:

In a population, a specific gene has two alleles, 'A' and 'a.' Individuals with

genotype 'aa' die in early childhood. Individuals with genotype 'Aa' have a

higher rate of surviving and reproducing than individuals with genotype 'AA.'

This phenomenon is called survival of the fittest, Darwins law which entails the fittest organisms survives while the ones that could not would go into extinction

Explanation:

6 0
3 years ago
Read 2 more answers
A student observes that a type of eubacteria contains chlorophyll. Which of these does this type of bacteria have in common with
Sunny_sXe [5.5K]

Answer:

A. it is photosynthetic

Explanation:

A. it is photosynthetic  - this is true - chlorophyll is a photosynthetic pigment that traps light energy to power food production. It present in green plants

B. it contains vascular tissues  - this is false - eubacteria are single celled organisms that do not form tissues

C. it contains mitochondria  - this is false - prokaryotic cells do not contain membrane-bound organelles like mitochondria

D. it is heterotrophic - this is false, plants and many bacteria are not heterotrophic, which means they consume other organisms for their food supply rather than creating their own (autotrophic)

6 0
3 years ago
A 7 Tesla scanner, or 7T scanner is preferable to a 3T scanner in what scenarios?
kow [346]

C.  The scenario described when a 7 Tesla scanner, or 7T scanner is used instead of 3T scanner is, "when higher pixel resolution is required"

<h3>What is pixel resolution?</h3>

Pixels per inch and pixels per centimeter are measurements of the pixel density of an electronic image device, such as a computer monitor or television display, or image digitizing device such as a camera or image scanner.

A 7 Tesla scanner, or 7T scanner is preferable to a 3T scanner because the 7 Tesla scanner gives higher pixel resolution when compared to 3 Tesla scanner.

Thus, the scenario described when a 7 Tesla scanner, or 7T scanner is used instead of 3T scanner is, "when higher pixel resolution is required".

Learn more about Scanners here: brainly.com/question/2076274

#SPJ1

6 0
2 years ago
How many neutrons does element x have if it’s atomic number is 22 and it’s mass number is 75?
MAXImum [283]

Chem was fun last year XD

Anyway..


To find how many neutrons are in element x:

We take the mass number and subtract it with the atomic number

So, 75-22=53 neutrons...BOOM! :D

4 0
3 years ago
In what way do two alleles for the same trait differ?
kvasek [131]
I think it’s C explanation : i learned this a while ago
8 0
3 years ago
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