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otez555 [7]
3 years ago
6

Under a microscope, a student observes a specimen containing a cell wall, nucleus, and chloroplasts.

Biology
2 answers:
mart [117]3 years ago
5 0

Answer:

A plant cell b/c it has chloroplast

Explanation:

Chloroplast absorbs sunlight also known as light energy used for the process of photosynthesis.

nadezda [96]3 years ago
5 0

Answer:

oak tree leaves could the specimen being observed belong to

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Which valve is located between the right atrium and ventricle?
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tricuspid valve is located between the right atrium and ventricle

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HELP <br> Oldest to Youngest
Nataly_w [17]

Answer:

oh im doing this so i hope it help

Explanation:

i would be the youngest than d then h, e a c g ? it gets a little confusing but thats what i would say

5 0
2 years ago
Is there any scientific evidence about planet 9? Has it been discovered yet? Is there any type of life on it?
ahrayia [7]
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6 0
3 years ago
8. In chickens, brown feathers are dominant over red feathers. Suppose we cross two heterozygous chickens.
devlian [24]

Answer:

Crossing two chickens heterozygous for the trait feather color, when brown feathers are dominant over red feathers, will produce offspring with brown and red feathers in a brown:red phenotypic ratio of 3:1.

Explanation:

Knowing that in chickens brown feathers are the expression of the dominant allele (B) and the recessive allele is red (b), crossing two heterozygous individuals (Bb) will result in offspring that are likely to have brown or red feathers.

The cross can be represented by a Punnett Square:

<u>Bb X Bb cross </u>

alleles     B    b

B             BB Bb  

b             Bb bb

Where the result is:

<u>Genotypes</u>:  

  • Bb, 50%
  • BB, 25%
  • bb, 25%

<u>Phenotypes</u>:

  • Brown feathers, 75%
  • Red feathers, 25%.

In this case, the probability of having brown or red feathers is 3:1.

3 0
3 years ago
If you were an electron, and your home town was your nucleus, what would you need to do in relation to your home town to emit li
Scilla [17]

Answer:

Option B, Move closer to your home town

Explanation:

The options for the given question are as follows -

A) Knock down your previous house and build a bigger one.

B) Move closer to your home town.

C) Move further away from your home town.

D) Stay where you are but speed up your daily life

Solution -

Electrons carry negative charge while nucleus carries positive charge due to the presence of positively charged proton ions and neutral ions (which has no charge). All the electrons are attracted towards the nucleus due to its positive charge. The orbit on which an electron revolves around a nucleus has higher energy level as compared to the energy levels located in between the space of electron and nucleus.  

While moving from a high energy orbital to a low energy level orbital, an electron releases some energy.  Hence, in order to move closer to home, electron needs to push itself toward the nucleus by releasing energy

Hence, the given option is B

5 0
3 years ago
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