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vazorg [7]
3 years ago
12

Where in the Milky Way are new stars being formed?

Biology
2 answers:
a_sh-v [17]3 years ago
7 0
Stars are born in gas clouds. they can be formed anywhere in the Milky Way.
MissTica3 years ago
4 0
Their birth places are huge, cold clouds of gas and dust, known as 'nebulas'.
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You perform a test cross of the dihybrid AaBb and score the phenotypes of 1000 progeny. Assuming independent assortment, how man
Gnoma [55]

Answer:

4

Explanation:

<em>The number of progeny expected to display the dominant phenotype for both the A and B genes should be  4.</em>

<u>A test cross usually involves crossing an individual whose zygosity is in doubt with an individual that is recessive for both alleles so as to ascertain the zygosity of the former.</u> Hence, for a test cross involving AaBb:

             AaBb     x     aabb

Progeny:

4 AaBb

4 Aabb

4 aaBb

4 aabb

<em>Therefore, the number of progeny expected to display the dominant phenotype for both the A and B genes is 4.</em>

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3 years ago
) You ran your 5kb DNA sample on the gel and you notice that the size of the fragment seems to be smaller than 5kb. You then tre
Diano4ka-milaya [45]

Answer:yjygjygjghjgyj

Explanation:

6 0
3 years ago
When is the lac operon most active?
Over [174]
I believe it's "C. When glucose levels are low and lactose is present" I may be wrong.
8 0
3 years ago
One day you notice that part of your garden is much more prolific in producing flowers than another part. You observe that some
makvit [3.9K]

Answer and Explanation:

The steps of the scientific method are

1) A question the investigator wants to answer.

2) Antecedents or Previous knowledge about the study object.

3) The goal, which is what the investigator wants to know.

4) The hypothesis that the investigator makes in order to predict what is going to happen.

5)The experiment is performed to answer the question.

6) Results achievement

7) Conclusions where the hypothesis is rejected or accepted.

In the case of the exposed example,

  1. Question: How does the amount of sunlight affect the extent of flower production?
  2. Previous knowledge and antecedents about solar radiation influencing different plant growth and flowering. Information about the species of interest. Other studies or investigations performed in relation to this question.
  3. Objective/Goal: To study the influence of sunlight in flowering
  4. Hypothesis: Too many hours of radiation affect flowering production
  5. Experiment: (Example)

Native species are going to be planted in the garden to observe their growth and flower production at different exposure levels to sunlight. Native species will be planted, as they are used to the environmental conditions and they do not need extra care, as a cultivated species would. More than one individual is needed to ensure their establishment. All the species will be watered according to each species needs and location. Plagues will be equally controlled.

  • 3 native individuals of a herbaceous plant, 3 native individuals of a woody plant, and 3 native grass plants are located in a sunny section that receives straight sun radiation during the whole light hours.  
  • 3 native individuals of a herbaceous plant, 3 native individuals of a woody plant, and 3 native grass plants are located in a sunny section that receives sun radiation during half a day
  • 3 native individuals of a herbaceous plant, 3 native individuals of a woody plant, and 3 native grass plants are located in a  shaded section.

Plants will be grown and the flowering process will be recorded by season in relation to the number of flowers, sizes, quality, and pollinizer visitors which will reflect the amount and quality of nectar.

6 y 7. Every recorded result will be then analyzed to conclude.      

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3 years ago
Which organs are responsible for producing fluid to give sperm nourishment and motility?
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Answer:

vast deferens tested seminal vesicles prostate gland

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