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padilas [110]
3 years ago
12

Before fossil fuel use became widespread, which of the following did people use for a. energy?

Biology
2 answers:
Alex777 [14]3 years ago
3 0

Answer: im not 100% but i think its E all

Explanation:

Ratling [72]3 years ago
3 0

Answer:

e

Explanation:

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When Ashleigh inquired about her family's medical history, she found out that Uncle Albert's mother (Ashleigh's grandmother) als
Stels [109]

The sickle cell pattern based on the family history of Ashleigh isan:

  • Autosomal recessive pattern

Based on the given question, we cam see that in the medical history of Ashleigh's family, most of them have had the sickle cell disease which includes her grandmother, one of her uncle's six children has it too, but her father and grandfather did not have the disease.

With this in mind, the inheritance of the sickle cell disease in the family of Ashleigh is one which is autosomal recessive as it affects some people and doesn't affect others because of the pairing of the chromosome which <em>contains the sickle cell trait.</em>

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Read more about sickle cell here:

brainly.com/question/1626483

7 0
2 years ago
Once produced, NO can diffuse to neighboring cells. <br><br> a. True<br> b. False
LenKa [72]

Answer: True.

Explanation:

Nitric oxide(N,O) is a signaling molecule produced by NO synthase which is a transmitter in the nervous system. In the central nervous system NO is generated by the activation of glutamate receptor. When it is produced, it diffuses out of the cells and act on neighbouring cells.

5 0
3 years ago
Which of the following observations did Mendel make as a result of his experiments with dihybrid crosses?
Vinvika [58]

The correct answer is: B) Different traits are inherited separately.

Mendel’s conclusions as a result of his experiments with dihybrid crosses are known as Mendel’s laws.

• Mendel’s law of Segregation: During the gametes formation (meiosis), alleles are separated so that each gamete carries only one allele for each gene

• Mendel’s law of Independent Assortment: The segregation of alleles of one gene is independent to that of any other gene

Mendel also defined the Principle of Dominance: Recessive alleles will be masked by dominant alleles when are together in heterozygous genotype.

3 0
3 years ago
A few students want to live healthier lifestyles. They decide to use one of the following vegetable oils for cooking.
Novosadov [1.4K]
Coconut oil just did this
7 0
3 years ago
Read 2 more answers
Snapdragon flowers follow an incomplete pattern of inheritance. Flowers can be red (RR), white (WW) or pink (RW). Two RW snapdra
Basile [38]

Answer:

there is a 50% probability

Explanation:

When two pink snapdragons are bred there is a 25% for the offspring to be red, 25% white, and 50% pink

8 0
3 years ago
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