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satela [25.4K]
3 years ago
9

What is a gene mutation or point mutation?

Biology
1 answer:
makvit [3.9K]3 years ago
7 0
A mutation is a change in trait. For example people who are lactose intolerant are normal, but people that can can drink milk without a problem have mutated. Hopefully this makes sense and helped.
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Vertebrates have an endocrine system of glands that secrete _____.
MatroZZZ [7]
Hormones because if you think about it. Vertebrates must have backbones and mammals have them. And, humans are basically mammals. And the glands secrete hormones.
5 0
3 years ago
1. Starting in the mouth, food follows a pathway through the digestive system. Describe how the mouth is involved in both mechan
ikadub [295]

Explanation:

1) Chemical digestion begins in the mouth when food mixes with saliva. Saliva contains an enzyme (amylase) that begins the breakdown of carbohydrates.

2) The daily values are reference amounts (expressed in grams, milligrams, or micrograms) of nutrients to consume or not to exceed each day. The %DV helps you determine if a seving of food is high or low in a nutrient.

3) If a food has a daily value of 5% or less of a nutrient, it is considered to be low in that nutrient.

A food is a good source of a nutrient if the percent daily value is between 10% and 19%, If the food has 20% or more of the daily value, it is considered an excellent source of that nutrient.

4) As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. The body then absorbs these smaller molecules through the walls of the small intestine into the bloodstream, which delivers them to the rest of the body.

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Glad to help!!!!

7 0
3 years ago
According to advocates for the use of genetic engineering, which is an example of the importance of recombinant DNA technology?
madam [21]

Answer:

D. There is a reduced use of pesticides, herbicides, and fertilizers

Explanation:

8 0
2 years ago
Read 2 more answers
B
victus00 [196]
This answer is C Macronutrient
3 0
2 years ago
Visual Check
aksik [14]

Answer:

They should all have purple flowers.

Explanation:

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Hope this helps! :)

8 0
2 years ago
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