C . Single and Double

Which biome is characterized by having four

NARA [144]

Your answer would be M. Deciduous forest. Hope this helped :]

7 0

3 years ago

In a dihybrid cross, if two heterozygotes (for both genes) are crossed, what will be the expectedphenotypic ratios? (In the foll

olga nikolaevna [1]

In questions like this, the best thing to do is write an example

First of all you need to know that a heterozygous may contribute genotypically different alleles: SY Sy sY or sy

So, if you cross two heterozygotes:

SY Sy sY sy

SYSSYYSSYySsYYSsYy

SySSYySSyySsYySsyy

sYSsYYSsYyssYYssYy

sySsYySsyyssYyssyy

-Well, you see that dominant for both trails are: SSYY, SSYy, SsYY or SsYy

If you count them there are 9 dominant for both trails

-Dominant for the the first trait and recessive for the second can be: SSyy or Ssyy

If you count them there are 3 of them

- In recessive for the first trait and dominant for the second we have two possibilites ssYY or ssYy

So, we see that again we have 3 cases

- Finally, for recessive for both trails the only possibility is ssyy

We have just one case (the one is left in the chart)

You can write it like this: 9:3:3:1

4 0

1 year ago

Bob can run the 100 meter dash in 25 seconds.What is his speed?

-Dominant- [34]

Answer:

i believe the answer would be 4 mph

Explanation:

the formula for speed is distance/time so 100/25 = 4. therefore your answer would be 4 mph. hope this helps:)

4 0

3 years ago

Read 2 more answers

Two ways helpful bacteria work to keep you healthy

Zepler [3.9K]

Probiotics are healthy bacteria which live in the human body, in particular in the intestines, and help fight disease. They are living microorganisms which, when ingested, have beneficial effects on the human body. The most common form of probiotic is Lactobacillus Acidophilus.

It is estimated that there are several trillion friendly bacteria comprising over four hundred species in the average human gastrointestinal tract. By body weight, each of us carries around approximately four pounds of intestinal microflora!

They counteract damage done to the body due to antibiotic use and stimulates the immune system to function better when you are relatively healthy, but when you’re sick, they can also contribute significantly to relief of health problems ranging from indigestion and diarrhea to colon and liver cancer.

Lactobacillus Acidophilus is also involved in the production of B vitamins (niacin, folic acid, and pyridoxine) during the digestive process.

Some of the ways probiotics appear to improve health include: alleviating lactose intolerance, reducing and preventing diarrhea, defending against infections, enhancing the immune system, reducing inflammation, preventing allergic reactions, and reducing chronic constipation

7 0

3 years ago

Fill in the blank

lyudmila [28]

A scientist observes certain changes in the physical features of a particular species over time. She concludes that the species has undergone evolutionary change. She wants to study the animals by analyzing their population. She’ll use() answer choice a. quadrat sampling.

The population of this species is decreasing considerably. If this trend doesn’t change, this species will fall under the category of a. endangered.

6 0

3 years ago