Any physical characteristic can be passed on from generation to generation. However, some characteristics are influenced by the environment as well as having a genetic predisposition for that specific trait.

4 0

3 years ago

Blood pressure can directly affect blood flow through the circulatory system.

postnew [5]

True) Blood pressure does affect the blood flow through the circulatory system. Blood pressure is the pressure of circulating blood on the walls of blood vessels.

- R3KTFORGOOD ☕

6 0

3 years ago

Since the 1970’s, the Earth has been warming. Can this be due to natural, increased solar output? Why or why not?

Margarita [4]

No.

The Sun can influence the Earth’s climate, but it isn’t responsible for the warming trend we’ve seen over the past few decades. We know subtle changes in the Earth’s orbit around the Sun are responsible for the comings and goings of the ice ages. But the warming we’ve seen over the last few decades is too rapid to be linked to changes in Earth’s orbit, and too large to be caused by solar activity.

4 0

3 years ago

Fill in the Punnett square below to visualize the offspring of a cystic fibrosis carrier and a person who doesn't have cystic fi

valkas [14]

Answer:

50% of their children are likely to be carriers of cystic fibrosis

Explanation:

Since the normal allele "F" will be the dominant allele while the mutated CFR allele "f" will be the recessive allele, <u>the gene (pair of alleles) of the person that is a CFR carrier will be "Ff" while that of the normal person who isn't a carrier will be "FF"</u>. The attachment shows the crossing between the two parents. From the illustration in the attachment, for every 4 children given birth to, 2 of them will likely be normal, "FF", (not a carrier and doesn't have cystic fibrosis) while 2 others will likely be carriers of cystic fibrosis (Ff). Hence, 50% of their children are likely to be carriers of cystic fibrosis.

7 0

3 years ago