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geniusboy [140]
2 years ago
8

SOMETHING I DONT UNDERSTAND! My sis told me she was on her perio d but then I told her there was this thing called subject and p

redicate and how she isnt supposed to have a period at the end of her statement because it wouldnt make any sense... and ya, it didnt go well cause' she put on a tantrum.
But the weird thing is that Google said this "Tantrums are most common between the ages of one and four, then decrease when children start school." SO HOW COME I DIDN"T HABE A TANTRUM!! life makes no sense
Biology
1 answer:
shusha [124]2 years ago
8 0

Answer:

yep life tends to not make sense

i feel you gurl i also have a older sister

Explanation:

You might be interested in
PLEASE HELP!! BIOLOGY
Bogdan [553]

Answer: what I learned is that natural selection needs 4 things

Explanation:

over production    

genetic variation

i don’t remember the rest but those are the main ones so that there’s lots of offspring in case some cant survive

HOPE I HELPED

6 0
3 years ago
Read 2 more answers
I need help ASAP please
Orlov [11]

I believe your Answer would be:

A: Sister Chromatids.

Explanation:

A sister chromatid refers to the identical copies (chromatids) formed by the DNA replication of a chromosome, with both copies joined together by a common centromere. In other words, a sister chromatid may also be said to be 'one-half' of the duplicated chromosome.

Hope I helped, if so may I get brainliest and a thanks?

Thank you, Have a good day! =)

4 0
3 years ago
the couple is also concerned about their child inheriting hemophilia, another rare disease, which is x-linked. natalie’s brother
IgorC [24]

Hemophilia is a recessive X-linked condition and is inherited from parents. . The probability that Natalie and Daniel’s first child has hemophilia is<u> 1/4</u>, not 1/8. The statement is<u> false.</u>

<h3>What is an X-linked gene?</h3>

When talking about sex-linked genes, we refer to all those genes located in one of the sex-chromosomes and not in the somatic ones.

X-linked genes are the genes located specifically in the X sex chromosome.

Traits coded by these genes are inherited. This is, X-linked genes are transmitted from parents to children through generations.

According to this, X-linked genetic disorders will be inherited as well.

  • Men have a high probability of being affected since they only have one copy of the X chromosome.
  • In women, the effect of the mutation might be musk in heterozygous state if the mutation is recessive.

Hemophilia is a recessive X-linked disorder, which means it is coded by the recessive allele.

  • X+ ⇒ X chrosomosome with Dominant allele
  • X- ⇒ X chrosomosome with Recessive allele

<u>Genotype              Phenotype</u>

X+X+                   Healthy woman

X+X-                    Healthy carrier woman

X-X-                     Hemophilic woman

X+Y                      Healthy man

X-Y                       Hemophilic man

Let us make a pedigree of these families,

<u>Natalie's family</u>:

Mother         healthy carrier          X+X-

Father          healthy                      X+Y

Brother        hemophilic                X-Y  

Natalie         Healthy                     X+X- or X+X+  

Natalie has 1/2 chances of being carrier X+X- and 1/2 of being X+X+.

<u>Daniel's family</u>:

Mother         healthy carrier          X+X-

Father          hemophilic                X-Y  

Sister           hemophilic                X-X-

Daniel          Healthy                      X+Y

He has 1/2 chances of being healthy X+Y and 1/2 of being affected X-Y.

According to the product probability rule, if events A and B are independent from each other, the probability of occurrence of both events together is

P(A∩B) = P(A) x P(B)

In this case,

  • event A is Daniel being affected ⇒ 1/2
  • event B is Natalie being carrier ⇒ 1/2

P(A∩B) = P(A) x P(B) = 1/2 x 1/2 = 1/4

The probability that Natalie and Daniel’s first child has hemophilia is 1/4, not 1/8. The statement is<u> false.</u>

You can learn more about X-linked genes at

brainly.com/question/12420228

brainly.com/question/14704182

brainly.com/question/1387724

#SPJ1

7 0
1 year ago
When you exercise you generate excess heat and your body temperature rises. blood vessels dilate in the skin, warm blood flows c
zalisa [80]

Answer:

The  correct answer is negative feedback.

Explanation:

Negative feedback is considered the mechanism that frequently regulates biological reactions in the body. Negative feedback helps reduce the stimulation of some processes, such as controlling the temperature.

It can be seen that negative feedback works by redirecting some processes that go to one point directs a degree of that process to a different location.

In this case, on the temperature, the feedback is responsible for putting the system to work from the moment it starts to sweat using the different processes to regulate the temperature. This process uses help from enzymes and body pathways.

<em>I hope this information can help you. </em>

3 0
3 years ago
What is the difference between Active and Passive Transport?
tester [92]

Answer:

Active transport moves molecules and ions from lower concentration to higher concentration, passive transport moves molecules and ions from a higher concentration to lower concentration without any energy.

Explanation:

Active transport moves molecules and ions from lower concentration to higher concentration with the help of energy in the form of ATP. On the other hand, passive transport moves molecules and ions from a higher concentration to lower concentration without any energy.

3 0
2 years ago
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