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Brut [27]
2 years ago
9

A flower is the reproductive structure of:

Biology
1 answer:
Ne4ueva [31]2 years ago
8 0
It’s b !!!!!!!!!!!!!!
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1.scientist solve problem in an organised way called ________
Hatshy [7]

Answer:

1. Scientific method

2. pseudopods

3. In 1909, Ernest Rutherford’s

4. innovation

5. nerve cell

5 0
3 years ago
Cardiac output is the amount of blood pumped by the heart in one minute. Which of these will increase cardiac output?
uranmaximum [27]

Answer: the factors that increase cardiac output include:

--> Nervous stimulation and

--> Hypertrophy of the heart.

Explanation:

Cardiac output can be defined as the quantity of blood pumped into the aorta each minute by the heart. This is also the quantity of blood that flows through the circulation. There are factors that can cause increased cardiac output or that can lead to a hypereffective heart. They are:

--> NERVOUS STIMULATION: The combination of sympathetic stimulation and parasympathetic inhibition does two things to increase the pumping effectiveness or cardiac output of the heart. These include:

• it greatly increase the heart rate from the normal level of 72 beats/mum up to 180 to 200 beats /mom.

• it increases the strength of heart contraction, which is called increased contractility to twice it's normal strength.

--> HYPERTROPHY OF THE HEART: A long term increased workload, but not so much excess load that it damages the heart, causes the heart muscle to increase in mass and contractile strength in the same way that heavy exercise causes skeletal muscles to hypertrophy. This effect of increased muscle mass of the heart, allows the heart to pump much greater than usual amounts of cardiac output.

6 0
3 years ago
Read 2 more answers
Whats Do we mean when we say a virus evolves over time
Westkost [7]

Answer:

It means that it is trying to increase it's infectivity rate and its survivability rate in different environments.

8 0
3 years ago
Explain the relationship between genotype and phenotype. How can one phenotype result from more than one genotype?
koban [17]

Answer:

<h2>Genotype is the set of genes( allele) of an organism. </h2><h2>Phenotype is the physical expression of the genetic composition of an organism. </h2>

Explanation:

Genotype: 1. It is the genetic composition of an organism, means it is the set of genes( allels) of an organism's DNA, which is responsible for a particular trait of an organism.  

2. Genotypically, an organism can be homozygous(dominant or recessive) or heterozygous.  Some Alleles are dominant over other, means some can  be dominant or other can be recessive.  

3. Genes are responsible for all the traits in an organism, and these traits are inheritable. All the offsprings inherit all traits from their parents.  

Phenotype: 1. Physical expression of the genetic composition of an organism resulted as  phenotype.

2. It  is the physical expression of genes (alleles) which are responsible for any trait.

5 0
3 years ago
Which is not a factor that controls distribution of most aquatic organisms?
Temka [501]
I’m thinking light because it doesn’t have anything to do with aquatic organisms.
4 0
3 years ago
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