Which of the following is a benefit of a scientific investigation?A: it's results do not apply to real life
B: it can be performed in natural settings.
C: it's environment is tightly controlled.
D: it requires setting up a hypothesis.

Answers

Answer 1

Answer:

Answer:

I would say D

Explanation:

A doesn't make sense and you can do scientific investigation in natural settings and controlled settings making D the only answer left.

Answer 2

Answer:

Answer:

Explanation:

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In pea plants, purple flowers are dominant over white flowers. Which of the following crosses would create an offspring population with all white flowers?two hybrid plants
two homozygous recessive plants
homozygous dominant plant with a hybrid plant
homozygous recessive plant with a hybrid plant

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Choose all the answers that apply.

In some plants, pink flowers are dominant over yellow flowers. If Marlo crosses two hybrids _____.
the ratio of pink to yellow flowers will be 3:1
50 percent of the offspring will be hybrids
none of the offspring will have yellow flowers
three-fourths of the offspring will have the same phenotype
half of the offspring will be homozygous for flower color

Answers

Answer:

A) option B, two homozygous recessive plants is correct

B) A, B, D and E is correct

Explanation:

A) Given purple flowers are dominant over white flowers

Let P represents allele for purple color of flower while p represents white color of flower.

In order to create all white offspring from a cross, the parents must have homozygous recessive genotype i.e pp

Hence, option B, two homozygous recessive plants is correct.

B) Given pink flowers are dominant over yellow flowers. Let “Y” represents allele for pink flower and “y” represent allele for yellow flower

If two hybrid parents with genotype “Yy” are crossed, then following offspring will b eproduced –

Yy * Yy

YY, Yy, Yy, yy

Out of four , two are hybrid offspring, three genotype i.e YY, Yy, Yy have the same genotype and both YY and yy are homozygous for flower color,

Hence, option A, B, D and E is correct.

The cross with two homozygous recessive plants would produce a population of all white flowers.

In some plants, pink flowers are dominant over yellow flowers. If Marlo crosses two hybrids:
the ratio of pink to yellow flowers will be 3:1
50% of the offspring will be hybrids
3/4 of the offspring will have the same phenotype
1/2 the offspring will be homozygous for flower colour

What do you call a collection of organ systems, organs and tissues that carries out life processes on its own?Incorrect
A. cells
B. organ systems
C. tissues
D. organism

Answers

the answer is D. organism

Consider the formula for glucose: C6H1206. What does this indicate about the relationship of the reactants to glucose?OTwelve water (H2O) molecules were used to make it.
O Twelve hydrogen (H2) molecules were used to make it.
O Six oxygen (O2) molecules were used to make it.
O Six carbon dioxide (CO2) molecules were used to make it.

Answers

Answer:

Six carbon dioxide (CO2) molecules were used to make it.

Explanation:

What are four properties that can be used to describe a mineral

Answers

hardness,dienicty,texture and colors

Which of the following is not a benefit of biofilms for bacteria?O a
Ob
oc
Od
Biofilms allow for adhesion of colonies
Bacteria can share nutrients
Allows for resistance to sanitation
Better spreading of reproductive cells

Answers

Answer:

Better spreading of reproductive cell is not a benefit of bioflims for bacteria.

Option: (d)

Explanation:

Bioflims can allow for adhesion of colonies, that can attach surface such as rock, tooth and it includes single or group of micro organism.

Bioflim bacteria can share 'nutrients' and it is sheltered from 'harmful factors' in environment like desiccation, antibiotics, etc.

It allow resistance for sanitation, that hold bacteria together and also exclude most disinfectant and antibiotics. It is resistant to sterilization.

The blood type trait is controlled by more than two alleles for a given gene and therefore is called multiple alleles.True
False