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3 years ago

Do Plant cells have chloroplasts but not mitochondrion

Biology

1 answer:

Anna11 [10]3 years ago

6 0

Answer:

Chloroplasts are found only in plants and photosynthetic algae. Chloroplasts are found only in plants and photosynthetic algae.

Explanation:

hope this helps

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A food inspector goes to a factory that processes and packages spinach for sale. He wants to test

Jlenok [28]

Answer:

a) and b) All the 12 plates taken by the food controller for the analysis are test plates in light of the fact that the food inspector is trying distinctive spinach from 10 unique bundles and do try different things with every one of the 12 plates.

C) and D).only #11 plate is a negative control since he utilized the spinach which isn't cleaned. so microorganisms can develop on that pate because they have the positive condition to develop themselves.

e) and f). all #1 - #10 and #12 plates are positive control plates since he swipes all the plates and spinach that can be the reason for the development of microbes so there is an excess of fewer opportunities to the defiling of spinach and he is playing it safe.

5 0

3 years ago

What is the correct way to handle a needle after it is used to give a vitamin injection to a health patient?

stealth61 [152]

<span>Actually the correct method to handle the used needle is ie, It should be disposed in the right place after wrapping up it with a piece of paper or cover, which will surely avoid any type future unwanted problems to the new patients or any body and also it stops us from the spreading of unwanted diseases.</span>

4 0

3 years ago

The source of passive immunity that a mother gives to her infant through breast milk is known as __________.

maks197457 [2]

Answer:

The correct answer is- IgA

Explanation:

There are five types or class of antibodies found in the human body these are IgA, IgM, IgD, IgE, and IgG. Out of these five class IgA antibody is found in an abundant amount in the mother's milk or colostrum.

Infant take this antibody from the mother through breastfeeding which protects the infant from may pathogenic microbes. The immunity in which antibodies are taken from outside is called passive immunity.

Therefore the passive immunity source that is given by the mother to baby through breast milk is called IgA.

3 0

2 years ago

6/9/2021

yawa3891 [41]

Answer:

The recessive alleles.

4 0

3 years ago

In fruit flies, curved wings (w) are recessive to the dominant straight wings (W), and ebony body (b) is recessive to the domina

lara [203]

Answer:

The correct answer =

parents : WwBb x wwbb

offspring :

WwBb, Wwbb, wwBb, and wwbb

Explanation:

It is given that the straight wings (W) is dominant over curved wings (w) and the ebony body (b) is recessive to the dominant gray body (B) and there is a cross between curved wings and ebony body and straight wings and gray body is made. The phenotypic ratio is: 1:1:1:1 for the four different phenotypes straight gray, straight ebony, curved gray, curved ebony.

It is not given the genotype of parents, however, for the curved and ebony fly, it is clear that both alleles are recessive as recessive alleles only appear in absence of the dominant allele of the trait.

For another parent, the possible genotypes can be WWBB or WwBb, however in the case of WWBB the phenotypic ratio would not be equal therefore,

crossing WwBb x wwbb

This can be represented in the form of a punnett square as below:

wb wb wb wb

WB WwBb WwBb WwBb WwBb Straight wing, Gray body

Wb Wwbb Wwbb Wwbb Wwbb Straight wing, Ebony body

wB wwBb wwBb wwBb wwBb Curved wing, Gray body

wb wwbb wwbb wwbb wwbb Curved wing, Ebony Body

The phenotypic ratio is: 1:1:1:1 for the four different phenotypes

4 0

2 years ago