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dmitriy555 [2]
3 years ago
13

Which organism first appeared during the Cenozoic era? A. cyanobacteria B. trilobite C. wolf D. dinosaur

Biology
1 answer:
drek231 [11]3 years ago
8 0
<span>C. wolf 

mammals flourished after the comet it earth and killed the dinosaurs</span>
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Pseudomonas aeruginosa is a non-fermenting GNR, it grows on EMB. Which of the following would be true (Circle none, one or many)
Dafna11 [192]

Answer:

The correct answer is a. Pseudomonas aeruginosa would be colorless on EMB

Explanation:

Pseudomonas aeruginosa is a gram-positive bacteria that is rod shape. It shows a few nutritional requirements and can even adapt to those conditions in which the other bacteria can be adapt.

It is non-fermentative bacteria so it does not ferment lactose and other carbohydrates. As EMB agar contains lactose and some dye, therefore, the lactose fermenting bacteria ferment the lactose and show good growth and color change.

But as Pseudomonas aeruginosa is a non-fermentative bacteria it does not ferment lactose and does not show any color and forms a colorless colony. Therefore the correct answer is a.

7 0
3 years ago
Can someone help with this ?
kow [346]

Answer:

to convert ADP to ATP

= first option

Explanation:

so it must be the first option

since in order for this conversion the process stated in the first option must occur.

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2 years ago
When the outer electron shell is full in an element, this creates a __________ ___________
Ierofanga [76]

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When the outer electron shell is full in an element, this creates a Noble gas.

<u>Explanation</u>:

Noble gases are the elements that belong to group 18 in the periodic table.  Noble gases are also called as inert gases. The outermost shell of the noble gases are fully filled by electrons. Due to this the noble gases don’t react with any other elements and remain isolated.

There are 6 noble gases in the periodic table. They are helium (He), Argon (Ar), Neon (Ne) Krypton (Kr), Radon (Rn) and Xenon (Xe). Noble gases conduct electricity. They are fluorescent, odorless and colorless. Noble gases are used a maintain stable elements in a constant and safe environment.

5 0
3 years ago
The mother of an infant child asks the nurse what the right feeding schedule is for an infant. Of the following responses, which
lys-0071 [83]

Answer:

B

Explanation:

The child may go through growth spurts at 7-14 days old, between 3-6 weeks old, around 4 months old, and around 6 months old. So feeding them at that consistency will help in their development.

5 0
3 years ago
Why does the actions of the thymus demonstrate a close functional connection between the lymphatic system and the endocrine syst
OleMash [197]

Answer:

The Thymus is a unique gland which protects the body against autoimmunity when the immune system act against itself.Hence the Thymus plays a significant role the dual systems i.e.,the lymphatic system (body’s defensive mechanism) and the endocrine system

Explanation:

The Thymus is special gland located anteriorly to the chest directly behind the sternum and in between the lungs. Active until puberty and gradually shrinks to become fat after puberty.

Function: Prior to birth and during childhood thymus engage in producing and maturation of T-lymphocytes or T-cells a particular type of white blood cells which defence the body against infectious disease germs.Though the organ does not function throughout the life span but it plays a significant role protecting the body against autoimmunity refers to an immune system works against itself .Therefore the thymus plays a key role in lymphatic system and an endocrine system.

Secretion:Thymus secretes Thymosin a hormone it instigates the development of T-Cells ( disease resisting cells) Thymosin stimulates the development of T-Cells until a human attains its puberty. At the age of 75 thymus becomes a fatty tissue.

8 0
3 years ago
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