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Veseljchak [2.6K]
3 years ago
10

Plant regions of continuous growth are made up of ________.

Biology
1 answer:
nikklg [1K]3 years ago
6 0

Answer:

Meristematic tissue.

Explanation:

Meristematic tissue contains stem cells which can differentiate into permanent cells. This tissue is at all continuous growth points in a plant, at the apical buds ( where leaves and flowers form) and at the ends of roots.

  • dermal tissue is in animals - this refers to the tissues associated with skin
  • vascular tissue refers to the xylem and phloem of a plant- no growth occurs here.
  • Permanent tissue is tissue which has already differentiated and grown. This is the final form.

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4. Which of the following elements does not want to have eight valence electrons? a. magnesium c. hydrogen b. oxygen d. nitrogen
Cloud [144]

Answer:

Hydrogen.

Explanation:

Hydrogen is the simplest chemical element that exists. The symbol for the chemical element Hydrogen is "H" and it is a colourless, tasteless, odorless, and highly flammable gas.

Hydrogen is a chemical element found in group (1) of the periodic table and as such it has one (1) electrons in its outermost shell. Therefore, Hydrogen has an atomic number of one (1) and a single valence electrons because it has only one proton and one electron in its nucleus.

Based on the octet rule which states that atoms of chemical elements gain, lose or share electrons so as to have eight (8) electrons in their valence shell. Therefore, atoms of chemical elements bond in order to attain the electronic configuration of a noble gas i.e a full valence shell which comprises of eight (8) electrons.

However, the chemical element "Hydrogen" is an exception to the octet rule because it is only able to hold a maximum of two (2) valence electrons in its outermost shell to become full.

<em>Hence, Hydrogen is an element which does not want to have eight valence electrons. </em>

7 0
2 years ago
A ________ is an animal that can transfer infectious pathogens from one host to another.
kifflom [539]

Answer:

Vector

Explanation:

<u>Diseases can be transmitted by the mechanical or the biological vector. Vector is an animal (typically can be called as an arthropod) which carries disease from one host to another. </u>

Mechanical transmission is the one in which an animal which carries the pathogen from on host body to the another without being infected by it. It is facilitated by the mechanical vector.

Biological transmission is th eone which occurs when pathogen reproduces within the biological vector which transmits pathogen from one host body to the another.

5 0
3 years ago
A roasted chicken multigrain sandwich contains 42 g protein, 7 g fat, and 34 g carbohydrates. How much energy does the sandwich
Andrei [34K]

1 -

Calories per gram of:

Fat = 9

Charbohydrates ≈ 4

Proteins ≈ 4

So, now we do the math:

34g of charbohydrates equals 34*4g of calories, therefore, 136.

7g of fat equals 7*9g of calories, therefore, 63.

42g of protein equals 42*4g of calories, therefore, 168

136 + 168 + 63 = 367 grams

Answer:

367 grams of calories in the chicken multigrain sandwhich.

2 -

First let's see what does indigestible mean:

Indigestible means that the body does not digest that substance, it is eaten, and released. No modification happens to it.

Which of the components below are indigestible:

The only indigestible food component mentioned in exercise 2 is fiber. Fiber, which provides from plants, is not digestibe by the body.

Answer:

Fiber.

3 -

This is not my area of expertise, but I must say, it's kind of obvious that the deficiency the patient suffers is vitamin C deficiency.

In a vitamin C deficiency, patients suffer from things such as the ones mentioned in the question.

Answer:

Vitamin C.

Image 1 -

During photosynthesis, protons build up in the thylakoid lumen/space. The left-overs of this building-up are then conduced to the stroma where they generate ATP.

Answer:

Thylakoid lumen.

Image 2 -

Just with the salmon fillet, he has already eaten enough vitamin B12, more than 100% of the recommended daily allowance. The amount of vitamin E of the salmon fillet was low, and the amount of vitamin C was null.

The boiled green beans gave him quite a lot of the vitamin C he needs, but not enough. The vitamin E that the boiled green beens provided was also not enough. The amount of vitamin B12 was null.

The sliced strawberries where enough to back up the lack of vitamin C of the boiled green beans, but not enough to back up the lack of vitamin E. The amount of vitamin B12 was null.

Math:

If we do the math needed, we see that Robert only had enough vitamin B12 and C, and that he needed way more vitamin E.

Answer:

B. - Vitamin B12 and C only.

Hope it helped,

BioTeacher101

5 0
3 years ago
Read 2 more answers
HELP WITH THIS!!! 10 points!!
finlep [7]

Answer:

it is radiant and chemical

Explanation:

it the process in which it converts light energy known as radiant to chemical energy. Takes energy from the sun.

4 0
2 years ago
Read 2 more answers
Which macromolecule makes up the main structure of the cell membrane?
erik [133]

Answer:

The principal components of the plasma membrane are lipids (phospholipids and cholesterol), proteins, and carbohydrate groups that are attached to some of the lipids and proteins.

3 0
2 years ago
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