BIOLOGY HIGH SCHOOL

What pollutant forms when automobile emissions react with oxygen gas and ultraviolet light?A).sulfur dioxide
B).ozone
C).radon
D).carbon dioxide

Answers

Answer 1
Answer: Ozone is the pollutant that forms when automobile emissions react with oxygen gas and ultraviolet light.

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Choose the correct classification of 5x + 3x2 − 7x3 + 2.a. Third degree polynomial
b. Fourth degree trinomial
c. Sixth degree polynomial
d. First degree binomial

Answers

The highest power of x is 3, so this is a third degree multi-term expression, or polynomial. Thus, the answer is A.

Answer: a. Third degree polynomial

Step-to-step explanation:-

  • The degree of a polynomial is the highest degree of its individual terms with coefficients not equals to zero.

Given polynomial : 5x+3x^2-7x^3+2

We can see that the highest degree of x in the given polynomial is 3.

Therefore, the given polynomial 5x+3x^2-7x^3+2 is classified as a third degree polynomial.

Angiosperms _____. have flowers have cones are nonvascular are seedless

Answers


Angiosperms have flowers.

Angiosperms are plants which produce flowers and are thus commonly referred to as the flowering plants.

All angiosperms  produce flowers at some stage in their life. Flowers are important to the angiosperms  because they serve as the reproductive organ for the plant, providing a means for the plant to propagate itself. 

Angiosperms are the largest group of plants on earth. They account for approximately 80% of all known living plants. There are about 270,000 known species of angiosperms that live on the earth today.

Describe how cell cycle is regulated

Answers

Through the phosphorylation, Cdks signal the cell that it is ready to pass into the next stage of the cell cycle. As their name suggests, Cyclin-Dependent protein Kinases are dependent on cyclins, another class or regulatory proteins. Cyclins bind to Cdks, activating the Cdks to phosphorylate other molecules.

What is a function of cell membranes in humans? 1 : synthesis of amino acids
2 : production of energy
3 : replication of genetic material
4 : recognition of certain chemicals

Answers

Cell membrane helps in the recognition of certain chemicals.

Further Explanation:

Plasma membrane is an outer boundary of the cell. It is composed of phospholipids and proteins. It is also called selectively permeable membrane because it allows only selective substances to cross. The transportation of these molecules from extracellular fluid to intracellular fluid is called cellular transport. It can be active and passive transport. Active transport required energy for the movement of substances, whereas in passive transport the molecules move across the membrane without using energy.

There are three common cellular substances that can pass through cell membrane are water, carbon di-oxide and oxygen. These substances are transported through passive transport. The carbon di-oxide and oxygen move through the area of higher concentration to lower concentration. The oxygen diffuses into the cell through lipid bilayer because it is more concentrated outside the cell, whereas carbon dioxide diffuses out of the cell because it is more concentrated inside the cell.

Water moves through the membrane by the process called osmosis. It moves freely either through protein channels or by slipping between the lipid tails of the membrane. The water comes from higher concentration to lower concentration.

Learn More-

1. Learn more about a haploid cell during meiosis brainly.com/question/94813

2. Learn more about how are mitosis and binary fission similar brainly.com/question/6462270

3. Learn more about a dividing eukaryotic cell is treated with a drug that inhibits shortening of spindle microtubules. This will cause the cell division cycle to stop at the ____ stage. brainly.com/question/10767798

Answer Details:

Grade: High school

Subject: Biology

Chapter: Structure of cell

Keywords:

Plasma, membrane, recognition, chemicals, phospholipids, proteins, permeable, intracellular, molecules, oxygen, lipid, osmosis.

The cell membrane functions to recognize certain chemicals. Option 4 is correct.

Carbohydrates, proteins, and lipids are found on the cell membrane. Carbohydrates are covalently attached to proteins on the cell membrane to form glycoproteins. Lipids are attached to glycoproteins to form glycolic acid. These are called membrane carbohydrates. Most membrane carbohydrates are found on the surface of the cell and extend to the extracellular compartment. These membrane carbohydrates play an important role in the recognition of cells.

To learn more about the cell membrane, refer to the link:

brainly.com/question/15232148

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___ is one of the two types of transport tissue in vascular plants. It transports water from the roots of a plant to the stems and leaves. A. Xylem
B. Stomata
C. Phloem
D. Chloroplast

Answers

Answer:

Xylem

Explanation:

Xylem is vascular tissue that transports water and dissolved minerals from roots to stems and leaves. This type of tissue consists of dead cells that lack end walls between adjacent cells.

As a cook chops red onions he begins to tear up due to activation of the lacrimal gland. Which of the following nerves provided the stimulus?A) the vagus nerve (X)
B) the optic nerve (II)
C) the facial nerve (VII)
D) the olfactory nerve (I)

Answers

Answer:

C) the facial nerve (VII)

Explanation:

The facial nerve (VII) is a cranial nerve. The cranial nerves are those nerves which arise from the brain. Most of the cranial nerves contain both motor and sensory neurons. Cranial nerves are connect to the various organs. Cranial nerves are associated with parasympathetic nervous system.

The facial nerve supplies nerve to many glands of the head and neck including lacrimal glands.

Thus, the facial nerve (VII) provided the stimulus to the lacrimal gland that cause tear while chopping oninons.

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