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nalin [4]
3 years ago
13

There are some natural threats to the ozone layer. True False

Biology
1 answer:
Zepler [3.9K]3 years ago
5 0

Explanation:

uhhh false?? Probally since global warming caused the ozone layer to get affected plus nature is good

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Why was the total length of each fetus multiplied by 2.5?
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4 0
3 years ago
C. Apply Concepts Some people might tell
sineoko [7]

Explanation:

Animals recognize their owners by scent, voice, & other sounds..

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2 years ago
Imagine you have been asked to teach a small group of your peers about animal organs. Create 10 multiple-choice questions to tes
Vinvika [58]

Answer:

Explanation:

Question 1: The brain is an example of

a) asymmetrical

b) radical symmetry

c) bilateral symmetry

d) vertical symmetrical

Question 2: Which of this organisms display radial symmetry as adults, but their larval stages exhibit bilateral symmetry

a) Dog

b) Starfish

c) Caterpillar

d) crab

Question 3: which statement defines the nervous system. Pick one

1) Nervous tissue make up the lungs, stomach and throat

2) Nervous tissue is one of four major classes of tissues and makes up the central nervous system and the peripheral nervous system

Question 4: Which of the following tissue types consists of cells that generally have a spacious intercellular area consisting of a matrix of various types?

a) connective

b) epithelial

c) muscle

Question 5: Which of the following connective tissue cells consists of a matrix of gelatinous material?

a) cartilage

b) lymph

c) areolar, adipose, reticular, dense

Question 6: Muscle tissue functions as a single unit, and is often connected to the same nerve bundles.

a) True

b) false

Question 7: Epithelial tissue are large sheets of cells covering

a) all surfaces of the body exposed to the outside world and lining the outside of organs

b) the nervous system

c) the blood vessels

d) the brain

Question 8: Which of the following is the epithelial tissue that lines the interior of blood vessels?

a) columnar

b) pseudostratified

c) simple squamous

d) transitional

Question 9: Which of the following is not a part of peripheral nervous system?

a) Cranial nerve

b) Ganglion

c) Spinal nerve

d) Spinal cord

Question 10:  Peripheral nervous system consists of the brain and spinal cord.

a) True

b) False

6 0
4 years ago
When referring to cell division, oncogenes are most like ________ while tumor suppressor genes are most like ________. the brake
Inga [223]

Oncogenes are most like the gas pedal on a car, while tumor suppressor genes are most like the brakes on a car. Oncogenes and tumor suppressor genes are mutated in cancer cells.

Oncogenes are genes overexpressed in cells in which they should not be expressed, thereby leading to cancer.

Some examples of oncogenes are growth factors such as, for example, the  Platelet-derived growth factor (PDGF) or Epidermal growth factor (EGF).

Conversely, tumor suppressor genes are genes that act to regulate cell division and replication, thereby their inactivation also leads to cancer.

A well-known example of a tumor suppressor gene is the p53 gene that acts to control cell division and apoptosis (programmed cell death).

Learn more in:

brainly.com/question/14662375

5 0
3 years ago
Which example shows an organism maintaining homeostasis? A. a bacterium dividing into two B. a person sweating on a hot day C. a
gladu [14]
B- A person sweating on a hot day 
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4 years ago
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