The B cells are not considered as first line defense structures of the immune’s system
Answer: Option C
<u>Explanation:</u>
Our body is protected internally by nature by many layers of defense. Any microbe or a foreign material that disturbs the body is defended by these barriers.
The first layer of defense required physical and chemical barrier such as the skin, mucous membrane, tears, saliva etc . The second line defense system involves the cells and the tissues that protect the body.
Answer:
- A
- D
- C
- A
- C
- D
- C
- B
- C
- B
Explanation:
When you see, Tbsp and tsp, you count them with a measuring spoon.
When you see, c and a solid mass, you count them with a measuring cup for dry.
When you see a liquid you count them with a measuring cup for liquid ingredients.
Answer:
The gopher tortoise is a keystone species, meaning that it's very important to the health of the ecosystem it inhabits. Gopher tortoise burrows provide shelter to hundreds of different animals, ranging from frogs to owls and even endangered indigo snakes
Explanation:
pls brainliest
mountains in North America appearing to match up with mountains in Northern Europe
Explanation:
The original theory of continental drift had access to evidence about the mountains in North America and Northern Europe appearing to match up.
- The theory of continental drift was proposed by Alfred Wegener in 1912.
- He suggested that continents have moved to their present day position from originally jointed form.
- He called the ancient single landmass Pangaea.
- Part of the evidence he had to put forward this proposition is that mountains along continental margins looked the same.
- Such as North America and Northern Europe, South America and Africa.
Learn more:
Wegener brainly.com/question/5002949
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