science gr8 chptr6

Question 1

what are the two types of tissues that make up skin

Answer 1

epithelial and connective

Question 2

2: When leaves detect the decrease in sunlight as winter approaches, what happens?

Answer 2

They reduce the production of chlorophyl and break down whatever’s left causing the leaves to turn red and orange

Question 3

3: What does a gizzard in an earthworm do?

Answer 3

contains particles of sand and gravel that break down food

Question 4

4: Explain how a frog that is underwater exchanges gases

Answer 4

When a frog is underwater, its skin becomes permeable to water and gases. Blood vessels in the cells of the moist outer skin allow oxygen to diff use from the water into the bloodstream. In the same way, carbon dioxide diff uses out of the blood cells into the water.

Question 5

5: Some bacteria can detect chemicals, such as sugar, in their enviornment and move towards them

Answer 5

true

Question 6

6: What are the two main systems in plants

Answer 6

the root system and the shoot system

Question 7

Name two types of protists

Answer 7

amoeba and paramecia

Question 8

List two types of differentiated cells

Answer 8

muscle and epithelial cells

Question 9

What is cellular differentiation?

Answer 9

the process by which a cell becomes specialized
to perform a specific function

Question 10

What does an earthworm use to achieve locomotion?

Answer 10

muscle contractions

Question 11

Explain how humans exchange gas. Start with this sentence starter.

Answer 11

During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs.

Question 12

Where can you find the flap like stucture that opens when you breathe and closes when you swallow?

Answer 12

The trachea is found in your lower neck and upper chest

Question 13

Every organism can be classified into one of five smaller groups

Answer 13

protists, fungi, bacteria, plants, animals

Question 14

What are the two main systems in plants?

Question 15

The simpliest and most abundant unicellular organism on Earth are

Answer 15

bacteria

Question 16

Earthworms “suck” in food using the ____

Answer 16

pharynx

Question 17

Plants use roots to absorb water and nutrients from the soil. Specify smthsmth like tissues tansport water and minerals from the roots to other parts of the plants

Answer 17

xylem vessels are a system of tubes in a plant that transports water and minerals from the roots to the shoots and leaves

Question 18

Many unicellular organisms live in bodies of water and must move around to find food. Explain how a paramecia Or an amoeba obtains nutrients.
A:

Answer 18

Nutrition in an Amoeba occurs through a process called phagocytosis. Pseudopods extend around the food material and form a vacuole, where its gets broken down to smaller pieces, to then make nutrients

Question 19

Two or more tissues that work together to perform one or more functions are called

Answer 19

organs

Question 20

2 types of fungi

Answer 20

field mushrooms and bakers yeast