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sveta [45]
3 years ago
11

An experiment was designed to determine the effect of nitrates on algae growth. Two groups of algae were grown under identical c

onditions, except one group was watered with a dilute nitrate solution and the other group received water without nitrates. In this investigation, the group of algae grown without added nitrates is known as the?
Biology
1 answer:
krek1111 [17]3 years ago
6 0
Control group because nothing was added to it to affect it.
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Name the different divisions of animals according to their habitats​
sergiy2304 [10]

Explanation:

Terrestial Animals - Animals which can only live on Land.Examples:- BEAR- CAT- DOG- DEER

Aquatic Animals - Animals which can only live on Water.

Examples:- FISH- OCTOPUSES- LOBSTERS- SEAHORSE

Amphibians - Animals which can live both on land and on water.

Examples:- FROGS- TOADS- SALAMANDERS

Arboreal Animals - Animals which live primarily on trees.Examples:- SQUIRREL- RODENTS- CHAMELEON

7 0
3 years ago
A man is 1.7 m long. An amoeba is 17 um long. How does the length of the
grandymaker [24]
A man is 100,000 times larger in micrometers than the amoeba, since 17 micrometers is 0.000017 meters, and 1.7 meters is 1,700,000 micrometers
5 0
3 years ago
What contains genes that are the instructions for making proteins
Sonbull [250]

Answer:

What contains genes that are the instructions for making proteins

Explanation:

The DNA code contains instructions needed to make the proteins and molecules essential for our growth, development and health. DNA? provides instructions for making proteins

6 0
3 years ago
A student is constructing a model to illustrate the levels of organization for life on Earth.
Lisa [10]

Answer:

1: Population; 2: Biome;3: Ecosystem

Explanation:

Population refers to the number of people in a state. Biome is a large area characterised by it's vegetation, soil,climate, and wildlife. Ecosystem is a geographic area where plants, animals and other organisms exists

7 0
2 years ago
The inner mitochondrial membrane contains numerous inward folds called cristae, which greatly increase the surface area of this
erastova [34]

Answer:the villi of the intestine

Explanation:like the cristae of the mitochondria which increase the surface area for the production of ATP,the villi of the intestine acts similarly.

In animals, digested food pass from the stomach to the intestine. In the intestine , enzymes acts on the food. Absorption of food takes place there and there are some structures that facilitates it. The walls of the intestine have numerous foldings , alongside the presence of finger like projection called villi. Microvilli are also presence from the cell walls of the intestine . These projections increase the surface area for the absorbing of food .they brush against food in the intestine and promotes absorption of nutrients.

6 0
3 years ago
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