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4 years ago

Need help pls I’m being timed

Biology

1 answer:

VMariaS [17]4 years ago

7 0

I believe the left chamber has a higher concentration of neon gas because it has more neon atoms in it, and the right chamber has a higher concentration of helium gas because it has more helium atoms in it.

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What is the general formula for fatty acids?

notsponge [240]

Answer:

Fatty acids are long chain carboxylic acids, they contain the carboxyl, COOH, functional group. The general formula for a fatty acid is R-COOH where R represents a long hydrocarbon chain. If the hydrocarbon chain, R, contains only single bonds between the carbon atoms, the fatty acid is said to be saturated.

5 0

3 years ago

Plz help asap???!!!!30pts

attashe74 [19]

Answer:

What do you need to be answered

Explanation:

6 0

3 years ago

Read 2 more answers

Choose the correct statements 1.Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same f

Mamont248 [21]

Answer: The correct statements are 1 and 2:

1.Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant.

2.Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.

Explanation:

Pollination is the transfer of pollen grains from an anthers to a receptive stigma. In most species of flowering plants, external agents bring about pollination. Also, flowers have evolved special structures and mechanisms to ensure successful pollination.

There are two types of pollination

--> Self pollination: This takes place when mature pollen grains from the anther of a flower fall on the stigma of the same flower or that of another flower on the same plant. This type of pollination brings the male gametes and egg cells of the same plant together. The resultant offspring show very little genetic variation.

--> Cross pollination: This occurs when mature pollen grains of a flower are transferred to the stigma of a flower of another plant of the same or closely related species. This brings the male gametes and egg cells of two different parent plants together. Therefore, there is greater genetic variation among the offspring.

7 0

3 years ago

The work of scientists usually beings with

Dmitriy789 [7]

Asking a question is usually what the first step is.

3 0

4 years ago

Read 2 more answers

Cindy collects 20 insects for her biology class, all of which are spiders, dragonflies, and cicadas. (Note that a spider has 8 l

Ronch [10]

Cindy collects 4 cicadas in total.

Let,

D represent the number of dragonflies

C represent the number of cicadas

S represent the number of spiders

Since the total number of insects is 20:

Equation 1

D+C+S=20

A spider has 8 legs, a dragonfly has 6 legs, and a cicada has 6 legs. Since the total number of legs is 138:

Equation 2

6D+6C+8S=138

A spider has 0 wings, a dragonfly has 4 wings, and a cicada has 2 wings. Since the total number of wings is 36:

Equation 3

4D+2C+0S=36

Multiplying equation 1 with 6 and subtracting it from equation 2:

6D+6C+8S-6(D+C+S)=138-6(20)

2S=18

S=9

Multiplying equation 1 with 4 and subtracting it from equation 3:

4D+2C+0S-4(D+C+S)=36-4(20)

-2C-4S=-44

Substituting S with 9:

-2C-4(9)=-44

-2C=-8

C=4

Thus, Cindy collects 4 cicadas in total.

Learn more about insects here:

brainly.com/question/14182820

#SPJ4

7 0

2 years ago