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2 years ago

Which statement describes littoral zones?

2 answers:

6 0

The best answer is E) All of the above.

The littoral zone is the region where the land meets a body of water, and although the exact definition can vary, it generally includes land that is always dry and a region that is always submerged. A and B more or less say the same thing, and both describe the littoral zone. It almost always features vegetation (think of plants growing out of marshes and near/in the shore of rivers and lakes). It stabilizes the soil by providing a more gradual transition from land to water. For example, an area that only the high tide of the sea reaches will feature some chemical composition of the sea bed, such as more water and salinity, and some of the land further inland.

uranmaximum [27]2 years ago

6 0

The answer to thid question is B

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an organism is classified as a carnivore. is it a heterotroph or an autotroph? is it a producer, consumer, or decomposer?

kobusy [5.1K]

Heterotroph. Consumer

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3 years ago

Mendel conducted experiments with pea plants in order to:

Ber [7]

Answer:

Explanation:

Mendel didn't care about growing the best pea plants or producing more peas. The remaining an.swers are to do with traits which could be confusing. He had green and yellow pea plants to see what their offspring's traits would be

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3 years ago

Which statements describe planetesimals? Select three options. They are the origins of planets. They formed from gas and dust. T

Anika [276]

A solid minute object that is said to come together for the formation of the planet and are believed to produce cosmic dust are called planetesimal.

The options that best describes the planetesimals are:

Option A. They are the origins of planets.

Option B. They formed from gas and dust.

Option D. They are believed to have developed in debris disks.

The descriptions can be explained as:

It is believed that planets formation occurred through planetesimals. The formation happened from gas, dust particles and debris.

By the process of accretion, the discs coalesced and became bigger and solid over time. This bigger mass started attracting other matters towards each other because of gravitational force.

This pull resulted in either breaking or creation a bigger mass of pieces known as planetesimals. The collision continued to become bigger and solid planets we know today.

Therefore, options A, B and D are correct.

To learn more about planetesimals refer to the link:

brainly.com/question/10337322

6 0

2 years ago

Read 2 more answers

When corn plants are too tall, they lodge (topple over) prior to harvest. This is bad since the grain is often lost when it cann

Shalnov [3]

Answer:

The phenotypic variance= 2113

The eenvironmenal variance= 644

The genetic variance= 1469

The broad-sense heritability = 0.695

Explanation:

To determine the phenotypic variance, we need to know the calculate the environmental variance and the genetic variance first;

because Phenotypic variance = V(p) such that;

V(p) = V(e) + V(g)

where V(e) = environmental variance and V(g) = genetic variance

Therefore, Environmental variance can be defined as a portion of phenotypic variance due to differences in the environments to which the individuals in a population have been exposed. The total amount of variance observed is dependent on the genetic component, determined by the variation that is inherited.

This implies that V(e)= initial variance which was there in the parents ( i.e Variance of inbred line 1 = 311 and Variance of inbred line 2 = 333 )

V(e) = (311 + 333) = 644

Genetic Variance simply refer to the variance that occurs or preferrably , that is observed after inbreeding (i.e Variance of F1 = 316 and Variance of F2 = 1153)

V(g) = (316 + 1153) = 1469

Now, back to phenotypic variance = V(e) + V(g)

substituting the parameters we have; 1469 + 644 = 2113

Broad-sense heritability can be calculated as the ratio of total genetic variance to total phenotypic variance.

= V(g)/ V(p)

= 1469/ 2113

= 0.695

4 0

2 years ago

HELP !!!! When adenine pairs with thymine how many hydrogen bonds are formed?

Assoli18 [71]

two hydrogen bonds are formed between adenine and thymine

8 0

2 years ago