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meriva
3 years ago
7

How much time does it take a person to walk 8 km east at a velocity of 4 km/h

Biology
2 answers:
givi [52]3 years ago
3 0

Answer:

it takes 2 hours

Explanation:

brainlyest?

klasskru [66]3 years ago
3 0

Answer:

2 hours

Explanation:

Time = Distance ÷ Speed

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The amount of water retained by soil after drainage is : . نقطة واحدة gravitational capacity mineral water soil water field capa
KiRa [710]

Answer:

what does that mean

Explanation: I DO NOT SPEAK THAT LANGUAGE

8 0
3 years ago
Tim and Jan have freckles but their son Mike does not have. Show with a punnete square how this is possible. Tim and Jan have tw
Snowcat [4.5K]

Answer:

  • Parents are heterozygous for the trait, and this is how they got a child with no freckles.
  • The probability that the two other children will have freckles is 9/16

Explanation:

Due to technical problems, you will find the complete explanation in the attached file.

Download pdf
8 0
3 years ago
Even before modern observations provided evidence that supports the Theory of Plate Tectonics, people developed theories that th
Goryan [66]

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C the shapes of continents appeared to allow them to fit together

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3 years ago
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Alternation of generations in plants refers to the fact that plants make a multicellular haploid structure (free living in some
Yuki888 [10]

Answer:

True.

Explanation:

The life of a plant alternates between haploid and diploid generations. From a fully matured diploid plant (2n) which is known as sporophytic generation a lot of spores which are haploid are produced by the process of meiosis. By the process of mitosis, these spores then develop into new multi-cellular plant which is also haploid just like spores (n), this phase of plant life cycle is known as gametophytic phase. This haploid plant is capable of producing gametes (n) which are also haploid. When two such gametes from the same or different plant fuse with each other a diploid cell is produced which is known as zygote (2n). This zygote subsequently divides and grows into a diploid plant which is a part of sporophytic generation. This is how the entire life cycle of various plants alternate between gametophytic and sporophytic phase.

This diploid plant then later again produces spores and the cycle of reproduction goes on in the same manner as described above.

8 0
3 years ago
Of the following list, choose the functions of proteins in living cells. Multiple select question. They help the body recognize
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The functions of proteins include:

  • They transport oxygen in the blood of vertebrates.

  • They play a key role in moving materials within cells.

  • They help the body recognize and destroy foreign microbes and cancer cells.

  • They catalyze chemical reactions.

<h3>Functions of proteins</h3>

Proteins are macromolecules that helps in the maintenance of metabolic activities and repair of worn out tissues of the body.

There are several functions of proteins which has helped in it's classification. The different types of Protein found in the body are:

  • Antibodies: These are proteins that function to recognize and destroy foreign microbes and cancer cells.

  • Enzymes: These are proteins that catalyze chemical reactions in the body.

  • Transport proteins: They play a key role in moving materials within cells.

  • Haemoglobin: These are blood proteins that transport oxygen in the blood of vertebrates.

Learn more about proteins here:

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8 0
2 years ago
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