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Rainbow [258]
2 years ago
5

CAN SOMEONE PLEASEEEE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST !!!

Biology
1 answer:
JulsSmile [24]2 years ago
6 0

Answer:

When the rule of 70 applies to population, dividing 70 by the percentage of population growth should equal the time (in years) that the population needs to be double (option A)

Explanation:

The rule of 70 is useful to calculate the time in which a variable of any type can be duplicated. The calculation is done by dividing the number 70 by the percentage of growth of the variable.

<u>If the rule of 70 is applied to the population, it is possible to calculate, based on its growth rate, the time that population would need to double</u>.

If, for example, the growth rate of a population is 3 percent:

70 / 3 = 23,33

This indicates that a population, with a growth rate of 3% would need about 23,33 years to double.

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If a particular gene is located on the Z chromosome of this lizard species, describe why a lizard with a ZW genotype has a great
Alenkasestr [34]

Answer:

ZZ species will take more number of crosses to produce a recessive offspring.

Explanation:

Here Z seems to be the dominant allele.  A species having ZZ or homozygous dominant genotype shall not express the recessive phenotype until unless it has both recessive allele and this is not possible as of now or is dependent on the genotype of mating species and the number of generations of development.

If ZZ mates with WW, the offspring in F1 generation will have genotype ZW

However, if the offspring in the F1 generation are crossed then in next generation we could see organism with recessive phenotype i,e WW

ZW*ZW

ZZ, ZW, ZW, WW

While in case of organism having ZW type genotype, recessive phenotype will occur in the first generation cross with the ZW.

8 0
3 years ago
What is the correct sentence?
lorasvet [3.4K]

Answer: The correct sequence in the expression of a trait is gene > protein > trait (Option B).

Explanation:

During gene transcription, a linear fragment of DNA referred to as a 'gene' is used as template to synthesize a complementary messenger RNA (mRNA) sequence.

Subsequently, this mRNA is then used as template to create a protein by a process called translation.

Moreover, phenotypic traits can be defined as all observable characteristics that an organism has.

The phenotypic traits are largely determined by the expression of either enzymatic or structural proteins, which interact to shape the phenotype of an organism.

In conclusion, the correct sequence in the expression of a trait is gene > protein > trait (Option B).

3 0
2 years ago
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Membrane bound space for temporary storage in cell.
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Vacuoles are essentially sacs surrounded by a membrane. They are used by cells as temporary storage sites. They often store food, enzymes, and other materials needed by the cell, and some vacuoles store waste products.
3 0
3 years ago
What is a reasonable action that provides safer water for communities?
Ulleksa [173]

Answer:

1.Improve sanitation facilities by providing toilets and latrines that flush into a sewer or safe enclosure.

2.Promote good hygiene habits through education. ...

3.Implement rainwater harvesting systems to collect and store rainwater for drinking or recharging underground aquifers.

4 0
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Where is a meteorite found?<br> 1) in space <br> 2) in earth’s atmosphere <br> 3) hitting the sun
AnnZ [28]

Answer:

In space

Explanation:

Because it would be weird if it would be in earth's atmosphere, and hitting the sun is rare. Most likely to come from space

8 0
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