The number of currently described species on the planet is about ________.17,000
150,000
1.5 million
10 million

Answers

Answer 1
Answer:

The number of currently described species on the planet is about: C. 1.5 million.

What is a species?

A species can be defined as a biological classification of related organisms that have similar characteristics and they are capable of breeding with one another in a cycle.

Some examples of species of various organisms include the following:

  • Giraffa camelopardalis
  • Humans
  • Moose (Alces laces)
  • Black bears (Ursus americans)
  • Jack pines (Pinus banksiana)

In conclusion, there are currently about 1.5 million species on planet Earth.

Read more on species here: brainly.com/question/15971107

Answer 2
Answer:

Answer:

The correct answer will be option- 1.5 million.

Explanation:

Biodiversity refers to the variety of species and ecosystem present on the earth in which they are part of it. The biodiversity comprises of three components: species diversity, ecosystem and genetic diversity.

The number of species present on this planet is found to be around 1.5 million in which 17,000 new species are being added to the existing number.

Thus, option- 1.5 million is the correct answer.


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Which of these is an example of tertiary prevention?A. Avoiding smoking and drinking alcohol
B. Getting screened for skin cancer
C. Dialysis for damaged kidneys
D. Washing hands

Answers

Answer:C. Dialysis for damaged kidneys

Explanation: took the quiz

Your considering career options in health field which of the following would focus on performing medical test on animals

Answers

Answer: Become a veternarian.

What gametes are produced by the following organisms:_______. a. Genotype YyRr, if Y and R are on different chromosomes
b. Genotype YyRr, if dominant Y and R are on the same chromosome, no crossing over
c. Genotype YyRr, if dominant Y and recessive r are on the same chromosome, no crossing over
d. Genotype YyRr, if dominant Y and R are on the same chromosome, 50% crossing over

Answers

Answer:

The correct answer would be -

1- YR, Yr, yR and yr.

2. Yr, yR

3. YR, yr

4. YR, Yr, yR & yr

Explanation:

A mature male or female haploid germ cell that fuses with another gamete of the opposite sex during the process of fertilization to make a zygote in sexual reproduction.

The law of Independent Assortment presented by Mendel says that alleles for different traits are passed and assort independently of one another in the gametes.

1. If Y and R on different chromosomes then they will produce four gametes and assort independently - YR, Yr, yR & yr.

2) If Y and R on the same chromosomes and no crossing over occurs then they will produce only two gametes as Y and R will not come together - Yr & yR.

3).  if dominant Y and recessive r are on the same chromosome, no crossing over then only two gametes will form as Y and r will not assort together - YR & yr.

4). if dominant Y and R are on the same chromosome, 50% crossing over produces 4 types of gametes, YR, Yr, yR & yr.

What is positive feedback loop is also know as

Answers

exacerbating feedback , self-reinforcing feedback

Answer:

positive feedback (exacerbating feedback, self-reinforcing feedback) is a process that occurs in a feedback loop which exacerbates the effects of a small disturbance.

Zookeepers carry a stretcher that holds a sleeping lion. The total mass of the stretcher and lion is 175 kg. The lion's forward acceleration is 2 m/s2. What is the force necessary to produce this acceleration?

Answers

Final answer:

The force necessary to produce the acceleration of the lion is 350 N.

Explanation:

To find the force necessary to produce the acceleration of the lion, we can use Newton's second law of motion, which states that force equals mass multiplied by acceleration (F = m × a). In this case, the mass is the total mass of the stretcher and lion (175 kg) and the acceleration is given as 2 m/s2. Substituting these values into the formula, we get:

F = 175 kg × 2 m/s^2

Simplifying the calculation gives us the force necessary to produce the acceleration of the lion, which is 350 N.

Learn more about acceleration here:

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Answer:

350N

Explanation:

formula = Mass x Acceleration

= 175 x 2

= 350N

why I have N ( Newton) is because the unit of force is Newton.

Dna, or the instructions for making proteins, is found within the _____ of the cell; while protein synthesis machinery is found in the _____ of the cell.

Answers

DNA, or the instructions for making proteins, is found within the nucleus of the cell; while protein synthesis machinery is found in the cytoplasm of the cell.   The nucleus is the site of transcription, production of messenger RNA (mRNA) and after being post-transcriptional modified mRNA is exported from the nucleus. Translation of mRNA occurs within the cytoplasm (proteins are synthesized).