BIOLOGY MIDDLE SCHOOL

Are deadly man made viruses possible?

Answers

Answer 1
Answer:

Answer:

Yes i think

Explanation:


Related Questions

HIGH SCHOOL

The fungus Coccidioides immitis is found in the soil. Humans contract coccidioidomycosis by inhaling fungal spores. Which of these descriptions applies to the role of soil in transmission of coccidioidomycosis?

Answers

Answer:

fungus

Explanation:

HIGH SCHOOL

A team of scientists is studying a mitochondrial DNA sequence shared by two species, and they determine that the DNA has a constant mutation rate. The DNA sequences of the two species are shown below. Species A: GTAGGCATTCGAT
Species B: GCACGCATACGTT

The scientists use the idea of molecular clocks to determine that the two species diverged from a common ancestor 40 million years ago. Based on this information, how much more time would it take for the two species to differ by a total of 10 base pairs?

80 million years
200 million years
60 million years
40 million years

Answers

Answer:

The correct answer would be 60 million years.

The molecular clock is a technique used to determine the time when the two species diverged from a common ancestor. It uses the mutation rate to determine the same.

Mutation rate is the rate at which a number of mutations take place in a given unit time.

If we compare the DNA sequence of the given two species, we would find that four mutations have taken place in forty million years.

Species A: GTAGGCATTCGAT  

Species B: GCACGCATACGTT  

Thus, the mutation rate of the species is one mutation per 10 million years.

The DNA sequences already have 4 mutations. Thus, for a total of 10 mutations, 6 mutations are required.

Thus, in 60 million years the two DNA sequences would differ by a total of  10 nucleotides.

I think its 60 million
HIGH SCHOOL

The standard deviation of the tap water data is 1.086. The standard deviation of the salt water data is 1.107. Which explains why the standard deviation is the best measure of variability to use to compare the data?

Answers

Answer:

A). Nearly Symmetrical

Explanation:

Don't ask i kno all answers!

Answer:

I'm guessing the options are

A. The two distributions are nearly symmetric

B. The distributions do not overlap on the same range of temperatures.

C. The distribution of salt water boiling temperatures is left-skewed.

D. The distribution of tap water boiling temperatures is right-skewed.

The correct answer is A. The two distributions are nearly symmetric

Explanation:

This was the correct answer when I just took the test

HIGH SCHOOL

What process accounts for species diversity? A) mitosis B) meiosis C) predation D) symbiosis

Answers

The process that accounts for the diversity of species is Meiosis. Unlike in mitosis, when a cell is divided, Meiosis comes up with four daughter cells that have haploid chromosomes. They are not identical, unlike in mitosis, where two daughter cells are produced and are identical. 

Answer: It’s B) meiosis.

MIDDLE SCHOOL

Melting snow, rain, and storms can all lead to which event?

Answers

it could lead up to a warm event

HIGH SCHOOL

HCG is secreted in the human female immediately after conception. How would a gynecologist use this information?to detect pregnancy to detect abnormalities in the embryo
to facilitate embryo implantation

Answers

It is use to detect pregnancy. The human chorionic gonadotropin (hCG) test is done to check for the hormone hCG in blood or pee. Some hCG tests measure the correct sum. Some simply verify whether the hormone is available. HCG is made by the placenta amid pregnancy.
HCG is Human chorionic gonadotropin. it's produced by placenta after implantation. So answer to your question is To detect pregnancy. HCG is a hormone made by the pregnancy that can be detected in the mother's blood or urine even before the woman's missed period.
MIDDLE SCHOOL

Mountains are part of which earth sphere? A. Cryosphere
B. Geosphere
C. Hydrosphere
D. Lithosphere

Answers

Mountains are part of the lithosphere.

Answer: Geosphere

Explanation: Any of the almost spherical concentric regions of matter that make up the earth and its atmosphere, as the lithosphere and hydrosphere.

COLLEGE

Name three intermolecular forces that stabilize the structure of dna, and explain how they act.

Answers

The correct answers are:

(1) nitrogen bases form hydrogen bonds to their complementary bases

This is true as adenine forms a double bond with thymine and guanine forms a triple bond with guanine. 

(2) sugar-phosphate chains form ion-dipole and hydrogen bonds to the aqueous surroundings

This is how the DNA is stabilized not only from inside forces but also from the environment in where the DNA is found.

(3) sugar-phosphate chains stack above each other, allowing for interaction through dispersion forces.

This is the mechanism on how the sugar-phosphate chains act as a backbone for the DNA molecule.
MIDDLE SCHOOL

What is the value of using both observations and inferences in scientific research?

Answers

To compare data to draw more concrete conclusions when testing a hypothesis. 
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