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densk [106]
3 years ago
13

Loretta and her friends want to find out which of their pets can run the fastest. Which kind of scientific investigation should

they use?
A.

a controlled experiment

B.

development of a model

C.

a review of existing work
Biology
1 answer:
antiseptic1488 [7]3 years ago
3 0
They should do A, a controlled experiment
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How does comparing species genomes show accurate evidence of evolution?
ira [324]

Answer:

DNA and the genetic code reflect the shared ancestry of life.

Explanation:

DNA comparison can show how related species are. Biogeography. The global distribution of organisms and the unique features of island species reflect evolution and geological change.

8 0
4 years ago
Define exchange reaction
Romashka-Z-Leto [24]

An exchange reaction occurs between compounds that, when written as a molecular equation, appear to involve the exchange of parts between the two reactants. An exchange reaction will occur when ions in solution form insoluble products, weak electrolytes, or non electrolytes.

7 0
3 years ago
Read 2 more answers
Select the correct answer.
ahrayia [7]

Answer:

B

Explanation:

unusually weak magnetic fields on the sun paired with reduced solar activity cause sunspots to disappear.

4 0
3 years ago
Painful swelling of one or both testes, commonly associated with mumps that develop after puberty - orchitisremoval of the fores
dsp73

There are different terms which are required to briefly describe. They are described below.

<h3><u>Explanation</u>:</h3>

During mumps infection, the virus effects the testis leading to a painful inflammation including inflammation of scrotum too. This is usually seen after puberty, called orchitis.

The procedure of removal of foreskin of penis is called circumcision. It is very common among muslims, but also a surgical approach to reduce penile infections.

The test that includes applications of radiation from outside is called <em>teletherapy</em> test.

Semen analysis actually evaluates the number of active sperms in semen after a vasectomy.

PSA or Prostrate specific antigen test actually evaluates the condition of testis in case of a BPH or Benign Prostatic Hypertrophy.

The VasoVasectomy is actually the reversal of vasectomy where the vas differens is actually joined so that the person gets fertile again.

Epididymectomy is the removal of epididymis in case of infection.

Balanoplasty is the repair of glans penis in case of an infection.

Androgens are the male hormone responsible for male characters.

Diseases of gonads are called gonadopathy.

Prostatomegaly or Benign Prostatic Hypertrophy is the enlargement of prostrate.

Spermicide are the chemicals that are intended to kill sperms.

Spermatorrhoea is the flow of sperms.

Vasectomy is the process of cutting and removal of vas deferens.

Vesiculitis is the inflammation of seminal vesicles.

Flow of seeds is called gonorrhea which is a disease.

Prostatolith is a presence of stone in prostrate which is very uncommon.

Gonadectomy is the surgery related to removal of gonads.

Epididymitits is the inflammation of epididymis which is mainly due to any infection.

Perineorrhaphy is the suture of perineum related to an after surgery.

Prostratolithotomy is the surgery to remove a stone from prostrate.

Inflammation of testis is called orchitis.

Scrotoplasty is the removal of scrotum due to an infection.

Balanitis is the inflammation of glans penis due to an infection.

Variocele is the inflammation of a vein.

Vesiculogram utilizes Xray writings to note the action of seminal vesicles.

8 0
3 years ago
Isotopes of uranium are the most common fuel used in nuclear power plants. True/ False
ruslelena [56]
This is true, they are a large unstable isotope that can be broken down into smaller more stable elements to release energy to power turbines and generate electricity
7 0
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