Question

can you answer these

A farmer has applied a pesticide to control a pest population that is affecting her crops. The pest population has reacted as shown below.

A chart begins with 4 green bugs and 1 brown bug. The brown bug survives and produces brown offspring.
Which best describes the process that the pest population has experienced due to this environmental change?
genetic diversity
natural selection
natural resistance
gene flow

Fossils show how the complexity of living organisms has changed over time. Gerobatrachus hottoni was a unique organism that lived during the Permian period between ancient salamanders and ancient frogs. Scientists have nicknamed this organism the “frogamander” because it is believed to be a common ancestor of both modern frogs and salamanders.

A frogamander.

Which type of fossil is Gerobatrachus hottoni most likely to be?
intermediary
phylogenic
transitional
index

Antoinette was diagnosed with hypertension, a noncommunicable disease in which her blood pressure is higher than normal. What is the most likely explanation for why she is hypertensive?
She had a diet high in salt intake.
She did not wash her hands enough.
She was bitten by a mosquito.
She was never vaccinated against hypertension.

Which is accurate about the six kingdoms?
One is eukaryotic, and five are prokaryotic.
Four are eukaryotes, and two are prokaryotes.
Four are prokaryotes, and two are eukaryotes.
Three are eukaryotes, and three are prokaryotes.

Which statement correctly describes the electrons in a water molecule?
Electrons are pulled closer to the hydrogen atoms.
Electrons are pulled closer to the oxygen atom.
Electrons are located inside the nucleus of the hydrogen atoms.
Electrons are located inside the nucleus of the oxygen atoms.

Answer 1

1) Natural selection — the pesticide caused differential survival and reproduction of the brown-resistant bug, changing the population.

2) Transitional — Gerobatrachus is a transitional fossil between ancient salamanders and frogs.

3) She had a diet high in salt intake — hypertension is noncommunicable and often linked to lifestyle/dietary risk factors like high salt.

4) Four are eukaryotes, and two are prokaryotes — (Eukaryotes: Protista, Fungi, Plantae, Animalia; Prokaryotes: Bacteria, Archaea).

5) Electrons are pulled closer to the oxygen atom — oxygen is more electronegative, so the shared electrons in H2O are attracted more to O, making the molecule polar.