20.10.2021

match the agricultural job to the sector of agriculture in which it belongs

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Biology

Select the correct answer. Maria wanted to grow a fern in her backyard. Acting on a suggestion from a friend, she collected brown dots from the underside of a fern’s leaves and then potted them. After a few days, Maria saw small fern leaves erupting from the pot. Which statement explains this phenomenon? A. The fern transitioned from gametophyte generation to sporophyte generation. B. The fern grew as a result of mitosis. C. The fern transitioned from sporophyte generation to gametophyte generation. D. The fern grew to be genetically identical

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Option A : the fern transitined from gametophyte generation to sporophyte generation.

Biology

In school, Brendan has been conditioned to get up from his seat every time he hears the school bell ring. Brendan was sitting at McDonalds eating with friends, when a loud sound similar to the school bell rang from the kitchen. Without even thinking, Brendan jumped out of his seat at McDonalds. Label the following for this scenario: Unconditioned Stimulus (US): Conditioned Stimulus (CS): Unconditioned Response (UR): Conditioned Response (CR):

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In school, Brendan has been conditioned to get up from his seat every time he hears the school bell ring.

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Biology

Which object was developed to help astronomers learn more about the Sun?

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The Parker probe.

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Biology

One parrot species that feeds on large seeds nests is in the same tree as a parakeet that feeds on small seeds. How are the birds able to coexist?

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One parrot species that feeds on large seeds nests is in the same tree as a parakeet that feeds on small seeds, they occupy different niches.

Biology

Which is most likely to help an introduced species become invasive? a low reproductive rate big difference between original and new habitats a strong predator in new habitat great tolerance to a wide range of conditions

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Explanation: with a great tolerance to a wide range of conditions the species would adapt and thrive which would allow it to reproduce and have all it needs to survive, grow, and take over.

Biology

Which could be the location where water emerges from the surface as a spring? 1 2 3 4

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A spring is a natural discharge point of subterranean water at the surface of the ground or directly into the bed of a stream, lake, or sea. Water that emerges at the surface without a perceptible current is called a seep. Wells are holes excavated to bring water and other underground fluids to the surface.

The image shows a cross-section of land scape.

Biology

Complete the T-chart by categorizing each statement as something that would most likely be relevant to gene flow or genetic drift. Some answers will fit in both columns depending on the situation. is random is a mechanism for evolution is often related to disasters is also called “migration” deals with movement between populations

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The T-chart by categorizing each statement as something that would most likely be relevant to gene flow or genetic drift. Some answers will fit in both columns depending on the situation. is random is a mechanism for evolution is often related to disasters is also called “migration” deals with movement between populations...

Biology

What are the roles of fungi? Check all that apply. Fungi can be used to develop medicine. Fungi are a food source for animals and humans. Fungi produce oxygen to breathe. Fungi destroy rocks and minerals. Fungi are natural recyclers. Fungi cause infections.

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Fungi are a food source for animals and humans. Fungi produce oxygen to breathe. Fungi destroy rocks and minerals. Fungi are natural recyclers.

Biology

What change is likely to occur in a population of beetles that suddenly faces predation from an invasive species of frogs? A. The beetles survivorship curve will change type. B. The beetles minimal viable population will decrease. C. The carrying capacity of beetles will increase. D. The population density of beetles will decrease.

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D. The population density of beetles will decrease.

Biology

Using the term water potential, explain why the onions ; (i)gained mass when soaked in dilute solutions of sodium chloride (ii)lost mass when soaked in concentrated solutions of sodium chloride

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when soaked in dilute sodium chloride solution onion gain mass because of the process of osmosis.

Explanation: Osmosis is a process when there is movement of water from the region of comparatively higher concentration to the region of lower concentration across in a permeable membrane.

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