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krok68 [10]
2 years ago
7

Does carbon dioxide enter a plant when the guard cells swell or when they shrink?

Biology
1 answer:
ElenaW [278]2 years ago
7 0

Answer: When cells swell up

Explanation: Plants need carbon dioxide and <u>stomata allow the plant to take in carbon dioxide to perform photosynthesis</u>. The "lips" are actually individual cells (called guard cells) <u>that can swell up to open the stomata</u> or deflate to close them off.

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Which situation describes mutualism?
Nonamiya [84]

Answer:

C

Explanation:

Mutualism is a relationship between two parties where <em>both parties </em>are benefited.

This means the answer would be C- "Ants feed on aphid wastes and protect the aphids from predators."

The <em>ants</em> benefit from a feeding source.

The <em>aphids</em> benefit from predator defense.

<u>In answer C, both parties are benefited, so this is mutualism!</u>

5 0
2 years ago
Read 2 more answers
How do bone markings on modern human skeletons relate to bone markings found on the fossils of common ancestors?
STALIN [3.7K]

Answer:

Explanation:

As with the other markings, their size and shape reflect the size of the vessels and nerves that penetrate the bone at these points. ... The surface features of bones depend on their function, location, attachment of ligaments and tendons, or the penetration of blood vessels and ner

3 0
2 years ago
Leonard designed a parallel circuit to light two lightbulbs. But his circuit doesn’t work. Which two items in the circuit must b
tamaranim1 [39]

In a parallel circuit, the voltage across each of the components is the same, and the total current is the sum of the currents through each component.

If two or more components are connected in parallel they have the same potential difference ( voltage) across their ends. The potential differences across the components are the same in magnitude, and they also have identical polarities. The same voltage is applicable to all circuit components connected in parallel.

If each bulb is wired to the battery in a separate loop, the bulbs are said to be in parallel.


8 0
2 years ago
Even though plants cells photosynthesize, they still use their mitochondria for oxidation of pyruvate. This will occur in _____.
lidiya [134]

Answer:

All cells all the time.

Explanation:

Photosynthesis is the process of the formation of organic nutrients, glucose in the presence of sunlight by fixing CO2. Cellular respiration is the oxidation of nutrients. The process forms ATP which in turn serve as energy currency for living cells.  

Plant cells perform cellular respiration to obtain the energy stored in the chemical bonds of glucose. The energy obtained by cellular respiration is used to perform the vital functions by cells. Therefore, irrespective of photosynthesis, cellular respiration occurs in all the cells of the plants all the time to fulfill the energy requirement for growth and development.

7 0
2 years ago
Soon after the island of Hawaii rose above the sea surface (somewhat less than 1 million years ago), the evolution of life on th
krek1111 [17]

Answer:

The correct answer is- founder effect  

Explanation:

Founder effect occurs when a small number of individual isolates from the majority of the population by natural calamity or any other region. These isolated individuals show less genetic diversity than the larger population because they are less in numbers.  

Therefore founder effect makes a small group of individuals isolate from a bigger population and make them occupy a different habitat. So a founder population can go on a newly developed island and start reproducing there.

A founder population over time converts into a new species because of reproductive isolation from the main population.  So the evolution of life on the island of Hawaii should have been most strongly influenced by founder effect.

3 0
2 years ago
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